A non-destructive pillow firmness testing device

Abstract

The utility model discloses a nondestructible pillow hardness testing arrangement, include: telescopic mechanism, set up in the extrusion mechanism circumference extrusion mechanism and set up in the inside fixed establishment, telescopic mechanism includes: drive motor and with drive motor fixed connection telescopic component, drive motor with telescopic component all set up in the inside fixed establishment, telescopic mechanism is used for controlling extrusion mechanism and moves in different directions, extrusion mechanism includes: extrusion piece, extrusion piece bottom with telescopic component fixed connection, and extrusion piece top is used for multidirectional extrusion to the detection object, and extrusion piece moves with telescopic component and moves, fixed establishment includes, realize the adaptability nondestructible clamping of different thickness pillow and are fixed in the extrusion piece middle above fixed cavity, avoid damaging pillow structure in the fixed process to reach the purpose of nondestructive testing.

Description

Technical Field

[0001] This utility model relates to a pillow hardness testing device, and more particularly to a non-destructive pillow hardness testing device. Background Technology

[0002] As an essential item in daily life, the firmness of a pillow directly affects the user's comfort and sleep quality. A pillow with appropriate firmness provides good support for the head and neck, maintains the natural curve of the spine, and avoids neck pain and stiff neck caused by pillows that are too firm or too soft. Different groups of people, such as those with cervical spondylosis, people of different ages, and people with various sleeping positions, have different needs for pillow firmness. Therefore, accurately measuring pillow firmness is of great significance for pillow production, sales, and consumer selection.

[0003] Therefore, it is necessary to improve a non-destructive pillow stiffness testing device in the prior art to solve the above problems. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a non-destructive pillow hardness testing device, aiming to solve the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a non-destructive pillow hardness testing device, comprising: a telescopic mechanism, a compression mechanism disposed on the circumference of the telescopic mechanism, and a fixing mechanism disposed on the inner side;

[0006] The telescopic mechanism includes: a drive motor, and a telescopic assembly fixedly connected to the drive motor; both the drive motor and the telescopic assembly are located inside the fixed mechanism; the telescopic mechanism is used to control the movement of the extrusion mechanism in different directions.

[0007] The extrusion mechanism includes: an extrusion component, the bottom of which is fixedly connected to the telescopic assembly, and the upper part of the extrusion component is used for multi-directional extrusion of the object to be tested. The extrusion component moves with the telescopic assembly.

[0008] The fixing mechanism includes a fixing cavity and a pressing member disposed above the fixing cavity; the pressing member is used to fix the object to be tested in the fixing cavity and non-destructively clamp it above the fixing cavity.

[0009] In a preferred embodiment of the present invention, the telescopic component includes a telescopic gear and a control shaft slidably connected to the telescopic gear; the telescopic gear has a sliding groove, and the sliding groove is slidably connected to the control shaft.

[0010] In a preferred embodiment of this utility model, the telescopic gear includes a large gear and a small gear that meshes with the large gear, and the small gear is fixedly connected to the drive motor.

[0011] In a preferred embodiment of the present invention, a sliding groove is formed on a large gear. Several sliding grooves are formed and symmetrically arranged. The two ends of the sliding groove are located near the center of the large gear and near the tooth groove of the large gear, respectively. The sliding groove is arc-shaped.

[0012] In a preferred embodiment of the present invention, the extrusion member includes an extrusion shaft and an extrusion plate fixedly connected to the extrusion shaft, the extrusion plate being arranged in an arc shape.

[0013] In a preferred embodiment of this utility model, the extrusion shaft is fixedly connected to the control shaft, and the extrusion shaft is slidably connected to the fixing mechanism.

[0014] In a preferred embodiment of this utility model, the pressing members are arranged in a circumferential array of several L-shaped rods, and the included angle of each pressing member divides the object to be tested into several parts.

[0015] In a preferred embodiment of this utility model, a limiting member is provided on the inner side of the bottom of the fixed cavity, and a limiting groove is formed on the inner side of the limiting member, and the limiting groove is slidably connected to the extrusion shaft.

[0016] In a preferred embodiment of this utility model, a plurality of fixing grooves are uniformly formed in the vertical direction on the outer side of the circumference of the fixing cavity.

[0017] In a preferred embodiment of this utility model, a fixing protrusion is provided on the inner side of the end point of the pressing member, and the fixing protrusion corresponds to the fixing groove.

