CN221010072U - Test support, test support assembly and test system - Google Patents

Abstract

The application relates to the technical field of testing of photovoltaic modules, and provides a test support, a test support module and a test system. The test support comprises a frame, a cushion block and a fixing piece; the frame is provided with a first mounting groove which is provided with a mounting opening; the cushion block is detachably arranged in the first mounting groove, the cushion block is provided with a second mounting groove, when the cushion block is mounted in the first mounting groove, the second mounting groove is positioned at one side of the cushion block facing the mounting opening, and the cross section shape of the second mounting groove is different from that of the first mounting groove; the fixing piece is arranged on one side of the frame forming the mounting opening and used for fixing the main beam in the first mounting groove or the second mounting groove. Thus, when the cushion block is removed, the test support can be correspondingly applicable to the main beam of the first mounting groove; when the cushion block is installed in the first installation groove, the test support can correspond to the main beam applicable to the second installation groove, so that the test support can at least correspond to the main beams with two cross-sectional shapes through the installation of the cushion block, and the utilization rate of the test support is improved.

Description

Test support, test support assembly and test system

Technical Field

The application relates to the technical field of photovoltaic module testing, in particular to a testing support, a testing support module and a testing device.

Background

With the development of the solar photovoltaic industry, more photovoltaic power stations are available. After production, the photovoltaic module in the photovoltaic power station generally needs to be subjected to sand pressure test, namely, wind load and snow load conditions are simulated in a static sand pressure mode to test the bearing condition of the photovoltaic module.

In a sand pressure testing system of a photovoltaic module, the sand pressure testing system generally comprises two testing brackets and a main beam, wherein the two testing brackets are used for supporting two ends of the main beam, and the photovoltaic module is installed on the main beam. The cross section of the common main beam for installing the photovoltaic module is generally circular, square or octagonal, for example, a common square tube main beam, a common round tube main beam and a common octagonal main beam.

In the prior art, each test support can only correspond to the main beam with one cross section shape, which is not beneficial to the resource utilization of the test support.

Disclosure of utility model

The application provides a test support, a test support assembly and a test system, which are used for solving the technical problem that the test support in the prior art is unfavorable for resource utilization.

In order to solve the above problems, the present application provides a test stand comprising:

A frame formed with a first mounting groove having a mounting opening;

The cushion block is detachably arranged in the first mounting groove, the cushion block is provided with a second mounting groove, when the cushion block is mounted in the first mounting groove, the second mounting groove and the cushion block face one side of the mounting opening, and the cross section shape of the second mounting groove is different from the cross section shape of the first mounting groove;

and the fixing piece is arranged at one end of the frame, which forms the mounting opening, and is used for fixing the main beam in the first mounting groove or the second mounting groove.

In some embodiments, the second mounting groove has opposing first and second sloped sidewalls with an opening forming an included angle between the first and second sloped sidewalls facing the mounting opening.

In some embodiments, the second mounting groove further has a bottom wall with a mounting through groove for a threaded fastener to pass through to detachably locate the spacer at the bottom of the first mounting groove.

In some embodiments, the first mounting groove is rectangular in cross-sectional shape.

In some embodiments, the mount comprises:

the fixing block is provided with a plurality of threaded holes, and the threaded holes are distributed along the extending direction perpendicular to the first mounting groove;

And the fixing bolts are respectively matched with the threaded holes and are used for being matched with the peripheral surface of the main beam so as to fix the main beam in the first mounting groove or the second mounting groove.

In some embodiments, the fixing block has a limiting groove, when the fixing block is disposed at one end of the frame forming the mounting opening, the limiting groove faces the first mounting groove, the limiting groove has a third inclined side wall and a fourth inclined side wall opposite to each other, and an opening forming an included angle between the third inclined side wall and the fourth inclined side wall faces the first mounting groove.

In some embodiments, at least one end of the fixing block has a positioning protrusion for positioning a horizontal position of the fixing block in an extending direction perpendicular to the first mounting groove.

In some embodiments, the fixing members are provided in two, the frame has positioning blocks, and two opposite end surfaces of the positioning blocks are used for positioning the mounting positions of the two fixing members in the extending direction along the first mounting groove.

The application also provides a test rack assembly comprising two test racks, any of which is described above.

