A mattress spring pack pull test device

Abstract

The utility model discloses a mattress spring package tension test device relates to mattress spring test technical field, including base, the base upside is provided with two servo guide rails, the servo guide rail upper end is installed with servo motor, is provided with the crosspiece between two servo guide rails, the crosspiece downside is connected with the tension sensor, the tension sensor downside is connected with the fixed block, the base upside center and the fixed block downside center all are installed with the threaded rod. The utility model discloses the threaded rod, threaded sleeve, hexagon nut and press bar that are set, make the spring when fixing, the spring is set in the outside of threaded rod, first through the hexagon nut and move threaded sleeve along the threaded rod, then will three press bars be screwed on threaded sleeve, and the press bar can be pressed on the annular spring body of spring end, and then can be fixed to the spring of different inside diameter and be pressed, need not change different jig, reduce the input of test cost.

Description

Technical Field

[0001] This utility model relates to the field of mattress spring testing technology, specifically a mattress spring pack tensile testing device. Background Technology

[0002] Spring mattresses, commonly known as "Simmons" in China, are a type of modern, high-performance mattress whose core is composed of springs. These mattresses offer advantages such as good elasticity, excellent support, high breathability, and durability. The three-section, independently controlled springs, designed strictly according to ergonomic principles, can flexibly adapt to the curves and weight of the human body. Spring mattresses evenly support every part of the body, keeping the spine naturally straight, allowing muscles to fully relax, and reducing the number of times you toss and turn during sleep.

[0003] Individually pocketed springs are made by encasing springs in non-woven or cotton fabric and then sealing them together using adhesive or ultrasonic bonding. The more coils a spring has, the taller and softer it is; 6 or 7 coils are the most common. The number of springs depends on the inner diameter of the spring; a smaller inner diameter requires more springs, resulting in a firmer mattress. Unlike connected springs, individual pocketed springs are not linked together by wire loops. This allows for uninterrupted sleep even when one person moves, ensuring even pressure distribution across the body and preventing aches and pains from unsupported areas – a feature considered ergonomically sound. While more comfortable than connected springs, well-made individually pocketed springs offer comparable support.

[0004] The springs inside the independent pocket spring pack need to be tested and inspected using specialized testing equipment. The tension and compression of the springs need to be tested to verify their performance and ensure their quality.

[0005] When using existing spring pack tensile testing devices, special fixtures are required to clamp and fix the springs at both ends to the testing device. When encountering springs with different inner diameters, different fixtures need to be replaced, increasing the cost of testing. At the same time, the existing testing devices lack an effective protective structure on the outside of the springs. When the springs are stretched and broken, they will break outwards, which can easily injure the test personnel. Utility Model Content

[0006] The technical problem this invention aims to solve is to overcome existing defects and provide a mattress spring pack tensile testing device. Through the arrangement of a threaded rod, threaded sleeve, hexagonal nut, and pressure rods, the spring is fitted onto the outside of the threaded rod during fixing. First, the threaded sleeve is moved along the threaded rod using the hexagonal nut. Then, the three pressure rods are tightened onto the threaded sleeve. The pressure rods can press against the annular spring body at the spring end, thereby enabling the compression and fixing of springs with different inner diameters without the need to change different fixtures, reducing testing costs and effectively solving the problems in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mattress spring pack tensile testing device, comprising a base, two servo guide rails on the upper side of the base, a servo motor mounted on the upper end of the servo guide rails, a crossbar between the two servo guide rails, a tension sensor connected to the lower side of the crossbar, a fixing block connected to the lower side of the tension sensor, threaded rods mounted at the center of the upper side of the base and the center of the lower side of the fixing block, threaded rods passing through threaded sleeves, a hexagonal nut connected to one end of the threaded sleeve, three pressure rods threadedly connected to the outer ring side of the threaded sleeve, clamping bolts mounted on both sides of the threaded rods on the base and the crossbar, a transparent protective cover on the lower side of the crossbar, and clamping plates symmetrically arranged at the upper and lower ends of the transparent protective cover, with clamping grooves formed on the clamping plates.

[0008] Furthermore, a top rod is fixedly installed between the upper ends of the two servo guide rails, a laser rangefinder is installed at the center of the top rod, and a support frame is fixedly installed on one side of one of the servo guide rails.

[0009] Furthermore, a display screen is fixedly installed on the upper end of the support frame, and the crossbar is connected to the servo guide rail via a lead screw and nut.

[0010] Furthermore, the upper side of the tension sensor is connected to the lower side of the crossbar by a thread, and the transparent protective cover is connected to the base by the clamping bolt and the clamping plate.