[0018] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] (1) This utility model provides a non-destructive pillow hardness testing device. By setting a pressing member with a circumferential array of L-shaped rods and a fixing groove on the side wall of the fixing cavity to cooperate with it, the pressing member can be engaged with the fixing groove of different heights through the fixing protrusion, so as to realize the adaptable non-destructive clamping and fixing of pillows of different thicknesses in the middle of the pressing member above the fixing cavity, avoiding damage to the pillow structure during the fixing process, thereby achieving the purpose of non-destructive testing.

[0020] (2) This utility model provides a non-destructive pillow hardness testing device. The pillow to be tested is divided into five equal parts corresponding to the number of extrusion parts by the pressing part. The multiple extrusion parts evenly distributed around the circumference are synchronously driven by the telescopic mechanism to shrink towards the center or open outward, so that each extrusion plate can simultaneously extrude the area of ​​the pillow it is facing. This allows the device to complete the hardness test of multiple different parts of the pillow in one operation and obtain more comprehensive pillow hardness information. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a preferred embodiment of the present invention;

[0024] In the diagram: 1. Telescopic mechanism; 10. Drive motor; 11. Large gear; 12. Small gear; 13. Sliding groove; 14. Control shaft; 2. Extrusion mechanism; 20. Extrusion shaft; 21. Extrusion plate; 3. Fixing mechanism; 30. Fixing cavity; 31. Pressing component; 32. Fixing groove; 33. Limiting component. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] As shown in the figure, a non-destructive pillow hardness testing device includes: a telescopic mechanism 1, a compression mechanism 2 disposed around the circumference of the telescopic mechanism 1, and a fixing mechanism 3 disposed on the inner side; the telescopic mechanism 1 includes: a drive motor 10, and a telescopic assembly fixedly connected to the drive motor 10; both the drive motor 10 and the telescopic assembly are disposed inside the fixing mechanism 3; the telescopic mechanism 1 is used to control the movement of the compression mechanism 2 in different directions; the compression mechanism 2 includes: a compression member, the bottom of which is fixedly connected to the telescopic assembly, and the top of which is used for multi-directional compression of the object to be tested, and the compression member moves with the telescopic assembly; the fixing mechanism 3 includes: a fixing cavity 30, and a pressing member 31 disposed above the fixing cavity 30; the pressing member 31 is used to fix the object to be tested in the fixing cavity 30 and non-destructively clamp it above the fixing cavity 30.

[0027] It should be noted that the device of this application sets the telescopic mechanism 1 inside the fixed cavity 30, and drives the telescopic component through the drive motor 10 to control the extrusion member to extend and retract in the axial direction of the extrusion member within the fixed cavity 30, thereby controlling the extrusion member to extrude and test the object to be tested from multiple directions. Before testing, the object to be tested is fixed above the fixed cavity 30, i.e., in the middle of the extrusion member, by the pressing member 31. During the fixing process, the included angle on the pressing member 31 divides the object to be tested into several parts, the number of which corresponds to the extrusion member. Then, the extrusion member simultaneously extrudes and tests several parts of the object to be tested. During the fixing process, the pressing member 31 is fixed to different degrees with the circumference of the fixed cavity 30, thereby completing the non-destructive fixing of the object to be tested. At the same time, the different degrees of fixing meet the requirements for fixing pillows of different thicknesses.

[0028] The telescopic mechanism 1 includes a drive motor 10 and a telescopic assembly fixedly connected to the drive motor 10. Both the drive motor 10 and the telescopic assembly are located inside the fixed mechanism 3. The telescopic mechanism 1 controls the movement of the extrusion mechanism 2 in different directions. The telescopic assembly includes a telescopic gear and a control shaft 14 slidably connected to the telescopic gear. A sliding groove 13 is provided on the telescopic gear, and the sliding groove 13 is slidably connected to the control shaft 14. The telescopic gear includes a large gear 11 and a small gear 12 meshing with the large gear 11. The small gear 12 is fixedly connected to the drive motor 10. Several sliding grooves 13 are provided on the large gear 11 and are symmetrically arranged. The two ends of the sliding groove 13 are located near the center of the large gear 11 and near the tooth groove of the large gear 11, respectively. The sliding groove 13 is arc-shaped.

