Flexible photovoltaic support anchorage device anti-loose fixing device

Abstract

The utility model relates to the field of photovoltaic technology. A flexible photovoltaic support anchorage device anti-loose fixing device comprises an anchorage device structure used for being installed on a steel strand and further comprises a locking assembly, the locking assembly comprises a wedge-shaped clamping piece, a locking sleeve, a circular ring and an anti-loose sleeve, and the periphery of the steel strand is sleeved with the anti-loose sleeve; each anti-loose sleeve comprises a threaded connection part, an extrusion part and a limiting end part which are connected in sequence; the locking sleeve is in threaded connection with the threaded connection part; a mounting notch is formed in the extrusion part; the circular ring is arranged on the periphery of the extrusion part of the anti-loose sleeve in a sleeving mode, abuts against the limiting end and is located on the local radial outer side of the wedge-shaped clamping piece; the wedge-shaped clamping piece comprises a gradual change part with the outer diameter increasing progressively, the outer wall of the gradual change part is used for abutting against the inner wall of the circular ring, and the axial end face, away from the limiting end, of the wedge-shaped clamping piece abuts against the locking sleeve. According to the utility model, through the two locking assemblies, the extrusion of the steel strand at two positions is realized. And the fixing effect on the steel strand is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and particularly relates to an anti-loosening fixing device for an anchor Background Art

[0002] A flexible photovoltaic support needs to give a certain initial pre-tension to the cable to enable the cable to have a certain stiffness to bear the load transmitted from the photovoltaic module. The anchor is a key component for providing and maintaining the prestress of the cable of the flexible support

[0003] At present, the prestress of the cable of the flexible support will be lost to a certain extent due to factors such as service life and temperature. The steel strand will inevitably vibrate, which is likely to cause the problem of loosening of the anchoring structure, not only affecting the stability of the installation structure of the photovoltaic module Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides an anti-loosening fixing device for an anchor of a flexible photovoltaic support to solve at least one of the above technical problems

[0005] The technical solution of the utility model is: an anti-loosening fixing device for an anchor of a flexible photovoltaic support, including an anchor structure for installing on a steel strand, characterized in that it further includes an auxiliary fixing structure arranged adjacent to the anchor structure

[0006] The auxiliary fixing structure includes at least two adjacent locking components. Each locking component includes a wedge-shaped clip, a locking sleeve, a ring and an anti-loosening sleeve. The anti-loosening sleeve is sleeved on the periphery of the steel strand, and the anti-loosening sleeve includes a threaded connection part, a pressing part and a limiting end part connected in sequence

[0007] The locking sleeve is threadedly connected to the threaded connection part

[0008] At least three circumferentially arranged mounting notches for installing the wedge-shaped clip are formed on the pressing part, and the mounting notches penetrate through the pressing part in the radial direction

[0009] The ring is sleeved on the periphery of the pressing part of the anti-loosening sleeve. The ring abuts against the limiting end part, and the ring is located radially outside a part of the wedge-shaped clip

[0010] The wedge-shaped clip includes a tapered part with an outer diameter increasing from the side adjacent to the ring to the side adjacent to the locking sleeve. The outer wall of the tapered part is used to abut against the inner wall of the ring, and the axial end face of the wedge-shaped clip away from the limiting end part abuts against the locking sleeve

[0011] The utility model realizes the extrusion of the steel strand at two positions by installing wedge-shaped clips in the anti-loosening sleeves of two locking components, improving the fixing effect on the steel strand

[0012] During the relative rotational movement of the locking sleeve and the anti-loosening sleeve, the locking sleeve abuts against the wedge-shaped clip, and the circular ring restricts the radial position of the wedge-shaped clip. Under the guidance of the tapered portion, the wedge-shaped clip radially squeezes the steel strand within the installation notch, forming a fixing device that can prevent the wedge-shaped clip anchor from loosening and falling off.

