A furniture mechanical property detection loading pad

Abstract

The utility model relates to furniture test technical field, concretely relates to a furniture mechanical property detection loading pad, including elastic column, pad, first support and second support, and first support and second support are fixed in the both ends of elastic column respectively, pad is fixed in first support for resisting the furniture of being measured. Elastic column can follow pad and bend deformation and swing, and second support is fixed with adapter. When using, pad resists the surface of furniture of being measured, and adapter connects external power source, drives whole loading pad to exert pressure on furniture of being measured. When the surface of furniture of being measured is pressed and displaced, pad keeps sticking to furniture of being measured, therefore pad will swing with elastic column as fulcrum. Compared with prior art, elastic column is stronger in the ability of adapting deformation, and swing center is closer to loading surface, therefore can satisfy the requirement of standard more, moreover simple structure is low in cost, improves market competitiveness, and elastic column can provide buffering effect to external power source, plays the role of protecting equipment.

Description

Technical Field

[0001] This utility model relates to the field of furniture testing technology, specifically to a loading pad for testing the mechanical properties of furniture. Background Technology

[0002] Furniture such as chairs need to be tested before they can be used, so there are various types of furniture durability testing devices on the market.

[0003] For example, Chinese patent document CN204461778U discloses a seat testing device with a backrest, which includes a test block, a sponge pad, a test cylinder, a buffer, a sensor, and a test frame. The test frame has a horizontally mounted slide rail in the middle, and the bottom of the seat to be tested is fixed to the ground below the slide rail by a fixing member. The end of the test block is provided with a slider, which is movably assembled in the slide groove of the slide rail. One end of the test frame is provided with a test cylinder, and the piston rod of the test cylinder is connected to the tail of the test block through the buffer. The front of the test block is arc-shaped, and the arc-shaped surface is covered with a sponge pad. A sensor is provided on the slide rail, and a pressure controller is provided on one side of the test frame.

[0004] Chinese patent document CN205958277U discloses a chair back testing machine, including a testing platform, a cylinder, a vertically arranged vertical frame and a horizontal frame. The vertical frame is equipped with upper and lower positioning components, and the horizontal frame is equipped with front and rear positioning components. The vertical frame is equipped with an upper and lower guide device for moving the upper and lower positioning components. The upper and lower guide device includes two vertically arranged vertical guide rollers, upper and lower guide blocks that pass through and slidably connect to the two vertical guide rollers and are connected to the upper and lower positioning components, and upper and lower fasteners for fixing the upper and lower guide blocks. This provides a chair back testing machine that can prevent the upper and lower positioning components and the front and rear positioning components from detaching from the frame, thereby improving the stability of the test.

[0005] For example, Chinese patent document CN207019890U discloses a seat surface and backrest durability testing machine, including a frame. The frame is equipped with a seat surface testing mechanism and a backrest testing mechanism. The seat surface testing mechanism has a movable crossbeam that reciprocates within the frame. The movable crossbeam is equipped with a seat surface driving cylinder, which drives a square frame through which the backrest testing mechanism reciprocates. A first force sensor is connected to the end of the square frame, and a seat surface impact hammer is connected to the bottom of the first force sensor. The backrest testing mechanism is equipped with a backrest driving cylinder, which drives a backrest impact hammer. A second force sensor is connected between the backrest driving cylinder and the backrest impact hammer. This machine simulates the actual environment of human use of a chair, comprehensively and intelligently testing the durability and flexibility of the seat surface and backrest. It features a high degree of automation, ensuring that the chair meets national quality standards.

[0006] Chinese patent document CN217384747U discloses a chair back combined testing instrument, including a platform; multiple pressure testing mechanisms, each spaced apart on the platform along a first direction. Each pressure testing mechanism includes: a hip testing component, comprising a hip pressing actuator and a hip contouring pressure head disposed at the output end of the hip pressing actuator, the hip pressing actuator driving the hip contouring pressure head to vertically press the hip bearing area of ​​the chair and simultaneously detecting the hip pressing pressure; and a backrest testing component, comprising a backrest pressing actuator and a backrest contouring pressure head disposed at the output end of the backrest pressing actuator, the backrest pressing actuator driving the backrest contouring pressure head to press the backrest bearing area of ​​the chair and simultaneously detecting the backrest pressing pressure. This instrument can effectively simulate the actual load-bearing state of a chair and can meet the stability and reliability testing requirements when a chair simultaneously bears multiple passengers, exhibiting good versatility.

