Embedded positioning sleeve for electrical installation engineering

Abstract

The utility model provides a pre-embedded positioning sleeve for electrical installation engineering, which belongs to the technical field of electrical installation engineering equipment and is characterized in that a plurality of threaded rotating rods are symmetrically arranged on the radial end face of a sleeve single body, one end, extending into the sleeve single body, of each threaded rotating rod is slidably connected with a telescopic component, and the other end of each telescopic component is connected with a clamping plate; the telescopic assembly comprises a sliding rod; the sliding rod is sleeved with the first elastic piece, one end of the first elastic piece is connected with the threaded rotating rod, and the other end of the first elastic piece is connected with the clamping plate. According to the utility model, cables with different thicknesses can be clamped and fixed, the problem of cable damage caused by cable winding can be prevented, the cables can be prevented from slipping from the inside of the device, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical installation engineering equipment, in particular to a pre-buried positioning sleeve for electrical installation engineering. Background Art

[0002] The statements in this section merely provide background technology related to the present invention and do not necessarily constitute prior art.

[0003] Before the electrical equipment installation project begins, it is necessary to plan and design the cable path, including its transmission path from the power supply to the target location. Pre-buried positioning sleeves of appropriate size and material should be selected to adapt to the required cable diameter and protection requirements. During the construction phase of the building, construction workers embed the pre-buried positioning sleeves into the wall or floor structure according to the design. This can be done before concrete pouring or before wall construction.

[0004] The Chinese utility model patent with application number CN202221672612.1 discloses a pre-buried positioning sleeve for electrical installation engineering. When using the positioning sleeve, by rotating the threaded rod, the threaded rod will make the upper fixing ring and the lower fixing ring fit tightly together through the threaded grooves on the surfaces of the second limit block and the first limit block, which is helpful to prevent the mud and other substances from penetrating into the sleeve after the positioning sleeve is landfilled, thereby improving the use effect of the pre-buried positioning sleeve for electrical installation engineering. The inventor found that the pre-buried positioning sleeve for electrical installation engineering cannot clamp and fix cables of different thicknesses, so the cables may be entangled together inside the device, causing damage. Utility Model Content

[0005] The utility model aims to provide a pre-buried positioning sleeve for electrical installation engineering, which can clamp and fix cables of different thicknesses, so as to solve at least one technical problem existing in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a pre-buried positioning sleeve for electrical installation engineering, comprising:

[0008] A plurality of sleeve units that are detachably connected in sequence;

[0009] A plurality of threaded holes are symmetrically arranged on the radial end surface of each sleeve monomer, and each threaded hole is threadedly connected with a threaded rotating rod; one end of the threaded rotating rod extends into the interior of the sleeve monomer through the threaded hole;

[0010] A blind hole is provided on the axial end surface of one end of the threaded rotating rod extending into the interior of the sleeve body; an axial sliding channel is provided inside the threaded rotating rod; the blind hole is connected to the axial sliding channel;

[0011] A telescopic component is slidably connected in the sliding channel, and the other end of the telescopic component is connected to a clamping plate; the telescopic component includes a sliding rod with one end extending into the axial sliding channel and the other end connected to the clamping plate; and a first elastic member is sleeved on the outside of the sliding rod, one end of which is connected to the threaded rotating rod and the other end is connected to the clamping plate.

[0012] Furthermore, among the two mutually connected sleeve monomers, a plurality of snap-fit ​​grooves are evenly arranged on the axial end surface of the tube wall of one of the sleeve monomers, and a plurality of accommodating grooves corresponding to the plurality of snap-fit ​​grooves are arranged on the axial end surface of the tube wall of the other sleeve monomer; a pressing piece is arranged in the accommodating groove, one end of the pressing piece can be inserted into the snap-fit ​​groove, and the other end of the pressing piece can be movably extended to the outside of the tube wall of the other sleeve monomer; a second elastic piece is arranged in the accommodating groove, one end of the second elastic piece is connected to the pressing piece, and the other end of the second elastic piece is connected to the bottom of the accommodating groove.

[0013] Furthermore, the diameter of the blind hole is smaller than the diameter of the axial sliding channel; a slidable baffle is provided in the axial sliding channel, and the sliding rod is fixedly connected to the baffle.

[0014] Furthermore, a butt plate is connected to the axial end surface of the threaded rotating rod extending into the interior of the sleeve body, and the butt plate is provided with a through hole matching the blind hole for the sliding rod to slide through.

[0015] Furthermore, one end of the first elastic member is connected to the abutment plate.

[0016] Furthermore, the engaging groove includes a bayonet opening formed on the tube wall of the sleeve body, and a bayonet cavity which is connected to the bayonet opening and has a width greater than that of the bayonet opening.

