Assembly type displacement meter fixing device adjustable in size and suitable for various shapes

Abstract

The invention relates to the technical field of structural performance test equipment, in particular to an assembly type displacement meter fixing device adjustable in size and suitable for various shapes, and the device comprises clamping mechanisms which are symmetrically arranged up and down, each clamping mechanism comprises first supporting plates which are symmetrically arranged, and screw rods are symmetrically arranged on the two first supporting plates; the two first supporting plates and the two screw rods form a # shape, first base plates are arranged on the sides, deviating from each other, of the two first supporting plates, the two first base plates located on the same side are oppositely arranged, and a displacement meter is placed between the two first base plates. The device can be effectively installed on members with different shapes and different sizes through the first supporting plate and the screw rod, the use efficiency of the first supporting plate and the screw rod is effectively improved, the displacement meter can be effectively installed on the first base plate, the test cost is reduced, and material waste is avoided; the device is simple in structure, completely assembled, convenient to mount and transport, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to the technical field of structural performance test equipment, and in particular to an assembled displacement meter fixing device which can adjust the size and is suitable for various shapes. Background Art

[0002] When conducting structural experiments, displacement is one of the key measurement indicators. Ensuring the accuracy of recorded results is of great significance for the development of experimental research and subsequent analysis.

[0003] Take the vertical displacement measurement of axially compressed components as an example. In the prior art, for the purpose of easy operation, some prior art places the lower part of the magnetic base of the fixed displacement meter directly on the loading table of the testing machine, and the top of the displacement meter is close to the upper loading table surface to measure the vertical compression displacement. However, due to the gap between the loading table and the upper and lower surfaces of the component, the measurement results are often biased. In addition, if a leveling layer needs to be set between the loading table and the surface of the compressed component to ensure the verticality of the component, the measured displacement will not represent the compression displacement of the compressed component itself.

[0004] At present, the prior art also proposes a method of setting a hoop on the surface of the component and arranging a displacement meter between the upper and lower sets of hoops. However, the device of the prior art is generally only applicable to specific cross-sectional forms and sizes and is not universal. If a specific hoop is designed for each cross-section, not only is the cost high, but the repeated design also has the disadvantage of wasting resources. In addition, there is also a prior art method of fixing the displacement meter by welding the first pad at the lateral position on the surface of the steel component. However, this operation requires a welder with professional qualifications, and each different test piece needs to weld and remove the first pad, which is a large workload and repetitive.

[0005] In order to improve the accuracy and convenience of displacement measurement, there is an urgent need for an assembled displacement meter fixture with adjustable size and suitable for various shapes. It is not only suitable for various cross-sectional shapes and sizes, but also does not require welding and can be completed by manual assembly. Summary of the invention

[0006] The purpose of the present invention is to provide an assembled displacement meter fixing device which is adjustable in size and applicable to various shapes, so as to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following solution: an assembled displacement meter fixing device with adjustable size and suitable for various shapes, including a clamping mechanism symmetrically arranged in the upper and lower parts, the clamping mechanism including symmetrically arranged first support plates, two first support plates symmetrically arranged with screws, the two first support plates and the two screws are in a criss-cross shape, a first pad is arranged on the side of the two first support plates facing away from each other, the two first pads on the same side are arranged opposite to each other, and the displacement meter is placed between the two first pads.

[0008] Preferably, a slide groove is respectively provided on each outer wall in the extension direction of the first support plate, and the screw rod and the first pad move along the slide groove.

[0009] Preferably, the first pad is arranged on the slide groove on the side of the first support plate facing away from the component.

[0010] Preferably, the screw rod is arranged on the slide groove adjacent to the first pad.

[0011] Preferably, both ends of the screw rod are slidably connected to a connecting frame, a first bolt is rotatably connected to the connecting frame, one end of the first bolt passes through the connecting frame and is threadedly connected to a first slider, and the first slider is slidably connected to the sliding groove.

