Pull rod type loop device

Abstract

The utility model relates to the technical field of loop devices, in particular to a pull rod type loop device which comprises an insertion core assembly and a dustproof cap connected with one end of the insertion core assembly in a sleeved mode, the other end of the insertion core assembly is connected with a shell in a sleeved mode, and one end, away from the dustproof cap, of the shell is connected with a pull rod. The insertion core assembly comprises a shell, a connecting block is fixedly installed at one end of the shell, and an insertion core module is arranged at the end, away from the shell, of the connecting block. A spring seat is arranged at one end of the shell away from the connecting block; a large spring is arranged in the spring seat; the end, away from the shell, of the spring seat is connected with an optical fiber loop device which comprises an optical fiber loop device base and an optical fiber loop device upper cover connected with the optical fiber loop device base. The loop device is small and exquisite in design and appearance, has a pull rod unlocking function, facilitates replacement of the optical fiber loop device, is internally integrated with a split spring seat with an opening separation structure, facilitates checking of problems, brings convenience to assembly or replacement of optical fibers, has diversified functions, and saves a large amount of assembly time.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a lever-type circuit breaker. Background Technology

[0002] Currently available conventional fiber optic return devices are large and occupy a significant amount of space, causing considerable inconvenience for use and replacement in high-density distribution boxes, and disassembly is quite difficult. When inspecting for faults after opening the fiber optic return device, the integrated spring seat makes it impossible to pinpoint the problem; the entire MPO connector product must be disassembled. Furthermore, they offer limited functionality and require lengthy replacement times.

[0003] In addition, because conventional fiber optic return devices are large in size and lack the assistance of a pull rod during replacement, the replacement speed is greatly reduced, causing inconvenience. When checking internal problems, all parts need to be disassembled, resulting in a waste of time.

[0004] Therefore, this application requires the design of a lever-type circuit breaker to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pull-rod type return device. The return device is compact in design and features a pull-rod unlocking function, which facilitates the replacement of the fiber optic return device. It integrates a split spring seat with an opening for easy inspection of problems, bringing convenience to fiber optic assembly or replacement. It is multifunctional and saves a lot of assembly time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lever-type circuit breaker includes a plug assembly and a dust cap sleeved on one end of the plug assembly. A housing is sleeved on the other end of the plug assembly, and a lever is connected to the end of the housing away from the dust cap.

[0008] The ferrule assembly includes a housing, a connecting block is fixedly installed at one end of the housing, and a ferrule module is provided at the end of the connecting block away from the housing; a spring seat is provided at the end of the housing away from the connecting block; a large spring is provided inside the spring seat, one end of the large spring is connected to the connecting block, and the other end of the large spring is connected to the spring seat;

[0009] The end of the spring seat away from the outer casing is connected to an optical fiber return device, which includes an optical fiber return device base and an optical fiber return device cover connected to the optical fiber return device base.

[0010] By adopting the above technical solution, the fiber optic return unit has a small size, comes with a pull rod unlocking function, is easy to operate when pulling out, and is convenient to replace. For internal problems, simply remove the top cover of the split spring seat to find the problem and replace it. It is convenient without having to disassemble the entire product. This product is integrated with the fiber optic return unit, which can achieve higher density deployment, is easier to maintain and replace lines, and saves a lot of construction time, thereby saving the overall project cost.

[0011] Preferably, the spring seat is a split-type spring seat, comprising a lower spring seat base and a upper spring seat cover connected to the lower spring seat base; the front and rear surfaces of the lower spring seat base near the connecting block are provided with first locking blocks, the lower spring seat base has a slot for inserting the upper spring seat cover, the lower spring seat base away from the connecting block is provided with a second locking block and a notch respectively; the upper surface of the lower spring seat base is also provided with a third locking block, and the upper spring seat cover near the fiber optic looper is provided with a first protrusion, which matches and connects with the notch.

[0012] By adopting the above technical solution, a split-type spring seat is used. By removing the top cover of the spring seat, the problem can be found and the replacement is convenient without having to disassemble the entire product. This brings convenience to the assembly or replacement of optical fibers, diversifies functions, and saves a lot of assembly time.

