Insulator double-ball-head connection structure with rectangular cross section
By introducing a locking mechanism and a protective mechanism into the double ball head connection structure of the insulator, the problem of easy loosening of the ball head hook and the ball socket is solved, achieving stable connection and protection, and improving the safety and reliability of the power system.
Patent Information
- Application Number
- CN202511293262.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2025-12-16
AI Technical Summary
The existing double ball joint connection structure of insulators is prone to loosening and displacement during long-term use, which can lead to disengagement and pose safety hazards, especially in complex environments.
The locking mechanism includes a slide, a rod, a spring, a brake ring, and a protective mechanism. The ball head hook and the ball socket are stably locked by the spring's restoring force in the slide and the rotation of the brake ring. A protective cover is also provided to prevent corrosion and interference from foreign objects.
It improves the connection stability between the ball head hook and the ball socket, prevents loosening and displacement, extends service life, and prevents corrosion and foreign objects from affecting the connection.
Smart Images
Figure CN121148827A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of connecting structures, in particular to a double-ball-head connecting structure of an insulator with a rectangular cross section. BACKGROUND
[0002] In a power transmission system, insulators play a crucial role in supporting and fixing live conductors and insulating them from the ground or other conductors. Among them, the double-ball-head connecting structure of an insulator with a rectangular cross section is widely used in some specific power transmission scenarios due to its unique mechanical properties and installation convenience. This connecting structure realizes the connection between insulators or between insulators and other fittings through the cooperation of ball heads and ball sockets, allowing a certain degree of relative rotation to adapt to the displacement and stress changes of the power transmission line under different working conditions.
[0003] The existing double-ball-head connecting structure of an insulator lacks a self-locking structure in the ball head and ball socket connection part, which is more prone to looseness and displacement under the influence of factors such as strong wind, vibration, temperature changes, etc. during the long-term operation of the power transmission line. For example, the W-shaped locking pin of the insulator connecting side bowl head hanging plate is prone to exit the locking position due to extrusion deformation after long-term operation, which poses a risk of disconnection between the insulator and the bowl head hanging plate, posing a great safety risk to the entire power system. Therefore, we propose a double-ball-head connecting structure of an insulator with a rectangular cross section. SUMMARY
[0004] The purpose of the present application is to provide a double-ball-head connecting structure of an insulator with a rectangular cross section to solve the problems raised in the background.
[0005] The purpose of the present application can be achieved through the following technical solutions: A double-ball-head connecting structure of an insulator with a rectangular cross section, comprising a connecting column, a plurality of groups of disc-shaped insulating pieces are sleeved on the connecting column, a ball socket is arranged at the upper and lower ends of the connecting column, a ball head hook is arranged on the ball socket, and a locking mechanism is arranged between the ball socket and the ball head hook, The locking mechanism comprises a sliding groove opened in the ball socket, a first spring is fixedly connected to the inner wall of the sliding groove, a plug rod is slidably connected in the sliding groove, the bottom of the plug rod is fixedly connected to one end of the first spring, a plug slot is opened in the corresponding ball head hook at the top of the plug rod, a first guide slot is opened on the front end surface of the sliding groove, a rotating slot is opened in the plug rod, a brake ring is rotatably connected in the rotating slot, two groups of inverted L-shaped limiting grooves are opened in the sliding groove on the right side of the brake ring, the brake ring is rotatably connected with the limiting grooves, and a protection mechanism is arranged on the back surface of the sliding groove.
[0006] Preferably, the inner wall of the ball socket above the inserting rod is provided with a plurality of groups of auxiliary grooves, and the sizes of the plurality of groups of auxiliary grooves are arranged in turn from large to small, so that the auxiliary grooves are suitable for connecting with ball hooks of different sizes.
[0007] Preferably, the first spring is arranged at a middle position on the inner wall of the sliding groove, and one end of the first spring is fixedly connected with the inner wall of the sliding groove by welding.
[0008] Preferably, the partial brake ring can also be designed in a cylindrical shape, and the outer wall of the brake ring is matched with the inner wall of the first guide groove and the limiting groove.
[0009] Preferably, the protection mechanism comprises a second guide groove provided on the rear end surface of the sliding groove, a first rack fixedly connected with the inserting rod in the second guide groove, a movable bin fixedly connected with the outer wall of the sliding groove on the two sides of the first rack, a gear rotatably connected in the movable bin, a second rack vertically and slidably connected in the movable bin, the second rack and the first rack are engaged with the gear, a fixed frame fixedly connected with the top of the second rack, a guide rod fixedly connected in the fixed frame, two groups of sliding blocks slidably connected with the guide rod, a second spring wound on the guide rod between the sliding blocks and the fixed frame, and a protective cover fixedly connected with the front end surface of the sliding block.
