Stainless steel pipe impact resistance testing device

Abstract

This utility model discloses a stainless steel pipe impact resistance testing device, including a fixed base, a U-shaped seat fixed on the fixed base, and a column. A guide rod is horizontally fixed to the back of the column, and a horizontal sliding sleeve is slidably fitted onto the guide rod at the top of the protective cover. A fixed plate is fixed to the front of the slide rail, and a guide post is vertically fixed to the fixed plate. A vertical sliding sleeve is slidably fitted onto the guide post. Two connecting rods, symmetrically mounted and hinged together, are provided between the vertical sliding sleeve and the protective cover. This utility model achieves comprehensive protection by having two protective covers close together and closing to each other, preventing the stainless steel pipe from being knocked away and injuring personnel during the test. By having two protective covers far apart, the obstruction of the protective covers is eliminated, making it convenient to place the stainless steel pipe for testing and to retrieve any stainless steel pipes that are knocked away, intercepted by the protective covers, and ultimately fall to the ground during the test. Through its relatively simple overall structural design, it is not only convenient to use but also achieves the purpose of improving safety protection.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe testing technology, specifically to a stainless steel pipe impact resistance testing device. Background Technology

[0002] The stainless steel pipe pendulum impact testing machine is a device used to test the impact resistance of stainless steel pipes under dynamic loads. It evaluates the impact toughness and fracture behavior of stainless steel pipes by the impact energy of the pendulum and is widely used in the production, quality inspection and research of stainless steel pipes.

[0003] The pendulum impact testing machine uses a pendulum to swing freely from a certain height and fall, impacting a stainless steel tube sample placed on a support. The impact energy of the pendulum is absorbed by the stainless steel tube sample. By measuring the energy change before and after the pendulum impact, the impact energy absorbed by the stainless steel tube can be calculated, thereby evaluating its impact resistance performance.

[0004] Currently, there are two main types of stainless steel tube pendulum impact testing machines on the market, as shown in the attached diagram of the instruction manual. Figure 6 and Figure 7 As shown, the difference between the two is that Figure 7 The stainless steel tube pendulum impact testing machine shown is equipped with a fixed protective cover. This is an improved version designed to meet actual usage requirements. During the test, the pendulum impact can knock the stainless steel tube sample away, and the knocked-away stainless steel tube can accidentally injure nearby workers. Therefore, a protective cover with a relief groove on the top for the swing of the pendulum arm and pendulum is added to provide protection.

[0005] However, these two fixed protective covers are not closed, and there is a large gap between them that does not provide protection. Although this gap makes it convenient to place the support and the stainless steel tube sample, the stainless steel tube sample can easily fly out through this gap during the test, which still poses a great danger. At the same time, if the stainless steel tube sample is not thrown out through this gap but is intercepted by the protective cover, it is difficult to pick up the thrown or intercepted stainless steel tube sample that eventually falls down due to the obstruction of the fixed protective cover, resulting in certain safety hazards and inconvenience in use. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a stainless steel pipe impact resistance testing device, which solves the problems of certain safety hazards and inconvenience in the use of common stainless steel pipe pendulum impact testing machines.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] The impact resistance testing device for stainless steel pipes includes a fixed base, a U-shaped seat and a column fixed on the fixed base, a support mounted on the U-shaped seat for supporting the stainless steel pipe, a fixed plate fixedly connected to the top of the column, a swing arm rotatably connected to the fixed plate, and a pendulum fixed to the end of the swing arm. The front and back of the fixed base are both fixed with slide rails, and both sides of the fixed base are provided with protective covers. The protective covers are slidably connected to the slide rails through rollers at the bottom.

[0009] A guide rod is horizontally fixed to the back of the column, and a horizontal sliding sleeve is fixed to the top of the protective cover and slidably sleeved on the guide rod.

[0010] A fixing plate is fixed to the front of the slide rail, a guide post is vertically fixed to the fixing plate, a vertical slide sleeve is slidably sleeved on the guide post, two connecting rods that are movably hinged and symmetrically arranged between the vertical slide sleeve and the protective cover are provided, and a handle is fixed on the vertical slide sleeve.

[0011] Preferably, a fixing rod is fixed between the slide rails on the front and back of the fixed base, and the fixed base, fixing plate and fixing rod are all fixed to the workshop floor by fixing bolts.

