Insulator bowl head clamp

By incorporating the self-locking design of the positioning, limiting, and fastening components, the problem of loosening and falling off the insulator cup head clamps has been solved, achieving stable fixation and improved durability of the insulator cup head.

CN117393252BActive Publication Date: 2026-11-06JIANGSU TIANNAN ELECTRIC POWER EQUIP
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Patent Information

Application Number
CN202311542229.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-20
Publication Date
2026-11-06
Estimated Expiration
2043-11-20

AI Technical Summary

Technical Problem

Existing insulator cup head clamps are prone to loosening and falling off due to asymmetrical wind pressure during use, affecting the stability of the insulator fixation.

Method used

It adopts a combination design of positioning components, limiting components and fastening components, and prevents the fastening components from loosening through a self-locking function. This includes the coordinated use of a first arc-shaped clamping plate, a second arc-shaped clamping plate, screws, nuts, a self-locking part and rubber pads.

Benefits of technology

This improves the stability of the insulator cup head's covering, prevents loosening and falling off, and enhances the stability and durability of the insulator fixed on the support.

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Abstract

This invention discloses an insulator head clamp, belonging to the field of insulator clamp equipment. The insulator head clamp includes: a positioning component for initial engagement of the insulator head; a limiting component positioned directly above the positioning component and symmetrically distributed with it, the limiting component cooperating with the positioning component to cover the insulator head; and two fastening components, each located at one end of the positioning component, connecting the positioning and limiting components and providing self-locking. The positioning component includes a first arc-shaped clamp. This invention, through the self-locking function of the two fastening components, prevents them from loosening or falling off, thereby improving the stability of the positioning and limiting components' coverage of the insulator head.
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Description

Technical Field

[0001] This invention relates to the field of insulator clamping equipment, and more specifically, to an insulator cup head clamp. Background Technology

[0002] An insulator cup head clamp is a device used to fix and protect insulators. The insulator cup head is part of the insulator, usually a circular or spherical structure used to support and fix the insulator. The clamp is a ring-shaped metal device on the insulator cup head, used to apply pressure to the cup head, making it tightly bonded to the insulator, improving the stability and pressure resistance of the insulator. Insulator cup head clamps are generally made of high-strength metal materials, such as steel or aluminum alloy. They are carefully designed and processed, with high toughness and corrosion resistance, and can be used in various harsh environments. The installation of insulator cup head clamps usually requires professional technology and tools to ensure their correct installation and tightening. Insulator cup head clamps play an important role in power transmission and distribution systems. By fixing the insulator cup head and the insulator to the bracket, they can effectively resist external impacts and vibrations, maintain the normal working condition of the insulator, and prevent power equipment failures and damage. In addition, insulator cup head clamps can also provide additional protection for the insulator, preventing it from being damaged by harsh weather conditions and other external forces.

[0003] However, when existing insulator cup head clamps are in use, the insulator strings are often subjected to wind pressure on one side during line operation, resulting in the other side not being under force. This causes the screws and nuts at the connection point of the insulator cup head clamp to loosen, which in turn causes the insulator to fall out of the cup head clamp, seriously affecting the safe operation of the transmission line. Therefore, we have proposed an insulator cup head clamp to solve the above-mentioned problems. Summary of the Invention

[0004] 1. Technical problems to be solved To address the problems existing in the prior art, the present invention aims to provide an insulator cup head clamp that, through the self-locking function of two fastening components, can prevent the two fastening components from loosening and falling off, thereby improving the stability of the positioning component and the limiting component in covering the insulator cup head.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An insulator cup head clamp includes: Positioning component, the positioning component being used for initial engagement of the insulator cup head; A limiting component is provided, positioned directly above the positioning component, and the positioning component and the limiting component are symmetrically distributed. The limiting component cooperates with the positioning component to cover the insulator cup head. The fastening assembly includes two fastening assemblies, which are respectively located at both ends of the positioning assembly. The fastening assemblies are used to connect the positioning assembly and the limiting assembly together and to perform self-locking.

