A cable head positioning and pressing device for ring network cabinet

Abstract

The utility model discloses a cable head positioning and pressing device for ring net cabinet, including the fixed setting ring net cabinet in mounting panel and setting the multiple cable assembly and multiple positioning and pressing mechanism of mounting panel one side, each positioning and pressing mechanism one side is provided with locking mechanism respectively, and positioning and pressing mechanism includes the extruding block setting in mounting panel one side, and the one end fixed connection of extruding block towards mounting panel has inserted rod, the utility model discloses the cooperation structure of inserted rod and slot, combines the automatic reset function of big spring, and only needs simple pulling extruding block and slide bar to complete the installation or disassembly of cable connector, when operating, the user only needs to aim the jack of connector at the slot, and after releasing extruding block, big spring will drive inserted rod to insert jack and press tightly connector automatically, and the whole process does not need tool auxiliary, compared with the step that traditional mode needs to tighten bolt one by one, and the device will shorten the installation time.

Description

Technical Field

[0001] This utility model relates to the field of cable head fixing technology, specifically a cable head positioning and clamping device for ring main units. Background Technology

[0002] In the patent application with publication number CN222915521U, an operating rod and a fastening ring are included. The operating rod and the fastening ring are detachably connected. Each end of the fastening ring forms a first connecting plate with a first connecting hole. Each end of the operating rod forms a second connecting plate with a second connecting hole. The first connecting hole and the second connecting hole are detachably connected by fasteners. The fasteners detachably connect the fastening ring and the operating rod, making the operation simple and allowing one person to complete the task, saving manpower and time and improving installation efficiency.

[0003] In the aforementioned patent, the installation and disassembly of some ring main unit cable heads require the removal of installation bolts. The bolt fixing method is inefficient, resulting in time-consuming and labor-intensive cable installation and maintenance. Insufficient or loose clamping force may cause poor contact, local heating, or even arcing failure, increasing the risk of power outages. The connection stability is poor under long-term vibration, which accelerates equipment aging, threatens the safe operation of the power grid, and increases maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a cable head positioning and clamping device for ring main units to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable head positioning and clamping device for a ring main unit, comprising a mounting plate fixedly installed inside the ring main unit and multiple sets of cable assemblies and multiple sets of positioning and clamping mechanisms installed on one side of the mounting plate. Each set of positioning and clamping mechanisms is provided with a locking mechanism on one side. The positioning and clamping mechanism includes a pressing block installed on one side of the mounting plate. A plug rod is fixedly connected to one end of the pressing block facing the mounting plate. A fixing plate is fixedly connected to one side of the pressing block. A sliding rod is fixedly connected to one end of the fixing plate facing the mounting plate. A connecting plate is fixedly installed on the outer side of the sliding rod away from the pressing block.

[0006] Furthermore, the pressing block has a locking groove on the side facing the locking mechanism, and a large spring is fixedly connected to the connecting plate on the side facing the pressing block.

[0007] Furthermore, the locking mechanism includes a slide rod mounted on the mounting plate, a limit plate fixedly connected to the lower end of the slide rod, a small spring fixedly connected to one side of the slide rod, and a locking block corresponding to the locking groove fixedly connected to one end of the slide rod.

[0008] Furthermore, the cable assembly includes a cable and a connector fixedly disposed at one end of the cable, the connector having a socket corresponding to the plug.

[0009] Furthermore, the mounting plate is provided with multiple sets of mounting components corresponding to the positioning and clamping mechanism and the locking mechanism.

[0010] Furthermore, the mounting assembly includes a slot formed on the mounting plate, a connecting post fixedly connected to one side of the slot, a sliding groove corresponding to the sliding rod formed on the mounting plate, and a connecting cavity formed on one side of the sliding groove.

