Relay with multiple groups of contacts

Abstract

The utility model discloses a multi-group contact relay comprising a relay housing, the relay housing is fixedly provided with a wiring board, the upper surface of the wiring board is provided with a plurality of wiring grooves, the wiring grooves are internally and fixedly provided with binding posts, and the upper surface of the wiring board is movably provided with a cover plate through a positioning assembly. A plurality of wire protection assemblies are arranged on the cover plate, each wire protection assembly comprises two sleeve plates which are oppositely arranged, the sleeve plates are arranged on the upper surface of the cover plate, groove blocks are fixedly installed on the inner sides of the sleeve plates, inserting rods are inserted into the groove blocks, springs sleeve the outer surfaces of the groove blocks, rotating blocks sleeve the outer walls of the upper ends of the sleeve plates, and supporting blocks are inserted into the inner walls of the rotating blocks; a pull block is fixedly connected to the outer wall of the rotating block, a wire is connected to a binding post, a spring is extruded inwards through a sleeve plate, an insertion rod moves towards the interior of a groove block, and a user rotates the rotating block to fix the sleeve plate. The wire protection device has the advantages of being high in practicability, convenient to install and capable of protecting wires.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a multi-group contact relay. Background Art

[0002] A relay, also known as an electric relay, is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. According to the form and number of relay contacts, it can be divided into two categories: single-group contact relays and multi-group contact relays. Among them, single-group contact relays are divided into three types: normally open contacts (make contacts), normally closed contacts (break contacts), and conversion contacts. Multi-group contact relays can include multiple groups of contacts of the same form or multiple different forms of contacts.

[0003] After some existing relays are connected with wires, the wire connection part is easily dropped and damaged.

[0004] Therefore, it is necessary to design a multi-contact relay that is practical, easy to install and can protect the wires. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-contact relay to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-group contact relay, comprising a relay housing, a terminal block is fixedly installed on the relay housing, a plurality of terminal slots are opened on the upper surface of the terminal block, terminal posts are fixedly installed inside the terminal slots, a cover plate is movably provided on the upper surface of the terminal block through a positioning assembly, a plurality of wire protection assemblies are provided on the cover plate, the wire protection assembly comprises two relatively arranged sleeve plates, the sleeve plates are arranged on the upper surface of the cover plate, a slot block is fixedly installed on the inner side of the sleeve plate, a plug rod is inserted into the interior of the slot block, a spring is sleeved on the outer surface of the slot block, a rubber strip is fixedly installed on the inner wall of the sleeve plate, a rotating block is sleeved on the upper outer wall of the sleeve plate, a supporting block is inserted into the inner wall of the rotating block, and a pull block is fixedly connected to the outer wall of the rotating block.

[0007] According to the above technical solution, the positioning assembly includes a baffle, a notch, a slide groove, a slider, a grip block, a connecting block, a return spring and a clamping block. The top of the baffle is provided with a notch, the bottom of the baffle is provided with a slide groove, the width of the slide groove is smaller than the width of the notch, symmetrically arranged sliders are slidably installed inside the notch, grip blocks are installed on the tops of the two sliders, a connecting block is installed in the middle of the notch, the opposite sides of the two sliders are fixedly connected with a return spring, one end of the return spring is respectively connected to the outer walls on both sides of the connecting block, and the bottom of the slider is connected to a clamping block.

[0008] According to the above technical solution, a wire groove is provided on the inner wall of the sleeve plate.

[0009] According to the above technical solution, the terminal is configured to be thin in the middle and thick at both ends.

[0010] According to the above technical solution, grooves are provided on both sides of the inner wall of the sleeve plate, threads are provided on the outer wall of the sleeve plate, and internal threads matching the threads of the sleeve plate are provided on the inner wall of the rotating block.

