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Locking structure

A technology of locking structure and stop plate, which is applied in the direction of functional valve type, control valve, safety valve, etc., can solve the problem of automatic failure of fire check valve, etc., and achieve the effect of reliable operation.

Pending Publication Date: 2020-09-01
梅慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the fire check valve automatically fail in low temperature environment

Method used

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  • Locking structure
  • Locking structure
  • Locking structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 , the locking structure includes a base 1, a connecting rod 2, an elastic element and a dial 3, the connecting rod 2 and the dial 3 are rotatably arranged on the base 1, one end of the elastic element is arranged on the base 1, and the other end of the elastic element is One end is arranged on the paddle 3 and is used to drive the paddle 3 to rotate relative to the base 1 .

[0031]It should be noted that: the existing elastic element is a torsion spring, and the torsion spring is sleeved on the rotating shaft of the plectrum 3. When the torsion spring is sleeved on the rotating shaft of the plectrum 3, one end of the torsion spring is fixed on the On the base 1 , the other end of the torsion spring abuts against the upper surface of the plectrum 3 . Since the elastic element is not the focus of the present invention, this embodiment does not specifically limit the structure of the elastic element and the connection structure between the elastic element an...

Embodiment 2

[0043] The difference from the first embodiment is that the structure of the fuse assembly is improved in this embodiment.

[0044] see Figure 4 , in this embodiment, the fuse assembly includes at least one fuse piece 42 and at least one stop ring 43, the stop ring 43 is made of fusible solder or metal, and the stop ring 43 is clamped on the first fuse piece 42 Between a fuse part 422 and a second fuse part 423 of the fuse piece 42 . When the stop ring 43 is made of metal, the stop ring 43 will not be melted, and when the stop ring is made of eutectic solder, the stop ring 43 and the fuse piece 42 are melted simultaneously. With such a design, the anti-deformation capability of the fuse link 42 will be significantly enhanced, and the fire check valve will prevent automatic failure in a low temperature environment.

[0045] In this embodiment, in addition to clamping the stop ring 43 in this embodiment between the first fuse part 422 of the fuse link 42 and the second fuse p...

Embodiment 3

[0047] The difference from the first embodiment is that the structure of the fuse assembly is improved in this embodiment.

[0048] see Figure 5 , in this embodiment, the fuse assembly includes at least one fuse ring 43, the fuse ring 43 is provided with a mounting hole, the fuse ring 43 is sleeved on the fastener 41 and is used to control the axial direction of the stop plate 5 range of motion.

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PUM

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Abstract

The invention relates to a locking structure which solves the problem that a fireproof check valve automatically fails in a low temperature environment. The locking structure includes a base, a connecting rod, an elastic element and a shift paddle. The connecting rod and the shift paddle are rotatably arranged on the base, one end of the elastic element is arranged on the base, the other end of the elastic element is arranged on the shift paddle and used for driving the shift paddle to rotate relative to the base, a fuse mechanism and a stop plate are further included, the stop plate is clamped between the fuse mechanism and the base, the stop plate is provided with a rotation stop portion, when the stop plate is clamped between the fuse mechanism and the base, the rotation stop portion isarranged on the shift paddle to prevent the shift paddle from rotating relative to the base, and after the fuse mechanism performs action, the stop plate moves relative to the base and separates therotation stop portion from the shift paddle.

Description

technical field [0001] The invention relates to a locking structure. Background technique [0002] The locking structure (refer to the utility model patent with the notification number CN206830892 for the specific structure) includes a valve seat, a paddle, a temperature-sensing element and an elastic element. The paddle is rotatably connected to the valve seat. The other end is connected with the paddle and drives the paddle against the temperature sensing element. [0003] Since the temperature sensing element includes the first copper sheet and the second copper sheet, the first copper sheet and the second copper sheet are connected as a whole by fusible solder, the first copper sheet is fixedly connected with the valve seat, the second copper sheet is connected with the plectrum Therefore, when the other end of the elastic element is connected to the plectrum and drives the plectrum to abut against the temperature sensing element, the second copper piece is always subje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/18F16K17/38
CPCF16K17/383F16K17/386F16K15/1821
Inventor 梅慧
Owner 梅慧