JP3242149U - Fixture and Engineering Structural Test Platform - Google Patents

Abstract

An object of the present invention is to enable effective and highly reliable positioning, to eliminate restrictions on the installation positions of fixing holes in a model foundation, and to enable a fixing platform to effectively adapt to model foundations of different standards. , provides fixtures and engineering structural test platforms that increase the versatility of the test platform. A fixing device includes a fixed platform, a plurality of fastening members, a moving groove provided on the upper surface of the fixed platform and penetrating to at least one side surface of the fixed platform, and a positioning groove provided on an inner wall of the moving groove. and an adjusting groove provided on the inner wall of the moving groove away from the positioning groove. In this fixing device, the fixing platform is provided with a positioning groove and an adjustment groove, the fastening member in the positioning groove cannot move, and the fastening member in the adjustment groove can adjust the fixing position. [Selection drawing] Fig. 2

Description

The present utility model relates to the technical field of engineering structural testing, in particular to fixtures and engineering structural testing platforms.

Through engineering model testing, test data on the mechanical performance of engineering structural models can be obtained, and by analogy theory, the mechanical performance of actual engineering structures can be estimated from the engineering model testing results. According to the load application requirements, the engineering structural model must be effectively fixed to the test platform. As a commonly used means of fixing the engineering structural model, the structural model foundation is added, and the structural model foundation is connected to the test with fixing bolts. Fixing the platform realizes the fixation of the engineering structural model and the test platform.

Conventional test platforms are usually provided with trenches with trench holes, and fixing bolts can be moved in the trenches to fix the model foundation in line with the corresponding trench holes. The trench holes are arranged in an array with a certain modulus arrangement, the fixing position of the fixing bolt is determined by the position of the trench hole, and the size of the model foundation is also limited to the position of the trench hole, which greatly restricts the design of the engineering structural model. do. Thus, the conventional model foundation fixing method has a problem of low fixing flexibility.

Therefore, the technical problem to be solved by the present utility model is to overcome the drawback of poor flexibility of the model foundation fixing method in the prior art, and to provide a fixing device and an engineering structural test platform.

To solve the above problems, the present utility model is suitable for fixing a model foundation, comprising: a fixed platform; a plurality of fastening members; a moving groove that penetrates to two side surfaces and is suitable for a plurality of fastening members to move within the moving groove; A positioning groove suitable for positioning one fastening member and an inner wall of the moving groove spaced apart from the positioning groove to form a continuous adjustment portion, wherein at least one fastening member is positioned in the adjustment groove To provide a fixing device having an adjustment groove having an adjustment state in which the groove slides and a positioning state in which the adjustment groove is fixedly fitted.

Optionally, each fastening member comprises a fixing bolt having a threaded rod and a head, the positioning groove fits with the head of the corresponding fastening member, and the adjusting groove fits with the head of the corresponding fastening member. Mate.

Optionally, the side walls of the head form a first stop surface provided at an angle to the axis of the threaded rod, and the inner wall of the positioning groove and/or the inner wall of the adjusting groove have a first fitting. A mating surface is formed, and the first stop surface matches the first mating surface.

Optionally, the model foundation is provided with a through hole for a threaded rod to pass through, each fastening member further includes a fixing nut that engages with the fixing bolt, the fixing nut having a second stopper surface. The inner wall of the end of the through hole that engages with the fixing nut forms a second mating surface, the second stopper surface for positioning and mating with the second mating surface. Suitable.

Optionally, the stopper is a stopper ring provided around a threaded hole in the fixing nut, the outer diameter of the stopper ring decreasing along the axial direction of the fixing nut in a direction away from the fixing nut.

Optionally, the moving groove has a first groove section and a second groove section arranged above and below, and between the first groove section and the second groove section a positioning groove and an adjustment groove A connection surface is formed on which the and are provided.

Optionally, the positioning groove and the adjusting groove have the same shape in a cross section perpendicular to the extending direction of the moving groove, the first groove section has the same width as the upper end of the adjusting groove, and the The two groove sections have the same width as the lower end of the adjustment groove and the first groove section has a smaller width than the second groove section.

