Elastic clamp for fastening photovoltaic module

Abstract

The utility model discloses an elastic clamp for fastening a photovoltaic module, which comprises a left clamping piece and a right clamping piece which are formed by bending an elastic steel wire or pressing an elastic steel sheet, the elastic clamp is fixed on a set of mechanical clamping device, and the mechanical clamping device is fastened, so that the left clamping piece and the right clamping piece simultaneously generate fastening force in the vertical direction and fastening force in the horizontal direction. And the locking can be realized in the two directions. By using the elastic clamp for fastening the photovoltaic module, the firm installation of the photovoltaic module is realized, the labor and time are saved, and the installation efficiency is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solar photovoltaic power generation technical field relates to the installation accessories of photovoltaic module, specifically a kind of elastic clamp of fastening photovoltaic module. BACKGROUND

[0002] In the solar photovoltaic power generation technical field, photovoltaic module is used installation accessories, fixed on photovoltaic support.This installation accessory mainly has the middle pressure block and the edge pressure block buckle of the front fixed photovoltaic module, is fixed on photovoltaic support with special plastic wing screw;There are also the single-hole pressing plate and bolt set, double-hole pressing plate and U-shaped bolt of the back fixed photovoltaic module, fixed on photovoltaic support.

[0003] This installation accessory of photovoltaic module fixed by bolt screw, although firm and reliable, but a piece of photovoltaic module needs to have 4-6 fixed points, is fixed with bolt screw rotation, and it is time-consuming and inefficient to install. SUMMARY

[0004] The utility model fastening photovoltaic module's elastic clamp is the special clamp designed according to the feature of existing photovoltaic module installation structure, by elastic steel wire or elastic steel sheet, left and right clamping pieces are bent out or pressed out, and are fixed to a set of mechanical clamping device, and its characterized in that: this set of mechanical clamping device produces clamping force in horizontal direction when clamping, and also produces clamping force in vertical direction.

[0005] The elastic clamp for fastening photovoltaic module, the mechanical clamping device of which is sleeved in the middle part of steel shaft by a plurality of eccentric wheels, has a pair of left and right clamping pieces bent out by elastic steel wire or elastic steel sheet, and the elastic steel wire in the clamping piece is bent out or welded with a circular ring in the middle, or the elastic steel sheet is folded out or welded with a circular ring in the middle, is sleeved in the both ends of steel shaft, and is fixed on steel shaft by fastening piece, to form the elastic clamp for fastening photovoltaic module.

[0006] The lower end of each left and right clamping piece on the elastic clamp for fastening photovoltaic module is connected together, and the upper end crosses photovoltaic support upward, and the two arc-shaped end points on the vertical surface of photovoltaic module frame and the horizontal surface are buckled tightly.

[0007] The steel shaft is positioned by square hole or welding positioning, and two double-head eccentric wheels are fixed on the steel shaft. The double-head eccentric wheels fixed on both sides of the steel shaft are in contact with the bottom plane of the photovoltaic support. When the steel shaft is rotated 90 degrees clockwise, the eccentricity of the double-head eccentric wheel and the bottom plane of the photovoltaic support increases, the elastic steel wires or elastic steel sheets on the left and right clamping pieces are moved downward, and the end points on the horizontal plane of the frame of the photovoltaic module are buckled. At the same time, when the other end of the double-head eccentric wheel rotates the steel shaft 90 degrees clockwise, the elastic steel wires or elastic steel sheets connected between the lower ends of the left and right clamping pieces have two folding pieces connected thereto. The downward eccentric wheel of the double-head eccentric wheel makes the folding piece from about 90 degrees to about 180 degrees, so that the distance between the lower ends of the left and right clamping pieces increases. The elastic steel wires or elastic steel sheets pass through the middle ring, and the increase of the distance at this end is converted into the decrease of the distance between the upper end and the vertical plane of the frame of the photovoltaic module, so that the left and right end points of the vertical plane of the frame of the photovoltaic module are buckled, and the vertical and horizontal directions of the frame of the photovoltaic module are simultaneously fastened.

[0008] The two eccentric wheels have a plane or a slightly convex concave surface on the end surface in the long eccentricity direction, so that the two groups of eccentric wheels have self-locking function in the long eccentricity direction.

[0009] The steel shaft has a convex four-square head or an inner hexagonal hole or an inner four-square hole on the two ends, and the steel shaft can be rotated 90 degrees by using an outer plate wrench or an inner hexagonal wrench or an inner four-square wrench, so that the photovoltaic module is fastened.

[0010] The two ends of the steel shaft can be provided with torsional springs, and the two arms of the torsional springs are pressed on the lower ends of the left and right clamping pieces, so that the upper end of the elastic clamp is in a closed state.

[0011] The elastic clamp of the photovoltaic module fastened by the eccentric wheel can also be installed on the two ends of the elastic clamp by using double steel shafts, and a plate material is used to connect the left and right clamping pieces. The steel shafts are rotated respectively, so that the photovoltaic module is fastened in the vertical and horizontal directions.

[0012] The mechanical clamping device of the elastic clamp for fastening the frame of the photovoltaic module is composed of two wedge-shaped blocks in one group. The inclined surface of the upper and lower wedge-shaped blocks has a clamping connecting guide rail, and the straight surface of the two wedge-shaped blocks has a hole for inserting and fixing the left and right clamping pieces bent by elastic steel wires or elastic steel sheets.

[0013] The mechanical clamping device of the elastic clamp for fastening the frame of the photovoltaic module has a clamping connecting guide rail inside. The inside of the upper wedge-shaped block has a long ratchet strip, and the inside of the lower wedge-shaped block is provided with a ratchet claw which can be opened and closed outside.

