Search

CN-224202871-U - Auxiliary device for tensile test of vulcanized rubber dumbbell sample

CN224202871UCN 224202871 UCN224202871 UCN 224202871UCN-224202871-U

Abstract

The utility model relates to the technical field of vulcanized rubber production, in particular to an auxiliary device for a vulcanized rubber dumbbell sample tensile test, which comprises a mounting seat, wherein limiting blocks are arranged on two sides of the top of the mounting seat, the limiting blocks are isosceles trapezoid blocks, the wide sides of the limiting blocks face the edge of the mounting seat correspondingly, a clamping mechanism is arranged on one side, relatively close to the two limiting blocks, of the limiting blocks, a cover plate is hinged to one side, far away from the other limiting block, of the top of the cover plate, scale marks are arranged on the top surface of the cover plate, the other side of the cover plate is fixed with the other limiting block through a lock catch, and a rectangular groove is formed in the middle of the cover plate. When the auxiliary device for the vulcanized rubber dumbbell sample tensile test is used, the sample arranged between the limiting blocks is pressed and fixed through the downward pressing of the cover plate, and the scribing operation on the sample is realized by means of the linear sliding of the drawing pen, so that the situation that the drawn line is not distorted or irregular is ensured, and the subsequent comparison and measurement are avoided.

Inventors

  • MU XIN
  • YANG JINGWEN
  • XU LIANG

Assignees

  • 南通威朗运动用品有限公司

Dates

Publication Date
20260505
Application Date
20241230

Claims (7)

  1. 1. The auxiliary device for the tensile test of the vulcanized rubber dumbbell sample is characterized by comprising a mounting seat (1), wherein limiting blocks (2) are arranged on two sides of the top of the mounting seat (1), the limiting blocks (2) are isosceles trapezoid blocks, the broadsides of the limiting blocks face to the edge of the mounting seat (1) correspondingly, and clamping mechanisms are arranged on one sides, relatively close to the two limiting blocks (2); One side, far away from the other limiting block (2), of the top of one limiting block (2) is hinged with a cover plate (7), the top surface of the cover plate (7) is provided with scale marks, the other side of the cover plate (7) is fixed with the other limiting block (2) through a lock catch, a rectangular groove (8) is formed in the middle of the cover plate (7), sliding rails (9) are arranged on two sides of the rectangular groove (8), a strip-shaped plate (10) is arranged between the two sliding rails (9), the end part of the strip-shaped plate (10) is connected with a first sliding block (11), and the first sliding block (11) is slidably arranged on the sliding rails (9); A strip-shaped sliding groove (12) is formed in the strip-shaped plate (10), a second sliding block (13) is arranged in the sliding groove (12) in a sliding mode, and a painting brush (14) is arranged on the second sliding block (13).
  2. 2. The auxiliary device for tensile test of a vulcanized rubber dumbbell sample according to claim 1, wherein a connecting plate (16) is arranged at the top of one of the first sliding blocks (11), a locking bolt (17) is connected to the connecting plate (16) in a threaded manner, and the end part of the locking bolt (17) corresponds to the top surface of the cover plate (7).
  3. 3. The auxiliary device for the tensile test of the vulcanized rubber dumbbell sample, which is disclosed in claim 1, is characterized in that a cavity (3) is formed in one side, far away from each other, of the two limiting blocks (2), the clamping mechanism comprises two clamping plates (4) which are arranged oppositely, the clamping plates (4) are arranged between the two limiting blocks (2), a screw (5) is vertically arranged in the middle of one side, far away from each other, of the two clamping plates (4), the other end of the screw (5) penetrates through the limiting block (2), and the screw (5) is in threaded connection with the limiting block (2).
  4. 4. An auxiliary device for tensile test of a dumbbell specimen of vulcanized rubber as set forth in claim 3, wherein a handle is mounted on the end of the screw (5) remote from the clamping plate (4).
  5. 5. The auxiliary device for tensile test of a vulcanized rubber dumbbell sample according to claim 3, wherein guide shafts (6) are arranged in parallel on the side surfaces of the screw rods (5), one ends of the guide shafts (6) are fixed on the clamping plates (4), and the other ends of the guide shafts (6) penetrate through the limiting blocks (2) in a sliding mode.
  6. 6. The auxiliary device for tensile test of a vulcanized rubber dumbbell sample according to claim 1, wherein a through groove is formed in the middle of the second sliding block (13), the painting brush (14) is arranged in the through groove, and the painting brush (14) is in clearance fit with the inner wall of the through groove.
  7. 7. The auxiliary device for tensile test of a dumbbell specimen of vulcanized rubber according to claim 1, wherein mounting holes (15) are formed at corners of the mounting seat (1).