[0010] Preferably, the surfaces in contact with each other of the protective cover are bonded with sealing rings, and the protective cover is designed in a transparent shape.
[0011] Preferably, the sliding block is designed in a T shape, and a through hole matched with the sliding block is provided in the fixed frame.
[0012] The beneficial effects of the present application are as follows: 1. The ball hook with a size matched with the auxiliary groove is slid into the auxiliary groove, then the brake ring is rotated on the inserting rod, the brake ring is slid out of one group of limiting grooves and rotated into the first guide groove, at this time, the restoring force of the first spring pushes the inserting rod to reset and slide in the sliding groove, and the inserting rod slides into the inserting groove, when the brake ring slides to align with another group of limiting grooves, the brake ring is rotated on the inserting rod again, and the brake ring is rotated into another group of limiting grooves, at this time, the restoring force of the first spring pushes the brake ring to abut against the limiting groove, and the brake ring synchronously drives the inserting rod to abut against the inserting groove, so as to achieve the purpose of locking the ball hook and the ball socket, thereby improving the stability of the connection between the ball socket and the ball hook, preventing the ball hook from loosening and displacement in the ball socket, and preventing the insulator and the bowl hook plate from being disconnected.
[0013] 2. The application drives the first rack to move synchronously by inserting the rod to slide in the sliding groove, and makes the first rack drive the gear to rotate in the movable bin, and drives the second rack to slide in the movable bin synchronously through the gear, so that the rod is inserted into the slot, and the protective cover is driven to descend by the gear and the movable bin at the same time, and the protective cover protects the connecting part of the ball socket and the ball hook, prevents liquid or strong corrosive bird droppings from interfering with the ball hook and the ball socket, and further causes the service life of the ball hook and the ball socket to be shortened, when the rod slides out of the slot, the protective cover is driven to slide out of the ball hook by the gear and the movable bin at the same time, so as to disconnect the ball hook and the ball socket. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings. Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the back view structure of the present application; Figure 3 is a schematic diagram of the partial three-dimensional sectional structure of the present application; Figure 4 is a schematic diagram of the split structure of the locking mechanism of the present application; Figure 5 is a schematic diagram of the part structure of the protective mechanism of the present application; Figure 6 is a schematic diagram of the partial part structure of the protective mechanism of the present application.
[0015] The reference signs in the drawings are as follows: 1, connecting column; 2, insulating sheet; 3, ball socket; 4, ball hook; 5, locking mechanism; 51, sliding groove; 52, first spring; 53, insertion rod; 54, slot; 55, first guide groove; 56, stop ring; 57, limiting groove; 58, auxiliary groove; 6, protective mechanism; 61, second guide groove; 62, first rack; 63, movable bin; 64, gear; 65, second rack; 66, fixed frame; 67, guide rod; 68, sliding block; 69, second spring; 610, protective cover. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application, and obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0017] As shown in Figures 1-6 The double-ball head connecting structure of the cross-section rectangular insulator comprises a connecting column 1, a plurality of groups of disc-shaped insulating pieces 2 are sleeved on the connecting column 1, a ball socket 3 is arranged at the upper and lower ends of the connecting column 1, a ball head hook 4 is arranged on the ball socket 3, a locking mechanism 5 is arranged between the ball socket 3 and the ball head hook 4, the locking mechanism 5 comprises a sliding groove 51 which is arranged in the ball socket 3, a first spring 52 which is fixedly connected to the inner wall of the sliding groove 51, a plug rod 53 which is slidably connected in the sliding groove 51, the first spring 52 is arranged at the middle position of the inner wall of the sliding groove 51, one end of the first spring 52 is fixedly connected to the inner wall of the sliding groove 51 by welding, the first spring 52 can uniformly transmit the restoring force generated by the plug rod 53 to the plug rod 53, so that the plug rod 53 stably resets and slides in the sliding groove 51, the bottom of the plug rod 53 is attached to one end of the first spring 52, a plug groove 54 is arranged on the ball head hook 4 corresponding to the top of the plug rod 53, a first guide groove 55 is arranged on the front end surface of the sliding groove 51, a rotating groove is arranged on the plug rod 53, a brake ring 56 is rotatably connected in the rotating groove, two groups of reverse L-shaped limiting grooves 57 are arranged in the sliding groove 51 on the right side of the brake ring 56, the brake ring 56 is rotatably connected with the limiting grooves 57, a protection mechanism 6 is arranged on the back of the sliding groove 51, a plurality of groups of auxiliary grooves 58 are arranged on the inner wall of the ball socket 3 above the plug rod 53, the sizes of the plurality of groups of auxiliary grooves 58 are arranged in order from large to small, so that the auxiliary grooves 58 are suitable for connecting ball head hooks 4 of different sizes, the auxiliary grooves 58 can be suitable for positioning and assembling ball head hooks 4 of different sizes, thereby improving the adaptability of the ball head hook 4 and the ball socket 3 when they are connected.