The application also provides a test system which comprises a main beam and the test bracket assembly, wherein two test brackets in the test bracket assembly are supported at two ends of the main beam.

The beneficial effects of the embodiment of the application are as follows: the application provides a test support which comprises a frame, a cushion block and a fixing piece. Wherein the frame is formed with a first mounting groove, and the first mounting groove is provided with a mounting opening; the cushion block is detachably arranged in the first mounting groove, the cushion block is provided with a second mounting groove, when the cushion block is mounted in the first mounting, the second mounting groove is positioned at one side of the cushion block facing the mounting opening, and the cross section shape of the second mounting groove is different from that of the first mounting groove; the mounting is arranged at one end of the frame forming the mounting opening and is used for fixing the main beam in the sand pressure testing system in the first mounting groove or the second mounting. Thus, by detachably providing the pad at the bottom of the first mounting groove and providing the pad with the second mounting groove, the test stand can mount the main beam having a cross-sectional shape suitable for the first mounting groove when the pad is removed from the bottom of the first mounting groove; when the cushion block is installed at the bottom of the first installation groove, the main beam is installed in the first installation groove, which is equivalent to the main beam installed in the second installation groove, at the moment, the test support can be installed on the main beam with the cross section suitable for the second installation groove, so that the test support can be installed through the cushion block or not, at least the main beams with the two cross section can be corresponding, the utilization rate of the test support is improved, and the test cost of the photovoltaic module is saved.

When the first mounting groove is rectangular, the second mounting groove is provided with a first inclined side wall and a second inclined side wall which are opposite, an opening forming an included angle between the first inclined side wall and the second inclined side wall faces the mounting opening, and no cushion block exists, the test support can be used for mounting a main beam with a rectangular cross section; when the cushion block is installed in the first installation groove, the test support can be installed on the main beam with the cross section being round or regular octagon, so that the test support can be applicable to more common main beams.

And the cushion block can be directly fixed in the first mounting groove through the threaded fastener, and the disassembly and the mounting operation of the cushion block are convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic structural diagram of a test system in which a test stand according to an embodiment of the present application is applied to a photovoltaic module;

FIG. 2 is a schematic perspective view of a test stand according to an embodiment of the present application;

FIG. 3 is a schematic view of a frame in a test rack according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a pad in a test stand according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a fixing member in a test stand according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a square tube main beam installed on a test stand according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a main beam of a test rack for mounting a round tube according to an embodiment of the present application;

Fig. 8 is a schematic structural view of a test stand for mounting an octagonal main beam according to an embodiment of the application.

In the figure: 100. testing a bracket; 10. a frame; 11. a first mounting groove; 111. a mounting port; 12 handles; 13. a bottom plate; 14. a cushion pad; 15. a positioning block; 20. a cushion block; 21. a second mounting groove; 21a, a first sloped sidewall; 21b, a second sloped sidewall; 21c, a bottom wall; 22. installing a through groove; 30. a fixing member; 31. a fixed block; 311. a threaded hole; 312. a through hole; 313. a limit groove; 313a, a third sloped sidewall; 313b, fourth sloped side walls; 314. positioning the bulge; 32. a fixing bolt; 200. a main beam; 300. a photovoltaic module; 400. sand bags.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a test system with a test stand applied to a photovoltaic module according to an embodiment of the application. The application provides a test bracket 100 which can be applied to a support girder 200 in a test system of a photovoltaic module 300. It will be appreciated that when the test rack 100 is used to support the main beams 200, two test racks 100 are provided, and two ends of the main beams 200 are disposed on the test rack 100, so as to support the main beams 200 by the test rack 100. Then, the photovoltaic module 300 to be tested is arranged on the main beam 200, and then the sand bag 400 is placed on the photovoltaic module 300, so that sand pressure test of the photovoltaic module 300 can be realized.

Referring to fig. 2 to fig. 4 together, fig. 2 is a schematic perspective view of a test rack according to an embodiment of the present application, fig. 3 is a schematic view of a frame in a test rack according to an embodiment of the present application, and fig. 4 is a schematic view of a cushion block in a test rack according to an embodiment of the present application.