[0012] Preferably, a first limiting block is symmetrically and fixedly connected to one side of the connecting frame facing the sliding slot, and the first limiting block is slidably connected to the sliding slot.

[0013] Preferably, the first pad is arranged in an L-shape, a second bolt is rotatably connected to the first pad, the second bolt passes through the first pad and is threadedly connected to a second slider, and the second slider is slidably connected to the slide groove.

[0014] Preferably, a second limit block is symmetrically and fixedly connected to one side of the first pad facing the slide slot, and the second limit block is slidably connected to the slide slot.

[0015] Preferably, one end of the screw rod extending outside the connecting frame is threadedly connected with a first nut.

[0016] The present invention discloses the following technical effects:

[0017] The present invention can be effectively installed on components of different shapes and sizes through the first support plate and the screw rod, effectively improving the use efficiency of the first support plate and the screw rod, and can effectively install the displacement meter on the first pad, which not only reduces the test cost but also avoids material waste.

[0018] The invention has a simple structure, is fully assembled, is easy to install and transport, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first support plate of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the slider of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the limit block of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the present invention used for four-displacement timing;

[0025] Figure 6 This is a schematic diagram of the structure of the present invention when used for a square cross-section test piece;

[0026] Figure 7 It is a schematic diagram of the structure of the present invention when it is used for a circular cross-section test piece;

[0027] Figure 8 This is a schematic diagram of the structure of the present invention when used for a hexagonal cross-section specimen;

[0028] Among them, 1. the first support plate; 2. the screw rod; 3. the first pad; 4. the bracket; 11. the slide groove; 12. the first slider; 13. the threaded hole; 14. the first limit block; 21. the connecting frame; 22. the first nut; 23. the first bolt; 31. the second bolt; 41. the third bolt; 42. the fourth bolt. DETAILED DESCRIPTION

[0029] The possible implementation schemes found in the art are:

[0030] The patent with the patent announcement number CN117387463A discloses a device for measuring the vertical displacement of the water structure of a small and medium-span bridge, including: a permanent base; a lifting part, the lifting part is used for the length of the underwater part of the lifting device to ensure that the device can meet the requirements of waters of different depths, the lifting part includes a fixed base fixedly installed on the permanent base, a power storage device is fixedly installed on the fixed base through a docking screw and a docking thread groove, an adjusting motor is fixedly installed on the power storage device, a power generation mechanism is installed between the fixed base and the adjusting motor, a top rod is installed on the power storage device through a sliding mechanism, and an adjusting mechanism is installed between the top rod and the adjusting motor; a mounting part, the mounting part is used to install a device for measuring the elevation of the fixed point of the bridge, so as to actually measure the vertical displacement of the bridge, and the displacement can be quickly measured, the mounting part includes a mounting support, an elevation The locator is a sliding connection between the mounting support and the top rod through an adjusting rod, and a locking mechanism is installed between the adjusting rod and the top rod; the measuring part is a device used to measure the elevation of the fixed point of the bridge, so as to actually measure the vertical displacement of the bridge, and the displacement can be measured quickly. The measuring part includes a docking support, on which an inclination protractor is fixedly installed, the docking support and the mounting support are rotatably connected, a fixing mechanism is installed between the docking support and the mounting support, a rotating disk is fixedly installed on the docking support, a connecting screw is rotatably installed on the rotating disk, a connecting thread groove matching the connecting screw is provided on the mounting support, a measuring platform is rotatably installed on the docking support through a rotating plate, a measuring ruler is fixedly installed on the measuring platform, and a scale is engraved on the measuring ruler, a storage mechanism matching the measuring ruler is installed on the measuring platform, and a measuring mechanism is installed on the measuring ruler.

[0031] During the measurement process, this patent can quickly and directly measure the elevation of the bridge, and then determine the vertical displacement of the bridge by comparing it with the original data. There is no need to obtain data through complex calculations, which reduces measurement errors, improves the accuracy of vertical displacement measurements, and improves the maintenance safety of the bridge.

