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

Abstract

The utility model 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 utility model, 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 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 utility model belongs to the technical field of riveting and fixing parts, and particularly relates to a grounding 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 a power system and electrical equipment, the exposed conductive part of electrical equipment, and the external conductive part of the device to the earth via a conductor. In a photovoltaic power station system, the design of grounding is a crucial part of 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 operates in a safe environment for a long time, reduce the failure frequency of the power station, and improve the overall operation efficiency of the power station.

[0003] The frame of a solar photovoltaic panel is made of aluminum profiles, and its surface is a non-conductive layer due to processing technology and anti-corrosion performance requirements. The traditional grounding method for photovoltaic panels in a photovoltaic power station is to pass a bolt through a prefabricated hole in the frame of the photovoltaic panel, and then clamp the grounding wire with a nut. 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 outside, which is easily corroded and causes the grounding wire to fail, resulting in grounding failure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a grounding rivet for a photovoltaic power station bracket and an installation tool thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grounding rivet for a photovoltaic power station bracket includes a riveting pull rod and a tightening sleeve;

[0007] The riveting pull rod includes a first riveting head and a fixing rod part. The bottom surface of the first riveting head is provided with a plurality of convex points, which are used to pierce the insulating layer of the clamped part to make the rivet communicate with the clamped part for grounding. The fixing rod part passes through the clamped part, and a clamping part is arranged on its outer periphery;

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

[0009] Advantages of the Utility Model

[0010] The utility model only needs to adopt one step to fix the rivet on the clamped part, and at the same time can realize the grounding of the rivet, removing the need for conductive grounding through wiring, simplifying the operation steps, ensuring the long-term effectiveness of the grounding effect, and also avoiding the situation of forgetting to connect the ground wire, so that the micro-current of the component is transmitted to the photovoltaic bracket through the fastener.

[0011] Further technical solution, the tensioning sleeve includes a second riveting head, one side of the second riveting head corresponds to the first riveting head, and the other side is connected with a fixing sleeve, and three limiting points distributed at 120° are arranged inside the fixing sleeve.

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

[0013] Further technical solution, the clamping part is a thread, and the thread is arranged along the length direction of the fixing rod part.

[0014] Further technical solution, the length of the fixing sleeve is less than the length of the fixing rod part.

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

[0016] An activity groove is arranged inside the positioning outer sleeve, a diameter-reducing sleeve is installed at the end of the activity groove, a deformable fixing part is arranged through the diameter-reducing sleeve, one end of the fixing part is used for detachably connecting with the fixing rod part, and the other end passes through the diameter-reducing sleeve and extends into the activity groove to be connected with a power assembly, and the power assembly is also connected with the positioning outer sleeve, so that the positioning outer sleeve and the fixing part move relatively and in opposite directions.

[0017] The beneficial effects of the utility model:

[0018] Through the installation tool of the utility model, the relative movement of the rivet component can be realized, and the purposes of piercing grounding and riveting and fixing can be quickly realized.

[0019] Further technical solution, the fixing part includes a connecting seat, a positioning pin passing through the diameter-reducing sleeve and several connecting columns are fixedly arranged on the connecting seat, several connecting columns are arranged at intervals around the positioning column, and clamping jaws are arranged at the ends of the connecting columns, and several clamping jaws can be closed and enter the diameter-reducing sleeve.

[0020] Further technical solution, the connecting seat is connected with the power assembly through a rotary joint.

[0021] Further technical solution, the diameter-reducing sleeve is detachably connected with the positioning sleeve.

[0022] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation part. Description of the drawings

[0023] Figure 1 : Use state diagram of the present utility model.

[0024] Figure 2 : State diagram before rivet fixation of the present utility model.

[0025] Figure 3 : State diagram after rivet fixation of the present utility model.

[0026] Figure 4 : Top view of the tensioning sleeve of the present utility model.

[0027] Figure 5 : State diagram before use of the installation tool of the present utility model.