[0017] Furthermore, the accommodating groove includes an accommodating cavity and a communicating opening which is connected to the accommodating cavity and has a width matching the width of the bayonet.

[0018] Furthermore, the pressing member includes a first connecting rod and a second connecting rod vertically connected to each other, and the second elastic member is connected to the first connecting rod; a clamping plate is provided at one end of the first connecting rod extending into the clamping cavity; and one end of the second connecting rod can movably extend out of the tube wall of the other sleeve monomer.

[0019] Furthermore, one end of the second connecting rod is connected to a pressing plate after extending out of the tube wall of the other sleeve unit.

[0020] Furthermore, the first elastic member and the second elastic member are both springs.

[0021] The utility model has the following beneficial effects: it can clamp and fix cables of different diameters, thereby preventing the cables from being entangled in the casing and causing damage to the cables, and can prevent the cables from slipping out of the casing, thereby improving the flexibility of use; the casing unit can be installed, assembled and disassembled, and the installation, assembly and disassembly are convenient, and the staff can quickly install and disassemble the pipeline, thereby improving work efficiency.

[0022] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a three-dimensional structural diagram of the embedded positioning sleeve for electrical installation engineering described in an embodiment of the utility model.

[0025] Figure 2 It is a longitudinal structural sectional view of the embedded positioning sleeve for electrical installation engineering described in an embodiment of the utility model.

[0026] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0027] Figure 4 It is a longitudinal sectional structural diagram of a threaded rotating rod of a pre-buried positioning sleeve for an electrical installation project according to an embodiment of the utility model.

[0028] Figure 5 This is a structural diagram of the connection between two adjacent sleeve monomers of the pre-buried positioning sleeve of the electrical installation project described in an embodiment of the utility model.

[0029] Among them: 1-sleeve unit; 2-threaded rotating rod; 3-blind hole; 4-axial sliding channel; 5-clamping plate; 6-sliding rod; 7-first elastic member; 8-second elastic member; 9-baffle; 10-resist plate; 11-through hole; 12-bayonet; 13-card cavity; 14-accommodating cavity; 15-connecting port; 16-first connecting rod; 17-second connecting rod; 18-card plate; 19-through port; 20-pressing plate. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below by the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0031] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which the present invention belongs.

[0032] It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have a meaning consistent with that in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless as defined herein.

[0033] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or groups thereof.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0035] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the description of this specification, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present technology.

[0037] Unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0038] To facilitate the understanding of the present invention, the present invention is further explained below with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute a limitation on the embodiments of the present invention.

[0039] Those skilled in the art should understand that the drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily necessary for implementing the present invention.

[0040] like Figures 1 to 5 As shown, the pre-buried positioning sleeve for electrical installation engineering provided by the embodiment of the utility model includes: a plurality of sleeve monomers 1 that can be detachably connected in sequence, which are arranged into a plurality of sleeve monomers 1, which is convenient for transportation and carrying. When in actual use, the staff can connect the plurality of sleeve monomers 1 to each other for use, which is convenient and quick. Among them, a plurality of threaded holes (not shown in the figure) are symmetrically arranged on the radial end face of each of the sleeve monomers 1, and the plurality of threaded holes are located in the same cross section. Figure 1 As shown, in this embodiment, two sleeve monomers 1 are detachably connected to form a sleeve as a whole.

[0041] In this embodiment, each sleeve unit 1 has 4 threaded holes in the same cross section. In a specific application, 3 or 5 or more threaded holes may be provided, and the threaded holes are evenly distributed around the central axis of the sleeve unit in the same cross section to ensure uniform clamping of the cable.

[0042] Each of the threaded holes is threadedly connected to a threaded rotating rod 2, one end of the threaded rotating rod 2 extends into the interior of the sleeve monomer 1 through the threaded hole, and screwing the threaded rotating rod 2 can achieve its extension and retraction relative to the sleeve monomer 1. For example, rotating the threaded rotating rod 2 clockwise can extend the threaded rotating rod 2 outward, and conversely, rotating counterclockwise can retract the threaded rotating rod 2 into the interior of the sleeve monomer 1.

[0043] A blind hole 3 is provided on the axial end surface of one end of the threaded rotating rod 2 extending into the interior of the sleeve monomer 1; an axial sliding channel 4 is provided in the threaded rotating rod 2; the blind hole 3 is connected to the axial sliding channel 4; a telescopic component is slidably connected in the sliding channel 4, and a clamping plate 5 is connected to the other end of the telescopic component. Specifically, the telescopic component includes a sliding rod 6 with one end extending into the axial sliding channel 4 and the other end connected to the clamping plate 5; and a first elastic member 7 sleeved on the outside of the sliding rod 6, with one end connected to the threaded rotating rod 2 and the other end connected to the clamping plate 5. In specific use, the first elastic member 7 is compressed or restored by screwing the threaded rotating rod 2, and the first elastic member 7 can be a spring. For example, when it rotates counterclockwise, it retracts and extends into the interior of the sleeve monomer 1 to squeeze the first elastic member 7. When the first elastic member 7 is squeezed, it pushes the clamping plate 5 to clamp the cable. The first elastic member 7 and the sliding rod 6 slide in the axial sliding channel 4 to achieve flexible clamping of the cable by the clamping plate 5, thus avoiding the extrusion damage to the cable caused by direct rigid clamping. Conversely, by rotating the threaded rotating rod 2 clockwise, the threaded rotating rod 2 can be extended outward, the first elastic member 7 is restored, and the clamping plate 5 releases the cable.

