Mounting device for cable and prefabricated cable terminal

Abstract

The utility model relates to an installation device for a cable and a prefabricated cable terminal. The installation device comprises a rotation driving piece, a traction rod, a support and a stop block arranged on the support. The stop block is provided with a stop hole, and the aperture of the stop hole is smaller than the diameter of the prefabricated cable terminal. The first end of the traction rod penetrates through the blocking hole to be connected with the cable to be installed, and the second end is connected with the rotation driving piece. The utility model provides the installation device for the cable and the prefabricated cable terminal, the installation of the cable and the prefabricated cable terminal is assisted, the installation efficiency is improved, and the damage to the cable and the prefabricated cable terminal is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power installation equipment technology, and in particular to an installation device for cables and prefabricated cable terminals. Background Technology

[0002] Currently, in the assembly process of prefabricated cable terminals, insulating materials with elastic properties are commonly used as raw materials. Interfacial pressure is generated through interference fit with the cable to maintain insulation strength. This method is widely used in power and telecommunications fields due to its mature technology and reliable installation. However, this interference fit method has significant drawbacks. First, the high interfacial pressure required for interference fit results in a tight bond between the terminal and the cable during assembly, requiring manual pulling and extremely high operating force to complete the installation. Even with lubricant applied to the terminal surface, manual pulling remains difficult, and it is hard to guarantee installation and disassembly accuracy. Second, after installation, the interfacial pressure completely expels air from the prefabricated terminal and the cable, making the bond even stronger. This makes subsequent disassembly almost impossible, posing a significant challenge to equipment maintenance and replacement. Currently, common solutions include cutting the entire prefabricated terminal along with the cable, or cutting the terminal in half to retain the cable. This compromises the integrity of the terminal and results in a significant waste of materials and resources. Furthermore, due to the lack of effective auxiliary measures during the disassembly process, manual disassembly and assembly can easily cause irreversible damage to the terminals and cables, increasing the system's maintenance costs.

[0003] Therefore, how to provide a device to assist in the installation of cables and prefabricated cable terminals, improve installation efficiency, and reduce damage to cables and prefabricated cable terminals is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this utility model provides an installation device for cables and prefabricated cable terminals, comprising: a rotary drive component, a traction rod, a bracket, and a blocking block disposed on the bracket;

[0005] The blocking block is provided with blocking holes, the diameter of which is smaller than the diameter of the prefabricated cable terminal.

[0006] The first end of the traction rod passes through the blocking hole and connects to the cable to be installed, while the second end connects to the rotary drive component.

[0007] Furthermore, the rotary drive includes: a lead screw, and a first lead screw nut and a second lead screw nut spaced apart on the bracket;

[0008] The first end of the lead screw passes through the first lead screw nut and the second lead screw nut, and is connected to the traction rod.

[0009] Furthermore, the rotary drive also includes a rotary handwheel disposed at the second end of the lead screw;

[0010] The rotating handwheel drives the lead screw, traction rod, and cable to be installed to rotate forward.

[0011] Furthermore, the first end of the traction rod is threaded and screwed to the cable to be installed.

[0012] Furthermore, the rotary drive includes a slider disposed at one end;

[0013] The slider has symmetrically arranged lifting rings on both sides;

[0014] The second end of the traction rod is equipped with a connecting ring, which allows for detachable connection with the symmetrically arranged lifting rings on both sides of the slider.

[0015] Furthermore, the installation device for cables and prefabricated cable terminals also includes connectors;

[0016] The connector is movably mounted on one side of the prefabricated cable terminal, with a central hole for accommodating the cable and abutting against the through hole of the prefabricated cable terminal.

[0017] A through hole is provided, and hanging rings are symmetrically arranged on both sides, which are detachably connected to the lifting rings on the slider through the hanging rings;

[0018] The blocking block is detachably mounted on the bracket.

[0019] Furthermore, the installation device for cables and prefabricated cable terminals also includes: a detachable cable clamp mounted on the bracket;

[0020] The cable clamp has a central fixing hole for securing the cable.

