Displacement deformation measuring device

Abstract

The utility model relates to the technical field of detection, and particularly discloses a displacement deformation measuring device which comprises a shell, the shell comprises a kettle cover and a kettle body, and a first opening is formed in the kettle cover; the stretching mechanism comprises an upper pull rod, an upper assembly, a lower pull rod, a lower assembly, a reverse stand column and a fixing block; the sensing mechanism comprises a sensor fixing seat, two first wire inserting pipes and two sensing assemblies, the sensor fixing seat is fixed to the lower assembly, a second opening and a third opening are formed in the two ends of the sensor fixing seat, the first wire inserting pipes are connected with the kettle cover, one ends of the sensing assemblies are connected with the first wire inserting pipes through medium-pressure bolts, and the other ends of the sensing assemblies are connected with the second wire inserting pipes through medium-pressure bolts. The other ends of the two sensing assemblies are respectively connected with the second opening and the third opening, and the other sensing assembly is connected with the previous assembly through a probe; the displacement deformation measuring device overcomes the defects that in the prior art, a displacement deformation measuring device is not firm in clamping, insufficient in stability, inconvenient to disassemble, assemble and maintain and insufficient in sealing performance.

Description

Technical Field

[0001] The utility model relates to the field of detection, in particular to a displacement deformation measuring device. Background Art

[0002] Displacement and deformation measurement devices are technical devices used to monitor and measure the position changes of objects or structures in space. These devices are widely used in engineering, geology, construction, machinery manufacturing and other fields to ensure the safety and stability of structures.

[0003] In the existing technology, displacement deformation measurement devices usually have unstable clamping of the test piece, which can easily cause the test piece to fall off during the experiment, affecting the experimental accuracy. At the same time, the disassembly and maintenance of the sensor requires the entire device to be disassembled, which makes maintenance complicated. In the face of high temperature environments, the sealing of the shell is poor, which can easily cause electromagnetic interference to the sensor. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] The problem to be solved by the utility model is to provide a displacement deformation measuring device to overcome the defects of the displacement deformation measuring device in the prior art, such as weak clamping, insufficient stability, inconvenient disassembly and maintenance, and insufficient sealing.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a displacement deformation measuring device, comprising:

[0008] A shell, the shell comprising a kettle cover and a kettle body, the kettle cover and the kettle body being threadedly connected, and the kettle cover is provided with a first opening;

[0009] A stretching mechanism, comprising an upper pull rod, an upper assembly, a lower pull rod, a lower assembly, an inverted column, and a fixed block, wherein the upper pull rod is inserted into the first opening, the upper pull rod is connected to the upper assembly, one end of the inverted column is connected to the kettle cover, the other end of the inverted column is connected to the fixed block, the lower pull rod is inserted into the fixed block, and the lower pull rod is connected to the lower assembly;

[0010] The sensing mechanism includes a sensor fixing seat, two first wire insertion tubes and two sensing components. The sensor fixing seat is fixed to the lower component. A second opening and a third opening are provided at both ends of the sensor fixing seat. The first wire insertion tube is hollow and connected to the kettle cover. One end of the two sensing components is connected to the corresponding first wire insertion tube through a medium-pressure bolt, and the other ends of the two sensing components are respectively connected to the second opening and the third opening. One sensing component is connected to the lower component through a probe, and the other sensing component is connected to the upper component through a probe.

[0011] As for the displacement deformation measuring device described above, optionally, the upper assembly includes an upper sample tool and an upper clamp, the upper sample tool is connected to the upper pull rod, and the upper clamp is connected to the upper sample tool.

[0012] As described above, in the displacement deformation measuring device, optionally, a probe of the sensing assembly is connected to the upper clamp.

[0013] As described above, the displacement deformation measuring device, optionally, the lower assembly includes a lower sample tool and a lower clamp, the lower sample tool is connected to the lower pull rod, the lower clamp is connected to the lower sample tool, and the upper sample tool and the lower sample tool are coaxial.

[0014] As described above, in the displacement deformation measuring device, optionally, another probe of the sensing assembly is connected to the lower clamp.

[0015] As described above, the displacement deformation measuring device, optionally, the sensing assembly includes a displacement sensor, a welding joint, a connecting pipe, a welding connection block and a threaded pipe, the welding joint is connected to the displacement sensor by welding, one end of the connecting pipe is integrally connected to the welding joint, the other end of the connecting pipe is connected to the welding connection block, and one end of the threaded pipe is connected to the welding connection block.

