Connecting device for diagonal draw bar of photovoltaic support

Abstract

The utility model discloses a connecting device for a photovoltaic support diagonal draw bar. The connecting device comprises a screw, a first nut, a second nut, a third nut and a connecting block. The ends of the screws penetrate through the connecting blocks through the first through holes, and the two ends of the pair of screws penetrate through the two connecting blocks arranged at intervals. The end part of each screw rod is screwed with a first nut, and the first nuts are tightly propped against the opposite surfaces of the two connecting blocks; one end of a photovoltaic support diagonal draw bar penetrates through one connecting block through a second through hole, the end, away from the ground, of a variable-diameter reinforcement cage expanded head anchor rod penetrates through the other connecting block through a third through hole, the photovoltaic support diagonal draw bar is connected with a second nut in a screwed mode, and the variable-diameter reinforcement cage expanded head anchor rod is connected with a third nut in a screwed mode. The second nut and the third nut abut against the opposite faces of the two connecting blocks respectively. The utility model relates to the technical field of photovoltaic engineering, and can solve the problem that in the prior art, a steel bar connector is installed between an expanded head anchor rod and a diagonal draw bar of a variable-diameter steel reinforcement cage and cannot be tightened.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic engineering technical field especially relates to a kind of connecting device for photovoltaic support cable-stayed rod. BACKGROUND

[0002] The prior art photovoltaic support mainly includes prestressed pipe pile, prestressed cable, cable-stayed rod, reinforcing bar connector and variable-diameter reinforcing cage expansion head anchor rod, the prestressed pipe pile is vertically fixed on the ground, the adjacent two prestressed pipe piles are connected by prestressed cable, to form cable truss structure;One end of the cable-stayed rod is connected to the top of the prestressed pipe pile, the other end of the cable-stayed rod extends obliquely downward and is connected to one end of the variable-diameter reinforcing cage expansion head anchor rod through the reinforcing bar connector, the other end of the variable-diameter reinforcing cage expansion head anchor rod is buried below the ground.

[0003] The variable-diameter reinforcing cage expansion head anchor rod and the cable-stayed rod are connected through the variable-diameter reinforcing bar connector, and the positioning and angle control of the variable-diameter reinforcing cage expansion head anchor rod are required to be high during on-site construction, which leads to the error of the spacing between the variable-diameter reinforcing cage expansion head anchor rod and the cable-stayed rod, and further leads to the problem that the reinforcing bar connector of fixed length cannot be tightened, which has certain safety and quality risks. SUMMARY

[0004] The utility model aims at providing a kind of connecting device for photovoltaic support cable-stayed rod, which can solve the problem that the reinforcing bar connector in the prior art cannot be tightened between the variable-diameter reinforcing cage expansion head anchor rod and the cable-stayed rod.

[0005] The utility model is realized as follows:

[0006] A kind of connecting device for photovoltaic support cable-stayed rod, including screw rod, first nut, second nut, third nut and connecting block;First through hole is formed on the connecting block, so that the end of the screw rod can pass through the first through hole and penetrate the connecting block, and the ends of the pair of screw rods penetrate the two connecting blocks spaced apart respectively;The end of each screw rod is matched and screwed with the first nut, and the first nut is tightly pressed on the opposite side of the two connecting blocks;Second through hole is formed on one of the connecting blocks, so that the end of the photovoltaic support cable-stayed rod away from the prestressed pipe pile can penetrate the one connecting block through the second through hole, third through hole is formed on the other connecting block, and the end of the variable-diameter reinforcing cage expansion head anchor rod away from the ground can penetrate the other connecting block through the third through hole, the end of the photovoltaic support cable-stayed rod is matched and screwed with the second nut, and the end of the variable-diameter reinforcing cage expansion head anchor rod is matched and screwed with the third nut, and the second nut and the third nut are tightly pressed on the opposite side of the two connecting blocks respectively.

[0007] The two first through holes of one of the connecting blocks are symmetrically located on two sides of the second through hole, and the two first through holes of the other connecting block are symmetrically located on two sides of the third through hole.

