O-shaped ring tensile property detection device

Abstract

The utility model relates to the technical field of O-shaped rings, in particular to an O-shaped ring tensile property detection device which comprises a fixing plate and an O-shaped ring, the O-shaped ring is arranged above the fixing plate, two parallel guide rods are fixedly connected in the fixing plate, two sliding pieces are connected to the guide rods in a sliding mode, and the two sliding pieces are connected with the O-shaped ring in a sliding mode. The top of the fixing plate is provided with a sliding piece, the top of the sliding piece is fixedly connected with a fixing shaft, the top of the fixing plate is provided with a movable notch, the fixing shaft is connected with the movable notch in a sliding mode, and the top of the fixing shaft is fixedly connected with fixing clamps. The O-shaped ring can be positioned in the stretching process, and the situation that the O-shaped ring moves up and down in the stretching process, consequently, the O-shaped ring cannot be kept horizontal in the stretching process, and the accuracy of the tensile property detection result is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of O-ring stretching detection, in particular to an O-ring stretching performance detection device. Background Art

[0002] An O-ring is a rubber sealing ring with a circular cross-section. Because its cross-section is O-shaped, it is called an O-shaped rubber sealing ring, also called an O-ring. In order to ensure the quality of the O-ring, the O-ring needs to be tensile tested.

[0003] In the prior art, a sealing ring detection device, such as that proposed in patent application number "CN202022358073.1", includes a main body, and a motor with the output end facing upward is installed at the center position inside the main body. It adopts a horizontal structure, and drives two sets of racks to slide in opposite directions through gears. Support arms are fixedly arranged at the diagonal positions on the inner sides of the two sets of racks, and support shafts are fixedly arranged at the tops of the ends of the support arms.

[0004] However, in the above patent application, when testing the O-ring, the two supporting shafts are moved away from each other, and the O-ring is stretched from the inside to perform the stretching test. The lack of upper and lower positioning of the O-ring may make it impossible for the O-ring to remain horizontal during the stretching test, thereby affecting the test results of the O-ring. Utility Model Content

[0005] The purpose of the present invention is to provide an O-ring tensile performance testing device to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An O-ring tensile performance testing device includes a fixed plate and an O-ring, the O-ring is arranged above the fixed plate, two parallel guide rods are fixedly connected to the fixed plate, two sliding members are slidably connected to the guide rods, the top of the sliding member is fixedly connected to a fixed shaft, and a movable notch is provided on the top of the fixed plate, and the fixed shaft and the movable notch are slidably connected.

[0008] The top of the fixed shaft is fixedly connected with a fixing clamp, and the upper and lower clamping parts of the fixing clamp are fixedly connected with anti-slip splints. The fixing clamp is used to clamp the O-ring and stretch the O-ring. The anti-slip splints on the two clamping parts of the fixing clamp are respectively attached to the top and bottom of the O-ring to increase the friction between the fixing clamp and the O-ring.

[0009] Preferably, the sliding member includes a sliding plate, the top of the sliding plate is fixedly connected to the bearing plate, the bottom of the bearing plate is fixedly connected to the connecting plate, the sliding plate and the guide rod are slidably connected, and the fixed shaft and the bearing plate are fixedly connected.

[0010] Preferably, an adjusting sleeve is fixedly connected to one side of the fixing plate, a movable pushing block is provided in the adjusting sleeve, and an opening is provided on one side of the fixing plate close to the adjusting sleeve.

[0011] Preferably, both sides of the pushing block are rotatably connected with a pushing plate, one end of the pushing plate away from the pushing block extends to the inside of the fixed plate, and one end of the pushing plate located inside the fixed plate is rotatably connected to the connecting plate.

[0012] Preferably, one side of the adjustment sleeve is fixedly connected to a motor mounting frame, a micro motor is mounted on the motor mounting frame, the output end of the micro motor is located in the adjustment sleeve and is fixedly connected to an adjustment screw, the adjustment screw and the push block are threadedly connected to drive the push block to move together.

[0013] Preferably, a pointer is fixedly connected to the top of the pushing block, and a scale used in conjunction with the pointer is fixedly connected to the adjusting sleeve.

[0014] Beneficial effects of the utility model:

[0015] The utility model clamps two sides of the O-ring by two fixing clamps to stretch the O-ring. The fixing clamps clamp the upper and lower parts of the O-ring at the same time, so that the O-ring can be kept in position during the stretching process, and the O-ring is prevented from moving up and down during the stretching process, which causes the O-ring to be unable to remain horizontal during the stretching and affects the accuracy of the tensile performance test results. At the same time, the anti-skid splint is used as the contact surface between the fixing clamp and the O-ring, which can prevent the O-ring from slipping during the stretching. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the middle fixed plate;

[0019] Figure 3 This utility model Figure 2 a cross-sectional view of the middle fixing plate;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the structure of the sliding part.