[0016] As for the displacement deformation measuring device described above, optionally, the threaded tube is connected to the first wire insertion tube through the medium-pressure bolt, the interior of the threaded tube is hollow, and the two displacement sensors are respectively inserted into the second opening and the third opening.

[0017] As for the displacement deformation measuring device described above, optionally, an O-ring is provided between the kettle cover and the kettle body.

[0018] (3) Beneficial effects

[0019] The present invention provides a displacement deformation measuring device, which has the following beneficial effects:

[0020] (1) The utility model is characterized in that a first wire insertion tube is connected to the kettle cover, the first wire insertion tube has an external thread, the sensor assembly includes a threaded tube, the first wire insertion tube can be fixed to the threaded tube by a medium-pressure bolt, the displacement sensor is connected to the welding joint by welding, the welding joint is integrated with the connecting pipe, the welding connection block is respectively connected to the connecting pipe and the threaded tube, the wiring in the displacement sensor can be led out of the device through the threaded tube and the first wire insertion tube, and connected to external equipment. At the same time, when the operator needs to debug / replace the sensor, the sensor assembly can be disassembled by removing the medium-pressure bolt, which is convenient for disassembly and maintenance. At the same time, the cooperation between the integrated sensor assembly and the sensor fixing seat effectively avoids the displacement sensor from being offset during installation, thereby affecting the detection accuracy.

[0021] (2) The utility model fixes one end of the test piece in the upper sample and further fixes it with the upper clamp, and fixes the other end of the test piece in the lower sample and further fixes it with the lower clamp. The lower component is connected to the fixed block, one end of the inverted column is connected to the kettle cover, and the other end of the inverted column is connected to the fixed block. The test piece can be pulled up by pulling the upper pull rod through an external driving mechanism. A sensor fixing seat is provided on the lower sample, and two sensor components are provided on the fixing seat. In this way, the upper pull rod can be pulled to pull the test piece to complete the experiment. The tensile test can be completed by only pulling the upper pull rod. The structure is simple and the connection is firm.

[0022] (3) The utility model replaces the sealing connection plug-in in conventional technology with an O-ring, which can effectively improve the performance of the utility model in high temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a partial cross-sectional view of a displacement deformation measuring device of the utility model;

[0025] Figure 2 This is a partial schematic diagram of a displacement deformation measuring device of the present utility model;

[0026] Figure 3 This is a partial schematic diagram of a displacement deformation measuring device of the present invention from another perspective;

[0027] Figure 4 This is a three-dimensional diagram of a sensor component of a displacement deformation measuring device of the present invention.

[0028] The names of the components corresponding to the various figure marks in the figure are: 1. Shell; 11. Kettle cover; 12. Kettle body; 13. First opening; 2. Stretching mechanism; 21. Upper pull rod; 22. Upper assembly; 23. Lower pull rod; 24. Lower assembly; 25. Counter column; 26. Fixed block; 3. Sensing mechanism; 31. Sensor fixing seat; 32. First wire tube; 33. Sensing assembly; 34. Second opening; 35. Third opening; 36. Medium-pressure bolt; 37. Probe; 41. Upper sample tool; 42. Upper clamp; 43. Lower sample tool; 44. Lower clamp; 45. Displacement sensor; 46. Welding joint; 47. Connecting pipe; 48. Welding connection block; 49. Threaded pipe. DETAILED DESCRIPTION

[0029] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0031] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0032] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0033] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0034] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0035] See Figures 1 to 4 The present invention provides a displacement deformation measuring device, comprising a housing 1, a stretching mechanism 2, and a sensing mechanism 3. The stretching mechanism 2 and the sensing mechanism 3 are disposed in the housing 1, a test piece is fixed in the stretching mechanism 2, and the sensing mechanism 3 is connected to the stretching mechanism 2. The sensing mechanism 3 is used to detect the displacement deformation of the test piece when the stretching mechanism 2 is stretched.

[0036] exist Figures 1 to 4 In an optional embodiment, the shell 1 includes a kettle cover 11 and a kettle body 12 , the kettle cover 11 and the kettle body 12 are threadedly connected, and a first opening 13 is provided on the kettle cover 11 .

[0037] It should be noted that the kettle cover 11 and the kettle body 12 are connected by threads, and an O-ring is provided between the kettle cover 11 and the kettle body 12. The O-ring can effectively improve the tightness of the connection between the kettle cover 11 and the kettle body 12.