[0012] Preferably, the slide rail is a U-shaped guide rail with openings at both ends, and the length of the slide rail and the length of the guide rod do not exceed the total length of the two protective covers.

[0013] Preferably, each of the two protective covers is provided with a clearance groove at the position corresponding to the swing arm, and a buffer pad is fixed on the opposite surface of each of the two protective covers.

[0014] Preferably, the guide post is located on the left side of the front of the column, the length of the protective cover on the right side of the column is greater than the length of the protective cover on the left side of the column, and the protective cover on the right side of the column is provided with a clearance notch at the position corresponding to the column.

[0015] Preferably, the connecting rod is located at the corner of the front of the protective cover near the fixed base.

[0016] Preferably, an iron ring is fixed on the vertical sliding sleeve, and a magnetic ring is fixed on the guide post near the top.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention features two sliding protective covers that can move laterally closer together and further apart. The two covers closing when close together provide comprehensive protection, preventing the stainless steel pipe from being thrown and injuring personnel during testing. The two covers moving apart eliminates obstruction, facilitating the placement of the stainless steel pipe for testing and the removal of any pipes thrown or intercepted by the covers that fall to the ground. This relatively simple overall design not only makes it convenient to use but also improves safety, solving the problems of safety hazards and inconvenience associated with common stainless steel pipe pendulum impact testing machines. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view of the guide post of this utility model;

[0021] Figure 3 This utility model Figure 1 Top view of section AA;

[0022] Figure 4 This is a top view of the slide rail of this utility model;

[0023] Figure 5 This is a top view of the guide post of this utility model;

[0024] Figure 6 Example 1 of an existing pendulum impact testing machine;

[0025] Figure 7 Example 2 is an existing pendulum impact testing machine.

[0026] In the diagram: 1. Fixed base; 2. U-shaped seat; 3. Column; 4. Stainless steel pipe; 5. Support; 6. Fixed plate; 7. Swing arm; 8. Pendulum; 9. Slide rail; 10. Protective cover; 101. Clearance notch; 11. Roller; 12. Guide rod; 13. Horizontal sliding sleeve; 14. Fixed plate; 15. Guide column; 16. Vertical sliding sleeve; 17. Connecting rod; 18. Handle; 19. Fixed rod; 20. Buffer pad; 21. Iron ring; 22. Magnetic ring. Detailed Implementation

[0027] 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.

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a stainless steel pipe impact resistance testing device, including a fixed base 1, a U-shaped seat 2 and a column 3 fixed on the fixed base 1, a support 5 installed on the U-shaped seat 2 for supporting the stainless steel pipe 4, a fixed plate 6 fixedly connected to the top of the column 3, a swing arm 7 rotatably connected to the fixed plate 6, and a pendulum 8 fixed to the end of the swing arm 7.

[0029] The front and back of the fixed base 1 are both fixed with slide rails 9, and a fixing rod 19 is fixed between the slide rails 9 on the front and back of the fixed base 1. The fixed base 1, the fixed plate 14 and the fixing rod 19 are all fixed to the workshop floor by fixing bolts. The slide rail 9 is a U-shaped guide rail with openings at both ends.

[0030] Both sides of the fixed base 1 are provided with protective covers 10. Both protective covers 10 are provided with clearance grooves at the positions corresponding to the swing arm 7. The guide post 15 is located on the left side of the front of the column 3. The length of the protective cover 10 on the right side of the column 3 is greater than the length of the protective cover 10 on the left side of the column 3. The protective cover 10 on the right side of the column 3 is provided with clearance notch 101 at the position corresponding to the column 3. Both protective covers 10 are fixed with buffer pads 20 on their opposite sides.

[0031] A guide rod 12 is horizontally fixed on the back of the column 3. The protective cover 10 is slidably connected to the slide rail 9 through the bottom roller 11. The length of the slide rail 9 and the length of the guide rod 12 do not exceed the total length of the two protective covers 10. A horizontal sliding sleeve 13 is fixed on the top of the protective cover 10 and is slidably sleeved on the guide rod 12.