Description

Auxiliary device for tensile test of vulcanized rubber dumbbell sample Technical Field The utility model relates to the technical field of vulcanized rubber production, in particular to an auxiliary device for a tensile test of a dumbbell sample of vulcanized rubber. Background The tensile test of the dumbbell test specimen of the vulcanized rubber is an important test method for evaluating the mechanical properties of the vulcanized rubber material, namely, the vulcanized rubber is manufactured into the dumbbell test specimen according to standard requirements, and then the tensile test is carried out on the vulcanized rubber test specimen by using a universal material testing machine. Before the test, in order to compare the stretching condition, a marking is needed to be carried out at the center position of the sample, so that the stretching fracture position of the sample can be compared with the center position for reference, the subsequent measurement and calculation are convenient, the conventional marking mode is mostly to manually mark by using a measuring ruler, and the vulcanized rubber is soft in texture and easy to cause irregular distortion of the marking. Therefore, we propose an auxiliary device for tensile test of dumbbell specimen of vulcanized rubber to solve the above problems. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides an auxiliary device for a tensile test of a vulcanized rubber dumbbell sample. In order to achieve the aim, the utility model adopts the following technical scheme that the auxiliary device for the tensile test of the vulcanized rubber dumbbell sample is designed and comprises a mounting seat, wherein limiting blocks are arranged on two sides of the top of the mounting seat, the limiting blocks are isosceles trapezoid blocks, the wide sides of the limiting blocks face the edge of the mounting seat correspondingly, and a clamping mechanism is arranged on one side, relatively close to the two limiting blocks, of the limiting blocks; a cover plate is hinged to one side, far away from the other limiting block, of the top of one limiting block, scale marks are arranged on the top surface of the cover plate, the other side of the cover plate is fixed with the other limiting block through a lock catch, a rectangular groove is formed in the middle of the cover plate, sliding rails are arranged on two sides of the rectangular groove, a strip-shaped plate is arranged between the two sliding rails, the end part of the strip-shaped plate is connected with a first sliding block, and the first sliding block is slidably arranged on the sliding rails; A strip-shaped sliding groove is formed in the strip-shaped plate, a second sliding block is arranged in the sliding groove in a sliding mode, and a painting brush is arranged on the second sliding block. Preferably, a connecting plate is arranged at the top of one of the first sliding blocks, a locking bolt is connected to the connecting plate in a threaded mode, and the end portion of the locking bolt corresponds to the top surface of the cover plate. Preferably, the cavity has been seted up to one side that two stoppers kept away from relatively, and fixture includes two splint that set up relatively, and splint are located and set up between two stoppers, install the screw rod perpendicularly in one side middle part that two splint kept away from relatively, and the other end of screw rod runs through the stopper, and screw rod and stopper threaded connection. Preferably, a handle is mounted on the end of the screw remote from the clamping plate. Preferably, the side surface of the screw rod is provided with a guide shaft in parallel, one end of the guide shaft is fixed on the clamping plate, and the other end of the guide shaft penetrates through the limiting block in a sliding mode. Preferably, a through groove is formed in the middle of the second sliding block, the painting brush is arranged in the through groove, and the painting brush is in clearance fit with the inner wall of the through groove. Preferably, the corners of the mounting seat are provided with mounting holes. The design scheme provided by the utility model has the beneficial effects that in the application process: 1. The auxiliary device for the vulcanized rubber dumbbell sample tensile test is pressed and fixed on the sample between the limiting blocks through the downward pressing of the cover plate, and the scribing operation on the sample is realized by means of the linear sliding of the painting brush, so that the situation that the drawn lines are not distorted and irregular is ensured, and the subsequent comparison and measurement are avoided. 2. This auxiliary device for vulcanized rubber dumbbell sample tensile test passes through the relative extrusion of splint to sample both sides, cooperates the extrusion of apron, abundant assurance sample steadiness and stability on the mount pad, guarantee