[0013] Preferably, the fiber optic return unit has a first slot at one end of the fiber optic return unit base near the spring seat, and a vertically arranged cylinder in the cavity at the other end of the fiber optic return unit base away from the spring seat. The edge of the fiber optic return unit base has an upward-facing fourth protrusion. The inner wall of the fiber optic return unit cover has a second slot at one end of the fiber optic return unit near the spring seat, and the edge of the fiber optic return unit cover has a recessed third slot. The inner wall of the fiber optic return unit cover has a downward-extending column, which is inserted into the cylinder.

[0014] By adopting the above technical solution, the optical fiber recirculator here has a small size, comes with a pull rod unlocking function, and is easy to operate and replace when pulled out.

[0015] Preferably, the pull rod includes a rod body, and the end of the rod body near the housing is provided with two upwardly extending clamping blocks, the two clamping blocks are arranged opposite each other, and the top of each clamping block is provided with a horizontally arranged push-pull block; the end of the rod body away from the housing is provided with a through opening.

[0016] Preferably, the upper and lower surfaces of the outer side of the housing are provided with grooves, and the end of the groove near the pull rod is provided with a protrusion; the upper and lower surfaces of the inner wall of the housing are provided with first guide blocks.

[0017] By adopting the above technical solution: the two clamping blocks and push-pull blocks of the pull rod are assembled with the groove surface of the housing. By pushing and pulling the rear pull rod, the housing is moved, which in turn moves the front connecting block, the ferrule module and other components as a whole, thereby enabling the connection and unlocking of the circuit device.

[0018] Preferably, the upper and lower surfaces of the outer shell are respectively provided with a second protrusion and a third protrusion, and a first guide groove is formed between the second protrusion and the third protrusion; the first guide block can slide within the first guide groove; the first guide block is in planar contact with the second protrusion and in inclined contact with the third protrusion; a first snap-fit ​​is provided on the front and rear surfaces of the outer shell, and a small spring is provided between the front and rear surfaces of the outer shell and the inner wall of the shell.

[0019] By adopting the above technical solution: when the outer shell moves under the action of the housing, the first locking block can engage with the first locking slot on the outer shell, so that the connecting block, the ferrule module, the spring seat, the optical fiber circuit breaker and other components move simultaneously, thereby realizing the unlocking and connection of the circuit breaker.

[0020] This utility model has the following beneficial effects:

[0021] This utility model adopts a split spring seat. By removing the top cover of the spring seat, problems can be found and replacements are convenient without having to disassemble the entire product. It brings convenience to the assembly or replacement of optical fibers, has diversified functions, and saves a lot of assembly time.

[0022] This new fiber optic loopback device features a smaller design, occupies less space, and is easier to use. The included pull rod unlocking allows for higher density deployment, easier maintenance and line replacement, saving significant construction time and thus reducing overall project costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a cross-sectional view of the present invention;

[0026] Figure 4 This is a cross-sectional view from another perspective in this utility model;

[0027] Figure 5 This is a schematic diagram of the installation of the spring seat and the large spring in this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the lower base of the spring seat in this utility model;

[0029] Figure 7 This is a schematic diagram showing the installation of the spring seat and the outer shell in this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the fiber optic looper base in this utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the fiber optic looper cover in this utility model;

[0032] Figure 10 This is a schematic diagram of the tie rod in this utility model;

[0033] Figure 11 This is a schematic diagram of the outer shell structure in this utility model;

[0034] Figure 12 This is a schematic diagram of the shell structure in this utility model.