The test stand 100 provided by the present application includes a frame 10, a pad 20, and a fixture 30. Wherein the frame 10 is formed with a first mounting groove 11, the first mounting groove 11 having a mounting opening 111. The cushion block 20 is detachably arranged in the first mounting groove 11. The spacer 20 has a second mounting groove 21. When the spacer 20 is mounted in the first mounting groove 11, the second mounting groove 21 is located on the side of the spacer 20 facing the mounting opening 111. The cross-sectional shape of the second mounting groove 21 is different from the cross-sectional shape of the first mounting groove 11. The fixing member 30 is provided at one end of the frame 10 where the mounting opening 111 is formed, for fixing the girder 200 in the first mounting groove 11 or the second mounting groove 21. The cross-sectional shape of the first mounting groove 11 is a cross-sectional shape perpendicular to the extending direction of the first mounting groove 11, and the cross-sectional shape of the second mounting groove 21 is a cross-sectional shape perpendicular to the extending direction of the second mounting groove 21. It will be appreciated that the extending direction of the first mounting groove 11 is the direction of the central axis of the main beam 200 when the main beam 200 is engaged with the first mounting groove 11, and the extending direction of the second mounting groove 21 is the direction of the central axis of the main beam 200 when the main beam 200 is engaged with the second mounting groove 21.

It should be noted that, the fixing member 30 in the test stand 100 is disposed at one end of the frame 10 where the mounting opening 111 is formed, and is used to fix the main beam 200 in the first mounting groove 11 or the second mounting groove 21, and it is understood that when the test stand 100 is used to support the main beam 200, the end portion of the main beam 200 is disposed and mounted in the first mounting groove 11 or the second mounting groove 21. The fixing member 30 fixes the girder 200 in the first mounting groove 11 means that when the test stand 100 needs to install the girder 200 having a cross-sectional shape suitable for the first mounting groove 11, the spacer 20 is removed from the first mounting groove 11, the girder 200 is directly embedded in the first mounting groove 11, and then the fixing member 30 fixes the girder 200 in the first mounting groove 11 from the mounting hole 111 of the first mounting groove 11. The fixing member 30 fixes the girder 200 to the second mounting groove 21 means that when the test stand 100 needs to install the girder 200 having a cross-sectional shape suitable for the second mounting groove 21, the pad 20 is installed in the first mounting groove 11, for example, but not limited thereto, the bottom of the first mounting groove 11, the girder 200 may be installed in the second mounting groove 21, and then the fixing member 30 may fix the girder 200 to the second mounting groove 21 at the mounting opening 111 of the first mounting groove 11, that is, fix the girder 200 between the pad 20 and the fixing member 30. Wherein the cross-sectional shape of the main beam 200 is adapted to the cross-sectional shape of the first mounting groove 11 or the cross-sectional shape of the main beam 200 is adapted to the cross-sectional shape of the second mounting groove 21, it is not necessarily required that the cross-sectional shape of the main beam 200 corresponds to the cross-sectional shape of the first mounting groove 11. For example, the arc-shaped groove may be provided with the girder 200 having a circular or semicircular cross section; the V-shaped groove may mount the girder 200 having a triangular, circular, regular hexagonal or regular octagonal cross section; the trapezoidal groove may mount the girder 200 having a circular, regular hexagonal or regular octagonal cross section.

The frame 10 forms a first mounting groove 11. The present application is not limited to the specific structure of the frame 10, and for example, the frame 10 may be welded from rectangular pipe profiles. To secure the supporting area and the supporting strength of the frame 10 to the girder 200, three rectangular tube profiles may be provided at the position where the frame 10 forms the first installation groove 11 in the direction of the central axis of the girder 200. Handles 12 may also be provided on the sides of the frame 10 to facilitate handling of the test rack 100. To secure the support stability of the test rack 100, the bottom of the frame 10 may also be provided with a bottom plate 13. A cushion pad 14 may be further disposed under the bottom plate 13, and for example, the cushion pad 14 may be a rubber pad, but is not limited thereto. When the cushion pad 14 is a rubber pad, on one hand, the cushion pad plays a role in buffering the test system, and on the other hand, the friction force between the test support 100 and the ground can be increased, so that the stability of the test support 100 for supporting the main beam 200 is improved.

