CN218557431U

CN218557431U - Dust-collecting air damper

Info

Publication number: CN218557431U
Application number: CN202222701060.9U
Authority: CN
Inventors: 廖慧娟; 萧宇辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-03
Anticipated expiration: 2032-10-13

Abstract

The utility model relates to a collection dirt air damper, contain the shunt tubes and connect the shell, main flow pipe connects shell and gate, main flow pipe connects shell and shunt tubes to connect the shell and consolidates, and contain second sleeve portion and end the boss that leaks, it is cyclic annular to end the boss that leaks, the protruding medial surface of locating main flow pipe connects the shell, the inboard of ending the boss that leaks forms the boss wind gap, the inside of boss wind gap intercommunication second sleeve portion, the gate is inserted and is located between shunt tubes connects shell and main flow pipe and connects the shell, and can paste and end the slip of the boss and shutoff or open boss wind gap that leaks, paste the protruding boss that ends of medial surface from main flow pipe connects the shell and slide by letting the gate, the gate that compares current collection dirt air damper directly pastes and slides in the whole medial surface of main flow pipe connection shell, can reduce the area of contact between gate and the main flow pipe connection shell by a wide margin, and then make the probability that produces the gap between gate and the main flow pipe connection shell reduce effectively, the probability that the emergence is leaked, let carpenter dust collecting system can keep higher collection saw-dust, the efficiency of dust.

Description

Dust-collecting air damper

Technical Field

The utility model relates to a carpenter's equipment indicates a carpenter's dust collecting system's collection dirt air brake especially.

Background

In a woodworking space, a dust collecting system is usually configured to collect wood chips or dust generated by planing, so that the influence on a respiratory system of a worker due to the fact that a working environment is full of wood chips is avoided; dust collecting system contains dust collector and the collection dirt pipeline that the suction air was used, the collection dirt pipeline contains a mainstream pipe and a plurality of shunt tubes, a plurality of shunt tubes correspond the operation board of a plurality of differences respectively, be equipped with an album dirt air damper between each shunt tubes and the mainstream pipe, in the time of the use, open the collection dirt air damper that corresponds as required, make shunt tubes and the mainstream pipe intercommunication that corresponds, the shunt tubes that correspond can be by virtue of the pressure collection saw-dust or the dust entering mainstream pipe of dust collector suction air, and other album dirt air dampers are then closed, cut off other shunt tubes and mainstream pipe, pressure dispersion when avoiding the suction of dust collector.

As shown in fig. 7, a conventional dust collecting air damper includes a shunt tube connecting housing 91, a main flow tube connecting housing 92 and a gate 93, wherein the shunt tube connecting housing 91 includes a first sleeve portion 911 capable of being sleeved and communicating with corresponding shunt tubes, the main flow tube connecting housing 92 includes a second sleeve portion 921 capable of being sleeved and communicating with a main flow tube, the main flow tube connecting housing 92 is fixedly connected to the shunt tube connecting housing 91, the gate 93 is a sheet structure and is inserted between the main flow tube connecting housing 92 and the shunt tube connecting housing 91, and can move relative to the main flow tube connecting housing 92 and the shunt tube connecting housing 91 to be isolated between the first sleeve portion 911 and the second sleeve portion 921 and isolate corresponding shunt tubes from the main flow tube or leave between the first sleeve portion 911 and the second sleeve portion 921 to communicate corresponding shunt tubes with the main flow tube.

However, the conventional dust collecting air damper shown in fig. 7 has the following disadvantages; when the gate 93 is pulled, the gate 93 directly slides against an inner side 922 of the main flow pipe connecting shell 92 to block or open an air port on the inner side 922 communicating with the inside of the second sleeve part 921, thereby preventing the pressure sucked by the dust collector from being dispersed from the air port communicating with the inside of the second sleeve part 921, however, the inner side 922 is usually not a plane due to the manufacturing tolerance, or the inner side 922 and the gate 93 are damaged after friction, both of which cause the gap between the gate 93 and the main flow pipe connecting shell 92 easily, which leads to the pressure dispersion when the dust collector sucks and the efficiency of collecting wood chips and dust is reduced.

SUMMERY OF THE UTILITY MODEL

For in solving current album dirt air damper, produce the gap easily between the medial surface of mainstream union coupling shell and the gate, cause the problem of the efficiency reduction of collecting saw-dust, the utility model aims to provide a can reduce the gap and produce, reduce the collection dirt air damper that takes place the probability of air current leakage phenomenon between mainstream union coupling shell and the gate.

