Relay single spring switching mechanism

Abstract

The utility model discloses a single spring switching mechanism of a relay, which relates to the field of relays and comprises a bottom plate, a vertical support plate is fixedly mounted at the top of the bottom plate, a through hole is formed in the side surface of the top end of the support plate, a fixed shaft is fixedly mounted in the through hole, and an armature is rotatably sleeved in the through hole and positioned on the fixed shaft. An electromagnet is arranged on the top of the bottom plate and located on the right side of the supporting plate and located below the armature, a fixing rod is fixedly installed on the top of the bottom plate and located on the left side of the supporting plate, the fixing rod is sleeved with a sleeve in a threaded mode, and a spring is connected between the top end of the sleeve and the left end of the armature. According to the utility model, the sleeve is in threaded connection with the fixed column, so that the spring can be quickly and stably mounted and connected, and the spring mounting mode does not need to be dragged by a large force and can be completed only by screwing the sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to relay field, concretely relates to a relay single spring conversion mechanism. BACKGROUND

[0002] The single spring relay is a kind of relay that uses a single spring to close and open the contacts inside the relay. In the design of the relay, the spring is a key component, which is used to drive the closing and opening of the contacts when the electromagnet is attracted or released. The design of the single spring relay requires accurate calculation of the spring force, stroke and contact pressure to ensure the reliability and stability of the contacts during closing and opening. After long-term use of the relay, the spring needs to be replaced regularly for safe use of the relay. However, the common spring connection method mostly uses a strong pulling method for disassembly, which can easily injure the hands of the workers and is not convenient to operate under space constraints. Therefore, the present application proposes a relay single spring conversion mechanism. SUMMARY

[0003] In view of the above problems existing in the prior art relay single spring conversion mechanism, the utility model is proposed.

[0004] Therefore, the utility model aims to provide a relay single spring conversion mechanism, which solves the problem that the spring conversion structure in the relay needs to be pulled strongly to complete the spring disassembly when installing or replacing the spring.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A relay single spring conversion mechanism, comprising a bottom plate, a vertical support plate is fixedly installed on the top of the bottom plate, a through opening is formed in the side surface of the top end of the support plate, a fixed shaft is fixedly installed in the through opening, an armature is rotatably sleeved on the fixed shaft in the through opening, an electromagnet is arranged on the top of the bottom plate and located to the right of the support plate, the electromagnet is located below the armature, a fixed rod is fixedly installed on the top of the bottom plate and located to the left of the support plate, a sleeve is threadedly sleeved on the fixed rod, and a spring is connected between the top end of the sleeve and the left end of the armature.

[0007] Preferably, an inner groove is formed in the inside of the top end of the sleeve, a through hole is formed in the top end of the sleeve and communicates with the inner groove, a bearing is fixedly installed on the side wall of the inner groove, a rotating block is fixedly installed between the inner ring wall of the bearing, the bottom end of the spring is fixedly connected to the top of the rotating block through the through hole, a fixed block is fixedly installed on the left end of the armature, and the top end of the spring is connected with the fixed block.

[0008] Preferably, a plug hole is formed in the fixed block, the top end of the spring is in the shape of a hook, and the hook of the top end of the spring is inserted into the plug hole in the fixed block.

[0009] The right end of the bottom of the through hole is fixedly provided with a limiting block, the bottom of the armature is in contact with the top of the limiting block when the armature is in a horizontal state, and a movable contact is fixedly arranged at the bottom of the right end of the armature.

[0010] The side wall of the fixed rod is provided with a first screw hole, the side wall of the sleeve is provided with a second screw hole, and a bolt is inserted through the first screw hole and the second screw hole.

[0011] The outer wall of the rotating block is not in contact with the inner wall of the inner groove.

[0012] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0013] Through the threaded connection of the sleeve and the fixed column, the spring can be quickly and stably installed and connected, and the spring can be installed and connected only by rotating the sleeve without pulling the spring with great force, and the installed spring is stably connected. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 It is a front perspective structure schematic view of the utility model;

[0016] Figure 2 It is a top view perspective structure schematic view of the utility model;

[0017] Figure 3 It is a partial section structure schematic view of the utility model;

[0018] Figure 4 It is a section structure schematic view of the spring and the sleeve connection of the utility model.

[0019] Explanation of reference signs:

[0020] 1, bottom plate; 2, support plate; 3, through hole; 4, fixed shaft; 5, armature; 6, electromagnet; 7, fixed block; 8, fixed rod; 9, sleeve; 10, inner groove; 11, bearing; 12, rotating block; 13, through hole; 14, spring; 15, bolt; 16, limiting block. DETAILED DESCRIPTION

[0021] In order to make those skilled in the art better understand the technical solutions of the utility model, the utility model will be further described in detail in combination with the drawings.

