Connecting fitting and heliostat

Abstract

The invention discloses a connecting fitting and a heliostat. The connecting fitting comprises a rotatable connecting rod and a height-adjustable assembly. The rotatable connecting rod comprises a connecting end and an arc-surface rotating end which are oppositely arranged in the extending direction of the rotatable connecting rod, and the connecting end is fixed to the first component. The height-adjustable assembly comprises a main body structure which is located on the side, away from the first component, of the rotatable connecting rod, and the main body structure is connected with the second component. The surface of one side, facing the rotatable connecting rod, of the main body structure comprises a groove, and the cambered surface rotating end is located in the groove. By adopting the scheme, the connecting stress between the connecting fitting and the heliostat component can be reduced, so that the influence of external force on the component is reduced, the heliostat component is prevented from being broken due to stress, the cost of the heliostat is reduced, and the service life of the heliostat is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of heliostats, and in particular to a connecting accessory and a heliostat. Background Art

[0002] The connecting screws of existing heliostats are straight metal screws, which can achieve height adjustment in two-dimensional space. The lens is in a curved state. As the lens surface changes, the screw or connecting piece connected to the lens actually changes in three-dimensional space position (including height change and change in angle with the lens). The connection between the straight screw and the connecting piece cannot meet the three-dimensional position change. During the use of the heliostat, if the angle between the lens and the screw changes, a deformation stress will be formed between the screw and the lens. This stress is concentrated on the connection position between the lens and the screw, that is, there is a "struggle" problem between the lens and the screw, which causes the lens to deform and break. For glass lenses with poor toughness, the probability of lens breakage increases. In addition, the lens and the mirror holder are generally connected by multiple screws. When the stress direction and magnitude between different screws and lenses are inconsistent, the superposition of stress waves may accelerate the rupture of the lens. In addition, since the heliostat is used in the external environment, it is affected by other factors such as external climate changes and strong winds, and the heliostat components have certain deformations (such as thermal expansion and contraction, plastic deformation, etc.). At this time, the stress exerted by the screw on the lens will greatly increase the risk of lens breakage, seriously affecting the service life of the lens and increasing the cost of lens use. Summary of the invention

[0003] Based on the above defects of the prior art, the present invention provides a connecting accessory and a heliostat to reduce the influence of external force on the lens, avoid the lens from being broken by force, and thus reduce the cost of the heliostat.

[0004] In a first aspect, the present invention provides a connection accessory for a heliostat, wherein the heliostat comprises a lens, a lens holder and a lens frame, wherein the connection accessory is connected between different components of the heliostat, wherein the different components in the heliostat comprise a first component and a second component, wherein the first component comprises at least one of the lens and the lens holder, and the second component comprises at least one of the lens holder and the lens frame;

[0005] The connecting fitting comprises a rotatable connecting rod and a height-adjustable component:

[0006] The rotatable connecting rod comprises a connecting end and an arc surface rotating end which are arranged opposite to each other along the extending direction of the rotatable connecting rod, and the connecting end is fixed to the first component;

[0007] The height adjustable assembly comprises a main body structure, the main body structure is located on a side of the rotatable connecting rod away from the first component, and the main body structure is connected to the second component;

[0008] A side surface of the main structure facing the rotatable connecting rod comprises a groove, and the arc surface rotating end is located in the groove.

[0009] In a second aspect, the present invention further provides a heliostat, comprising the connection fittings, lenses, mirror holders and mirror frames provided in the first aspect of the present invention;

[0010] The first component includes at least one of the lens and the mirror base, and the second component includes at least one of the mirror base and the mirror frame.

[0011] By adopting the solution of the present invention, the connection stress between the connection accessories and the heliostat components can be reduced, thereby reducing the influence of external forces on the heliostat components (such as lenses), avoiding the lenses from being broken by force, reducing the cost of the heliostat, and further improving the service life of the heliostat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a heliostat reflector unit provided in an embodiment of the present invention;

[0013] Figure 2 A schematic diagram of the structure of a connection accessory provided by an embodiment of the present invention;

[0014] Figure 3 A connection diagram of a connection accessory provided by an embodiment of the present invention;

[0015] Figure 4 A schematic diagram of the structure of a sleeve provided in an embodiment of the present invention;

[0016] Figure 5 A schematic diagram of the structure of an inner core provided by an embodiment of the present invention;

[0017] Figure 6 A schematic structural diagram of another connection accessory provided by an embodiment of the present invention;

[0018] Figure 7 A schematic diagram of the structure of another inner core provided by an embodiment of the present invention;

[0019] Figure 8 A schematic diagram of the structure of another inner core provided by an embodiment of the present invention;

[0020] Fig. 9 A schematic diagram of the structure of another inner core provided by an embodiment of the present invention;

[0021] Fig.10 A structural schematic diagram of another connection accessory provided by an embodiment of the present invention;

[0022] Fig.11 A schematic structural diagram of a rotatable connecting rod provided by an embodiment of the present invention;

[0023] Fig.12 A schematic diagram of the structure of another connection accessory provided by an embodiment of the present invention;

[0024] Fig.13 A schematic diagram of the structure of a connection assembly provided by an embodiment of the present invention;

[0025] Fig.14 A schematic structural diagram of another rotatable connecting rod provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0028] Generally, a heliostat is composed of several small-area reflector units. Figure 1 A schematic diagram of a heliostat reflector unit provided in an embodiment of the present invention, referring to Figure 1 The reflector unit of the heliostat includes structures such as a lens 01, a lens holder 02 and a lens frame 03 (such as a purlin), and the lens holder 02 is connected between the lens 01 and the lens frame 03. Two mutually connected components in the heliostat can be connected by the connecting fittings of the present invention.