[0007] According to relevant standards, the loading surface needs to move with the surface of the object being tested, maintaining a close fit. For example, during the testing of an office chair back, the backrest will move backward in a roughly arc-shaped motion under pressure, requiring the pad to swing accordingly. Furthermore, relevant standards also require the center of the pad's swing to be as close as possible to the loading surface. Existing technology generally achieves this using universal joints and springs; however, this structure, combining universal joints and springs, needs improvement in its ability to adapt to deformation, and the universal joint, as the bending center, is relatively far from the loading surface. Therefore, existing technology falls short of the standard requirements. Moreover, existing structures are complex and costly, impacting market competitiveness. Summary of the Invention

[0008] In view of the above-mentioned technical problems, the present invention provides a loading pad for testing the mechanical properties of furniture.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A loading pad for testing the mechanical properties of furniture is provided, comprising an elastic column, a pad body, a first support and a second support, wherein the first support and the second support are respectively fixed to the two ends of the elastic column;

[0011] The pad is fixed to the first support and used to support the furniture being tested;

[0012] The second support is equipped with an adapter for connecting to an external power source;

[0013] There is a clearance space between the first and second supports to allow the pad to swing, and the elastic column can bend and deform as the pad swings.

[0014] Specifically, the elastic column is a rubber column or a PU column.

[0015] Specifically, the first support and the elastic column, and the second support and the elastic column are locked together by screws.

[0016] Specifically, the elastic column is a cylinder.

[0017] Specifically, the elastic column has a connecting hole in its center, which can be a through hole or a blind hole.

[0018] Specifically, the corresponding screw position of the pad is recessed to form a relief groove.

[0019] Specifically, the first bracket is bolted to the pad; and / or the second bracket is bolted to the adapter.

[0020] Specifically, the same pad body is provided with two elastic columns arranged in parallel.

[0021] Specifically, both elastic columns are connected to the same first support at one end and to the same second support at the other end.

[0022] Specifically, the second support is bent and includes an arm connecting the ends of two elastic columns, and a bent portion extending between the two elastic columns, with an adapter connected to the bent portion.

[0023] The beneficial effects of this utility model are:

[0024] This utility model discloses a loading pad for testing the mechanical properties of furniture. In use, the pad rests against the surface of the furniture being tested, while an adapter connects to an external power source, causing the entire loading pad to apply pressure to the furniture. When the pressed surface of the furniture shifts, the pad remains in contact with the furniture, thus the pad oscillates around an elastic column as its pivot. Compared to existing technologies, the elastic column has a stronger ability to adapt to deformation, and its oscillation center is closer to the loading surface, thus better meeting standard requirements. Furthermore, its simple structure and low cost enhance its market competitiveness; simultaneously, the elastic column provides a buffering effect against the external power source, protecting the equipment. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the first embodiment of a loading pad for testing the mechanical properties of furniture according to the present invention.

[0027] Figure 2 for Figure 1 The exploded diagram.

[0028] Figure 3 for Figure 1 A sectional view.

[0029] Figure 4 This is a schematic diagram of the second embodiment of a loading pad for testing the mechanical properties of furniture according to the present invention.

[0030] Figure 5 This is a structural schematic diagram of the third embodiment of a loading pad for testing the mechanical properties of furniture according to the present invention.

[0031] Figure 6 This is a structural schematic diagram of the fourth embodiment of a loading pad for testing the mechanical properties of furniture according to the present invention.

[0032] Figure label:

[0033] 1. Elastic column, 11. Connecting hole, 2. Pad, 21. Relief groove, 3. First support, 4. Second support, 5. Adapter, 6. Relief space. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] The first embodiment of the loading pad for testing the mechanical properties of furniture according to this utility model is as follows: Figures 1 to 3 As shown, the system includes an elastic column 1, a pad 2, a first support 3, and a second support 4. The first support 3 and the second support 4 are fixed to both ends of the elastic column 1, respectively. The pad 2 is fixed to the first support 3 and is used to support the furniture being tested. The second support 4 is fixed with an adapter 5 for connecting to an external power source.

[0036] In this embodiment, the end face area of ​​the elastic column 1 is smaller than the bottom face area of ​​the pad 2. A clearance space 6 is left between the first support 3 and the second support 4 to allow the pad 2 to swing, and the elastic column 1 can bend and deform along with the swing of the pad 2. In practice, the elastic column 1 can be a rubber column or a PU column, which has sufficient strength to maintain an upright state in its natural state, and will only produce elastic deformation when subjected to external force.

