CN209945890U

CN209945890U - Tensile strength testing device for physical teaching test

Info

Publication number: CN209945890U
Application number: CN201920541334.8U
Authority: CN
Inventors: 管爱婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-20
Filing date: 2019-04-20
Publication date: 2020-01-14
Anticipated expiration: 2029-04-20

Abstract

The utility model relates to the technical field of teaching experiments, and discloses a tensile strength testing device for physical teaching experiments, which solves the problem of poor teaching effect of self tensile force testing of objects at present, and comprises a base, wherein a frame is arranged on the upper part of the base, both sides of the lower end of the frame are fixedly connected with the upper end of the base through supporting rods, one end inside the frame is fixedly connected with a first clamping mechanism, the other end inside the frame is provided with a second clamping mechanism, and one end of the second clamping mechanism is fixedly connected with a first connecting plate; the utility model has simple structure and convenient operation, can visually find out the change of an object in the stretching process, and is beneficial to enhancing the teaching effect of stretching force learning; through first clamping mechanism and second clamping mechanism's setting, can carry out the centre gripping to the object that awaits measuring of different diameters size and fix, and under the effect of sawtooth, further strengthened and pressed from both sides tight steadiness, effectually prevent that the test procedure from taking place not hard up.

Description

Tensile strength testing device for physical teaching test

Technical Field

The utility model belongs to the technical field of the teaching experiment, specifically be a tensile strength testing arrangement for physical teaching is experimental.

Background

In current physics study, it is comparatively single usually to tensile experimental apparatus, only carry out gravity tensile test through the spring tensiometer, to the unable test of the tensile strength of some objects self, can't embody directly perceivedly in the experiment to the teaching effect of tensile force, the teaching effect is relatively poor, consequently, needs design a tensile strength testing arrangement for physical teaching is experimental.

Disclosure of Invention

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a tensile strength testing arrangement is used in physics teaching experiment, the effectual relatively poor problem of teaching effect to object self tensile force test of having solved at present.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tensile strength testing arrangement for physical teaching is experimental, the on-line screen storage device comprises a base, base upper portion is provided with the frame, frame lower extreme both sides all are through branch and base upper end fixed connection, the first fixture of the inboard one end fixedly connected with of frame, the inboard other end of frame is provided with second fixture, the first connecting plate of second fixture one end fixedly connected with, first connecting plate one end both sides all are provided with the guide arm, and the guide arm runs through and extends to frame one side, first connecting plate one end is kept away from to the guide arm is provided with the second connecting plate, the cylinder is located between frame and the second connecting plate, and the cylinder both ends are connected with frame and second.

Preferably, first fixture and second fixture all include U type piece, screw rod, dwang, clamp splice, spout, buffer board, spring, connecting seat and connecting rod, U type piece one end is run through and is provided with the screw rod, and screw rod one end is provided with the dwang, screw rod upper end symmetry is provided with the clamp splice, the spout has been seted up to the inboard lower part of U type piece, the inside sliding connection of spout has the buffer board, a buffer board side passes through spring coupling with U type piece inner wall, the buffer board is kept away from spring one side end central authorities and is provided with the connecting seat, it is articulated through the connecting rod between connecting seat and the clamp splice.

Preferably, the screw surface threads are positive and negative threads, and the screw penetrates and extends to one side of the frame.

Preferably, the upper part of one side end of the clamping block is provided with a saw tooth for increasing friction.

Preferably, a guide hole is formed in one side, opposite to the second clamping mechanism, of the frame, and the guide rod is located in the guide hole.

Preferably, one side end of the frame is provided with a waist-shaped hole corresponding to the second clamping mechanism relative to the outside of the screw rod.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model has simple structure and convenient operation, can visually check the change of an object in the stretching process, and is beneficial to enhancing the teaching effect of stretching force learning;

(2) through the arrangement of the structure, objects to be tested with different diameters can be clamped and fixed, the clamping stability is further enhanced under the action of the sawteeth, and the looseness of the test process is effectively prevented;

(3) the first clamping mechanism and the second clamping mechanism can play a role in buffering in the clamping process through the arrangement of the buffer plate, the spring, the connecting seat and the connecting rod.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a schematic structural view of the sliding chute of the present invention;

in the figure: 1. a base; 2. a frame; 3. a strut; 4. a first clamping mechanism; 5. a second clamping mechanism; 6. a first connecting plate; 7. a guide bar; 8. a second connecting plate; 9. a cylinder; 10. a U-shaped block; 11. a screw; 12. rotating the rod; 13. a clamping block; 14. a chute; 15. a buffer plate; 16. a spring; 17. a connecting seat; 18. a connecting rod; 19. saw teeth; 20. a kidney-shaped hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, 2 and 3, the utility model comprises a base 1, a frame 2 is arranged on the upper portion of the base 1, both sides of the lower end of the frame 2 are fixedly connected with the upper end of the base 1 through a support rod 3, one end of the inner side of the frame 2 is fixedly connected with a first clamping mechanism 4, the other end of the inner side of the frame 2 is provided with a second clamping mechanism 5, an object is arranged between the first clamping mechanism 4 and the second clamping mechanism 5 for fixing during testing, one end of the second clamping mechanism 5 is fixedly connected with a first connecting plate 6, both sides of one end of the first connecting plate 6 are provided with guide rods 7, the guide rods 7 extend to one side of the frame 2 in a penetrating way, one end of the guide rods 7 far away from the first connecting plate 6 is provided with a second connecting plate 8, an air cylinder 9 is arranged between the frame 2 and the second connecting plate 8, and, the cylinder 9 stretches out to drive the second connecting plate 8 to move, so that the guide rod 7 pulls the first connecting plate 6, the second clamping mechanism 5 is driven to move transversely, and the object is gradually stretched.

