Pressure testing platform for strength of tent supporting structure

Abstract

The utility model relates to the technical field of pressure test platforms, and discloses a tent support structure strength pressure test platform, which comprises a test box, a carriage and a support rod, an installation column is fixedly installed on the inner bottom of the test box, the top of the installation column is provided with a column groove, the bottom end of the support rod is inserted into the column groove, and the support rod is fixed on the carriage. A semi-hoop frame is arranged on one side of the installation column, the inner side of the semi-hoop frame is attached to the outer wall of the supporting rod and fixedly connected to one side of the column groove of the installation column through a bolt, and when the elastic test is carried out, the output end of the transmission motor drives the rolling wheel to rotate on the sliding frame, so that the pull rope binding the top end of the supporting rod is rolled up. The top end of the supporting rod is bent due to the influence of tensile force, a sensor installed on the surface of the supporting rod detects the bent supporting rod, and whether the material meets the design requirement or not is verified by applying periodic loads (such as stretching, compressing and bending) and measuring the stress-strain relation of the supporting rod within the elastic deformation range.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing platform technology, and in particular to a pressure testing platform for the strength of a tent support structure. Background Technology

[0002] Tents are an important emergency facility, playing a crucial role in scenarios such as epidemic prevention and control and temporary shelter. The pressure testing platform for the strength of the tent support structure is a professional device used to simulate various pressures that tents may withstand in actual use (such as wind force, snow load, and human compression) to evaluate their structural strength, stability, and reliability. By applying pressures of different directions, magnitudes, and frequencies through the testing platform (such as vertical static pressure to simulate the weight of snow and dynamic alternating pressure to simulate strong wind vibration), the actual load-bearing capacity of the tent support structure (such as support tubes, connectors, and rope fixing points) under theoretical design is verified.

[0003] An existing strength testing device for tent poles (publication number: CN218674565U) has at least the following drawbacks: the device facilitates the stamping test of tent poles, but the tent poles still need to undergo elasticity testing to confirm the elastic limit of the tent pole material and ensure its basic reliability. In addition, the contact surface between the stamping head and the support pole of the device is relatively flat, which can easily cause the impact force to slide or diffuse in the non-stamping direction at the moment of contact, affecting the stamping test of the tent poles. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure testing platform for the strength of a tent support structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure testing platform for the strength of a tent support structure includes a test box, a slide, and a support rod. A mounting column is fixedly installed on the bottom of the test box. A groove is formed at the top of the mounting column, and the bottom end of the support rod is inserted into the groove. A semi-hoop is provided on one side of the mounting column, and the inner side of the semi-hoop is attached to the outer wall of the support rod and fixedly connected to the groove on one side of the mounting column with bolts. A through groove is formed in the bottom of the test box, and the slide is located inside the groove. The slide includes a reel, a pull rope, and a drive motor. The drive motor is fixedly connected inside the slide. Both ends of the reel are rotatably connected to the inner wall of the groove in the slide. The output end of the drive motor is fixedly connected to a shaft at one end of the reel. The pull rope is wound in the middle of the reel, and one end of the pull rope is tied to a rope hole at the top of the support rod.

[0007] As a further embodiment of this utility model, a slide rod is fixedly connected inside the slide groove, the slide rod is connected through to the bottom end of the slide frame, a lead screw is provided on one side of the slide rod, the two ends of the lead screw are rotatably connected through to the inner wall of the slide groove, a drive motor is fixedly installed inside the bottom end of the test box, and the output end of the drive motor is fixedly connected to one end of the lead screw.

[0008] As a further embodiment of this utility model, the slide is threadedly slidably connected to the lead screw, the slide groove is located on one side of the mounting column, and a driving hydraulic cylinder is provided on the other side of the mounting column. The driving hydraulic cylinder is fixedly connected to the bottom of the test chamber, and a positioning plate is fixedly connected to the telescopic end of the driving hydraulic cylinder. The driving hydraulic cylinder is located on one side of the support rod.

[0009] As a further embodiment of this utility model, the top stud of the support rod is threaded through to the positioning plate, and a stamping device is provided on the side of the driving hydraulic cylinder away from the slide groove. The stamping device includes a locking frame, a hydraulic actuator, and a push frame. Several locking frames are respectively fixedly connected to the inner wall of the test chamber and the outer wall of the push frame, and the hydraulic actuator is located on the back side of the push frame.

