CN209309102U - A photovoltaic bolt - Google Patents

Abstract

The utility model discloses a photovoltaic bolt, which comprises a screw rod, the rear side of the outer surface of the screw rod is provided with an external thread, the outer surface of the external thread is threaded with a nut through an internal thread, and the inner upper end of the nut is provided with a thread The inner bottom surface of the threaded hole is provided with a connecting through hole, the inner surface of the threaded hole is threaded with a plug screw, and the lower surface of the plug screw is slidably connected to the upper surface of the connecting through hole through a tapered head , the upper surface of the plug screw is provided with a connecting hexagonal hole, the outer front side of the screw rod is slidingly sleeved with a flat gasket, and the front side surface of the flat gasket is provided with a shallow groove, and the shallow groove The inner surface of the groove is slidingly connected with a spring washer, and the photovoltaic bolt positions the spring washer through the shallow groove on the flat washer, combined with the outer hexagon head with the inner hexagon hole, which can greatly improve the stability of use and ensure disassembly Ease of maintenance.

Description

A photovoltaic bolt

technical field

The utility model relates to the technical field of bolts, in particular to a photovoltaic bolt.

Background technique

In the photovoltaic power generation technology, it is necessary to install the photovoltaic panel on the bracket for positioning, but now it is generally installed and fixed by bolts.

However, the existing photovoltaic bolts still have some shortcomings in use. For example, flat washers and nuts are used for connection, which is inconvenient to center the spring washers, and it is easy to be crushed due to misalignment, which affects the stability of the fixation. It is not convenient to limit the position of the screw, and it is easy to loosen. At the same time, after long-term installation and use, it is easy to rust, or the outer hexagon is severely worn, so it is inconvenient to connect the outer hexagonal wrench when disassembling, and it is also inconvenient to lubricate the thread. Disassembly and maintenance Very laborious.

Utility model content

The purpose of this utility model is to provide a photovoltaic bolt to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solution: a photovoltaic bolt, including a screw rod, the rear side of the outer surface of the screw rod is provided with an external thread, and the outer surface of the external thread is threaded with a nut through an internal thread. The inner upper end of the nut is provided with a threaded hole, and the inner bottom surface of the threaded hole is provided with a connecting through hole;

The inner surface of the threaded hole is threadedly connected with a plug screw, the lower surface of the plug screw is slidably connected to the upper surface of the connecting through hole through a tapered head, and the upper surface of the plug screw is provided with a connecting hexagon socket ;

The outer front side of the screw is slidably sleeved with a flat washer, the front side surface of the flat washer is provided with a shallow groove, and the inner surface of the shallow groove is slidably connected with a spring washer.

Preferably, the shallow groove has a depth of 0.5 mm to 1 mm.

Preferably, the rear end surface of the screw rod is fixedly connected with a connecting head, the outer surface of the connecting head is provided with an annular groove, an inner rod is arranged inside the annular groove, and a cross threading hole is arranged inside the inner rod .

Preferably, the front end surface of the screw rod is provided with an outer hexagonal head, the center of the front end surface of the outer hexagonal head is provided with an inner hexagonal hole, and the outer side of the front end surface of the outer hexagonal head is provided with an annular connecting groove. The inner surface of the connection groove is provided with a card slot, and the inner surface of the card groove is clamped with a connecting ring through a chuck, and the outer front side of the connecting ring is fixedly connected with a plastic cover plate.

Compared with the prior art, the beneficial effect of the utility model is that the photovoltaic bolt locates the spring washer through the shallow groove on the flat washer, assists the centering, and avoids the dislocation of the opening position. It is easy to add lubricant to lubricate and disassemble. Combined with the external hexagonal head with the installation hexagonal hole, both the external hexagonal wrench and the internal hexagonal wrench can be used, which is convenient for disassembly. At the same time, the steel wire can pass through the cross threading hole to connect the screw rods , to avoid loosening and loss, which can greatly improve the stability of use and ensure the convenience of disassembly and maintenance.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the partial sectional schematic diagram of nut of the present utility model;

Fig. 3 is a schematic cross-sectional view of a cross-threading hole of the present invention;

Fig. 4 is a schematic side view of the outer hexagonal head of the present invention.

In the figure: 1 screw rod, 11 external thread, 12 internal thread, 13 nut, 14 threaded hole, 15 connecting through hole, 16 plug screw, 17 conical head, 18 connecting inner hexagonal hole, 2 flat gasket, 21 shallow concave Groove, 22 spring washer, 23 connector, 24 ring groove, 25 inner rod, 26 cross threading hole, 3 outer hexagon head, 31 installation hexagon hole, 32 ring connection groove, 33 card groove, 34 connection ring, 35 plastic cover plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a photovoltaic bolt, including a screw 1, the rear side of the outer surface of the screw 1 is provided with an external thread 11, and the outer surface of the external thread 11 is threaded through an internal thread 12. There is a nut 13, the inner upper end of the nut 13 is provided with a threaded hole 14, and the inner bottom surface of the threaded hole 14 is provided with a connecting through hole 15, which is convenient for adding lubricant to the inside and can directly act on the external thread 11 to ensure the convenience of disassembly;