[0029] Figure 2 A schematic diagram of the structure of a connection accessory provided by an embodiment of the present invention, Figure 3 A connection diagram of a connection accessory provided by an embodiment of the present invention, Figure 2 and Figure 3 The following are cross-sectional views of the connection accessories. Figure 1 to Figure 3In the embodiment of the present invention, the connection accessory 04 is connected between different accessories of the heliostat. Different components in the heliostat can be defined as the first component A and the second component B. The first component A includes at least one of the lens 01 and the mirror holder 02, and the second component B includes at least one of the mirror holder 02 and the mirror frame 03. The connection accessory 04 is used to connect the first component A and the second component B. Exemplarily, in some embodiments, the first component A can be the lens 01, and the second component B can be the mirror holder 02, or, in other embodiments, the first component A can be the mirror holder 02, and the second component B can be the mirror frame 03, but it is not limited thereto. The first component A and the second component B can be connected through a plurality of connection accessories 04, and the existence of the connection accessories 04 can adjust the relative position relationship between the first component A and the second component B. Figure 1 Nine connecting accessories 04 between the lens 01 and the mirror holder 02, and three connecting accessories 04 between the mirror holder 02 and the frame 03 are shown as examples, but the invention is not limited thereto. The connecting accessories 04 between the lens 01 and the mirror holder 02 can be used to adjust the distance and relative angle between the lens 01 and the mirror holder 02, thereby adjusting the curvature (i.e., the curved surface shape) of the lens 01; the connecting accessories 04 between the mirror holder 02 and the frame 03 can be used to adjust the distance and relative angle between the mirror holder 02 and the frame 03, thereby adjusting the orientation and / or height of the lens 01.

[0030] refer to Figure 1 to Figure 3 As shown, the connecting accessory 04 includes a rotatable connecting rod 100 and a height-adjustable component 200: the rotatable connecting rod 100 includes a connecting end 101 and an arc-shaped rotating end 102 which are relatively arranged along the extension direction of the rotatable connecting rod 100, the connecting end 101 is fixed to the first component A, and the extension direction of the plane where the first component A is located intersects with the extension direction of the rotatable connecting rod 100; the height-adjustable component 200 includes a main structure 210, the main structure 210 is located on the side of the rotatable connecting rod 100 away from the first component A, the main structure 210 is connected to the second component B, and the extension direction of the plane where the second component B is located intersects with the extension direction of the main structure 210; the surface of the main structure 210 on one side facing the rotatable connecting rod 100 includes a groove 201, and the arc-shaped rotating end 102 is located in the groove 201.

[0031] like Figure 1 to Figure 3 As shown, taking the connecting accessory 04 between the lens 01 and the lens holder 02 as an example, the first component A can refer to the lens 01, and the second component B can refer to the lens holder 02. The connecting end 101 and the arc surface rotating end 102 of the rotatable connecting rod 100 are two ends arranged opposite to each other along the extension direction of the rotatable connecting rod 100, and the connecting end 101 and the arc surface rotating end 102 are arranged integrally. The connecting end 101 is the part of the rotatable connecting rod 100 close to the first component A, and the arc surface rotating end 102 is the part of the rotatable connecting rod 100 close to the second component B.

[0032] Among them, the connecting end 101 is fixed to the first component A, and the specific fixing method of the two is not limited. Technical personnel in this field can set it according to actual needs, but it is necessary to ensure that after the first component A is fixed, the plane where the first component A is located can intersect with the extension direction of the rotatable connecting rod 100. Figure 3 FIG. 1 shows that the rotatable connecting rod 100 is perpendicular to the first component A, but the present invention is not limited thereto.

[0033] For example, Figure 3 In the illustrated embodiment, a surface of the connection end 101 facing away from the arc-shaped rotating end 102 can be fixed to the surface of the first component A. The specific fixing method is not limited and can be configured by those skilled in the art according to actual needs. Figure 3 In the illustrated embodiment, the connection accessory 04 further includes a connection assembly 300 , which is located between the rotatable connection rod 100 and the first component A, and is used to fix the connection accessory 04 to the first component.

[0034] Further, continue to refer to Figure 2 and Figure 3 The connecting accessory 04 also includes a height-adjustable component 200, which is disposed on the side of the arc-surface rotating end 102 away from the connecting end 101. The height-adjustable component 200 includes a main structure 210, and the overall shape of the main structure 210 can be columnar or cylindrical, but is not limited thereto. The main structure 210 is connected to the second component B, and the specific connection method is not limited, and those skilled in the art can set it according to actual needs. When the second component B is installed, the extension direction of the plane where the second component B is located can be controlled to intersect with the extension direction of the main structure 210, Figure 3 It is shown in the figure that the plane where the second component B is located is perpendicular to the extension direction of the main structure 210, but it is not limited to this.

[0035] Furthermore, the embodiment of the present invention proposes that the side surface of the main structure 210 facing the rotatable connecting rod 100 includes a groove 201, and the groove 201 extends downward from the side surface of the main structure 210 to a certain depth. The arc-surface rotating end 102 of the rotatable connecting rod 100 can be installed in the groove 201, and the connecting end 101 is located outside the groove 201, that is, when the connecting accessory is used to connect the first component A and the second component B, the first component A can be installed on the side of the rotatable connecting rod 100 away from the height adjustable component 200, and the second component B can be installed on the side of the height adjustable component 200 away from the first component A.

[0036] Since the arc surface rotating end 102 has a certain curvature, the arc surface rotating end 102 can rotate in the groove 201. The rotation of the arc surface rotating end 102 drives the entire rotatable connecting rod 100 to rotate, so that the angle between the rotatable connecting rod 100 and the main structure 210, that is, the angle between the rotatable connecting rod 100 and the second component B can be adjusted. Since the angle between the rotatable connecting rod 100 and the first component A is fixed, when the rotatable connecting rod 100 rotates, the angle between the plane where the first component A is located and the plane where the second component B is located changes.

[0037] It should be noted that, in order to realize the free rotation of the arc surface rotating end 102 in the accommodation space, at least part of the arc surface rotating end 102 should be spherical. The embodiment of the present invention exemplarily shows that the arc surface rotating end 102 is spherical as a whole, but it is not limited to this. In other embodiments not shown, the rotating end can also be in any shape such as hemispherical, spherical or elliptical. Correspondingly, when the arc surface rotating end 102 is spherical, the main structure 210 can be in a circular tubular shape as a whole, and the maximum spacing between the two side walls of the groove 201 that are relatively arranged is greater than or equal to the diameter of the arc surface rotating end 102, so as to ensure that the arc surface rotating end 102 can be placed in the groove 201.