[0011] Furthermore, the threaded sleeve and the threaded rod are connected by threads, the hexagonal nut is welded to the threaded sleeve, and the pressure rods are arranged at equal intervals in the circumferential direction on the outer ring side of the threaded sleeve.

[0012] Furthermore, the output end of the servo motor is connected to the lead screw key inside the servo guide rail, the lower end of the servo guide rail is connected to the base by bolts, and the illumination area of ​​the laser rangefinder is aligned with the center of the upper side of the crossbar.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a threaded rod, a threaded sleeve, a hexagonal nut, and a pressure rod, allows the spring to be sleeved on the outside of the threaded rod when fixed. First, the threaded sleeve is moved along the threaded rod by the hexagonal nut, and then the three pressure rods are tightened on the threaded sleeve. The pressure rods can press on the annular spring body at the end of the spring, thereby enabling the compression and fixing of springs with different inner diameters without the need to change different fixtures, thus reducing the input of test costs.

[0014] 2. This utility model uses a transparent protective cover, a clamping plate, a clamping groove, and clamping bolts to press the two ends of the transparent protective cover onto the clamping plate, thereby connecting and fixing the two ends of the transparent protective cover to the crossbar and the base. The test spring is set inside the transparent protective cover. When the test spring breaks during the tensile test, the transparent protective cover can block the broken test spring, preventing the broken spring from flying and injuring the test personnel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A; Figure 3 This utility model Figure 1 A schematic diagram of the main structure of the central fixed block; Figure 4 This utility model Figure 1 Enlarged structural diagram of the central clamping bolt; Figure 5 This utility model Figure 1 An enlarged structural diagram of the transparent protective cover.

[0016] In the diagram: 1. Base; 2. Servo guide rail; 3. Crossbar; 4. Fixing block; 5. Top rod; 6. Laser rangefinder; 7. Servo motor; 8. Display screen; 9. Support frame; 10. Threaded rod; 11. Threaded sleeve; 12. Hex nut; 13. Pressure rod; 14. Tension sensor; 15. Transparent protective cover; 16. Clamping plate; 17. Clamping slot; 18. Clamping bolt. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5This embodiment provides a technical solution: a mattress spring pack tensile testing device, including a base 1, two servo guide rails 2 are arranged on the upper side of the base 1, a servo motor 7 is installed on the upper end of the servo guide rails 2, a crossbar 3 is arranged between the two servo guide rails 2, a tension sensor 14 is connected to the lower side of the crossbar 3, a fixing block 4 is connected to the lower side of the tension sensor 14, a threaded rod 10 is installed at the center of the upper side of the base 1 and the center of the lower side of the fixing block 4, a threaded sleeve 11 is inserted through the threaded rod 10, a hexagonal nut 12 is connected to one end of the threaded sleeve 11, three pressure rods 13 are threadedly connected to the outer ring side of the threaded sleeve 11, clamping bolts 18 are installed on both sides of the threaded rod 10 on the base 1 and the crossbar 3, a transparent protective cover 15 is arranged on the lower side of the crossbar 3, and a clamping plate 16 is symmetrically arranged at the upper and lower ends of the transparent protective cover 15, with a clamping groove 17 opened on the clamping plate 16.

[0019] like Figure 1-5 As shown, during the spring test, the two ends of the spring are clamped and fixed by the pressure rod 13 on the threaded sleeve 11. The transparent protective cover 15 is inserted through the outside of the test spring, and the two ends of the transparent protective cover 15 are fixed to the base 1 and the crossbar 3 respectively by the clamping plate 16, the clamping groove 17 and the clamping bolt 18. The servo motor 7 is adjusted by the display screen 8. The servo motor 7 drives the lead screw in the servo guide rail 2 to rotate, so that the crossbar 3 moves up and down along the servo guide rail 2, thereby pulling the spring under the fixed block 4. The tension sensor 14 can measure the tension in real time. When the spring breaks, the transparent protective cover 15 can prevent the broken spring from flying, thereby avoiding injury to the test personnel. The laser rangefinder 6 can measure the distance between the crossbar 3 and the top rod 5 in real time.

[0020] A top rod 5 is fixedly installed between the upper ends of the two servo guide rails 2. A laser rangefinder 6 is installed in the center of the top rod 5. A support frame 9 is fixedly installed on one side of one servo guide rail 2. The top rod 5 can connect and fix the top of the servo guide rail 2, and the support frame 9 can support and fix the display screen 8.