The utility model provides a collection dirt air damper that technical problem provided, it contains:

a shunt tube connecting shell which comprises a first sleeve part;

the main flow pipe connecting shell is fixedly combined with the flow dividing pipe connecting shell and comprises a second sleeve pipe part, an inner side surface facing the flow dividing pipe connecting shell and a leakage stopping boss, the leakage stopping boss is annular and is convexly arranged on the inner side surface of the main flow pipe connecting shell, a boss air port is formed on the inner side of the leakage stopping boss, and the boss air port is communicated with the inside of the second sleeve pipe part; and

and the gate is inserted between the flow dividing pipe connecting shell and the main flow pipe connecting shell, and can lean against the leakage stopping boss to slide so as to separate the boss air port from the inside of the first sleeve pipe part or enable the boss air port to be communicated with the inside of the first sleeve pipe part.

In the above-mentioned dust-collecting air damper, the first sleeve portion of the shunt tube connecting shell comprises an inner annular wall, and the inner diameter of the inner annular wall is gradually reduced toward the main flow tube connecting shell.

In the dust-collecting air damper, the second sleeve portion of the main pipe connecting housing includes an inner annular wall, and the inner diameter of the inner annular wall is gradually reduced toward the direction of the branch pipe connecting housing.

The dust-collecting air damper comprises an inner flange and a sleeve air port, wherein the inner flange is annularly and convexly arranged on the inner annular wall of the second sleeve pipe part, the inner diameter of the inner flange is gradually reduced towards the direction of the main flow pipe joint shell, the sleeve air port is positioned on one side of the flow-collecting pipe joint shell close to the main flow pipe joint shell and communicated with the inside of the first sleeve pipe part, and the sleeve air port is formed by surrounding the inner flange.

In the dust-collecting air damper, the damper can slide against the leakage-stopping boss and completely leave between the sleeve air port and the boss air port.

The dust-collecting air damper, wherein the shunt tube joint housing includes at least one first stopper, the at least one first stopper is protruded on an inner side of the shunt tube joint housing, the main tube joint housing includes at least one second stopper, the at least one second stopper is protruded on an inner side of the main tube joint housing, and the damper is limited by the at least one first stopper and the at least one second stopper and is located between the at least one first stopper and the at least one second stopper.

The utility model discloses an efficiency that technical means can obtain is promoted and is lain in: the utility model discloses an album dirt air damper, when pulling this gate, this gate pastes and leans on from the protruding boss that ends of ending of this mainstream pipe joint shell to slide, and the gate of comparing current album dirt air damper directly pastes and leans on and slides in the whole medial surface of mainstream pipe joint shell, the utility model discloses can reduce the area of contact between this gate and this mainstream pipe joint shell by a wide margin, let the probability that produces the gap between this gate and this mainstream pipe joint shell reduce, effectively reduce the probability that takes place to leak between this gate and this mainstream pipe joint shell, let carpenter's dust collecting system can keep the efficiency of higher collection saw-dust, dust.

Drawings

The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention. Wherein:

fig. 1 is an external perspective view of a preferred embodiment of the present invention.

Fig. 2 is a perspective sectional view of the preferred embodiment of the present invention.

Fig. 3 is an exploded view of the components of the preferred embodiment of the present invention.

Fig. 4 is a side sectional view of the preferred embodiment of the present invention.

Fig. 5 is a side view profile of the preferred embodiment of the present invention.

Fig. 6 is a schematic configuration diagram of a woodworking dust collecting system using the preferred embodiment of the invention.

Fig. 7 is an exploded view of the components of a prior art dust collecting air damper.

Detailed Description

In order to understand the technical features and practical effects of the present invention in detail and to realize the same according to the creation content, the following preferred embodiments are further illustrated in the accompanying drawings and described in detail:

as shown in fig. 1 and 2, the dust collecting air damper of the preferred embodiment of the present invention comprises a shunt tube connecting shell 10, a main flow tube connecting shell 20 and a gate 30, wherein the shunt tube connecting shell 10 is fixed to the main flow tube connecting shell 20, specifically, the gate 30 can be fixed by bolts, and the gate 30 is inserted between the shunt tube connecting shell 10 and the main flow tube connecting shell 20, and can move relative to the shunt tube connecting shell 10 and the main flow tube connecting shell 20.

As shown in fig. 2 to 4, the shunt tube connecting shell 10 includes a first sleeve portion 11, an inner side surface 12 and a sleeve air inlet 13, wherein the first sleeve portion 11 has a tubular structure for being sleeved and communicated with one of the shunt tubes 70 of the woodworking dust collecting system shown in fig. 6, the inner side surface 12 faces the main flow tube connecting shell 20, the sleeve air inlet 13 is formed by being surrounded by the first sleeve portion 11 and communicated with the inside of the first sleeve portion 11, specifically, in the preferred embodiment, the first sleeve portion 11 includes an inner flange 111, the inner flange 111 is annularly protruded on an inner annular wall of the first sleeve portion 11, and the sleeve air inlet 13 is formed by being surrounded by the inner flange 111 of the first sleeve portion 11.