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

[0029] Reference numerals in the drawings: 1 - rivet, 11 - riveting pull rod, 111 - first riveting head, 112 - fixed rod part, 113 - bump, 114 - clamping part, 12 - tensioning sleeve, 121 - through hole, 122 - second riveting head, 123 - fixed sleeve, 124 - limit point, 21 - positioning outer sleeve, 22 - movable groove, 23 - reduced diameter sleeve, 24 - fixing part, 241 - connecting seat, 242 - positioning pin, 243 - connecting column, 244 - clamping jaw, 25 - adapter, 3 - clamped part. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0031] Please refer to Figure 1-6 ;

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

[0033] Under normal circumstances, the rivet 1 needs to be fixed using a tool. By applying external forces to the tension sleeve 12 and the fixed rod portion 112 respectively through this tool, a slight relative movement can occur between the two, that is, the riveting head and the end portion of the tension sleeve 12 apply pressure to both sides of the clamped part 3 respectively, so that the bump 113 can pierce the insulating layer on the surface of the clamped part 3 and contact the metal inside it, realizing the grounding of the rivet 1. Then, the tension sleeve 12 is squeezed and deformed to both sides so that the clamping portion 114 can be embedded into the side wall of the tension sleeve 12 to fix the two, and the riveting rod 11 and the tension sleeve 12 are also firmly fixed on the clamped part 3, enabling rapid installation. Preferably, the height of the bump is 2 - 3 mm, and its embedding plate depth ≥ 18 mm, which can pierce the insulating layer on the surface of the clamped part 3 to achieve grounding. Usually, the thickness of the insulating layer is 0.8 - 1.5 mm.

[0034] Based on the above process, only one step is required to fix the rivet 1 on the clamped part 3, and at the same time, the grounding of the rivet 1 can be achieved. The method of achieving conductive grounding through wiring is removed, simplifying the operation steps, ensuring the long-term effectiveness of the grounding effect, and can also avoid the situation of forgetting to connect the ground wire, enabling the micro-current of the component to be transmitted to the photovoltaic bracket through the fastener.

[0035] In the embodiment of the present utility model, the tension 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 with a fixed sleeve 123. Three limit points 124 distributed at 120° are arranged inside the fixed sleeve 123. When the fixed rod portion 112 enters the fixed sleeve 123, these three limit points 124 can ensure that the fixed rod portion 112 is centered, 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, facilitating the entry of the fixed rod portion 112.

[0036] In the embodiment of the present utility model, the length of the fixed sleeve 123 is less than the length of the fixed rod portion 112, facilitating the use of a tool for riveting.

[0037] The present utility model discloses an installation tool for operating the above-mentioned rivet 1, which specifically includes a positioning outer sleeve 21. An activity groove 22 is arranged inside the positioning outer sleeve 21, and this activity groove 22 extends to both ends of the positioning outer sleeve 21 to form openings. A reduced-diameter sleeve 23 is installed at the opening at one end. The aperture in the reduced-diameter sleeve 23 is smaller than the outer diameter of the fixed sleeve 123. A deformable fixing portion 24 is arranged through the reduced-diameter sleeve 23. One end of the fixing portion 24 is used for detachably connecting with the fixed rod portion 112, and the other end passes through the reduced-diameter sleeve 23 and extends into the activity groove 22 to be connected with a power component (not shown). In this embodiment, the power component can be electric, pneumatic, hydraulic, etc., which is not limited herein;

