Stable connection structure for wire harness of wind power equipment

Abstract

The utility model discloses a stable connection structure for a wire harness of wind power equipment, which comprises a plurality of fixed bushings and a locking part, and the fixed bushings are sleeved on the wire harness at intervals along the length direction of the wire harness. The locking parts and the fixing bushings are arranged in a one-to-one correspondence mode, each locking part comprises cable glands symmetrically arranged at the two ends of the corresponding fixing bushings, each cable gland comprises a connecting main body, one end of each connecting main body is embedded in the corresponding fixing bushing in a threaded mode, and the other end of each connecting main body can tightly press the wire harness under the action of the corresponding locking head. According to the utility model, the wire harness can be fixed conveniently, and the wire harness can be effectively prevented from rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness processing, in particular to a stable connection structure for wire harnesses of wind power equipment. Background Art

[0002] Wind power equipment is used to generate electricity by converting the kinetic energy of wind into electrical energy, such as windmills. Most wind power equipment is built outdoors and requires connecting a large number of wire harnesses (such as high-voltage transmission lines). At present, the wire harnesses for wind power equipment are generally long, and are extremely prone to rotation during use and are not convenient to fix. Therefore, it is necessary to study a stable connection structure for wire harnesses of wind power equipment. Content of the Utility Model

[0003] In order to overcome the above disadvantages, the purpose of the utility model is to provide a stable connection structure for wire harnesses of wind power equipment, which is beneficial to fixing the wire harnesses and can effectively avoid the rotation of the wire harnesses.

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is: a stable connection structure for wire harnesses of wind power equipment, comprising

[0005] Fixing bushings, multiple of which are provided and are sleeved on the wire harness at intervals along the length direction of the wire harness;

[0006] Locking parts, which are arranged corresponding to the fixing bushings one by one, and each of which includes gland heads symmetrically arranged at both ends of the corresponding fixing bushing. Each gland head includes a connecting body, one end of the connecting body is threadedly installed in the fixing bushing, and the other end can press the wire harness under the action of a locking head.

[0007] The beneficial effect of the stable connection structure of the utility model lies in:

[0008] The fixing bushings are fixed to any position of the wire harness through the locking parts, and the wire harness at this position is fixed by using the limit of the fixing bushing to the wire harness and the stability of the fixing bushing, so as to avoid the rotation phenomenon of the wire harness at this position; then, the wire harness is segmented and fixed through multiple fixing bushings arranged at intervals, so as to avoid the problems of easy torsion or difficult fixing caused by the too long length of the wire harness; in the locking part, the two gland heads can fix the two ends of the fixing bushing to the wire harness respectively, further improving the stability of the connection between the fixing bushing and the wire harness, so as to improve the anti-rotation performance of the fixing bushing to the wire harness.

[0009] Furthermore, a main body cavity for the wire harness to pass through is provided in the connecting body, and a clamping ring extending out of the main body cavity is provided at one end of the connecting body facing the locking head, and the clamping ring can shrink inwards along its radial direction under the action of the locking head. The radial limit of the connecting body to the wire harness is realized through the setting of the clamping ring.

[0010] Furthermore, the clamping ring includes an inner clamping ring and an outer clamping ring which are sleeved inside and outside each other. One ends of the inner clamping ring and the outer clamping ring away from the locking head are fixedly connected to the connecting body, and one end of the outer clamping ring facing the locking head protrudes from the inner clamping ring.

[0011] Since the locking head is locked to the connecting body in a spiral manner, in actual application, due to the relatively large distance between the clamping ring and the wire harness in the initial state, during the spiral locking process, the clamping ring is extremely likely to twist between the relatively large distance between the clamping ring and the wire harness. Therefore, the cooperation of the inner clamping ring and the outer clamping ring can reduce the distance between the inner clamping ring and the wire harness and between the inner clamping ring and the outer clamping ring to a certain extent, thereby suppressing the twisting phenomenon of the inner clamping ring and the outer clamping ring caused by spiral locking.

[0012] Furthermore, both the inner clamping ring and the outer clamping ring include fixed ring pieces fixedly connected to the connecting body. A plurality of elastic arms distributed in a circumferential array are integrally arranged at one ends of the fixed ring pieces facing the locking head, and a distance is left between any two adjacent elastic arms. The arrangement of the elastic arms provides the possibility for the radial contraction of the inner clamping ring and the outer clamping ring.

[0013] Furthermore, a rubber gasket capable of being sleeved on the wire harness is further provided inside the inner clamping ring, and the outer diameter of the rubber gasket is adapted to the inner diameter of the inner clamping ring. The arrangement of the rubber gasket further improves the limiting effect on the wire harness.