[0018] In the specific implementation, the ball head hook 4 with a size suitable for the auxiliary groove 58 is slid into the auxiliary groove 58, then the brake ring 56 is rotated on the plug rod 53, the brake ring 56 is slid out of one group of limiting grooves 57 and rotated into the first guide groove 55, at this time the restoring force of the first spring 52 pushes the plug rod 53 to reset and slide in the sliding groove 51, and the plug rod 53 slides into the plug groove 54, when the brake ring 56 slides to align with another group of limiting grooves 57, the brake ring 56 is rotated on the plug rod 53 again, and the brake ring 56 is rotated into another group of limiting grooves 57, at this time the restoring force of the first spring 52 pushes the brake ring 56 to abut against the limiting grooves 57, the brake ring 56 synchronously drives the plug rod 53 to abut against the plug groove 54, thereby achieving the purpose of locking the ball head hook 4 and the ball socket 3, and thereby improving the stability of the connection between the ball socket 3 and the ball head hook 4, preventing the ball head hook 4 from easily loosening and displacing in the ball socket 3, and thereby preventing the insulator and the ball head hanging plate from being disconnected.
[0019] As a technical optimization scheme of the present application, part of the brake ring 56 can also be designed in a cylindrical shape, and the outer wall of the brake ring 56 is attached to the inner walls of the first guide groove 55 and the limiting groove 57.
[0020] In specific implementation, the staff can operate the brake ring 56 conveniently, and the staff cannot drop the brake ring 56 when operating the brake ring 56 by hands, and the brake ring 56 cannot be loosened when sliding or rotating in the limiting groove 57 and the first guide groove 55.
[0021] As a technical optimization scheme of the present application, the protection mechanism 6 comprises a second guide groove 61 formed on the rear end surface of the sliding groove 51, a first rack 62 fixedly connected to the insertion rod 53 in the second guide groove 61, an activity bin 63 fixedly connected to the outer wall of the sliding groove 51 on both sides of the first rack 62, a gear 64 rotatably connected in the activity bin 63, a second rack 65 vertically slidably connected in the activity bin 63, the second rack 65 and the first rack 62 both being engaged with the gear 64, a fixed frame 66 fixedly connected to the top of the second rack 65, a guide rod 67 fixedly connected in the fixed frame 66, two groups of sliding blocks 68 slidably connected to the guide rod 67, the second spring 69 being wound on the guide rod 67 between the sliding block 68 and the fixed frame 66, the protection cover 610 being fixedly connected to the front end surface of the sliding block 68, and the faces of the protection cover 610 being in contact with each other being bonded with sealing rings. The protection cover 610 is designed to be transparent, so that the staff can observe the ball head hook 4 and the ball socket 3 through the protection cover 610, and the sealing property of the connection of the protection cover 610 is improved, thereby reducing the possibility that foreign matters enter the ball head hook 4 from the protection cover 610 and affect the connection between the ball head hook 4 and the ball socket 3.
[0022] In specific implementation, the first rack 62 is moved synchronously by the sliding of the insertion rod 53 in the sliding groove 51, the gear 64 is rotated in the activity bin 63 by the first rack 62, the second rack 65 is slid in the activity bin 63 by the gear 64, the insertion rod 53 is slid into the insertion groove 54, the protection cover 610 is lowered by the gear 64 and the activity bin 63, and the protection cover 610 protects the connection between the ball socket 3 and the ball head hook 4, so as to prevent liquid or strongly corrosive bird droppings from interfering with the ball head hook 4 and the ball socket 3, thereby reducing the service life of the ball head hook 4 and the ball socket 3. When the insertion rod 53 slides out of the insertion groove 54, the protection cover 610 is slid out of the ball head hook 4 synchronously by the gear 64 and the activity bin 63, the two groups of protection covers 610 are extruded by the ball head hook 4, the protection cover 610 drives the sliding block 68 to slide on the guide rod 67, the second spring 69 is extruded at the same time, and the ball head hook 4 is slid out of the protection cover 610, so as to disconnect the ball head hook 4 and the ball socket 3.