[0007] Furthermore, the positioning component includes a first arc-shaped clamping plate, with first mounting holes at both ends of the first arc-shaped clamping plate. A baffle is fixedly provided on one side of the bottom surface of the inner cavity of the first arc-shaped clamping plate, and a locking pin is fixedly provided on the other side of the bottom surface of the inner cavity of the first arc-shaped clamping plate.

[0008] Furthermore, multiple blocking blocks are provided on both sides of the bottom surface of the first arc-shaped clamp and around the two first mounting holes, and the multiple blocking blocks are distributed in a ring array.

[0009] Furthermore, the limiting component includes a second arc-shaped clamping plate, with second mounting holes at both ends of the second arc-shaped clamping plate, and an insertion hole at the middle position of the top surface of the inner cavity of the second arc-shaped clamping plate and directly above the locking pin.

[0010] Furthermore, the first arc-shaped clamping plate is provided with first reinforcing wing plates on both sides of its bottom and near the two first mounting holes. The second arc-shaped clamping plate has second reinforcing wing plates on both sides of its top surface and near the two second mounting holes.

[0011] Furthermore, the fastening assembly includes a screw, the middle of which passes through the first mounting hole and the second mounting hole. A first nut and a second nut are rotatably connected to the screw and located above the second arc-shaped clamp, and the second nut is located above the first nut. The screw has a locking hole on its side wall and near the top. The second nut has internal thread holes on both side walls, and the two internal thread holes are connected to the inner cavity of the second nut. The internal threaded hole is rotatably connected to a self-locking part, and the middle part of the self-locking part penetrates through the inner cavity of the lock hole.

[0012] Furthermore, a first spring washer is provided on the screw and located between the first nut and the second nut, the first spring washer being used to elastically support the second nut.

[0013] Furthermore, a flat washer and a second spring washer are provided on the screw and located between the first nut and the second arc-shaped clamping plate, with the second spring washer located above the flat washer.

[0014] Furthermore, the self-locking part includes a knob, a screw is fixedly provided on one side of the knob, and the screw is rotatably connected to the inner cavities of the two internal threaded holes. A notch is opened at one end of the screw, and a stop bar is provided in the inner cavity of the notch. At the same time, the stop bar is connected to the two side walls of the inner cavity of the notch through a shaft. The inner wall of the notch is provided with a metal spring, and the side wall of the stop bar is provided with a slot for engaging the metal spring.

[0015] Furthermore, the fastening assembly also includes a rubber pad disposed in the middle of the screw and located between the first arc-shaped clamp and the second arc-shaped clamp. Beneficial effects

[0016] Compared with the prior art, the advantages of this invention are: In this solution, when installing an insulator cup, the worker first inserts the insulator cup into the inner cavity of the positioning component, which initially limits the position of the insulator cup. Then, the limiting component is fastened onto the positioning component, thus covering the insulator cup. Next, two fastening components tightly connect the two ends of the positioning component and the limiting component, preventing them from separating. The self-locking function of the two fastening components prevents them from loosening or falling off, thereby improving the stability of the covering of the insulator cup by the positioning component and the limiting component. Finally, the R-pin is inserted into the limiting component, penetrating the insulator cup, and its bottom end is engaged with the positioning component, thus ensuring the stability of the covering of the insulator cup by the positioning component and the limiting component. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 This is a schematic diagram of the positioning component structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the bottom structure of the positioning component of the present invention.

[0021] Figure 5 This is a schematic diagram of the limiting component structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the fastening component structure of the present invention.

[0023] Figure 7 This is a schematic cross-sectional view of the fastening assembly of the present invention.

[0024] Figure 8 This is a schematic diagram of the self-locking part structure of the present invention.