[0035] In the diagram: 1. Dust cap; 2. Housing; 2-1. Groove surface; 2-2. Protrusion; 2-3. First guide block; 3. Pull rod; 3-1. Rod body; 3-2. Clamping block; 3-3. Push-pull block; 3-4. Through port; 4. Outer shell; 4-1. Second protrusion; 4-2. Third protrusion; 4-3. First guide groove; 4-4. First bayonet; 5. Connecting block; 6. Socket module; 7. Spring seat; 7-1. First locking block; 8. Fiber optic return device; 9. Large spring; 10. Fiber optic return device base; 10-1. First slot; 10-2. Cylinder; 10-3. Fourth protrusion; 11. Fiber optic return device top cover; 11-1. Second slot; 11-2. Third slot; 11-3. Column; 12. Spring seat lower base; 12-1. First locking block; 12-2. Slot; 12-3. Second locking block; 12-4. Notch; 12-5. Third locking block; 13. Spring seat top cover; 13-1. First protrusion; 14. Small spring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] Reference Figures 1-12 A lever-type circuit breaker includes a plug assembly and a dust cap 1 sleeved on one end of the plug assembly. A housing 2 is sleeved on the other end of the plug assembly, and a lever 3 is connected to the end of the housing 2 away from the dust cap 1.

[0038] Reference Figure 3-4The ferrule assembly includes a housing 4, a connecting block 5 is fixedly installed at one end of the housing 4, and a ferrule module 6 is provided at the end of the connecting block 5 away from the housing 4; a spring seat 7 is provided at the end of the housing 4 away from the connecting block 5; a large spring 9 is provided inside the spring seat 7, one end of the large spring 9 is connected to the connecting block 5, and the other end of the large spring 9 is connected to the spring seat 7.

[0039] The end of the spring seat 7 away from the outer casing 4 is connected to an optical fiber return device 8. The optical fiber return device 8 includes an optical fiber return device base 10 and an optical fiber return device cover 11 connected to the optical fiber return device base 10.

[0040] In this embodiment, during practical application, the fiber optic return unit 8 contains an optical fiber. One end of the optical fiber is connected to the ferrule assembly, and the other end loops around the cylinder back to the origin. This structural feature is existing technology and is therefore not shown in the accompanying drawings. The connecting block 5 and ferrule module 6 are used to connect the return unit to an external interface, thereby enabling signal transmission. This fiber optic return unit is small in size and features a pull-rod unlocking function, making it easy to remove and replace. For internal issues, simply removing the top cover of the split spring seat allows for easy troubleshooting and replacement without disassembling the entire product. This integrated fiber optic return unit allows for higher density deployment, easier maintenance and line replacement, and significant savings in construction time, thus reducing overall project costs.

[0041] When the circuit breaker needs to be reset, the large spring 9 causes the ferrule assembly to reset. Here, by connecting the pull rod 3 at the rear end of the circuit breaker to the housing 2 at the front end, in a high-density environment, pushing or pulling the rear pull rod 3 moves the housing 2, which in turn moves the entire circuit breaker, thus enabling connection and unlocking.

[0042] Specifically, refer to Figure 5-6 The spring seat 7 is a split type, comprising a lower spring seat base 12 and a upper spring seat cover 13 connected to the lower spring seat base 12. The lower spring seat base 12 has a first locking block 12-1 on both its front and rear surfaces near the connecting block 5. The lower spring seat base 12 has a slot 12-2 for inserting the upper spring seat cover 13. The lower spring seat base 12 has a second locking block 12-3 and a notch 12-4 on its side away from the connecting block 5. The upper surface of the lower spring seat base 12 also has a third locking block 12-5. The upper spring seat cover 13 has a first protrusion 13-1 near the fiber optic return unit 10, and the first protrusion 13-1 matches and connects with the notch 12-4.

[0043] In this embodiment, a split-type spring seat is adopted. Problems can be found and replacements can be easily made by pulling out the upper cover 13 of the spring seat, without having to disassemble the entire product. During assembly, the upper cover 13 of the spring seat is simply inserted into the slot 12-2 to install the upper cover 13 of the spring seat and the lower base 12 of the spring seat. This brings convenience to the assembly or replacement of optical fibers, provides multiple functions, and saves a lot of assembly time.