[0021] Furthermore, the cable fixing clamp includes: a first clamping piece and a second clamping piece;

[0022] The first clip is detachably mounted on the bracket and has a first semi-circular hole at the top;

[0023] The second clip is detachably mounted on the first clip, and has a second semicircular hole at the bottom that corresponds to the first semicircular hole.

[0024] The first and second semicircular holes combine to form a fixing hole.

[0025] Furthermore, an opening structure is provided at the top of the blocking hole; the width of the opening structure is greater than the maximum width of the traction rod.

[0026] Furthermore, the rotation axis of the rotary drive, the central axis of the traction rod, the central axis of the cable to be installed, and the central axis of the prefabricated cable terminal are all on the same straight line.

[0027] This embodiment provides an installation device for cables and prefabricated cable terminals. In use, the first end of a traction rod passes through a blocking hole and connects to the cable to be installed; the second end connects to a rotary drive component. When the rotary drive component rotates, the traction rod rotates forward under its drive, pulling the cable and causing it to rotate and advance, inserting into the prefabricated cable terminal. A blocking hole, smaller in diameter than the prefabricated cable terminal, ensures the prefabricated cable terminal is fixed in front of the blocking block during installation, preventing movement. On one hand, because the rotary drive component drives the traction rod and cable to rotate forward, the continuity and stability of the rotational motion reduce the repeated adjustments and pauses required in traditional manual insertion methods, alleviating the physical burden on construction workers, reducing labor intensity, and improving installation efficiency. On the other hand, the rotational insertion method makes the contact between the cable and the terminal tighter, more uniform, and more accurate, reducing air gaps and uneven contact, improving connection reliability and electrical performance, and also increasing installation accuracy. Furthermore, due to the accuracy and efficiency of the rotary insertion installation method, damage to cables and prefabricated cable terminals caused by traditional manual insertion and interference fit is greatly reduced. It is worth noting that the rotary drive can be driven manually, or by hydraulic, pneumatic, electric, or motor-driven mechanisms. In summary, this invention provides an installation device for cables and prefabricated cable terminals, assisting in the installation of cables and prefabricated cable terminals, improving installation efficiency, and reducing damage to cables and prefabricated cable terminals. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. In the drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0029] Figure 1 This is a schematic diagram of an embodiment of an installation device for cables and prefabricated cable terminals according to the present invention.

[0030] Figure 2 This is a top view of an embodiment of an installation device for cables and prefabricated cable terminals according to the present invention.

[0031] Figure 3 This is a schematic diagram of another embodiment of the installation device for cables and prefabricated cable terminals according to the present invention. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0034] It should also be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," "S1," "S2," "step one," "step two," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance, or implicitly indicating the number of technical features indicated or the execution order of the method. Those skilled in the art will understand that anything that does not violate the essential points of the utility model within the scope of its inventive concept should be included within the protection scope of this utility model.

[0035] This utility model provides an installation device for cables and prefabricated cable terminals, see reference. Figure 1 and Figure 2 It includes: a rotary drive component 1, a traction rod 2, a bracket 3, and a blocking block 4 mounted on the bracket 3;

[0036] The blocking block 1 is provided with a blocking hole, the diameter of which is smaller than the diameter of the prefabricated cable terminal 5;

[0037] The first end of the traction rod 2 passes through the blocking hole and is connected to the cable 6 to be installed, and the second end is connected to the rotary drive component 1.