[0025] Explanation of the labels in the diagram: 1. Positioning component; 11. First arc-shaped clamping plate; 12. First mounting hole; 13. Baffle; 14. Locking pin; 15. Blocking block; 16. First reinforcing wing plate; 2. Limiting component; 21. Second arc-shaped clamping plate; 22. Second mounting hole; 23. Insertion hole; 24. Second reinforcing wing plate; 3. Fastening component; 31. Screw; 32. First nut; 33. Second nut; 34. First spring washer; 35. Locking hole; 36. Internal threaded hole; 37. Self-locking part; 371. Knob; 372. Screw; 373. Notch; 374. Shaft; 375. Stop bar; 376. Metal spring; 377. Slot; 38. Flat washer; 39. Second spring washer; 310. Rubber pad. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0027] Please see Figure 1-2 An insulator cup head clamp includes: a positioning component 1, which is used to initially engage the insulator cup head; a limiting component 2, which is located directly above the positioning component 1 and is symmetrically distributed with the positioning component 1, and is used to cooperate with the positioning component 1 to cover the insulator cup head; and a fastening component 3, of which two fastening components 3 are provided, which are respectively located at both ends of the positioning component 1, and are used to connect the positioning component 1 and the limiting component 2 together and to perform self-locking. When installing an insulator cup, the worker first inserts the insulator cup into the inner cavity of the positioning component 1, which initially limits the position of the insulator cup. Then, the limiting component 2 is fastened onto the positioning component 1, thus covering the insulator cup. Next, the two fastening components 3 tightly connect the two ends of the positioning component 1 and the limiting component 2, preventing them from separating. The self-locking function of the two fastening components 3 also prevents them from loosening or falling off, thereby improving the stability of the covering of the insulator cup by the positioning component 1 and the limiting component 2. Finally, the R-pin is inserted into the limiting component 2, penetrating the insulator cup, and its bottom end is engaged with the positioning component 1, thus ensuring the stability of the covering of the insulator cup by the positioning component 1 and the limiting component 2.

[0028] See Figures 1-5 The positioning component 1 includes a first arc-shaped clamping plate 11, with first mounting holes 12 at both ends. A baffle 13 is fixedly installed on one side of the bottom surface of the inner cavity of the first arc-shaped clamping plate 11, and a locking pin 14 is fixedly installed on the other side of the bottom surface of the inner cavity of the first arc-shaped clamping plate 11. Multiple blocking blocks 15 are provided on both sides of the bottom surface of the first arc-shaped clamping plate 11 and around the two first mounting holes 12, and the multiple blocking blocks 15 are arranged in a ring array. The limiting component 2 includes a second arc-shaped clamping plate 21, with second mounting holes 22 at both ends. An insertion hole 23 is provided at the middle position of the top surface of the inner cavity of the second arc-shaped clamping plate 21 and directly above the locking pin 14. First reinforcing wing plates 16 are provided on both sides of the bottom side walls of the first arc-shaped clamping plate 11 and near the two first mounting holes 12. Second reinforcing wing plates 24 are provided on both sides of the top surface of the second arc-shaped clamping plate 21 and near the two second mounting holes 22. When it is necessary to cover the insulator cup head, the worker can first insert the insulator cup head into the locking pin 14 on the first arc-shaped clamp 11, so that the top of the insulator cup head abuts against the baffle 13, thereby achieving the purpose of initially limiting the position of the insulator cup head. Then, the second arc-shaped clamp 21 is fastened onto the first arc-shaped clamp 11, so that the first arc-shaped clamp 11 and the second arc-shaped clamp 21 cooperate to form a clamp covering the insulator cup head, thereby limiting the position of the insulator cup head. Then, the fastening component 3 can pass through the first mounting hole 12 and the second mounting hole 22, thereby achieving a tight connection between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. Together, they can prevent separation. Through the insertion hole 23, the R-pin can be easily inserted by the staff, and the inserted R-pin can penetrate the insulator cup head. At the same time, its bottom end is engaged with the locking pin 14, which can improve the stability of the insulator cup head installed between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. Through the multiple blocking blocks 15 distributed in a ring array, the fastening component 3 inserted into the first arc-shaped clamp 11 can be engaged and limited, which can improve the stability of the fastening component 3 installation. Through the first reinforcing wing plate 16 and the second reinforcing wing plate 24, the structural strength of the first arc-shaped clamp 11 and the second arc-shaped clamp 21 can be strengthened respectively, which can improve their service life.

