CN112255093A

CN112255093A - Expansion joint tensile test device

Info

Publication number: CN112255093A
Application number: CN202010903397.0A
Authority: CN
Inventors: 张爱凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-01-22

Abstract

The invention relates to the technical field of expansion joint detection devices, in particular to an expansion joint tensile test device which comprises an installation base, wherein an expansion joint is arranged at the upper end of the installation base, pipe orifices are fixedly connected at the left end and the right end of the expansion joint, frame bodies are fixedly connected at the left end and the right end of the installation base, an installation plate is fixedly connected between the two frame bodies, a slotted hole is formed in the upper end of the installation plate, an elastic part is fixedly connected to the inner wall of one end, close to the expansion joint, of the two frame bodies, a rectangular plate is fixedly connected at one end, close to the expansion joint, of the elastic part, a clamping plate is fixedly connected to the rectangular plate, the clamping plate is matched with the pipe orifices in shape, side rods are hinged to the upper end of the rectangular plate through a second hinge, the two side rods are rotatably connected through a first hinge, and a sliding, the sliding rod is connected with the slotted hole in a sliding manner.

Description

Expansion joint tensile test device

Technical Field

The invention relates to the technical field of expansion joint detection devices, in particular to an expansion joint tensile test device.

Background

Brief introduction: an expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. It is composed of bellows (an elastic element) and its working body, end pipe, support, flange and guide pipe. The expansion joint welded on the shell of the fixed tube-plate heat exchanger has high axial flexibility and easy deformation, can compensate the thermal expansion difference generated by different wall temperatures of the tube and the shell, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joint has a plurality of types, and commonly used structures such as a wave shape, ring plate welding, a clamping shell type and the like, wherein the wave shape expansion joint is most widely applied, the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions, and the effective expansion deformation of a working main body corrugated pipe is utilized to absorb the size change of pipelines, conduits, containers and the like caused by expansion with heat and contraction with cold or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. And can also be used for noise reduction and vibration reduction. Has wide application in modern industry. In order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, an expansion joint is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced. The tensile experimental apparatus of the existing expansion joint has the disadvantages of complicated measuring steps, long testing process time and very low detection efficiency during measurement.

Disclosure of Invention

In order to solve the problems, the invention provides an expansion joint tensile test device.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an expansion joint tensile test device, includes the installation base, installation base upper end be equipped with the expansion joint, the expansion joint control the equal fixedly connected with mouth of pipe in both ends, the installation base control the equal fixedly connected with support body in both ends, two the support body between fixedly connected with mounting panel, mounting panel upper end chisel and have a slotted hole, two the support body one end inner wall fixedly connected with elastic component that is close to each other, the elastic component be close to the one end fixedly connected with rectangular plate of expansion joint, the rectangular plate on fixedly connected with cardboard, cardboard and orificial shape match each other, rectangular plate upper end articulated through the second hinge have a side lever, two the side lever rotate through first hinge and connect, first hinge upper end fixedly connected with slide bar, slide bar and slotted hole sliding connection.

As optimization, the inner end wall of the slotted hole is fixedly connected with an annular protective sleeve, the annular protective sleeve is matched with the sliding rod, the surface of the sliding rod is abraded in the process that the sliding rod vertically moves up and down along the slotted hole, and the annular protective sleeve plays a certain degree of protection effect on the sliding rod.

As optimization, the upper end of the sliding rod is fixedly connected with the pressing plate, so that the contact area between the sliding rod and a worker or a pressure manipulator is increased, and the sliding rod is protected to a certain extent.

Preferably, the lower end of the rectangular plate is fixedly connected with a sliding plate, sliding grooves are formed in the left end and the right end of the mounting base, the sliding plate is matched with the sliding grooves, and the moving track of the sliding plate can be limited under the mutual matching action of the sliding grooves and the sliding plate, so that the stretching direction of the expansion joint is limited.

As optimization, the installation base front and back both ends wall all be carved with the scale mark, the zero point position of scale mark flush with the inner end wall of spout, the biggest tensile volume of the expansion joint of the detection personnel of being convenient for detects and the record, makes things convenient for the staff to the accurate measurement of the biggest tensile volume of expansion joint.

The whole beneficial effect of this scheme is: the expansion joint tensile test device can perform sampling test on the tensile property of the expansion joint after production is completed, and compared with the prior art, the expansion joint tensile test device can simplify the measurement steps, reduce the measurement difficulty and improve the measurement efficiency of workers; the inner end wall of the slotted hole is fixedly connected with an annular protective sleeve, the annular protective sleeve is matched with the sliding rod, the surface of the sliding rod is abraded in the process that the sliding rod vertically moves up and down along the slotted hole, and the annular protective sleeve plays a certain protection role on the sliding rod; the upper end of the sliding rod is fixedly connected with a pressing plate, so that the contact area of the sliding rod and a worker or a pressure manipulator is increased, and the sliding rod is protected to a certain extent; the lower end of the rectangular plate is fixedly connected with a sliding plate, sliding grooves are formed in the left end and the right end of the mounting base, the sliding plate is matched with the sliding grooves, and the moving track of the sliding plate can be limited under the mutual matching action of the sliding grooves and the sliding plate, so that the stretching direction of the expansion joint is limited; the scale mark has all been carved with to both ends wall around the installation base, and the end wall flushes in the zero point position of scale mark and the spout, and the maximum tensile volume of the expansion joint of the detection personnel of being convenient for detects and the record, makes things convenient for the accurate measurement of staff to the maximum tensile volume of expansion joint.

Drawings

FIG. 1 is a schematic isometric view of the present invention.

Fig. 2 is a rear side structure diagram of the present invention.

FIG. 3 is a schematic top view of the present invention.

