Furniture load bearing test apparatus

Abstract

This utility model relates to a furniture load-bearing capacity testing device, including a base, pressure rods, and pressure sensors. Columns are installed at the four corners of the upper surface of the base, and a top plate is mounted on the top of the four columns. A hydraulic cylinder is installed on the top of the top plate, and a pressure sensor is installed at the end of the extension / retraction end of the hydraulic cylinder. The pressure sensor is mounted on a lifting plate. Multiple sets of arc-shaped plates are provided on the lower surface of the lifting plate, and a connecting mechanism is provided between the pressure rods and the arc-shaped plates. Multiple laser lights are provided on the lower surface of the top plate, and a first through hole is provided on the lifting plate corresponding to each laser light, with the first through hole located at the center of the arc-shaped plate. A second through hole is provided at the center of the pressure rod. Through the connecting mechanism, the number and position of the pressure rods can be arbitrarily adjusted, thereby allowing adjustment of the number and position of pressure points according to the size and type of furniture, accurately reflecting the actual load-bearing capacity of the furniture and providing more comprehensive test results.

Description

Technical Field

[0001] This utility model relates to the field of furniture testing technology, specifically a furniture load-bearing testing device. Background Technology

[0002] In today's booming furniture industry, the variety of furniture is increasingly diverse, ranging from traditional tables, chairs, and beds to modern functional modular furniture, widely used in various settings such as homes, offices, and commercial spaces. As indispensable items in people's daily lives and work, the quality and safety of furniture are directly related to the life and property safety of users, and load-bearing capacity is one of the key indicators for measuring the quality and safety of furniture.

[0003] Traditional furniture load-bearing testing devices often use a single-point pressure method for testing. This is not convenient for adjusting the number and position of pressure points according to the size and type of furniture. The test results are inconvenient and cannot accurately reflect the actual load-bearing capacity of the furniture, resulting in a rather one-sided test result. Utility Model Content

[0004] The purpose of this invention is to provide a furniture load-bearing testing device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A furniture load-bearing capacity testing device includes a base, a pressure rod, and a pressure sensor. Columns are installed at the four corners of the upper surface of the base. A top plate is mounted on the top of the four columns. A hydraulic cylinder is installed on the top of the top plate, and a pressure sensor is installed at the end of the extension / retraction of the hydraulic cylinder. The pressure sensor is mounted on a lifting plate. Multiple arc-shaped plates are provided on the lower surface of the lifting plate, and a connecting mechanism is provided between the pressure rod and the arc-shaped plates. Multiple laser lights are provided on the lower surface of the top plate. A first through hole is provided on the lifting plate corresponding to each laser light, and the first through hole is located at the center of the arc-shaped plate. A second through hole is provided at the center of the pressure rod. A blocking mechanism is provided inside the first through hole, and the blocking mechanism is in a pressing fit with the pressure rod. When the pressure rod is installed inside the arc-shaped plate, the first and second through holes are connected.

[0007] Therefore, by setting up the connecting mechanism, the number and position of the pressure rods can be adjusted arbitrarily. This allows for the adjustment of the number and position of the pressure points according to the size and type of furniture, accurately reflecting the actual load-bearing capacity of the furniture and providing more comprehensive test results.

[0008] Furthermore, the connecting mechanism includes a connecting seat mounted on the top of the pressure rod, with locking blocks installed on both sides of the outer surface of the connecting seat. Each set of arc plates includes two symmetrically arranged arc plates, with a gap between the two arc plates allowing the locking blocks to pass through, and a locking groove provided at one end of each of the two arc plates.

[0009] Furthermore, the blocking mechanism includes four wedge-shaped sliders slidably mounted on the lower surface of the lifting plate, and the four wedge-shaped sliders are arranged in a circular array. A stop bar is mounted on the upper side of each wedge-shaped slider. When the four stop bars are combined, they form a cylindrical structure and are positioned within the first through hole. An O-ring is fitted onto the outer surface of each of the four stop bars. A groove is provided on the top of the connecting seat, and a conical top block is installed inside the groove.

