Segmented combined type cold shrinkage outdoor terminal insulation structure

Abstract

The utility model discloses a segmented combined cold shrink outdoor terminal insulation structure, relates to the cold shrink outdoor terminal field, and comprises an end head and an insulator, the top of the end head is symmetrically provided with limiting grooves, the bottom of the insulator is symmetrically provided with connecting blocks, the connecting blocks are internally provided with sliding columns in a sliding manner in the vertical direction, and the sliding columns are connected with the limiting grooves. And a limiting block matched with the limiting groove is slidably arranged at one end of the connecting block in the horizontal direction, and a special-shaped sliding groove allowing the sliding column to slide is formed in the limiting groove. According to the utility model, the insulator is rotated to enable the sliding column to move upwards under the cooperation of the special-shaped sliding groove, and the contact surface of the connecting block and the limiting block is arc-shaped, so that the limiting block slides towards the interior of the limiting groove in the sliding process, thereby realizing the limiting connection between the end and the insulator. In the process, a worker does not need a special tool for connection, the overall installation efficiency is improved, and the workload of the worker is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cold shrink outdoor terminals, specifically a segmented combined cold shrink outdoor terminal insulation structure. Background Technology

[0002] Cold shrink cable terminations are components of various cable accessories, made by injection vulcanizing elastomer materials (commonly silicone rubber and ethylene propylene rubber) in the factory, then expanding their diameter and lining them with plastic spiral supports. During on-site installation, these pre-expanded parts are fitted onto the treated cable end or joint, the internal supporting plastic spiral strip (support) is pulled out, and it is pressed tightly onto the cable insulation. Because it relies on elastic recoil force at room temperature, rather than being heated to shrink like heat shrink cable accessories, it is commonly known as a cold shrink cable accessory.

[0003] Chinese patent CN209402137 U discloses a cold-shrink outdoor terminal head. A stress cone is sleeved on the upper port of the cold-shrink insulating tube under the shielding layer. A stress tube and an inner insulating tube are sleeved inside the stress cone. Finally, the cold-shrink terminal is sleeved at the connection between the cable and the grounding wire and the insulator. The inner wall of the sealed insulating tube, the inner wall of the cold-shrink insulating tube under the shielding layer, and the inner wall of the stress cone can be pulled out to remove the polypropylene spiral support strip. At this time, the stress cone can be tightly attached to the cable.

[0004] In summary, the above-mentioned structure, with its integrated cold-shrink outdoor terminal, requires specialized installation tools during actual installation, which wastes overall installation efficiency and increases the installation burden on staff. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a segmented combined cold-shrink outdoor terminal insulation structure to solve the technical problem that in the actual installation process, workers need to use special installation tools, which wastes too much overall installation efficiency and increases the installation burden on workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a segmented combined cold-shrink outdoor terminal insulation structure, including an end and an insulator. The top of the end is symmetrically provided with limiting grooves, and a connecting block is symmetrically provided at the bottom of the insulator. A sliding column is slidably provided in the vertical direction inside the connecting block, and a limiting block that cooperates with the limiting groove is slidably provided in the horizontal direction at one end of the connecting block. The inside of the limiting groove is provided with an irregularly shaped sliding groove for the sliding column to slide.

[0007] By adopting the above technical solution, the connecting block is inserted into the limiting groove, and the insulator is rotated to make the sliding column move upward with the cooperation of the irregular sliding groove. Since the contact surface between the connecting block and the limiting block is arc-shaped, the limiting block will slide into the limiting groove during the sliding process, thereby realizing the limiting connection between the end and the insulator. During this process, the workers do not need to use special tools for connection, which improves the overall installation efficiency and reduces the workload of the workers.

[0008] The present invention is further configured such that a through hole is provided on the connecting block, and a plug is installed inside the limiting groove.

[0009] Preferably, during the rotation of the connecting block, the insert in the limiting groove engages with the insertion hole on the connecting block, which further improves the stability of the connection between the end and the insulator. The two sets of snap-fit ​​settings can effectively prevent vertical shaking between the end and the insulator.

