Contactor in fire control cabinet

Abstract

The utility model discloses a contactor in a fire control cabinet, which comprises a contactor main body, a lower clamping jaw is fixedly arranged at the lower part of the back of the contactor main body, and an upper clamping jaw is rotationally connected to the upper part of the back of the contactor main body through a rotating shaft. The top of the contactor main body is provided with an upper clamping jaw limiting block capable of sliding back and forth through a limiting block fixing buckle, an overturning limiting block used for limiting the overturning angle of the upper clamping jaw is arranged between the contactor main body and the upper clamping jaw, and the overturning limiting block is fixed on the contactor main body; when the installation structure is installed, the back face of the contactor main body is firstly attached to the installation frame, then the upper clamping jaw limiting block is pushed, the upper clamping jaw limiting block can drive the upper clamping jaw to turn over downwards and prevent the upper clamping jaw from resetting, and the upper clamping jaw and the lower clamping jaw are matched to achieve installation and fixation of the contactor main body. The operation of a user is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a contactor in a fire control cabinet. Background Art

[0002] Contactor is a widely used switch electrical appliance, which uses electromagnetic, pneumatic or hydraulic principles to realize the on and off of the main circuit through the control circuit. Contactor has the advantages of strong current breaking capacity, rapid action, safe operation, frequent operation and remote control, but it cannot cut off the short-circuit current, so contactor usually has to be used in conjunction with fuse. The main control object of contactor is the motor, and it can also be used to control other electrical loads, such as welding machines, electric furnaces, etc.

[0003] When installing, the existing contactor is mainly connected to the mounting frame through the fixed buckle on the back and the movable buckle pushed by the spring. When disassembling, it is necessary to find the corresponding pull ring to compress the spring. The installation and disassembly process is not difficult for professionals, but there are certain difficulties for non-professionals. Utility Model Content

[0004] The utility model aims to provide a contactor in a fire control cabinet to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a contactor in a fire control cabinet, comprising a contactor body, a lower claw fixedly provided on the lower part of the back side of the contactor body, an upper claw rotatably connected to the upper part of the back side of the contactor body through a rotating shaft, an upper claw limiting block that can slide back and forth is installed on the top of the contactor body through a limiting block fixing buckle, a flip limiting block for limiting the flipping angle of the upper claw is provided between the contactor body and the upper claw, the flip limiting block is fixed on the contactor body, and a reset spring is installed on each side of the rotating shaft, and the reset spring is used to drive the end of the upper claw away from the rotating shaft to rotate upward.

[0006] Preferably, a limiting block stopper is fixed at a position near the front end of the top of the contactor body, and the limiting block stopper is used to prevent the upper claw limiting block from being separated from the limiting block fixing buckle.

[0007] Preferably, a shift block is fixed to one side of the top of the upper clamping claw limiting block, and the other side of the upper clamping claw limiting block is an arc-shaped side.

[0008] Preferably, the limiting block fixing buckle is in a "X" shape, and the limiting block fixing buckle is fixedly connected to the contactor body by screws.

[0009] Preferably, a limiting shaft is fixed to the inner top of the limiting block fixing buckle, a positioning slot is opened at the center position of the upper claw limiting block along the length direction of the upper claw limiting block, and the limiting shaft is inserted into the positioning slot.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the upper claw on the contactor body of the utility model is tilted upward at one end away from the rotating shaft under the action of the reset spring, which makes it convenient for the contactor body to contact with the mounting frame. At the same time, the flip limiting block on the contactor body will limit the flipping angle of the upper claw, avoiding the upper claw being in a vertical state under the action of the reset spring. The flip limiting block will make the flip limiting block tilt at a certain angle, which is convenient for the upper claw limiting block to push the upper claw. When installing the utility model, the back of the contactor body is first attached to the mounting frame, and then the upper claw limiting block is pushed. The upper claw limiting block will drive the upper claw to flip downward and hinder the upper claw from resetting. The cooperation between the upper claw and the lower claw realizes the installation and fixation of the contactor body. In summary, the installation structure of the utility model is simple and effective, and is convenient for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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:

[0012] Figure 1 This is a schematic diagram of the connection structure between the entirety of the utility model and the mounting frame;

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the upper clamping claw limiting block of the utility model;

[0015] Figure 4 It is a structural schematic diagram of a limiting block fixing buckle of the utility model.