[0023] It is worth noting that the slider 68 is designed in T shape, the fixing frame 66 is provided with a through hole matched with the slider 68, the fixing frame 66 and the slider 68 can be fully matched in multiple surfaces, and the stability of the slider 68 sliding in the fixing frame 66 is improved, and the second spring 69 is prevented from being stuck when pushing the slider 68 to slide in the fixing frame 66.
[0024] In use, the ball hook 4 matched with the auxiliary groove 58 in size is first slid into the auxiliary groove 58, then the brake ring 56 is rotated on the inserting rod 53, the brake ring 56 is slid out of the limiting groove 57 and rotated into the first guide groove 55, the restoring force of the first spring 52 pushes the inserting rod 53 to slide and reset in the sliding groove 51, and the inserting rod 53 slides into the inserting groove 54, when the brake ring 56 is aligned with the other limiting groove 57, the brake ring 56 is rotated on the inserting rod 53 again, and the brake ring 56 is rotated into the other limiting groove 57, the restoring force of the first spring 52 pushes the brake ring 56 to abut against the limiting groove 57, the brake ring 56 synchronously drives the inserting rod 53 to abut against the inserting groove 54, so that the ball hook 4 and the ball socket 3 are locked, and the stability of the connection between the ball socket 3 and the ball hook 4 is improved, and the ball hook 4 is prevented from loosening.
[0025] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A rectangular cross-section insulator double-ball head connection structure, comprising a connecting post (1), characterized in that, Several sets of disc-shaped insulating sheets (2) are sleeved on the connecting post (1). Ball sockets (3) are provided at the upper and lower ends of the connecting post (1). Ball head hooks (4) are provided on the ball sockets (3). A locking mechanism (5) is provided between the ball sockets (3) and the ball head hooks (4). The locking mechanism (5) includes a groove (51) opened in the ball socket (3), a first spring (52) is fixedly connected to the inner wall of the groove (51), a plug rod (53) is slidably connected in the groove (51), the bottom of the plug rod (53) is fixedly connected to one end of the first spring (52), a slot (54) is opened on the ball head hook (4) corresponding to the top of the plug rod (53), a first guide groove (55) is opened on the front surface of the groove (51), a rotating groove is opened on the plug rod (53), a brake ring (56) is rotatably connected in the rotating groove, two sets of inverted L-shaped limiting grooves (57) are opened in the groove (51) on the right side of the brake ring (56), the brake ring (56) is rotatably connected to the limiting groove (57), and a protective mechanism (6) is provided on the back of the groove (51).
2. The rectangular cross-section insulator double-ball head connection structure according to claim 1, characterized in that, The inner wall of the ball socket (3) above the insertion rod (53) is provided with several sets of auxiliary grooves (58). The sizes of the several sets of auxiliary grooves (58) are arranged from large to small, so that the auxiliary grooves (58) are suitable for connecting ball head hooks (4) of different sizes.
3. The rectangular cross-section insulator double-ball head connection structure according to claim 1, characterized in that, The first spring (52) is located at the middle position on the inner wall of the slide groove (51), and one end of the first spring (52) is fixedly connected to the inner wall of the slide groove (51) by welding.
4. The rectangular cross-section insulator double-ball head connection structure according to claim 1, characterized in that, The brake ring (56) can also be configured as a cylindrical design, and the outer wall of the brake ring (56) is in contact with the inner wall of the first guide groove (55) and the limiting groove (57).
5. The rectangular cross-section insulator double-ball head connection structure according to claim 1, characterized in that, The protective mechanism (6) includes a second guide groove (61) opened on the rear end surface of the slide groove (51). A first rack (62) is fixedly connected to the insert rod (53) in the second guide groove (61). Movable chambers (63) are fixedly connected to the outer walls of the slide groove (51) on both sides of the first rack (62). A gear (64) is rotatably connected in the movable chamber (63). A second rack (65) is vertically slidably connected in the movable chamber (63). The second rack (65) and the first rack (62) are both meshed with the gear (64). A fixed frame (66) is fixedly connected to the top of the second rack (65). A guide rod (67) is fixedly connected in the fixed frame (66). Two sets of sliders (68) are slidably connected on the guide rod (67). A second spring (69) is wound on the guide rod (67) between the slider (68) and the fixed frame (66). A protective cover (610) is fixedly connected to the front end surface of the slider (68).
6. The rectangular cross-section insulator double-ball head connection structure according to claim 5, characterized in that, All surfaces of the protective cover (610) in contact with each other are bonded with sealing rings, and the protective cover (610) is designed to be transparent.
7. The rectangular cross-section insulator double-ball head connection structure according to claim 5, characterized in that, The slider (68) is T-shaped, and the fixing frame (66) has a through hole that matches the slider (68).