[0010] The present invention is further configured such that one end of the sliding column and the contact surface of the limiting block are arranged in an arc shape.

[0011] Preferably, the arc shape allows the sliding column to slide steadily to one side as it slides upward, effectively preventing the sliding column and the limiting block from getting stuck during the sliding process.

[0012] The present invention is further configured such that the inner wall of the insertion hole and the outer wall of the insertion post are provided with rough surfaces, and one end of the insertion hole is provided in an open shape.

[0013] Preferably, the rough surface increases the sliding friction between the socket and the post, preventing the connecting block from easily sliding off the post, and the open surface guides the post itself, ensuring a stable connection between the post and the socket.

[0014] The present invention is further configured such that the overall height of the connecting block is the same as the distance from the highest end of the irregular groove to the top of the limiting groove.

[0015] Preferably, when the connecting block is inserted into the limiting groove, the bottom end of the sliding column contacts the lowest end of the irregular sliding groove. At this time, when the operator rotates the insulator itself, the sliding column will slide upward under the action of the irregular sliding groove. As the sliding column moves upward, it will drive the limiting block to push out to one side until it slides into one side of the limiting groove.

[0016] The present invention is further configured such that the top of the limiting groove is entirely open.

[0017] Preferably, the open design facilitates the guiding function of the connecting block itself, ensuring the connection efficiency between the end and the insulator during the process.

[0018] The present invention is further configured such that the top of the end and the bottom of the insulator are smoothly arranged.

[0019] Preferably, the smooth surface helps reduce the sliding friction between the end and the insulator, which facilitates the subsequent separation of the insulator and the end by the operator.

[0020] The present invention is further configured such that the outer wall of the insulator is provided with multi-level umbrella skirts, and the umbrella skirts themselves are integrally formed.

[0021] Preferably, the multi-level umbrella skirt can effectively prevent moisture from penetrating into the inside of the cable terminal head during rainy weather, thus effectively avoiding circuit failures caused by dampness.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention facilitates carrying by combining the end cap and insulator in a modular design. The end cap has a limiting groove for the connecting block to be inserted. During connection, the connecting block is inserted into the limiting groove, and the insulator is rotated, causing the sliding column to move upwards in conjunction with the irregularly shaped groove. Because the contact surface between the connecting block and the limiting block is arc-shaped, the limiting block slides into the limiting groove during the sliding process, thus achieving a limiting connection between the end cap and the insulator. This process eliminates the need for special tools, improving overall installation efficiency and reducing the workload of the workers. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is the front view of the present invention;

[0026] Figure 3 This utility model Figure 1 Enlarged view of A in the middle;

[0027] Figure 4 This is a cross-sectional view of the end of this utility model;

[0028] Figure 5 This is a cross-sectional view of the connecting block of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. End; 2. Insulator; 3. Connecting block; 4. Sliding post; 5. Insertion hole; 6. Limiting block; 7. Limiting groove; 8. Irregular sliding groove; 9. Insertion post. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] First embodiment:

[0034] Please see Figures 1-5 The illustrated segmented, modular, cold-shrink outdoor terminal insulation structure includes an end cap 1, an insulator 2, a snap-fit ​​mechanism, a limiting mechanism, and a locking mechanism. A limiting groove 7 is symmetrically formed at the top of the end cap 1, and connecting blocks 3 are symmetrically arranged at the bottom of the insulator 2. The operator snaps the connecting blocks 3 at the bottom of the insulator 2 into the limiting groove 7 at the top of the end cap 1, and then rotates the entire insulator 2, causing the connecting blocks 3 to rotate within the limiting groove 7. A sliding post 4 is vertically slidable within the connecting block 3, and a limiting block 6, which mates with the limiting groove 7, is horizontally slidable at one end of the connecting block 3. A sliding guide is provided inside the limiting groove 7 for the sliding post 4 to slide. The shaped groove 8 has the same overall height as the distance from the highest end of the shaped groove 8 to the top of the limiting groove 7. When the connecting block 3 is inserted into the limiting groove 7, the bottom end of the sliding column 4 contacts the lowest end of the shaped groove 8. When the operator rotates the insulator 2, the sliding column 4 will slide upward under the action of the shaped groove 8. As the sliding column 4 moves upward, it will push the limiting block 6 to one side until it slides into one side of the limiting groove 7. This achieves a limiting connection between the end 1 and the insulator 2. During this process, the operator does not need special tools to connect, which improves the overall installation efficiency and reduces the workload of the operator.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The contact surface between one end of the sliding column 4 and the limiting block 6 is arc-shaped. The arc shape can stably drive the limiting block 6 to slide to one side during the upward sliding of the sliding column 4. This effectively prevents the sliding column 4 and the limiting block 6 from getting stuck during the sliding process. The top of the limiting groove 7 is open, which facilitates the guidance of the connecting block 3 itself, ensuring the connection efficiency between the end 1 and the insulator 2.

[0036] Second embodiment:

[0037] Please see Figure 4 The segmented combined cold shrink outdoor terminal insulation structure shown is similar in overall structure to Embodiment 1. The connecting block 3 has a through hole 5, and a plug 9 is installed inside the limiting groove 7. During the rotation of the connecting block 3, the plug 9 in the limiting groove 7 will engage with the through hole 5 on the connecting block 3. This process further improves the stability of the connection between the end 1 and the insulator 2. The two sets of snap-fit ​​settings can effectively prevent vertical shaking between the end 1 and the insulator 2.

[0038] In practical operation, the present invention is used as follows: The operator installs end 1 at the designated position, then inserts the connecting block 3 at the bottom of the insulator 2 into the limiting groove 7 on end 1. By rotating the insulator 2, the connecting block 3 rotates within the limiting groove 7. Since a sliding post 4 is vertically slidably mounted on the bottom of the connecting block 3, the sliding post 4 slides upwards in cooperation with the irregularly shaped sliding groove 8 during the rotation of the connecting block 3. During this process, the sliding post 4 presses against one end of the limiting block 6, causing the limiting block 6 to slide out of the connecting block 3 and, in cooperation with the limiting groove 7, complete the connection between end 1 and insulator 2. This process eliminates the need for special tools, improving overall installation efficiency and reducing the workload of the operator.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A segmented combined cold-shrink outdoor terminal insulation structure, comprising an end (1) and an insulator (2), characterized in that: The top of the end (1) is symmetrically provided with a limiting groove (7), and a connecting block (3) is symmetrically provided at the bottom of the insulator (2). A sliding column (4) is slidably provided in the vertical direction inside the connecting block (3), and a limiting block (6) that cooperates with the limiting groove (7) is slidably provided in the horizontal direction at one end of the connecting block (3). An irregularly shaped sliding groove (8) is provided inside the limiting groove (7) for the sliding column (4) to slide.

2. The segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: The connecting block (3) has a through hole (5) and a plug (9) is installed inside the limiting groove (7).

3. The segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: One end of the sliding column (4) and the contact surface of the limiting block (6) are arranged in an arc shape.

4. The segmented combined cold-shrink outdoor terminal insulation structure according to claim 2, characterized in that: The inner wall of the insertion hole (5) and the outer wall of the insertion post (9) are provided with rough surfaces, and one end of the insertion hole (5) is provided in an open shape.

5. A segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: The overall height of the connecting block (3) is the same as the distance from the highest end of the irregular groove (8) to the top of the limiting groove (7).

6. The segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: The top of the limiting groove (7) is generally open.

7. The segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: The top of the end (1) and the bottom of the insulator (2) are smoothly arranged.

8. A segmented combined cold-shrink outdoor terminal insulation structure according to claim 1, characterized in that: The outer wall of the insulator (2) is provided with multi-level umbrella skirts, and the umbrella skirts themselves are integrally molded.

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