[0044] In order to realize the detachable connection of two sleeve monomers 1, in the two mutually connected sleeve monomers 1, a plurality of snap-fit ​​grooves are evenly arranged on the axial end face of the tube wall of one sleeve monomer 1, and a plurality of receiving grooves corresponding to the plurality of snap-fit ​​grooves are arranged on the axial end face of the tube wall of the other sleeve monomer 1; a pressing piece is arranged in the receiving groove, one end of the pressing piece can be inserted into the snap-fit ​​groove, and the other end of the pressing piece can be movably extended out of the tube wall of the other sleeve monomer 1; a second elastic piece 8 is arranged in the receiving groove, one end of the second elastic piece 8 is connected to the pressing piece, and the other end of the second elastic piece 8 is connected to the bottom of the receiving groove. For example, the second elastic piece 8 is a spring. Through the cooperation of the pressing piece, the snap-fit ​​groove, the receiving groove and the second elastic piece 8, the detachable connection between the two sleeve monomers 1 can be realized. For example, when the pressing piece is pressed, the second elastic piece 8 is compressed, and the pressing piece is disengaged from the snap-fit ​​groove, so as to realize the disengagement or connection between the two sleeve monomers 1.

[0045] Specifically, the engaging groove includes a bayonet 12 provided on the tube wall of the sleeve monomer 1, and a bayonet cavity 13 which is connected to the bayonet 12 and has a width greater than that of the bayonet 12. The accommodating groove includes an accommodating cavity 14, and a connecting port 15 which is connected to the accommodating cavity 14 and has a width matching that of the bayonet 12. The pressing member includes a first connecting rod 16 and a second connecting rod 17 which are vertically connected to each other, and the second elastic member 8 is connected to the first connecting rod 16; a clamping plate 18 is provided at one end of the first connecting rod 16 which extends into the bayonet cavity 13; and one end of the second connecting rod 17 can movably extend out of a through port 19 of the tube wall of the other sleeve monomer 1.

[0046] For example, when it is necessary to disassemble and separate the two sleeve monomers 1, first press the end of the second connecting rod 17, and the second connecting rod 17 moves along the through-hole 19 into the accommodating cavity 14, and the first connecting rod 16 squeezes the second elastic member 8 accordingly. The second elastic member 8 is compressed, and the first connecting rod 16 moves toward the inside of the sleeve. The clamping plate 18 at the end of the first connecting rod 16 is disengaged from the clamping cavity 13. After the clamping plate 18 is disengaged from the clamping cavity 13, the first connecting rod 16 is pulled out of the clamping groove to achieve the separation between the two sleeve monomers 1. For example, when it is necessary to connect two sleeve monomers 1, first press the end of the second connecting rod 17, the second connecting rod 17 moves along the through opening 19 into the accommodating cavity 14, and the first connecting rod 16 squeezes the second elastic member 8 accordingly. The second elastic member 8 is compressed, and the first connecting rod 16 moves toward the inner direction of the sleeve, pressing the end of the second connecting rod 17 until the clamping plate 18 at the end of the first connecting rod 16 extends into the clamping cavity 13 through the clamping port 12, and then release the second connecting rod 17, the second elastic member 8 recovers, and the first connecting rod 16 is pushed outward, and the clamping plate 18 engages with the clamping cavity 13 to realize the connection between the two sleeve monomers 1.

[0047] In order to facilitate pressing the second connecting rod 17 , a pressing plate 20 is connected to one end of the second connecting rod 17 after it extends out of the tube wall of the other sleeve monomer 1 .

[0048] In order to prevent the sliding rod 6 from being separated from the threaded rotating rod 2, the diameter of the blind hole 3 is set to be smaller than the diameter of the axial sliding channel 4; the diameter of the sliding rod 6 is slightly smaller than the diameter of the blind hole 3 to ensure that it can slide through the blind hole 3, and a slidable baffle 9 is provided in the axial sliding channel 4, and the sliding rod 6 is fixedly connected to the baffle 9. The diameter of the baffle 9 is smaller than the diameter of the axial sliding channel 4 and larger than the diameter of the blind hole 3, ensuring that the baffle 9 can slide in the axial sliding channel 4 and will not be separated from the axial sliding channel 4.

