Photovoltaic installation lock bolt

Abstract

The utility model relates to the field of bolts, in particular to a photovoltaic installation lock bolt which comprises a bolt body, a nut is installed on the bolt body, a tensioning sleeve is installed on the nut, the tensioning sleeve is used for tensioning the nut, a locking pin is arranged on the nut, a locking hole is formed in the tensioning sleeve, and the locking hole is used for locking the nut. The locking pin penetrates through the tensioning sleeve and extends into the locking hole to complete locking. The tensioning sleeve is installed on the nut, the nut is installed on the bolt, and the inner wall of the tensioning sleeve is attached to the bolt to achieve tensioning. The arranged locking pin enters the locking groove, so that the tensioning sleeve is locked by the locking pin; the locked nut cannot rotate on the bolt, and the anti-loosening effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of bolts, in particular to a photovoltaic installation anti-loosening bolt. Background Art

[0002] The existing anti-loosening nut is a common fastening nut used to prevent the nut from loosening during use due to vibration, impact, etc. During the installation process, photovoltaic panels need to be connected by bolts. After being tightened by the anti-loosening bolts, the photovoltaic panels are firmly connected.

[0003] Existing anti-loosening bolts are prone to the problem of tension loss during use. Friction anti-loosening bolts such as self-locking nuts will initially experience a decrease in pre-tightening force due to loosening of the bolts under impact, vibration and variable load conditions. As the number of vibrations increases, the loss of pre-tightening force slowly increases, which may eventually lead to loosening of the nut and failure of the threaded connection. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a photovoltaic installation anti-loosening bolt.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a photovoltaic installation anti-loosening bolt, comprising a bolt, a nut installed on the bolt, a tensioning sleeve installed on the nut, the tensioning sleeve being used to tension the nut, a locking pin provided on the nut, a locking hole provided on the tensioning sleeve, and the locking pin passing through the tensioning sleeve and extending into the interior of the locking hole to complete locking.

[0006] Preferably, an elastic member is provided inside the nut, the elastic member is sleeved on the locking pin, and the elastic member is used to push the locking pin to reset.

[0007] Preferably, an adjustment slot is provided on the tensioning sleeve.

[0008] Preferably, the tensioning sleeve is provided with a plurality of tensioning plates, a movable groove is provided between every two tensioning plates, and the tensioning plates are inserted into the interior of the nut for tensioning the nut.

[0009] Preferably, a locking hole is provided on the tensioning piece.

[0010] Preferably, the nut and the tensioning sleeve are internally provided with internal threads and matched with the bolt.

[0011] Preferably, a washer is provided on the bolt, and a nut is provided on one side of the washer.

[0012] Beneficial effects:

[0013] The tensioning sleeve is installed on the nut, and the nut is installed on the bolt, and the inner wall of the tensioning sleeve fits on the bolt to achieve tensioning; the locking pin is set to enter the interior of the locking groove, so that the locking pin locks the tensioning sleeve; after locking, the nut will not rotate on the bolt, achieving the effect of preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure installation of the utility model;

[0016] Figure 2 This is an exploded view of the present invention.

[0017] In the figure: 1. Bolt; 2. Washer; 3. Nut; 4. Locking pin; 5. Tensioning sleeve; 6. Adjusting slot; 7. Tensioning plate; 8. Locking hole; 9. Moving slot. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In one embodiment, please refer to the appendix of the specification. Figure 1-2 As shown, the photovoltaic installation anti-loosening bolt described in the utility model includes a bolt 1, a nut 3 is installed on the bolt 1, a tensioning sleeve 5 is installed on the nut 3, the tensioning sleeve 5 is used to tension the nut 3, a locking pin 4 is provided on the nut 3, a locking hole 8 is provided on the tensioning sleeve 5, and the locking pin 4 passes through the tensioning sleeve 5 and extends into the interior of the locking hole 8 to complete locking.

[0020] The tensioning sleeve 5 is installed on the nut 3, and the nut 3 is installed on the bolt 1. The inner wall of the tensioning sleeve 5 fits on the bolt 1 to achieve tensioning; the locking pin 4 is provided to enter the interior of the locking groove, so that the locking pin 4 locks the tensioning sleeve 5; the nut 3 after locking will not rotate on the bolt 1, achieving the anti-loosening effect.

[0021] An elastic member is provided inside the nut 3 , and the elastic member is sleeved on the locking pin 4 . The elastic member is used to push the locking pin 4 to reset.

[0022] The elastic member is used to push the locking pin 4 to move, and the locking pin 4 moves into the interior of the locking groove. The elastic member is preferably a spring.

[0023] An adjusting slot 6 is provided on the tensioning sleeve 5 .

[0024] When the tensioning sleeve 5 is spirally tightened on the bolt 1 , the adjusting groove 6 shrinks, so that the tensioning sleeve 5 is engaged with the bolt 1 .

[0025] The tensioning sleeve 5 is provided with a plurality of tensioning plates 7 , and a movable groove 9 is provided between every two tensioning plates 7 . The tensioning plates 7 are inserted into the interior of the nut 3 to tighten the nut 3 .

[0026] The tensioning piece 7 is provided so as to move along with the tensioning sleeve 5 , and the tensioning piece 7 is stuck between the bolt 1 and the nut 3 , thereby achieving an anti-loosening effect.

[0027] The tensioning piece 7 is provided with a locking hole 8 .

[0028] The nut 3 and the tensioning sleeve 5 are provided with internal threads inside and matched with the bolt 1 .

[0029] A washer 2 is provided on the bolt 1 , and a nut 3 is provided on one side of the washer 2 .

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic installation anti-loosening bolt, characterized in that: The invention comprises a bolt (1), a nut (3) is installed on the bolt (1), a tensioning sleeve (5) is installed on the nut (3), the tensioning sleeve (5) is used to tension the nut (3), a locking pin (4) is provided on the nut (3), a locking hole (8) is provided on the tensioning sleeve (5), and the locking pin (4) passes through the tensioning sleeve (5) and extends into the interior of the locking hole (8) to complete locking.

2. A photovoltaic installation anti-loosening bolt according to claim 1, characterized in that: An elastic member is provided inside the nut (3), the elastic member is sleeved on the locking pin (4), and the elastic member is used to push the locking pin (4) to reset.

3. A photovoltaic installation anti-loosening bolt according to claim 2, characterized in that: An adjusting slot (6) is provided on the tensioning sleeve (5).

4. A photovoltaic installation anti-loosening bolt according to claim 3, characterized in that: The tensioning sleeve (5) is provided with a plurality of tensioning sheets (7), a movable groove (9) is provided between every two tensioning sheets (7), and the tensioning sheets (7) are inserted into the interior of the nut (3) for tensioning the nut (3).

5. A photovoltaic installation anti-loosening bolt according to claim 4, characterized in that: A locking hole (8) is provided on the tensioning piece (7).

6. A photovoltaic installation anti-loosening bolt according to claim 5, characterized in that: The interiors of the nut (3) and the tensioning sleeve (5) are provided with internal threads and are matched with the bolt (1).

7. A photovoltaic installation anti-loosening bolt according to claim 6, characterized in that: A washer (2) is provided on the bolt (1), and a nut (3) is provided on one side of the washer (2).

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