[0021] The reference numerals in the figures are as follows:

[0022] 1. Fixed plate, 2. O-ring, 3. Guide rod, 4. Sliding part, 401. Sliding plate, 402. Loading plate, 403. Connecting plate, 5. Fixed shaft, 6. Movable notch, 7. Fixed clamp, 8. Anti-slip splint, 9. Adjusting sleeve, 10. Push block, 11. Push plate, 12. Motor mounting bracket, 13. Micro motor, 14. Adjusting screw, 15. Pointer, 16. Scale. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] A device for testing the tensile properties of an O-ring comprises a fixed plate 1 and an O-ring 2. The O-ring 2 is arranged above the fixed plate 1. Two parallel guide rods 3 are fixedly connected to the fixed plate 1. Two sliding members 4 are slidably connected to the guide rods 3. A fixed shaft 5 is fixedly connected to the top of the sliding member 4. A movable notch 6 is provided on the top of the fixed plate 1. The fixed shaft 5 and the movable notch 6 are slidably connected.

[0025] A fixing clamp 7 is fixedly connected to the top of the fixed shaft 5, and the upper and lower clamping parts of the fixing clamp 7 are fixedly connected to anti-slip splints 8. The fixing clamp 7 is used to clamp the O-ring 2 and stretch the O-ring 2. The anti-slip splints 8 on the two clamping parts of the fixing clamp 7 are respectively attached to the top and bottom of the O-ring 2, so as to increase the friction between the fixing clamp 7 and the O-ring 2.

[0026] like Figure 2 and Figure 3 The interior of the fixed plate 1 is a cavity, and two guide rods 3 are used to pass through the sliding member 4, so that the guide rod 3 can only move horizontally in the cavity inside the fixed plate 1. The top of the fixed shaft 5 can pass through the movable slot 6 to the outside of the fixed plate 1. The fixing clamp 7 is an existing technology and can clamp the O-ring 2.

[0027] The sliding member 4 includes a sliding plate 401 , the top of the sliding plate 401 is fixedly connected to a supporting plate 402 , the bottom of the supporting plate 402 is fixedly connected to a connecting plate 403 , the sliding plate 401 is slidingly connected to the guide rod 3 , and the fixed shaft 5 is fixedly connected to the supporting plate 402 .

[0028] like Figure 3 and Figure 4The connecting plate 403 is located on one side of the sliding plate 401. There is an opening on the sliding plate 401 to facilitate the passage of the guide rod 3. The top of the bearing plate 402 is a horizontal plane.

[0029] An adjusting sleeve 9 is fixedly connected to one side of the fixing plate 1 , a movable pushing block 10 is provided in the adjusting sleeve 9 , and an opening is provided on one side of the fixing plate 1 close to the adjusting sleeve 9 .

[0030] like Figure 3 and Figure 4 The interior of the adjusting sleeve 9 can be communicated with the interior of the fixing plate 1 through the opening of the fixing plate 1 .

[0031] Both sides of the pushing block 10 are rotatably connected with a pushing plate 11 , and one end of the pushing plate 11 away from the pushing block 10 extends to the inside of the fixed plate 1 , and one end of the pushing plate 11 located inside the fixed plate 1 is rotatably connected to the connecting plate 403 .

[0032] like Figure 3 and Figure 4 There are two openings on the fixed plate 1, and the two pushing plates 11 can pass through the openings of the fixed plate 1 respectively and be connected to the connecting plate 403 located inside the fixed plate 1, which can drive the connecting plate 403 and the entire sliding member 4 to move.

[0033] One side of the adjustment sleeve 9 is fixedly connected to a motor mounting bracket 12, on which a micro motor 13 is mounted. An adjusting screw 14 is fixedly connected to the output end of the micro motor 13 and located inside the adjustment sleeve 9. The adjusting screw 14 is threadedly connected to the pushing block 10 to drive the pushing block 10 to move together.

[0034] like Figure 2 and Figure 3 The micro motor 13 has an internal power supply and an external control switch. The micro motor 13 can drive the adjusting screw 14 to rotate in different directions. The end of the adjusting screw 14 away from the micro motor 13 is rotatably connected to one side of the fixed plate 1.

[0035] A pointer 15 is fixedly connected to the top of the pushing block 10 , and a scale 16 used in conjunction with the pointer 15 is fixedly connected to the adjusting sleeve 9 .

[0036] like Figure 2 and Figure 3 There is an opening on the adjustment sleeve 9, so that when the push block 10 moves, it can drive the pointer 15 to move. The pointer 15 is located above the scale 16. The moving distance of the pointer 15 can be grasped through the scale 16. The moving distance of the pointer 15 is the movement of the push block 10. Through the moving distance of the push block 10, the moving distance of the sliding connection 4, the fixed shaft 5 and the fixed clamp 7 can be calculated.