[0049] In order to ensure stable and reliable compression of the first elastic member 7, a butt plate 10 is connected to the axial end surface of the threaded rotating rod 2 extending into the interior of the sleeve body 1, and the butt plate 10 is provided with a through hole 11 matching the blind hole 3 for the sliding rod 6 to slide through. The diameter of the butt plate 10 is larger than the diameter of the threaded rotating rod 2 and larger than the diameter of the first elastic member 7, and one end of the first elastic member 7 is connected to the butt plate 10.

[0050] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution disclosed in the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work should be included in the scope of protection of the utility model.

Claims

1. A pre-buried positioning sleeve for electrical installation engineering, characterized in that: include: A plurality of sleeve units (1) that are detachably connected in sequence; A plurality of threaded holes are symmetrically arranged on the radial end surface of each sleeve monomer (1), and each threaded hole is threadedly connected to a threaded rotating rod (2); one end of the threaded rotating rod (2) extends into the interior of the sleeve monomer (1) through the threaded hole; A blind hole (3) is provided on the axial end surface of one end of the threaded rotating rod (2) extending into the interior of the sleeve unit (1); an axial sliding channel (4) is provided inside the threaded rotating rod (2); the blind hole (3) is connected to the axial sliding channel (4); A telescopic component is slidably connected in the sliding channel (4), and the other end of the telescopic component is connected to a clamping plate (5); The telescopic assembly comprises a sliding rod (6) having one end extending into the axial sliding channel (4) and the other end connected to the clamping plate (5); and a first elastic member (7) sleeved on the outside of the sliding rod (6), having one end connected to the threaded rotating rod (2) and the other end connected to the clamping plate (5).

2. The pre-buried positioning sleeve for electrical installation engineering according to claim 1, characterized in that: In the two mutually connected sleeve monomers (1), a plurality of snap-fit ​​grooves are evenly arranged on the axial end surface of the tube wall of one sleeve monomer (1), and a plurality of receiving grooves corresponding to the plurality of snap-fit ​​grooves are arranged on the axial end surface of the tube wall of the other sleeve monomer (1); a pressing piece is arranged in the receiving groove, one end of the pressing piece can be snapped into the snap-fit ​​groove, and the other end of the pressing piece can be movably extended out of the tube wall of the other sleeve monomer (1); a second elastic piece (8) is arranged in the receiving groove, one end of the second elastic piece (8) is connected to the pressing piece, and the other end of the second elastic piece (8) is connected to the bottom of the receiving groove.

3. The pre-buried positioning sleeve for electrical installation engineering according to claim 2, characterized in that: The diameter of the blind hole (3) is smaller than the diameter of the axial sliding channel (4); a slidable baffle (9) is provided in the axial sliding channel (4), and the sliding rod (6) is fixedly connected to the baffle (9).

4. The pre-buried positioning sleeve for electrical installation engineering according to claim 3, characterized in that: An abutment plate (10) is connected to the axial end surface of the threaded rotating rod (2) extending into the interior of the sleeve unit (1), and the abutment plate (10) is provided with a through hole (11) matching the blind hole (3) and allowing the sliding rod (6) to slide through.

5. The pre-buried positioning sleeve for electrical installation engineering according to claim 4, characterized in that: One end of the first elastic member (7) is connected to the abutment plate (10).

6. The pre-buried positioning sleeve for electrical installation engineering according to claim 2, characterized in that: The engaging groove comprises a snap-in opening (12) provided on the tube wall of the sleeve unit (1), and a snap-in cavity (13) which is in communication with the snap-in opening (12) and has a width greater than that of the snap-in opening (12).

7. The pre-buried positioning sleeve for electrical installation engineering according to claim 6, characterized in that: The accommodating groove comprises an accommodating cavity (14), and a communicating opening (15) which is in communication with the accommodating cavity (14) and has a width matching that of the bayonet (12).

8. The pre-buried positioning sleeve for electrical installation engineering according to claim 7, characterized in that: The pressing member comprises a first connecting rod (16) and a second connecting rod (17) which are vertically connected to each other, and the second elastic member (8) is connected to the first connecting rod (16); one end of the first connecting rod (16) extending into the clamping cavity (13) is provided with a clamping plate (18); one end of the second connecting rod (17) is movably extended out of a through hole (19) in the tube wall of the other sleeve monomer (1).

9. The pre-buried positioning sleeve for electrical installation engineering according to claim 8, characterized in that: One end of the second connecting rod (17) extends out of the tube wall of the other sleeve unit (1) and is connected to a pressing plate (20).

10. The pre-buried positioning sleeve for electrical installation engineering according to any one of claims 2 to 9, characterized in that: The first elastic member (7) and the second elastic member (8) are both springs.

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