JPS5821530Y2 - Grease filter - Google Patents

Description

[Detailed description of the invention] The present invention relates to a grease filter, and its gist is that both ends of the fixing part 3 of the guide plate 2 are fixed to the filter frame 1, and a plurality of guide plates 2 are installed inside the filter frame 1. The flexible movable blades 4 are arranged in the left-right direction and extend from one side edge of the fixed part 3 toward the back surface of the adjacent guide plate 2 to connect with the movable blades 4 of the adjacent guide plates 2. An eccentric element 8 is attached to the filter frame 1 so that the fixed part 3 faces each other so as to be able to approach and separate from each other, and the movable wing piece 4 is pressed against the fixed part 3 to close the guide plate 2.
The elastic body 9 urges the eccentric element 8 in the direction of pressing the movable blade 4, and the movable blade 4 is pressed against the temperature sensitive element 10, which loses its locking function due to temperature rise. The grease filter is comprised of an eccentric element 8 that is released from the engine and is held in place.The purpose of the grease filter is not only to separate and collect oil and fat using a guide plate, but also to automatically set up the filter in the event of an abnormality such as a fire. To provide a grease filter capable of closing a guide plate to prevent flames from entering behind the grease filter.

The present invention will be explained in detail below with reference to the accompanying drawings.

The filter frame 1 includes a square frame-shaped front frame 1a and a rear frame 1b.
are formed by fitting them together.

The guide plate 2 is a long piece formed by bending into a substantially S-shaped cross section, and extends one side edge of the fixing part 3, which has round holes 11 perforated at both ends, toward the back side of the fixing part 3. Fold the fixed wing piece 1 towards the
2, a movable wing 4 having spring properties extends slightly backward from the other side edge of the fixed part 3, and the tip edge of the movable wing 4 is further bent forward. Yes, 4 movable wing pieces
A square hole 13 is bored at each end.

The guide plate 2 is horizontally installed in the filter frame 1 in the left-right direction by fixing both ends of the fixing part 3 to both sides of the front frame 1a by means such as welding, and is installed at appropriate intervals within the filter frame 1. There are multiple pieces inside, top and bottom.

Therefore, the leading edges of the movable blades 4 of the adjacent guide plates 2 face the back surface of the fixed part 3 with a small gap d in between, and the leading edges of the fixed blades 12 face the movable blades with a small gap d in between. Round holes 14 are bored on both sides of the front frame body 1a, facing the front surfaces of the pieces 4 so as to overlap each other little by little, and facing the corners 113 of the movable wing pieces 4.

The position adjuster 5 is made of a bolt 5a, a butterfly nut 5b, and a compression spring 5c, and the bolt 5a with the compression spring 5c inserted is inserted into the round hole 14 of the front frame 1a and the square hole 13 of the movable wing piece 4. A butterfly nut) 5b is hinged to the bolt 5a from the front side of the front frame body 1a, and the butterfly nut) 5a is inserted between the head 15 of the front frame body 1a.
The lower prismatic throat part 16 is fitted into the square hole 13 to prevent rotation, and the movable wing piece 4 is urged backward by the compression spring 5c and by the head 15 of the bolt 5a. Location is restricted.

The baffle plate 6 is a long piece bent to have a substantially V-shaped cross section, and the supported part 1 has square holes 17 bored at both ends.
Side wings 19 extend substantially forward from both side edges of 8.

The movement adjuster 7 also consists of a bolt 7a, a butterfly nut 7b, and a compression spring 7c.

The baffle plate 6 is arranged in the left-right direction behind the guide plate 2, and the spring 7a with the compression spring 7c is inserted between the square hole 17 of the baffle plate 6 and the round hole 11 of the fixed part 3 of the guide plate 2. 7a from the front side of the guide plate 2.
b are screwed to support the baffle plates 6, and each baffle plate 6 straddles between the vertically adjacent guide plates 2, and the side fixtures 19 are attached to the adjacent guide plates 2 with a small gap d in between. It is facing the back.

The rotation of the housing 7a is regulated by fitting the throat part 16 into the square hole 17, and the baffle plate 6 is urged backward by the compression spring 7c, and its movement is restricted by the head 15 of the holder 7a. There is.