Optionally, the displacement groove has a depth greater than or equal to the length of the fixing bolt.

Optionally, the number of locating grooves is at least one.

The utility model further provides an engineering structural test platform comprising the above fixing device, wherein the number of moving grooves is plural, and the plurality of moving grooves are spaced apart from the fixed platform.

This utility model has the following merits.

1. The fixed platform is provided with a positioning groove and an adjustment groove, the fastening member in the positioning groove is immovable, and when fixedly connected with the model foundation, can be effectively and reliably positioned, and the adjustment groove The fastening member in the can adjust its own fixed position, so that the installation position of the fixed hole in the model foundation is not limited, and the fixed platform can be effectively adapted to the model foundation of different standards. This improves the versatility of the test platform, effectively solves the problem of low flexibility in the fixing method of the model foundation in the prior art, and ensures that the model foundation is fastened to the fixed platform without sliding. Secure and resolve the factors that limit the size of the engineering structural model.

2, the head is a truncated pyramid, the surface where the head is fixedly connected to the threaded rod is the top surface of the truncated pyramid, the sidewall of the head is composed of four inclined sidewalls, and the truncated pyramid is fitted It is possible to eliminate gaps and prevent rotation of the threaded rod and to better fit with the corresponding fastening member during installation or removal.

3. The fixing nut is provided with a stopper having a second stopper surface, the inner wall of the end of the through hole that engages with the fixing nut forms a second fitting surface, the second stopper surface: Suitable for positioning and fitting with the second mating surface, effectively eliminates play between the threaded rod and the through hole, locks the position of the fixing nut in a simple and reliable manner, and prevents slippage can be prevented.

4. The moving groove has a depth greater than the length of the fixing bolt, so that the fixing bolt can be left in the moving groove after the model foundation is removed, especially the fixing bolt in the positioning groove can be preserved in its original position. and does not impair the flatness of the upper surface of the fixed platform, does not require removal of fixing bolts, and does not affect various activities on the upper surface of the fixed platform.

In order to describe the specific embodiments of the present utility model or the technical solutions in the prior art more clearly, the following briefly describes the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. However, the accompanying drawings in the following description are part of the embodiments of the present utility model, and it is understood by those skilled in the art that other drawings can be obtained based on them without creative activities. would be clear to

Fig. 3 is a three-dimensional schematic diagram of a fixing device according to an embodiment of the present utility model; 2 is an exploded view of the fixation device of FIG. 1; FIG. FIG. 2 is a schematic front view of the fixing device of FIG. 1; FIG. 4 is a schematic cross-sectional view along AA of the fixing device of FIG. 3; FIG. 2 is an enlarged schematic diagram of a fixing nut of the fixing device of FIG. 1; The figure which shows the upper surface schematic diagram of the fixing device of FIG. FIG. 7 is a schematic cross-sectional view along BB of the fixing device of FIG. 6; FIG. 7 is a schematic cross-sectional view along CC of the fixing device of FIG. 6; FIG. 7 is a schematic cross-sectional view along DD of the fixing device of FIG. 6; FIG. 7 is a schematic cross-sectional view along EE of the fixing device of FIG. 6; FIG. 7 is a schematic cross-sectional view along EE of the fixing device of FIG. 6; 3D schematic diagram of an engineering structural test platform according to an embodiment of the present utility model; FIG. FIG. 13 is a partially enlarged schematic diagram of the engineering structural testing platform of FIG. 12;

The following clearly and completely describes the technical solution of the present utility model in conjunction with the drawings, but it is clear that the above embodiments are only a part of the embodiments in the present utility model, but not all of them. be. For those skilled in the art, other embodiments obtained without creative activities based on the embodiments of this utility model are all within the protection scope of this utility model.