[0014] The elastic clamp for fastening the photovoltaic module moves the upper and lower wedge-shaped blocks, drives the left and right clamping pieces bent from the elastic steel wire or elastic steel sheet, generates the clamping force in the horizontal direction of the frame of the photovoltaic module, simultaneously generates the vertical clamping force of the frame of the photovoltaic module due to the mutual movement of the two inclined surfaces of the wedge-shaped blocks, and also generates the self-locking function in the horizontal and vertical directions due to the one-way action of the ratchet and pawl.

[0015] The elastic clamp for fastening the photovoltaic module can fasten the photovoltaic module in the horizontal and vertical directions simultaneously and has the self-locking function, the deformation pressure of the elastic steel wire or elastic steel sheet enhances the reliability of the installation and fixation of the photovoltaic module, and the efficiency of the installation or dismounting and replacement of the photovoltaic module is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be through embodiment and refer to the mode of the drawings to be explained concretely, wherein:

[0017] Figure 1 It is the front view of the elastic clamp for fastening the photovoltaic module embodiment one of the utility model:

[0018] Figure 2 It is Figure 1 The side view of:

[0019] Figure 3 It is the front view of the elastic clamp for fastening the photovoltaic module embodiment two of the utility model:

[0020] Figure 4 It is Figure 3 The side view of: DETAILED DESCRIPTION

[0021] The utility model will be through embodiment and refer to the mode of the drawings to be explained concretely, wherein:

[0022] Figure 1 And Figure 2 It is the front view and side view of the elastic clamp for fastening the photovoltaic module embodiment one of the utility model: the front view and side view of the elastic clamp for fastening the photovoltaic module of a single steel shaft, and in the drawing, 1 is the left and right clamping piece, 2 is the round ring bent or welded in the middle of the left and right clamping piece, 3 is the steel shaft, 4 is the inner four corner hole at both ends of the steel shaft, 5 is the fastener nut, 1.1 is the horizontal fastening end point, 1.2 is the vertical fastening end point, 6 is the frame of the photovoltaic module, 7 is the photovoltaic support, 8 is the double-headed eccentric wheel located at both ends of the steel shaft, 9 is the folding piece connected with the lower end of the left and right clamping piece, 10 is the torsion spring, and 11 is the convex and concave locking surface at the top end of the double eccentric wheel.

[0023] Figure 3 AndFigure 4 The utility model discloses a fastening photovoltaic module elastic clamp embodiment two: a wedge square elastic clamp's front view and side view, and the figure 12 is left and right clamping piece, 12.1 is horizontal fastening end point, 12.2 is vertical fastening end point, 6 is photovoltaic module frame, 7 is photovoltaic support, 13 is the inclined plane of the upper and lower two pieces of wedge square and has the occlusal connection of guide rail, 14 is in the hole of the upper and lower two pieces of wedge square straight surface and can insert and fix left and right clamping piece, 15 is the ratchet bar in the upper wedge square, 16 is the pawl on the lower wedge square and can be opened and closed outside, 17 is wedge square.

Claims

1. An elastic clamp for fastening photovoltaic modules, comprising left and right clamping pieces (1) bent or pressed from elastic steel wire or elastic steel sheet, fixed to a mechanical clamping device, characterized in that: When clamping, this mechanical clamping device causes the left and right clamping plates (1) to generate clamping force in the horizontal direction and also in the vertical direction.

2. The elastic clamp for fastening photovoltaic modules according to claim 1, characterized in that: Its mechanical clamping device consists of several eccentric wheels fitted in the middle of the steel shaft (3). The elastic steel wires of the left and right clamping plates (1) are bent out or welded with a ring (2), or the elastic steel plates are bent out or welded with a ring (2), which are fitted on both ends of the steel shaft (3) and fixed on the steel shaft (3) with fastener nuts (5), forming an elastic clamp for fastening photovoltaic modules.

3. The elastic clamp for fastening photovoltaic modules according to claim 2, characterized in that: The lower ends of each left and right clip (1) are connected together, and the upper ends cross the photovoltaic bracket (7) and bend out two arc-shaped ends (1.1) that are fastened to the vertical surface of the photovoltaic module frame (6) and the horizontal surface (1.2).

4. The elastic clamp for fastening photovoltaic modules according to claim 2, characterized in that: Two double-headed eccentric wheels (8) are fixed on the steel shaft (3) by positioning with square holes or by welding. Rotating the steel shaft (3) clockwise by 90 degrees will simultaneously tighten the elastic clamps on the vertical end (1.1) and the horizontal end (1.2) of the photovoltaic module frame (6).

5. The elastic clamp for fastening photovoltaic modules according to claim 2, characterized in that: The end face of the double-headed eccentric wheel (8) with a long eccentricity has a flat surface or a slightly convex concave surface (11) at both ends, which has a self-locking function.

6. The elastic clamp for fastening photovoltaic modules according to claim 2, characterized in that: At both ends of the steel shaft (3), there is a protruding square head or an inner square hole (4) or an inner hexagonal hole.

7. The elastic clamp for fastening photovoltaic modules according to claim 1, characterized in that: Its mechanical clamping device is composed of two wedge-shaped blocks (17) in a set. The upper and lower wedge-shaped blocks have interlocking guide rails (13) in the inclined surfaces. The straight surfaces of the wedge-shaped blocks (17) have holes (14) for inserting and fixing the left and right clamping plates (12).

8. The elastic clamp for fastening photovoltaic modules according to claim 7, characterized in that: The upper wedge of this set of wedge blocks (17) has a ratchet (15) that extends to both ends; the lower wedge has a pawl (16) that can be opened and closed from the outside.

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