[0011] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model, by arranging a plurality of wire protection components on the cover plate, the wire protection components include two relatively arranged sleeve plates, the sleeve plates are arranged on the upper surface of the cover plate, a slot block is fixedly installed on the inner side of the sleeve plate, a plug rod is inserted in the interior of the slot block, a spring is sleeved on the outer surface of the slot block, a rubber strip is fixedly installed on the inner wall of the sleeve plate, a rotating block is sleeved on the outer wall of the upper end of the sleeve plate, a supporting block is inserted in the inner wall of the rotating block, a pulling block is fixedly connected to the outer wall of the rotating block, the wires are connected to the terminal, the two sleeve plates are squeezed inwardly, the spring is squeezed through the sleeve plates at the same time of squeezing, and the plug rod moves toward the inside of the slot block at the same time of squeezing, and then when the sleeve plates on both sides are fitted together, the user drives the supporting block to move to the outer side of the sleeve plate to fix the sleeve plate, and then the rubber strip is fitted on the outer wall of the wire to increase the friction force, so as to prevent the wire from being dragged and falling off the terminal post and being damaged by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall axial side structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the positioning component of the utility model;

[0015] Figure 3It is an enlarged schematic diagram of point A of the utility model;

[0016] Figure 4 It is a schematic diagram of a cross section of a sleeve plate of the utility model;

[0017] Figure 5 It is a schematic diagram of the positioning component structure of the utility model;

[0018] In the figure: 1. relay housing; 2. terminal block; 3. terminal slot; 4. terminal post; 5. positioning assembly; 501. baffle; 502. notch; 503. slide slot; 504. slider; 505. grip block; 506. connecting block; 507. reset spring; 508. clamping block; 6. cover plate; 7. wire protection assembly; 701. sleeve plate; 702. slot block; 703. plug rod; 704. spring; 705. rubber strip; 8. rotating block; 9. support block; 10. pull block; 11. wire slot. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5The utility model provides a technical solution: a multi-contact relay, including a relay housing 1, a wiring board 2 is fixedly installed on the relay housing 1, a plurality of wiring slots 3 are provided on the upper surface of the wiring board 2, a terminal 4 is fixedly installed inside the wiring slot 3, a cover plate 6 is movably provided on the upper surface of the wiring board 2 through a positioning component 5, a plurality of wire protection components 7 are provided on the cover plate 6, and the wire protection component 7 includes two relatively arranged sleeves 701, the sleeves 701 are arranged on the upper surface of the cover plate 6, wherein grooves are provided on both sides of the inner wall of the sleeve 701, the outer wall of the sleeve 701 is provided with threads, a slot block 702 is fixedly installed on the inner side of the sleeve 701, a plug rod 703 is inserted into the interior of the slot block 702, a spring 704 is sleeved on the outer surface of the slot block 702, a rubber strip 705 is fixedly installed on the inner wall of the sleeve 701, and the upper end outer wall of the sleeve 701 is sleeved There is a rotating block 8, which can fix the wire protection assembly 7. The inner wall of the rotating block 8 is plugged with a supporting block 9, and the outer wall of the rotating block 8 is fixedly connected with a pulling block 10. The pulling block 10 is used to rotate with the rotating block 8, and then the supporting block 9 is driven by the rotating block 8 to rotate on the outer wall of the sleeve plate 701, and moves downward while rotating. The inner wall of the supporting block 9 is provided with a thread, and the wire is connected to the terminal 4. The two sleeve plates 701 are squeezed inwardly, and the spring 704 is squeezed through the sleeve plates 701 while squeezing, and then the insertion rod 703 moves toward the inside of the slot block 702 while squeezing. Then, when the sleeve plates 701 on both sides are fitted, the user drives the supporting block 9 to move to the outside of the sleeve plate 701 by the rotating block 8 to fix the sleeve plate 701, and then the rubber strip 705 is fitted on the outer wall of the wire to increase the friction force to prevent the wire from being dragged and falling off the terminal 4 due to external force and being damaged.

[0021] The positioning assembly 5 includes a baffle 501, a notch 502, a slide groove 503, a slider 504, a gripping block 505, a connecting block 506, a reset spring 507 and a clamping block 508. The top of the baffle 501 is provided with a notch 502, and the bottom of the baffle 501 is provided with a slide groove 503, the width of the slide groove 503 is smaller than the width of the notch 502, and the inside of the notch 502 is slidably installed with symmetrically arranged sliders 504, the tops of the two sliders 504 are both installed with gripping blocks 505, the middle of the inside of the notch 502 is installed with a connecting block 506, and the two sliders 504 are fixedly connected on opposite sides There is a return spring 507, one end of which is connected to the outer walls of both sides of the connecting block 506 respectively. A clamping block 508 is connected to the bottom of the slider 504, and the clamping block 508 is "L"-shaped. Hold the grip block 505 and place the baffle 501 on the upper end of the terminal block 2. Release the grip block 505. At this time, the return spring 507 can drive the slider 504 to move to the two ends of the slot 502. Since the clamping block 508 is "L"-shaped, it cooperates with the top slider 504 to form a "concave" shape, and can then be engaged with the terminal block 2. Similarly, the baffle 501 can be pulled out to release the protection of the wires.

