A limiting power fitting for cable laying
By designing the sliding grooves, limiting grooves, through holes, and insulating rubber layers on the main board and sub-board, the problem of complex structure and numerous bolts in existing limiting power fittings is solved, enabling fast and stable cable installation and meeting the high efficiency and safety requirements of power equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU JIELI ELECTRIC-EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Current limited-position power fittings have complex structures, rely on a large number of bolt connections, and are heavy, making it difficult to meet the requirements of modern power engineering for high efficiency, safety, and reliability.
The main board and sub-board feature a precise design with sliding grooves, limiting grooves, and through holes, and are fixed with bolts. The inner sides of the main board and sub-board are equipped with an insulating rubber layer. The hardware is made of flame-retardant ABS plastic and is injection molded in one piece. The nuts are used for secondary positioning to enhance stability.
It enables rapid installation and stable connection, reduces cable wear, meets the fire protection requirements of power equipment, and improves installation efficiency and safety.
Smart Images

Figure CN224289226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable laying, and in particular to a limiting power fitting for laying cables. Background Technology
[0002] In the traditional field of cable laying, the limiting power fittings used often rely on a large number of bolts for connection and fixation. Patent searches revealed that, for example, the utility model patent CN209571805U published by the State Intellectual Property Office discloses a spacer bar, including a body and a clamp. While this solves the cable fixing problem to some extent, the overall structure remains complex, with numerous bolts and heavy weight, making it difficult to meet the demands of modern power engineering for efficiency, safety, and reliability. Utility Model Content
[0003] The purpose of this invention is to provide a high-efficiency cable-limiting electrical fitting for cable installation.
[0004] The purpose of this utility model is achieved as follows: A limiting power fitting for cable laying includes a main board and two sets of sub-boards. The main board has a square structure with limiting grooves at its four corners and a through hole at its center. The main board has a front sliding groove and a back sliding groove on its front and back sides, respectively. One end of the front sliding groove opens at the top of the main board, and one end of the back sliding groove opens at the bottom of the main board. The other ends of the front and back sliding grooves extend to the through hole. The two sets of sub-boards are T-shaped, consisting of a pressure plate and an insertion plate. The pressure plate has sub-board limiting grooves on both sides that match the limiting grooves on the main board. The insertion plate is inserted into and connected to the front and back sliding grooves, respectively. The bottom of the insertion plate has a through hole. The two sets of sub-board through holes are fixedly connected to the through hole on the main board by bolts.
[0005] Preferably, the inner surfaces of both the main board limiting groove and the sub-board limiting groove are provided with an insulating rubber layer.
[0006] Preferably, both the main board and the sub-board are integrally injection molded from flame-retardant ABS plastic, and the through holes of the main board are embedded with metal threaded sleeves.
[0007] Preferably, after the two sets of sub-boards are inserted into the main board, the center of the through hole of the two sets of sub-boards and the center of the through hole of the main board are located on the same axis.
[0008] Preferably, the thickness of the main board is consistent with the thickness of the pressure plate; the opening size between the main board limiting grooves on both sides of the main board is consistent with the opening size between the sub-plate limiting grooves on both sides of the pressure plate.
[0009] Preferably, the outer cut surface of the main board limiting groove is provided with a groove, and the outer cut surface of the sub-board limiting groove is provided with a protrusion. After the pressure plate and the main board are engaged, the protrusion and the groove are embedded and engaged.
[0010] Compared with the prior art, the advantages of this utility model are:
[0011] 1. The main board and sub-board achieve quick alignment and installation through the precise cooperation of sliding grooves, limiting grooves and through holes. The design of inserting the two sets of sub-boards from the top and bottom ends is suitable for multiple scenarios. The bolts are fixed through and fixed, and the nuts are used for secondary limiting to ensure the stability of the connection. The grooves and protrusions of the main board and sub-board are embedded to further prevent the sub-board from moving laterally and enhance the overall structural stability.
[0012] 2. The insulating rubber layer on the inner side of the limiting groove of the main board and the sub-board has elastic buffering and anti-slip properties, which reduces the rigid wear of the cable and helps to fix the cable; the hardware is made of flame-retardant ABS plastic injection molding, which meets the fire protection requirements of power equipment and ensures safe use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a schematic diagram of the back structure of the motherboard of this utility model.
[0015] Among them, 1 main board, 101 main board limiting groove, 1011 groove, 102 main board through hole, 103 front sliding groove, 104 back sliding groove, 2 sub-board, 201 pressure plate, 2011 sub-board limiting groove, 20111 protrusion, 202 insertion plate, 2021 sub-board through hole, 3 metal threaded sleeve. Detailed Implementation
[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0017] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] like Figure 1-2 As shown, a limiting power fitting for cable laying includes a main board 1 and two sets of sub-boards 2. The main board 1 has a square structure, with main board limiting grooves 101 at its four corners and a main board through hole 102 at its center. The main board 1 has a front sliding groove 103 and a back sliding groove 104 on its front and back sides, respectively. One end of the front sliding groove 103 is located at the top of the main board 1, and one end of the back sliding groove 104 is located at the bottom of the main board 1. The other end of 104 extends to the motherboard through hole 102; the two sets of sub-boards 2 are T-shaped, consisting of a pressure plate 201 and an insertion plate 202. The pressure plate 201 has sub-board limiting grooves 2011 on both sides that match the motherboard limiting groove 101. The insertion plate 202 is inserted and connected to the front sliding groove 103 and the back sliding groove 104 respectively. The bottom of the insertion plate 202 has a sub-board through hole 2021. The two sets of sub-board through holes 2021 are fixedly connected to the motherboard through hole 102 by bolts.