[0014] Furthermore, the locking head includes a locking nut. An internal thread structure capable of being threadedly connected to the connecting body is provided on the inner wall of one end of the locking nut facing the connecting body, and a frustum-shaped inclined surface capable of pressing the clamping ring is provided on the inner wall of the other end. Through the arrangement of the frustum-shaped inclined surface, the clamping ring can be forced while the locking nut is locked on the connecting body, so that the clamping ring contracts inward.

[0015] Furthermore, the diameter of the small circular surface of the frustum-shaped inclined surface is not greater than the diameter of the wire harness.

[0016] Furthermore, a first external thread structure capable of being threadedly connected to the fixed bushing is provided at one end of the connecting body facing the fixed bushing, and a second external thread structure capable of being threadedly connected to the locking head is provided at the other end; A stop ring capable of abutting against the fixed bushing is threadedly connected to the first external thread structure. The arrangement of the stop ring is used to limit the locking position of the connecting body and the fixed bushing.

[0017] Furthermore, a rubber gasket is provided between the stop ring and the connecting body to enhance the connection stability between the connecting body and the fixed bushing. Description of the Drawings

[0018] Figure 1 Schematic diagram of the stable connection structure according to an embodiment of the present utility model;

[0019] Figure 2 Cross-sectional view of the stable connection structure according to an embodiment of the present utility model;

[0020] Figure 3 Schematic diagram of the connection main body according to an embodiment of the present utility model.

[0021] In the figure:

[0022] 1 - Fixed bushing; 2 - Wiring harness; 3 - Cable gland; 31 - Connection main body; 311 - Second external thread structure; 32 - Locking head; 321 - Frustum-shaped inclined surface; 4 - Clamping ring; 41 - Inner clamping ring; 42 - Outer clamping ring; 5 - Stop ring; 6 - Rubber gasket. Specific embodiments

[0023] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0024] Embodiment

[0025] Referring to the attached Figures 1-3 As shown, a stable connection structure for a wiring harness of a wind power equipment according to the present utility model includes a fixed bushing 1 and a locking portion. Among them, a plurality of fixed bushings 1 are provided and are sleeved on the wiring harness 2 at intervals along the length direction of the wiring harness 2. The locking portion is provided corresponding to each fixed bushing 1, and includes cable glands 3 symmetrically arranged at both ends of the corresponding fixed bushing 1. Each cable gland 3 includes a connection main body 31. One end of the connection main body 31 is threadedly installed in the fixed bushing 1, and the other end can press the wiring harness 2 under the action of the locking head 32.

[0026] During use, the fixed bushing 1 is fixed to any position of the wiring harness 2 through the locking portion. The wiring harness 2 at this position is fixed by using the limit of the fixed bushing 1 to the wiring harness 2 and the stability of the fixed bushing 1, so as to avoid the rotation phenomenon of the wiring harness 2 at this position; then, the wiring harness 2 can be segmented and fixed through a plurality of fixed bushings 1 arranged at intervals, so as to avoid the problems of easy torsion or difficult fixation caused by the too long length of the wiring harness; in the locking portion, the two cable glands 3 can fix both ends of the fixed bushing 1 to the wiring harness 2 respectively, further improving the stability of the connection between the fixed bushing 1 and the wiring harness 2, so as to improve the anti-rotation performance of the fixed bushing 1 to the wiring harness 2.

[0027] Specifically, in some embodiments, referring to the attached Figure 2As shown in the figure, a main body cavity for the wire harness 2 to pass through is provided inside the connecting main body 31. One end of the connecting main body 31 facing the fixed bushing 1 is provided with a first external thread structure that can be threadedly connected to the fixed bushing 1, and the other end is provided with a second external thread structure 311 that can be threadedly connected to the locking head 32. And one end of the connecting main body 31 facing the locking head 32 is provided with a clamping ring 4 extending out of the main body cavity. The clamping ring 4 can contract inward along its radial direction under the action of the locking head 32. That is, both ends of the connecting main body 31 are fixedly connected to the fixed bushing 1 and the locking head 32 through thread structures respectively. And when the locking head 32 is threadedly connected to the connecting main body 31, the locking head 32 can drive the clamping ring 4 to radially contract to realize the radial extrusion of the wire harness 2 and ensure the fixation of the wire harness 2.

[0028] Since the locking head 32 is locked to the connecting main body 31 in a spiral manner, in actual application, due to the large distance between the clamping ring 4 and the wire harness 2 in the initial state, during the spiral locking process, the clamping ring 4 is extremely likely to twist between the large distance between the clamping ring 4 and the wire harness 2. Therefore, in some embodiments, see the attached Figures 2-3 As shown in the figure, the clamping ring 4 includes an inner clamping ring 41 and an outer clamping ring 42 that are sleeved inside and outside. One ends of the inner clamping ring 41 and the outer clamping ring 42 away from the locking head 32 are fixedly connected to the connecting main body 31, and one end of the outer clamping ring 42 facing the locking head 32 protrudes from the inner clamping ring 41. Through the cooperation of the inner clamping ring 41 and the outer clamping ring 42, the distances between the inner clamping ring 41 and the wire harness 2 and between the inner clamping ring 41 and the outer clamping ring 42 can be reduced to a certain extent, thereby suppressing the twisting phenomenon of the inner clamping ring 41 and the outer clamping ring 42 caused by spiral locking.