[0022] The inner wall of the cover plate 701 is provided with a wire groove 11 through which the wires pass out.

[0023] The terminal 4 is configured to be thin in the middle and thick at both ends, and the wire is sleeved on the thinner position in the middle of the terminal 4 so as not to slip out easily.

[0024] Grooves are provided on both sides of the inner wall of the sleeve 701, and threads are provided on the outer wall of the sleeve 701. The inner wall of the rotating block 8 is provided with internal threads that match the threads of the sleeve 701. After the wires are connected and the sleeve 701 fixes the wires, the rotating block 8 is sleeved on the outer surface of the sleeve 701 to fix the wire protection assembly.

[0025] Working principle: First, the wire is sleeved on the thinner position in the middle of the terminal 4, and the other end of the wire passes through the wire protection assembly 7. The cover plate 6 is covered on the upper end of the terminal board 2. The grip block 505 is held by hand, and the baffle 501 is placed on the upper end of the terminal board 2. The grip block 505 is released. At this time, the reset spring 507 can drive the slider 504 to move to the two ends of the slot 502. Since the card block 508 is "L"-shaped, it cooperates with the top slider 504 to form a "concave" shape, and then can be engaged with the terminal board 2. The rotating block 8 drives the support block 9 to move to the outside of the sleeve plate 701 and then is threadedly connected to the sleeve plate 701 to fix the sleeve plate 701. Then, the rubber strip 705 is attached to the outer wall of the wire to increase the friction, so as to prevent the wire from being dragged from the terminal 4 and damaged by external force.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-contact relay, comprising a relay housing (1), characterized in that: The relay housing (1) is fixedly mounted with a wiring board (2), the upper surface of the wiring board (2) is provided with a plurality of wiring slots (3), the interior of the wiring slots (3) is fixedly mounted with a wiring post (4), the upper surface of the wiring board (2) is movably provided with a cover plate (6) via a positioning assembly (5), the cover plate (6) is provided with a plurality of wire protection assemblies (7), the wire protection assemblies (7) comprising two sets of plates (701) arranged opposite to each other, the sets of plates (701) being arranged on the cover plate (6) ), a slot block (702) is fixedly installed on the inner side of the sleeve plate (701), an insertion rod (703) is inserted into the interior of the slot block (702), a spring (704) is sleeved on the outer surface of the slot block (702), a rubber strip (705) is fixedly installed on the inner wall of the sleeve plate (701), a rotating block (8) is sleeved on the outer wall of the upper end of the sleeve plate (701), a supporting block (9) is inserted into the inner wall of the rotating block (8), and a pulling block (10) is fixedly connected to the outer wall of the rotating block (8).

2. A multi-contact relay according to claim 1, characterized in that: The positioning assembly (5) comprises a baffle (501), a notch (502), a slide groove (503), a slider (504), a gripping block (505), a connecting block (506), a return spring (507) and a clamping block (508); the top of the baffle (501) is provided with a notch (502); the bottom of the baffle (501) is provided with a slide groove (503); the width of the slide groove (503) is smaller than the width of the notch (502); the width of the notch (502) is smaller than the width of the notch (502); The interior is slidably installed with symmetrically arranged sliders (504), the tops of the two sliders (504) are each installed with a gripping block (505), a connecting block (506) is installed in the middle of the inside of the notch (502), and the two sliders (504) are fixedly connected with a return spring (507) on the opposite side, one end of the return spring (507) is respectively connected to the outer walls of both sides of the connecting block (506), and the bottom of the slider (504) is connected with a clamping block (508).

3. A multi-contact relay according to claim 1, characterized in that: The inner wall of the sleeve plate (701) is provided with a wire groove (11).

4. A multi-contact relay according to claim 1, characterized in that: The terminal (4) is configured to be thin in the middle and thick at both ends.

5. A multi-contact relay according to claim 1, characterized in that: Grooves are provided on both sides of the inner wall of the sleeve plate (701), threads are provided on the outer wall of the sleeve plate (701), and internal threads matching the threads of the sleeve plate (701) are provided on the inner wall of the rotating block (8).

Images