[0020] like Figure 1As shown, both the main board limiting groove 101 and the sub-board limiting groove 2011 have an insulating rubber layer (not shown in the figure) on their inner sides, which can enhance the insulation performance of the contact parts and prevent the risk of leakage. At the same time, the elastic buffering effect of the rubber layer can reduce the rigid wear of the cable, and the anti-slip properties of the rubber can help fix the cable and prevent it from shifting due to external forces.
[0021] like Figure 1 As shown, both the main board 1 and the sub-board 2 are integrally injection molded from flame-retardant ABS plastic. The main board through hole 102 is embedded with a metal threaded sleeve 3, which gives the hardware lightweight, high strength and flame-retardant properties (meeting the fire protection requirements of power equipment). The metal threaded sleeve embedded in the main board through hole can enhance the strength and wear resistance of the bolt connection, avoid the plastic material being directly stressed and causing stripping, and improve the reliability of the connection.
[0022] like Figure 1 As shown, after the two sets of sub-boards 2 are inserted into the main board 1, the center of the through hole 2021 of the two sets of sub-boards and the center of the through hole 102 of the main board are located on the same axis, ensuring that the bolts can be installed smoothly. A nut is used for secondary positioning on the other side of the bolt to ensure stability.
[0023] like Figure 1 As shown, the thickness of the main board 1 is consistent with the thickness of the pressure plate 201; the opening size between the main board limiting grooves 101 on both sides of the main board 1 is consistent with the opening size between the secondary board limiting grooves 2011 on both sides of the pressure plate 201; improving the aesthetics and standardization of cable laying.
[0024] like Figure 1 As shown, the main board limiting groove 101 has a groove 1011 on the outer cross surface, and the secondary board limiting groove 2011 has a protrusion 20111 on the outer cross surface. After the pressure plate 201 and the main board 1 are engaged, the protrusion 20111 and the groove 1011 are embedded and engaged, which improves the stability of the overall structure after engagement.
[0025] The working principle of this utility model is explained as follows: When fixing the cable, two sets of sub-plates are inserted from the top and bottom of the main plate respectively: the insertion plate of the sub-plate slides along the front and back slides, the sub-plate limiting grooves on both sides of the pressure plate are aligned with the main plate limiting grooves, and the grooves and protrusions are embedded and locked to ensure that the sub-plates are accurately positioned and will not shift laterally; the cable is placed in the space formed by the main plate and the pressure plate, and the insulating rubber layer provides anti-slip and cushioning protection; the cable is fixed by passing the bolts through the through holes of the sub-plates and the main plate and tightening the nuts.
[0026] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.
Claims
1. A limiting power fitting for cable laying, characterized in that, The system comprises a main board and two sets of sub-boards. The main board has a square structure with main board limiting grooves at its four corners and a main board through hole at its center. The main board has a front sliding groove and a back sliding groove on its front and back sides, respectively. One end of the front sliding groove opens at the top of the main board, and one end of the back sliding groove opens at the bottom of the main board. The other ends of the front and back sliding grooves extend to the main board through hole. The two sets of sub-boards are T-shaped, consisting of a pressure plate and an insertion plate. The pressure plate has sub-board limiting grooves on both sides that match the main board limiting grooves. The insertion plate is inserted into and connected to the front and back sliding grooves, respectively. The bottom of the insertion plate has a sub-board through hole. The two sets of sub-board through holes are fixedly connected to the main board through hole by bolts.
2. A limiting power fitting for cable laying according to claim 1, characterized in that, Both the main board limiting groove and the sub-board limiting groove have an insulating rubber layer on their inner sides.
3. A limiting power fitting for cable laying according to claim 1, characterized in that, Both the main board and the sub-board are integrally injection molded from flame-retardant ABS plastic, and the through holes of the main board are embedded with metal threaded sleeves.
4. A limiting power fitting for cable laying according to claim 1, characterized in that, After the two sets of sub-boards are inserted into the main board, the center of the through hole of the two sets of sub-boards and the center of the through hole of the main board are located on the same axis.
5. A limiting power fitting for cable laying according to claim 1, characterized in that, The thickness of the main board is consistent with the thickness of the pressure plate; the opening size between the main board limiting grooves on both sides of the main board is consistent with the opening size between the sub-plate limiting grooves on both sides of the pressure plate.
6. A limiting power fitting for cable laying according to claim 1, characterized in that, The main board limiting groove has a groove on its outer cross-section, and the secondary board limiting groove has a protrusion on its outer cross-section. After the pressure plate is engaged with the main board, the protrusion and the groove are embedded and engaged.