The first mounting groove 11 has a mounting opening 111. It will be appreciated that the mounting opening 111 is used to nest the main beam 200 in either the first mounting slot 11 or the second mounting slot 21. Taking the placing state of the test stand 100 in normal use as an example, in order to facilitate the installation of the main beam 200, the installation opening 111 of the first installation groove 11 may be disposed upward, that is, the first installation groove 11 is a groove formed at the upper end of the frame 10. In this way, the fixing members 30 fix the main beam 200 from the circumferential surface of the main beam 200 when the main beam 200 is fixed to the first mounting groove 11 or the second mounting groove 21. Of course, to avoid that the error of the placement distance between the two test brackets 100 affects the installation of the main beam 200, the first installation groove 11 may be a through groove at the same time.

The main beam 200 used in the sand compaction test of the photovoltaic module 300 generally has a rectangular cross-sectional shape with the largest outer diameter dimension of the main beam 200. In some embodiments, the first mounting groove 11 may be rectangular in cross-sectional shape. The shape of the first mounting groove 11 may be formed by three rectangular tube profiles vertically connected end to end. The specific size of the cross section of the first mounting groove 11 may be set according to the size of the main beam 200 having a rectangular cross section. It will be appreciated that when the cross-sectional shape of the first mounting groove 11 is rectangular, and the pad 20 is not provided in the first mounting groove 11, the test stand 100 may mount the girder 200 having a cross-section corresponding to the cross-sectional shape of the first mounting groove 11. The typical rectangular cross-section girder 200 is a square tube girder, and the test rack 100 can be installed with a square tube girder. The structure of the test stand 100 mated with the square tube main beam is shown in fig. 6.

The typical girders 200 also include round tube girders and octagonal girders. The diameter of the circular tube girder in the conventional girder 200 is generally smaller than the side length of the square tube girder, and the distance between the opposite sides of the octagonal girder is also generally smaller than the side length of the square tube girder. The diameter of the circular pipe main beam, the side length of the square pipe main beam and the distance between the two opposite sides of the octagonal main beam all refer to the corresponding outermost peripheral dimension.

The spacer 20 has a second mounting groove 21 on a side facing the mounting opening 111, and the cross-sectional shape of the second mounting groove 21 is different from that of the first mounting groove 11, so that when the spacer 20 is disposed at the bottom of the first mounting groove 11, the main beam 200 can be fitted into the second mounting groove 21 while the main beam 200 is mounted.

As shown in fig. 4, in some embodiments, the second mounting groove 21 of the spacer 20 may have opposing first and second sloped sidewalls 21a and 21b. The opening forming an angle between the first inclined side wall 21a and the second inclined side wall 21b is directed toward the mounting opening 111. So that a circular pipe girder and an octagonal girder can be inserted between the first inclined sidewall 21a and the second inclined sidewall 21b. The inclination angles and the relative distances of the first inclined side wall 21a and the second inclined side wall 21b may be set according to the cross-sectional dimensions of the circular pipe main beam and the octagonal main beam. The structure of the test stand 100 matched with the circular pipe main beam is shown in fig. 7, and the structure of the test stand 100 matched with the octagonal main beam is shown in fig. 8.

When the second mounting groove 21 of the spacer 20 has opposite first and second inclined side walls 21a and 21b, the second mounting groove 21 may be a V-shaped groove or a trapezoidal groove.

The cushion block 20 is detachably arranged at the bottom of the first mounting groove 11. The cushion block 20 may be detachably disposed by a snap fit or a screw fastener, but is not limited thereto. As shown in fig. 4, in some embodiments, the second mounting groove 21 also has a bottom wall 21c. It will be appreciated that in this embodiment, the second mounting groove 21 is a trapezoidal groove. The bottom wall 21c of the second mounting groove 21 has a mounting through groove 22. The mounting through groove 22 is used for passing a threaded fastener to detachably arrange the cushion block 20 at the bottom of the first mounting groove 11. Correspondingly, it is understood that a screw hole 311 may be provided at the bottom of the first mounting groove 11. When the threaded fastener is engaged with the threaded hole 311 through the mounting through-slot 22, the threaded fastener may be a bolt or a screw, for example, but not limited thereto, the threaded fastener may be a hexagon head bolt, a cylinder head screw, or a countersunk head screw.