In the description of this utility model, directions and positions indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The relationships are based on what is shown in the drawings and are merely to facilitate or simplify the description of the utility model, and the devices and elements referred to have specific orientations and specific orientations. It should not be construed as limiting the utility model, as it does not indicate or imply that it must be constructed or operated with Further, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of this utility model, unless expressly specified or restricted, the terms "mounted", "connected", "connected" may be, for example, a fixed connection, a detachable connection, or It may be an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate. Note that it is broadly understood to mean that there may be one or the other may be contiguous within the two elements. A person skilled in the art can understand the specific meaning of the above terms in the present utility model according to the specific situation.

It should be noted that the technical features of different embodiments of the utility model described below can be combined with each other as long as they do not contradict each other.

As shown in FIGS. 1 to 11, the fixing device according to this embodiment includes a fixing platform 10, a plurality of fastening members, a moving groove 30, a positioning groove 40, and an adjusting groove 50. is provided on the upper surface of the fixed platform 10 and penetrates to at least one side of the fixed platform, and a plurality of fastening members are suitable for moving within the moving groove 30 . The positioning groove 40 is provided on the inner wall of the moving groove 30 to form one mounting portion and is suitable for positioning one fastening member in the moving groove 30 . The adjusting groove 50 is provided on the inner wall of the moving groove 30 apart from the positioning groove 40 to form a continuous adjusting portion. and a fixed mating positioning state.

In the fixing device of this embodiment, the fixing platform 10 is provided with the positioning groove 40 and the adjustment groove 50, the fastening member in the positioning groove 40 cannot move, and when fixedly connected with the model foundation 60, the positioning is effective and reliable. , the fixing position of the fastening member in the adjusting groove 50 can be adjusted, so that the installation position of the fixing hole in the model foundation 60 is not limited, and the fixing platform 10 can be used with different standards of the model foundation 60 , which improves the versatility of the test platform, effectively solves the problem of low flexibility in the fixing method of the model foundation 60 in the prior art, and allows the model foundation 60 to slide The factors limiting the size of the engineering structure model 72 are resolved after ensuring that the engineering structural model 72 is not.

Specifically, fixed platform 10 is typically a high-strength concrete or steel structure.

In this embodiment, each fastening member has a fixing bolt 21 with a threaded rod 22 and a head 23, the positioning groove 40 is fitted with the head 23 of the corresponding fastening member, and the adjusting groove 50 is a corresponding Fitted with the head 23 of the fastening member, the positioning groove 40 can limit the movement of the fixing bolt 21 in both horizontal and vertical directions when fitted with the corresponding fastening member, thereby achieving the effect of fixing the position. . The fixing bolt 21 is adjusted to an appropriate position, can be engaged with the adjusting groove 50, can restrict movement in the adjusting groove 50 perpendicular to the extending direction and the vertical direction of the moving groove 30, and can be fixed. It has the effect of flexibly changing the position.

Specifically, the threaded rod 22 has a screw thread of a certain length at one end and is fixedly connected to the head 23 at the other end.

In this embodiment, the side wall of the head 23 is formed with a first stop surface that is provided at an angle to the axis of the threaded rod 22, and the inner wall of the positioning groove 40 and/or the inner wall of the adjusting groove 50 is formed with a first stop surface. forms a first mating surface and the first stop surface matches the first mating surface. Since the first stopper surface is provided at an angle to the axis of the threaded rod 22, when the first stopper surface and the first mating surface are mated, they can be brought into close contact, and the two contacts are formed. The surfaces can press against each other to form a good limited fit effect, effectively eliminating the play between the fastening member and the positioning groove 40 and the adjusting groove 50, locking the position of the fastening member and preventing slipping. This ensures that the model foundation 60 is firmly fixed to the fixed platform 10 to prevent slippage and also prevents out-of-plane swaying of the structural foundation.

Specifically, there is usually play between the trench holes and the fastening members in the conventional fixed platform 10 to facilitate installation of the fastening members, but the model foundation 60 with such a design is solid. When the load is large during testing, the presence of looseness will cause frequent slippage between the model foundation 60 and the fixed platform 10, which will seriously affect the accuracy of data collection.

Specifically, the specific structure of the head 23 is not particularly limited, and may be in the shape of a truncated pyramid, truncated cone, or the like. The inclination angle of the side wall of the head 23 is not particularly limited as long as it can be firmly pressed and positioned at times, and it is sufficient if it is easy to process and manufacture and has a high fitting effect.