[0016] In the figure: 1. contactor body; 2. lower clamping claw; 3. upper clamping claw; 4. rotating shaft; 5. positioning slide groove; 6. flip limit block; 7. limit block fixing buckle; 8. upper clamping claw limit block; 9. limit block stopper; 10. reset spring; 11. limit shaft; 12. shift block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0018] See also Figure 1-4 In an embodiment of the utility model, a contactor in a fire control cabinet includes a contactor body 1, a lower claw 2 is fixedly provided on the lower part of the back side of the contactor body 1, an upper claw 3 is rotatably connected to the upper part of the back side of the contactor body 1 through a rotating shaft 4, an upper claw limiting block 8 that can slide back and forth is installed on the top of the contactor body 1 through a limiting block fixing buckle 7, a flip limiting block 6 for limiting the flip angle of the upper claw 3 is provided between the contactor body 1 and the upper claw 3, the flip limiting block 6 is fixed on the contactor body 1, and a reset spring 10 is installed on each side of the rotating shaft 4, and the reset spring 10 is used to drive the end of the upper claw 3 away from the rotating shaft 4 to rotate upward.

[0019] A limiting block stopper 9 is fixed at a position near the front end of the top of the contactor body 1 , and the limiting block stopper 9 is used to prevent the upper claw limiting block 8 from being separated from the limiting block fixing buckle 7 .

[0020] A shift block 12 is fixed on one side of the top of the upper claw limiting block 8, and the other side of the upper claw limiting block 8 is an arc-shaped edge. The shift block 12 is used to facilitate the movement of the upper claw limiting block 8. The arc-shaped edge on the upper claw limiting block 8 facilitates the upper claw limiting block 8 to push the upper claw 3.

[0021] The limiting block fixing buckle 7 is in a "F" shape and is fixedly connected to the contactor body 1 by screws. A limiting shaft 11 is fixed to the inner top of the limiting block fixing buckle 7, and a positioning slot 5 is provided at the center of the upper clamping claw limiting block 8 along the length direction of the upper clamping claw limiting block 8, and the limiting shaft 11 is inserted into the positioning slot 5.

[0022] The working principle of the utility model is as follows: under the action of the reset spring 10, the end of the upper claw 3 on the contactor body 1 of the utility model away from the rotating shaft 4 is tilted upward, which makes it convenient for the contactor body 1 to contact with the mounting frame. At the same time, the flip limiting block 6 on the contactor body 1 will limit the flipping angle of the upper claw 3 to prevent the upper claw 3 from being in a vertical state under the action of the reset spring 10. The flip limiting block 6 will cause the flip limiting block 6 to tilt at a certain angle, which is convenient for the upper claw limiting block 8 to push the upper claw 3. When installing the utility model, the back of the contactor body 1 is first attached to the mounting frame, and then the upper claw limiting block 8 is pushed. The upper claw limiting block 8 will drive the upper claw 3 to flip downward and hinder the upper claw 3 from resetting. The cooperation between the upper claw 3 and the lower claw 2 realizes the installation and fixation of the contactor body 1.

[0023] 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 contactor in a fire control cabinet, comprising a contactor body (1), characterized in that: A lower claw (2) is fixedly provided at the lower part of the back side of the contactor body (1); an upper claw (3) is rotatably connected to the upper part of the back side of the contactor body (1) via a rotating shaft (4); an upper claw limiting block (8) that can slide forward and backward is installed at the top of the contactor body (1) via a limiting block fixing buckle (7); a flip limiting block (6) for limiting the flip angle of the upper claw (3) is provided between the contactor body (1) and the upper claw (3); the flip limiting block (6) is fixed on the contactor body (1); and a return spring (10) is installed on each side of the rotating shaft (4); the return spring (10) is used to drive the end of the upper claw (3) away from the rotating shaft (4) to rotate upward.

2. A contactor in a fire control cabinet according to claim 1, characterized in that: A limiting block stopper (9) is fixed at a position near the front end of the top of the contactor body (1), and the limiting block stopper (9) is used to prevent the upper clamping claw limiting block (8) from detaching from the limiting block fixing buckle (7).

3. A contactor in a fire control cabinet according to claim 1, characterized in that: A shift block (12) is fixed on one side of the top of the upper clamping claw limiting block (8), and the other side of the upper clamping claw limiting block (8) is an arc-shaped side.

4. A contactor in a fire control cabinet according to claim 1, characterized in that: The limiting block fixing buckle (7) is in the shape of a cross, and the limiting block fixing buckle (7) is fixedly connected to the contactor body (1) via screws.

5. A contactor in a fire control cabinet according to claim 4, characterized in that: A limiting shaft (11) is fixed to the inner top of the limiting block fixing buckle (7), a positioning slot (5) is provided at the center of the upper clamping claw limiting block (8) along the length direction of the upper clamping claw limiting block (8), and the limiting shaft (11) is inserted into the positioning slot (5).

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