Grounding rivet for photovoltaic power station support and installation tool of grounding rivet

Abstract

The invention discloses a grounding rivet for a photovoltaic power station support and an installation tool of the grounding rivet. The grounding rivet comprises a riveting pull rod and a tensioning sleeve. The riveting pull rod comprises a first riveting head part and a fixed rod part, a plurality of salient points are arranged on the bottom surface of the first riveting head part, the salient points are used for puncturing an insulating layer of a clamped piece to enable a rivet and the clamped piece to be communicated and grounded, the fixed rod part penetrates through the clamped piece, and a clamping part is arranged on the periphery of the fixed rod part; the tensioning sleeve is provided with a through hole allowing the first fixing rod part to penetrate through, the hole diameter of the through hole is larger than the diameter of the fixing rod part, the hole diameter of the tensioning sleeve can be reduced through an installation tool, the clamping part is embedded into the tensioning sleeve to be fixed, and meanwhile the first riveting head part and the end of the tensioning sleeve are located on the two sides of a clamped piece respectively to clamp the clamped piece. According to the invention, the rivet can be fixed on the clamped piece only by one step, and meanwhile, the rivet grounding can be realized, so that the conductive grounding effect achieved through a wiring mode is eliminated, the operation steps are simplified, the grounding effect is ensured to be effective for a long time, and the situation that a grounding wire is forgotten can be avoided; by means of the installation tool, relative movement of rivet components can be achieved, and the purposes of piercing grounding and riveting fixing are rapidly achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of riveting fixings, and in particular is a groundable rivet for a photovoltaic power station bracket and an installation tool thereof. Background Art

[0002] Grounding refers to the connection of the neutral point of the power system and electrical devices, the exposed conductive parts of electrical equipment and the external conductive parts of the device to the earth through conductors. In the photovoltaic power station system, the grounding design is a crucial part of the electrical design, which is related to the equipment safety and personnel safety of the power station. A good grounding design can ensure that the power station is in a safe operating environment for a long time, reduce the frequency of failures in the power station, and improve the overall operating efficiency of the power station.

[0003] The frame of the solar photovoltaic panel is made of aluminum profile. Due to the processing technology and anti-corrosion performance requirements, the surface is a non-conductive layer. The traditional grounding method of photovoltaic panels in photovoltaic power stations is to insert bolts into the prefabricated holes in the photovoltaic panel frame, and then clamp the grounding wire with nuts. The other end of the grounding wire is connected to the photovoltaic bracket to achieve the effect of conductive grounding. The grounding steps are cumbersome, and the wire is exposed to the outside, which is easily corroded, causing the grounding wire to fail, resulting in grounding failure. Summary of the invention

[0004] The object of the present invention is to provide a groundable rivet for a photovoltaic power station bracket and an installation tool thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A grounding rivet for a photovoltaic power station bracket, comprising a riveted pull rod and a tension sleeve;

[0007] The riveting pull rod comprises a riveting head part and a fixing rod part. The bottom surface of the riveting head part is provided with a plurality of protrusions, and the protrusions are used to pierce the insulating layer of the clamped part so that the rivet is connected and grounded with the clamped part. The fixing rod part passes through the clamped part, and a clamping part is provided on its outer periphery.

[0008] The tensioning sleeve is provided with a through hole for the fixing rod to pass through, and the aperture of the through hole is larger than the diameter of the fixing rod. The aperture of the tensioning sleeve can be reduced by an installation tool so that the clamping part is embedded in the tensioning sleeve and fixed. At the same time, the riveting head and the end of the tensioning sleeve are respectively located on both sides of the clamped part to clamp it.

[0009] Beneficial effects of the present invention:

[0010] The present invention only needs one step to fix the rivet on the clamped part, and can also realize the grounding of the rivet, eliminating the conductive grounding effect achieved by wiring, simplifying the operation steps, ensuring the long-term effectiveness of the grounding effect, and avoiding the situation where the grounding wire is forgotten, so that the microcurrent of the component is transmitted to the photovoltaic bracket through the fastener.

[0011] According to a further technical solution, the tension sleeve comprises a second riveting head, one side of the second riveting head corresponds to the first riveting head, and the other side is connected to a fixing sleeve, wherein the fixing sleeve is provided with three limiting points distributed at 120°.

[0012] According to a further technical solution, the second riveting head is provided with a conical surface at the opening of the through hole.

[0013] According to a further technical solution, the clamping portion is a thread, and the thread is arranged along the length direction of the fixed rod.