It should be noted that, for the commonly used square tube girder, round tube girder and octagonal girder, the outer diameter size of the round tube girder may be the largest or the outer diameter size of the octagonal girder may be the largest. For example, when the outer diameter of the round tube main beam is greater than that of the octagonal main beam and the square tube main beam, the first installation groove 11 may be an arc groove, the cushion blocks 20 are installed in the arc groove, so that the shape of the second installation groove 21 is applicable to both the octagonal main beam and the square tube main beam, or the test stand may be provided with two cushion blocks 20, so that the shape of the second installation groove 21 of one cushion block 20 is applicable to the square tube main beam, for example, the second installation groove 21 may be a rectangular groove, and the shape of the second installation groove 21 of the other cushion block 20 is applicable to the octagonal main beam, for example, the second installation groove 21 may be a trapezoid groove.

To ensure the stability of the installation of the spacer 20 and the convenience of the disassembly and installation operations of the spacer 20, the spacer 20 may be fixed to the bottom of the first installation groove 11 by two screw fasteners such that the line between the two screw fasteners is perpendicular to the central axis of the girder 200. In some embodiments, the mounting through groove 22 may be a kidney-shaped hole, so that after the connecting threaded fastener passes through the mounting through groove 22 and is matched with the threaded hole 311 at the bottom of the first mounting groove 11, the nut of the threaded fastener may not be tightly abutted against the cushion block 20, so that the mounting position of the cushion block 20 may be adjusted along the central axis direction of the two threaded fasteners, and the influence on the mounting of the main beam 200 when the test brackets 100 at two ends of the main beam 200 have position deviation along the central axis direction of the main beam 200 is avoided.

The fixing member 30 is provided at one end of the frame 10 where the mounting opening 111 is formed, for fixing the girder 200 in the first mounting groove 11 or the second mounting groove 21. When the mounting opening 111 of the first mounting groove 11 is provided upward, the fixing member 30 at the mounting opening 111 corresponds to a side wall forming the first mounting groove 11. That is, when the fixing member 30 fixes the main beam 200 to the first mounting groove 11 or the second mounting groove 21, the fixing member 30 fixes the main beam 200 to the peripheral surface of the main beam 200. When the girder 200 is inserted into the first mounting groove 11 or the second mounting groove 21, the fixing member 30 mainly restricts the movement of the girder 200 along the central axis direction thereof, and of course, for the circular pipe girder 200, also restricts the rotation thereof about the central axis. The fixing members 30 may fix the girder 200 on the circumferential surface of the girder 200 by clamping the girder 200 from the circumferential surface of the girder 200, but the girder 200 may be fixed in the first mounting groove 11 or the second mounting groove 21 by coupling a shaft with a hole or a protrusion with a groove, but is not limited thereto.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a fixing member in a test stand according to an embodiment of the application. In some embodiments, the securing member 30 includes a securing block 31 and a number of securing bolts 32. The fixing block 31 has a plurality of threaded holes 311 matched with the fixing bolts 32, and the fixing bolts 32 are respectively matched with the threaded holes 311. The plurality of screw holes 311 are distributed in a direction perpendicular to the extending direction of the first mounting groove 11. Since the main beam 200 is mounted in the first mounting groove 11 or the second mounting groove 21, the central axis of the main beam 200 is disposed along the extending direction of the first mounting groove 11, that is, after the main beam 200 is disposed in the first mounting groove 11 or the second mounting groove 21, the plurality of threaded holes 311 are distributed in one or more rows along the direction perpendicular to the central axis of the main beam 200. After the fixing bolts 32 pass through the screw holes 311, the main beam 200 is clamped and fixed in the first mounting groove 11 or the second mounting groove 21 by one end of the fixing bolts 32 abutting against the circumferential surface of the main beam 200. Of course, one end of the fixing bolt 32 passing through the screw hole 311 may extend into the girder 200 from the circumferential surface of the girder 200 to fix the girder 200.

