Precast concrete member cassette
By introducing large-diameter pipe joints and segmented rotating connecting rings into precast concrete component junction boxes, the problem that existing junction boxes cannot accommodate large-diameter wires has been solved, achieving flexible connection and convenient installation.
Patent Information
- Application Number
- CN202520030529.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing precast concrete component junction boxes lack conversion structures to accommodate large-gauge or multi-core wires, and the connection structure is not adjustable, resulting in inconvenient installation.
A precast concrete component box was designed, comprising a cylindrical body with a hollow mounting cavity, equipped with a large-diameter second pipe connector and a conversion plug, and combined with a segmented rotating groove and a closely spaced connecting ring to achieve an adjustable locking function.
It enables flexible wire connections, expands application scenarios, simplifies the adjustment of the position and orientation of the junction box, and improves the convenience and stability of installation.
Smart Images

Figure CN223729402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrical wiring box structure technical field especially a prefabricated concrete component box. BACKGROUND
[0002] The prefabricated concrete component box is mainly used in concrete occasions, and needs to be used in cooperation with a magnet and a non-magnet occasion.
[0003] Cooperating with the magnet: 1. In the case of with or without a cover, the box can be directly attracted to the metal template by the magnet, and the box can be directly poured after being fixed.
[0004] Non-magnetic cooperation 2. The product can be fixed on the wooden template through the bottom screw in the case of with a cover, and then the box and the screw can be separated from the template after removing the template.
[0005] In the prior art, the pipe joint with a uniform specification of 16mm or 20mm is arranged on the box, and considering that the product wiring sometimes needs large-specification or multi-core wires, a 25mm pipe needs to be used, and there is no suitable conversion structure in the existing box product.
[0006] In addition, the connection structure of the round port connection end of the original product body is not adjustable, and the operator is not convenient to rotate and find the position during installation, and is not convenient to fix. UTILITY MODEL CONTENTS
[0007] The utility model solves the technical problems that: in order to overcome the deficiencies in the prior art, provide a prefabricated concrete component box.
[0008] The utility model adopts the technical scheme that: a prefabricated concrete component box, including the body of the box, the body is a cylindrical body, the body is internally provided with a hollow installation cavity, the left and right sides of the bottom of the installation cavity are provided with a pipe joint group in communication therewith, and the upper end of the installation cavity is provided with an upper cover.
[0009] The pipe joint group includes a plurality of first pipe joints arranged in a straight line, at least one second pipe joint is arranged on the body, the inner hole diameter of the second pipe joint is greater than the inner hole diameter of the first pipe joint, a conversion plug is clamped in the second pipe joint through a snap spring assembly, and the inner hole diameter of the conversion plug is smaller than the inner hole diameter of the second pipe joint.
[0010] The inner wall at the upper end of the installation cavity is provided with a segmented rotary groove, the segmented rotary groove is rotatably connected with a connecting ring, and the connecting ring is provided with a dense tooth group.
[0011] Further, the paragraph type rotating groove comprises the tightening section and the suspension section which are arranged in sequence and are spaced according to a circumference.
[0012] Further, the dense tooth group comprises a plurality of dense teeth corresponding to the tightening section and the suspension section, and the connecting ring is locked relative to the body when the dense tooth group rotates into the tightening section.
[0013] By adopting the above technical scheme, when the dense tooth group rotates into the tightening section, the dense tooth is extruded by the tightening section, so that the rotation of the connecting ring is locked, and the operator can lock the connection after rotating to find the position during installation.
[0014] Further, the utility model discloses the hole edge cover is provided with the front end of conversion plug, and the reinforcing rib is arranged between the outer wall of conversion plug and hole edge cover, so that the structure is more stable.
[0015] Further, the utility model discloses the snap spring assembly comprises the snap spring of setting in the second pipe joint inner bottom and the card of setting in the hole edge cover bottom.
[0016] By adopting the above technical scheme, the plug-in structure is convenient and stable through the cooperation of the snap spring and the card, and when disassembling, the card is only needed to be slightly poked to separate from the snap spring, and the conversion plug can be pulled out.
[0017] Further, the inner hole diameter of the first pipe joint is 16mm or 20mm, the inner hole diameter of the second pipe joint is 25mm, and the inner hole diameter of the conversion plug is 16mm or 20mm.
[0018] By adopting the above technical scheme, the second pipe joint with a diameter of 25mm is arranged on the basis of the commonly used pipe joint with a diameter of 16mm or 20mm, so that the temporary conversion is convenient, the connection is more convenient, and the application scene is wider.
[0019] The utility model discloses a prefabricated concrete component dark box adds the big aperture pipe joint with conversion plug in the conventional pipe joint group structure, so that wiring is more flexible, and the application scene is wider. DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments in the application, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.
[0021] Fig. 1 is the overall structure schematic diagram of the utility model;
[0022] Fig. 2 is the assembly explosion structure schematic diagram of the utility model
[0023] Fig. 3 is the cooperation structure schematic diagram of the utility model in the snap spring and the card.