[0014] According to a further technical solution, the length of the fixing sleeve is smaller than the length of the fixing rod.

[0015] An installation tool, comprising the above-mentioned grounding rivet and a positioning sleeve;

[0016] A movable groove is provided in the positioning sleeve, a reducing sleeve is installed at the end of the movable groove, a deformable fixing part is passed through the reducing sleeve, one end of the fixing part is used for detachable connection with the fixing rod, and the other end passes through the reducing sleeve and extends into the movable groove to be connected with the power component. The power component is also connected to the positioning sleeve, so that the positioning sleeve and the fixing part move relative to each other and in the opposite direction.

[0017] Beneficial effects of the present invention:

[0018] The present invention can realize the relative movement of the rivet parts through the installation tool of the present invention, and quickly achieve the purpose of piercing grounding and riveting fixing.

[0019] According to a further technical solution, the fixing portion comprises a connecting seat, the connecting seat is fixed with a positioning needle passing through the reducing sleeve and a plurality of connecting columns, the plurality of connecting columns are arranged at intervals around the positioning column, and clamping claws are provided at the ends of the connecting columns, and the plurality of clamping claws can be closed and enter into the reducing sleeve.

[0020] According to a further technical solution, the connecting seat is connected to the power assembly via an adapter.

[0021] According to a further technical solution, the reducing sleeve is detachably connected to the positioning sleeve.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : The usage status diagram of the present invention.

[0024] Figure 2 : A state diagram before rivet fixing of the present invention.

[0025] Figure 3 : A state diagram of the rivet after fixing of the present invention.

[0026] Figure 4 : A top view of the tensioning sleeve of the present invention.

[0027] Figure 5 : A diagram showing the installation tool of the present invention before use.

[0028] Figure 6 : State diagram of the installation tool of the present invention after use.

[0029] Figure markings: 1-rivet, 11-riveting rod, 111-riveting head one, 112-fixing rod, 113-bump, 114-clamping part, 12-tensioning sleeve, 121-through hole, 122-riveting head two, 123-fixing sleeve, 124-limiting point, 21-positioning sleeve, 22-movable groove, 23-reducing sleeve, 24-fixing part, 241-connecting seat, 242-positioning needle, 243-connecting column, 244-clamping claw, 25-adapter, 3-clamped part. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Please refer to Figure 1-6 ;

[0032] The rivet described in the present invention has a grounding function, does not require an external wire, and simplifies the installation process; specifically, it includes a riveted pull rod 11 and a tension sleeve 12. When in use, the riveted pull rod 11 passes through the clamped part 3 from one end, and the tension sleeve 12 is sleeved on the riveted pull rod 11 from the other side of the clamped part 3 to form a clamped state. Further, the riveted pull rod 11 includes a riveting head 111 and a fixed rod 112. The bottom surface of the riveting head 111 is provided with a plurality of protrusions 113. Preferably, the number of the protrusions 113 is three and they are distributed at 120°. The outer periphery of the fixed rod 112 is provided with a clamping portion 114. Preferably, the clamping portion 114 is a thread, and the thread is arranged along the length direction of the fixed rod 112. The tension sleeve 12 is provided with a through hole 121 for the fixed rod 112 to pass through, and the aperture of the through hole 121 is larger than the diameter of the fixed rod 112.

[0033] Normally, the rivet 1 needs to be fixed with a tool, by which external force is applied to the tensioning sleeve 12 and the fixing rod 112 respectively, so that the two can have a slight relative movement, that is, the riveting head and the end of the tensioning sleeve 12 apply pressure to the two sides of the clamped part 3 respectively, so that the protrusion 113 can pierce the insulating layer on the surface of the clamped part 3 and contact the metal inside it, so as to achieve grounding of the rivet 1, and then the tensioning sleeve 12 is squeezed and deformed to both sides so that the clamping part 114 can be embedded in the side wall of the tensioning sleeve 12 to achieve fixation of the two, and the riveted pull rod 11 and the tensioning sleeve 12 are also tightly fixed on the clamped part 3, so that quick installation can be achieved. Preferably, the height of the protrusion is 2-3mm, and its embedded plate depth is ≥18mm, which can pierce the insulating layer on the surface of the clamped part 3 to achieve grounding. The thickness of the insulating layer is usually 0.8-1.5mm.

[0034] Based on the above process, only one step is needed to fix the rivet 1 on the clamped part 3, and at the same time, the rivet 1 can be grounded, eliminating the conductive grounding effect achieved by wiring, simplifying the operation steps, ensuring that the grounding effect is effective for a long time, and avoiding the situation where the grounding wire is forgotten, so that the microcurrent of the component is transmitted to the photovoltaic bracket through the fastener.

