CN218067417U

CN218067417U - Tensile testing device for glass fiber reinforced plastic pipeline

Info

Publication number: CN218067417U
Application number: CN202220806640.1U
Authority: CN
Inventors: 靳斌; 和珍珍
Original assignee: Qinyang Dongxing Industrial Co ltd
Current assignee: Qinyang Dongxing Industrial Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-12-16
Anticipated expiration: 2032-04-08

Abstract

The utility model provides a be used for FRP pipe way tensile test device, relate to FRP pipe way test technical field, this be used for FRP pipe way tensile test device include two symmetrical setting be used for the clamping device at clamping glass pipeline both ends, and be used for making two clamping device be close to each other or the telecontrol equipment who keeps away from, clamping device includes the jackshaft, articulated on the jackshaft have a first connecting rod group, have three first connecting rods along the jackshaft circumferencial direction array in the first connecting rod group at least, there are two sets of first connecting rod group along jackshaft length direction array, the outside of jackshaft is provided with the sleeve; because the inclined direction of first connecting rod and second connecting rod all is along the direction of insertion of FRP pipe, the resistance that consequently receives is little, conveniently inserts, and when tensile, because FRP pipe's motion trend is against the inclined direction of first connecting rod and second connecting rod, the resistance that consequently receives is big, avoids tensile in-process FRP pipe to slide, consequently conveniently uses.

Description

Tensile testing device for glass fiber reinforced plastic pipeline

Technical Field

The utility model relates to a FRP pipe says test technical field specifically is used for FRP pipe says tensile test device.

Background

As the industrial application of the glass fiber reinforced plastic material is more and more extensive, and the requirement on the yield is more and more great, the mechanical property test can be simultaneously carried out in the production process of the glass fiber reinforced plastic, and the tensile test is one of the test items of the glass fiber reinforced plastic product.

In chinese patent No. CN212964349U, a fixture for tensile testing of glass fiber reinforced plastic pipeline is disclosed, which comprises two main bodies, wherein the main bodies comprise: the first elastic shaft sleeve is sleeved on the outer side of the end part of the glass fiber reinforced plastic pipeline along the axis direction of the glass fiber reinforced plastic pipeline, and the outer diameter of the first elastic shaft sleeve is enlarged along the stretching direction; the sleeve can be movably sleeved outside the first elastic shaft sleeve, the inner diameter of the sleeve is enlarged along the stretching direction, and the minimum inner diameter of the sleeve is smaller than the maximum outer diameter of the first elastic shaft sleeve; the second elastic shaft sleeve comprises a first part and a first flange, the first part can be sleeved on the inner side of the end part of the glass fiber reinforced plastic pipeline along the axis direction of the glass fiber reinforced plastic pipeline, the first flange is connected with the first part, the first flange is used for being fixedly connected with the sleeve, and the inner diameter of the first part is reduced along the stretching direction; and the inner support shaft can be movably sleeved in the second elastic shaft sleeve, the outer diameter of the inner support shaft is reduced along the stretching direction, and the maximum outer diameter of the inner support shaft is larger than the minimum inner diameter of the first part of the second elastic shaft sleeve. The scheme does not need to destroy the sample organization structure of the glass fiber reinforced plastic pipeline, and improves the real reliability of the detection data.

However, the above technical solutions have the following drawbacks, which are troublesome to install and inconvenient to disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for FRP pipe way tensile test device, the anchor clamps that aim at solving FRP pipe way tensile test among the prior art are more troublesome when the installation, and the problem of inconvenient dismantlement.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the device for tensile testing of the glass fiber reinforced plastic pipeline comprises two symmetrically arranged clamping devices used for clamping two ends of the glass fiber reinforced plastic pipeline and a moving device used for enabling the two clamping devices to be close to or far away from each other, wherein each clamping device comprises an intermediate shaft, a first connecting rod group is hinged to the intermediate shaft, at least three first connecting rods arrayed in the circumferential direction of the intermediate shaft are arranged in the first connecting rod group, at least two groups of the first connecting rods are arrayed in the length direction of the intermediate shaft, sleeves are arranged outside the intermediate shaft, second connecting rods are hinged to positions, corresponding to the first connecting rods, of the inner wall of each sleeve, friction blocks are arranged at one ends, close to each other, of the first connecting rods and the second connecting rods, first elastic pieces are connected between the first connecting rods and the intermediate shaft, and second elastic pieces are connected between the second connecting rods and the sleeves.

The technical scheme of the utility model is that, first elastic component is the spring leaf.

The technical scheme of the utility model is that, the second elastic component is the spring leaf.

The utility model discloses a further technical scheme does, every row all articulate between the first connecting rod has the head rod, every row all articulate between the second connecting rod has the second connecting rod.

In order to make the utility model discloses have the every first connecting rod of row of convenient control and second connecting rod pivoted function, the utility model discloses a further technical scheme does, all articulated on head rod and the second connecting rod have the third connecting rod, articulated third connecting rod is articulated mutually on articulated third connecting rod and the second connecting rod on the head rod.

In order to make the utility model discloses have all first connecting rods of simultaneous control and second connecting rod pivoted effect, the utility model discloses a further technical scheme does, two the articulated department of third connecting rod articulates there is the shift ring.

The utility model discloses a further technical scheme does, two one side of the side that the clutch blocks contacted is provided with symmetrical inclined plane.

The further technical scheme of the utility model is, two be provided with the friction line on the side that the clutch blocks contacted.