[0010] As a further embodiment of this utility model, both ends of the hydraulic actuator are rotatably mounted in the middle of the clamping frame by plug bolts. An elastic rubber pad is fixedly connected in the groove on the side of the push frame away from the clamping frame. The elastic rubber pad is located on one side of the outer wall of the support rod. A tension frame is connected through the outside of several of the hydraulic actuators. A cylinder is fixedly connected to the top of the test box.

[0011] As a further embodiment of this utility model, the telescopic end of the cylinder is rotatably connected to one side of the tension frame by a plug bolt. A storage box is fixedly connected to the bottom of the test box. The storage box is located at the bottom of the stamping device. Slide rails are provided on both the top and bottom sides of the opening of the test box. A sliding door is provided on one side of the storage box. The top and bottom sides of the sliding door are slidably connected to the slide rails. A control panel is provided on one side of the sliding door. The control panel is fixedly installed on the outside of the test box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The staff places the support rod in the groove at the top of the mounting column and fixes it to the column using a semi-hoop. The drive motor is started via the control panel, and its output drives the reel to rotate, releasing the pull rope. One end of the pull rope is then fixed to the top of the support rod. Simultaneously, multiple sensors are taken from the storage box and installed on the surface of the support rod. During the elasticity test, the drive motor's output drives the reel to rotate on the slide, causing the pull rope binding the top of the support rod to wind up. The tension at the top of the support rod causes it to bend, and the sensors installed on its surface detect the bending. By applying periodic loads (such as tension, compression, and bending), the stress-strain relationship of the support rod within its elastic deformation range is measured to verify whether the material meets the design requirements. This prevents the use of materials with insufficient elasticity, which could cause the support rod to prematurely enter plastic deformation during normal use, leading to structural failure.

[0014] 2. The operator rotates the support rod, causing the stud at the top of the support rod to rotate and connect to the positioning plate. Simultaneously, a nut is used to further secure the stud. The hydraulic cylinder is then activated via the control panel. The extension end of the hydraulic cylinder lowers the positioning plate and the support rod, allowing the bottom end of the support rod to insert into the groove at the top of the mounting column. The bottom end of the support rod is then secured by a half-hoop. Simultaneously, the extension end of the hydraulic cylinder rises and pushes the positioning plate, extending the support rod (existing tent support rods have a telescopic function). The hydraulic actuator is then activated. The extension end of the hydraulic actuator pushes the pusher against the outside of the support rod. The pusher continues to advance, causing the elastic pad on one side of the pusher to adhere to the outer wall of the support rod. The elastic deformation capability of the pad tightly conforms to the irregular surface of the support rod (such as curved surfaces or textured surfaces), eliminating the small gaps between the metal pusher and the support rod, and preventing the impact force caused by the gap from sliding or spreading in the non-impact direction at the moment of contact. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a pressure testing platform for the strength of a tent support structure proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the test chamber of a pressure testing platform for the strength of a tent support structure proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the slide of a pressure testing platform for the strength of a tent support structure proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the driving hydraulic cylinder of a pressure testing platform for the strength of a tent support structure proposed in this utility model.

[0019] Figure 5This is a schematic diagram of the stamping device for a pressure testing platform for the strength of a tent support structure proposed in this utility model.

[0020] In the diagram: 1. Test box; 101. Control panel; 102. Slide rail; 103. Sliding door; 2. Slide groove; 201. Lead screw; 202. Slide rod; 203. Drive motor; 3. Carriage; 301. Roller; 302. Pull rope; 303. Transmission motor; 4. Support rod; 5. Mounting column; 501. Half hoop; 6. Drive hydraulic cylinder; 601. Positioning plate; 7. Stamping device; 701. Clamping frame; 702. Hydraulic actuator; 703. Push frame; 704. Elastic pad; 8. Cylinder; 801. Tensioning frame; 9. Storage box. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figures 1-5A pressure testing platform for the strength of a tent support structure includes a test box 1, a slide 3, and a support rod 4. A mounting column 5 is fixedly installed on the bottom of the test box 1. A column groove is opened at the top of the mounting column 5. The bottom end of the support rod 4 is inserted into the column groove. A semi-hoop 501 is provided on one side of the mounting column 5. The inner side of the semi-hoop 501 is attached to the outer wall of the support rod 4 and is fixedly connected to the column groove of the mounting column 5 by bolts. A slide groove 2 is opened through the bottom of the test box 1. The slide 3 is located inside the slide groove 2. The slide 3 includes a roller 301, a pull rope 302, and a drive motor 303. The drive motor 303 is fixedly connected inside the slide 3. Both ends of the roller 301 are respectively rotatably connected to the inner wall of the groove of the slide 3. The output end of the drive motor 303 is fixedly connected to the shaft at one end of the roller 301. The pull rope 302 is wound in the middle of the roller 301, and one end of the pull rope 302 is tied to the rope hole at the top of the support rod 4.