[0029] It should be noted that the telescopic mechanism 1 is located inside the fixed mechanism 3, and the bottom of the drive motor 10 is fixed inside the fixed cavity 30. The drive motor 10 is a servo motor, and its forward and reverse rotation, rotation angle, rotation speed and other parameters are controlled by its internal program. This is common knowledge in the mechanical field of detection equipment and will not be described in detail. The output shaft of the drive motor 10 is fixedly connected to the pinion 12, and the pinion 12 meshes with the large gear 11. Thus, the drive motor 10 drives the large gear 11 to rotate forward and backward. Five arc-shaped sliding grooves 13 are provided on the large gear 11. One end of the sliding groove 13 is located near the center of the large gear 11, and the other end is located near the tooth groove of the large gear 11. The two ends of the five arc-shaped sliding grooves 13 are located on two concentric circles, and the curvature of the five sliding grooves 13 is the same, so that the sliding distance of the control shaft 14 connected inside is the same.

[0030] The extrusion mechanism 2 includes: an extrusion member, the bottom of which is fixedly connected to the telescopic assembly, and the top of which is used for multi-directional extrusion of the object to be tested. The extrusion member moves with the telescopic assembly. The extrusion member includes an extrusion shaft 20 and an extrusion plate 21 fixedly connected to the extrusion shaft 20. The extrusion plate 21 is arc-shaped and a pressure sensor is provided on the extrusion plate 21. The extrusion shaft 20 is fixedly connected to the control shaft 14 and slidably connected to the fixing mechanism 3.

[0031] It should be noted that there are five sets of extruders, evenly distributed in a circle around the control cavity. Each set of extruders includes an extrusion shaft 20 and an extrusion plate 21. The extrusion shaft 20 is slidably connected to the inner side of the fixing mechanism 3 and is fixedly connected to the control shaft 14. The extrusion plate 21 is arc-shaped, and a pressure sensor is installed on the inner side of the arc of the extrusion plate 21. As the drive motor 10 rotates, it drives the pinion 12 and the gear 11 to rotate, which in turn drives the control shaft 14 to move through the sliding groove 13. The control shaft 14 is fixedly connected to the extrusion shaft 20, which in turn drives the extrusion shaft 20 to move, which in turn drives the extrusion plate 21 to move. This allows the five extrusion plates 21 to extrude the object to be tested from different directions, and the pressure on the extrusion plates 21 is used to compress the object. The sensor detects the pressure condition of the object under test, that is, the pressure condition and firmness of the object under test, i.e., the pillow, are reflected by the change in the value on the pressure sensor. When the object under test is compressed to the first third (the degree of compression refers to the state between when the pressure plate 21 is fully open and fully closed during the contraction process; when it is fully open, it is not compressed; when the pressure plate 21 is closed to the first third, it is compressed to the first third; when the pressure plate 21 is fully closed, it is fully compressed), if the pressure sensor value changes slowly or does not change when the object under test is compressed to the first third, the pillow with edges is soft and has a lower firmness. If the pressure sensor value changes significantly when the object under test is compressed to the first third, the pillow is firmer.

[0032] The fixing mechanism 3 includes a fixing cavity 30 and a pressing member 31 disposed above the fixing cavity 30. The pressing member 31 is used to fix the object to be tested in the fixing cavity 30 in a non-destructive manner. The pressing members 31 are arranged in a circumferential array of several L-shaped rods, and the included angle of each pressing member 31 divides the object to be tested into several parts. A limiting member 33 is provided on the inner side of the bottom of the fixing cavity 30. A limiting groove is formed on the inner side of the limiting member 33, and the limiting groove is slidably connected to the extrusion shaft 20. Several fixing grooves 32 are evenly formed in the vertical direction on the outer side of the circumference of the fixing cavity 30. A fixing protrusion is provided on the inner side of the end point of the pressing member 31, and the fixing protrusion corresponds to the fixing groove 32.

[0033] It should be noted that the fixing mechanism 3 includes a fixing cavity 30 and a pressing member 31. The fixing cavity 30 is a circular cavity with a hollow interior. The drive motor 10 is fixedly connected inside the fixing cavity 30. The large gear 11 and the small gear 12 are both rotatably connected inside the fixing cavity 30. Five limiting members 33 are fixedly connected to the top inside the fixing cavity 30. The limiting members 33 are rectangular and arranged radially along the line connecting the center of the fixing cavity 30 to its circumferential edge. The limiting grooves on the limiting members 33 are also... The device is radially open, and the extrusion shaft 20 is slidably connected in the limiting groove. As the drive motor 10 drives the control shaft 14 to move in the sliding groove 13, and thus drives the extrusion rod to move, the fiber of the extrusion rod is controlled by the limiting groove. With the rotation of the large gear 11, the control shaft 14 is pushed to slide in the sliding groove 13, which in turn pushes the extrusion rod in the limiting groove to move back and forth in the limiting groove. This allows several extrusion rods to drive the extrusion plates 21 in different directions to open and close, thereby extruding and testing the object to be tested located on the fixed cavity 30.