[0011] Furthermore, the mounting assembly also includes a sliding cavity on the mounting plate corresponding to the slide rod, and a limiting groove is formed on one side of the sliding cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the cable head positioning and clamping device for ring main units is reasonable and has the following advantages: (1) The mounting plate is equipped with mounting components. The mounting plate is equipped with a positioning and clamping mechanism and a locking mechanism on one side. The positioning and clamping device completely eliminates the cumbersome process of traditional bolt fixing through innovative mechanical linkage design. Specifically, it adopts the cooperation structure of the plug rod and the slot, combined with the automatic reset function of the large spring. The installation or removal of the cable connector can be completed simply by pulling the squeezing block and the sliding rod. During operation, the user only needs to align the plug hole of the connector with the slot. After releasing the squeezing block, the large spring will drive the plug rod to automatically insert into the plug hole and clamp the connector. No tools are needed throughout the process. Compared with the traditional method of tightening bolts one by one, this device shortens the installation time. It is especially suitable for ring network cabinet scenarios that require frequent replacement or maintenance of cables. In addition, the precise cooperation between the sliding rod and the sliding groove ensures the linear movement of the squeezing block, avoids the error of manual alignment, and further improves the accuracy and consistency of installation. This efficient design not only reduces labor costs, but also reduces the risk of loose connection due to improper operation, and significantly improves overall reliability. (2) The device achieves double fixation of the cable connector through the synergistic action of the locking mechanism and the positioning and pressing mechanism. When the pressing block presses the connector, the locking block will be pushed into the locking groove by the small spring 44 to form a mechanical interlock. During this process, the cooperation between the limiting plate and the limiting groove prevents the slide rod from deviating and ensures that the locking block is accurately locked. This design effectively solves the problem of the clamping force attenuation caused by vibration or thermal expansion and contraction in traditional crimping devices. At the same time, the inclined surface design of the locking block allows the pressing block to automatically trigger the locking during the pressing process without additional operation, which simplifies the process and avoids the safety hazard of human error in locking. In addition, the close contact between the plug and the connecting post ensures the conductivity continuity of the cable, which fully meets the high standard requirements of power equipment. This double protection mechanism is particularly suitable for harsh environments with high vibration or large temperature difference, which significantly reduces the risk of power outage or electric arc accident caused by loose connection. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting plate of this utility model; Figure 3 This is a schematic diagram of the installation component of this utility model; Figure 4 This is a schematic diagram of the cable assembly of this utility model; Figure 5 This is a schematic diagram of the positioning and clamping mechanism of this utility model.

[0014] In the diagram: 1. Mounting plate; 11. Mounting assembly; 111. Slot; 112. Connecting post; 113. Sliding groove; 114. Connecting cavity; 115. Sliding cavity; 116. Limiting groove; 2. Cable assembly; 3. Positioning and clamping mechanism; 31. Pressing block; 32. Insert rod; 33. Fixing plate; 34. Sliding rod; 35. Connecting plate; 36. Large spring; 37. Locking groove; 4. Locking mechanism; 41. Sliding rod; 42. Limiting plate; 43. Locking block; 44. Small spring. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 The present invention provides a technical solution as follows: Example 1: A cable head positioning and clamping device for a ring main unit includes a mounting plate 1 fixedly installed inside the ring main unit and multiple sets of cable assemblies 2 and multiple sets of positioning and clamping mechanisms 3 installed on one side of the mounting plate 1. Each set of positioning and clamping mechanisms 3 is provided with a locking mechanism 4 on one side. The positioning and clamping mechanism 3 includes a pressing block 31 installed on one side of the mounting plate 1. A plug rod 32 is fixedly connected to one end of the pressing block 31 facing the mounting plate 1. A fixing plate 33 is fixedly connected to one side of the pressing block 31. A sliding rod 34 is fixedly connected to one end of the fixing plate 33 facing the mounting plate 1. A connecting plate 35 is fixedly installed on the outer side of the sliding rod 34 away from the pressing block 31.

[0017] The pressing block 31 has a locking groove 37 on the side facing the locking mechanism 4, and a large spring 36 is fixedly connected to the side of the connecting plate 35 facing the pressing block 31.

[0018] The locking mechanism 4 includes a slide bar 41 mounted on the mounting plate 1. A limit plate 42 is fixedly connected to the lower end of the slide bar 41. A small spring 44 is fixedly connected to one side of the slide bar 41. A locking block 43 corresponding to the locking groove 37 is fixedly connected to one end of the slide bar 41.

[0019] The cable assembly 2 includes a cable and a connector fixedly installed at one end of the cable. The connector has a socket corresponding to the plug 32.

[0020] The mounting plate 1 has multiple sets of mounting components 11 corresponding to the positioning and clamping mechanism 3 and the locking mechanism 4.

[0021] The mounting assembly 11 includes a slot 111 formed on the mounting plate 1 and the insertion rod 32. A connecting post 112 is fixedly connected to one side of the slot 111. A sliding groove 113 corresponding to the sliding rod 34 is formed on the mounting plate 1. A connecting cavity 114 corresponding to the connecting plate 35 is formed on one side of the sliding groove 113.

[0022] The mounting assembly 11 also includes a sliding cavity 115 on the mounting plate 1 corresponding to the slide rod 41, and a limiting groove 116 is formed on one side inside the sliding cavity 115.