[0038] exist Figures 1 to 4 In an optional embodiment, the stretching mechanism 2 includes an upper rod 21, an upper assembly 22, a lower rod 23, a lower assembly 24, an inverted column 25, and a fixed block 26. It should be noted that the upper rod 21 is inserted into the first opening 13, and the operator can connect an external driving component to the upper rod 21, and the driving component drives the upper rod 21 to move. At the same time, the upper rod 21 is connected to the upper assembly 22, one end of the inverted column 25 is connected to the kettle cover 11, and the other end of the inverted column 25 is connected to the fixed block 26, the lower rod 23 is inserted into the fixed block 26, and the lower rod 23 is connected to the lower assembly 24.

[0039] Furthermore, the upper assembly 22 includes an upper pattern tool 41 and an upper clip 42 . The upper pattern tool 41 is connected to the upper pull rod 21 , and the upper clip 42 is connected to the upper pattern tool 41 .

[0040] Furthermore, the probe 37 of one of the sensor components 33 is connected to the upper clamp 42 .

[0041] Furthermore, the lower assembly 24 includes a lower pattern tool 43 and a lower clip 44 . The lower pattern tool 43 is connected to the lower pull rod 23 . The lower clip 44 is connected to the lower pattern tool 43 . The upper pattern tool 41 and the lower pattern tool 43 are coaxial.

[0042] Furthermore, the probe 37 of the other sensor assembly 33 is connected to the lower clip 44 .

[0043] It should be noted that the upper end of the test piece can be fixedly clamped in the upper sample tool 41, the upper clip 42 can be synchronously clamped at the upper end of the test piece, the upper clip 42 and the upper sample tool 41 are adjacent to each other, and the upper sample tool 41 and the upper clip 42 cooperate to better clamp the test piece; at the same time, the lower end of the test piece can be fixedly clamped in the lower sample tool 43, the lower clip 44 and the lower sample tool 43 are adjacent to each other, and the lower clip 44 can be synchronously clamped at the lower end of the test piece, and the lower sample tool 43 and the lower clip 44 cooperate to better clamp the test piece.

[0044] exist Figures 1 to 4 In an optional embodiment, the sensing mechanism 3 includes a sensor fixing base 31, two first wire insertion tubes 32, and two sensing components 33. The sensor fixing base 31 is fixed to the lower component 24, and a second opening 34 and a third opening 35 are formed at both ends of the sensor fixing base 31. The first wire insertion tube 32 is hollow and connected to the kettle cover 11. One end of each of the two sensing components 33 is connected to the corresponding first wire insertion tube 32 via a medium-pressure bolt 36, and the other ends of the two sensing components 33 are respectively connected to the second opening 34 and the third opening 35. One sensing component 33 is connected to the lower component 24 via a probe 37, and the other sensing component 33 is connected to the upper component 22 via a probe 37.

[0045] Among them, the sensing component 33 includes a displacement sensor 45, a welding joint 46, a connecting pipe 47, a welding connection block 48 and a threaded pipe 49. The welding joint 46 is connected to the displacement sensor 45 by welding, one end of the connecting pipe 47 is integrally connected to the welding joint 46, the other end of the connecting pipe 47 is connected to the welding connection block 48, and one end of the threaded pipe 49 is connected to the welding connection block 48.

[0046] Furthermore, the threaded tube 49 is connected to the first wire insertion tube 32 through the medium-pressure bolt 36 . The threaded tube 49 is hollow inside, and the two displacement sensors 45 are respectively inserted into the second opening 34 and the third opening 35 .

[0047] The utility model provides a displacement deformation measuring device, and its specific steps are as follows:

[0048] By fixing one end of the specimen in the upper sample holder 41 and further fixing it with the upper clamp 42, the other end of the specimen is fixed in the lower sample holder 43 and further fixed with the lower clamp 44. Among them, the lower component 24 is connected to the fixed block 26, one end of the anti-vertical column 25 is connected to the kettle cover 11, and the other end of the anti-vertical column 25 is connected to the fixed block 26. The specimen can be pulled up by pulling the upper pull rod 21 through an external drive mechanism. A sensor fixing seat 31 is provided on the lower sample holder 43, and two sensor components 33 are provided on the fixing seat. In this way, the upper pull rod 21 can be pulled to pull the specimen to complete the experiment. The tensile test can be completed by only pulling the upper pull rod 21. The structure is simple and the connection is firm.

