NPN or PNP switchable miniaturized IO terminal block

Abstract

The utility model relates to the technical field of terminal blocks, and discloses an NPN or PNP switchable miniaturized IO terminal block, which comprises a lower cover, the bottom of the lower cover is provided with a quick release assembly, the quick release assembly is used for quickly taking down the terminal block for maintenance, the inner side of the quick release assembly is provided with an overturning switching assembly, and the overturning switching assembly is used for switching between the overturning switching assembly and the lower cover. And the overturning switching assembly is used for adjusting a switch structure at the bottom, and the quick release assembly comprises two sets of connecting plates. According to the NPN or PNP switchable miniaturized IO terminal block, the quick release assembly is installed, the two sets of sliding blocks can be connected with the lower cover through the connecting plate, splicing installation can be achieved after connection, the bottom sliding rail at the lower end can limit the sliding blocks, the sliding blocks can be directly installed on the inner sides of the bottom sliding rails by sliding along the inner sides of the limiting sliding grooves, and the sliding blocks can be directly installed on the inner sides of the bottom sliding rails. And in addition, the position can be moved and adjusted according to needs, and the device can be taken down in a sliding mode during maintenance and is convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of terminal blocks, in particular to a miniaturized IO terminal block with NPN or PNP switchable. Background Technique

[0002] With the continuous development of industrial automation, in recent years, programmable logic controllers (PLCs) have won people's favor with their unique advantages such as high reliability, strong adaptability, good flexibility, simple programming, and easy to master. In a PLC control system, as the main control device, the PLC is necessarily connected to various input signals (such as buttons, limit switches, toggle switches, contacts of relays, and other detection signals) and output devices (such as relay coils, contactor coils, solenoid valves, etc.) in the control object. In actual work, due to the limitation of the scale of the PLC application system, the number of PLC I / O points is often insufficient. In order to expand the I / O points of the in-use PLC to meet the usage requirements, selecting a terminal block is an effective way to improve the performance-price ratio of the control system. By setting a changeover switch, it is possible to switch between NPN and PNP modes.

[0003] In the prior art during use, the existing terminal block needs to be fixed by a bolt structure during installation, and it is not convenient to disassemble and install during maintenance. Content of the Utility Model

[0004] The purpose of the utility model is to provide a miniaturized IO terminal block with NPN or PNP switchable, so as to solve the problem that the existing terminal block needs to be fixed by a bolt structure during installation and is not convenient to disassemble and install during maintenance in the above background technique.

[0005] In order to solve the above technical problems, the utility model provides the following technical solution: a miniaturized IO terminal block with NPN or PNP switchable, including a lower cover, a quick-release component is arranged at the bottom of the lower cover, and the quick-release component is used to quickly remove the terminal block for maintenance. A flip-over switching component is arranged inside the quick-release component, and the flip-over switching component is used to adjust the switch structure at the bottom;

[0006] The quick-release component includes two groups of connecting plates, and sliding blocks are installed at the bottoms of both ends of the connecting plates. A bottom slide rail is arranged outside the sliding blocks, and three positioning rings are respectively installed on the front and back of the bottom slide rail;

[0007] The flip-over switching component includes two groups of limit sliders, and a flip-over seat is arranged outside the limit sliders. A compression plate is arranged at the top of the flip-over seat, and connecting rods are installed at both ends of the flip-over seat.

[0008] Preferably, an upper cover is installed on the top of the lower cover, and a back end is installed on the back of the upper cover and the lower cover.

[0009] Preferably, a number of groups of terminal blocks are installed on the front of the upper cover and the lower cover, and a toggle switch is provided at the bottom of the lower cover.

[0010] Preferably, an installation knob is provided inside the connecting plate, and the installation knob is located at the bottom of the lower cover.

[0011] Preferably, an adjustment knob is provided at the end of the connecting rod, and the adjustment knob is located outside the bottom slide rail.

[0012] Preferably, a limit guide plate is installed at the top inside the compression plate, a push plate is installed at the bottom of the limit guide plate, a number of groups of support springs are provided at the bottom of the push plate, and the support springs are located inside the flip seat.

[0013] Preferably, adjustment grooves are provided on both sides of the bottom slide rail, the adjustment grooves are located outside the connecting rod, screw grooves are provided inside the positioning ring, and two groups of limit sliding grooves are provided at the top of the bottom slide rail, and the limit sliding grooves are located outside the sliding block.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0015] First, by installing a quick-release component, the present utility model can connect two sliding blocks to the lower cover by using the connecting plate. After connection, it can be used for splicing and installation. The bottom slide rail at the lower end can limit the sliding block. The sliding block can be directly installed inside the bottom slide rail by sliding along the inside of the limit sliding groove, and the position can be adjusted according to requirements. And when performing maintenance, it can be slid off for easy disassembly.