[0029] See Figure 3 , Figure 8 The fastening assembly 3 includes a screw 31, the middle of which passes through a first mounting hole 12 and a second mounting hole 22. A first nut 32 and a second nut 33 are rotatably connected to the screw 31 above the second arc-shaped clamping plate 21, with the second nut 33 located above the first nut 32. A locking hole 35 is provided on the side wall of the screw 31 near its top. The second nut 33 has internal threaded holes 36 on both side walls, and the two internal threaded holes 36 are conductively connected to the inner cavity of the second nut 33. A self-locking part 37 is rotatably connected to the inner cavity of the internal threaded hole 36, and the middle of the self-locking part 37 passes through the inner cavity of the locking hole 35. A first spring washer 34 is provided on the screw 31 between the first nut 32 and the second nut 33. For elastic support of the second nut 33, a flat washer 38 and a second spring washer 39 are provided on the screw 31 and between the first nut 32 and the second arc-shaped clamping plate 21. The second spring washer 39 is located above the flat washer 38. The self-locking part 37 includes a knob 371. A screw 372 is fixedly provided on one side of the knob 371 and is rotatably connected to the inner cavity of two internal threaded holes 36. A notch 373 is opened at one end of the screw 372, and a stop bar 375 is provided in the inner cavity of the notch 373. At the same time, the stop bar 375 is connected to the two side walls of the inner cavity of the notch 373 through the shaft 374. A metal spring piece 376 is provided on the side wall of the inner cavity of the notch 373, and a groove 377 for engaging the metal spring piece 376 is opened on one side wall of the stop bar 375. The screw 31 in fastening assembly 3 passes through the first mounting hole 12 and the second mounting hole 22, providing a mounting base for components such as the first nut 32 and the second nut 33, while also providing space for the locking hole 35. By rotating the first nut 32, it engages with the screw 31, allowing for a tight connection between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. This ensures that the first arc-shaped clamp 11 and the second arc-shaped clamp 21 firmly cover the insulator cup head. The flat washer 38 and the second spring washer 39 increase the contact area between the first nut 32 and the second arc-shaped clamp 21 and provide some elasticity to the first nut 32, preventing it from loosening. The second nut 33, through the first spring washer 34, further secures the first nut 32, improving its stability. The first spring washer 34 also provides a reverse spring force to the second nut 33, ensuring its stability. It can initially stabilize, and then by rotating the second nut 33, it can be rotatably installed on the internal threaded hole 36 via the screw 372. The middle part of the screw 372 will penetrate the inner cavity of the locking hole 35 on the screw 31, thereby stabilizing the second nut 33 and preventing it from loosening and falling off. Since one end of the screw 372 has a notch 373, and the inner cavity of the notch 373 is provided with a stop bar 375, and the stop bar 375 is connected to the two side walls of the inner cavity of the notch 373 through the shaft 374. Therefore, when one end of the screw 372 extends out of the second nut 33, the stop rod 375 can rotate within the notch 373 under its own weight, with the shaft 374 as the axis. This allows the stop rod 375 to be in a vertical position, preventing the screw 372 from loosening and ensuring the stability of the screw 372. The metal spring 376 within the notch 373 can also engage with the slot 377 on the side wall of the vertical stop rod 375, further improving the stability of the stop rod 375.

[0030] See Figure 1 , Figure 6 The fastening assembly 3 also includes a rubber pad 310, which is located in the middle of the screw 31 and between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. The rubber pad 310 allows the first arc-shaped clamp 11 and the second arc-shaped clamp 21 to have a certain elasticity when covering the insulator cup head, thereby preventing the first arc-shaped clamp 11 and the second arc-shaped clamp 21 from covering the insulator cup head too tightly and causing damage to the insulator cup head.