[0032] During the measurement process, this patent can automatically adjust the underwater height without manual adjustment, with high adjustment efficiency. At the same time, water flow can be used to provide power to the device, with high resource utilization, reducing the probability of measurement deviation caused by the settlement of the permanent base, and further improving the accuracy of the measurement.

[0033] During the measurement process, this patent can not only measure the vertical displacement of the bridge at any part of the water, but also can meet the measurement requirements under different water levels, reducing the impact of the water level on the measurement. It has high measurement efficiency, few limitations, a wider range of applications, and stronger functionality.

[0034] During the measurement process, this patent can not only measure the vertical displacement of the bridge when the permanent base sinks, but also measure the vertical displacement of the bridge when the permanent base tilts. The measurement data can be obtained through simple calculations. The calculation process is simple, the error is small, and the measurement results are more accurate.

[0035] In summary, this patent can not only quickly and directly measure the vertical displacement of the bridge when the permanent base sinks, but also measure the vertical displacement of the bridge through simple calculations when the permanent base tilts. The measurement error is small and the measurement accuracy is higher.

[0036] Patent announcement number CN215448718U discloses a vertical displacement measuring device for a concrete test block compression test, including a fixing device, a displacement meter fixing device and a displacement meter, the number of the fixing devices is two, the two fixing devices are arranged up and down, and are clamped at the top and bottom of the concrete test block respectively; the number of the displacement meter fixing devices is two, the two displacement meter fixing devices are respectively a first displacement meter fixing device and a second displacement meter fixing device, the first displacement meter fixing device is installed below the fixing device at the top, the second displacement meter fixing device is installed above the fixing device at the bottom, and the displacement meter is installed on the first displacement meter fixing device and the second displacement meter fixing device. The first displacement meter fixing device and the second displacement meter fixing device both include a concrete test block fixing frame, the concrete test block fixing frame is sleeved on the outside of the concrete test block, and four fixing screws are symmetrically arranged on both sides of each concrete test block fixing frame. The four fixing screws are grouped in twos, and the two fixing screws in the same group are located on the same side, and the fixing screws horizontally penetrate the concrete test block fixing frame; the first displacement meter fixing device also includes a first L-shaped fixing rod, the number of the first L-shaped fixing rods is two, and the two first L-shaped fixing rods are respectively connected to the two opposite sides of the concrete test block fixing frame of the first displacement meter fixing device through two second connecting screws, and the first L-shaped fixing rods are perpendicular to each other. The first L-shaped fixing rod is composed of a transverse rod and a longitudinal rod, the longitudinal rod of the first L-shaped fixing rod is clamped on the outer wall of the concrete test block fixing frame of the first displacement meter fixing device through a clamping groove, the transverse rod of the first L-shaped fixing rod extends outward, and a clamping groove is opened on the transverse rod of the first L-shaped fixing rod, the clamping groove is axially penetrated and has an opening perpendicular to the length direction of the concrete test block, the opening divides the transverse rod of the first L-shaped fixing rod into two parts, namely a first part and a second part, both of which are provided with transverse through-threaded holes, and the same displacement meter fixing screw is penetrated in the two transverse through-threaded holes; the second displacement meter fixing device also includes a second L-shaped fixing rod, the number of the second L-shaped fixing rod There are two of them, and the two second L-shaped fixing rods are connected to the two opposite sides of the concrete test block fixing frame of the second displacement meter fixing device through two second connecting screws respectively. The second L-shaped fixing rod is composed of a transverse rod and a longitudinal rod perpendicular to each other. The longitudinal rod of the second L-shaped fixing rod is clamped on the outer wall of the concrete test block fixing frame of the second displacement meter fixing device through a slot. The transverse rod of the second L-shaped fixing rod extends outward, and a groove is provided in the middle of the transverse rod of the second L-shaped fixing rod, and the groove is opposite to the clamping groove; and a bracket is provided at the bottom of the transverse rod of the second L-shaped fixing rod; the upper part of the displacement meter is clamped in the clamping groove of the first L-shaped fixing rod, and the bottom is placed in the groove of the second L-shaped fixing rod.