In this embodiment, since the test stand 100 can mount the girders 200 with various cross-sectional shapes, taking the cross-sectional shape of the first mounting groove 11 as a rectangle and the second mounting groove 21 as a trapezoid as an example, the test stand 100 can mount at least square-tube girders, round-tube girders, and octagonal girders. By providing a plurality of screw holes 311 distributed along the extending direction perpendicular to the first mounting groove 11 on the fixing block 31 and then passing a plurality of fixing bolts 32 through the screw holes 311 to fix the circumference of the girder 200, the fixing member 30 can be adapted to girders 200 of different cross-sectional shapes by adjusting the length of the fixing bolts 32 passing through the screw holes 311. Thus, when the main beams 200 with different cross-sectional shapes are installed on the test support 100, only the cushion blocks 20 are removed, the fixing pieces 30 are not required to be replaced, the cost of the test support 100 is saved, and the utilization rate of the test support 100 is improved.

In some embodiments, the fixed block 31 also has a limit slot 313. When the fixing block 31 is disposed at one end of the frame 10 where the mounting opening 111 is formed, the limiting groove 313 faces the first mounting groove 11. The stopper groove 313 may be formed on one side surface of the fixing block 31, and when the fixing block 31 is provided to the frame 10, the side of the fixing block 31 having the stopper groove 313 may be directed toward the first mounting groove 11. The limiting groove 313 has opposite third and fourth inclined side walls 313a and 313b. The opening forming an angle between the third inclined side wall 313a and the fourth inclined side wall 313b is directed toward the first mounting groove 11. In this case, the limiting groove 313 may be a V-groove or a trapezoid groove. To reduce the thickness of the fixing block 31 and the length of the fixing bolt 32, the limit groove 313 may be a trapezoid groove. In this embodiment, as shown in fig. 5, the limit groove 313 is taken as an example of a trapezoid groove, and when the limit groove 313 is a trapezoid groove, as shown in fig. 6, the side surface of the test stand 100 facing the first installation groove 11 may be matched with the side surface of the square pipe main beam when the square pipe main beam is installed; as shown in fig. 7 and 8, when the test stand 100 is mounted on the circular pipe girder or the octagonal girder, the circumferential surface of the circular pipe girder or the octagonal girder may be engaged with the limiting groove 313, and the limiting groove 313 and the second mounting groove 21 jointly limit the circumferential direction of the circular pipe girder or the octagonal girder.

The fixing block 31 is provided at one end of the frame 10 where the mounting port 111 is formed. Since the main beam 200 is generally required to be placed in the first mounting groove 11 from the mounting opening 111 when the main beam 200 is mounted, it is understood that the fixing block 31 may be movably disposed at a position where the mounting opening 111 is formed in the frame 10, for example, the fixing block 31 may be rotatably, movably or detachably disposed at a position where the mounting opening 111 is formed in the frame 10, but is not limited thereto.

As shown in fig. 3 and 5, in some embodiments, the fixing block 31 is detachably provided at one end of the frame 10 where the mounting opening 111 is formed. For example, through holes 312 may be provided at both ends of the fixing block 31, screw mounting holes may be provided at corresponding positions of the frame 10, and the fixing block 31 may be detachably provided to the frame 10 by bolts passing through the fixing block 31. In order to ensure that the fixing block 31 can be quickly and accurately installed in place during installation, at least one end of the fixing block 31 is provided with a positioning protrusion 314, i.e. the fixing block 31 is L-shaped as a whole. When the fixing block 31 is mounted, the positioning projection 314 is made to abut against the side surface of the frame 10 at the end where the mounting opening 111 is formed, so that the positioning projection 314 can position the fixing block 31 in a horizontal position in the extending direction perpendicular to the first mounting groove 11.

As shown in fig. 2 and 3, in some embodiments, in order to secure the end of the girder 200 in the first mounting groove 11 or the second mounting groove 21, two fixing pieces 30 may be provided such that the fixing pieces 30 are located at both ends of the mounting hole 111. The end of the frame 10 forming the mounting opening 111 may be provided with a positioning block 15. The opposite end surfaces of the positioning block 15 are positioned to the mounting positions of the two fixing pieces 30 in the extending direction of the first mounting groove 11. The positioning block 15 may be disposed on a side surface of the frame 10 forming one end of the mounting opening 111, and when the fixing block 31 is mounted, the positioning protrusion 314 is abutted against the side surface of the frame 10 forming one end of the mounting opening 111 in the extending direction perpendicular to the first mounting groove 11, and simultaneously, the positioning protrusion 314 is abutted against the end surface of one end of the positioning block 15 in the extending direction along the first mounting groove 11, thereby completing the mounting and positioning of the fixing member 30. So that the test stand 100 can quickly complete the installation of the fixing member 30 when the girder 200 is installed.