[0044] Specifically, refer to Figures 8-9 The fiber optic return unit 8 has a first slot 10-1 at one end of its base 10 near the spring seat 7, and a vertically arranged cylinder 10-2 in the cavity at the other end of its base 10 away from the spring seat 7. The edge of the base 10 has an upward-facing fourth protrusion 10-3. The fiber optic return unit 8 has a second slot 11-1 at one end of its inner wall near the spring seat 7, and a concave third slot 11-2 at the edge of its inner wall. The inner wall of the fiber optic return unit 8 also has a downward-extending column 11-3, which is inserted into the cylinder 10-2.

[0045] In this embodiment, the fiber optic return unit is small in size and features a pull-rod unlocking function, making it easy to remove and replace. In practical applications, when the split spring seat is installed with the fiber optic return unit, the first slot 10-1 engages with the second slot 12-3, the second slot 11-1 engages with the third slot 12-5, and both the column 11-3 and the cylinder 10-2 are elastic columns or cylinders, with the column 11-3 and cylinder 10-2 inserted into each other; the fourth protrusion 10-3 is inserted into the third slot 11-2. When the return unit needs to be replaced or repaired, the fiber optic return unit cover 11 is removed, and the spring seat cover 13 is pulled out to locate the problem. Replacement is convenient and does not require disassembling the entire product, saving time and effort.

[0046] Specifically, refer to Figure 10 The pull rod 3 includes a rod body 3-1. The end of the rod body 3-1 near the housing 2 is provided with two upwardly extending clamping blocks 3-2. The two clamping blocks 3-2 are arranged opposite each other, and the top of each clamping block 3-2 is provided with a horizontally arranged push-pull block 3-3. The end of the rod body 3-1 away from the housing 2 is provided with a through opening 3-4.

[0047] Specifically, refer to Figure 12 The upper and lower surfaces of the outer side of the housing 2 are provided with grooves 2-1, and the end of the grooves 2-1 near the pull rod 3 is provided with a protrusion 2-2; the upper and lower surfaces of the inner wall of the housing 2 are provided with first guide blocks 2-3.

[0048] In this embodiment, the two clamping blocks 3-2 and the push-pull block 3-3 of the pull rod 3 are assembled with the groove surface 2-1 of the housing 2. By pushing and pulling the rear pull rod 3, the housing 2 is moved, which in turn moves the front connecting block 5, the insert module 6 and other components as a whole, thereby enabling connection and unlocking.

[0049] Specifically, refer to Figure 11 The upper and lower surfaces of the outer shell 4 are respectively provided with a second protrusion 4-1 and a third protrusion 4-2, and a first guide groove 4-3 is formed between the second protrusion 4-1 and the third protrusion 4-2; the first guide block 2-3 can slide within the first guide groove 4-3; the first guide block 2-3 is in planar contact with the second protrusion 4-1, and the first guide block 2-3 is in inclined contact with the third protrusion 4-2; a first latch 4-4 is provided on the front and rear surfaces of the outer shell 4, and a small spring 14 is provided between the front and rear surfaces of the outer shell 4 and the inner wall of the shell 2.

[0050] In this embodiment, when the outer shell 4 moves under the action of the shell 2, the first locking block 12-1 can engage with the first locking slot 4-4 on the outer shell 4, causing the connecting block 5, the ferrule module 6, the spring seat 7, the fiber optic looper 8, etc. to move simultaneously, thereby realizing the unlocking and connection of the lever-type looper.

[0051] In use, when the lever-type return device is unlocked, pushing or pulling the lever 3 moves the housing 2 that is fitted with it. Since the housing 2 is fitted with the outer shell 4, the outer shell 4 moves, causing the front connecting block 5, ferrule module 6, etc., to move as well. The first locking block 12-1 engages with the first locking slot 4-4 on the outer shell 4, causing the spring seat 7 to move. The first locking slot 10-1 engages with the second locking block 12-3, and the second locking slot 11-1 engages with the third locking block 12-5, ultimately moving the entire fiber optic return device 8 to unlock. The large spring 9 resets the ferrule assembly; the two small springs 14 reset the housing 2, outer shell 4, etc., thus resetting the lever-type return device.