[0025] During use, the operator places the support rod 4 in the top groove of the mounting column 5 and fixes it to the mounting column 5 using the semi-hoop 501. The operator starts the drive motor 303 via the control panel 101. The output of the drive motor 303 drives the reel 301 to rotate, releasing the pull rope 302. One end of the pull rope 302 is then fixedly tied to the top of the support rod 4. Simultaneously, multiple sensing devices (such as strain gauges, pressure sensors, displacement sensors, and angle sensors) are taken from the storage box 9 and installed on the surface of the support rod 4. During the elasticity test, the output of the drive motor 303 drives the reel 301 to rotate on the slide 3, causing the pull rope 302 tied to the top of the support rod 4 to wind up. The tension at the top of the support rod 4 causes it to bend. Sensors installed on its surface detect the bending of the support rod 4. By applying periodic loads (such as tension, compression, and bending), the stress-strain relationship of the support rod 4 within the elastic deformation range is measured to verify whether the material meets the design requirements. This prevents the use of materials with insufficient elasticity, which could cause the support rod to prematurely enter plastic deformation during normal use, leading to structural failure.

[0026] In this embodiment, a slide rod 202 is fixedly connected inside the slide groove 2. The slide rod 202 is connected through to the bottom end of the slide frame 3. A lead screw 201 is provided on one side of the slide rod 202. Both ends of the lead screw 201 are rotatably connected through to the inner wall of the slide groove 2. A drive motor 203 is fixedly installed inside the bottom end of the test box 1. The output end of the drive motor 203 is fixedly connected to one end of the lead screw 201.

[0027] In use, the drive motor 203 operates, and the output end of the drive motor 203 drives the lead screw 201 to rotate in the slide groove 2. While the lead screw 201 rotates, it drives the slide 3 to reciprocate in the slide groove 2. The support rod 4 is tested for different bending arcs based on the moving distance of the slide 3. The bending degree of the support rod 4 (such as micro-bend, medium bend, extreme bend) can be quickly switched by moving the slide 3 alone, which is convenient for comparing the performance differences under different deformation amounts and testing the elastic recovery force, material fatigue life or structural stability of the same support rod 4 when bending at different arcs.

[0028] In this embodiment, the slide 3 is threadedly slidably connected to the lead screw 201, the slide groove 2 is located on one side of the mounting column 5, and the other side of the mounting column 5 is provided with a driving hydraulic cylinder 6. The driving hydraulic cylinder 6 is fixedly connected to the inner bottom of the test box 1, and the telescopic end of the driving hydraulic cylinder 6 is fixedly connected to a positioning plate 601. The driving hydraulic cylinder 6 is located on one side of the support rod 4.

[0029] In use, the operator rotates the support rod 4, causing the stud at the top of the support rod 4 to rotate and be threaded into the positioning plate 601. At the same time, the stud is then fixed a second time with a nut. The hydraulic cylinder 6 is started through the control panel 101. The extension end of the hydraulic cylinder 6 drives the positioning plate 601 and the support rod 4 to descend, so that the bottom end of the support rod 4 is inserted into the top groove of the mounting column 5. The bottom end of the support rod 4 is then fixed by the half hoop 501.

[0030] In this embodiment, the top stud of the support rod 4 is threadedly connected to the positioning plate 601. The side of the driving hydraulic cylinder 6 away from the slide groove 2 is provided with a stamping device 7. The stamping device 7 includes a locking frame 701, a hydraulic actuator 702 and a pusher 703. Several locking frames 701 are respectively fixedly connected to the inner wall of the test box 1 and the outer wall of the pusher 703. The hydraulic actuator 702 is located on the back side of the pusher 703.

[0031] In use, the extension end of the hydraulic cylinder 6 is driven to rise and push the positioning plate 601, causing the support rod 4 to stretch and unfold (existing tent support rods 4 have a telescopic function). The hydraulic actuator 702 is activated, and the extension end of the hydraulic actuator 702 pushes the pusher 703 against the outside of the support rod 4. The pusher 703 continues to advance, causing the elastic pad 704 on one side of the pusher 703 to adhere to the outer wall of the support rod 4. The elastic deformation capability of the elastic pad 704 can tightly adhere to the irregular surface (such as curved surface, uneven texture) of the support rod 4, eliminating the small gap between the metal pusher 703 and the support rod 4, and preventing the impact force caused by the gap from sliding or spreading in the non-impact direction at the moment of contact.

