CN221377458U

CN221377458U - Sample stretching tool

Info

Publication number: CN221377458U
Application number: CN202322943138.2U
Authority: CN
Inventors: 姜宏; 苗立杰; 李东阁
Original assignee: Harbin Dingyi Mechanical Equipment Manufacturing Co ltd
Current assignee: Harbin Dingyi Mechanical Equipment Manufacturing Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-07-19
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses a sample stretching tool, which relates to the technical field of stretching tools, in particular to a sample stretching tool, comprising a bottom plate, vertical plates fixed on two sides of the top of the bottom plate and a top plate fixed between the tops of the vertical plates on two sides, wherein a lower fixing part is arranged on the top plate, a connecting rod is slidably arranged in the top plate, a mounting cylinder is fixed at the bottom of the connecting rod, a guide plate is slidably arranged in the mounting cylinder, four circumferentially distributed guide frames are fixed at the bottom of the guide plate, the guide frames are slidably connected with bolts, a spring is arranged in the mounting cylinder and positioned at the top of the guide plate, and an upper fixing part is arranged at the lower end of the mounting cylinder.

Description

Sample stretching tool

Technical Field

The utility model relates to the technical field of stretching tools, in particular to a sample stretching tool.

Background

The connection performance of the anchoring plate and the steel bar is critical, and the guaranteed load of the tensile test is an arbitration method for the performance of the anchoring plate;

Through investigation publication (bulletin) number: CN210953611U discloses an anchor plate stretching tool, in this technology, an outer sleeve is connected to the bottom end of the stretching rod by screw thread, which can effectively protect the stretching rod from the clamping damage of the lower jaw, the outer sleeve can be replaced conveniently after damaged, and the stretching rod is not required to be replaced, thus greatly prolonging the service life of the stretching rod and reducing the test cost;

However, in the tensile test process, a large number of samples with different types and specifications are required to be tested, so that the fixing pieces of the samples are required to be replaced frequently; moreover, because the space inside the tool is narrow, the clamping distance meeting the requirements can be achieved only by the fact that the upper fixing piece and the lower fixing piece are almost close to each other, and when a worker wears gloves and manually installs and removes the fixing pieces in a narrow space, the fixing pieces are difficult to install.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a sample stretching tool which has the characteristics that an upper fixing piece and a lower fixing piece are convenient to be matched and replaced according to different sample workpieces, and the upper fixing piece and the lower fixing piece are firmly fixed after being installed and are not easy to loosen.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a sample tensile frock, includes the bottom plate, fixes the riser of bottom plate top both sides and the roof of both sides riser top between fixed, install down the mounting on the roof, the inside slidable mounting of roof has the connecting rod, the bottom of connecting rod is fixed with the installation section of thick bamboo, the inside slidable mounting of installation section of thick bamboo has the deflector, the bottom of deflector is fixed with four circumference distributed's leading truck, leading truck sliding connection has the bolt, the internally mounted of installation section of thick bamboo has the spring, and the spring is located the top of deflector, the mounting is installed to the lower extreme of installation section of thick bamboo;

The upper fixing piece comprises an installation sleeve sleeved on the periphery of the installation cylinder, an upper chuck fixed at the bottom of the installation sleeve and four jacks distributed circumferentially and formed in the inner wall of the installation sleeve.

Preferably, the bottom of the guide plate is fixed with a button head, the top of the upper chuck is provided with a through hole, and the radius of the through hole is larger than that of the button head.

Preferably, a positioning groove is formed in the top of the bottom plate.

Preferably, the lower fixing piece comprises a lower chuck arranged in the positioning groove and a positioning lug fixed at the bottom of the lower chuck.

Preferably, the two sides of the lower end of the inner part of the vertical plate are provided with pin holes, and the pin holes on the vertical plate on the two sides are inserted and provided with pin rods.

Preferably, the guide frame is internally provided with a chute, and the angle between the chute and the horizontal is forty-five degrees.

Preferably, the latch is located inside the inner wall of the mounting cylinder.

Advantageous effects

The utility model provides a sample stretching tool. Compared with the prior art, the method has the following beneficial effects:

(1) The button head is pushed upwards by extending fingers into the upper chuck, the guide frame is driven to move upwards by the button head through the guide plate, and the guide frame drives the bolt to retract inwards through the chute, so that the bolt is retracted into the mounting cylinder after being separated from the jack, the limit on the mounting sleeve is eliminated, and the upper fixing piece can be detached and taken down to be replaced respectively.

