A water return prevention device for a bar quenching furnace

Abstract

The utility model relates to a kind of water return prevention device for bar quenching furnace, belong to heat treatment equipment technical field. Including mounting seat, the inner ring is in the mounting seat, multiple circumferentially distributed water baffle pieces are hinged in the inner ring, multiple the water baffle pieces are sequentially stacked arrangement, multiple fixed seat groups are set in the inner wall of the inner ring, the fixed seat group corresponds with water baffle piece;Pin shaft is respectively equipped in the fixed seat group, one end of water baffle piece is respectively sleeved on corresponding pin shaft, so that water baffle piece rotates with pin shaft as center, elastic member is respectively sleeved on pin shaft, one end of the elastic member acts on the inner ring, the other end of the elastic member acts on water baffle piece, initial state, the pre-tightening force of the elastic member provides the torque for water baffle piece to make it close to the direction of center, the structure of the application is simple, easy to install, reduce water flow splash, ensure the quality of the material produced, eliminate quality hidden danger.

Description

Technical Field

[0001] This utility model relates to a backflow prevention device for a bar quenching furnace, belonging to the technical field of heat treatment equipment. Background Technology

[0002] The continuous roller hearth quenching furnace is a crucial piece of equipment in our factory. During production, bars are continuously fed into the quenching machine one after another, and the water spray ring of the quenching machine is of the oblique spray type. When the water spray nozzle is directly aligned with the end face of the bar, water splashing back will occur. This splashed water entering the furnace will affect the furnace temperature, and splashing onto the surface of the next bar to be quenched will affect the material quality. Current technology lacks a simple anti-backflow device that does not interfere with continuous feeding. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a backflow prevention device for bar quenching furnaces, which is simple in structure, easy to install, reduces water splashing, ensures the quality of the produced materials, and eliminates potential quality problems.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: a backwater prevention device for a bar quenching furnace, including a mounting base, an inner ring inside the mounting base, and multiple circumferentially distributed water-blocking plates hinged in the inner ring. The multiple water-blocking plates are arranged in sequence and stacked. Multiple sets of fixing seats are provided on the inner wall of the inner ring, and the fixing seats correspond to the water-blocking plates. Each fixing seat set is provided with a pin, and one end of each water-blocking plate is sleeved on the corresponding pin, so that the water-blocking plate rotates around the pin. Elastic elements are sleeved on each pin, one end of the elastic element acts on the inner ring, and the other end of the elastic element acts on the water-blocking plate. In the initial state, the preload of the elastic element provides the torque for the water-blocking plate to close in the direction of the center.

[0005] Each of the aforementioned fixed base groups includes two oppositely arranged fixed bases, each fixed base having a shaft hole, and the two ends of the pin are disposed in the corresponding shaft holes.

[0006] The water-blocking plate is fan-shaped.

[0007] The elastic element is a torsion spring.

[0008] Compared with existing technologies, the advantages of this utility model are as follows: A backflow prevention device for a bar quenching furnace, initially formed into a circle by a torsion spring when no external force is applied, and forming a complete annular baffle when closed. When the bar passes through, the outer wall of the bar overcomes the torque of the torsion spring and pushes open the baffle, allowing the bar to pass through. After the tail of the bar passes through, the baffle automatically resets and closes under the torque of the torsion spring, effectively preventing water backflow. This application has a simple structure, is easy to install, reduces water backflow, ensures the quality of the produced materials, and eliminates potential quality problems. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a backflow prevention device for a bar quenching furnace according to an embodiment of the present invention; Figure 2 This is a side view; In the diagram, 1 is the mounting base, 2 is the inner ring, 3 is the torsion spring, 4 is the pin, 5 is the fixing base, and 6 is the water baffle. Detailed Implementation

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0011] like Figure 1 , 2 As shown, this embodiment of a bar quenching furnace anti-backflow device includes a mounting base 1, with an inner ring 2 inside the mounting base 1. Multiple circumferentially distributed water-blocking plates 6 are arranged in a stacked manner within the inner ring 2. Multiple sets of fixing seats are arranged on the inner wall of the inner ring 2, corresponding to the water-blocking plates. Each fixing seat set includes two oppositely arranged fixing seats 5, each with a horizontally opened shaft hole. Two ends of a pin 4 are positioned within the corresponding shaft hole. One end of each water-blocking plate 6 is fitted onto the corresponding pin 4, allowing the water-blocking plate to rotate around the pin. Torsion springs 3 are fitted onto the pins, with one leg of the torsion spring 3 acting on the inner ring 2 and the other leg acting on the water-blocking plate 6. The preload of the torsion spring provides the torque required to close the water-blocking plate towards the center. Initially, the torsion springs cause the water-blocking plate to form a circle when no external force is applied, and when closed, it forms a complete annular baffle.

[0012] There are 8 water-retaining plates. The water-retaining plates are fan-shaped iron plates. The number of torsion springs is the same as the number of water-retaining plates, and each water-retaining plate is provided with torque by a corresponding torsion spring.

[0013] When the bar passes through, the outer wall of the bar overcomes the torque of the torsion spring and pushes open the baffle plate, allowing the bar to pass through the baffle plate; after the tail of the bar passes through, the baffle plate automatically resets and closes under the action of the torsion spring torque, effectively preventing water from splashing back.

[0014] This application features a simple structure and easy installation, reduces water splashing, ensures the quality of the produced materials, and eliminates potential quality risks.

[0015] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A backflow prevention device for a bar quenching furnace, characterized in that: The device includes a mounting base with an inner ring. Multiple circumferentially distributed water-blocking plates are hinged within the inner ring and stacked sequentially. Multiple sets of fixing seats are provided on the inner wall of the inner ring, each set corresponding to a water-blocking plate. Each fixing seat set contains a pin, and one end of each water-blocking plate is fitted onto the corresponding pin, allowing the water-blocking plate to rotate around the pin. Elastic elements are fitted onto each pin, with one end acting on the inner ring and the other end acting on the water-blocking plate. Initially, the preload of the elastic elements provides the water-blocking plate with a torque that causes it to close towards the center.

2. The anti-backflow device for a bar quenching furnace according to claim 1, characterized in that: Each of the aforementioned fixed base groups includes two oppositely arranged fixed bases, each fixed base having a shaft hole, and the two ends of the pin are disposed in the corresponding shaft holes.

3. The anti-backflow device for a bar quenching furnace according to claim 1, characterized in that: The water-blocking plate is fan-shaped.

4. The anti-backflow device for a bar quenching furnace according to claim 1, characterized in that: The elastic element is a torsion spring.

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