The utility model has the advantages that:

1. the utility model discloses during the use, put glass steel tube's pipe wall between two clutch blocks, because the incline direction of first connecting rod and second connecting rod all is along glass steel tube's direction of insertion, the resistance that consequently receives is little, conveniently inserts, when tensile, because glass steel tube's movement trend is against the incline direction of first connecting rod and second connecting rod, the resistance that consequently receives is big, avoids tensile in-process glass steel tube to slide, consequently conveniently uses.

2. The utility model discloses during the use, it is rotatory to come all first connecting rods of active control and second connecting rod through the shift ring to the shell of conveniently installing is dismantled.

Drawings

Fig. 1 is a schematic diagram of the internal structure of the embodiment of the present invention.

Fig. 2 is a front view of the interior of a particular embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. an intermediate shaft; 2. a first link; 3. a sleeve; 4. a second link; 5. a friction block; 6. a first elastic member; 7. a second elastic member; 8. a first connecting rod; 9. a second connecting rod; 10. a third link; 11. the ring is moved.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1-3, the tensile testing device for the glass fiber reinforced plastic pipeline comprises two symmetrically arranged clamping devices for clamping two ends of the glass fiber reinforced plastic pipeline and a moving device for enabling the two clamping devices to approach or separate from each other, wherein the clamping devices comprise an intermediate shaft 1, a first connecting rod 2 group is hinged on the intermediate shaft 1, at least three first connecting rods 2 arrayed along the circumferential direction of the intermediate shaft 1 are arranged in the first connecting rod 2 group, at least two first connecting rod 2 groups are arrayed along the length direction of the intermediate shaft 1, a sleeve 3 is arranged outside the intermediate shaft 1, a second connecting rod 4 is hinged on the inner wall of the sleeve 3 at a position corresponding to the first connecting rod 2, friction blocks 5 are arranged at one ends, close to each other, of the first connecting rod 2 and the intermediate shaft 1, a first elastic piece 6 is connected between the first connecting rod 2 and the intermediate shaft 1, and a second elastic piece 7 is connected between the second connecting rod 4 and the sleeve 3.

In this specific embodiment, the tube wall of the glass fiber reinforced plastic tube is placed between the two friction blocks 5, and the inclined directions of the first connecting rod 2 and the second connecting rod 4 are along the inserting direction of the glass fiber reinforced plastic tube, so that the received resistance is small, and the glass fiber reinforced plastic tube is convenient to insert.

Preferably, the first elastic member 6 is a spring plate.

Preferably, the second elastic member 7 is a spring plate.

Furthermore, a first connecting rod 8 is hinged between the first connecting rods 2 in each row, and a second connecting rod 9 is hinged between the second connecting rods 4 in each row.

Further, a third connecting rod 10 is hinged to each of the first connecting rod 8 and the second connecting rod 9, and the third connecting rod 10 hinged to the first connecting rod 8 is hinged to the third connecting rod 10 hinged to the second connecting rod 9.

Furthermore, the hinged joint of the two third connecting rods 10 is hinged with a moving ring 11, the moving ring 11 is pushed to rotate the third connecting rods 10, so that the first connecting rods 8 and the second connecting rods 9 move, all the first connecting rods 2 and all the second connecting rods 4 are actively controlled to rotate through the moving ring 11, and therefore the mounting shell is convenient to dismount.

Preferably, one side of the side surface of the two friction blocks 5 contacting each other is provided with a symmetrical inclined surface.

Preferably, friction lines are arranged on the contact side surfaces of the two friction blocks 5.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A clamping device for FRP pipe way tensile test, its characterized in that, including two symmetries setting be used for pressing from both sides the clamping device at tight FRP pipe way both ends and be used for making two clamping device be close to each other or the telecontrol equipment who keeps away from, clamping device includes jackshaft (1), articulated on jackshaft (1) have first connecting rod (2) group, at least three first connecting rod (2) along jackshaft (1) circumferencial direction array in first connecting rod (2) group, first connecting rod (2) group has at least two sets ofly along jackshaft (1) length direction array, the outside of jackshaft (1) is provided with sleeve (3), the position that the inner wall of sleeve (3) corresponds first connecting rod (2) articulates there is second connecting rod (4), the one end that first connecting rod (2) and second connecting rod (4) are close to each other all has friction block (5), be connected with first elastic component (6) between first connecting rod (2) and jackshaft (1), be connected with second elastic component (7) between second connecting rod (4) and sleeve (3).

2. The tensile testing apparatus for FRP pipes as claimed in claim 1 wherein the first resilient member (6) is a leaf spring.

3. The tensile testing apparatus for FRP pipes as claimed in claim 1 wherein the second resilient member (7) is a leaf spring.

4. The tensile testing device for the FRP pipes of claim 3, wherein a first connecting rod (8) is hinged between each row of the first connecting rods (2), and a second connecting rod (9) is hinged between each row of the second connecting rods (4).

5. The device for testing the tensile strength of the FRP pipe according to claim 4, wherein the first connecting rod (8) and the second connecting rod (9) are hinged with third connecting rods (10), and the third connecting rods (10) hinged on the first connecting rod (8) are hinged with the third connecting rods (10) hinged on the second connecting rod (9).

6. The tensile testing device for glass reinforced plastic pipelines according to claim 5, wherein the hinge joint of the two third connecting rods (10) is hinged with a moving ring (11).

7. The tensile testing device for FRP pipes as defined in any of claims 1-6 wherein one side of the side where the two friction blocks (5) meet is provided with a symmetrical bevel.

8. The tensile testing device for the FRP pipelines according to claim 7, wherein the side surfaces of the two friction blocks (5) which are contacted with each other are provided with friction lines.