Waterproof device of wiring terminal strip and photoelectric switch

Abstract

The utility model provides a waterproof device of a wiring terminal strip and a photoelectric switch, and relates to the technical field of photoelectric switch waterproofing, and the waterproof device comprises a waterproof cover which is of a cavity structure with an opening at one end and is used for accommodating the wiring terminal strip; and the buckling piece is arranged on one side of the opening of the waterproof cover and is used for detachably fixing the waterproof cover and the mounting frame. The photoelectric switch comprises the waterproof device, a wiring terminal strip and a mounting frame, the wiring terminal strip is mounted at one end of the mounting frame, and a buckling groove is formed in the side wall of the mounting frame; after the installation frame is inserted into the waterproof cover along the first guide groove, the buckling piece and the buckling groove are matched to form a buckling assembly. The waterproof cover is used for replacing an original metal plate, the waterproof cover can be machined in advance, the installation efficiency is improved, meanwhile, a detachable structure convenient to disassemble and assemble is achieved through the buckling assembly, namely, the buckling piece arranged at one end of the waterproof cover and the buckling groove formed in the installation frame used for installing the wiring terminal strip, rapid disassembly and assembly are achieved, and the waterproof cover is convenient to assemble and disassemble. And installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric switch waterproofing, in particular to a waterproof device for a terminal block and a photoelectric switch. Background Art

[0002] Photoelectric switch is the abbreviation of photoelectric proximity switch. It uses the object to block or reflect the light beam, and the synchronous circuit connects the circuit to detect the presence of the object. Objects are not limited to metals. All objects that can reflect light (or block light) can be detected. The photoelectric switch converts the input current into a light signal on the transmitter, and the receiver detects the target object based on the strength or presence of the received light. Photoelectric switch smoke alarms are common in security systems, and they are often used in industry to count the number of movements of robotic arms.

[0003] Photoelectric switches, especially combined photoelectric switches, need to be equipped with waterproof protection devices at the terminal blocks to prevent the wiring from being exposed. The current common practice is to form a accommodating chamber by bending sheet metal, simply wrap the terminal block inside, and then fix the sheet metal with bolts to form a simple protection and waterproof effect. However, this method is more troublesome to install in the actual process. The sheet metal needs to be bent and then fixed with bolts. In addition, it is inconvenient to disassemble the photoelectric switch when it needs to be repaired. In short, there are many disassembly and assembly processes, which is time-consuming and labor-intensive.

[0004] Based on this, this case arises. Utility Model Content

[0005] The utility model aims to provide a waterproof device and a photoelectric switch for a terminal block, which can realize quick disassembly and assembly and are convenient for installation and maintenance.

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

[0007] The utility model provides a waterproof device for a terminal block in a first aspect, comprising: a waterproof cover in the shape of a cavity structure with one end open, for accommodating the terminal block; a fastener, arranged on one side of the opening of the waterproof cover, for detachably fixing the waterproof cover and the mounting frame.

[0008] In a second aspect, the utility model provides a photoelectric switch, comprising a waterproof device of the above-mentioned terminal block, wherein the photoelectric switch comprises the terminal block and a mounting frame, wherein the terminal block is mounted at one end of the mounting frame, and a snap-fit ​​groove is provided on a side wall of the mounting frame; after one end of the mounting frame provided with the terminal block is inserted into the waterproof cover along the first guide groove, the snap-fit ​​piece and the snap-fit ​​groove cooperate, and the snap-fit ​​piece and the snap-fit ​​groove form a snap-fit ​​assembly.

[0009] Compared with the prior art, the above technical solution has the following advantages:

[0010] The utility model replaces the original sheet metal with a waterproof cover, and the waterproof cover can be processed in advance to improve the installation efficiency. At the same time, a detachable structure that is easy to disassemble and assemble is realized through a snap-fit ​​assembly, that is, a snap-fit ​​piece arranged at one end of the waterproof cover and a snap-fit ​​groove arranged on a mounting frame for installing a terminal block, thereby realizing quick disassembly and assembly, and facilitating installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0012] Figure 1 A schematic diagram of a waterproof device and a photoelectric switch for a terminal block provided in a specific embodiment of the utility model (viewing angle 1);

[0013] Figure 2 A schematic diagram of a waterproof device and a photoelectric switch for a terminal block provided in a specific embodiment of the utility model (viewing angle 2);

[0014] Figure 3 for Figure 1 A magnified view of the structure at center A;

[0015] Figure 4 A schematic diagram of a waterproof device structure of a terminal block provided by a specific embodiment of the utility model;

[0016] Figure 5 The present invention is a schematic diagram of the internal structure of a waterproof device for a terminal block provided in a specific embodiment of the present invention.