(2) After the installation sleeve of the upper fixing piece is sleeved on the installation cylinder, the guide plate is pushed by the rebound pressure of the spring to drive the guide frame, and the guide frame drives the bolt to extend outwards through the chute, so that the bolt is inserted into the jack, and then the upper fixing piece is fixed on the installation cylinder, so that the upper fixing piece is fixed firmly after being installed and is not easy to loosen.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a three-dimensional assembly structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of a mounting cylinder according to the present utility model;

in the figure: 1. a bottom plate; 2. a vertical plate; 3. a top plate; 4. a lower fixing member; 401. a lower chuck; 402. positioning lugs; 5. a connecting rod; 6. a mounting cylinder; 7. a guide plate; 8. a guide frame; 9. a chute; 10. a plug pin; 11. a spring; 12. a button head; 13. an upper fixing member; 131. a mounting sleeve; 132. an upper chuck; 133. a jack; 14. a positioning groove; 15. a pin hole; 16. a pin rod; 17. and (5) testing the workpiece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution for a sample stretching tool: the utility model provides a tensile frock of sample, includes bottom plate 1, fixes riser 2 and the roof 3 fixed between the riser 2 tops of both sides in bottom plate 1 top both sides, its characterized in that: the top plate 3 is provided with a lower fixing piece 4, the inside of the top plate 3 is slidably provided with a connecting rod 5, the bottom of the connecting rod 5 is fixedly provided with a mounting cylinder 6, the inside of the mounting cylinder 6 is slidably provided with a guide plate 7, the bottom of the guide plate 7 is fixedly provided with four circumferentially distributed guide frames 8, the guide frames 8 are slidably connected with bolts 10, the inside of the mounting cylinder 6 is provided with springs 11, the springs 11 are positioned at the top of the guide plate 7, and the lower end of the mounting cylinder 6 is provided with an upper fixing piece 13;

The upper fixing part 13 comprises an installation sleeve 131 sleeved on the periphery of the installation cylinder 6, an upper clamping head 132 fixed at the bottom of the installation sleeve 131 and four circumferentially distributed jacks 133 formed in the inner wall of the installation sleeve 131, in this embodiment, after the installation sleeve 131 of the upper fixing part 13 is sleeved on the installation cylinder 6, the guide plate 7 is pushed by the rebound pressure of the spring 11 to drive the guide frame 8, the guide frame 8 drives the bolt 10 to extend outwards through the chute 9, so that the bolt 10 is inserted into the jacks 133, and the upper fixing part 13 is fixed on the installation cylinder 6.

Specifically, the bottom of deflector 7 is fixed with button head 12, the through-hole has been seted up at the top of last chuck 132, and the radius of through-hole is greater than button head 12, in this embodiment, when dismantling upper mounting 13, the accessible stretches into the inside of upper chuck 132 and upwards presses button head 12, button head 12 drives guide frame 8 through deflector 7 and upwards moves, guide frame 8 passes through chute 9 and drives bolt 10 and inwards contracts, make bolt 10 break away from jack 133 after shrink to the inside of installation section of thick bamboo 6, thereby the restriction to installation cover 131 has been removed, and then upper mounting 13 dismantles and take off, change.

Specifically, the positioning groove 14 is formed in the top of the bottom plate 1, in this embodiment, before the lower fixing piece 4 is fixed, the lower fixing piece 4 is mounted in the positioning groove 14, so that the lower fixing piece 4 is positioned in the positioning groove, and the position deviation during fixing is avoided, and meanwhile, the lower fixing piece 4 is located right below the upper fixing piece 13.

Specifically, the lower fixing member 4 includes a lower chuck 401 mounted inside the positioning slot 14 and a positioning lug 402 fixed at the bottom of the lower chuck 401, in this embodiment, after the positioning lug 402 on the lower fixing member 4 is embedded into the positioning slot 14, the positioning lug 402 can be limited inside the positioning slot 14 through the mounting pin hole 15.