Reference numeral 20 denotes bearings fixed to both sides of the rear frame body 1b by welding or the like, and both ends of the shaft rod 21 are rotatably supported on the bearings 20, so that the shaft rod 21 is horizontally supported behind the movable wing piece 4. The eccentric element 8 is fixed approximately at the center of the shaft rod 21.

22 is an interlocking rod, and the connecting arm 22 is fixed to each shaft rod 21.
The eccentric element 8 is rotatably attached to the eccentric element 8 so that all the eccentric elements 8 are integrally interlocked.

When the interlocking rod 22 slides upward, each eccentric element 8 rotates downward and presses the movable blade 4 forward, bringing the movable blade 4 and the fixed part 3 into contact with each other, and the connecting rod 22 returns downward, each eccentric element 8 rotates upward, and the movable wing piece 4 separates from the fixed part 3 as shown in FIG.

Reference numeral 9 designates an elastic body such as a tension spring, and a frame is passed between the cut and raised piece 24 of the rear frame body 1b and the upper end of the interlocking rod 22 to elastically pull the interlocking rod 22 upward.

Reference numeral 25 denotes a return cable tied to the lower end of the interlocking rod 22, and is drawn out to the front side of the filter frame 1 through the through hole 26 of the filter frame 1.

Reference numeral 27 denotes support angles horizontally installed at appropriate positions on the rear frame body 1b, and the base of the temperature sensitive element 10 is attached approximately at the center of the support angle 27 so as to face any one of the eccentric elements 8. The tip of the temperature sensitive element 10 is bent toward the side facing the eccentric element 8 (high expansion side) to form a locking part 28 for locking the tip of the eccentric element 8.

As the temperature-sensitive element 10, a heat-sensitive bending element (so-called bimetal) made by bonding two sheets of different metals with different coefficients of thermal expansion is used. Under normal temperature conditions, the locking part 28 is attached to the tip of the eccentric element 8. The eccentric element 8 is suspended from the movable wing piece 4 against the elastic force of the elastic body 9, and when the ambient temperature rises, the temperature sensing element 10 bends upward in the direction of separation (lower expansion side). Then, when the temperature reaches an abnormal temperature, the bent locking portion 28 of the temperature sensing element 10 comes off from the eccentric element 8.

The grease filter A configured as described above is detachably attached to the side opening of the housing 29 to form a grease filter device 30 as shown in FIG. 7, and the grease filter device 30 is shown in FIG. Kitchen appliance 31 as shown
It is attached to the smoke exhaust path 32 at the top, etc., and a fan 33 is provided within the smoke exhaust path 32.

Oil spills that occur on the kitchen appliances 31 etc. are separated and collected by the grease filter A by the suction force of the fan 33, and are sucked into the grease filter device 30, and then passed through the smoke exhaust path 3.
2 and is discharged by a fan 33.

At this time, the oil smoke flows in the grease filter A along the path shown by the arrow in FIG. When passing through the small gap d between the piece 4 and the side wing 19 of the baffle plate 6, the flow speed increases and the flow meanderes, causing the oil smoke to collide with the guide plate 2 and the baffle plate 6 at high speed, causing the oil smoke to explode. The fats and oils adhere to the guide plate 2 and the baffle plate 6 and are separated and collected.

The ability to separate and collect oil and the amount of oil smoke emitted is determined by the gap width of the small gap d between the movable wing piece 4 of the guide plate 2 and the fixed part 3, and the width of the small gap d between the guide plate 2 and the side wing 19 of the baffle plate 6. It changes depending on the gap width of the small gap d, etc., and the gap width of these small gaps d needs to be adjusted appropriately depending on the amount of oil smoke and the type of oil smoke.

In the above-mentioned grease filter A, the movable wing piece 4 can be moved by rotating the wing nut 5b of the position adjustment tool 5, and the gap width of the small gap d between the movable wing piece 4 and the fixed part 3 can be adjusted. By rotating the butterfly nut 7b of the movement adjuster 7, the buckle plate 6 is moved and the guide plate 2 is moved.
The width of the small gap d between the baffle plate 6 and the baffle plate 6 can be adjusted.