In the second embodiment, as shown in fig. 2 and 3, each of the first clamping mechanism 4 and the second clamping mechanism 5 includes a U-shaped block 10, a screw 11, a rotating rod 12, a clamping block 13, a sliding slot 14, a buffer plate 15, a spring 16, a connecting seat 17 and a connecting rod 18, the screw 11 is disposed at one end of the U-shaped block 10, the rotating rod 12 is disposed at one end of the screw 11 to facilitate the application of force to rotate the screw 11, so as to drive the clamping block 13 to move oppositely to clamp and fix an object, the clamping blocks 13 are symmetrically disposed at the upper end of the screw 11, the sliding slot 14 is disposed at the lower portion of the inner side of the U-shaped block 10, the buffer plate 15 is slidably connected inside the sliding slot 14, one side end of the buffer plate 15 is connected with the inner wall of the U-shaped block 10 through the spring 16, the connecting seat 17 is disposed at the center of one side end of the buffer plate 15 away from the spring 16, so that the first clamping mechanism 4 and the second clamping mechanism 5 can play a role of buffering in the clamping process.

In the third embodiment, as shown in fig. 2 and 3, the surface threads of the screw 11 are positive and negative threads, and the screw 11 extends through one side of the frame 2, so that the clamping blocks 13 can move towards each other to clamp or expand through the positive and negative threads.

In the fourth embodiment, as shown in fig. 2 and 3, the upper portion of one side end of the clamping block 13 is provided with saw teeth 19 for increasing friction.

In the fifth embodiment, as shown in fig. 2, a guide hole is formed in one side of the frame 2 opposite to the second clamping mechanism 5, and the guide rod 7 is located in the guide hole, so that the motion stability during the tensile test can be conveniently ensured.

In the sixth embodiment, as shown in fig. 2, a waist-shaped hole 20 is formed at one side end of the frame 2 corresponding to the exterior of the screw 11 of the second clamping mechanism 5, so that the screw 11 on the second clamping mechanism 5 can move along the waist-shaped hole 20.

The working principle is as follows: when the device is used, the device is arranged on a platform, then an object to be tested is arranged between the first clamping mechanism 4 and the second clamping mechanism 5, the screw rods 11 are driven to rotate through the rotating rods 12, so that the clamping blocks 13 move outwards in an opposite direction, the object is arranged on the inner sides of the clamping blocks 13, then the screw rods 11 are rotated in a reverse direction, so that the clamping blocks 13 move in an opposite direction to clamp the object, the object to be tested with different diameters can be clamped and fixed through the arrangement of the structure, the clamping stability is further enhanced under the action of the sawteeth 19, and the looseness of the test process is effectively prevented; after the object is clamped, the cylinder 9 gradually extends out, the second clamping mechanism 5 is pulled to move transversely, force is applied to the object, the moving distance of the second clamping mechanism 5 and the length of the object after deformation are recorded respectively, and the size of a stretching force is calculated, so that the tensile strength of the object is calculated.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tensile strength testing arrangement for physical teaching is experimental, includes base (1), its characterized in that: base (1) upper portion is provided with frame (2), frame (2) lower extreme both sides all are through branch (3) and base (1) upper end fixed connection, the first fixture of inboard one end fixedly connected with (4) of frame (2), the inboard other end of frame (2) is provided with second fixture (5), the first connecting plate (6) of second fixture (5) one end fixedly connected with, first connecting plate (6) one end both sides all are provided with guide arm (7), and guide arm (7) run through and extend to frame (2) one side, first connecting plate (6) one end is kept away from in guide arm (7) is provided with second connecting plate (8), cylinder (9) are located between frame (2) and second connecting plate (8), and cylinder (9) both ends are connected with frame (2) and second connecting plate (8) respectively.

2. The tensile strength testing device for physics teaching experiments according to claim 1, characterized in that: the first clamping mechanism (4) and the second clamping mechanism (5) respectively comprise a U-shaped block (10), a screw rod (11), a rotating rod (12), a clamping block (13), a sliding groove (14), a buffer plate (15), a spring (16), a connecting seat (17) and a connecting rod (18), the screw rod (11) is arranged at one end of the U-shaped block (10) in a penetrating way, and screw rod (11) one end is provided with dwang (12), screw rod (11) upper end symmetry is provided with clamp splice (13), spout (14) have been seted up to U type piece (10) inboard lower part, spout (14) inside sliding connection has buffer board (15), one side of buffer board (15) passes through spring (16) with U type piece (10) inner wall to be connected, spring (16) is kept away from in buffer board (15) one side end central authorities are provided with connecting seat (17), articulate through connecting rod (18) between connecting seat (17) and clamp splice (13).

3. The tensile strength testing device for physics teaching experiments according to claim 2, characterized in that: the surface threads of the screw rods (11) are positive and negative threads, and the screw rods (11) penetrate and extend to one side of the frame (2).

4. The tensile strength testing device for physics teaching experiments according to claim 2, characterized in that: the upper part of one side end of the clamping block (13) is provided with saw teeth (19) for increasing friction.

5. The tensile strength testing device for physics teaching experiments according to claim 1, characterized in that: a guide hole is formed in one side, opposite to the second clamping mechanism (5), of the frame (2), and the guide rod (7) is located in the guide hole.

6. The tensile strength testing apparatus for physical teaching experiments according to claim 1 or 2, characterized in that: one side end of the frame (2) is provided with a waist-shaped hole (20) corresponding to the second clamping mechanism (5) relative to the outer part of the screw rod (11).