[0010] Furthermore, the outer surface of the baffle is provided with a recessed portion, and the O-ring is disposed within the recessed portion.

[0011] Furthermore, the locking block and the locking slot are interference fit, making it less likely to loosen after the locking block is screwed in.

[0012] Furthermore, the outer surface of the pressure bar is provided with an anti-slip sleeve, and the outer surface of the anti-slip sleeve is provided with anti-slip stripes.

[0013] Furthermore, linear bearings are installed at the four corners of the lifting platform, and the four linear bearings are slidably mounted on the four columns respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] 1. This utility model, through the setting of the connecting mechanism, allows for arbitrary adjustment of the number and position of the pressure rods, thereby enabling the adjustment of the number and position of the pressure points according to the size and type of furniture, accurately reflecting the actual load-bearing capacity of the furniture, and providing more comprehensive test results.

[0016] 2. By setting up a shielding mechanism, after the pressure rod is fixed in the arc plate by the connecting mechanism, the laser emitted by the upper laser lamp can pass through the first and second through holes and be projected onto the surface of the furniture. This allows for precise adjustment of the pressure point position, improves the portability of the test, and further enhances the comprehensiveness of the test results. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the lifting plate in this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the top plate in this utility model;

[0021] Figure 5 for Figure 1 Enlarged diagram of A in the middle;

[0022] Figure 6 for Figure 3 Enlarged diagram of B in the middle;

[0023] Figure 7 This is a schematic diagram of the pressure bar structure in this utility model.

[0024] In the diagram: 1. Base; 101. Column; 102. Top plate; 103. Hydraulic cylinder; 104. Lifting plate; 105. Arc plate; 106. Pressure rod; 107. Laser light; 108. First through hole; 109. Second through hole; 110. Pressure sensor; 2. Connecting mechanism; 201. Connecting seat; 202. Locking block; 203. Locking groove; 3. Blocking mechanism; 301. Wedge slider; 302. Stop bar; 303. O-ring; 304. Groove; 305. Conical top block; 4. Anti-slip sleeve; 5. Linear bearing. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7 This utility model provides a furniture load-bearing capacity testing device, including a base 1, a pressure rod 106, and a pressure sensor 110. Columns 101 are installed at the four corners of the upper surface of the base 1. A top plate 102 is installed on the top of the four columns 101. A hydraulic cylinder 103 is installed on the top of the top plate 102. A pressure sensor 110 is installed at the end of the extension / retraction end of the hydraulic cylinder 103. The pressure sensor 110 is mounted on a lifting plate 104. Multiple sets of arc-shaped plates 105 are provided on the lower surface of the lifting plate 104. A connecting mechanism 2 is provided between the pressure rod 106 and the arc-shaped plates 105. Multiple laser lights 107 are provided on the lower surface of the top plate 102. A first through hole 108 is provided on the lifting plate 104 corresponding to each laser light 107, and the first through hole 108 is located at the center of the arc-shaped plate 105. A second through hole 109 is provided at the center of the pressure rod 106. The first through hole 108 is provided with a blocking mechanism 3. The blocking mechanism 3 is pressed and engaged with the pressure rod 106. When the pressure rod 106 is installed in the arc plate 105, the first through hole 108 and the second through hole 109 are connected.

[0027] In use, the furniture to be tested is first placed on the base 1. Then, according to the specifications and size of the furniture, an appropriate number of pressure rods 106 are installed in the arc plate 105 at the appropriate position through the connecting mechanism 2. This allows for adjustment of the number and position of the pressure rods 106. Subsequently, the hydraulic cylinder 103 drives the lifting plate 104 to descend. The lifting plate 104 drives multiple pressure rods 106 to press on different positions on the furniture simultaneously. The pressure sensor 110 detects the applied pressure and displays the pressure value in real time through the external display panel. The tester observes and records the pressure value when the furniture deforms and breaks, thereby determining the load-bearing capacity of the furniture.