[0016] Second, by installing a flip and switch component, in the existing terminal block, the mode switch is set at the bottom of the device, which makes it inconvenient to adjust during mode switching. By providing a flip seat inside the bottom slide rail, an installation position can be provided for the internal structure. The limit slider at the bottom can slide horizontally, and the position of the compression plate at the top can be adjusted by controlling the flip through the connecting rod. After the compression plate contacts the toggle switch and moves, the toggle switch can be directly switched, thus achieving the effect of mode switching without disassembling the device and reducing the switching difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the sliding block structure of the present utility model;

[0019] Figure 3 is a schematic cross-sectional diagram of the toggle switch of the present utility model;

[0020] Figure 4 Schematic diagram of the compression plate structure of the present utility model;

[0021] Figure 5 Cross-sectional schematic diagram of the flip seat of the present utility model.

[0022] Wherein: 1, lower cover; 101, upper cover; 102, back end; 103, wiring terminal; 104, toggle switch; 2, slider; 201, connecting plate; 202, mounting knob; 3, connecting rod; 301, limit slider; 302, flip seat; 303, adjusting knob; 4, compression plate; 401, support spring; 402, push plate; 403, limit guide plate; 5, bottom slide rail; 501, limit chute; 502, adjusting groove; 503, positioning ring; 504, screw groove. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , a miniaturized IO terminal block with NPN or PNP switchable function, including a lower cover 1. A quick-release component is provided at the bottom of the lower cover 1, and the quick-release component is used to quickly remove the terminal block for maintenance. A flip-switching component is provided inside the quick-release component, and the flip-switching component is used to adjust the switch structure at the bottom;

[0025] The quick-release component includes two groups of connecting plates 201. Sliders 2 are installed at the bottoms of both ends of the connecting plates 201. A bottom slide rail 5 is provided outside the sliders 2, and three groups of positioning rings 503 are installed on the front and back of the bottom slide rail 5 respectively;

[0026] The flip-switching component includes two groups of limit sliders 301. A flip seat 302 is provided outside the limit sliders 301. A compression plate 4 is provided at the top of the flip seat 302, and connecting rods 3 are installed at both ends of the flip seat 302.

[0027] Through the above technical solutions, the two sliders 2 can be connected to the lower cover 1 by using the connecting plates 201. After connection, it can be used for splicing and installation. The bottom slide rail 5 at the lower end can limit the sliders 2. The sliders 2 can be directly installed inside the bottom slide rail 5 by sliding along the inside of the limit chute 501, and can be moved and adjusted in position according to needs. And when performing maintenance, it can be slid off for easy disassembly.

[0028] Through the above technical solution, by providing a flipping seat 302 inside the bottom slide rail 5, an installation position can be provided for the internal structure. The limiting slider 301 at the bottom can slide horizontally. By controlling the flipping through the connecting rod 3, the position of the top compression plate 4 can be adjusted. When the compression plate 4 contacts and moves the toggle switch 104, the toggle switch 104 can be directly switched, thus achieving the effect of mode switching without disassembling the device and reducing the difficulty of switching.

[0029] Specifically, the upper cover 101 is installed on the top of the lower cover 1, and the back end 102 is installed on the back of the upper cover 101 and the lower cover 1.

[0030] Through the above technical solution, the combination of the upper cover 101 and the lower cover 1 provides protection for the internal structure, and the back end 102 is used to connect to external devices.

[0031] Specifically, several groups of terminal blocks 103 are installed on the front of the upper cover 101 and the lower cover 1, and a toggle switch 104 is arranged at the bottom of the lower cover 1.

[0032] Through the above technical solution, the terminal block 103 is used to connect to an external controller to ensure normal data transmission, and the toggle switch 104 at the bottom can switch the mode of the device by adjustment.

[0033] Specifically, an installation knob 202 is arranged inside the connecting plate 201, and the installation knob 202 is located at the bottom of the lower cover 1.

[0034] Through the above technical solution, the connecting plate 201 can be fixed to the bottom of the lower cover 1 by rotating the installation knob 202.

[0035] Specifically, an adjustment knob 303 is arranged at the end of the connecting rod 3, and the adjustment knob 303 is located outside the bottom slide rail 5.

[0036] Through the above technical solution, by rotating the adjustment knob 303, the connecting rod 3 and the internal flipping seat 302 can be driven to rotate, and sliding adjustment can be promoted.