[0037] This patent can not only be used for the coordinated work of the fixture device for fixing the concrete test block and the displacement meter, but also can display the change of the vertical displacement of the concrete test block when it is under pressure, which greatly saves working time and is suitable for prismatic concrete test blocks of multiple sizes. The displacement meter and the concrete test block can be fixed in stages, and the stages are not in order, and the two parts can be adjusted separately during the working process with relative accuracy. The implementation process is simple to operate, saving time without delaying the working accuracy.

[0038] Embodiments that can be added to the present invention are:

[0039] A displacement meter is a sensor used to measure the position change of an object. It is widely used in civil engineering, structural monitoring, scientific research and other fields. The following are several common types of displacement meters and their characteristics:

[0040] Vibrating Wire Displacement Meter:

[0041] The vibrating-wire displacement meter is suitable for long-term measurement of the opening and closing degree (deformation) of expansion joints of hydraulic structures or other concrete structures. It can also be used to measure the displacement, settlement, strain, and slippage of structures such as earth dams, earth embankments, and slopes, and can simultaneously measure the temperature of the buried point. The vibrating-wire displacement meter has an automatic temperature compensation function. The temperature correction coefficient is very small after testing. It does not require temperature correction during use, and has an intelligent recognition function.

[0042] Resistive displacement meter:

[0043] The resistance displacement meter is suitable for being placed inside and on the surface of concrete structures or other material structures to measure the opening and closing degree (deformation) of expansion joints or peripheral joints of structures. It can also be used to measure the displacement, settlement, strain, slippage, etc. of structures such as earth dams, earth embankments, slopes, bridges, etc. The resistance displacement meter can be used as a digital dial indicator and is widely used in occasions such as bridge inspection and test measurement, and has intelligent recognition function.

[0044] FOD fiber optic displacement meter:

[0045] FOD fiber optic displacement meter is a high-precision fiber optic displacement meter produced by Roctest, Canada. It is completely immune to electromagnetic and radio frequency interference, inherently resistant to harsh environments, high precision, high resolution, etc. It is suitable for various fiber optic signal conditioners of Roctest and is the best choice for measuring absolute position and displacement.

[0046] Array displacement meter:

[0047] The array displacement meter is a three-dimensional deformation monitoring sensor that integrates advanced technology. It can not only measure displacement (deformation), but also monitor angle, acceleration, vibration and temperature, providing all-round data support for engineering safety. It has been widely used in many monitoring fields such as hydropower, railways, tunnels, slopes, tailings, foundation pits, etc.

[0048] Pen-type displacement sensor:

[0049] Pen-type displacement sensor (also called electronic stylus or displacement meter) is a precision instrument used to measure the position change of the surface of an object. It is widely used in industrial automation, scientific research experiments, quality control and other fields. Its working principle is based on converting physical displacement into measurable electrical signals, and then realizing accurate measurement and monitoring of displacement through data processing system.

[0050] Square aluminum tube is a common aluminum alloy product with medium strength, good plasticity and excellent corrosion resistance. It is widely used in architectural decoration, machinery manufacturing, steel construction and other fields, such as building doors and windows, curtain walls, decoration, mechanical parts, building decoration support, hardware tools, etc.

[0051] Specifications and materials of square aluminum tubes:

[0052] Square aluminum tubes come in a variety of sizes and thicknesses, with common specifications including 4040L, 4080L, 40120L, 8840L, 40*160L, etc. In terms of materials, there are mainly 6061, 6063 and other aluminum alloys, which have good processing performance and corrosion resistance.

[0053] Square aluminum tube connection method:

[0054] There are many ways to connect square aluminum tubes, including welding splicing, mechanical connection, glue connection, and notch connection; square aluminum tubes can also be connected by heat shrinkage, compression, welding, quick-connect flange, tapered thread, limited compression, and flexible quick-connect flange. Different connection methods are suitable for different situations, and you can choose the appropriate connection method according to specific needs.

