Push type overload protection switch

Abstract

The utility model discloses a push type overload protection switch, comprising a housing; a side cover; pressing the bracket; a longitudinal sliding block is installed at the top of the pressing support, a plurality of supporting springs are arranged between the longitudinal sliding block and the shell, a horizontal sliding block is installed at the bottom of the longitudinal sliding block, a sliding block spring is installed between the horizontal sliding block and the longitudinal sliding block, and a seesaw hinged to the interior of the shell is arranged below the horizontal sliding block. A hook piece connected with the bimetallic strip is hinged to the lower portion of one end of the seesaw. The pressing type overload protection switch is reasonable in structural design, the longitudinal sliding block is pressed to drive the horizontal sliding block to move downwards, the supporting feet at the bottom of the horizontal sliding block eject the tilted side of the seesaw to turn over downwards, the hook piece installed on the seesaw drives one end of the bimetallic strip to turn over up and down, and the bimetallic strip turns over upwards and downwards. The movable contact piece in the middle of the bimetallic strip is turned up and down in the opposite direction, so that contact and separation of the movable contact piece and the static contact piece are achieved, work is stable, and convenience and practicability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a press type overload protection switch. BACKGROUND

[0002] The overload protection switch is mainly used on the connector board, and the operation mode is divided into flip type and press type, the press key of the flip type switch is like a seesaw, occupies larger space, and is inconvenient to operate, the press type switch adopts ratchet gear device to cooperate with bimetallic sheet, the structure is complex, and when the bimetallic sheet needs to be reset after overload flip, a set of reset device must be additionally added, and the structure becomes more complex. SUMMARY

[0003] The utility model overcomes the insufficient of prior art, provides a press type overload protection switch.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a press type overload protection switch, comprising:

[0005] The shell is internally provided with a bimetallic sheet, a static contact sheet and a zero line contact sheet.

[0006] The side cover is integrated with the shell.

[0007] The press support is integrated with the shell.

[0008] Its characterized in that: the longitudinal slider is installed at the top of the press support, the horizontal slider is installed at the bottom of the longitudinal slider, the slider spring is installed between the horizontal slider and the longitudinal slider, the seesaw is hinged in the shell below the horizontal slider, and the hook sheet connected with the bimetallic sheet is hinged below one end of the seesaw.

[0009] In the above structure, two supporting legs are arranged at the bottom of the horizontal slider, and two convex platforms matched with the supporting legs are arranged at the top of the seesaw.

[0010] In the above structure, the hollow slot is arranged on the horizontal slider, and the slider spring is arranged in the hollow slot.

[0011] In the above structure, a plurality of supporting springs are arranged between the longitudinal slider and the shell.

[0012] The press type overload protection switch has the advantages that the structure is reasonable, the vertical sliding block drives the horizontal sliding block to move downwards, the supporting leg at the bottom of the horizontal sliding block drives one side of the seesaw to turn downwards, the hook piece installed on the seesaw drives one end of the bimetallic piece to turn upwards and downwards, the movable contact piece in the bimetallic piece turns upwards and downwards in the opposite direction, the movable contact piece and the static contact piece are in contact and separated, the technical effect of the switch is achieved, the structure is exquisite, the work is stable, and the switch is convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is an exploded structural schematic view of the press type overload protection switch according to an embodiment of the utility model;

[0014] Fig. 2 is a connection structural schematic view of the vertical sliding block and the horizontal sliding block in the press type overload protection switch according to an embodiment of the utility model.

[0015] In the drawing:

[0016] 1, housing; 2, bimetallic piece; 3, static contact piece; 4, zero line contact piece; 5, side cover; 6, pressing support; 7, vertical sliding block; 8, horizontal sliding block; 9, sliding block spring; 10, seesaw; 11, hook piece; 12, supporting leg; 13, boss; 14, hollow groove; 15, supporting spring. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model will be further described in detail in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0018] As shown in Figs. 1-2 , a press type overload protection switch comprises:

[0019] A housing 1 is internally provided with a bimetallic piece 2, a static contact piece 3 and a zero line contact piece 4.

[0020] A side cover 5 is integrated with the housing 1.

[0021] A pressing support 6 is integrated with the housing 1.

[0022] Characterized in that a vertical sliding block 7 is installed on the top of the pressing support 6, a horizontal sliding block 8 is installed at the bottom of the vertical sliding block 7, a sliding block spring 9 is installed between the horizontal sliding block 8 and the vertical sliding block 7, a seesaw 10 is hingedly connected inside the housing 1 below the horizontal sliding block 8, and a hook piece 11 connected with the bimetallic piece 2 is hingedly connected at one end of the seesaw 10.

[0023] In the structure, two supporting legs 12 are arranged on the bottom of the horizontal slider 8, and two convex platforms 13 are arranged on the top of the seesaw 10 and matched with the supporting legs 12.

[0024] In the structure, a hollow groove 14 is arranged on the horizontal slider 8, and the slider spring 9 is arranged in the hollow groove 14.

[0025] In the structure, a plurality of supporting springs 15 are arranged between the longitudinal slider 7 and the shell 1.

[0026] The pressing type overload protection switch has the advantages of reasonable structure, pressing the longitudinal slider to drive the horizontal slider to move downwards, the supporting leg on the bottom of the horizontal slider driving the one side of the seesaw to turn downwards, the hook piece arranged on the seesaw driving one end of the bimetallic sheet to turn upwards and downwards, the moving contact piece in the bimetallic sheet turning upwards and downwards in the opposite direction, the contact and separation of the moving contact piece and the static contact piece, the technical effect of the switch, the exquisite structure, the stable work, the convenience and the practicality.

[0027] The above is only the preferred embodiment of the utility model, and it should be pointed out that for the ordinary skilled in the technical field, a plurality of improvements and modifications can be made without departing from the technical principle of the utility model, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A press type overload protection switch, comprising: a shell (1) inside which a bimetallic strip (2), a static contact (3) and a zero line contact (4) are arranged; a side cover (5) which is integrated with the shell (1); a press support (6) which is integrated with the shell (1); characterized in that a longitudinal slider (7) is arranged on the top of the press support (6), a horizontal slider (8) is arranged on the bottom of the longitudinal slider (7), a slider spring (9) is arranged between the horizontal slider (8) and the longitudinal slider (7), a seesaw (10) is arranged below the horizontal slider (8) and is hinged inside the shell (1), and one end of the seesaw (10) is hinged with a hook (11) connected with the bimetallic strip (2).

2. The push-type overload protection switch according to claim 1, characterized in that: Two supporting legs (12) are arranged on the bottom of the horizontal slider (8), and two bosses (13) are arranged on the top of the seesaw (10) and are matched with the supporting legs (12).

3. The push-type overload protection switch of claim 1, wherein: An open slot (14) is arranged on the horizontal slider (8), and the slider spring (9) is arranged inside the open slot (14).

4. The push-type overload protection switch of claim 1, wherein: A plurality of supporting springs (15) are arranged between the longitudinal slider (7) and the shell (1).

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