For example, part A in FIG. 4 and part A in FIG. 19 and the guide plate 2 with the small gap d narrowed.
The bottom part of FIG. 5 shows the movement of the movable wing piece 4
5 shows a state in which the small gap d between the movable blade 4 and the fixed part 3 is narrowed, and the second part in FIG. The small gap d between the side wing 19 of the baffle plate 6 and the guide plate 2 is shown narrowed.

However, considering the amount of oil smoke emitted and the amount of oil and fat collected,
The small gap d can be adjusted by turning the butterfly nuts 5b and 7b from the front side.

Moreover, since the guide plates 2 and baffle plates 6 in multiple stages above and below can be adjusted individually, they can be adjusted according to the flow (distribution) of oil smoke. , the width of the small gap d can be made narrower in the upper part.

The above-mentioned grease filter A also has the function of a fire prevention shutter, and normally the locking part 28 of the temperature sensitive element 10 is caught on the tip of the eccentric element 8, as shown in FIG. 2 is opened in an adjusted state, but if the ambient temperature rises abnormally due to a fire outbreak, etc., the temperature sensing element 10 bends upward and comes off the tip of the eccentric element 8, and the elastic force of the elastic body 9 As a result, each eccentric element 8 rotates downward and presses the movable wing piece 4, and as shown in FIG. The guide plate 2 is closed by the edge contacting the fixing part 3, and flames are prevented from entering into the grease filter device 30 and the smoke exhaust path 32.

After the ambient temperature returns to normal temperature, grease filter A
To restore the original normal state and open the guide plate 2,
Pull the return cable 25 and slide the interlocking rod 22 downward,
It is sufficient to simply lock the locking portion 28 of the temperature sensitive element 10 to the eccentric element 8.

This proposal is structured as described above, so in short, when the oil smoke passes through the small gap between the movable wing piece of the guide plate and the fixed part, the oil and fat in the oil smoke is collected on the guide plate. Moreover, if there is an abnormal temperature rise due to a fire, etc., the temperature sensing element will be sensitive to the temperature sensing element, the eccentric element will come off from the temperature sensing element, the movable blade will be pushed out, the guide plate will close, and the fire prevention shutter will be closed. This prevents flames from entering the smoke exhaust passage and causing fires, and since the guide plate for collecting oil and fat also serves as a fire shutter, a separate fire prevention shutter is installed inside the smoke exhaust passage. The advantage is that there is no need to provide

Moreover, one side of each movable wing is not integrated with the fixed part, and only the other side of the movable wing comes into contact with the adjacent fixed part and blocks the guide plate. Even if the position of the guide plate (guide plate) is slightly deviated, there is no possibility that a gap will occur between the movable wing piece and the adjacent fixed part, resulting in poor closing.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing one embodiment of the present invention, Fig. 2 is a partially cutaway rear view of the same, and Fig. 3 is a partial view showing the arrangement of the filter frame, guide plate, and baffle plate of the above. FIG. 4 and FIG. 5 are partially cutaway perspective views of a guide plate and a baffle plate for explaining the operation of the same as above; FIG. Fig. 7 is a schematic front view of the grease filter device incorporating the above grease filter, and Fig. 8 is a general view of the above grease filter device. It is a schematic diagram showing an example of placement. DESCRIPTION OF SYMBOLS 1... Filter frame body, 2... Guide plate, 3... Fixed part, 4... Movable wing piece, 8... Eccentric element, 9... Elastic body, 10... Temperature Sensing element.

Claims (1)

[Scope of utility model registration request] Both ends of the fixed part of the guide plate are fixed to the filter frame, and multiple guide plates are arranged in the left and right direction inside the filter frame, and the guide plate is flexible from one side edge of the fixed part to the back of the adjacent guide plate. Eccentricity for closing the guide plate by extending a movable wing having a movable wing and making the movable wing and the fixed part of adjacent guide plates face each other so as to be able to approach and separate from each other, and pressing the movable wing against the fixed part. The element is rotatably attached to the filter frame, and the elastic body urges the eccentric element in the direction of pressing the movable blade, thereby pressing the movable blade against the temperature-sensitive element, which loses its locking function due to temperature rise. A grease filter that locks and holds the eccentric element that has been released from the state.