[0023] Working principle: In use, pull the slide bar 41 away from the pressing block 31, then pull the pressing block 31 away from the mounting plate 1. Then release the slide bar 41. Under the push of the small spring 44, the slide bar 41 returns to its original position. The pressing block 31 drives the insertion rod 32 to disengage from the slot 111. At this time, insert the connector on the cable assembly 2 between the insertion rod 32 and the mounting plate 1, aligning the through hole on the connector with the slot 111. Release the pressing block 31, and the large spring 36 pushes the connecting plate 35 to move and return to its original position. The connecting plate 35 drives the sliding rod 34 to slide and reset within the sliding groove 113. The sliding rod 34 drives the pressing block 31 to move and reset via the fixing plate 33, causing the pressing block 31 to move towards the mounting plate 1. The pressing block 31 drives the insertion rod 32 to insert into the through hole of the connector head, and the insertion rod 32 contacts the connecting post 112. At this time, the cable assembly 2 is electrically connected to the connecting post 112 through the insertion rod 32, which can quickly fix the cable assembly 2 on the mounting plate 1 without the need for bolts or other tools, thus improving the fixing efficiency. During the process of pressing the connector on the cable assembly 2 by the compression block 31, the compression block 31 presses against the inclined surface of the locking block 43, pushing the locking block 43 away from the compression block 31. The locking block 43 drives the slide rod 41 to slide in the slide cavity 115, and the limiting plate 42 slides in the limiting groove 116 to prevent the slide rod 41 from getting stuck when sliding. When the compression block 31 completely presses against the connector on the cable assembly 2, the locking groove 37 is parallel to the position of the locking block 43. The small spring 44 pushes the slide rod 41 to slide and reset in the slide cavity 115. The slide rod 41 drives the locking block 43 to insert into the locking groove 37, locking the compression block 31 and preventing gaps between the compression block 31 and the cable assembly 2, which would result in insufficient compression of the connector of the cable assembly 2.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cable head positioning and clamping device for a ring main unit, comprising a mounting plate (1) fixedly installed inside the ring main unit and multiple sets of cable assemblies (2) and multiple sets of positioning and clamping mechanisms (3) arranged on one side of the mounting plate (1), wherein each set of positioning and clamping mechanisms (3) is provided with a locking mechanism (4) on one side, characterized in that: The positioning and pressing mechanism (3) includes a pressing block (31) disposed on one side of the mounting plate (1). A plug rod (32) is fixedly connected to one end of the pressing block (31) facing the mounting plate (1). A fixing plate (33) is fixedly connected to one side of the pressing block (31). A sliding rod (34) is fixedly connected to one end of the fixing plate (33) facing the mounting plate (1). A connecting plate (35) is fixedly disposed on the outer side of the sliding rod (34) away from the pressing block (31).

2. The cable head positioning and clamping device for a ring main unit according to claim 1, characterized in that: The pressing block (31) has a locking groove (37) on the side facing the locking mechanism (4), and a large spring (36) is fixedly connected to the side of the connecting plate (35) facing the pressing block (31).

3. The cable head positioning and clamping device for a ring main unit according to claim 1, characterized in that: The locking mechanism (4) includes a slide rod (41) mounted on the mounting plate (1), a limit plate (42) is fixedly connected to the lower end of the slide rod (41), a small spring (44) is fixedly connected to one side of the slide rod (41), and a locking block (43) corresponding to the locking groove (37) is fixedly connected to one end of the slide rod (41).

4. The cable head positioning and clamping device for a ring main unit according to claim 1, characterized in that: The cable assembly (2) includes a cable and a connector fixedly installed at one end of the cable, wherein the connector has a socket corresponding to the plug (32).

5. The cable head positioning and clamping device for a ring main unit according to claim 1, characterized in that: The mounting plate (1) has multiple sets of mounting components (11), and the mounting components (11) correspond one-to-one with the positioning and pressing mechanism (3) and the locking mechanism (4).

6. The cable head positioning and clamping device for a ring main unit according to claim 5, characterized in that: The mounting assembly (11) includes a slot (111) opened on the mounting plate (1), a connecting post (112) is fixedly connected to one side inside the slot (111), a sliding groove (113) corresponding to the sliding rod (34) is opened on the mounting plate (1), and a connecting cavity (114) is opened on one side of the sliding groove (113).

7. A cable head positioning and clamping device for a ring main unit according to claim 5, characterized in that: The mounting assembly (11) further includes a sliding cavity (115) on the mounting plate (1) corresponding to the slide rod (41), and a limiting groove (116) is provided on one side inside the sliding cavity (115).

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