[0038] By adjusting the angle of the rotatable connecting rod 100, the angles between different components can be adjusted, and the position adjustment of the components in three-dimensional space can be freely realized. Taking the lens and the lens holder as an example, by adjusting the angle of the rotatable connecting rod 100, the curvature of the lens can be adjusted. In addition, due to the use of the rotatable connecting rod 100, the connection between the connecting accessories and the components is in a stress-free natural connection state, which can reduce the connection stress between the connecting accessories and the components, thereby reducing the influence of external forces on the lens and avoiding the lens from being broken by force; at the same time, it greatly reduces the risk of lens breakage under the influence of other environmental factors such as climate changes in temperature and strong winds, effectively prolonging the service life of the lens and reducing the cost of using the lens.

[0039] The main structure 210 and the second component B may be directly fixedly connected or movably connected through other components, for example, the two may be directly welded or fixedly connected through glue, or movably connected through components such as nuts, which is not limited in the embodiment of the present invention. The specific setting of the main structure 210 is not limited, and those skilled in the art may set it according to actual needs, and any structure that can achieve the corresponding function is within the scope of the technical solution protected by the embodiment of the present invention.

[0040] Figure 2 and Figure 3 The figure shows the rotatable connecting rod 100 at a vertical angle. In this state, the rotatable connecting rod 100 is parallel to the extension direction of the main structure 210, and the plane where the first component A is located is parallel to the plane where the second component B is located. When the angle needs to be adjusted, the rotatable connecting rod 100 can be controlled to move to any horizontal direction shown in the figure.

[0041] Among them, one point that needs to be explained is that the connecting accessory in the embodiment of the present invention includes a first state and a second state when in use. The first state is a state in which the arc-surface rotating end 102 is relaxed. In the first state, the arc-surface rotating end 102 is separated from the main structure 210, and the arc-surface rotating end 102 rotates in the groove 201 to adjust the relative angle between the rotatable connecting rod 100 and the plane where the second component B is located; the second state is a state in which the arc-surface rotating end 102 is fixed. After the angle adjustment is completed, the connecting accessory 04 can be adjusted to the second state. In the second state, the arc-surface rotating end 102 abuts against the main structure 210, so that the arc-surface rotating end 102 is fixed, that is, the adjustment of the rotatable connection angle is completed.

[0042] The connection fittings provided by the embodiment of the present invention include a rotatable connecting rod and a height-adjustable assembly: the rotatable connecting rod includes a connection end and an arc-shaped rotating end that are relatively arranged along the extension direction of the rotatable connecting rod, and the connection end is fixed to the first component; the height-adjustable assembly includes a main structure, the main structure is located on the side of the rotatable connecting rod away from the first component, and the main structure is connected to the second component; the surface of the main structure on one side facing the rotatable connecting rod includes a groove, and the arc-shaped rotating end is located in the groove. By adjusting the angle of the rotatable connecting rod, the spacing and / or angle between different components can be adjusted, and the connection stress between the connection fittings and the components can be reduced, thereby reducing the influence of external forces on the lens, avoiding the lens from being broken by force, thereby reducing the cost of the heliostat and increasing the service life of the heliostat.

[0043] Optional, you can continue to refer to Figure 2 and Figure 3 In a possible embodiment, the main structure 210 includes a sleeve 211 and an inner core 212. The interior of the sleeve 211 includes a hollow area 213. At least a portion of the inner core 212 is located in the hollow area 213, occupying a portion of the space of the hollow area 213. The inner core 212 and the inner wall of the portion of the sleeve 211 at the hollow area 213 define a groove 201; the groove 201 includes an opening, and the opening 202 is an opening 202 on the surface of the sleeve 211 facing the rotatable connecting rod 100; the arc surface rotating end 102 is spherical, and the opening 202 is circular, and the diameter of the opening 202 is smaller than the diameter of the arc surface rotating end 102.

[0044] Figure 4 A schematic diagram of the structure of a sleeve provided in an embodiment of the present invention, Figure 5 A schematic diagram of the structure of an inner core provided in an embodiment of the present invention can be combined with reference to Figure 2 to Figure 5As shown, the main structure 210 can be composed of a sleeve 211 and an inner core 212. The sleeve 211 can be cylindrical and include a hollow area 213 in the middle. The hollow area 213 is the space surrounded by the inner wall of the sleeve 211. The side surface of the main structure 210 facing the rotatable connecting rod 100 is the upper surface of the sleeve 211 (according to the orientation shown in the figure), and the side surface of the main structure 210 away from the rotatable connecting rod 100 is the lower surface of the sleeve 211. At least part of the inner core 212 is placed in the hollow area 213, and the inner core 212 occupies part of the space of the hollow area 213 and is close to the lower surface of the sleeve 211. The inner core 212 and the inner wall of the sleeve 211 at the part of the hollow area 213 not occupied by the inner core 212 surround to form a groove 201. In other words, at least part of the arc surface rotation end 102 and at least part of the inner core 212 are located in the hollow area 213, and the inner core 212 is located on the side of the arc surface rotation end 102 away from the connection end 101. Figure 2 and Figure 3 As shown in , the arc surface rotation end 102 and the inner core 212 are arranged along the extension direction of the sleeve 211 (or the inner core 212 ), and the inner core 212 is located on the side of the arc surface rotation end 102 facing the second component B. In this way, the arc surface rotation end 102 can rotate in the hollow area 213 above the inner core 212 .

[0045] Taking the arc surface rotating end 102 as a sphere as an example, the circular inner diameter of the hollow area 213 is greater than or equal to the diameter of the arc surface rotating end 102, ensuring that the arc surface rotating end 102 can be placed in the hollow area 213. The opening 202 of the groove 201 is the opening 202 on the upper surface of the sleeve 211, and the shape of the opening 202 can be circular, so that the shape of the opening 202 of the groove 201 matches the shape of the arc surface rotating end 102.