[0017] The figure numbers are as follows: combined photoelectric switch 100, sub-photoelectric switch 101, mounting frame 200, fixing member 201, terminal block 300, waterproof cover 400, first guide groove 401, second guide groove 402, limit baffle 403, first convex rib 404, second convex rib 405, snap-fit ​​assembly 500, snap-fit ​​member 501, snap-fit ​​groove 502. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1: The waterproof device of a terminal block of the present embodiment is mainly composed of the following components: a waterproof cover 400, which is in the shape of a cavity structure with one end open, used to accommodate the terminal block 300, and is formed by integral injection molding; a fastener 501, which is arranged on one side of the opening of the waterproof cover 400, and is used to detachably fix the waterproof cover 400 and the mounting frame 200.

[0020] A photoelectric switch of the present embodiment includes the waterproof device of the above-mentioned terminal block, and the photoelectric switch includes a terminal block 300 and a mounting frame 200. The terminal block 300 is installed at one end of the mounting frame 200, and a snap-fit ​​groove 502 is provided on the side wall of the mounting frame 200; after one end of the mounting frame 200 on which the terminal block 300 is provided is inserted into the waterproof cover 400 along the first guide groove 401, the snap-fit ​​piece 501 and the snap-fit ​​groove 502 cooperate, and the snap-fit ​​piece 501 and the snap-fit ​​groove 502 form a snap-fit ​​assembly 500.

[0021] The utility model replaces the original sheet metal with a waterproof cover, and the waterproof cover 400 can be processed in advance to improve the installation efficiency. At the same time, a detachable structure that is easy to disassemble and assemble is realized through the snap-fit ​​assembly 500, that is, a snap-fit ​​piece 501 arranged at one end of the waterproof cover 400 and a snap-fit ​​groove 502 arranged on the mounting frame 200 for mounting the terminal block 300, thereby realizing quick disassembly and assembly, and facilitating installation and maintenance.

[0022] Embodiment 2: A waterproof device for a terminal block of this embodiment includes all the structures of Embodiment 1, but also has the following different structures:

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The first guide groove 401 is provided inside the waterproof cover 400 and is located on the side where the fastening member 501 is provided, and is used to accommodate the mounting frame 200 with the terminal block 300 installed, so that the mounting frame 200 is limited in the width direction of the waterproof cover 400; the second guide groove 402 is provided on the side where the first guide groove 401 is provided on the waterproof cover 400, and is used to accommodate the fixing member 201 that fixes the terminal block 300 and the mounting frame 200. In this embodiment, the first guide groove 401 protrudes outward from the waterproof cover 400; the second guide groove 402 protrudes outward from the waterproof cover 400, and the height of the second guide groove 402 protruding outward is greater than the height of the first guide groove 401 protruding outward. In this embodiment, two first guide grooves 401 are provided, which are arranged in parallel and symmetrically, and the second guide groove 402 is provided between the two first guide grooves 401.

[0024] During the actual installation, the portion of the photoelectric switch mounting frame 200 provided with the terminal block 300 is inserted into the waterproof cover 400 along the first guide groove 401. Then, since the terminal block 300 is connected to the mounting frame 200 by a fixing member 201 (bolts are used in this embodiment, screws may also be used), the fixing member 201 on the back of the mounting frame 200 (in Figure 5 The mounting frame 200 is hidden in the figure and only the fixing member 201 is shown for easy understanding. When the mounting frame 200 is inserted into the first guide groove 401, the fixing member 201 is accommodated in the second guide groove 402. The main function of the first guide groove 401 is to serve as a guide slideway so that the mounting frame 200 is limited in the width direction of the waterproof cover 400 when inserted into the waterproof cover 400. In short, it is convenient for guiding and positioning during insertion, and further improves the installation efficiency.

[0025] Preferably, the waterproof device of the terminal block in this embodiment further includes: a limit baffle 403, which is arranged on the inner side of the first guide groove 401, for limiting the height direction of the mounting frame 200 in the waterproof cover 400, so that when the mounting frame 200 is inserted into the waterproof cover 400, it is limited in the height direction of the waterproof cover 400, which further facilitates the insertion guide positioning and improves the installation efficiency. After the terminal block 300 is installed on the mounting frame 200, a gap groove (not shown in the figure) is formed between the two sides and the mounting frame 200. When the mounting frame 200 is inserted into the waterproof cover 400, the limit baffle 403 can extend into the gap groove to ensure the limit in the height direction.