[0055] Square aluminum tubes can be extruded precisely; they have good load-bearing capacity and strong corrosion resistance; different shapes and architectural types can be selected according to personalized design needs, and there is a wide range of color choices; the span is much stronger than that of aluminum square tube sun rooms, and can be 8 or 9 meters without columns, and has a long service life; it has proven safety, strong tolerance and is watertight.

[0056] The spring leaf nut is a special nut that uses a spring leaf structure to achieve the functions of tightening and loosening. The principle of the spring leaf nut is to provide tightening force through the elastic deformation of the spring leaf, thereby achieving control of the threaded connection. The spring leaf nut usually consists of a base and several spring leaves. The base is a disc-shaped structure with several holes arranged at equal intervals, and a spring leaf is installed in each hole. One end of the spring leaf is fixed in the hole, and the other end can be bent to make it fit or leave the thread.

[0057] Application of spring leaf nut:

[0058] Reed nuts are widely used in many fields. For example, in mechanical manufacturing, reed nuts can be used to fasten parts such as bearings and gears. Its fastening force is stable and reliable, and it is easy to operate, which can improve production efficiency. Reed nuts can also be used in some special environments, such as high temperature and high pressure. Since reed nuts have no other parts and no loosening problems, the reliability of the connection can be guaranteed.

[0059] Types and uses of spring leaf nuts:

[0060] There are many types of reed nuts, not only in different shapes, but also in different sizes. Its uses include:

[0061] Tightening force: The force used to tighten the nuts. It can be used as a medium to tighten two parts. It is usually suitable for tightening large parts.

[0062] Tighten and stabilize: used to stabilize the installation of nuts, usually the operation and installation are quite convenient. The appearance is relatively delicate and suitable for automotive exterior structural parts.

[0063] Use in special situations: It can withstand high pressure and can be used in special situations and environments.

[0064] Tightening effect: can be used in situations where huge supporting force is required.

[0065] Squeezing and supporting function: It is used to open up some space in extremely narrow spaces to release gas.

[0066] Welding function: It is used for reinforcement when it is necessary to melt and then re-weld in some cases, and super-solid welding can be performed.

[0067] Load-bearing function: In some cases, the object at the bottom cannot withstand the huge pressure. At this time, adding a spring nut can withstand the force on the top.

[0068] Balancing effect: When the weight of the parts is unbalanced, the reed nut is used for adjustment to keep the overall effect balanced and relieve the huge pressure.

[0069] Locking nut: As a locking button for all parts, the reed nut can act as a locking function under certain circumstances to lock and reinforce the structure that is not very strong.

[0070] Protective function: Under certain circumstances, the reed nut, as a special object in a special position, can be embedded in a specific position to prevent the parts from shaking in the original position and causing the overall structure to loosen.

[0071] Opening and closing function: In special cases, the opening and closing nut can be used in some places to facilitate the opening of parts in inconvenient positions during repair and disassembly.

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0074] Embodiment 1

[0075] Reference Figure 1-Figure 4 The present invention provides an assembled displacement meter fixing device with adjustable size and applicable to various shapes, including a clamping mechanism symmetrically arranged in the upper and lower parts, the clamping mechanism including symmetrically arranged first support plates 1, two first support plates 1 are symmetrically arranged with screw rods 2, the two first support plates 1 and the two screw rods 2 are in a tic-tac-toe shape, a first pad 3 is arranged on the side of the two first support plates 1 facing away from each other, the two first pads 3 on the same side are arranged opposite to each other, and the displacement meter is placed between the two first pads 3.

[0076] The present invention can be effectively installed on components of different shapes and sizes through the first support plate 1 and the screw rod 2, which effectively improves the use efficiency of the first support plate 1 and the screw rod 2, and can effectively install the displacement meter on the first pad 3, which not only reduces the test cost but also avoids material waste.

