Protective device of hydraulic universal testing machine

Abstract

The utility model belongs to the technical field of hydraulic universal testing machines, and particularly relates to a protective device of a hydraulic universal testing machine, which comprises a base, a lifting mechanism arranged above the base, a protective frame arranged on the outer side of the lifting mechanism, a protective door mechanism arranged on one side of the protective frame, and a supporting plate arranged above the lifting mechanism. And a transmission mechanism is arranged above the supporting plate. The protective device of the hydraulic universal testing machine has the beneficial effects that the protective frame moves up and down through the lifting mechanism, so that a worker can place a sample conveniently, and the worker is protected; the door plate can be obliquely opened through the linear telescopic device, so that a worker can conveniently adjust the position of a sample, and most outwards splashed chippings can be blocked when the test condition is observed; and the supporting plate can prevent chips from splashing upwards, so that the safety during testing is further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic universal testing machines, and specifically relates to a protective device for a hydraulic universal testing machine. Background Technology

[0002] Hydraulic universal testing machines are mainly used for tensile, compression, bending, and shear tests on metals, non-metals, composite materials, and their products. They can also perform tests and data processing according to GB, ISO, JIS, ASTM, DIN, and various user-provided standards. Widely used in material testing and analysis in industries such as aerospace, machinery manufacturing, wire and cable, rubber and plastics, and building materials, they are ideal testing equipment for research institutes, universities, industrial and mining enterprises, technical supervision departments, and commodity inspection and arbitration departments.

[0003] Patent CN220271032U discloses a hydraulic universal testing machine, including a worktable and a main body. The worktable is fixedly connected to the main body, and a protective cover is fixedly connected to the worktable. The opening of the protective cover has a lifting cover plate via a lifting mechanism. During testing, operators can only operate and observe through the opening of the protective cover. The protective cover is inconvenient for placing samples before testing and cannot prevent flying debris during observation. Therefore, designing a protective device for a hydraulic universal testing machine that facilitates sample placement and prevents flying debris during observation has become an urgent problem to be solved. Utility Model Content

[0004] This utility model addresses the above-mentioned problems by providing a protective device for a hydraulic universal testing machine.

[0005] This utility model relates to a protective device for a hydraulic universal testing machine, including a base, a lifting mechanism above the base, a protective frame outside the lifting mechanism, a protective door mechanism on one side of the protective frame, a support plate above the lifting mechanism, and a transmission mechanism above the support plate.

[0006] Preferably, the lifting mechanism includes two lead screws, the bottom of which is rotatably connected to the base, and the top of which passes through and is rotatably connected to a support plate. Both lead screws are fixedly connected to annular limiting structures on the upper and lower sides of the support plate, and both lead screws are threaded with two connecting blocks on the side near the base.

[0007] Preferably, the protective frame includes two irregularly shaped protective plates and a rectangular protective plate. The two irregularly shaped protective plates are respectively fixedly connected to both sides of the rectangular protective plate, and the inner sides of the two irregularly shaped side plates are fixedly connected to the connecting block.

[0008] Preferably, the protective door mechanism includes a door panel, the upper part of which is hinged to a support plate, and a linear telescopic device is hinged to the inner side of the door panel, with the side of the linear telescopic device away from the door panel hinged to the bottom surface of the support plate.

[0009] Preferably, the transmission mechanism includes a dual-head motor, which is fixedly connected to the top surface of the support plate. Both output shafts of the dual-head motor are fixedly connected to bevel gear 1, and both bevel gear 1 are driven by bevel gear 2. The two bevel gear 2 are respectively fixedly connected to the top of two lead screws.

[0010] Preferably, the linear telescopic device is a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Compared with existing technologies, the protective device of this utility model hydraulic universal testing machine...

[0013] (1) The protective device of the hydraulic universal testing machine has a protective frame that moves up and down through a lifting mechanism, which facilitates the placement of samples by the staff and protects the staff.

[0014] (2) The protective device of the hydraulic universal testing machine can tilt and open the door through the linear telescopic device, which makes it convenient for the staff to adjust the sample position and can block most of the outward splashing debris when observing the test.