Preferably, the head 23 is a truncated pyramid, the surface to which the head 23 is fixedly connected to the threaded rod 22 is the top surface of the truncated pyramid, the side walls of the head 23 are composed of four inclined side walls, The truncated pyramid can eliminate the fitting gap and prevent the threaded rod 22 from rotating, and can better fit with the corresponding fastening member during installation or removal. Alternatively, the truncated pyramid may be a truncated pyramid with five or more angles, and the shape of the inner walls of the positioning groove 40 and the adjusting groove 50 may be adjusted accordingly.

In this embodiment, the model foundation 60 is provided with a through hole 61 for the threaded rod 22 to pass through, and each fastening member further includes a fixing nut 24 that fits with the fixing bolt 21. , a stopper 25 having a second stopper surface is provided, the inner wall of the end of the through hole 61 that engages with the fixing nut 24 forms the second engagement surface, and the second stopper surface serves as the second stopper surface. It is suitable for positioning and fitting with the fitting surface 62, effectively eliminates looseness between the threaded rod 22 and the through hole 61, locks the position of the fixing nut 24 in a simple and reliable manner, and prevents slippage. to prevent

In this embodiment, the stopper 25 is a stopper ring provided around the screw hole of the fixing nut 24, and the outer diameter of the stopper ring decreases in the direction away from the fixing nut 24 along the axial direction of the fixing nut 24. When the fixing nut 24 is screwed onto the threaded rod 22 and comes into contact with the end surface of the model foundation 60, the second stopper surface can press the second fitting surface 62 closely, and the outer wall of the stopper ring is constant. , the positions of the threaded rod 22 and the fixing nut 24 can be better regulated, and the coaxiality between the axis of the fixing nut 24 and the fixed axis at the predetermined position can be ensured.

Specifically, the number of through-holes 61 in the model foundation 60 is two or more in order to secure the fixing effect of the model foundation 60 . The through-hole 61 has a hole diameter larger than the outer diameter of the threaded rod 22, and an annular recessed base is formed around the through-hole 61 at the end that is fitted with the fixing nut 24. The inner wall of the recessed base is A second mating surface 62 is formed to match the outer wall of the stopper ring.

Preferably, the stopper ring is a perforated truncated cone whose relatively large cross-section is connected to the fixing nut 24, and the truncated cone-shaped stopper ring ensures that the screwing process of the fixing nut 24 is not hindered. can be done. It is understood that, as an alternative embodiment, the stopper ring may be hemispherical with a hole. In addition, you may apply lubricating oil to a stopper ring for lubrication as needed.

In this embodiment, the moving groove 30 has a first groove section 31 and a second groove section 32 arranged above and below, between the first groove section 31 and the second groove section 32: The connection surface 33 with the positioning groove 40 and the adjustment groove 50 is formed, the structure is simple and clever, and the adjustable fixing range of the tightening member is achieved without greatly changing the original installation position of the moving groove 30. and effectively improve the tightening effect.

Specifically, the positioning groove 40 and the adjusting groove 50 extend in the direction in which the first groove section 31 is located with the plane in which the connecting surface 33 is located as a reference plane, and open downward inside the fixed platform 10 . A groove body is formed. The first groove section 31 has a width greater than the diameter of the threaded rod 22 to allow the threaded rod 22 to pass therethrough, and the second groove section 32 has the head 23 therein. It has a width greater than the maximum width of the head 23 so that it can be dragged and moved.

In this embodiment, the positioning groove 40 and the adjusting groove 50 have the same shape in the cross section perpendicular to the extending direction of the moving groove 30, and the first groove section 31 is the upper end of the adjusting groove 50 and the width of the adjusting groove 50. are the same, the second groove section 32 has the same width as the lower end of the adjustment groove 50, and the first groove section 31 has a smaller width than the second groove section 32 to facilitate machining. together with ensuring the entry of the head 23 into the second groove section 32, the positioning groove 40 and the adjusting groove 50 to allow the fastening member to be dragged therein so as to easily adjust its position.