[0037] In use, pad 2 rests against the surface of the furniture being tested, while adapter 5 connects to an external power source, driving the entire loading pad to apply pressure to the furniture. When the pressed surface of the furniture shifts, pad 2 remains in contact with it, thus oscillating around the elastic column 1. Compared to existing technologies, the elastic column 1 has a stronger ability to adapt to deformation, and its oscillation center is closer to the loading surface, thus better meeting standard requirements. Furthermore, its simple structure and low cost enhance its market competitiveness. Simultaneously, the elastic column 1 provides a buffering effect against the external power source, protecting the equipment.

[0038] In this embodiment, the elastic column 1 is a cylinder. Specifically, a connecting hole 11 is formed through the center of the elastic column 1. The first support 3 and the elastic column 1, and the second support 4 and the elastic column 1 are locked together by screws (not shown in the figure). In practice, the screw can be inserted through the second support 4, through the elastic column 1 and the first support 3, and then locked with a nut. Alternatively, the screw can be screwed into the first support 3 and the second support 4 respectively, which can also lock the column. There is no limitation. In this case, the connecting hole 11 of the elastic column 1 can also be a blind hole.

[0039] Specifically, the corresponding screw position of the pad 2 is recessed to form a relief groove 21, which provides clearance for screw fastening.

[0040] Specifically, the first bracket is locked to the pad 2 by bolts; the second bracket is locked to the adapter 5 by bolts. In practice, the first support 3 and the second support 4 can be fixed to the elastic column 1 first, and then the pad 2 and the adapter 5 can be locked, making assembly convenient.

[0041] For pad 2, its shape and size correspond to the pressure surface of the tested furniture, and can be used as... Figure 1 The circle shown can also be Figure 4 , Figure 5 and Figure 6 Other shapes shown are not limited.

[0042] Figure 1 The pad 2 shown is relatively small, and a single elastic column 1 is sufficient to meet its swinging requirements, allowing it to swing in any direction. However, for larger pads 2, or where there is a need to restrict the swinging direction of pad 2, then... Figures 4 to 6 As shown, two elastic columns 1 are arranged side-by-side on the same pad 2. One end of each elastic column 1 is connected to the same first support 3, and the other end is connected to the same second support 4. This allows the pad 2 to swing in a direction perpendicular to the arrangement of the two elastic columns 1. Specifically, the second support 4 is bent, comprising an arm connecting the ends of the two elastic columns 1, and a bent portion extending between the two elastic columns 1. An adapter 5 is connected to the bent portion, resulting in a more compact and stable structure.

[0043] Of course, in practice, the number of elastic columns 1 can be changed to other values ​​as needed, without restriction.

[0044] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing 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. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. 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, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A loading pad for testing the mechanical properties of furniture, characterized in that: It includes an elastic column (1), a pad (2), a first support (3) and a second support (4), with the first support (3) and the second support (4) respectively fixed to the two ends of the elastic column (1); The pad (2) is fixed to the first support (3) and is used to support the furniture being tested; The second support (4) is fixed with an adapter (5) for connecting to an external power source; There is a clearance space (6) between the first support (3) and the second support (4) for the pad (2) to swing, and the elastic column (1) can bend and deform as the pad (2) swings.

2. The furniture mechanical property detection loading pad according to claim 1, characterized in that: The elastic column (1) is a rubber column or a PU column.

3. The furniture mechanical property detection loading pad according to claim 1, characterized in that: The first support (3) and the elastic column (1) are locked together by screws, and the second support (4) and the elastic column (1) are locked together by screws.

4. The furniture mechanical property detection loading pad according to claim 3, characterized in that: The elastic column (1) is a cylinder.

5. The furniture mechanical property detection loading pad according to claim 4, characterized in that: The elastic column (1) has a connecting hole (11) at its center. The connecting hole (11) can be a through hole or a blind hole.

6. The furniture mechanical property detection loading pad according to claim 3, characterized in that: The corresponding screw position of the pad (2) is recessed to form a relief groove (21).

7. The furniture mechanical property detection loading pad according to claim 1, characterized in that: The first bracket is bolted to the pad (2); and / or the second bracket is bolted to the adapter (5).

8. The furniture mechanical property detection loading pad according to claim 1, characterized in that: The same pad (2) is provided with two elastic columns (1) arranged in parallel.

9. The furniture mechanical property detection loading pad according to claim 8, characterized in that: Two elastic columns (1) are connected at one end to the same first support (3) and at the other end to the same second support (4).

10. The furniture mechanical property detection loading pad according to claim 9, characterized in that: The second support (4) is bent and includes an arm that connects the ends of the two elastic columns (1) and a bent portion that extends between the two elastic columns (1), with an adapter (5) connected to the bent portion.

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