[0032] A fixing plate 14 is fixed to the front of the slide rail 9. A guide post 15 is vertically fixed to the fixing plate 14. A vertical slide sleeve 16 is slidably connected to the guide post 15. An iron ring 21 is fixed to the vertical slide sleeve 16. A magnetic ring 22 is fixed to the guide post 15 near the top. Two connecting rods 17 are provided between the vertical slide sleeve 16 and the protective cover 10 and are symmetrically connected. The connecting rods 17 are connected to the corner of the front of the protective cover 10 near the fixed base 1. A handle 18 is fixed to the vertical slide sleeve 16.

[0033] Working principle:

[0034] After placing the stainless steel pipe 4, pull the vertical sliding sleeve 16 upwards using the handle 18. The connecting rod 17 drives the two protective covers 10 to move closer together along the slide rail 9 and guide rod 12, eventually closing together. The height of the magnetic ring 22 is exactly at the rising height of the iron ring 21 on the vertical sliding sleeve 16. The two are temporarily fixed in position by magnetic attraction. Rotate the swing arm 7 and pendulum 8 counterclockwise upwards, and they are locked by the buckle on the fixed plate 6. Unlocking the buckle releases the swing arm 7 and pendulum 8, allowing them to swing freely downwards to strike the stainless steel pipe 4 for testing. The stainless steel pipe 4 that is knocked away is intercepted by the protective cover 10 and eventually falls to the ground below. Push the vertical sliding sleeve 16 downwards using the handle 18. The connecting rod 17 drives the two protective covers 10 to move away from each other along the slide rail 9 and guide rod 12. The gap between them allows for easy removal of the tested stainless steel pipe 4 and easy placement of a new stainless steel pipe 4 for testing. The structure is simple, the protection is good, and the operation is convenient.

Claims

1. A stainless steel pipe impact resistance testing device, comprising a fixed base (1), a U-shaped seat (2) and a column (3) fixed on the fixed base (1), a support (5) mounted on the U-shaped seat (2) for supporting a stainless steel pipe (4), a fixed plate (6) fixedly connected to the top of the column (3), a swing arm (7) rotatably connected to the fixed plate (6), and a pendulum (8) fixed to the end of the swing arm (7), characterized in that: The fixed base (1) has slide rails (9) fixed on both the front and back sides, and protective covers (10) are provided on both sides of the fixed base (1). The protective covers (10) are slidably connected to the slide rails (9) through the bottom rollers (11). A guide rod (12) is horizontally fixed on the back of the column (3), and a horizontal sliding sleeve (13) is fixed on the top of the protective cover (10) and slidably sleeved on the guide rod (12). A fixing plate (14) is fixed on the front of the slide rail (9). A guide post (15) is vertically fixed on the fixing plate (14). A vertical slide sleeve (16) is slidably sleeved on the guide post (15). Two connecting rods (17) are provided between the vertical slide sleeve (16) and the protective cover (10) and are symmetrically connected and hinged. A handle (18) is fixed on the vertical slide sleeve (16).

2. The apparatus for detecting impact resistance of a stainless steel pipe according to claim 1, characterized by: A fixing rod (19) is fixed between the slide rails (9) on the front and back of the fixed base (1). The fixed base (1), the fixing plate (14) and the fixing rod (19) are all fixed to the workshop floor by fixing bolts.

3. The apparatus for detecting impact resistance of a stainless steel pipe according to claim 1, characterized by: The slide rail (9) is a U-shaped guide rail with openings at both ends. The length of the slide rail (9) and the length of the guide rod (12) do not exceed the total length of the two protective covers (10).

4. The apparatus for detecting impact resistance of a stainless steel pipe according to claim 1, characterized by: Both of the protective covers (10) are provided with clearance grooves at the positions corresponding to the swing arm (7), and the opposing surfaces of the two protective covers (10) are fixed with buffer pads (20).

5. The apparatus for impact detection of stainless steel pipes according to claim 1, wherein: The guide post (15) is located on the left side of the front of the column (3). The length of the protective cover (10) on the right side of the column (3) is greater than the length of the protective cover (10) on the left side of the column (3). The protective cover (10) on the right side of the column (3) is provided with a clearance notch (101) at the position corresponding to the column (3).

6. The apparatus for impact detection of stainless steel pipes according to claim 1, wherein: The connecting rod (17) is connected to the corner of the front of the protective cover (10) near the fixed base (1).

7. The apparatus for impact detection of stainless steel pipes according to claim 1, wherein: An iron ring (21) is fixed on the vertical sliding sleeve (16), and a magnetic ring (22) is fixed on the guide post (15) near the top.

Images