[0015] (3) The protective device of the hydraulic universal testing machine has two lead screws whose bottoms are rotatably connected to the base, and two lead screws whose tops pass through and are rotatably connected to the support plate. Both lead screws are fixedly connected to the upper and lower sides of the support plate with annular limiting structures, so that the support plate can prevent debris from splashing upwards, further improving the safety during testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0017] Figure 1 A schematic diagram of the protective device for the hydraulic universal testing machine provided in Example 1;

[0018] Figure 2 Internal structural diagram of the protective device of the hydraulic universal testing machine provided in Example 1;

[0019] Figure 3 A front view of the protective device of the hydraulic universal testing machine provided in Example 1;

[0020] Figure 4This is a top view of the protective device of the hydraulic universal testing machine provided in Example 1.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base, 2. Support plate, 3. Lead screw, 4. Circular limiting structure, 5. Connecting block, 6. Irregular protective plate, 7. Rectangular protective plate, 8. Door panel, 9. Linear telescopic device, 10. Dual-head motor, 11. Bevel gear one, 12. Bevel gear two. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1

[0026] The following is combined with Figures 1-4 The present invention will be further described as follows: Figures 1-4 The protective device of the hydraulic universal testing machine shown includes a base 1, a lifting mechanism is provided above the base 1, a protective frame is provided on the outside of the lifting mechanism, a protective door mechanism is provided on one side of the protective frame, a support plate 2 is provided above the lifting mechanism, and a transmission mechanism is provided above the support plate 2.

[0027] like Figures 1-4 As shown, the lifting mechanism includes two lead screws 3. The bottom of both lead screws 3 is rotatably connected to the base 1. The top of both lead screws 3 passes through and is rotatably connected to the support plate 2. Both lead screws 3 are fixedly connected to annular limiting structures 4 on the upper and lower sides of the support plate 2. Both lead screws 3 are threadedly connected to two connecting blocks 5 on the side near the base 1.

[0028] like Figures 1-4 As shown, the protective frame includes two irregularly shaped protective plates 6 and a rectangular protective plate 7. The two irregularly shaped protective plates 6 are fixedly connected to both sides of the rectangular protective plate 7, and the inner sides of the two irregularly shaped protective plates 6 are fixedly connected to the connecting block 5.

[0029] like Figures 1-4 As shown, the protective door mechanism includes a door panel 8, the upper part of which is hinged to a support plate 2, and a linear telescopic device 9 is hinged to the inner side of the door panel 8. The side of the linear telescopic device 9 away from the door panel 8 is hinged to the bottom surface of the support plate 2.

[0030] like Figures 1-4As shown, the transmission mechanism includes a dual-head motor 10, which is fixedly connected to the top surface of the support plate 2. Both output shafts of the dual-head motor 10 are fixedly connected to bevel gear 11, and both bevel gear 11 are driven by bevel gear 12. The two bevel gears 12 are respectively fixedly connected to the top of the two lead screws 3.

[0031] like Figures 1-4 As shown, the linear telescopic device 9 is a cylinder, hydraulic cylinder, or electric telescopic rod.

[0032] Working principle:

[0033] Start the dual-head motor 10, and the two bevel gears 11 drive the two bevel gears 12 to rotate, thereby the two lead screws 3 drive the connecting block 5 to move up and down, realizing the up and down movement of the protective frame; start the linear telescopic device 9, and its push rod drives the door panel 8 to tilt open or close.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A protective device for a hydraulic universal testing machine, comprising a base (1), characterized in that, A lifting mechanism is provided above the base (1), a protective frame is provided on the outside of the lifting mechanism, a protective door mechanism is provided on one side of the protective frame, a support plate (2) is provided above the lifting mechanism, and a transmission mechanism is provided above the support plate (2).

2. The protective device for the hydraulic universal testing machine according to claim 1, characterized in that, The lifting mechanism includes two lead screws (3), the bottom of which is rotatably connected to the base (1) above, and the top of which is rotatably connected to the support plate (2). Both lead screws (3) are fixedly connected to annular limiting structures (4) on the upper and lower sides of the support plate (2). Both lead screws (3) are threaded with two connecting blocks (5) on the side near the base (1).

3. The protective device for the hydraulic universal testing machine according to claim 2, characterized in that, The protective frame includes two irregular protective plates (6) and a rectangular protective plate (7). The two irregular protective plates (6) are fixedly connected to the two sides of the rectangular protective plate (7), and the inner sides of the two irregular protective plates (6) are fixedly connected to the connecting block (5).

4. The protective device for the hydraulic universal testing machine according to claim 1, characterized in that, The protective door mechanism includes a door panel (8), the upper part of which is hinged to a support plate (2), and a linear telescopic device (9) is hinged to the inner side of the door panel (8). The side of the linear telescopic device (9) away from the door panel (8) is hinged to the bottom surface of the support plate (2).

5. The protective device for the hydraulic universal testing machine according to claim 2, characterized in that, The transmission mechanism includes a dual-head motor (10), which is fixedly connected to the top surface of the support plate (2). Both output shafts of the dual-head motor (10) are fixedly connected to bevel gear one (11), and both bevel gear one (11) are driven by bevel gear two (12). The two bevel gear two (12) are respectively fixedly connected to the top of two lead screws (3).

6. The protective device for the hydraulic universal testing machine according to claim 4, characterized in that, The linear telescopic device (9) is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

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