[0049] By connecting a first wire insertion tube 32 to the kettle cover 11, the first wire insertion tube 32 has an external thread, and the sensor assembly 33 includes a threaded tube 49. The first wire insertion tube 32 and the threaded tube 49 can be fixed by the medium-pressure bolt 36. The displacement sensor 45 is connected to the welding joint 46 by welding. The welding joint 46 is integrated with the connecting pipe 47. The welding connection block 48 is respectively connected to the connecting pipe 47 and the threaded tube 49. The wiring in the displacement sensor 45 can be led out of the device through the threaded tube 49 and the first wire insertion tube 32 and connected to external equipment. At the same time, when the operator needs to debug / replace the sensor, the sensor assembly 33 can be disassembled by removing the medium-pressure bolt 36, which is convenient for disassembly and maintenance. At the same time, the cooperation between the integrated sensor assembly 33 and the sensor fixing seat 31 effectively avoids the displacement sensor 45 from being offset during installation, thereby affecting the detection accuracy.

[0050] The use performance of the utility model in high temperature conditions can be effectively improved by replacing the sealing connection plug-in in conventional technology with an O-ring.

[0051] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0052] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A displacement deformation measuring device, characterized in that: include: A shell (1), the shell (1) comprising a kettle cover (11) and a kettle body (12), the kettle cover (11) and the kettle body (12) being threadedly connected, and a first opening (13) being provided on the kettle cover (11); A stretching mechanism (2), the stretching mechanism (2) comprising an upper pull rod (21), an upper assembly (22), a lower pull rod (23), a lower assembly (24), an anti-vertical column (25) and a fixed block (26), the upper pull rod (21) being inserted into the first opening (13), the upper pull rod (21) being connected to the upper assembly (22), one end of the anti-vertical column (25) being connected to the kettle cover (11), the other end of the anti-vertical column (25) being connected to the fixed block (26), the lower pull rod (23) being inserted into the fixed block (26), and the lower pull rod (23) being connected to the lower assembly (24); A sensing mechanism (3) includes a sensor fixing seat (31), two first wire insertion tubes (32) and two sensing components (33). The sensor fixing seat (31) is fixed to the lower component (24). Two ends of the sensor fixing seat (31) are provided with a second opening (34) and a third opening (35). The first wire insertion tube (32) is hollow and connected to the kettle cover (11). One end of each of the two sensing components (33) is connected to the corresponding first wire insertion tube (32) through a medium-pressure bolt (36). The other ends of the two sensing components (33) are respectively connected to the second opening (34) and the third opening (35). One of the sensing components (33) is connected to the lower component (24) through a probe (37), and the other sensing component (33) is connected to the upper component (22) through a probe (37).

2. The displacement deformation measuring device according to claim 1, characterized in that: The upper assembly (22) comprises an upper pattern tool (41) and an upper clip (42), wherein the upper pattern tool (41) is connected to the upper pull rod (21), and the upper clip (42) is connected to the upper pattern tool (41).

3. The displacement deformation measuring device according to claim 2, characterized in that: A probe (37) of the sensing assembly (33) is connected to the upper clamp (42).

4. The displacement deformation measuring device according to claim 2, wherein: The lower assembly (24) includes a lower pattern tool (43) and a lower clip (44), wherein the lower pattern tool (43) is connected to the lower pull rod (23), the lower clip (44) is connected to the lower pattern tool (43), and the upper pattern tool (41) and the lower pattern tool (43) are coaxial.

5. The displacement deformation measuring device according to claim 4, characterized in that: Another probe (37) of the sensing assembly (33) is connected to the lower clamp (44).

6. The displacement deformation measuring device according to claim 1, wherein: The sensing assembly (33) comprises a displacement sensor (45), a welding joint (46), a connecting pipe (47), a welding connection block (48) and a threaded pipe (49), wherein the welding joint (46) is connected to the displacement sensor (45) by welding, one end of the connecting pipe (47) is integrally connected to the welding joint (46), the other end of the connecting pipe (47) is connected to the welding connection block (48), and one end of the threaded pipe (49) is connected to the welding connection block (48).

7. The displacement deformation measuring device according to claim 6, characterized in that: The threaded tube (49) is connected to the first wire insertion tube (32) through the medium-pressure bolt (36); the threaded tube (49) is hollow inside; and the two displacement sensors (45) are respectively inserted into the second opening (34) and the third opening (35).

8. The displacement deformation measuring device according to claim 1, wherein: An O-ring is provided between the kettle cover (11) and the kettle body (12).

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