In some embodiments, the present application also provides a test rack 100 assembly, the test rack 100 assembly comprising two of the test racks 100 of the above embodiments. When the test stand 100 assembly is used for supporting the main beam 200, two test supports in the test stand 100 assembly are symmetrically arranged at two ends of the main beam 200.

In other embodiments, the present application also provides a testing system that includes a main beam 200 and the test rack 100 assembly of the above embodiments. Wherein the main beams 200 are used to mount the photovoltaic module 300. Two test brackets 100 among the test bracket 100 assemblies are supported at both ends of the main girder 200.

Taking the cross-sectional shape of the first mounting groove 11 in the test rack 100 as a rectangle and the cross-sectional shape of the second mounting groove 21 as a trapezoid as an example in the test rack 100 assembly, the main beam 200 in the test system may be a square tube main beam, a round tube main beam or an octagonal main beam. When the main beam 200 is a square pipe main beam 200, the cushion block 20 at the bottom of the first installation groove 11 needs to be removed when the main beam 200 is installed, and the main beam 200 is directly placed in the first installation groove 11. When the girder 200 is a circular pipe girder or an octagonal girder 200, it is necessary to secure the head block 20 to the bottom of the first installation groove 11 and then place the girder 200 in the second installation groove 21 of the head block 20 when installing the girder 200.

In the test stand 100 assembly and the test system provided by the application, all the technical schemes of all the embodiments of the test stand 100 are adopted, so that the test stand 100 assembly and the test system at least have all the beneficial effects brought by the technical schemes of the embodiments of the test stand 100, and are not repeated herein.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the application.

Claims (10)

1. A test rack, the test rack comprising:

A frame formed with a first mounting groove having a mounting opening;

The cushion block is detachably arranged in the first mounting groove, the cushion block is provided with a second mounting groove, when the cushion block is mounted in the first mounting groove, the second mounting groove is positioned at one side of the cushion block facing the mounting opening, and the cross section shape of the second mounting groove is different from that of the first mounting groove;

and the fixing piece is arranged at one end of the frame, which forms the mounting opening, and is used for fixing the main beam in the first mounting groove or the second mounting groove.

2. The test rack of claim 1, wherein the second mounting slot has opposed first and second sloped sidewalls, the first and second sloped sidewalls forming an included angle therebetween that opens toward the mounting opening.

3. The test rack of claim 2, wherein the second mounting channel further has a bottom wall with a mounting channel for a threaded fastener to pass through to removably position the spacer at the bottom of the first mounting channel.

4. The test rack of claim 1, wherein the first mounting slot is rectangular in cross-sectional shape.

5. The test rack of any one of claims 1-4, wherein the mount comprises:

the fixing block is provided with a plurality of threaded holes, and the threaded holes are distributed along the extending direction perpendicular to the first mounting groove;

And the fixing bolts are respectively matched with the threaded holes and are used for being matched with the peripheral surface of the main beam so as to fix the main beam in the first mounting groove or the second mounting groove.

6. The test rack of claim 5, wherein the fixed block has a limiting groove, wherein the limiting groove faces the first mounting groove when the fixed block is disposed at one end of the frame forming the mounting opening, wherein the limiting groove has a third inclined side wall and a fourth inclined side wall opposite to each other, and wherein an opening forming an included angle between the third inclined side wall and the fourth inclined side wall faces the first mounting groove.

7. The test rack of claim 5, wherein at least one end of the fixing block has a positioning protrusion for positioning a horizontal position of the fixing block in a direction perpendicular to an extension direction of the first mounting groove.

8. The test rack of claim 1, wherein two of said fixtures are provided, said frame having positioning blocks, opposite end surfaces of said positioning blocks being used to position mounting positions of two of said fixtures in an extending direction along said first mounting groove.

9. A test rack assembly comprising two test racks according to any one of claims 1-8.

10. A test system comprising a main beam and the test rack assembly of claim 9, two of the test racks in the test rack assembly being supported at both ends of the main beam.