[0037] Specifically, a limiting guide plate 403 is installed at the top inside the compression plate 4, a pushing plate 402 is installed at the bottom of the limiting guide plate 403, several groups of support springs 401 are arranged at the bottom of the pushing plate 402, and the support springs 401 are located inside the flipping seat 302.

[0038] Through the above technical solution, the limiting guide plate 403 is used to limit the lifting of the compression plate 4. By using the pushing plate 402, the bottom support springs 401 can be contacted. The support springs 401 push the compression plate 4 to expand, so as to always keep in contact with the bottom of the lower cover 1, which is convenient for adjusting the toggle switch 104.

[0039] Specifically, adjustment grooves 502 are formed on both sides of the bottom slide rail 5, and the adjustment grooves 502 are located outside the connecting rod 3. A screw groove 504 is formed inside the positioning ring 503, and two groups of limit sliding grooves 501 are formed on the top of the bottom slide rail 5, and the limit sliding grooves 501 are located outside the sliding block 2.

[0040] Through the above technical solution, the adjustment groove 502 can provide a limit for the inner connecting rod 3, the screw groove 504 is used to provide an installation position for the fixing bolt, and the limit sliding groove 501 can assist the sliding block 2 to slide horizontally.

[0041] During use, first place the bottom slide rail 5 at the installation position, and then fix it with bolts. Slide the sliding block 2 along the limit sliding groove 501 for adjustment. After sliding, the circuit can be connected. When mode adjustment is required, the adjustment knob 303 can be grasped to control the rotation and movement adjustment of the connecting rod 3. After rotation, it will be close to the bottom of the lower cover 1, and then push the adjustment position. During the pushing process, when the toggle switch 104 is contacted, it will move along the inclined surface of the switch and compress the internal support spring 401. After reaching the other side of the toggle switch 104, push it in the reverse direction to perform mode switching.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope is defined by the appended claims and their equivalents.

Claims

1. A miniaturized NPN or PNP switchable IO terminal block, comprising a lower cover (1), characterized in that: A quick-release component is provided at the bottom of the lower cover (1), and the quick-release component is used to quickly remove the terminal block for maintenance. A flipping and switching component is provided inside the quick-release component, and the flipping and switching component is used to adjust the switch structure at the bottom; The quick-release component includes two connecting plates (201), and sliding blocks (2) are installed at the bottoms of both ends of the connecting plates (201). A bottom slide rail (5) is provided outside the sliding blocks (2), and three positioning rings (503) are installed on the front and back of the bottom slide rail (5) respectively; The flipping and switching component includes two limit sliders (301), and a flipping seat (302) is provided outside the limit sliders (301). A compression plate (4) is provided at the top of the flipping seat (302), and connecting rods (3) are installed at both ends of the flipping seat (302).

2. The miniaturized IO terminal block capable of switching between NPN and PNP according to claim 1, characterized in that: An upper cover (101) is installed at the top of the lower cover (1), and a back end (102) is installed on the back of the upper cover (101) and the lower cover (1).

3. The miniaturized IO terminal block capable of switching between NPN and PNP according to claim 2, characterized in that: A number of wiring terminals (103) are installed on the front of the upper cover (101) and the lower cover (1), and a toggle switch (104) is provided at the bottom of the lower cover (1).

4. A miniaturized NPN or PNP switchable IO terminal block according to claim 1, characterized in that: An installation knob (202) is provided inside the connecting plate (201), and the installation knob (202) is located at the bottom of the lower cover (1).

5. A miniaturized NPN or PNP switchable IO terminal block according to claim 1, characterized in that: An adjustment knob (303) is provided at the end of the connecting rod (3), and the adjustment knob (303) is located outside the bottom slide rail (5).

6. The miniaturized IO terminal block capable of switching between NPN and PNP according to claim 1, wherein: A limit guide plate (403) is installed at the top inside the compression plate (4), and a push plate (402) is installed at the bottom of the limit guide plate (403). A number of support springs (401) are provided at the bottom of the push plate (402), and the support springs (401) are located inside the flipping seat (302).

7. A miniaturized NPN or PNP switchable IO terminal block according to claim 1, characterized in that: Adjustment grooves (502) are provided on both sides of the bottom slide rail (5), and the adjustment grooves (502) are located outside the connecting rod (3). A threaded groove (504) is provided inside the positioning ring (503). Two limit sliding grooves (501) are provided at the top of the bottom slide rail (5), and the limit sliding grooves (501) are located outside the sliding block (2).

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