[0038] During operation, when in use, the riveting pull rod 11 passes through the workpiece to be clamped 3 from one end, and the tension sleeve 12 is sleeved on the riveting pull rod 11 from the other side of the workpiece to be clamped 3 to form a clamping state. Then, the end of the fixed rod portion 112 enters the end of the fixed portion 24. After that, the power assembly applies a tensile force in a certain direction to the fixed portion 24, or the power assembly applies a thrust to the positioning outer sleeve 21 to make it move towards the tension sleeve 12, or simultaneously applies a tensile force to the fixed portion 24 and a thrust to the positioning outer sleeve 21 to make them move relatively and in opposite directions; during this process, the relative positions of the fixed portion 24 and the fixed rod portion 112 are kept unchanged. When the end of the fixed portion 24 close to the fixed rod portion 112 abuts against the reduced-diameter sleeve 23, under the continuous application of an external force, the end of the fixed portion 24 will deform and shrink to tightly hold the end of the fixed rod portion 112, and at the same time, the fixed rod portion 112 will be pulled into the reduced-diameter sleeve 23, making the end of the reduced-diameter sleeve 23 abut against the end of the fixed sleeve 123. Since the inner diameter of the reduced-diameter sleeve 23 is smaller than the outer diameter of the fixed sleeve 123, under the continuous application of an external force, first, the tension sleeve 12 and the fixed rod portion 112 can have a slight relative movement, that is, the riveting head and the end of the tension sleeve 12 respectively apply pressure to both sides of the workpiece to be clamped 3, so that the bump 113 can pierce the insulating layer on the surface of the workpiece to be clamped 3 and contact the metal inside it to achieve grounding;

[0039] In this embodiment, there are several bumps. After being embedded in the workpiece to be clamped, the stress points of the first riveting head can be dispersed to each bump and transmitted to the workpiece to be clamped. Moreover, several bumps play a clamping effect, making the overall anti-loosening, anti-theft, and anti-vibration functions better. The tensile strength ≥ 6200N, and the shear strength ≥ 6800N.

[0040] After that, the tension sleeve 12 and the fixed rod portion 112 cannot move relative to each other further. The reduced-diameter sleeve 23 applies a lateral extrusion force to the fixed sleeve 123 to deform it and pull it into the channel of the reduced-diameter sleeve 23. At this time, the inner diameter of the part of the fixed sleeve 123 located in the channel of the reduced-diameter sleeve 23 becomes smaller, so that the clamping portion 114 can be embedded in the fixed sleeve 123 for fixation. Preferably, the end of the reduced-diameter sleeve 23 is provided with a conical surface to facilitate the entry of the fixed sleeve 123.

[0041] Through the installation tool of the present utility model, the relative movement of the rivet 1 component can be realized, and the purposes of piercing grounding and riveting fixation can be quickly achieved.

[0042] In the embodiment of the present utility model, the fixing part 24 includes a connecting seat 241. The connecting seat 241 is fixedly provided with a positioning pin 242 passing through the reduced-diameter sleeve 23 and a plurality of connecting columns 243. The plurality of connecting columns 243 are arranged at intervals around the positioning column, and clamping jaws 244 are provided at the ends of the connecting columns 243. The plurality of connecting columns 243 and the clamping jaws 244 are in an open state in the initial state. During use, the end of the positioning pin 242 abuts against the end of the fixed rod part 112. During the movement process, the fixed rod part 112 and the clamping jaws 244 are prevented from being misaligned and unable to be clamped. The plurality of clamping jaws 244 close and enter the reduced-diameter sleeve 23;

[0043] Preferably, the fixed rod part 112 is provided with threads or teeth, and teeth are also provided on the inner side of the clamping jaws 244. When the plurality of clamping jaws 244 close, they can mesh with each other.

[0044] Furthermore, the connecting seat 241 is connected to the power assembly through a swivel joint 25, and different power assemblies can be connected by replacing different connectors.

[0045] Furthermore, the reduced-diameter sleeve 23 is detachably connected to the positioning sleeve, specifically by thread connection. In practical applications, the size of the rivet 1 is not limited. Different rivets 1 can be fixed by replacing different reduced-diameter sleeves 23. Of course, when replacing the reduced-diameter sleeve 23, the fixing part 24 needs to be replaced simultaneously to adapt to different screws.

[0046] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A groundable 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 groundable rivet for a photovoltaic power station bracket according to claim 1, 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 groundable rivet for a photovoltaic power station support according to claim 2, characterized in that: The second riveting head (122) is provided with a conical surface at the opening of the through hole (121).

4. The groundable rivet for a photovoltaic power station support 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 groundable rivet for a photovoltaic power station support according to claim 2, 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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