[0035] In the embodiment of the present invention, the tensioning sleeve 12 includes a second riveting head 122, one side of the second riveting head 122 corresponds to the first riveting head 111, and the other side is connected to a fixing sleeve 123, and the fixing sleeve 123 is provided with three limit points 124 distributed at 120°. When the fixing rod 112 enters the fixing sleeve 123, the three limit points 124 can ensure that the fixing rod 112 is centrally arranged, thereby ensuring the effect of the subsequent riveting process. In addition, the second riveting head 122 is provided with a conical surface at the opening of the through hole 121 to facilitate the entry of the fixing rod 112.

[0036] In the embodiment of the present invention, the length of the fixing sleeve 123 is shorter than the length of the fixing rod 112 , so that it is convenient to use tools for riveting.

[0037] The present invention discloses an installation tool for operating the above-mentioned rivet 1, specifically comprising a positioning sleeve 21, wherein the positioning sleeve 21 is provided with a movable groove 22, wherein the movable groove 22 extends to both ends of the positioning sleeve 21 to form an opening, wherein a reducing sleeve 23 is installed at the opening at one end, wherein the aperture of the reducing sleeve 23 is smaller than the outer diameter of the fixing sleeve 123, wherein a deformable fixing portion 24 is penetrated through the reducing sleeve 23, wherein one end of the fixing portion 24 is used for detachably connecting with the fixing rod 112, and the other end thereof passes through the reducing sleeve 23 and extends into the movable groove 22 to connect with a power assembly (not shown), wherein in the present embodiment, the power assembly may be electric, pneumatic or hydraulic, etc., which is not limited here;

[0038] During operation, the riveted pull rod 11 passes through the clamped part 3 from one end, and the tension sleeve 12 is sleeved on the riveted pull rod 11 from the other side of the clamped part 3 to form a clamped state, and then the end of the fixed rod 112 enters the end of the fixed part 24, and then the power component applies a pulling force in a direction to the fixed part 24, or the power component applies a thrust to the positioning sleeve 21 to make it move in the direction of the tension sleeve 12, or simultaneously applies a pulling force to the fixed part 24 and a thrust to the positioning sleeve 21 to make the two move relative and oppositely; in this process, the relative position of the fixed part 24 and the fixed rod 112 is kept unchanged, and when the fixed part 24 is close to one side of the fixed rod 112, the fixed part 24 is moved to the fixed part 112. After the end contacts with the reducing sleeve 23, the end of the fixing portion 24 will be deformed and contracted to hold the end of the fixing rod 112 tightly under the continuous application of external force, and at the same time, the fixing rod 112 will be pulled into the reducing sleeve 23, so that the end of the reducing sleeve 23 contacts the end of the fixing sleeve 123. Since the hole diameter in the reducing sleeve 23 is smaller than the outer diameter of the fixing sleeve 123, under the continuous application of external force, the tensioning sleeve 12 and the fixing rod 112 can firstly have a slight relative movement, that is, the riveting head and the end of the tensioning sleeve 12 respectively apply pressure to the two sides of the clamped part 3, so that the protrusion 113 can pierce the insulating layer on the surface of the clamped part 3 and contact the metal inside it, so as to achieve grounding;

[0039] In this embodiment, there are several protrusions. After being embedded in the clamped part, the force points of the riveting head can be dispersed to the various protrusions and transmitted to the clamped part. In addition, the several protrusions have a clamping effect, so that the overall anti-loosening, anti-theft and anti-vibration functions are replaced, and the tensile strength is ≥6200N, and the shear strength is ≥6800N.

[0040] Afterwards, the tensioning sleeve 12 and the fixed rod 112 cannot further move relative to each other, and the reducing sleeve 23 applies lateral extrusion deformation to the fixed sleeve 123 and pulls it into the channel of the reducing sleeve 23. At this time, the inner diameter of the part of the fixed sleeve 123 located in the channel of the reducing sleeve 23 becomes smaller, so that the clamping portion 114 can be embedded in the fixed sleeve 123 and fixed. Preferably, the end of the reducing sleeve 23 is provided with a tapered surface to facilitate the entry of the fixed sleeve 123.

[0041] The installation tool of the present invention can realize the relative movement of the rivet 1 component, and quickly achieve the purpose of piercing grounding and riveting fixation.