[0026] Embodiment 3: A waterproof device for a terminal block of this embodiment includes all the structures of Embodiment 1 and Embodiment 2, but also has the following different structures:

[0027] Please refer to Figure 5The waterproof device of the terminal block of this embodiment further includes: convex ribs, which are distributed on the inner wall of the waterproof cover 400 away from the first guide groove 401. The convex ribs include: a first convex rib 404, which is located at the non-open end of the waterproof cover 400 and is in a lattice shape; a second convex rib 405, which is located on the side wall of the waterproof cover 400 where the first guide groove 401 is not provided, and a plurality of convex ribs are provided along the length direction of the waterproof cover 400. The convex ribs are mainly used to squeeze and fix the wiring harness. The first convex rib 404 in the lattice shape is used to squeeze and fix the terminal block while strengthening the structural strength of the waterproof cover 400.

[0028] The photoelectric switch of this embodiment is a combined photoelectric switch 100 including a plurality of sub-photoelectric switches 101, and the plurality of sub-photoelectric switches 101 are arranged in sequence and at intervals on a mounting frame 200. The waterproof device of the terminal block of the utility model is preferably applied to the combined photoelectric switch 100. Since the number of sub-photoelectric switches 101 is large and the terminal block has many connections, the waterproof device of the terminal block of the utility model is more needed.

[0029] Each embodiment in this specification focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0030] The above is a detailed introduction to a photoelectric switch terminal block waterproof device provided by the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A waterproof device for a terminal block, characterized in that: include: The waterproof cover (400) is in the shape of a cavity structure with one end open, and is used to accommodate a wiring terminal block (300); the wiring terminal block (300) is installed at one end of a mounting frame (200), and a side wall of the mounting frame (200) is provided with a buckling groove (502); A buckle (501) is provided on one side of the opening of the waterproof cover (400) and is used to detachably fix the waterproof cover (400) and the mounting frame (200); A first guide groove (401) is provided inside the waterproof cover (400) and is located on a side where the buckle (501) is provided, and is used to accommodate a mounting frame (200) on which the wiring terminal block (300) is installed; After one end of the terminal block (300) provided on the mounting frame (200) is inserted into the waterproof cover (400) along the first guide groove (401), the buckling piece (501) and the buckling groove (502) cooperate, and the buckling piece (501) and the buckling groove (502) form a buckling assembly (500).

2. The waterproof device for a terminal block according to claim 1, characterized in that: Also includes: The second guide groove (402) is provided on a side of the waterproof cover (400) where the first guide groove (401) is provided, and is used to accommodate a fixing member (201) for fixing the connection terminal block (300) to the mounting frame (200).

3. The waterproof device for the terminal block according to claim 2, characterized in that: The first guide groove (401) protrudes outwards from the waterproof cover (400); the second guide groove (402) protrudes outwards from the waterproof cover (400), and the outward protrusion height of the second guide groove (402) is greater than the outward protrusion height of the first guide groove (401).

4. The waterproof device for a terminal block according to claim 2, characterized in that: The first guide grooves (401) are provided with two, which are arranged in parallel and symmetrically, and the second guide groove (402) is arranged between the two first guide grooves (401).

5. The waterproof device for a terminal block according to any one of claims 1 to 4, characterized in that: Also includes: The limiting baffle (403) is arranged on the inner side of the first guide groove (401).

6. The waterproof device for a terminal block according to any one of claims 1 to 4, characterized in that: Also includes: The convex ribs are distributed on the inner wall of the waterproof cover (400) away from the first guide groove (401).

7. The waterproof device for a terminal block according to claim 6, characterized in that: The convex ribs include: a first convex rib (404), located at the non-open end of the waterproof cover (400) and in a lattice shape; and a second convex rib (405), located at a side wall of the waterproof cover (400) where the first guide groove (401) is not provided, and a plurality of second convex ribs are provided along the length direction of the waterproof cover (400).

8. A photoelectric switch, characterized in that: A waterproof device for a terminal block as claimed in any one of claims 1 to 7, the terminal block (300) and a mounting frame (200).

9. A photoelectric switch according to claim 8, characterized in that: The photoelectric switch is a combined photoelectric switch (100) comprising a plurality of sub-photoelectric switches (101).

Images