[0032] In this embodiment, both ends of the hydraulic actuator 702 are rotatably mounted in the middle of the clamping frame 701 by plug bolts. An elastic rubber pad 704 is fixedly connected in the groove on the side of the push frame 703 away from the clamping frame 701. The elastic rubber pad 704 is located on one side of the outer wall of the support rod 4. A tension frame 801 is connected through the outside of several hydraulic actuators 702. A cylinder 8 is fixedly connected to the top of the test box 1.

[0033] When in use, the surface friction coefficient of the elastic rubber pad 704 is higher than that of the metal surface (such as the friction coefficient between rubber and metal, which is about 0.6-1.0). This can effectively suppress the tangential sliding between the pusher 703 and the support rod 4 during stamping, and avoid the loss of impact force or the directional deviation of the support rod 4 caused by sliding. When the pusher 703 is stamped laterally, if there is a slight angular deviation, the elastic rubber pad 704 will undergo shear deformation after being compressed, allowing a certain range of "flexible centering" to ensure that the stamping process is carried out smoothly. The elastic deformation of the elastic rubber pad 704 can adaptively compensate for errors and avoid the problem of off-center loading caused by rigid contact.

[0034] In this embodiment, the telescopic end of the cylinder 8 is rotatably connected to one side of the tension frame 801 by a plug bolt. A storage box 9 is fixedly connected to the bottom of the test box 1. The storage box 9 is located at the bottom of the stamping device 7. Slide rails 102 are provided on both the top and bottom sides of the opening of the test box 1. A sliding door 103 is provided on one side of the storage box 9. The top and bottom sides of the sliding door 103 are slidably connected to the slide rails 102. A control panel 101 is provided on one side of the sliding door 103. The control panel 101 is fixedly installed on the outside of the test box 1.

[0035] In use, the retraction end of cylinder 8 retracts, causing the tension frame 801 to rise. Several hydraulic actuators 702 are passively rotated at their tail ends, causing the hydraulic actuators 702 to tilt and lift the push frame 703. This prevents the push frame 703 from getting too close to the support rod 4, which would affect the elasticity test of the support rod 4. The sliding door 103 of the test box 1 has a built-in locking structure. Pushing the sliding door 103 opens and closes the opening of the test box 1. The locking structure fixes the sliding door 103 to the test box 1, closing and sealing the test box 1 to prevent external factors from affecting the elasticity test and the stamping test of the support rod 4.

[0036] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: The worker places the support rod 4 in the top groove of the mounting column 5, and fixes the support rod 4 to the mounting column 5 using the half-hoop 501. The transmission motor 303 is started via the control panel 101. The output end of the transmission motor 303 drives the reel 301 to rotate, releasing the pull rope 302. One end of the pull rope 302 is fixedly tied to the top of the support rod 4. Simultaneously, multiple sensing devices such as strain gauges, pressure sensors, displacement sensors, and angle sensors are taken out from the storage box 9 and installed on the surface of the support rod 4. During the elasticity test, the transmission motor 303... The output end drives the reel 301 to rotate on the carriage 3, causing the pull rope 302 at the top of the binding support rod 4 to wind up. The tension at the top of the support rod 4 causes it to bend. The sensor installed on its surface detects the bending of the support rod 4. By applying periodic loads (such as tension, compression, and bending), the stress-strain relationship of the support rod 4 within the elastic deformation range is measured to verify whether the material meets the design requirements. This avoids the use of materials with insufficient elasticity, which could cause the support rod to prematurely enter plastic deformation during normal use, resulting in structural failure. The operator rotates the support rod 4, causing the stud at the top of the support rod 4 to rotate and be threaded into the positioning plate 601. At the same time, a nut is used to push the stud into place. For secondary fixing, the hydraulic cylinder 6 is activated via the control panel 101. The telescopic end of the hydraulic cylinder 6 drives the positioning plate 601 and the support rod 4 to descend, so that the bottom end of the support rod 4 is inserted into the top groove of the mounting column 5. Then, the bottom end of the support rod 4 is fixed by the semi-hoop 501. At the same time, the telescopic end of the hydraulic cylinder 6 rises and pushes the positioning plate 601, so that the support rod 4 is stretched out (the existing tent support rod 4 has a telescopic function). The hydraulic actuator 702 is activated. The telescopic end of the hydraulic actuator 702 pushes the pusher 703 against the outside of the support rod 4. The pusher 703 continues to advance, so that the elastic pad 704 on one side of the pusher 703 is attached to the outside of the support rod 4. On the wall, the elastic deformation capability of the elastic pad 704 can closely fit the irregular surface (such as curved surface, uneven texture) of the support rod 4, eliminating the small gap between the metal pusher 703 and the support rod 4, and preventing the impact force caused by the gap from sliding or spreading in the non-impact direction at the moment of contact. In this solution, the control method of the electrical components is controlled by its matching peripheral controller, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the art, and is only used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pressure testing platform for tent support structure strength, comprising a test box (1), a sliding frame (3) and a support rod (4), characterized in that, An installation column (5) is fixedly installed on the bottom of the test box (1). The top of the installation column (5) has a column groove. The bottom end of the support rod (4) is inserted into the column groove. A semi-hoop (501) is provided on one side of the installation column (5). The inner side of the semi-hoop (501) is attached to the outer wall of the support rod (4) and fixedly connected to the column groove of the installation column (5) by bolts. A sliding groove (2) is opened through the bottom of the test box (1). The slide (3) is located inside the sliding groove (2). The slide (3) covers the inside of the slide. The device includes a reel (301), a pull rope (302), and a drive motor (303). The drive motor (303) is fixedly connected inside the slide (3). Both ends of the reel (301) are rotatably connected to the inner wall of the groove of the slide (3). The output end of the drive motor (303) is fixedly connected to the shaft at one end of the reel (301). The pull rope (302) is wound in the middle of the reel (301), and one end of the pull rope (302) is tied to the rope hole at the top of the support rod (4).