[0046] like Figure 2 to Figure 5 As shown, it is worth mentioning that in this embodiment, the diameter of the opening 202 can also be set to be smaller than the diameter of the arc surface rotating end 102, that is, the size of the groove opening 202 is smaller than the size of the center of the groove 201. When assembling the connection accessories, the rotatable connecting rod 100 can first pass through the opening 202 on the lower surface of the sleeve 211, so that the arc surface rotating end 102 enters the hollow area 213 and is stuck in a position close to the upper surface of the sleeve 211; then the inner core 212 is placed. In this setting, the arc surface rotating end 102 can be stuck in the groove 201 and will not move out from the opening 202.

[0047] The arc-surface rotating end 102 can be defined as the ball head portion of the rotatable connecting rod 100, and the rest is the rod body portion of the rotatable connecting rod 100. It should be added that in order to ensure that the rotatable connecting rod 100 can be placed in the hollow area 213, the diameter of the rod body portion needs to be set smaller than the diameter of the opening 202 on the upper surface of the sleeve 211.

[0048] Optionally, in a specific implementation, the wall thickness of the sleeve 211 may be greater than 1 mm, and the height of the sleeve 211 may be greater than 5 mm. The diameter of the arc surface rotating end 102 may be 1 to 30 mm, and the total length of the rotatable connecting rod 100 may be greater than 5 mm, but is not limited thereto. In actual application, the specific dimensions of each component may be set according to actual needs.

[0049] Optional, you can continue to refer to Figure 2 to Figure 5 The inner wall of the sleeve 211 includes a thread, and at least a portion of the surface of the inner core 212 facing the inner wall of the sleeve 211 includes a thread. The inner core 212 is threadedly connected to the sleeve 211, and the relative position of the inner core 212 and the sleeve 211 in the extension direction of the sleeve 211 is adjustable; the side surface of the inner core 212 facing the arc surface rotating end 102 is a first surface 214, and the connecting accessory includes a first state and a second state. In the first state, the arc surface rotating end 102 is separated from at least one of the first surface 214 and the inner wall of the sleeve 211, and the arc surface rotating end 102 rotates in the groove 201 to adjust the relative angle between the rotatable connecting rod 100 and the plane where the second component B is located; in the second state, the arc surface rotating end 102 is in contact with both the first surface 214 and the inner wall of the sleeve 211, and the arc surface rotating end 102 is fixed.

[0050] As an optional embodiment of the present invention, threads may be provided on the inner wall of the sleeve 211 and the outer wall of the inner core 212, and the threads of the two cooperate with each other, so that the sleeve 211 and the inner core 212 are threadedly connected. The advantage of setting the two threaded connections is that during the use of the connecting accessory, by rotating the sleeve 211 or rotating the inner core 212, the sleeve 211 or the inner core 212 can be moved up and down, thereby adjusting the relative position of the two. It can be understood that when the relative position of the inner core 212 and the sleeve 211 along the extension direction of the sleeve 211 changes, the relative force between the inner core 212, the sleeve 211 and the arc surface rotating end 102 changes, so that the connecting accessory can be adjusted between the first state and the second state.

[0051] Specifically, as mentioned above, when the connecting accessory is in the first state, the arc surface rotating end 102 is in a relaxed state, and when it is in the second state, the arc surface rotating end 102 is in a fixed tightened state. Based on the structure shown in this embodiment, when the angle of the rotatable connecting rod 100 needs to be adjusted, the sleeve 211 or the inner core 212 can be rotated in the first direction (for example, counterclockwise) so that the relative distance between the inner core 212 and the sleeve 211 along the extension direction of the sleeve 211 increases, and the arc surface rotating end 102 is separated from at least one of the first surface 214 (inner core 212) and the inner wall of the sleeve 211, so that the arc surface rotating end 102 can be relaxed and the rotatable connecting rod 100 can be rotated to the required angle. Subsequently, the sleeve 211 or the inner core 212 is rotated in the second direction (opposite to the first direction, for example, clockwise) so that the relative distance between the inner core 212 and the sleeve 211 along the extension direction of the sleeve 211 is reduced, and the arc surface rotating end 102 contacts both the first surface 214 (inner core 212) and the inner wall of the sleeve 211, and the inner core 212 and the sleeve 211 jointly press the arc surface rotating end 102 to fix the rotatable connecting rod 100 at the current angle.

[0052] For example, taking the movable sleeve 211 as an example, when the angle of the rotatable connecting rod 100 needs to be adjusted, the sleeve 211 can be moved upward to loosen the arc surface rotating end 102; after the angle adjustment is completed, the sleeve 211 is moved downward to fix the arc surface rotating end 102. Taking the movable inner core 212 as an example, when the angle of the rotatable connecting rod 100 needs to be adjusted, the inner core 212 can be moved downward to loosen the arc surface rotating end 102; after the angle adjustment is completed, the inner core 212 is moved downward to fix the arc surface rotating end 102.

[0053] Figure 2 The figure shown can be regarded as a schematic diagram of the connecting accessory in the second state. Figure 6 A schematic diagram of the structure of another connection accessory provided by an embodiment of the present invention, Figure 6 The figure shown can be regarded as a schematic diagram when the connecting accessory is in the first state.

[0054] Optionally, in other embodiments, when it is necessary to fix the rotatable connecting rod 100, glue or a gasket (not shown in the figure) may be arranged between the inner core 212 and the arcuate rotating end 102 and / or between the sleeve 211 and the arcuate rotating end 102, so as to enhance the fixing effect of the arcuate rotating end 102 in the second state.

[0055] Optional, you can continue to refer to Figure 2 and Figure 5 In a possible embodiment, the first surface 214 is an arc-shaped concave surface, and in the second state, the entire arc-shaped concave surface is in contact with the arc-shaped rotating end 102.

[0056] As an optional solution, the first surface 214 of the inner core 212 in contact with the arc surface rotation end 102 can be set as an arc surface, and the curvature of the arc concave surface of the first surface 214 is the same as the curvature of the arc surface of the arc surface rotation end 102. In this way, when the connecting accessory is in the second state, the contact area between the arc surface rotation end 102 and the first surface 214 is larger, thereby improving the fixing strength of the arc surface rotation end 102 in the groove 201.