The inner surface of the threaded hole 4 is threadedly connected with a plug screw 16, and the lower surface of the plug screw 16 is slidably connected to the upper surface of the connecting through hole 15 through a tapered head 17, which is convenient for connection and positioning, and can seal the connecting through hole 15. To avoid blockage caused by the entry of sundries, improve the safety and stability of use, the upper surface of the plug screw 16 is provided with a connecting hexagonal hole 18;

The outer front side of the screw 1 is slidably buttressed with a flat washer 2, the front side surface of the flat washer 2 is provided with a shallow groove 21, and the inner surface of the shallow groove 21 is slidably connected with a spring washer 22, which can assist positioning and ensure It is neutral and avoids misalignment due to the opening position of the spring washer 22, which is stable and efficient.

The depth of the shallow groove 21 is 0.5 mm to 1 mm, which can not only limit the position, but also ensure that the spring washer 22 protrudes to the outside, so that the outer hexagonal head 3 can be pressed and positioned.

The rear end surface of the screw rod 1 is fixedly connected with a connector 23, the outer surface of the connector 23 is provided with an annular groove 24, the inside of the annular groove 24 is provided with an inner rod 25, and the inside of the inner rod 25 is provided with a cross threading hole 26, which can be threaded through A plurality of screw rods 1 are connected through wire ropes to avoid loosening and loss, and improve the safety and stability of installation and positioning.

The front surface of the screw 1 is provided with an outer hexagonal head 3, and the center of the front end surface of the outer hexagonal head 3 is provided with an inner hexagonal hole 31, which can be inserted into an inner hexagonal wrench for rotation and disassembly, which has high adaptability and is more convenient. The outer surface of the front end is provided with an annular connecting groove 32, and the inner surface of the annular connecting groove 32 is provided with a clamping groove 33, and the inner surface of the clamping groove 33 is clamped with a connecting ring 34 by a chuck, and the outer front side of the connecting ring 34 is fixedly connected with a plastic The cover plate 35 can cover the installation hexagon hole 31 to avoid blockage caused by entry of soil.

When the utility model is actually implemented: when in use, the spring washer 22 can be placed inside the shallow groove 21, combined with the flat washer 2 and placed on the screw 1 at the same time, for easy positioning, and then the screw can be connected when it is connected. 1 Insert it into the case hole, then thread the nut 13 from the other side, and tighten and fix it with the outer hexagon head 3 on the front side. 1 is connected, on the one hand, the nut 13 is limited to avoid complete loosening; on the other hand, the loss of the screw 1 can be avoided, which is safe and stable. When the outer hexagonal head 3 is worn out, the outer hexagonal wrench cannot be used, and the plastic cover can be pulled out 35. Use a hexagonal wrench to insert and install the inner hexagonal hole 31 and rotate it to disassemble. At the same time, you can loosen the plug screw 16, and the plug screw 16 is tightened with a small force and small diameter, which is convenient for disassembly and will not interfere. Then you can connect it from the Lubricant is added inside the through hole 15 to facilitate the disassembly of the nut 13, which is more convenient, stable and has high adaptability.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A photovoltaic bolt, comprising a screw (1), characterized in that: the rear side of the outer surface of the screw (1) is provided with an external thread (11), and the outer surface of the external thread (11) passes through the internal thread ( 12) A nut (13) is threaded, the inner upper end of the nut (13) is provided with a threaded hole (14), and the inner bottom surface of the threaded hole (14) is provided with a connecting through hole (15); The inner surface of the threaded hole (14) is threaded with a plug screw (16), and the lower surface of the plug screw (16) is slidingly connected to the upper surface of the connecting through hole (15) through a conical head (17) , the upper surface of the plug screw (16) is provided with a connecting hexagonal hole (18); The outer front side of the screw (1) is slidingly sleeved with a flat washer (2), and the front side surface of the flat washer (2) is provided with a shallow groove (21), and the shallow groove (21) The inside surface of the sliding connection has a spring washer (22). 2. The photovoltaic bolt according to claim 1, characterized in that: the shallow groove (21) has a depth of 0.5 mm to 1 mm. 3. A photovoltaic bolt according to claim 1, characterized in that: the rear end surface of the screw (1) is fixedly connected with a connector (23), and the outer surface of the connector (23) is provided with a ring A groove (24), the inner rod (25) is provided inside the annular groove (24), and a cross threading hole (26) is arranged inside the inner rod (25). 4. A photovoltaic bolt according to claim 1, characterized in that: the front surface of the screw (1) is provided with an outer hexagonal head (3), and the center of the front end surface of the outer hexagonal head (3) is provided with There is an inner hexagonal hole (31), an annular connecting groove (32) is provided on the outside of the front surface of the outer hexagonal head (3), and a card groove (33) is arranged on the inner surface of the annular connecting groove (32). A connecting ring (34) is clamped on the inner surface of the clamping groove (33) through a clamp head, and a plastic cover plate (35) is fixedly connected to the outer front side of the connecting ring (34).