CN210893591U

CN210893591U - Radial rigidity test device for prestressed metal corrugated pipe

Info

Publication number: CN210893591U
Application number: CN201921471235.3U
Authority: CN
Inventors: 刘秀云; 李静; 苗灏; 王磊; 郭慧丽
Original assignee: Hefei Gongda Engineering Testing Co ltd
Current assignee: Hefei Gongda Engineering Testing Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-30
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a radial rigidity test device of prestressing force corrugated metal pipe, comprising a base plate, bottom plate top central point put the department and open flutedly, the inside embedding corrugated metal pipe of recess anchor clamps down, corrugated metal pipe under anchor clamps below correspond position department with the recess and be equipped with the fixture block, the fixture block card go into the inside fixed position of recess, the recess all around all be equipped with linear type scale mark and extend to bottom plate edge position department all around, the bottom plate rear be equipped with the connecting rod, connecting rod top be equipped with the rotation gag lever post, rotation gag lever post one end rotate with the connecting rod top and be connected, the rotation gag lever post other end be equipped with spacing through-hole. The device improves current detection device, and in the testing process of being convenient for, simple convenient fixes and the centering sample and anchor clamps, reduces deviation and the potential safety hazard in the testing process.

Description

Radial rigidity test device for prestressed metal corrugated pipe

Technical Field

The utility model relates to a construction check out test set technical field, more specifically says, relates to a radial rigidity test device of prestressing force corrugated metal pipe.

Background

This testing device is applicable to the radial rigidity that detects the corrugated metal pipe for prestressed concrete, is applicable to and is used for the tubular metal resonator of preformed hole in the construction of post-tensioned prestressing concrete structure with the folding bite of zinc-plated or non-zinc-plated low carbon steel spiral, and current above-mentioned testing device is generally pressed from both sides the dress through controlling two rectangle anchor clamps to waiting to detect the pipe fitting, has following problem: 1. the existing clamp cannot stably stabilize and center the pipe fitting, in the test process, the clamp needs to be centered and fixed manually for many times, deviation easily occurs in the test process, and the test result is influenced. 2. In the test process, due to the fact that the force application of the pressure head above the clamp is large, when the clamp is centered and fixed, certain potential safety hazards exist for operating personnel.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a radial rigidity test device of prestressing force corrugated metal pipe, the device improve current detection device, and in the test process of being convenient for, simple convenient fixes and the centering sample and anchor clamps, reduces deviation and the potential safety hazard in the test process.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a radial rigidity test device of prestressing force corrugated metal pipe, comprising a base plate, bottom plate top central point put the department and open flutedly, the inside embedding corrugated metal pipe of recess anchor clamps down, corrugated metal pipe down anchor clamps below correspond position department with the recess and be equipped with the fixture block, the fixture block card go into the inside fixed position of recess, the recess all around all directions all be equipped with linear type scale mark and extend to the marginal position department all around of bottom plate, the bottom plate rear be equipped with the connecting rod, connecting rod top be equipped with and rotate the gag lever post, rotation gag lever post one end and connecting rod top rotate and be connected, the rotation gag lever post other end be equipped with spacing through-hole, spacing through-hole inside pass the pressure head that has the scale, pressure head below be fixed with corrugated metal pipe and go up anchor clamps between and corrugated metal pipe on anchor clamps and all process the shape and metal bellows contact position department and all take shape and metal bellows The outer surface of the corrugated pipe is provided with a matched cambered surface.

Furthermore, the sections of the groove and the fixture block are in the same regular polygon shape.

Furthermore, the diameter of the limiting through hole is 3-5 mm larger than that of the pressure head.

Compared with the prior art, the utility model has the advantages that:

the utility model discloses the device can realize fixed to corrugated metal pipe's centering when pressing from both sides the dress, guarantees follow-up pressure test quality, in whole test process, has removed the operation of prior art test procedure in to corrugated metal pipe location repeatedly from, guarantees tester safety.