[0077] The invention has a simple structure, is fully assembled, is easy to install and transport, and saves time and effort.

[0078] The first support plate 1 is made of a square aluminum tube, which effectively reduces the weight of the first support plate 1 and facilitates installation, disassembly and transportation.

[0079] In a further optimized solution, a slide groove 11 is provided on each outer wall in the extension direction of the first support plate 1, and the screw rod 2 and the first pad 3 move along the slide groove 11. By adjusting the distance between the two screw rods 2 and the two first support plates 1, it is convenient to install on components of different shapes and sizes.

[0080] In a further optimized solution, the first pad 3 is arranged on the slide groove 11 on the side of the first support plate 1 away from the component, so that the first pad 3 can effectively adjust its position along the slide groove 11 .

[0081] In a further optimized solution, the screw rod 2 is arranged on the slide groove 11 adjacent to the first pad 3. By installing the screw rod 2 and the first pad 3 on different slide grooves 11, it is not only convenient to adjust the distance between the two screw rods 2, but also possible to prevent the screw rod 2 and the first pad 3 from affecting each other.

[0082] In a further optimized solution, the two ends of the screw rod 2 are respectively slidably connected to a connecting frame 21, a first bolt 23 is rotatably connected to the connecting frame 21, one end of the first bolt 23 passes through the connecting frame 21 and is threadedly connected to the first slider 12, and the first slider 12 is slidably connected to the slide groove 11. The first bolt 23 is threadedly connected to a threaded hole 13, and the threaded hole 13 is opened on the first slider 12.

[0083] The first slider 12 moves along the slide groove 11. When the screw rod 2 is in a specified position, the first bolt 23 is rotated so that the first bolt 23 rotates in the threaded hole 13, so that the first slider 12 moves up and down in the slide groove 11. When the top surface of the first slider 12 is tightly in contact with the top of the slide groove 11, the slide groove 11 is clamped by the first slider 12 and the connecting frame 21 to limit the first slider 12 so that it cannot move along the slide groove 11.

[0084] In a further optimized solution, the connecting frame 21 is symmetrically and fixedly connected to one side of the slide slot 11 with a first stopper 14, and the first stopper 14 is slidably connected to the slide slot 11. The first stopper 14 moves along the slide slot 11, so that the connecting frame 21 does not rotate when moving along the slide slot 11.

[0085] In a further optimized solution, the first pad 3 is arranged in an L shape, and a second bolt 31 is rotatably connected to the first pad 3. The second bolt 31 penetrates the first pad 3 and is threadedly connected to a second slider, and the second slider is slidably connected to the slide groove 11. The second slider moves along the slide groove 11, and when the first pad 3 is in a specified position, the second bolt 31 is rotated, and the second bolt 31 is threadedly connected to the second slider, so that the second slider moves up and down in the slide groove 11. When the top surface of the second slider is tightly in contact with the top of the slide groove 11, the second slider is clamped with the first pad 3 to clamp the slide groove 11, and the second slider is limited so that the second slider cannot move along the slide groove 11.

[0086] In a further optimized solution, the first pad 3 is symmetrically and fixedly connected to one side of the slide groove 11 with a second limit block, and the second limit block is slidably connected to the slide groove 11. The second limit block moves along the slide groove 11, so that the first pad 3 does not rotate when moving along the slide groove 11.

[0087] In a further optimized solution, one end of the screw rod 2 extending out of the connecting frame 21 is threadedly connected with a first nut 22. The first nut 22 is a nut with a spring sheet to prevent the first nut 22 from loosening.

[0088] By rotating the first nut 22 , the opposite sides of the two first support plates 1 can be driven to closely contact the outer wall of the structure, so that the two first support plates 1 can effectively clamp the structure.