[0029] Specifically, both the inner clamping ring 41 and the outer clamping ring 42 include fixed ring pieces fixedly connected to the connecting main body 31. One ends of the fixed ring pieces facing the locking head 32 are integrally provided with a plurality of elastic arms distributed in a circumferential array, and there is a distance between any two adjacent elastic arms. The setting of the elastic arms provides the possibility for the radial contraction of the inner clamping ring 41 and the outer clamping ring 42.

[0030] Furthermore, a rubber gasket that can be sleeved on the wire harness 2 is also provided inside the inner clamping ring 41. The outer diameter of the rubber gasket is adapted to the inner diameter of the inner clamping ring 41. Through the setting of the rubber gasket, the limiting effect on the wire harness 2 is further improved.

[0031] In some embodiments, a stop ring 5 that can abut against the fixed bushing 1 is threadedly connected to the first external thread structure. Through the setting of the stop ring 5, the locking position between the connecting main body 31 and the fixed bushing 1 is limited. Furthermore, a rubber gasket 6 is provided between the stop ring 5 and the connecting main body 31 to enhance the connection stability between the connecting main body 31 and the fixed bushing 1.

[0032] In some embodiments, the locking head 32 includes a locking nut. An internal thread structure capable of being threadedly connected to the connecting body 31 is provided on the inner wall of one end of the locking nut facing the connecting body 31, and a frustum-shaped inclined surface 321 capable of pressing the clamping ring 4 is provided on the inner wall of the other end. Through the setting of the frustum-shaped inclined surface 321, the clamping ring 4 can be forced while the locking nut is locked onto the connecting body 31, so that the clamping ring 4 contracts inward. Further, the diameter of the small circular surface of the frustum-shaped inclined surface 321 is not greater than the diameter of the wire harness 2.

[0033] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A stable connection structure for a wire harness of a wind power equipment, characterized in that: include A plurality of fixed bushings are provided and are sleeved on the wire harness at intervals along the length direction of the wire harness; The locking portion is arranged in one-to-one correspondence with the fixed bushing, and includes cable glands symmetrically arranged at both ends of the corresponding fixed bushing. Each of the cable glands includes a connecting body, one end of the connecting body is threadedly embedded in the fixed bushing, and the other end can compress the wiring harness under the action of the locking head.

2. The stable connection structure according to claim 1, characterized in that: The connecting body is provided with a main body cavity for the wiring harness to pass through, and one end of the connecting body facing the locking head is provided with a clamping ring extending out of the main body cavity, and the clamping ring can be contracted inwardly along its radial direction under the action of the locking head.

3. The stable connection structure according to claim 2, characterized in that: The clamping ring comprises an inner clamping ring and an outer clamping ring which are nested inside and outside. One end of the inner clamping ring and the outer clamping ring away from the locking head are fixed to the connecting body, and one end of the outer clamping ring protrudes from the inner clamping ring toward the locking head.

4. The stable connection structure according to claim 3, characterized in that: The inner clamping ring and the outer clamping ring both include a fixed ring piece fixedly connected to the connecting body, and a plurality of elastic arms distributed in a circular array are integrally provided at one end of the fixed ring piece facing the locking head, and a spacing is left between any two adjacent elastic arms.

5. The stable connection structure according to claim 4, characterized in that: A rubber gasket which can be sleeved on the wire harness is also arranged inside the inner clamping ring, and the outer diameter of the rubber gasket is matched with the inner diameter of the inner clamping ring.

6. The stable connection structure according to claim 2, characterized in that: The locking head comprises a locking nut, an inner wall of one end of the locking nut facing the connecting body is provided with an internal thread structure which can be threadedly connected with the connecting body, and an inner wall of the other end is provided with a truncated cone-shaped inclined surface which can squeeze the clamping ring.

7. The stable connection structure according to claim 6, characterized in that: The diameter of the small circular surface of the truncated cone-shaped inclined surface is not greater than the diameter of the wire harness.

8. The stable connection structure according to claim 1, characterized in that: The connecting body has one end facing the fixed bushing and is provided with a first external thread structure that can be threadedly connected to the fixed bushing, and the other end is provided with a second external thread structure that can be threadedly connected to the locking head; a stop ring that can abut against the fixed bushing is threadedly connected to the first external thread structure.

9. The stable connection structure according to claim 8, characterized in that: A rubber gasket is provided between the stop ring and the connecting body.

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