[0038] This embodiment provides an installation device for cables and prefabricated cable terminals. In use, the first end of a traction rod passes through a blocking hole and connects to the cable to be installed; the second end connects to a rotary drive component. When the rotary drive component rotates, the traction rod rotates forward under its drive, pulling the cable and causing it to rotate and advance, inserting into the prefabricated cable terminal. A blocking hole, smaller in diameter than the prefabricated cable terminal, ensures the prefabricated cable terminal is fixed in front of the blocking block during installation, preventing movement. On one hand, because the rotary drive component drives the traction rod and cable to rotate forward, the continuity and stability of the rotational motion reduce the repeated adjustments and pauses required in traditional manual insertion methods, alleviating the physical burden on construction workers, reducing labor intensity, and improving installation efficiency. On the other hand, the rotational insertion method makes the contact between the cable and the terminal tighter, more uniform, and more accurate, reducing air gaps and uneven contact, improving connection reliability and electrical performance, and also increasing installation accuracy. Furthermore, due to the accuracy and efficiency of the rotary insertion installation method, damage to cables and prefabricated cable terminals is significantly reduced compared to traditional manual insertion and interference fit assembly. It is worth noting that the rotary drive can be driven manually, or by hydraulic, pneumatic, electric, or motor-driven rotation. Understandably, this device can perform the reverse operation of installation by rotating the rotary drive in the other direction, thus enabling the disassembly of cables and prefabricated cable terminals. In summary, this utility model provides an installation device for cables and prefabricated cable terminals, assisting in the installation of cables and prefabricated cable terminals, improving installation efficiency, and reducing damage to cables and prefabricated cable terminals.

[0039] More preferably, refer to Figure 2 The rotary drive component 1 includes: a lead screw 11, and a first lead screw nut 12 and a second lead screw nut 13 spaced apart on the bracket 3;

[0040] The first end of the lead screw 11 passes through the first lead screw nut 12 and the second lead screw nut 13 and is connected to the traction rod 2.

[0041] In this embodiment, the first end of the lead screw passes through a first lead screw nut and a second lead screw nut, and is connected to the traction rod. When the lead screw rotates, it moves axially due to the threaded engagement of the nuts, driving the traction rod to move synchronously. Since the movement of the traction rod is along the helical direction of the lead screw, the cable also rotates and advances, eventually being inserted into the prefabricated cable terminal. The high transmission precision of the lead screw and nut engagement ensures a stable trajectory for the traction rod during cable insertion, guaranteeing the coaxiality of the cable and the prefabricated cable terminal, and precisely controlling the tolerance of the cable insertion depth into the prefabricated cable terminal. Simultaneously, the lead screw mechanism provides smooth and controllable movement, avoiding the uneven torque problem in traditional pulling methods, thereby reducing the impact between the cable and the prefabricated cable terminal and significantly lowering the risk of damage.

[0042] More preferably, refer to Figure 1 and Figure 2 The rotary drive component 1 also includes a rotary handwheel 14 disposed at the second end of the lead screw 11;

[0043] Rotating the handwheel 14 drives the lead screw 11, the traction rod, and the cable 6 to be installed to rotate forward.

[0044] In this embodiment, a rotary handwheel is added to the second end of the lead screw, providing a simple and intuitive manual control method. Operators can adjust the cable insertion force and speed via the handwheel, making the installation process more flexible, stable, and easy to operate. The rotary handwheel can be used in conjunction with electric drive or manually in environments without power support, greatly improving the adaptability of the device, making it particularly suitable for on-site construction or emergency repair scenarios.

[0045] Preferably, the first end of the traction rod is threaded and screwed to the cable to be installed. On the one hand, the screwed connection between the traction rod and the cable allows for quick connection and separation, reducing preparation time before installation. It is also suitable for cables of different specifications; simply changing the threaded interface with different pitch or diameter allows for adaptation to various types of cables, improving the versatility of the device. On the other hand, the threaded connection is more secure than traditional clamping or friction fixing methods, ensuring a tight connection between the traction rod and the cable to be installed, preventing loosening or detachment during rotation and improving installation reliability.

[0046] More preferably, refer to Figure 1 and Figure 2 The rotary drive component 1 includes a slider 15 disposed at one end;

[0047] The slider 15 has symmetrical hanging rings 15a on both sides;

[0048] The second end of the traction rod 2 is provided with a connecting ring 2a, which allows for detachable connection to the symmetrically arranged lifting rings on both sides of the slider 15. This allows the traction rod to be quickly separated from or connected to the rotary drive component, simplifying the installation and disassembly process and improving construction efficiency. Optionally, the connection between the connecting ring and the lifting ring can be a rigid connecting bar, a double-ended hook, or a flexible connecting chain or rope. More preferably, the connecting ring and / or the lifting ring are provided with installation notches, allowing for quick connection or disassembly.