[0089] Working process:

[0090] First, install a clamping mechanism, install two screw rods 2 on a first support plate 1, and then put it on the component, and then install another first support plate 1 on the two screw rods 2. By rotating the first nut 22, the two first support plates 1 clamp the component, and then move the connecting frame 21 to clamp the two screw rods 2. Then tighten the first bolt 23 so that the screw rods 2 and the first support plate 1 can effectively clamp the component, and then install another clamping mechanism. After the installation is completed, the bottom of the displacement meter is connected to the first pad 3 at the bottom through magnetic attraction, and the ejector pin of the displacement meter is abutted against the bottom of the first pad 3 at the top.

[0091] Reference Figure 6 , this embodiment is installed on a square cross-section member.

[0092] Reference Figure 7 , this embodiment is installed on a circular cross-section specimen.

[0093] Reference Figure 8 , this embodiment is installed on a hexagonal cross-section specimen.

[0094] Embodiment 2

[0095] Reference Figure 5 The difference between this embodiment and the first embodiment is that when the test needs to install displacement meters in four directions, the second support plate is installed on the side of the first support plate 1 away from the screw rod 2 through the bracket, and the second support plate is slidably connected with the second pad. The second support plate and the second pad have the same structure as the first support plate 1 and the first pad 3. The bracket 4 is threadedly connected with the third slider through the third bolt 41, and the third slider is slidably connected to the slide groove 11. The bracket 4 is threadedly connected with the fourth slider through the fourth bolt 42, and the fourth slider is slidably connected to the slide groove 11 on the second support plate.

[0096] The first pad 3 and the second pad can realize installation of displacement meters in four directions.

[0097] The present invention can be effectively installed on components of different shapes and sizes, effectively improving the use efficiency of the first support plate 1 and the screw 2, and can effectively install the displacement meter on the first pad 3, which not only reduces the test cost but also avoids material waste; the present invention has a simple structure, is fully assembled, is easy to install and transport, and saves time and effort.

[0098] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0099] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An assembled displacement meter fixing device with adjustable size and applicable to various shapes, characterized in that: The invention comprises a clamping mechanism symmetrically arranged in an upper and lower direction, wherein the clamping mechanism comprises symmetrically arranged first support plates (1), two first support plates (1) are symmetrically provided with screw rods (2), the two first support plates (1) and the two screw rods (2) are in a tic-tac-toe shape, a first pad (3) is provided on the side of the two first support plates (1) facing away from each other, the two first pads (3) on the same side are arranged opposite to each other, and a displacement meter is placed between the two first pads (3).

2. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 1 is characterized in that: A sliding groove (11) is respectively provided on each outer wall in the extension direction of the first support plate (1), and the screw rod (2) and the first pad (3) move along the sliding groove (11).

3. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 2 is characterized in that: The first pad (3) is arranged on the slide groove (11) on the side of the first support plate (1) facing away from the component.

4. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 2 is characterized in that: The screw rod (2) is arranged on the slide groove (11) adjacent to the first pad (3).

5. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 2 is characterized in that: The two ends of the screw rod (2) are respectively slidably connected to a connecting frame (21), and a first bolt (23) is rotatably connected to the connecting frame (21). One end of the first bolt (23) passes through the connecting frame (21) and is threadedly connected to a first sliding block (12). The first sliding block (12) is slidably connected to the sliding groove (11).

6. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 5 is characterized in that: The connecting frame (21) is symmetrically and fixedly connected to a first limit block (14) on one side facing the slide groove (11); the first limit block (14) is slidably connected to the slide groove (11).

7. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 2 is characterized in that: The first pad (3) is arranged in an L shape, a second bolt (31) is rotatably connected to the first pad (3), the second bolt (31) passes through the first pad (3) and is threadedly connected to a second slider, and the second slider is slidably connected to the slide groove (11).

8. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 2 is characterized in that: A second limit block is symmetrically and fixedly connected to one side of the first pad (3) facing the slide groove (11), and the second limit block is slidably connected to the slide groove (11).

9. The assembly-type displacement meter fixing device with adjustable size and applicable to various shapes according to claim 5 is characterized in that: One end of the screw rod (2) extending outside the connecting frame (21) is threadedly connected to a first nut (22).

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