[0013] Further preferably, two locking assemblies are provided, and the two locking assemblies are arranged symmetrically in a mirror image;

[0014] The threaded connection portions of the anti-loosening sleeves of the two locking assemblies are arranged adjacent to each other.

[0015] Further preferably, the wedge-shaped clip includes an equal-diameter portion with an equal outer diameter, the equal-diameter portion is connected to the tapered portion, and the inner diameters of the equal-diameter portion and the tapered portion are equal.

[0016] Further preferably, the outer diameter of the equal-diameter portion is smaller than the inner diameter of the circular ring, and the outer diameter at the maximum outer diameter of the tapered portion is larger than the inner diameter of the circular ring.

[0017] Further preferably, the installation notch is a strip-shaped groove for guiding the axial sliding of the wedge-shaped clip.

[0018] After the circular ring is sleeved on the anti-loosening sleeve, it is convenient for the strip-shaped groove opening to insert the wedge-shaped clip and squeeze the wedge-shaped clip through the locking sleeve, thereby pushing the wedge-shaped clip to move axially and radially.

[0019] Further preferably, the anchor structure includes an anchor clip, an anchor clip sleeve, and an anchor backing plate;

[0020] The anchor clip is clamped between the anchor clip sleeve and the steel strand;

[0021] The two ends of the anchor clip sleeve in the axial direction respectively abut against the anchor backing plate and the limiting end of the anti-loosening sleeve.

[0022] Further preferably, the anchor clip sleeve is provided with a clamping groove for squeezing the anchor clip;

[0023] The clamping groove is a tapered groove with a gradually changing inner diameter, and the inner diameter of the tapered groove away from the anchor backing plate is smaller than the outer diameter of the limiting end.

[0024] Beneficial effects:

[0025] The utility model can realize the function of preventing loosening and falling off of the flexible photovoltaic anchor.

[0026] The displacement of the wedge grip of the anchoring structure is restricted by the auxiliary fixing structure, preventing the loosening of the anchoring structure. At the same time, the steel strand is clamped by the wedge grip to prevent the steel strand from falling off when the wedge grip in the anchoring structure fails. When the wedge grip fails, the steel strand instantaneously slides in the opposite direction of the anchor (towards the backing plate), causing the anchor to fall off. At this time, the auxiliary structure of the present utility model can resist the sliding of the steel strand, preventing the steel strand from failing under force and slipping, thus causing potential safety hazards to the photovoltaic module.

[0027] The present utility model is easy to install, can be disassembled repeatedly, and has safe and reliable performance. Description of the Drawings

[0028] Figure 1 It is a schematic exploded view of the first specific embodiment of the present utility model;

[0029] Figure 2 It is a cross-sectional view of the first specific embodiment of the present utility model;

[0030] Figure 3 It is an exploded view of the auxiliary fixing structure of the first specific embodiment of the present utility model.

[0031] The reference numerals are: 1 is the locking sleeve, 2 is the anti-loosening sleeve, 3 is the ring, 4 is the wedge grip, 5 is the wedge grip sleeve of the anchor, 6 is the anchor backing plate, 7 is the wedge grip of the anchor, 8 is the steel strand, 21 is the threaded connection part, 22 is the extrusion part, and 23 is the limiting end part. Detailed Description of the Embodiment