[0031] In use: When installing the insulator cup, the operator first inserts the insulator cup into the inner cavity of the positioning component 1, which initially limits the position of the insulator cup. Then, the limiting component 2 is fastened onto the positioning component 1, thus covering the insulator cup. Next, the two fastening components 3 tightly connect the two ends of the positioning component 1 and the limiting component 2, preventing them from separating. The self-locking function of the two fastening components 3 also prevents them from loosening and falling off, thereby improving the stability of the covering of the insulator cup by the positioning component 1 and the limiting component 2. Finally, the R-pin is inserted into the limiting component 2, penetrating the insulator cup, and its bottom end is engaged with the positioning component 1, thus ensuring the stability of the covering of the insulator cup by the positioning component 1 and the limiting component 2.

[0032] When it is necessary to cover the insulator cup head, the worker can first insert the insulator cup head into the locking pin 14 on the first arc-shaped clamp 11, so that the top of the insulator cup head abuts against the baffle 13, thereby achieving the purpose of initially limiting the position of the insulator cup head. Then, the second arc-shaped clamp 21 is fastened onto the first arc-shaped clamp 11, so that the first arc-shaped clamp 11 and the second arc-shaped clamp 21 cooperate to form a clamp covering the insulator cup head, thereby limiting the position of the insulator cup head. Then, the fastening component 3 can pass through the first mounting hole 12 and the second mounting hole 22, thereby achieving a tight connection between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. Together, they can prevent separation. Through the insertion hole 23, the R-pin can be easily inserted by the staff, and the inserted R-pin can penetrate the insulator cup head. At the same time, its bottom end is engaged with the locking pin 14, which can improve the stability of the insulator cup head installed between the first arc-shaped clamp 11 and the second arc-shaped clamp 21. Through the multiple blocking blocks 15 distributed in a ring array, the fastening component 3 inserted into the first arc-shaped clamp 11 can be engaged and limited, which can improve the stability of the fastening component 3 installation. Through the first reinforcing wing plate 16 and the second reinforcing wing plate 24, the structural strength of the first arc-shaped clamp 11 and the second arc-shaped clamp 21 can be strengthened respectively, which can improve their service life.

[0033] The screw 31 in fastening assembly 3 can pass through the first mounting hole 12 and the second mounting hole 22, providing a mounting base for components such as the first nut 32 and the second nut 33, while also providing space for the locking hole 35. By rotating the first nut 32, it engages with the screw 31, allowing for a tight connection between the first arc-shaped clamping plate 11 and the second arc-shaped clamping plate 21. This ensures that the first arc-shaped clamping plate 11 and the second arc-shaped clamping plate 21 firmly cover the insulator cup head. Furthermore, the flat washer 38 and the second spring washer 39 enhance the stability of the first nut 32. The contact area between the second arc-shaped clamp 21 and the first nut 32 provides a certain elasticity, thus preventing the first nut 32 from loosening. Then, the first nut 32 can be further fixed by the second nut 33 via the first spring washer 34, thereby further improving the stability of the first nut 32. The first spring washer 34 can also provide a reverse elastic force to the second nut 33, thus enabling the second nut 33 to be initially stabilized. Then, by rotating the second nut 33, it can be rotated and installed on the internal threaded hole 36 via the screw 372. The middle part of screw 372 penetrates the inner cavity of the locking hole 35 on screw 31, thereby securing the second nut 33 and preventing it from loosening and falling off. Since one end of screw 372 has a notch 373, and a stop bar 375 is installed inside the notch 373, and the stop bar 375 is connected to the two side walls of the notch 373 via shaft 374, when one end of screw 372 extends beyond the second nut 33, the stop bar 375 can rotate within the notch 373 under its own weight, about shaft 374 as the axis, thus ensuring the stop bar 375... In a vertical position, the screw 372 is prevented from loosening, ensuring the stability of its use. The metal spring 376 in the notch 373 can also engage with the slot 377 on the side wall of the vertical stop bar 375, further improving the stability of the stop bar 375. The rubber pad 310 allows the first arc-shaped clamp 11 and the second arc-shaped clamp 21 to have a certain elasticity when covering the insulator cup head, thereby preventing the first arc-shaped clamp 11 and the second arc-shaped clamp 21 from covering the insulator cup head too tightly and causing damage to the insulator cup head.