[0057] Figure 7 A schematic diagram of the structure of another inner core provided by an embodiment of the present invention, Figure 8 A schematic diagram of another inner core structure provided by an embodiment of the present invention can be referred to Figure 7 and Figure 8 In other optional embodiments, the first surface 214 of the inner core 212 may also be a plane or a tapered surface.

[0058] Figure 2 and Figure 5 In the illustrated embodiment, the inner core 212 is a hollow structure, and the first surface 214 of the inner core 212 includes an opening 202 area. The opening 202 area may be cylindrical, thereby reducing the weight of the connection fitting. Figure 7 and Figure 8 In the illustrated embodiment, the inner core 212 is a solid structure, which can increase the contact area between the inner core 212 and the arc-surface rotating end 102 and enhance the rotation effect of the rotatable connecting rod 100 .

[0059] Optional, Fig. 9 A schematic diagram of another inner core structure provided by an embodiment of the present invention can be combined with and refer to Figure 2 , Figure 5 and Fig. 9 In a possible embodiment, the inner core 212 is cylindrical, and the inner core 212 includes a first division 2121 and a second division 2122 that are integrally arranged, the first division 2121 is located in the hollow area 213, and the second division 2122 is located on the side of the arc surface rotating end 102 away from the connecting end 101; at least part of the outer wall of the second division 2122 includes a first locking structure 2124, and the first locking structure 2124 includes at least one group of first locking surfaces that are radially opposite to each other along the inner core 212, and / or, a side surface of the second division 2122 away from the first division 2121 includes a first notch 2123.

[0060] like Figure 2 , Figure 5 and Fig. 9As shown, the inner core 212 extends in a cylindrical shape, and the extension direction of the inner core 212 is the extension direction of the sleeve 211. The second subsection 2122 and the first subsection 2121 are arranged along the extension direction of the inner core 212, the first subsection 2121 is close to the arc surface rotation end 102, and the second subsection 2122 is far away from the arc surface rotation end 102. The first surface 214 is a side surface of the first subsection 2121 away from the second subsection 2122. In the second state, the first subsection 2121 abuts against the arc surface rotation end 102.

[0061] The figure exemplarily shows that the first sub-portion 2121 is located inside the sleeve 211 and the second sub-portion 2122 is located outside the sleeve 211 , but the invention is not limited thereto. In other embodiments, both the first sub-portion 2121 and the second sub-portion 2122 can be located inside the sleeve 211 .

[0062] refer to Figure 2 and Figure 5 In some embodiments, the second subdivision 2122 may be located outside the hollow area 213, and the sidewall of the second subdivision 2122 of the inner core may include a first engaging structure 2124, and the first engaging structure 2124 may be a double-sided bayonet or a hexagonal bayonet. When the first engaging structure 2124 is a double-sided bayonet, the first engaging structure 2124 includes a group of two first engaging surfaces arranged oppositely along the radial direction of the inner core 212; when the first engaging structure is a hexagonal bayonet, the first engaging structure 2124 includes three groups of six first engaging surfaces arranged oppositely along the radial direction of the inner core 212. The first engaging structure 2124 may cooperate with a tool, and after the tool engages the first engaging structure 2124, the inner core 212 may be rotated, so that the inner core 212 moves up and down along the extension direction of the sleeve 211, thereby achieving the purpose of loosening or fixing the arc surface rotating end 102.

[0063] refer to Fig. 9 In other embodiments, the second section 2122 of the inner core 212 may include a first notch 2123 on one side of the surface away from the first section 2121. The first notch 2123 may be a straight slot, a cross slot, or a hexagonal slot. The first notch 2123 may cooperate with a tool. After the tool is stuck in the first notch 2123, the inner core 212 may be rotated to move the inner core 212 up and down along the extension direction of the sleeve 211, thereby achieving the purpose of loosening or fixing the arc surface rotating end 102. It should be noted that in the embodiment in which the second notch 2123 is provided, the second section 2122 may be located either inside the hollow area 213 or outside the hollow area 213.

[0064] In other embodiments of the present invention, the second section 2122 may be provided with a first snap-fit ​​structure 2124 and a first slot 2123 at the same time. When connecting accessories for use, the first snap-fit ​​structure 2124 or the first slot 2123 is used to rotate the inner core 212 according to the actual installation position.

[0065] The above embodiment shows that the rotatable connecting rod 100 is loosened or fixed by rotating the inner core 212 , and the specific implementation method of loosening or fixing the rotatable connecting rod 100 by rotating the sleeve 211 is similar, and will not be repeated here.

[0066] Optional, you can continue to refer to Figure 1 to Figure 3 In some embodiments, the height adjustable assembly 200 may further include a moving assembly 220, which is sleeved on the outer wall of the main structure. The side of the moving assembly 220 facing the main structure 210 may include a thread, and the outer wall of the main structure 210 may include a thread that matches the moving assembly 220, thereby achieving a threaded connection between the two. The moving assembly 220 can move up and down along the extension direction of the main structure 210, thereby achieving the adjustment of the height of the rotatable connecting rod 100, in other words, achieving the adjustment of the distance between the second component B and the first component A, and achieving the height adjustment of the heliostat component (such as the lens 01).

[0067] It should be noted that, with the connection accessories designed in this embodiment, the rotation force area of ​​the rotatable connecting rod 100 is mainly on the rod body, while the force area when adjusting the height is mainly in the connection area between the moving component 220 and the main structure 210, which can achieve the effect of dispersing the force, avoid the problem of connection accessories being easily damaged due to concentrated force points, and further improve the service life of the heliostat.

[0068] For example, please refer to Figure 2 to Figure 4 In a possible embodiment, at least part of the outer wall of the sleeve 211 includes threads, the moving component 220 is sleeved on the outer wall of the sleeve 211, and at least part of the surface of the moving component 220 facing the sleeve 211 includes threads; the moving component 220 and the sleeve 211 are at least partially connected by threads, and the moving component 220 can drive the second component B to move along the extension direction of the sleeve 211 to adjust the distance between the first component A and the second component B.