FIG. 4 is a schematic view of the internal structure of the present invention.

Wherein, 1 installation base, 2 support bodies, 3 installation plates, 4 slotted holes, 5 sliding rods, 6 first hinges, 7 side rods, 8 second hinges, 9 rectangular plates, 10 clamping plates, 11 sliding grooves, 12 sliding plates, 13 pressing plates, 14 expansion joints, 15 pipe orifices and 16 elastic elements.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the embodiment shown in fig. 1, an expansion joint tensile test device comprises a mounting base 1, an expansion joint 14 is arranged at the upper end of the mounting base 1, pipe orifices 15 are fixedly connected to both the left end and the right end of the expansion joint 14, frame bodies 2 are fixedly connected to both the left end and the right end of the mounting base 1, a mounting plate 3 is fixedly connected between the two frame bodies 2, a slotted hole 4 is formed in the upper end of the mounting plate 3, an elastic member 16 is fixedly connected to the inner wall of one end, close to each other, of the two frame bodies 2, the elastic member 16 can limit the position of a rectangular plate 9, after a worker completes a test on the expansion joint 14, the position of the rectangular plate 9 can be restored under the action of the elastic member 16, the next test operation of the worker is facilitated, the rectangular plate 9 is fixedly connected to one end, close to the expansion joint 14, of the elastic member 16, a clamping plate 10, the upper end of the rectangular plate 9 is hinged with side rods 7 through a second hinge 8, the two side rods 7 are rotatably connected through a first hinge 6, the upper end of the first hinge 6 is fixedly connected with a sliding rod 5, and the sliding rod 5 is slidably connected with the slotted hole 4.

When a worker needs to test the tensile properties of the expansion joint 14, the worker first places the expansion joint 14 between the two rectangular plates 9, and the pipe orifice 15 and the clamping plate 10 are matched and fixed with each other, when a worker vertically presses the pressing plate 13 downwards, the rectangular plates 9 at the two ends can move to the direction far away from the expansion joint 14 through the cooperation among the first hinge 6, the side bars 7 and the second hinge 8, thereby stretching the expansion joint 14 to a maximum length, the operator records the length of the expansion joint 14 at that time, and, by comparison with the length of the expansion joint 14 before testing, can record the tensile coefficient of expansion joint 14, this device can carry out the sampling test to the tensile property of expansion joint 14 after the production is accomplished, compares in prior art and can simplify the measuring procedure, reduces the measurement degree of difficulty, improves staff's measurement of efficiency.

The inner end wall of the slotted hole 4 is fixedly connected with an annular protective sleeve which is made of hard plastic, the annular protective sleeve is matched with the sliding rod 5, the surface of the sliding rod 5 is abraded in the process that the sliding rod 5 vertically moves up and down along the slotted hole 4, the annular protective sleeve plays a certain protection role on the sliding rod 5, the upper end of the sliding rod 5 is fixedly connected with a pressing plate 13, the contact area between the sliding rod 5 and a worker or a pressure manipulator is increased, the sliding rod 5 is protected, the lower end of the rectangular plate 9 is fixedly connected with a sliding plate 12, the left end and the right end of the installation base 1 are both provided with sliding grooves 11, the sliding plate 12 is matched with the sliding grooves 11, the moving track of the sliding plate 12 can be limited under the mutual matching effect between the sliding grooves 11 and the sliding plate 12, so that the stretching direction of the expansion joint 14 is limited, please refer to figure 3, scale marks are carved on, the position of scale mark zero point flushes with 11 inner walls of spout, and the maximum tensile volume of the expansion joint of the detection personnel of being convenient for detects and the record, makes things convenient for the accurate measurement of staff to the maximum tensile volume of expansion joint.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications of the expansion joint tensile test device according to the claims of the present invention and those of ordinary skill in the art should fall within the protection scope of the present invention.

Claims

1. The utility model provides an expansion joint tensile test device, includes installation base (1), installation base (1) upper end be equipped with expansion joint (14), expansion joint (14) about both ends equal fixedly connected with mouth of pipe (15), its characterized in that: the left end and the right end of the mounting base (1) are fixedly connected with frame bodies (2), a mounting plate (3) is fixedly connected between the two frame bodies (2), the upper end of the mounting plate (3) is provided with a slotted hole (4), the inner wall of one end of the two frame bodies (2) close to each other is fixedly connected with an elastic piece (16), one end of the elastic piece (16) close to the expansion joint (14) is fixedly connected with a rectangular plate (9), the rectangular plate (9) is fixedly connected with a clamping plate (10), the shapes of the clamping plate (10) and the pipe orifice (15) are mutually matched, the upper end of the rectangular plate (9) is hinged with side rods (7) through a second hinge (8), the two side rods (7) are rotatably connected through a first hinge (6), the upper end of the first hinge (6) is fixedly connected with a sliding rod (5), and the sliding rod (5) is in sliding connection with the slotted hole (4).

2. The expansion joint tensile test device of claim 1, wherein: the inner end wall of the slotted hole (4) is fixedly connected with an annular protective sleeve, and the annular protective sleeve is matched with the sliding rod (5).

3. The expansion joint tensile test device of claim 1, wherein: the upper end of the sliding rod (5) is fixedly connected with a pressing plate (13).

4. The expansion joint tensile test device of claim 1, wherein: the lower end of the rectangular plate (9) is fixedly connected with a sliding plate (12), sliding grooves (11) are formed in the left end and the right end of the mounting base (1), and the sliding plate (12) is matched with the sliding grooves (11) mutually.

5. The expansion joint tensile test device of claim 1, wherein: the front end wall and the rear end wall of the mounting base (1) are respectively provided with scale marks, and the zero point positions of the scale marks are flush with the inner end wall of the sliding groove (11).