[0008] The connecting block comprises a connecting plate and side plates; a pair of side plates are symmetrically connected at two side edges of the connecting plate, so that the cross section of the connecting block has a C-shaped structure; the first through hole, the second through hole and the third through hole are located on the connecting plate, and the first nut or the second nut is located between the pair of side plates.

[0009] The connecting plate and the pair of side plates have an integrated structure.

[0010] The plate surfaces of the connecting plates of the two connecting blocks are parallel to each other and are arranged perpendicularly to the axial direction of the screw rod, the axial direction of the photovoltaic support stay cable and the axial direction of the variable-diameter steel reinforcement cage expanded head anchor rod.

[0011] The diameter of the second through hole matches the diameter of the photovoltaic support stay cable, and the diameter of the third through hole matches the diameter of the variable-diameter steel reinforcement cage expanded head anchor rod.

[0012] The first nut is composed of two nuts in a stacked manner and is provided with a flat washer and an elastic washer.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The utility model discloses a screw rod and a connecting block, a pair of screw rods are connected on two connecting blocks, and the interval between the two connecting blocks can be adjusted according to the connection requirement of the photovoltaic support stay cable and the variable-diameter steel reinforcement cage expanded head anchor rod by the thread rotation adjustment between the screw rod and the first nut, so that the utility model has good adaptability and universality, solves the problem that the steel reinforcement connector with a fixed length in the prior art cannot be tightened, has high installation convenience and adjustment flexibility, and is simple to construct, so that the construction period of the photovoltaic support can be effectively shortened.

[0015] 2、The utility model is made of a screw rod, a nut and a section steel, is convenient for local material procurement and manufacturing, has low cost, short processing period and wide application in the connection joint between the stay cable and the variable-diameter steel reinforcement cage expanded head anchor rod of various photovoltaic supports. DRAWINGS

[0016] Figure 1 It is a structural schematic view of the connecting device for the photovoltaic support stay cable.

[0017] In the drawing, 1 is a screw rod, 21 is a first nut, 22 is a second nut, 23 is a third nut, 24 is a flat washer, 25 is an elastic washer, 3 is a connecting block, 31 is a connecting plate, 32 is a side plate, 4 is a photovoltaic support stay cable, and 5 is a variable-diameter steel reinforcement cage expanded head anchor rod. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and specific embodiments.

[0019] Please see the attached Figure 1 A kind of connecting device for photovoltaic support cable-stayed rod, including screw rod 1, first nut 21, second nut 22, third nut 23 and connecting block 3;First through-hole (not shown in the figure) is formed on connecting block 3, so that the end of screw rod can pass through first through-hole and penetrate connecting block 3, the two ends of a pair of screw rods penetrate two blocks of interval arranged connecting block 3 respectively;The end of each screw rod 1 is matched and screwed with first nut 21 respectively, and first nut 21 is tightly pressed on the opposite side of two connecting blocks 3;Second through-hole (not shown in the figure) is formed on one of connecting block 3, so that the end of photovoltaic support cable-stayed rod 4 away from pre-stressed pipe pile can pass through second through-hole and penetrate one of connecting block 3, third through-hole (not shown in the figure) is formed on the other connecting block 3, so that the end of variable-diameter reinforced cage enlarged head anchor rod 5 away from ground can pass through third through-hole and penetrate the other connecting block 3, the end of photovoltaic support cable-stayed rod 4 is matched and screwed with second nut 22, the end of variable-diameter reinforced cage enlarged head anchor rod 5 is matched and screwed with third nut 23, and second nut 22 and third nut 23 are tightly pressed on the opposite side of two connecting blocks 3 respectively.

[0020] Preferably, screw rod 1 can adopt steel screw rod with length of 600mm and diameter of 24mm, which can meet the setting interval and error adjustment range requirement between photovoltaic support cable-stayed rod 4 and variable-diameter reinforced cage enlarged head anchor rod 5.

[0021] Preferably, connecting block 3 can be made of profile steel with length of 200mm, which has higher structural strength, to avoid deformation or damage after being connected between photovoltaic support cable-stayed rod 4 and variable-diameter reinforced cage enlarged head anchor rod 5.