2. The pressure testing platform for strength of a tent support structure according to claim 1, wherein A slide rod (202) is fixedly connected inside the slide groove (2). The slide rod (202) is connected through to the bottom end of the slide frame (3). A lead screw (201) is provided on one side of the slide rod (202). Both ends of the lead screw (201) are rotatably connected through to the inner wall of the slide groove (2). A drive motor (203) is fixedly installed inside the bottom end of the test box (1). The output end of the drive motor (203) is fixedly connected to one end of the lead screw (201).

3. A pressure testing platform for the strength of a tent support structure according to claim 2, characterized in that, The slide (3) is threadedly slidably connected to the lead screw (201). The slide groove (2) is located on one side of the mounting column (5). The other side of the mounting column (5) is provided with a driving hydraulic cylinder (6). The driving hydraulic cylinder (6) is fixedly connected to the inner bottom of the test box (1). The telescopic end of the driving hydraulic cylinder (6) is fixedly connected to a positioning plate (601). The driving hydraulic cylinder (6) is located on one side of the support rod (4).

4. The pressure testing platform for strength of a tent support structure according to claim 3, wherein The top stud of the support rod (4) is threaded through to the positioning plate (601). The driving hydraulic cylinder (6) is provided with a stamping device (7) on the side away from the slide (2). The stamping device (7) includes a clamping frame (701), a hydraulic actuator (702), and a pusher (703). Several clamping frames (701) are fixedly connected to the inner wall of the test box (1) and the outer wall of the pusher (703), respectively. The hydraulic actuator (702) is located on the back side of the pusher (703).

5. A pressure testing platform for the strength of a tent support structure according to claim 4, characterized in that Both ends of the hydraulic actuator (702) are rotatably mounted in the middle of the clamping frame (701) by plug bolts. An elastic rubber pad (704) is fixedly connected in the groove on the side of the push frame (703) away from the clamping frame (701). The elastic rubber pad (704) is located on the outer wall of the support rod (4). A tension frame (801) is connected through the outside of several hydraulic actuators (702). A cylinder (8) is fixedly connected to the top of the test box (1).

6. A pressure testing platform for the strength of a tent support structure according to claim 5, wherein, The telescopic end of the cylinder (8) is rotatably connected to one side of the tension frame (801) by a plug bolt. A storage box (9) is fixedly connected to the bottom of the test box (1). The storage box (9) is located at the bottom of the stamping device (7). Slide rails (102) are provided on both the top and bottom sides of the opening of the test box (1). A sliding door (103) is provided on one side of the storage box (9). The top and bottom sides of the sliding door (103) are slidably connected to the slide rails (102). A control panel (101) is provided on one side of the sliding door (103). The control panel (101) is fixedly installed on the outside of the test box (1).

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