[0032] See Figures 1 to 3, Specific Embodiment 1, a flexible photovoltaic bracket anchor anti-loosening fixing device, which includes an anchor structure for installation on a steel strand 8, and also includes an auxiliary fixing structure arranged adjacent to the anchor structure; the auxiliary fixing structure includes at least two adjacent locking components, and each locking component includes a wedge-shaped clip 4, a locking sleeve 1, a ring 3, and an anti-loosening sleeve 2. The anti-loosening sleeve 2 is sleeved on the periphery of the steel strand 8, and the anti-loosening sleeve 2 includes a sequentially connected threaded connection portion 21, an extrusion portion 22, and a limiting end portion 23. The threaded connection portions 21 of two anti-loosening sleeves 2 are arranged adjacent to each other; the locking sleeve 1 is threadedly connected to the threaded connection portion 21 of the anti-loosening sleeve 2; at least three circumferentially arranged mounting notches for installing the wedge-shaped clip 4 are formed on the extrusion portion 22, and the mounting notches penetrate the extrusion portion 22 in the radial direction; the ring 3 is sleeved on the periphery of the extrusion portion 22 of the anti-loosening sleeve 2, the ring 3 abuts against the limiting end portion 23, and the ring 3 is located radially outside a part of the wedge-shaped clip 4; the wedge-shaped clip 4 includes a gradually changing portion with an outer diameter increasing from the side adjacent to the ring 3 to the side adjacent to the locking sleeve 1, and the outer wall of the gradually changing portion is used to abut against the inner wall of the ring 3. The axial end face of the wedge-shaped clip away from the limiting end portion 23 abuts against the locking sleeve 1. The present invention realizes the extrusion of the steel strand 8 at two positions by installing the wedge-shaped clip 4 in the anti-loosening sleeve 2 of two locking components, improving the fixing effect on the steel strand 8. During the relative rotational movement of the locking sleeve 1 and the anti-loosening sleeve 2, the locking sleeve 1 abuts against the wedge-shaped clip 4, and the ring 3 restricts the radial position of the wedge-shaped clip 4. Under the guidance of the gradually changing portion, the wedge-shaped clip 4 radially extrudes the steel strand 8 in the mounting notch, forming a fixing device that can prevent the clip anchor from loosening and falling off.

[0033] The ring is a metal ring.

[0034] There are two locking components, and the two locking components are arranged symmetrically in a mirror image. The threaded connection portions of the anti-loosening sleeves of the two locking components are arranged adjacent to each other.

[0035] The wedge-shaped clip 4 includes an equal-diameter portion with an equal outer diameter. The equal-diameter portion is connected to the gradually changing portion, and the inner diameters of the equal-diameter portion and the gradually changing portion are equal.

[0036] See Figure 2 , the outer diameter of the equal-diameter portion is smaller than the inner diameter of the ring 3, and the outer diameter at the maximum outer diameter of the gradually changing portion is larger than the inner diameter of the ring 3. The equal-diameter portion is located inside the ring. Or, see Figure 1 , the equal-diameter portion is located outside the ring. The outer diameter of the equal-diameter portion is larger than the outer diameter of the ring. The axial end of the equal-diameter portion abuts against the locking sleeve.

[0037] The mounting notch is a strip-shaped groove for guiding the axial sliding of the wedge-shaped clip 4. After the ring 3 is sleeved on the anti-loosening sleeve 2, the strip-shaped groove opening is inserted into the wedge-shaped clip 4, and the wedge-shaped clip 4 is extruded by the locking sleeve 1, thereby pushing the wedge-shaped clip 4 to move axially and radially.

[0038] The anchor structure includes anchor wedges 7, an anchor wedge sleeve 5, and an anchor backing plate 6; the anchor wedges 7 are clamped between the anchor wedge sleeve 5 and the steel strand 8; the two axial ends of the anchor wedge sleeve 5 are respectively abutted against the anchor backing plate 6 and the limiting end 23 of the anti-loosening sleeve 2.

[0039] The anchor wedge sleeve 5 is provided with a clamping groove for squeezing the anchor wedges 7; the clamping groove is a tapered groove with a gradually changing inner diameter, and the inner diameter of the tapered groove away from the anchor backing plate 6 is smaller than the outer diameter of the limiting end 23.

[0040] The two locking assemblies are respectively a first locking assembly adjacent to the anchor structure and a second locking assembly away from the anchor structure. The first locking assembly includes a first anti-loosening sleeve, a first ring, and a first locking sleeve. The second locking assembly includes a second anti-loosening sleeve, a second ring, and a second locking sleeve.