[0049] More preferably, refer to Figure 1-3 The installation device for cables and prefabricated cable terminals also includes connectors 8;

[0050] The connector 8 is movably disposed on one side of the prefabricated cable terminal 5, with a centrally located cable 6 accommodating and abutting against the through hole of the prefabricated cable terminal 5.

[0051] A through hole is provided, and hanging rings 81 are symmetrically arranged on both sides. The hanging rings 81 are detachably connected to the lifting rings 15a on the slider 4.

[0052] The blocking block 4 is detachably mounted on the bracket 3.

[0053] In this embodiment, a connector is added to the cable and prefabricated cable terminal installation device. The connector is detachably connected to the slider on the rotary drive component via symmetrically arranged hanging rings. In use, the blocking block and traction rod are first removed, and the slider and connector are then connected. Then, the rotary drive component, through the rotary drive connector, rotates forward, pushing the prefabricated cable terminal off the cable, thus completing the removal of the prefabricated cable terminal from the cable in another way. This adapts to scenarios where one end of the cable is fixed, improving the flexibility of the device. The detachable connection between the hanging ring and the lifting ring further enhances the device's flexibility. When installing the cable and prefabricated cable terminal, the slider and prefabricated cable terminal are removed, the blocking block and traction rod are reinstalled, and the slider and connector are separated. More importantly, the connector uses a rotary pushing method, utilizing the rotational driving force of the rotary drive component and the slider to slowly remove the prefabricated cable terminal from the cable, avoiding excessive localized force and preventing cable damage or terminal deformation that may occur with traditional forced pull-out methods. Optionally, the hanging ring and the lifting ring are connected by a connecting chain, connecting rope, or double-ended elastic hook. More preferably, the diameter of the through hole is larger than the cable diameter but smaller than the diameter of the prefabricated cable terminal; to meet the needs of accommodating the cable and abutting against the prefabricated cable terminal.

[0054] More preferably, the installation device for cables and prefabricated cable terminals further includes: a detachable cable clamp 7 mounted on the bracket 3;

[0055] The cable clamp 7 has a fixing hole in the center to hold the cable 6 in place.

[0056] In this embodiment, because the cable is long and flexible, it is prone to displacement or shaking during the rotation and removal of the prefabricated cable terminal. To address this, a detachable cable clamp is added to the cable and prefabricated cable terminal installation device. The clamp's fixing holes effectively hold the cable in place, providing stable support during disassembly to ensure the cable remains in the correct axial direction, preventing displacement and improving disassembly accuracy.

[0057] More preferably, refer to Figure 1 and Figure 2 The cable fixing clip 7 includes: a first clip 71 and a second clip 72;

[0058] The first clip 71 is detachably mounted on the bracket 3, and has a first semi-circular hole at the top;

[0059] The second clip 72 is detachably mounted on the first clip 71, and has a second semicircular hole at the bottom corresponding to the first semicircular hole.

[0060] The first and second semicircular holes combine to form a fixing hole.

[0061] In this embodiment, the cable clamp employs a combination structure of a first clamp and a second clamp, forming a fixing hole through two semi-circular holes for securing the cable. The first clamp is detachably fixed to the bracket and can be quickly removed when the cable clamp is not needed (e.g., during cable installation). The second clamp is detachably fixed to the first clamp, allowing operators to easily replace the clamps to accommodate cables of different diameters, increasing the compatibility and applicability of the device. More preferably, the first and second clamps are configured with multiple semi-circular holes of different diameters to further accommodate cables of different diameters.

[0062] Preferably, the bottom of the bracket 3 is provided with rollers 8 to improve the mobility of the device. Preferably, the top of the blocking hole is provided with an opening structure; the width of the opening structure is greater than the maximum width of the traction rod 2.