[0042] In the embodiment of the present invention, the fixing portion 24 includes a connecting seat 241, and the connecting seat 241 is fixed with a positioning pin 242 and a plurality of connecting posts 243 that pass through the reducing sleeve 23. The plurality of connecting posts 243 are arranged at intervals around the positioning pin, and a clamping claw 244 is provided at the end of the connecting post 243. The plurality of connecting posts 243 and the clamping claw 244 are opened in the initial state. When in use, the end of the positioning pin 242 abuts against the end of the fixing rod 112. During the movement, the fixing rod 112 and the clamping claw 244 are prevented from being misaligned and unable to be clamped. The plurality of clamping claws 244 are closed and enter the reducing sleeve 23.

[0043] Preferably, the fixing rod 112 is provided with threads or teeth, and the inner side of the clamping jaws 244 is also provided with teeth, so that the clamping jaws 244 can mesh with each other when they are closed.

[0044] Furthermore, the connection base 241 is connected to the power assembly via the adapter 25, and can be connected to different power assemblies by replacing different connectors.

[0045] Furthermore, the reducing sleeve 23 and the positioning sleeve are detachably connected, specifically by a threaded connection. In actual applications, the size of the rivet 1 is not limited, and different rivets 1 can be fixed by replacing different reducing sleeves 23. Of course, when replacing the reducing sleeve 23, the fixing part 24 needs to be replaced at the same time to adapt to different screws.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A grounding rivet for a photovoltaic power station bracket, comprising a riveting rod (11) and a tension sleeve (12), characterized in that: The riveting pull rod (11) comprises a riveting head (111) and a fixing rod (112), the bottom surface of the riveting head (111) being provided with a plurality of protrusions (113), the protrusions (113) being used to pierce the insulating layer of the clamped part (3) so that the rivet is connected to the clamped part and grounded, the fixing rod (112) passing through the clamped part, and a clamping part (114) being provided on its outer periphery; The tension sleeve (12) is provided with a through hole (121) for the fixing rod (112) to pass through, the through hole (121) having a diameter larger than the diameter of the fixing rod (112), the tension sleeve (12) can reduce the diameter of the through hole by means of an installation tool, so that the clamping portion (114) is embedded in the tension sleeve (12) and fixed, and at the same time, the riveting head (111) and the end of the tension sleeve (12) are respectively located on both sides of the clamped part to clamp it.

2. The grounding rivet for a photovoltaic power station bracket according to claim 1 is characterized in that: The tensioning sleeve (12) comprises a second riveting head (122), one side of the second riveting head (122) corresponds to the first riveting head (111), and the other side is connected to a fixing sleeve (123), and the fixing sleeve (123) is internally provided with three limiting points (124) distributed at 120 degrees.

3. The grounding rivet for a photovoltaic power station bracket according to claim 1 is characterized in that: The second riveting head (122) is provided with a conical surface at the opening of the through hole (121).

4. The grounding rivet for a photovoltaic power station bracket according to claim 1, characterized in that: The clamping portion (114) is a thread, and the thread is arranged along the length direction of the fixing rod portion (112).

5. The grounding rivet for a photovoltaic power station bracket according to claim 1, characterized in that: The length of the fixing sleeve (123) is smaller than the length of the fixing rod (112).

6. An installation tool, characterized in that: Comprising the grounding rivet and positioning sleeve (21) as described in any one of claims 1 to 5; The positioning sleeve (21) is provided with a movable groove (22), and a reducing sleeve (23) is installed at the end of the movable groove (22). A deformable fixing portion (24) is passed through the reducing sleeve (23). One end of the fixing portion (24) is used for detachable connection with the fixing rod (112), and the other end passes through the reducing sleeve (23) and extends into the movable groove (22) to be connected with a power component. The power component is also connected to the positioning sleeve (21), so that the positioning sleeve (21) and the fixing portion (24) move relative to each other and in the opposite direction.

7. An installation tool according to claim 6, characterized in that: The fixing portion (24) comprises a connecting seat (241), the connecting seat (241) being fixedly provided with a positioning needle (242) passing through the reducing sleeve (23) and a plurality of connecting posts (243), the plurality of connecting posts (243) being arranged at intervals around the positioning post, and a clamping claw (244) being provided at the end of the connecting post (243), the plurality of clamping claws (244) being able to close and enter into the reducing sleeve (23).

8. An installation tool according to claim 7, characterized in that: The connecting seat (241) is connected to the power component via an adapter (25).

9. The installation tool according to claim 6, characterized in that: The reducing sleeve (23) is detachably connected to the positioning sleeve.

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