[0041] Usage method: The first anti-loosening sleeve, the first ring, the first locking sleeve, the second locking sleeve, the second ring, and the second anti-loosening sleeve are successively sleeved on the steel strand;

[0042] The limiting end of the first anti-loosening sleeve is abutted against the anchor wedges, a wedge clip is installed in the installation notch of the first waterproof sleeve, and the first locking sleeve is tightened. During the tightening process of the first locking sleeve, the wedge clip is squeezed, axially pushed, and at the same time, under the limitation of the first ring, the wedge clip radially squeezes the steel strand, and the installation of the first locking assembly is completed.

[0043] A wedge clip is installed in the installation notch of the second waterproof sleeve, and the second locking sleeve is tightened. During the tightening process of the second locking sleeve, the wedge clip is squeezed, axially pushed, and at the same time, under the limitation of the second ring, the wedge clip radially squeezes the steel strand, and the installation of the second locking assembly is completed.

[0044] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A flexible photovoltaic support anchor anti-loosening fixing device, comprising an anchor structure for installation on a steel strand, characterized in that: Also included is an auxiliary fixing structure disposed adjacent to the anchor structure; The auxiliary fixing structure includes at least two adjacently arranged locking assemblies, the locking assemblies include a wedge-shaped clip, a locking sleeve, a ring and an anti-loosening sleeve, the anti-loosening sleeve is sleeved on the periphery of the steel strand, and the anti-loosening sleeve includes a threaded connection part, an extrusion part and a limiting end part connected in sequence; The locking sleeve is threadedly connected to the threaded connection portion; The extrusion portion is provided with at least three circumferentially arranged mounting notches for mounting the wedge-shaped clips, and the mounting notches radially penetrate the extrusion portion; The circular ring is sleeved on the periphery of the extrusion portion of the anti-loosening sleeve, the circular ring abuts against the limiting end, and the circular ring is located radially outside a part of the wedge-shaped clip; The wedge-shaped clip includes a gradual portion whose outer diameter increases from the side adjacent to the circular ring to the side adjacent to the locking sleeve. The outer wall of the gradual portion is used to abut against the inner wall of the circular ring. The axial end face of the wedge-shaped clip away from the limiting end abuts against the locking sleeve.

2. A flexible photovoltaic bracket anchor anti-loosening fixing device according to claim 1, characterized in that: The locking components are provided with two, and the two locking components are arranged in mirror symmetry; The threaded connection parts of the anti-loosening sleeves of the two locking assemblies are arranged adjacent to each other.

3. According to claim 1, a flexible photovoltaic bracket anchor anti-loosening fixing device is characterized by: The wedge-shaped clip comprises an equal diameter portion with a uniform outer diameter, the equal diameter portion is connected to the gradual change portion, and the inner diameters of the equal diameter portion and the gradual change portion are uniform.

4. A flexible photovoltaic bracket anchor anti-loosening fixing device according to claim 3, characterized in that: The outer diameter of the equal diameter portion is smaller than the inner diameter of the circular ring, and the outer diameter of the gradient portion at the maximum outer diameter is larger than the inner diameter of the circular ring.

5. The flexible photovoltaic bracket anchor anti-loosening fixing device according to claim 1, characterized in that: The mounting notch is a strip-shaped groove for guiding the wedge-shaped clip to slide axially.

6. The flexible photovoltaic bracket anchor anti-loosening fixing device according to claim 1, characterized in that: The anchor structure comprises an anchor clip, an anchor clip sleeve and an anchor pad; The anchor clip is disposed between the anchor clip sleeve and the steel strand; The two ends of the anchor clip sleeve in the axial direction respectively abut against the anchor pad and the limiting end portions of the anti-loosening sleeve.

7. A flexible photovoltaic support anchor anti-loosening fixing device according to claim 6, characterized in that: The anchor clip sleeve is provided with a clamping groove for squeezing the anchor clip; The clamping groove is a tapered groove with a gradually changing inner diameter, and the inner diameter of the tapered groove away from the anchor pad is smaller than the outer diameter of the limiting end.

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