Specifically, the two sides of the lower end of the inside of the vertical plate 2 are provided with pin holes 15, the pin holes 15 on the vertical plates 2 on the two sides are inserted into the pin rods 16, in this embodiment, after the lower fixing piece 4 is mounted in the positioning groove 14, the pin rods 16 are inserted into the pin holes 15 on the vertical plates 2 on the two sides, so that the lower fixing piece 4 can be fixed in the positioning groove 14 on the bottom plate 1, and the subsequent disassembly and replacement of the lower fixing piece 4 are also facilitated.

Specifically, the inside of the guide frame 8 is provided with the chute 9, and the angle between the chute 9 and the horizontal is forty-five degrees, in this embodiment, when the guide frame 8 moves, the latch 10 can be driven to move vertically through the chute 9.

Specifically, the latch 10 is located inside the inner wall of the mounting cylinder 6, and in this embodiment, the latch 10 can move horizontally along the inner wall of the mounting cylinder 6 during movement, so that the latch can be smoothly inserted into or separated from the insertion hole 133.

The working principle and the using flow of the utility model are as follows: firstly, an upper fixing piece 13 is installed firstly, an installation sleeve 131 of the upper fixing piece 13 is sleeved on an installation cylinder 6, fingers extend into the upper clamping head 132 and press a button head 12 upwards, the button head 12 drives a guide frame 8 to move upwards through a guide plate 7, the guide frame 8 drives a bolt 10 to retract inwards through a chute 9, the bolt 10 is retracted into the installation cylinder 6, the installation sleeve 131 can be completely sleeved on the installation cylinder 6, and the insertion hole 133 is aligned with the bolt 10 by rotating; then the pressed button head 12 is released, the guide plate 7 is pushed by the rebound pressure of the spring 11 to drive the guide frame 8, the guide frame 8 drives the bolt 10 to extend outwards through the chute 9, the bolt 10 is inserted into the jack 133, and then the upper fixing piece 13 is fixed on the mounting cylinder 6; then, after the lower fixture 4 is mounted in the positioning groove 14, the pin rod 16 is inserted into the pin holes 15 on the two side vertical plates 2, so that the lower fixture 4 can be fixed in the positioning groove 14 on the bottom plate 1, and then the upper and lower ends of the sample workpiece 17 are respectively inserted into the upper fixture 13 and the lower fixture 4; finally, the tensile test is performed on the sample workpiece 17 by connecting the tensile device with the connecting rod 5.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tensile frock of sample, includes bottom plate (1), fixes riser (2) and both sides riser (2) fixed roof (3) between the top of bottom plate (1) top both sides, its characterized in that: install lower mounting (4) on roof (3), the inside slidable mounting of roof (3) has connecting rod (5), the bottom of connecting rod (5) is fixed with mounting cylinder (6), the inside slidable mounting of mounting cylinder (6) has deflector (7), the bottom of deflector (7) is fixed with four guide brackets (8) that circumference distributes, guide bracket (8) sliding connection has bolt (10), the internally mounted of mounting cylinder (6) has spring (11), and spring (11) are located the top of deflector (7), upper mounting (13) are installed to the lower extreme of mounting cylinder (6);

The upper fixing piece (13) comprises an installation sleeve (131) sleeved on the periphery of the installation cylinder (6), an upper chuck (132) fixed at the bottom of the installation sleeve (131) and four jacks (133) distributed circumferentially and formed in the inner wall of the installation sleeve (131).

2. The specimen stretching tool according to claim 1, wherein: the bottom of deflector (7) is fixed with button head (12), the through-hole has been seted up at the top of last chuck (132), and the radius of through-hole is greater than button head (12).

3. The specimen stretching tool according to claim 1, wherein: a positioning groove (14) is formed in the top of the bottom plate (1).

4. The specimen stretching tool according to claim 1, wherein: the lower fixing piece (4) comprises a lower chuck (401) arranged in the positioning groove (14) and a positioning lug (402) fixed at the bottom of the lower chuck (401).

5. The specimen stretching tool according to claim 1, wherein: pin holes (15) are formed in two sides of the lower end of the inside of the vertical plate (2), and pin rods (16) are inserted into the pin holes (15) in the vertical plate (2) on two sides.

6. The specimen stretching tool according to claim 1, wherein: the inside of leading truck (8) has seted up chute (9), and the angle between chute (9) and the level is forty-five degrees.

7. The specimen stretching tool according to claim 1, wherein: the bolt (10) is positioned inside the inner wall of the mounting cylinder (6).