[0069] like Figure 2 to Figure 4 As shown, in this embodiment, at least part of the outer wall of the sleeve 211 is provided with threads, the moving assembly 220 is sleeved on the outer side of the sleeve 211, and the moving assembly 220 and the sleeve 211 are threadedly connected. By rotating the moving assembly 220, the moving assembly 220 can be moved up and down along the extension direction of the sleeve 211, so as to adjust the distance between the second component B and the first component A.

[0070] In this solution, the inner wall and the outer wall of the sleeve 211 both include threads. The sleeve 211 serves as the moving axis of the moving component 220. The length of the sleeve 211 can be set to be longer and the extension length of the inner core 212 can be set to be shorter, thereby increasing the height adjustable range of the rotatable connecting rod 100.

[0071] Optional, Fig.10A structural diagram of another connection accessory provided by an embodiment of the present invention can be referred to Fig.10 In other embodiments, the inner core 212 is cylindrical, the extension length of the inner core 212 is greater than the extension length of the sleeve 211, and at least a portion of the surface of the inner core 212 facing the inner wall of the sleeve 211 includes a thread; the inner core 212 includes a first division 2121 and a second division 2122 that are integrally arranged, the first division 2121 is located in the hollow area, and the second division 2122 is located outside the hollow area; the moving component 220 is sleeved on the outer wall of the second division 2122, and at least a portion of the surface of the moving component 220 facing the inner core 212 includes a thread, and the moving component 220 and the inner core 212 are at least partially connected by threads, and the moving component 220 can drive the second component B to move along the extension direction of the inner core 212 to adjust the distance between the first component and the second component.

[0072] like Fig.10 As shown, in this embodiment, the extension length of the inner core 212 is greater than the extension length of the sleeve 211, and the length of the second section 2122 is greater than the length of the first section 2121. At least part of the outer wall of the inner core 212 can be provided with threads, and the moving component 220 is sleeved on the outer side of the second section 2122 of the inner core 212 and is threadedly connected to the second section 2122. By rotating the moving component 220, the moving component 220 can be moved up and down along the extension direction of the inner core 212, thereby adjusting the distance between the second component and the first component.

[0073] By providing a thread on the outer wall of the inner core 212, the inner core 212 serves as a moving axis of the moving component 220. Figure 2 The inner and outer walls of the sleeve 211 are both provided with threads. Fig.10 The sleeve 211 of the illustrated solution only needs to be provided with internal threads, which can avoid the problem of reduced reliability caused by providing internal and external threads on the sleeve 211 , reduce the processing difficulty of the sleeve 211 and improve the reliability of the sleeve 211 .

[0074] Optionally, in some other embodiments, the relative position between the main structure 210 (sleeve 211 or inner core 212) and the second component is fixed, and the relative position between the main structure 210 and the rotatable connecting rod 100 in the extension direction of the main structure 210 is adjustable, which can also realize the adjustment of the distance between the first component and the second component.

[0075] Specifically, the main structure 210 (sleeve 211 or inner core 212) and the second component can be fixed directly or through a fixing component. Taking the fixing of the inner core 212 and the second component as an example, the structure of the fixing component can be similar to the moving component 200 in the above embodiment, except that the fixing component and the inner core 212 are fixedly connected and the two cannot move relative to each other. After determining the installation spacing between the first component and the second component, the second component and the inner core 212 can be fixed by a fixing component, or directly welded. In this fixing method, if the spacing between the first component and the second component needs to be adjusted later, it can be achieved by moving the inner core 212 up and down. For example, the push rod assembly can be used to push the inner core 212 up and down to adjust the height of the height adjustment component 100.

[0076] The advantage of the fixed connection between the main structure 210 and the second component is that the fixing method of the two is simple, which is conducive to simplifying the actual production and assembly process.

[0077] The specific structure of the push rod assembly can be set by those skilled in the art according to actual needs. For example, it may include an electric push rod or a manual push rod, etc. The embodiments of the present invention do not elaborate on this and do not limit this.

[0078] Fig.11 A schematic diagram of a rotatable connecting rod according to an embodiment of the present invention can be used in conjunction with Figure 2 , Figure 3 and Fig.11 The connecting accessory 04 also includes a connecting component 300, and the connecting component 300 includes a connecting piece 301. The connecting piece 301 is provided with an internal threaded hole. The outer wall of the rotatable connecting rod 100 near the connecting end 101 includes a thread. The connecting end 101 is threadedly connected to the internal threaded hole. The side of the connecting piece 301 away from the arc surface rotating end 102 is fitted and fixed to the first component A; the rotatable connecting rod 100 also includes an extension section 103 located between the connecting end 101 and the arc surface rotating end 102, at least part of the outer wall of the extension section 103 includes a second clamping structure 104, and the second clamping structure 104 includes at least one group of second clamping surfaces arranged radially opposite to each other along the extension section 103, and / or, the side surface of the arc surface rotating end 102 away from the connecting end 101 includes a second notch 105.

[0079] The connecting component 300 is in the shape of a sheet as a whole, and its top view shape can be any shape such as a circle or a rectangle. The extension direction of the connecting component 300 (connecting sheet 301) is parallel to the extension direction of the first component A. An internal threaded hole is provided in the middle area of ​​the connecting sheet 301. The internal threaded hole can extend from one side surface of the connecting sheet 301 to the other side surface to a certain depth, or can penetrate the connecting sheet 301. The embodiment of the present invention does not limit this. The internal threaded hole is not marked in the accompanying drawings, and the area where the connecting end 101 is inserted into the connecting sheet 301 is the area where the internal threaded hole is located. The inner wall of the internal threaded hole includes a thread, which cooperates with the thread of the outer wall of the connecting end 101, and the connecting end 101 is fixed in the internal threaded hole by a thread. The side surface of the connecting component 300 facing away from the arc rotating end 102 (that is, the side surface of the connecting sheet 301 facing away from the rotatable connecting rod 100) is attached to and fixed to the first component A.

[0080] The connecting sheet 301 may be made of ceramic material or metal material, which is not elaborated or limited in the embodiment of the present invention.