[0022] Two connecting blocks 3 are connected into a whole by screw rod 1, for being connected between photovoltaic support cable-stayed rod 4 and variable-diameter reinforced cage enlarged head anchor rod 5, and the interval of two connecting blocks 3 can be adjusted by screw thread rotation of screw rod 1 and first nut 21, to adapt to different intervals between photovoltaic support cable-stayed rod 4 and variable-diameter reinforced cage enlarged head anchor rod 5, and to ensure the connection reliability of photovoltaic support cable-stayed rod 4 and variable-diameter reinforced cage enlarged head anchor rod 5.

[0023] Screw rod 1 is connected with two connecting blocks 3 by first nut 21, photovoltaic support cable-stayed rod 4 is connected with one of connecting blocks 3 by second nut 22, and variable-diameter reinforced cage enlarged head anchor rod 5 is connected with the other connecting block 3 by third nut 23, which has high connection reliability, and the adjustment mode of screw thread rotation is flexible and convenient, which is conducive to improving construction efficiency and shortening construction period.

[0024] The two first through holes are symmetrically arranged on the connecting block 3, and the two first through holes of one of the connecting blocks 3 are symmetrically located on the two sides of the second through hole, and the two first through holes of the other connecting block 3 are symmetrically located on the two sides of the third through hole.

[0025] Preferably, two first through holes are arranged on each connecting block 3, so that the two screw rods 1 and the two connecting blocks 3 form a rectangular ring structure, and the connecting block 3 is stable in stress, facilitating reliable connection of the photovoltaic support stay rod 4 and the variable-diameter reinforced cage expanded head anchor rod 5.

[0026] The connecting block 3 comprises a connecting plate 31 and a side baffle 32; a pair of side baffles 32 are symmetrically connected at the two side edges of the connecting plate 31, so that the cross section of the connecting block 3 is in a C-shaped structure; the first through hole, the second through hole and the third through hole are located on the connecting plate 31, and the first nut 21 or the second nut 22 is located between the pair of side baffles 32.

[0027] Preferably, the connecting block 3 can adopt a C-shaped steel, the web of the C-shaped steel serving as the connecting plate 31 and being used for connecting the screw rod 1, the photovoltaic support stay rod 4 and the variable-diameter reinforced cage expanded head anchor rod 5, and being the main stress component. The flange of the C-shaped steel serves as the side baffle 32 and can be used for improving the structural strength and load capacity of the connecting plate 31, and can also limit the first nut 21 or the second nut 22 located between the pair of side baffles 32 and the screw rod 1, the photovoltaic support stay rod 4 and the variable-diameter reinforced cage expanded head anchor rod 5, thereby ensuring the stability and reliability of the connecting joint.

[0028] The connecting plate 31 and the pair of side baffles 32 are in an integrated structure, which is high in structural strength and not easy to be deformed and damaged.

[0029] The plate surfaces of the connecting plates 31 of the two connecting blocks are parallel to each other and are perpendicular to the axial directions of the screw rod 1, the photovoltaic support stay rod 4 and the variable-diameter reinforced cage expanded head anchor rod 5.

[0030] The screw rod 1, the photovoltaic support stay rod 4 and the variable-diameter reinforced cage expanded head anchor rod 5 are vertically installed on the connecting plate 31, so that the stress of the connecting plate 31 is perpendicular to the plate surface, thereby further avoiding deformation and damage of the connecting plate 31.

[0031] The diameter of the second through hole matches the diameter of the photovoltaic support stay rod 4, and the diameter of the third through hole matches the diameter of the variable-diameter reinforced cage expanded head anchor rod 5.

[0032] Preferably, the photovoltaic support inclined pull rod 4 is a φ25mm fine rolled threaded steel, and the variable diameter steel cage enlarged head anchor rod 5 is a φ32mm fine rolled threaded steel. The diameter of the second through hole can be slightly larger than the diameter of the photovoltaic support inclined pull rod 4 and smaller than the diameter of the second nut 22, and the diameter of the third through hole can be slightly larger than the diameter of the variable diameter steel cage enlarged head anchor rod 5 and smaller than the diameter of the second nut 22, so as to ensure that the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5 are installed on the connecting plate 31.