[0022] The utility model provides a relay single spring conversion mechanism Figures 1-4 As shown in a kind of relay single spring conversion mechanism, including bottom plate 1, the top of bottom plate 1 is fixedly installed with vertical support plate 2, the side surface of support plate 2 top is opened with through 3, fixedly installed with fixed shaft 4 in through 3, rotating sleeve joint has armature 5 in through 3 and on fixed shaft 4, the top of bottom plate 1 and the right side of support plate 2 are provided with electromagnet 6, electromagnet 6 is below armature 5, the top of bottom plate 1 and the left side of support plate 2 are fixedly installed with fixed rod 8, threaded sleeve 9 is sleeved on fixed rod 8, spring 14 is connected between the top of sleeve 9 and the left end of armature 5.

[0023] In order to complete the connection between spring 14 and armature 5, as shown in Figures 1-4 The inside of the top of sleeve 9 is opened with inner groove 10, through hole 13 is opened with inner groove 10 in the top of sleeve 9, bearing 11 is fixedly installed on the side wall of inner groove 10, rotating block 12 is fixedly installed between the inner ring wall of bearing 11, the bottom end of spring 14 is fixedly connected in the top of rotating block 12 through through hole 13, the left end of armature 5 is fixedly installed with fixed block 7, the top end of spring 14 is connected with fixed block 7, the elastic force exerted by the top end of spring 14 on the left end of armature 5, so as to be able to play the role of pulling armature 5.

[0024] In order to facilitate the connection between spring 14 and armature 5, as shown in Figures 1-3 The top end of spring 14 is provided with hook shape, and the hook of the top end of spring 14 is inserted into the insertion hole on fixed block 7, so that the connection between spring 14 and armature 5 can be quickly completed.

[0025] In order to limit the rotation range of armature 5 when being adsorbed by electromagnet 6, as shown in Figure 3 The right end of the bottom of through 3 is fixedly installed with limit block 16, the bottom of armature 5 is attached to the top of limit block 16 when armature 5 is in horizontal state, and movable contact is fixedly installed on the bottom of the right end of armature 5, so that armature 5 will eventually be in a horizontal state under the action of limit block 16 when being adsorbed by electromagnet 6.

[0026] In order to increase the stability of the connection between sleeve 9 and fixed rod 8, as shown in Figures 3-4 The side wall of fixed rod 8 is opened with first screw hole, the side wall of sleeve 9 is opened with second screw hole, and screw 15 is inserted through between first screw hole and second screw hole, so that sleeve 9 cannot continue to rotate on fixed rod 8.

[0027] Finally, in order to make rotating block 12 rotate more smoothly in inner groove 10, as shown in Figures 3-4 The outer wall of rotating block 12 does not contact with the inner wall of inner groove 10.

[0028] In the connection spring 14, first the hook of spring 14 top end is inserted in the fixed block 7 on the left end of the armature 5 on the hole, then the sleeve 9 of spring 14 bottom end is screwed on the fixed rod 8, then rotate the sleeve 9 to make it pull the spring 14, when the sleeve 9 is screwed, the rotating block 12 will rotate in the inner groove 10, and the spring 14 will not be twisted because of the rotation of the sleeve 9, finally the position of the sleeve 9 is further fixed by the bolt 15, so that the connection of the spring 14 can be quickly and stably completed.

[0029] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A single spring relay switching mechanism comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly provided with a vertical support plate (2), a through hole (3) is formed in the side of the top end of the support plate (2), a fixed shaft (4) is fixedly installed in the through hole (3), a armature (5) is rotatably sleeved on the fixed shaft (4) in the through hole (3), the top of the bottom plate (1) and the right side of the support plate (2) are provided with an electromagnet (6), the electromagnet (6) is below the armature (5), the top of the bottom plate (1) and the left side of the support plate (2) are fixedly provided with a fixed rod (8), a sleeve (9) is threadedly sleeved on the fixed rod (8), and a spring (14) is connected between the top end of the sleeve (9) and the left end of the armature (5).

2. The relay single spring switching mechanism of claim 1, wherein: An inner groove (10) is formed in the inside of the top end of the sleeve (9), a through hole (13) is formed in the top end of the sleeve (9) and communicates with the inner groove (10), a bearing (11) is fixedly installed on the side wall of the inner groove (10), a rotating block (12) is fixedly installed between the inner ring walls of the bearing (11), the bottom end of the spring (14) is fixedly connected to the top of the rotating block (12) through the through hole (13), and the left end of the armature (5) is fixedly provided with a fixed block (7).

3. The relay single spring switching mechanism of claim 2, wherein: The top end of the spring (14) is provided in the shape of a hook, and the hook of the top end of the spring (14) is inserted into the insertion hole in the fixed block (7).

4. The relay single spring switching mechanism of claim 1, wherein: The right end of the bottom of the through hole (3) is fixedly provided with a limiting block (16), when the armature (5) is in a horizontal state, the bottom of the armature (5) is attached to the top of the limiting block (16), and a movable contact is fixedly installed at the bottom of the right end of the armature (5).

5. The relay single spring switching mechanism of claim 1, wherein: The side wall of the fixed rod (8) is provided with a first screw hole, the side wall of the sleeve (9) is provided with a second screw hole, and a bolt (15) is inserted through the first screw hole and the second screw hole.

6. The relay single spring switching mechanism of claim 2, wherein: The outer wall of the rotating block (12) is not in contact with the inner wall of the inner groove (10).

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