[0034] A plurality of fixing grooves 32 are evenly provided on the circumferential side of the fixed cavity 30. The fixing grooves 32 are used to engage with the pressing member 31. The pressing member 31 is composed of five L-shaped shafts connected together. The five shafts are evenly distributed with the center of the fixed cavity 30 as the center. The ends of the shafts are fixedly connected to form the pressing member 31. The other end of the shaft is provided with a fixing protrusion, which can engage with the fixing groove 32. The included angle formed between the shafts is opposite to the pressure plate. Before the test, the object to be tested is placed above the fixed cavity 30. The pressing member 31 is pressed down, so that the fixing protrusion at the end of the pressing member 31 engages with the fixing groove 32, thereby clamping the object to be tested. The pressing member 31 formed by the circumferential array of shafts divides the object to be tested into five equal parts, and each part corresponds to the extrusion plate 21, so that the extrusion plate 21 can test different parts of the pillow.

[0035] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A non-destructive pillow firmness testing device, comprising: The telescopic mechanism (1), the extrusion mechanism (2) disposed on the circumference of the telescopic mechanism (1), and the fixing mechanism (3) are characterized in that; The telescopic mechanism (1) includes: a drive motor (10) and a telescopic component fixedly connected to the drive motor (10); both the drive motor (10) and the telescopic component are disposed inside the fixed mechanism (3); the telescopic mechanism (1) is used to control the extrusion mechanism (2) to move in different directions; The extrusion mechanism (2) includes: an extrusion member, the bottom of which is fixedly connected to the telescopic assembly, the top of which is used for multi-directional extrusion of the object to be tested, and the extrusion member moves with the telescopic assembly; The fixing mechanism (3) includes: a fixing cavity (30) and a pressing member (31) disposed above the fixing cavity (30); the pressing member (31) is used to fix the object to be tested in the fixing cavity (30) and non-destructively clamp it above the fixing cavity (30).

2. The non-destructive pillow hardness testing device according to claim 1, characterized in that: The telescopic assembly includes a telescopic gear and a control shaft (14) slidably connected to the telescopic gear; the telescopic gear has a sliding groove (13) which is slidably connected to the control shaft (14).

3. The non-destructive pillow hardness testing device according to claim 2, characterized in that: The telescopic gear includes a large gear (11) and a small gear (12) meshing with the large gear (11), and the small gear (12) is fixedly connected to the drive motor (10).

4. The non-destructive pillow hardness testing device according to claim 3, characterized in that: The sliding groove (13) is opened on the large gear (11). There are several sliding grooves (13) and they are arranged symmetrically. The two ends of the sliding groove (13) are located near the center of the large gear (11) and near the tooth groove of the large gear (11), respectively. The sliding groove (13) is arc-shaped.

5. The non-destructive pillow hardness testing device according to claim 2, characterized in that: The extrusion component includes an extrusion shaft (20) and an extrusion plate (21) fixedly connected to the extrusion shaft (20). The extrusion plate (21) is arranged in an arc shape and a pressure sensor is provided on the extrusion plate (21).

6. The non-destructive pillow hardness testing device according to claim 5, characterized in that: The extrusion shaft (20) is fixedly connected to the control shaft (14), and the extrusion shaft (20) is slidably connected to the fixing mechanism (3).

7. The non-destructive pillow hardness testing device according to claim 5, characterized in that: The pressing member (31) is arranged in a circumferential array of several L-shaped rods, and the included angle of each pressing member (31) divides the object to be tested into several parts.

8. A non-destructive pillow firmness testing device according to claim 7, characterized in that: The bottom inner side of the fixed cavity (30) is provided with a limiting member (33), and a limiting groove is opened on the inner side of the limiting member (33). The limiting groove is slidably connected to the extrusion shaft (20).

9. A non-destructive pillow firmness testing device according to claim 1, characterized in that: The fixed cavity (30) has several fixed grooves (32) evenly opened on the outer side of the circumference in the vertical direction.

10. A non-destructive pillow firmness testing device according to claim 9, characterized in that: The inner side of the end of the pressing member (31) is provided with a fixing protrusion, which corresponds to the fixing groove (32).

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