[0033] The first nut 21 is composed of double nuts in a stacked manner, and is provided with a flat washer 24 and an elastic washer 25.

[0034] The double-nut stacked structure increases the thread engagement area, thereby improving the connection reliability of the screw rod 1 and the connecting plate 31, and the flat washer 24 and the elastic washer 25 are arranged to ensure that the double nut 21 is tightened on the connecting plate 31, thereby reducing vibration and preventing loosening.

[0035] Please refer to the accompanying drawings Figure 1 When the photovoltaic support inclined pull rod is installed, the installation method of the utility model is as follows:

[0036] The two connecting blocks 3 are arranged at intervals, the two ends of the pair of screw rods 1 are vertically penetrated through the connecting plates 31 of the two connecting blocks 3 through the first through holes, and the interval of the two connecting blocks 3 is adjusted according to the connection requirement of the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5, so as to ensure that the end portions of the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5 do not interfere with each other after installation.

[0037] The end of the photovoltaic support inclined pull rod 4 away from the prestressed pipe pile is vertically penetrated through the second through hole in the connecting plate 31 of one of the connecting blocks 3, and the end of the variable diameter steel cage enlarged head anchor rod 5 away from the ground is vertically penetrated through the third through hole in the connecting plate 31 of the other connecting block 3. The first nut 21 is screwed on the end portion of the pair of screw rods 1, the second nut 22 and the third nut 23 are screwed on the end portions of the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5 respectively, and the first nut 21 and the second nut 22 and the first nut 21 and the third nut 23 are located on the two surfaces of the connecting plate 31 respectively.

[0038] The second nut 22, the four first nuts 21 and the third nut 23 are tightened and tightened on the two surfaces of the connecting plate 31, so that the whole connecting device forms a fixed pull joint between the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5. The actual interval between the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5 can be adjusted by screwing in and out of the first nut 21 on the screw rod 1, so as to ensure the tension of the photovoltaic support inclined pull rod 4 and the variable diameter steel cage enlarged head anchor rod 5, and solve the problem that the steel connector cannot be tightened in the prior art.

[0039] The above merely describes the preferred embodiments of the present application, but is not intended to limit the protection scope of the present application, and thus, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connecting device for a photovoltaic racking stay cable, characterized by: The utility model relates to a connecting block for prestressed pipe pile, which comprises a screw rod (1), a first nut (21), a second nut (22), a third nut (23) and a connecting block (3).

2. The connecting device for photovoltaic racking stay cables according to claim 1, characterized in that: The connecting block (3) is provided with two first through holes symmetrically, and the two first through holes of one of the connecting blocks (3) are symmetrically located on the two sides of the second through hole, and the two first through holes of the other connecting block (3) are symmetrically located on the two sides of the third through hole.

3. A connection device for photovoltaic racking stay cables according to claim 1 or 2, characterized in that: The connecting block (3) comprises a connecting plate (31) and a side baffle (32), and a pair of side baffles (32) are symmetrically connected to the two side edges of the connecting plate (31), so that the cross section of the connecting block (3) has a C-shaped structure.

4. The connecting device for photovoltaic racking stay cables according to claim 3, characterized in that: The connecting plate (31) and the pair of side baffles (32) have an integrated structure.

5. The connecting device for photovoltaic racking stay cables according to claim 3, characterized in that: The plate surfaces of the connecting plates (31) of the two connecting blocks are parallel to each other and are perpendicular to the axial directions of the screw rod (1), the photovoltaic support stay rod (4) and the variable-diameter steel cage expanded-head anchor rod (5).

6. The connecting device for photovoltaic racking stay cables according to claim 1, characterized in that: The diameter of the second through hole matches the diameter of the photovoltaic support stay rod (4), and the diameter of the third through hole matches the diameter of the variable-diameter steel cage expanded-head anchor rod (5).

7. The connecting device for photovoltaic racking stay cables according to claim 1, characterized in that: The first nut (21) is composed of two nuts in a stacked manner and is provided with a flat washer (24) and an elastic washer (25).

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