[0034] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. An insulator cup head clamp, characterized in that: include: Positioning component (1), the positioning component (1) is used for initial engagement of the insulator cup head; A limiting component (2) is disposed directly above the positioning component (1), and the positioning component (1) and the limiting component (2) are symmetrically distributed. The limiting component (2) is used to cooperate with the positioning component (1) to cover the insulator cup head; and Fastening component (3), two fastening components (3) are provided, and the two fastening components (3) are respectively provided at both ends of the positioning component (1). The fastening components (3) are used to connect the positioning component (1) and the limiting component (2) together and perform self-locking; The positioning component (1) includes a first arc-shaped clamp (11), with first mounting holes (12) at both ends of the first arc-shaped clamp (11), a baffle (13) fixedly provided on one side of the bottom surface of the inner cavity of the first arc-shaped clamp (11), and a locking pin (14) fixedly provided on the other side of the bottom surface of the inner cavity of the first arc-shaped clamp (11). Multiple blocking blocks (15) are provided on both sides of the bottom surface of the first arc-shaped clamp (11) and around the two first mounting holes (12), and the multiple blocking blocks (15) are arranged in a ring array. The limiting component (2) includes a second arc-shaped clamp (21), with second mounting holes (22) at both ends of the second arc-shaped clamp (21), and an insertion hole (23) at the middle position of the top surface of the inner cavity of the second arc-shaped clamp (21) and directly above the locking pin (14). The fastening assembly (3) includes a screw (31), the middle of which passes through the first mounting hole (12) and the second mounting hole (22). A first nut (32) and a second nut (33) are rotatably connected to the screw (31) and located above the second arc-shaped clamp (21), and the second nut (33) is located above the first nut (32). A locking hole (35) is provided on the side wall of the screw (31) and near the top. The second nut (33) has internal thread holes (36) on both side walls, and the two internal thread holes (36) are connected to the inner cavity of the second nut (33). A self-locking part (37) is rotatably connected to the inner cavity of the internal thread hole (36), and the middle of the self-locking part (37) passes through the inner cavity of the locking hole (35). The self-locking part (37) includes a knob (371), a screw (372) is fixedly provided on one side of the knob (371), and the screw (372) is rotatably connected to the inner cavity of the two internal threaded holes (36). A notch (373) is provided at one end of the screw (372), and a stop bar (375) is provided in the inner cavity of the notch (373). At the same time, the stop bar (375) is connected to the two side walls of the inner cavity of the notch (373) through a shaft (374). A metal spring piece (376) is provided on the side wall of the inner cavity of the notch (373), and a slot (377) for engaging the metal spring piece (376) is provided on one side wall of the stop bar (375).

2. The insulator cup head clamp according to claim 1, characterized in that: The first arc-shaped clamp (11) has a first reinforcing wing plate (16) on both sides of its bottom and near the two first mounting holes (12). The second arc-shaped clamp (21) has a second reinforcing wing plate (24) on both sides of the top surface and near the two second mounting holes (22).

3. The insulator cup head clamp according to claim 1, characterized in that: A first spring washer (34) is provided on the screw (31) and between the first nut (32) and the second nut (33), the first spring washer (34) being used to elastically support the second nut (33).

4. The insulator cup head clamp according to claim 1, characterized in that: A flat washer (38) and a second spring washer (39) are provided on the screw (31) and between the first nut (32) and the second arc-shaped clamp (21), with the second spring washer (39) located above the flat washer (38).

5. An insulator cup head clamp according to claim 1, characterized in that: The fastening assembly (3) also includes a rubber pad (310), which is disposed in the middle of the screw (31) and located between the first arc-shaped clamp (11) and the second arc-shaped clamp (21).

Citation Information

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