[0024] Marked in the figure: 1. the body, 2. upper cover, 3. first pipe joint, 4. second pipe joint, 5. conversion plug, 6. paragraph type rotary groove, 61. tight section, 62. suspended section, 7. connecting ring, 8. dense teeth group, 9. hole edge cover, 10. reinforcing rib, 11. snap spring, 12. card. DETAILED DESCRIPTION
[0025] To make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the protection scope of the utility model.
[0026] As Figs. 1-3 The utility model discloses a prefabricated concrete component dark box, including the body 1 of dark box, the body 1 is cylindrical, the inside hollow installation cavity of body 1 is set up, the bottom left and right sides of installation cavity are provided with the pipe joint group communicated with it, and the upper end of installation cavity is provided with upper cover 2.
[0027] The pipe joint group includes a plurality of first pipe joints 3 arranged in a line, a second pipe joint 4 is arranged on the body 1, and a conversion plug 5 is clamped in the second pipe joint 4 by a snap spring assembly.
[0028] The inner hole diameter of the first pipe joint 3 is 16mm or 20mm, the inner hole diameter of the second pipe joint 4 is 25mm, and the inner hole diameter of the conversion plug 5 is 16mm or 20mm.
[0029] A paragraph type rotary groove 6 is arranged on the inner wall at the upper end of the installation cavity, a connecting ring 7 is rotatably connected in the paragraph type rotary groove 6, and a dense teeth group 8 is arranged on the connecting ring 7.
[0030] The paragraph type rotary groove 6 includes a tight section 61 and a suspended section 62 arranged in a circle and spaced apart in sequence. The dense teeth group includes a plurality of dense teeth corresponding to the tight section 61 and the suspended section 62. When the dense teeth group is rotated into the tight section 61, the connecting ring 7 is locked relative to the body 1.
[0031] The front end of the conversion plug 5 is provided with a hole edge cover 9, and a reinforcing rib 10 is arranged between the outer wall of the conversion plug 5 and the hole edge cover 9. The snap spring assembly comprises a snap spring 11 arranged at the bottom of the second pipe joint 4 and a card 12 arranged at the bottom of the hole edge cover 9.
[0032] Working principle:
[0033] By increasing the large-diameter pipe joint with the conversion plug, in the normal state, because the inner hole diameter of the conversion plug remains the same as the conventional diameter (for example, 16mm or 20mm as the first pipe joint), it can be directly connected with the conventional pipeline; when it is necessary to connect the large pipeline, the conversion plug is directly pulled out to expose the large inner hole (for example, 25mm) of the second pipe joint. The wiring is more flexible, and the application scene is wider; at the same time, by increasing the rotating connecting ring with the segmented locking function, the position and direction of the dark box are more easily adjusted during connection, and the connection and fixation are facilitated.
[0034] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A precast concrete element magazine, characterised in that: The body (1) of the dark box, the body (1) is cylindrical, the body (1) is internally provided with a hollow mounting cavity, the bottom of the mounting cavity is provided with a pipe joint group communicated with it on both sides, and the upper end of the mounting cavity is provided with an upper cover (2); The pipe joint group includes a plurality of first pipe joints (3) arranged in a straight line, at least one second pipe joint (4) is arranged on the body (1), the inner hole diameter of the second pipe joint (4) is larger than that of the first pipe joint (3); a conversion plug (5) is clamped in the second pipe joint (4) by a snap spring assembly, and the inner hole diameter of the conversion plug (5) is smaller than that of the second pipe joint (4); The inner wall of the upper end of the mounting cavity is provided with a segmented rotating groove (6), the segmented rotating groove (6) is rotatably connected with a connecting ring (7), and the connecting ring (7) is provided with a plurality of teeth groups (8).
2. A precast concrete element shutter as claimed in claim 1, characterised in that: The segmented rotating groove (6) includes a tightening segment (61) and a suspended segment (62) arranged in sequence according to the circumference.
3. A precast concrete element shutter as claimed in claim 2, characterised in that: The tooth group includes a plurality of teeth corresponding to the tightening segment (61) and the suspended segment (62), and when the tooth group rotates into the tightening segment (61), the connecting ring (7) is locked relative to the body (1).
4. A precast concrete element magazine as claimed in claim 1, characterised in that: The front end of the conversion plug (5) is provided with a hole edge cover (9), and a reinforcing rib (10) is arranged between the outer wall of the conversion plug (5) and the hole edge cover (9).
5. A precast concrete element shutter as claimed in claim 4, characterised in that: The snap spring assembly includes a snap spring (11) arranged at the bottom of the second pipe joint (4) and a card (12) arranged at the bottom of the hole edge cover (9).
6. A precast concrete element magazine as claimed in claim 1, characterised in that: The inner hole diameter of the first pipe joint (3) is 16mm or 20mm, the inner hole diameter of the second pipe joint (4) is 25mm, and the inner hole diameter of the conversion plug (5) is 16mm or 20mm.