Specifically, as shown in FIG. 2, the moving groove 30 is divided into an adjusting groove section and a stopper groove section in the extending direction, and the adjusting groove 50 is a dovetail groove opened in the extending direction of the moving groove 30. The portion between the adjusting groove section and the stopper groove section in the moving groove 30 forms a dovetail cut portion, and the upper base of the adjusting groove 50 is not smaller than the upper base of the head 23, so that the head 23 into the adjustment groove 50, the adjustment groove 50 is stopped by the cut portion of the dovetail groove in the length direction, the cross section is isosceles trapezoid, and the sandwich formed by the leg and the base in the cross section of the adjustment groove 50 is secured. The angle coincides with the included angle formed by the leg and the base in the cross section of the head 23, the positioning groove 40 is a truncated quadrangular pyramid, and the positioning groove 40 and the adjusting groove 50 are projected in the extending direction of the adjusting groove 50. Congruent at the same height. Here, the upper base refers to the short base of the trapezoid of the cross section of the adjusting groove 50 and the head 23, and the cross section refers to the cross section perpendicular to the extending direction of the adjusting groove 50. As shown in FIG.

In this embodiment, the depth of the moving groove 30 is greater than or equal to the length of the fixing bolt 21, so that the fixing bolt 21 can remain in the moving groove 30 after the model foundation 60 is removed, especially in the positioning groove 40. The fixing bolt 21 can be stored in its original position, does not impair the flatness of the upper surface of the fixed platform 10, does not require removal of the fixing bolt 21, and affects various activities on the upper surface of the fixed platform 10. do not have.

Specifically, the vertical upper portion of the moving groove 30 passes through the fixed platform 10, and the lower portion of the fixed platform 10 is the bottom surface 71 of the test platform. A sling ring may be attached to the end face of the rod 22 near the fixing nut 24 .

In this embodiment, the number of positioning grooves 40 is at least one, and at least one positioning groove 40 is spaced apart along the extending direction of the moving groove 30 .

Specifically, the positioning grooves 40 are distributed in the stopper groove section at intervals based on a constant modulus, the number of the positioning grooves 40 can be increased or decreased as required, and the adjustment grooves 50 provided in the section.

As shown in FIGS. 12 and 13, the present utility model is equipped with the above fixing device, the number of moving grooves 30 is plural, and the plurality of moving grooves 30 are spaced apart on the fixed platform 10 for engineering structural test Provide more platforms. In FIG. 11 , positions marked with a plurality of crosses on the fixed platform 10 schematically show the positions of the positioning grooves 40, which means that the fixed platform 10 is provided with circular holes. not a thing

Specifically, as shown in FIGS. 12 and 13, the structure provided on the model foundation 60 is an engineering structure model 72 .

As can be seen from the above description, the above-described embodiments of the present utility model have the following technical effects.

The fixed platform 10 is provided with a positioning groove 40 and an adjustment groove 50, the fastening member in the positioning groove 40 cannot move, and when fixedly connected with the model foundation 60, can be effectively and reliably positioned, and the adjustment groove 50 The fastening member in the can adjust the fixed position, so that the installation position of the fixed hole in the model foundation 60 is not limited, and the fixed platform 10 can be effectively adapted to the model foundation of different standards. , which improves the versatility of the test platform, ensures that the model foundation 60 does not slide, and solves the factors limiting the size of the engineering structural model 72 .

The first stopper surface is provided at an angle with respect to the axis of the threaded rod 22, and when the first stopper surface and the first mating surface are fitted together, they can be in close contact with each other, and the two The contact surfaces can press against each other to form a good limited fit effect, effectively eliminating the backlash between the fastening member and the positioning groove 40 and the adjusting groove 50, locking the position of the fastening member and preventing slippage. This ensures that the model foundation 60 is firmly fixed to the fixed platform 10 to prevent slippage and also prevents out-of-plane swaying of the structural foundation.