[0021] A display screen 8 is fixedly installed on the upper end of the support frame 9. The crossbar 3 is connected to the servo guide rail 2 through a screw nut. The display screen 8 can display the adjustment data and test data of the test equipment. The servo guide rail 2 ensures the stability of the crossbar 3 moving up and down.

[0022] The upper side of the tension sensor 14 is connected to the lower side of the crossbar 3 by a thread. The transparent protective cover 15 is connected to the base 1 by a clamping bolt 18 and a clamping plate 16. The transparent protective cover 15 can protect the experimental spring and prevent the broken spring from splashing and injuring the test personnel.

[0023] The threaded sleeve 11 is connected to the threaded rod 10 by threads, the hexagonal nut 12 is welded to the threaded sleeve 11, and the pressure rod 13 is set at equal intervals in the circumferential direction on the outer ring side of the threaded sleeve 11.

[0024] The output end of the servo motor 7 is connected to the lead screw key inside the servo guide rail 2. The lower end of the servo guide rail 2 is connected to the base 1 by bolts. The laser rangefinder 6 irradiates the center of the upper side of the crossbar 3.

[0025] The working principle of the mattress spring pack tensile testing device provided by this utility model is as follows: Figures 1-5 As shown, during the spring test, the two ends of the spring are clamped and fixed by the pressure rod 13 on the threaded sleeve 11. The transparent protective cover 15 is inserted through the outside of the test spring, and the two ends of the transparent protective cover 15 are fixed to the base 1 and the crossbar 3 respectively by the clamping plate 16, the clamping groove 17 and the clamping bolt 18. The servo motor 7 is adjusted by the display screen 8. The servo motor 7 drives the lead screw in the servo guide rail 2 to rotate, so that the crossbar 3 moves up and down along the servo guide rail 2, thereby pulling the spring under the fixed block 4. The tension sensor 14 can measure the tension in real time. When the spring breaks, the transparent protective cover 15 can prevent the broken spring from flying, thereby avoiding injury to the test personnel. The laser rangefinder 6 can measure the distance between the crossbar 3 and the top rod 5 in real time.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mattress spring pack tensile testing device, comprising a base (1), characterized in that: Two servo guide rails (2) are provided on the upper side of the base (1). A servo motor (7) is installed on the upper end of the servo guide rail (2). A crossbar (3) is provided between the two servo guide rails (2). A tension sensor (14) is connected to the lower side of the crossbar (3). A fixing block (4) is connected to the lower side of the tension sensor (14). Threaded rods (10) are installed at the center of the upper side of the base (1) and the center of the lower side of the fixing block (4). A threaded sleeve passes through the threaded rod (10). (11) One end of the threaded sleeve (11) is connected to a hexagonal nut (12). The outer ring of the threaded sleeve (11) is connected to three pressure rods (13) by threads. The threaded rods (10) on the base (1) and the crossbar (3) are fitted with clamping bolts (18). A transparent protective cover (15) is provided on the lower side of the crossbar (3). The upper and lower ends of the transparent protective cover (15) are symmetrically provided with clamping plates (16). The clamping plates (16) are provided with clamping grooves (17).

2. The mattress spring pack tensile testing device according to claim 1, characterized in that: A top rod (5) is fixedly installed between the upper ends of the two servo guide rails (2), and a laser rangefinder (6) is installed at the center of the top rod (5). A support frame (9) is fixedly installed on one side of one of the servo guide rails (2).

3. The mattress spring pack tensile testing device according to claim 2, characterized in that: The support frame (9) is fixedly mounted with a display screen (8), and the crossbar (3) is connected to the servo guide rail (2) by a screw nut.

4. The mattress spring pack tensile testing device according to claim 1, characterized in that: The upper side of the tension sensor (14) is connected to the lower side of the crossbar (3) by a thread, and the transparent protective cover (15) is connected to the base (1) by the clamping bolt (18) and the clamping plate (16).

5. The mattress spring pack tensile testing device according to claim 1, characterized in that: The threaded sleeve (11) is connected to the threaded rod (10) by threads, the hexagonal nut (12) is welded to the threaded sleeve (11), and the pressure rod (13) is set at equal intervals in the circumferential direction on the outer ring side of the threaded sleeve (11).

6. The mattress spring pack tensile testing device according to claim 2, characterized in that: The output end of the servo motor (7) is connected to the lead screw key in the servo guide rail (2), the lower end of the servo guide rail (2) is connected to the base (1) by bolts, and the irradiation area of ​​the laser rangefinder (6) is aligned with the center of the upper side of the crossbar (3).

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