Drawings

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

in the figure: 1. a base plate; 2. a groove; 3. scale lines; 4. a limiting through hole; 5. rotating the limiting rod; 6. a connecting rod; 7. a pressure head; 8. an upper clamp of the metal corrugated pipe; 9. a metal corrugated pipe lower clamp; 10. and (7) clamping blocks.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the utility model easy to understand and understand, the utility model is further explained by combining with the specific figures.

As shown in figure 1, a radial rigidity test device for a prestressed metal corrugated pipe comprises a bottom plate 1, a groove 2 is formed in the central position above the bottom plate 1, a metal corrugated pipe lower clamp 9 is embedded into the groove 2, a clamping block 10 is arranged at the position, corresponding to the groove 2, below the metal corrugated pipe lower clamp 9, the clamping block 10 is clamped into a fixed position inside the groove 2, linear scale marks 3 are arranged in the front, back, left and right directions of the groove 2 and extend to the peripheral edge position of the bottom plate, a connecting rod 6 is arranged behind the bottom plate 1, a rotary limiting rod 5 is arranged above the connecting rod 6, one end of the rotary limiting rod 5 is rotatably connected with the upper portion of the connecting rod 6, a limiting through hole 4 is formed in the other end of the rotary limiting rod 5, a pressure head 7 with scales penetrates through the inside of the limiting through hole 4, a metal corrugated pipe upper clamp 8 is fixed below the pressure head 7, a metal corrugated pipe is clamped between the metal corrugated pipe lower clamp 9 The cambered surfaces matched with the surfaces, the sections of the groove 2 and the clamping block 10 are the same regular polygon shape, and the diameter of the limiting through hole 4 is larger than that of the pressure head 7 by 3 millimeters.

During practical use, clamp metal bellows lower fixture 9 inside the recess 2 of bottom plate 1 upper surface fixed, then pass pressure head 7 inside spacing through-hole 4, place metal bellows (this type of pipe fitting generally has multiple size model, for example standard cylinder diameter is 50MM or 100MM, oval size is 60X 20MM) between anchor clamps, through the adjustment of upper and lower anchor clamps fixed and observe the scale mark on bottom plate 1 in the testing process, make metal bellows centering fixed position, exert certain pressure value to pressure head 7 through mechanical equipment, according to the scale on pressure head 7, measure the deflection of metal bellows, strength measures radial rigidity.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a radial rigidity test device of prestressing force metal bellows which characterized in that: comprises a bottom plate, a groove is arranged at the center position above the bottom plate, a lower clamp of the metal corrugated pipe is embedded in the groove, a clamping block is arranged at the position corresponding to the groove below the lower clamp of the metal corrugated pipe, the clamping block is clamped at a fixed position in the groove, the grooves are provided with linear scale marks in the front, back, left and right directions and extend to the peripheral edge of the bottom plate, a connecting rod is arranged at the rear part of the bottom plate, a rotary limiting rod is arranged above the connecting rod, one end of the rotary limiting rod is rotatably connected with the upper part of the connecting rod, the other end of the rotary limiting rod is provided with a limiting through hole, a pressure head with scales passes through the limiting through hole, and an upper metal corrugated pipe clamp is fixed below the pressure head, a metal corrugated pipe is clamped between the lower metal corrugated pipe clamp and the upper metal corrugated pipe clamp, and cambered surfaces matched with the outer surface of the metal corrugated pipe in shapes are machined at the contact positions of the lower metal corrugated pipe clamp and the upper metal corrugated pipe clamp.

2. The radial rigidity test device for the prestressed metal corrugated pipe according to claim 1, wherein: the cross sections of the groove and the clamping block are in the same regular polygon shape.

3. The radial rigidity test device for the prestressed metal corrugated pipe according to claim 1, wherein: the diameter of the limiting through hole is 3-5 mm larger than that of the pressure head.