[0037] The working principle of the O-ring tensile performance testing device provided by the utility model is as follows:

[0038] When the tensile properties of the O-ring 2 are tested, the O-ring 2 is clamped from both sides using the fixing clamp 7;

[0039] Then the micro motor 13 drives the adjusting screw 14 to rotate clockwise, causing the pushing block 10 to move toward the fixed plate 1. When the pushing block 10 moves, it pushes the sliding member 4 through the pushing plate 11. The two sliding members 4 move away from each other at the same speed. The sliding members 4 drive the fixing clamps 7 to move away from each other through the fixed shaft 5. The fixing clamps 7 stretch the O-ring 2 to both sides at the same speed.

[0040] When the micro motor 13 drives the adjusting screw 14 to rotate counterclockwise, the pushing block 10 moves in the direction away from the fixed plate 1. When the pushing block 10 moves, the pushing plates 11 on both sides pull the sliding members 4, so that the two sliding members 4 move toward each other. The sliding members 4 drive the fixing clamps 7 to move closer to each other. At this time, the O-ring 2 can be removed and a new O-ring 2 can be clamped by the fixing clamp 7 for tensile testing.

[0041] Compared with related technologies, the O-ring tensile performance testing device provided by the present invention has the following beneficial effects:

[0042] The present invention stretches the O-ring 2 by clamping the two sides of the O-ring 2 with two fixing clamps 7. The fixing clamps 7 clamp the upper and lower parts of the O-ring 2 at the same time, so that the O-ring 2 can be kept in position during the stretching process, thereby preventing the O-ring 2 from moving up and down during the stretching process, which causes the O-ring 2 to be unable to remain horizontal during the stretching process and affects the accuracy of the tensile performance test results. At the same time, the anti-slip splint 8 is used as the contact surface between the fixing clamp 7 and the O-ring 2 to prevent the O-ring 2 from slipping during the stretching process.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An O-ring tensile performance testing device, comprising a fixed plate (1) and an O-ring (2), wherein the O-ring (2) is arranged above the fixed plate (1), and is characterized in that: Two parallel guide rods (3) are fixedly connected to the fixed plate (1), two sliding members (4) are slidably connected to the guide rods (3), a fixed shaft (5) is fixedly connected to the top of the sliding member (4), a movable notch (6) is provided on the top of the fixed plate (1), and the fixed shaft (5) and the movable notch (6) are slidably connected; The top of the fixed shaft (5) is fixedly connected with a fixing clamp (7), and the upper and lower clamping parts of the fixing clamp (7) are fixedly connected with anti-slip splints (8). The fixing clamp (7) is used to clamp the O-ring (2) and stretch the O-ring (2). The anti-slip splints (8) on the two clamping parts of the fixing clamp (7) are respectively attached to the top and bottom of the O-ring (2) to increase the friction between the fixing clamp (7) and the O-ring (2).

2. The O-ring tensile performance testing device according to claim 1, characterized in that: The sliding member (4) comprises a sliding plate (401), the top of the sliding plate (401) is fixedly connected to a bearing plate (402), the bottom of the bearing plate (402) is fixedly connected to a connecting plate (403), the sliding plate (401) and the guide rod (3) are slidably connected, and the fixed shaft (5) and the bearing plate (402) are fixedly connected.

3. The O-ring tensile performance testing device according to claim 2, characterized in that: An adjustment sleeve (9) is fixedly connected to one side of the fixed plate (1), a movable pushing block (10) is provided in the adjustment sleeve (9), and an opening is provided on one side of the fixed plate (1) close to the adjustment sleeve (9).

4. The O-ring tensile performance testing device according to claim 3, characterized in that: Both sides of the pushing block (10) are rotatably connected to a pushing plate (11), one end of the pushing plate (11) away from the pushing block (10) extends to the interior of the fixed plate (1), and one end of the pushing plate (11) located inside the fixed plate (1) is rotatably connected to the connecting plate (403).

5. The O-ring tensile performance testing device according to claim 3, characterized in that: One side of the adjustment sleeve (9) is fixedly connected to a motor mounting frame (12), a micro motor (13) is mounted on the motor mounting frame (12), an output end of the micro motor (13) is fixedly connected to an adjustment screw (14) located inside the adjustment sleeve (9), and the adjustment screw (14) is threadedly connected to the push block (10) for driving the push block (10) to move together.

6. The O-ring tensile performance testing device according to claim 3, characterized in that: A pointer (15) is fixedly connected to the top of the pushing block (10), and a scale (16) used in conjunction with the pointer (15) is fixedly connected to the adjusting sleeve (9).

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