The moving groove 30 has a depth greater than or equal to the length of the fixing bolt 21, so that the fixing bolt 21 can remain in the moving groove 30 after the model foundation 60 is removed. , can be stored in its original position, does not impair the flatness of the upper surface of the fixed platform 10, does not require removal of the fixing bolt 21, and does not affect various activities on the upper surface of the fixed platform 10.

It is clear that the above examples are merely examples for the purpose of clarifying rather than limiting the embodiments. A person skilled in the art can make various modifications or changes based on the above description. It is neither necessary nor possible to cover all embodiments here. Obvious variations or modifications introduced therefrom are still covered by the scope of utility model protection.

23, head; 24, fixing nut; 25, stopper; 30, moving groove; 31, first groove section; 32, second groove section; 33, connecting surface; 40, positioning groove; 50, adjusting groove; 60, model foundation; 61, through hole; 62, second mating surface;

Claims (10)

Suitable for fixing a model foundation (60),
a fixed platform (10);
a plurality of fastening members;
a moving groove (30) provided on the upper surface of the fixed platform (10) and penetrating to at least one side surface of the fixed platform (10) and suitable for the movement of the plurality of fastening members; ,
a positioning groove (40) provided on the inner wall of the moving groove (30), forming one mounting portion, and suitable for positioning one of the fastening members in the moving groove (30);
adjustment grooves formed on the inner wall of the movement groove (30) apart from the positioning groove (40) to form a continuous adjustment portion, wherein at least one of the fastening members is located in the adjustment groove (50) and a positioning state in which the adjusting groove (50) is fixedly fitted;
A fixation device comprising: Each said fastening member comprises a fixing bolt (21) having a threaded rod (22) and a head (23), said positioning groove (40) fitting with the head (23) of the corresponding said fastening member. 2. A fixation device according to claim 1, characterized in that said adjusting groove (50) is fitted with the corresponding head (23) of said fastening member. The side wall of the head (23) forms a first stop surface, which is provided at an angle to the axis of the threaded rod (22), the inner wall of the positioning groove (40) and/or the adjusting groove (40). 3. A fixation device according to claim 2, characterized in that the inner wall of the groove (50) defines a first mating surface and said first stop surface matches said first mating surface. The model foundation (60) is provided with a through hole (61) for the threaded rod (22) to pass through, and each of the fastening members includes a fixing nut (24) fitted with the fixing bolt (21). wherein the fixing nut (24) is provided with a stopper (25) having a second stopper surface, and the inner wall of the end of the through-hole (61) that engages with the fixing nut (24): 3. The device according to claim 2, characterized in that it defines a second mating surface (62), said second stop surface being suitable for positioning and mating with said second mating surface (62). Fixed device. The stopper (25) is a stopper ring provided around the screw hole of the fixing nut (24), and the outer diameter of the stopper ring extends along the axial direction of the fixing nut (24). 5. A fixation device according to claim 4, characterized in that it tapers away from (24). Said moving groove (30) has a first groove section (31) and a second groove section (32) arranged above and below, said first groove section (31) and said second groove section (32), there is formed a connecting surface (33) on which the positioning groove (40) and the adjusting groove (50) are provided. 4. A fixation device as described in . The positioning groove (40) and the adjusting groove (50) have the same shape in a cross section perpendicular to the extending direction of the moving groove (30), and the first groove section (31) is: The width of the upper end of the adjusting groove (50) is the same, and the second groove section (32) is the same width as the lower end of the adjusting groove (50) and the first groove section (31). 7. A fixation device according to claim 6, characterized in that is smaller in width than said second groove section (32). The fixing device according to any one of claims 2 to 5, wherein the moving groove (30) has a depth equal to or greater than the length of the fixing bolt (21). The number of the positioning grooves (40) is at least one, and the at least one positioning groove (40) is spaced apart along the extending direction of the movement groove (30). Item 6. The fixing device according to any one of items 1 to 5. A fixing device according to any one of claims 1 to 5, wherein the number of said moving grooves (30) is plural, and a plurality of said moving grooves (30) are spaced apart from said fixing platform (10). An engineering structural test platform, comprising:

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