[0081] The rotatable connecting rod 100 is cylindrical in shape, and the extension section 103 is located between the connecting end 101 and the arc-shaped rotating end 102. Figure 2 , Fig.11 As shown in FIG. (a), at least part of the outer wall of the extension section 103 includes a second engaging structure 104, and the second engaging structure 104 can be a double-sided bayonet ( Fig.11 (a) or hexagonal bayonet ( Figure 2 The first engaging structure 2124 and the second engaging structure 104 may be the same or different. The second engaging structure 104 may cooperate with a tool. After the tool engages the second engaging structure 104, the connecting rod 100 may be rotated to achieve the fixing and disassembly of the connecting end 101 and the second component.

[0082] like Fig.11 As shown in Figures (b) and (c), in other embodiments, the surface of the arc-shaped rotating end 102 facing away from the connecting end 101 may include a second notch 105, and the second notch 105 may be a straight slot, a cross slot, or a hexagonal slot, etc. The second notch 105 may cooperate with a tool, and after the tool is clamped in the second notch 105, the rotatable connecting rod 100 is rotated to achieve the fixing and disassembly of the connecting end 101 and the second component.

[0083] Optional, Fig.12 A schematic diagram of the structure of another connection accessory provided by an embodiment of the present invention, Fig.13 A schematic diagram of a connection assembly provided in an embodiment of the present invention can be referred to Fig.12 and Fig.13The connection assembly 300 may further include a cap nut 302, which is installed in the internal threaded hole. One side of the cap nut 302 is a closed surface, and one side includes a groove (not shown in the figure), the extension direction of the groove is the axial direction of the cap nut 302, and the extension direction is perpendicular to the plane where the connecting piece 301 is located. The inner wall of the groove includes a thread, and the connecting end 101 of the rotatable connecting rod 100 can be fixed in the groove of the cap nut 302 through the thread, and the connecting end 101 can contact the bottom of the groove.

[0084] Fig.14 A schematic diagram of another rotatable connecting rod provided in an embodiment of the present invention can be referred to Fig.14 In a possible embodiment, the rotatable connecting rod 100 also includes an annular limiting portion 106, which is integrally arranged with the connecting end 101. The annular limiting portion 106 surrounds a portion of the rod body of the rotatable connecting rod 100 close to the connecting end 101, and the annular limiting portion 106 is in contact with the surface of the connecting piece 301 facing away from the first component A.

[0085] like Fig.14 As shown, in some embodiments, the side of the rotatable connecting rod 100 close to the connecting end 101 further includes an annular limiting portion 106, and the annular limiting portion 106, the connecting end 101 and the arc surface rotating end 102 are all integral structures. The extension direction of the annular limiting portion 106 is parallel to the extension direction of the connecting piece 301, and the annular limiting portion 106 surrounds the rod body of the rotatable connecting rod 100. The annular limiting portion 106 serves as a limiting structure of the connecting end 101. The distance between the annular limiting portion 106 and the surface of the side of the connecting end 101 away from the arc surface rotating end 102 is less than or equal to the depth of the groove of the cap nut 302, and the coverage area of ​​the annular limiting portion 106 is greater than the area of ​​the groove and even greater than the area of ​​the fixing hole of the connecting piece 301. Taking the example that the distance between the annular limiting portion 106 and the surface of the connecting end 101 facing away from the arc rotating end 102 is equal to the depth of the groove, in the process of tightening the connecting end 101 and the cap nut 302, when the connecting end 101 contacts the bottom of the groove, the annular limiting portion 106 contacts the connecting piece 301. After the two contact, the connecting end 101 will not continue to extend into the groove, thereby avoiding excessive tightening of the connecting end 101 and piercing through the connecting piece 301, causing damage to the first component.

[0086] Optional, you can continue to refer to Figure 2 , Figure 3 or Fig.10 In a possible embodiment, the moving component 220 includes an adjusting block 221 and a fastener 222, both of which are sleeved on the outer wall of the main structure 210, and the adjusting block 221 and the fastener 222 are arranged along the extension direction of the main structure 210; there is a gap 223 between the adjusting block 221 and the fastener 222, and the second component B is fixed in the gap 223.

[0087] Both the adjusting block 221 and the fastener 222 may be cylindrical (or tubular), and the two are arranged along the extension direction of the sleeve 211. The second component B may include a connecting hole, the main structure 210 (sleeve 211 or inner core 212) passes through the connecting hole, and the second component B at the edge of the connecting hole is clamped in the gap 223 between the adjusting block 221 and the fastener 222, so as to achieve the fixing of the connecting accessory and the second component B.

[0088] The inner wall of the adjustment block 221 and / or the fastener 222 may include threads, and at least one of the two may be threadedly connected to the main structure 210. Figure 3 In the illustrated embodiment, the adjustment block 221 and the fastener 222 are sleeved on the outer wall of the sleeve 211 and are threadedly connected to the sleeve 211 . Fig.10 In the illustrated embodiment, the adjustment block 221 and the fastener 222 are sleeved on the outer wall of the inner core 212 and threadedly connected to the inner core 212. The adjustment block 221, the second component B and the fastener 222 are fixed, and the adjustment block 221 can drive the second component B to move along the extension direction of the main structure 210.

[0089] When one of the adjustment block 221 and the fastener 222 is threadedly connected to the main structure 210, the other can be used as a fixed-height mounting block, and the height of the mounting block (the length along the extension direction of the main structure 210) is set according to the installation requirements of the actual connection accessories. For example, the inner wall of the fastener 222 includes threads, and the adjustment block 221 is not provided with threads. The height of the adjustment block 221 is fixed, and the fastener 222 plays the role of fastening the moving assembly 220, and the position of the moving assembly 220 in the extension direction of the main structure 210 is fixed.

[0090] The material of each component (ie, part) in the connection fitting may be metal or non-metal, etc. Non-metal includes but is not limited to plastic, which is not limited in the embodiment of the present invention.

[0091] Based on the same concept, an embodiment of the present invention further provides a heliostat, comprising the connection accessories provided by any embodiment of the present invention and a lens, a mirror holder and a mirror frame, wherein the first component comprises at least one of the lens and the mirror holder, and the second component comprises at least one of the mirror holder and the mirror frame.