[0063] In this embodiment, the operator can directly insert or remove the traction rod from the top by adding an opening structure at the top of the blocking hole with a width greater than the maximum width of the traction rod, which further simplifies the installation and disassembly process and improves installation efficiency.

[0064] Preferably, the rotation axis of the rotary drive, the central axis of the traction rod, the central axis of the cable to be installed, and the central axis of the prefabricated cable terminal are on the same straight line.

[0065] In this embodiment, the rotation axis of the rotary drive, the central axis of the traction rod, the central axis of the cable to be installed, and the central axis of the prefabricated cable terminal are located on the same straight line. The cable can be inserted into the terminal without obstruction in a straight direction, avoiding unnecessary contact pressure or friction caused by offset. This ensures that the cable and the prefabricated terminal are fully connected, avoids angular errors, and improves installation accuracy.

[0066] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An installation device for a cable and a prefabricated cable termination, characterized in that The utility model relates to a rotary drive device for prefabricated cable terminal, comprising: A rotary drive member, a traction rod, a support and a blocking block arranged on the support; The blocking block is provided with a blocking hole, and the diameter of the blocking hole is smaller than the diameter of the prefabricated cable terminal; The traction rod is connected with the cable to be installed at the first end through the blocking hole, and the second end is connected with the rotary drive member.

2. The installation device of a cable and a preformed cable termination according to claim 1, characterized in that The rotary drive member comprises a lead screw, a first lead screw nut and a second lead screw nut arranged on the support at intervals; The first end of the lead screw is connected with the traction rod through the first lead screw nut and the second lead screw nut.

3. The cable and preformed cable termination installation apparatus of claim 2, wherein, The rotary drive member further comprises a rotating hand wheel arranged at the second end of the lead screw; The rotating hand wheel drives the lead screw, the traction rod and the cable to be installed to rotate forward by rotating.

4. The cable and preformed cable termination installation apparatus of claim 1, wherein, The first end of the traction rod is provided with a thread and is screwed with the cable to be installed.

5. The installation device of a cable and a preformed cable termination according to claim 4, characterized in that The rotary drive member comprises a sliding block arranged at one end; The sliding block is symmetrically provided with lifting rings on both sides; The second end of the traction rod is provided with a connecting ring, and the symmetrically arranged lifting rings on both sides of the sliding block are detachably connected through the connecting ring.

6. The installation device of a cable and a preformed cable termination according to claim 5, characterized in that Further comprising a connecting member; The connecting member is movably arranged on one side of the prefabricated cable terminal and centrally provided with a cable accommodating hole abutting against the through hole of the prefabricated cable terminal; The through hole is symmetrically provided with a hanging ring on both sides, and the hanging ring is detachably connected with the lifting ring on the sliding block through the hanging ring; The blocking block is detachably arranged on the support.

7. The installation device of a cable and a preformed cable termination according to claim 6, characterized in that Further comprising: A cable fixing clamp detachably arranged on the support; The cable fixing clamp is centrally provided with a fixing hole to clamp the cable.

8. The installation device of a cable and a preformed cable termination according to claim 7, characterized in that The cable fixing clamp comprises a first clamp piece and a second clamp piece; The first clamp piece is detachably arranged on the support and provided with a first semicircular hole at the top; The second clamp piece is detachably arranged on the first clamp piece and provided with a second semicircular hole corresponding to the first semicircular hole at the bottom; The first semicircular hole and the second semicircular hole combine to form the fixing hole.

9. The cable and preformed cable termination installation apparatus of claim 1, wherein, The top of the blocking hole is provided with an opening structure; the width of the opening structure is greater than the maximum width of the traction rod.

10. The cable and preformed cable termination installation apparatus of claim 1, wherein, The rotary axis of the rotary drive member, the central axis of the traction rod, the central axis of the cable to be installed and the central axis of the prefabricated cable terminal are on the same straight line.

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