[0028] Furthermore, through the setup of the laser lamp 107 and the shielding mechanism 3, when the pressure rod 106 is fixed inside the arc plate 105 via the connecting mechanism 2, the shielding mechanism 3 can be driven to unfold, allowing the laser emitted by the upper laser lamp 107 to pass through the first through hole 108 and the second through hole 109 and be projected onto the surface of the furniture. This allows for precise adjustment of the pressure point position, improves the portability of the test, and further enhances the comprehensiveness of the test results.

[0029] It is worth noting that, due to the extension and retraction of the hydraulic cylinder 103, no laser light 107 is installed in the middle position of the bottom of the top plate 102. The pressure point of the furniture corresponding to the middle pressure rod 106 can be calculated based on the projection points of the surrounding laser lights 107.

[0030] Preferably, the connecting mechanism 2 includes a connecting seat 201 mounted on the top of the pressure rod 106, and locking blocks 202 are mounted on both sides of the outer surface of the connecting seat 201. Each set of arc plates 105 includes two symmetrically arranged arc plates 105, with a gap between the two arc plates 105 that allows the locking blocks 202 to pass through, and a locking groove 203 is provided at one end of each of the two arc plates 105.

[0031] When installing the pressure rod 106, hold the pressure rod 106 and insert its upper connecting seat 201 into the two arc-shaped plates 105. The locking blocks 202 on both sides can slide in through the gap between the two arc-shaped plates 105. After the connecting seat 201 abuts against the lifting plate 104, rotate the pressure rod 106 so that the locking blocks 202 can be screwed into the slots 203. At this time, the upper and lower sides of the locking blocks 202 abut against the inner walls of the lifting plate 104 and the slots 203 respectively, thus completing the quick installation of the pressure rod 106. When pressure is applied to the furniture, the pressure rod 106 abuts against the lifting plate 104, and the arc-shaped plates 105 are not subjected to force, which can ensure the structural integrity of the arc-shaped plates 105.

[0032] Preferably, the blocking mechanism 3 includes four wedge-shaped sliders 301 slidably mounted on the lower surface of the lifting plate 104, and the four wedge-shaped sliders 301 are arranged in a circular array. A stop bar 302 is installed on the upper side of the wedge-shaped sliders 301. When the four stop bars 302 are combined, they form a cylindrical structure and are disposed in the first through hole 108. An O-ring 303 is fitted on the outer surface of the four stop bars 302. A groove 304 is provided on the top of the connecting seat 201, and a conical top block 305 is installed inside the groove 304.

[0033] The four baffles 302 are brought together by the elastic action of the O-ring 303. At this time, the four baffles 302 are coaxial with the first through hole 108, thus blocking the laser emitted by the laser lamp 107. When the pressure rod 106 is installed at the bottom of the lifting plate 104, the conical top block 305 is inserted into the four wedge-shaped sliders 301. Through the pressure of the inclined surface, the four wedge-shaped sliders 301 can be driven to move the baffles 302 away from the axis of the first through hole 108. At this time, the first through hole 108 and the second through hole 109 are connected, and the laser emitted by the laser lamp 107 can pass through the first through hole 108 and the second through hole 109 and be projected onto the furniture surface, achieving the purpose of precise adjustment of the pressure point.

[0034] Preferably, the outer surface of the baffle 302 is provided with a recess, and the O-ring 303 is disposed in the recess.

[0035] The recessed portion limits the position of the O-ring 303, making its installation position more stable and preventing it from sliding freely on the retaining strip 302.

[0036] Preferably, the locking block 202 and the locking slot 203 are interference fit, so that the locking block 202 is not easy to loosen after being screwed in.

[0037] Ensure the stability of the pressure bar 106 after installation to prevent it from falling and damaging the furniture below.