[0052] In summary, this utility model's return device is compact in size and features a pull rod unlocking function, facilitating the replacement of the fiber optic return device. Internally, it incorporates a split-type spring seat with an opening for easy inspection of problems, bringing convenience to fiber optic assembly or replacement. Its diverse functions save significant assembly time.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lever-type circuit breaker, comprising a ferrule assembly and a dust cap (1) sleeved on one end of the ferrule assembly, characterized in that, The other end of the ferrule assembly is fitted with a housing (2), and a pull rod (3) is connected to the end of the housing (2) away from the dust cap (1). The ferrule assembly includes a housing (4), a connecting block (5) is fixedly installed at one end of the housing (4), and a ferrule module (6) is provided at the end of the connecting block (5) away from the housing (4); a spring seat (7) is provided at the end of the housing (4) away from the connecting block (5); a large spring (9) is provided inside the spring seat (7), one end of the large spring (9) is connected to the connecting block (5), and the other end of the large spring (9) is connected to the spring seat (7); The end of the spring seat (7) away from the outer shell (4) is connected to an optical fiber return device (8), which includes an optical fiber return device base (10) and an optical fiber return device cover (11) connected to the optical fiber return device base (10).

2. The lever-type circuit breaker according to claim 1, characterized in that, The spring seat (7) is a split type spring seat (7). The spring seat (7) includes a lower spring seat base (12) and a spring seat upper cover (13) connected to the lower spring seat base (12). The front and rear surfaces of the lower spring seat base (12) near the connecting block (5) are provided with first locking blocks (12-1). The lower spring seat base (12) is provided with a slot (12-2) for inserting the spring seat upper cover (13). The lower spring seat base (12) away from the connecting block (5) is provided with a second locking block (12-3) and a notch (12-4). The upper surface of the lower spring seat base (12) is also provided with a third locking block (12-5). The upper cover (13) near the fiber optic looper (8) is provided with a first protrusion (13-1). The first protrusion (13-1) is matched and connected with the notch (12-4).

3. A lever-type circuit breaker according to claim 1, characterized in that, The fiber optic looper (8) has a first slot (10-1) at one end of the fiber optic looper base (10) near the spring seat (7), and a vertically arranged cylinder (10-2) in the cavity at the other end of the fiber optic looper base (10) away from the spring seat (7). The edge of the fiber optic looper base (10) has an upward-facing fourth protrusion (10-3). The inner wall of the fiber optic looper cover (11) of the fiber optic looper (8) has a second slot (11-1) at one end of the fiber optic looper cover (7), and a concave third slot (11-2) in the edge of the fiber optic looper cover (11). The inner wall of the fiber optic looper cover (11) has a downward-extending column (11-3), which is inserted into the cylinder (10-2).

4. A lever-type circuit breaker according to claim 1, characterized in that, The pull rod (3) includes a rod body (3-1), and the end of the rod body (3-1) near the housing (2) is provided with two upwardly extending clamping blocks (3-2), the two clamping blocks (3-2) are arranged opposite to each other, and the top of each clamping block (3-2) is provided with a horizontally arranged push-pull block (3-3); the end of the rod body (3-1) away from the housing (2) is provided with a through opening (3-4).

5. A lever-type circuit breaker according to claim 4, characterized in that, The upper and lower surfaces of the outer side of the housing (2) are provided with grooved surfaces (2-1), and the end of the grooved surface (2-1) near the pull rod (3) is provided with a protrusion (2-2); the upper and lower surfaces of the inner wall of the housing (2) are provided with first guide blocks (2-3).

6. A lever-type circuit breaker according to claim 5, characterized in that, The upper and lower surfaces of the outer shell (4) are respectively provided with a second protrusion (4-1) and a third protrusion (4-2), and a first guide groove (4-3) is formed between the second protrusion (4-1) and the third protrusion (4-2); the first guide block (2-3) can slide within the first guide groove (4-3); the first guide block (2-3) is in planar contact with the second protrusion (4-1), and the first guide block (2-3) is in inclined contact with the third protrusion (4-2); the front and rear surfaces of the outer shell (4) are provided with a first snap (4-4), and a small spring (14) is provided between the front and rear surfaces of the outer shell (4) and the inner wall of the shell (2).

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