[0092] By adopting the above-mentioned connecting accessories, the connection stress between the connecting accessories and the components can be reduced, thereby reducing the influence of external forces on the lens, avoiding the lens from being broken due to force, and thus reducing the cost of the heliostat; in addition, since the force-bearing areas for the angle adjustment and height adjustment of the rotatable connecting rod are different, the effect of dispersing the force can be achieved, avoiding the problem of the connection accessories being easy to be damaged due to the concentration of force points, and further improving the service life of the heliostat.

[0093] The heliostat provided by the embodiment of the present invention includes all the technical features and corresponding beneficial effects of the connection accessories provided by any embodiment of the present invention, which will not be described in detail here.

[0094] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A connection accessory, characterized in that: For a heliostat, the heliostat comprises a lens, a lens holder and a lens frame, the connecting fitting is connected between different components of the heliostat, the different components in the heliostat comprise a first component and a second component, the first component comprises at least one of the lens and the lens holder, the second component comprises at least one of the lens holder and the lens frame; The connecting fitting comprises a rotatable connecting rod and a height-adjustable component: The rotatable connecting rod comprises a connecting end and an arc surface rotating end which are arranged opposite to each other along the extending direction of the rotatable connecting rod, and the connecting end is fixed to the first component; The height-adjustable component includes a main structure, which is located on the side of the rotatable connecting rod away from the first component, and the main structure is connected to the second component; the surface of the main structure on one side facing the rotatable connecting rod includes a groove, and the arc-shaped rotating end is located in the groove.

2. The connection fitting according to claim 1, characterized in that: The main structure includes a sleeve and an inner core, the interior of the sleeve includes a hollow area, at least part of the inner core is located in the hollow area, occupying part of the space in the hollow area, and the inner core and part of the inner wall of the sleeve at the hollow area define the groove; The groove includes an opening, which is an opening on the surface of the sleeve facing the rotatable connecting rod; the arc surface rotating end is spherical, the opening is circular, and the diameter of the opening is smaller than the diameter of the arc surface rotating end.

3. The connection fitting according to claim 2, characterized in that: The inner wall of the sleeve includes a thread, at least a portion of the surface of the inner core facing the inner wall of the sleeve includes a thread, the inner core and the sleeve are threadedly connected, and the relative position of the inner core and the sleeve in the extension direction of the sleeve is adjustable; The side surface of the inner core facing the arcuate rotating end is a first surface, and the connecting accessory includes a first state and a second state. In the first state, the arcuate rotating end is separated from at least one of the first surface and the inner wall of the sleeve, and the arcuate rotating end rotates in the groove to adjust the relative angle between the rotatable connecting rod and the plane where the second component is located; in the second state, the arcuate rotating end is in contact with both the first surface and the inner wall of the sleeve, and the arcuate rotating end is fixed.

4. The connection fitting according to claim 3, characterized in that: The first surface is an arc-shaped concave surface, and in the second state, all of the arc-shaped concave surface is in contact with the arc-shaped rotating end.

5. The connection fitting according to claim 3, characterized in that: The inner core is cylindrical, and includes a first sub-section and a second sub-section which are integrally arranged, wherein the first sub-section is located in the hollow area, and the second sub-section is located on a side of the arc surface rotation end away from the connection end; At least part of the outer wall of the second section includes a first engaging structure, the first engaging structure includes at least one set of first engaging surfaces arranged radially opposite to each other along the inner core, and / or a side surface of the second section facing away from the first section includes a first notch.

6. The connection fitting according to claim 2, characterized in that: The height adjustable component further comprises a moving component, and the moving component is fixed to the second component; at least a portion of the outer wall of the sleeve comprises threads, the moving component is sleeved on the outer wall of the sleeve, and at least a portion of the surface of the moving component facing the sleeve comprises threads; The moving component is at least partially connected to the sleeve via threads, and the moving component can drive the second component to move along the extending direction of the sleeve to adjust the distance between the first component and the second component.

7. The connection fitting according to claim 2, characterized in that: The inner core is cylindrical, the extension length of the inner core is greater than the extension length of the sleeve, and at least part of the surface of the inner core facing the inner wall of the sleeve includes a thread; the inner core includes a first sub-section and a second sub-section that are integrally arranged, the first sub-section is located in the hollow area, and the second sub-section is located outside the hollow area; The height-adjustable component also includes a moving component, which is fixed to the second component and is sleeved on the outer wall of the second section. At least part of the surface of the moving component facing the inner core includes a thread. The moving component and the inner core are at least partially connected by threads. The moving component can drive the second component to move along the extension direction of the inner core to adjust the distance between the first component and the second component.

8. The connection fitting according to claim 6 or 7, characterized in that: The moving assembly includes an adjusting block and a fastener, the adjusting block and the fastener are both sleeved on the outer wall of the main structure, and the adjusting block and the fastener are arranged along the extension direction of the main structure; There is a gap between the adjusting block and the fastener, and the second component is fixed in the gap.

9. The connection fitting according to claim 1, characterized in that: The connecting accessory further comprises a connecting assembly, the connecting assembly comprises a connecting piece, the connecting piece is provided with an internal threaded hole; the outer wall of the rotatable connecting rod near the connecting end comprises threads, the connecting end is threadedly connected to the internal threaded hole, and the side of the connecting piece away from the arc surface rotating end is fixedly attached to the first component; The rotatable connecting rod also includes an extension section located between the connecting end and the arc surface rotating end, at least a portion of the outer wall of the extension section includes a second locking structure, the second locking structure includes at least one group of second locking surfaces radially oppositely arranged along the extension section, and / or a side surface of the arc surface rotating end facing away from the connecting end includes a second notch.

10. The connection fitting according to claim 9, characterized in that: The rotatable connecting rod also includes an annular limiting portion, which is integrally arranged with the connecting end. The annular limiting portion surrounds a portion of the rod body of the rotatable connecting rod close to the connecting end, and the annular limiting portion is in contact with a surface of the connecting piece on a side away from the first component.

11. A heliostat, characterized in that: The connecting fitting, lens, mirror holder and mirror frame comprising any one of claims 1 to 10; The first component includes at least one of the lens and the mirror base, and the second component includes at least one of the mirror base and the mirror frame.

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