[0038] Preferably, the outer surface of the pressure rod 106 is provided with an anti-slip sleeve 4, and the outer surface of the anti-slip sleeve 4 is provided with anti-slip stripes.

[0039] When the hand-held pressure bar 106 is installed, the hand-held part is on the anti-slip sleeve 4, which can play an anti-slip role and prevent the hand from slipping.

[0040] Preferably, linear bearings 5 ​​are installed at the four corners of the lifting plate 104, and the four linear bearings 5 ​​are slidably installed on the four columns 101 respectively.

[0041] The four uprights 101 not only provide support, but also limit and guide the lifting plate 104, ensuring that the lifting plate 104 can rise and fall vertically, thereby driving all the pressure rods 106 below to apply pressure evenly to the furniture and improve the accuracy of the test results.

[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A furniture load-bearing testing device, comprising a base (1), a pressure rod (106), and a pressure sensor (110), characterized in that: A column (101) is installed at each of the four corners of the upper surface of the base (1). A top plate (102) is installed on the top of the four columns (101). A hydraulic cylinder (103) is installed on the top of the top plate (102). A pressure sensor (110) is installed at the end of the extension end of the hydraulic cylinder (103). The pressure sensor (110) is installed on the lifting plate (104). A plurality of arc plates (105) are provided on the lower surface of the lifting plate (104). A connecting mechanism (2) is provided between the pressure rod (106) and the arc plate (105). The lower surface of the top plate (102) is provided with a plurality of laser lights (107), and the lifting plate (104) is provided with a first through hole (108) corresponding to the laser lights (107), and the first through hole (108) is located at the center of the arc plate (105), and the center of the pressure rod (106) is provided with a second through hole (109). The first through hole (108) is provided with a shielding mechanism (3), which is pressed and engaged with the pressure rod (106). When the pressure rod (106) is installed in the arc plate (105), the first through hole (108) and the second through hole (109) are connected.

2. The furniture load-bearing capacity testing device according to claim 1, characterized in that: The connecting mechanism (2) includes a connecting seat (201) installed on the top of the pressure rod (106), and a locking block (202) is installed on both sides of the outer surface of the connecting seat (201); Each set of the arc-shaped plates (105) includes two symmetrically arranged arc-shaped plates (105), and a gap is provided between the two arc-shaped plates (105) to allow the card block (202) to pass through. Each of the two arc-shaped plates (105) has a card slot (203) at one end.

3. The furniture load-bearing capacity testing device according to claim 2, characterized in that: The shielding mechanism (3) includes four wedge-shaped sliders (301) slidably mounted on the lower surface of the lifting plate (104), and the four wedge-shaped sliders (301) are arranged in a circular array. A baffle (302) is installed on the upper side of the wedge-shaped slider (301). When the four baffles (302) are combined together, they form a cylindrical structure and are set in the first through hole (108). An O-ring (303) is sleeved on the outer surface of the four baffles (302). The top of the connecting seat (201) is provided with a groove (304), and a conical top block (305) is installed inside the groove (304).

4. The furniture load-bearing capacity testing device according to claim 3, characterized in that: The outer surface of the baffle (302) is provided with a recessed portion, and the O-ring (303) is disposed in the recessed portion.

5. The furniture load-bearing capacity testing device according to claim 2, characterized in that: The locking block (202) and the locking slot (203) are interference fit, which makes it difficult for the locking block (202) to loosen after it is screwed in.

6. The furniture load-bearing capacity testing device according to claim 1, characterized in that: The outer surface of the pressure rod (106) is provided with an anti-slip sleeve (4), and the outer surface of the anti-slip sleeve (4) is provided with anti-slip stripes.

7. The furniture load-bearing capacity testing device according to claim 1, characterized in that: Linear bearings (5) are installed at the four corners of the lifting plate (104), and the four linear bearings (5) are slidably installed on the four columns (101).

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