As shown in fig. 2 to 4, the main pipe connecting housing 20 includes a second sleeve portion 21, an inner side surface 22 and a leakage stopping protrusion 23, the second sleeve portion 21 has a tubular structure for being sleeved and connected to the main pipe 80 of a woodworking dust collecting system as shown in fig. 6, the inner side surface 22 faces the bypass pipe connecting housing 10, specifically, the inner side surface 12 of the bypass pipe connecting housing 10 and the inner side surface 22 of the main pipe connecting housing 20 face each other, the leakage stopping protrusion 23 is annularly and is protruded from the inner side surface 22, one end of the leakage stopping protrusion 23 away from the inner side surface 22 forms an annular leakage stopping surface 231, the inner side of the leakage stopping protrusion 23 forms a protrusion opening 232, the leakage stopping surface 231 faces the bypass pipe connecting housing 10, the protrusion opening 232 is formed by the leakage stopping surface 231 of the leakage stopping protrusion 23, and the protrusion opening 232 is communicated with the inside of the second sleeve portion 21.

As shown in fig. 2 to 4, the gate 30 is a sheet structure and made of hard material, such as metal, plastic, or wood; the gate 30 is inserted between the shunt tube connecting shell 10 and the main flow tube connecting shell 20, and can slide against the leakage stopping surface 231 of the leakage stopping boss 23 to block the boss air opening 232 communicated with the inside of the second sleeve pipe portion 21 and the sleeve air opening 13 communicated with the inside of the first sleeve pipe portion 11, thereby being capable of blocking one of the shunt tubes 70 and the main flow tube 80 of the woodworking dust collecting system or keeping the one of the shunt tubes 70 and the main flow tube 80 communicated.

Specifically, as shown in fig. 4, when the dust collecting air damper is in a closed state, the damper 30 abuts against the leakage stop surface 231 of the leakage stop boss 23 and completely covers the leakage stop surface 23, the boss tuyere 232 of the leakage stop boss 23 is blocked by the damper 30 and cannot be communicated with the shroud tuyere 13 of the shunt tube connecting housing 10, so that the inside of the second shroud portion 21 is separated from the inside of the first shroud portion 11, the main flow tube 80 communicated with the inside of the second shroud portion 21 and the shunt tube 70 communicated with the inside of the first shroud portion 11 are blocked by the damper 30, and when the dust collector is started, the damper 30 abutting against the leakage stop boss 23 and blocking the tuyere boss 232 can prevent the pressure sucked by the dust collector from being dispersed from the boss tuyere 232 communicated with the second shroud portion 21.

When the dust collecting air damper needs to be turned to an open state, as shown in fig. 5, the shutter 30 is pulled to make the shutter 30 slide against the leakage stop surface 231 to open the boss tuyere 232, so that the sleeve tuyere 13 of the shunt tube connecting shell 10 is communicated with the boss tuyere 232 of the leakage stop boss 23, thus, the inside of the second sleeve part 21 is communicated with the inside of the first sleeve part 11, the main flow tube 80 communicated with the inside of the second sleeve part 21 is communicated with the shunt tube 70 communicated with the inside of the first sleeve part 11, and when the dust collector is started, the tail end of the shunt tube 70 can collect wood chips and dust in the surrounding environment by the pressure sucked by the dust collector.

The utility model discloses a collection dirt air damper, when pulling this gate 30, this gate 30 pastes and leans on the bellied boss 23 that ends of leaking from this mainstream pipe joint shell 20 to slide, and the gate 93 of comparing current collection dirt air damper directly pastes and leans on and slides in the whole medial surface 922 of mainstream pipe joint shell 92, the utility model discloses can reduce the area of contact between this gate 30 and this mainstream pipe joint shell 20 by a wide margin, let the probability that produces the gap between this gate 30 and this mainstream pipe joint shell 20 reduce, effectively reduce the probability that takes place to leak between this gate 30 and this mainstream pipe joint shell 20, let carpenter dust collecting system can keep the efficiency of higher collection saw-dust, dust.

In the preferred embodiment, when the gate 30 is pulled to switch the dust collecting air damper to the open state as shown in fig. 5, the gate 30 will be completely separated from between the sleeve air opening 13 of the shunt tube connecting shell 10 and the boss air opening 232 of the leakage stopping boss 23, when the air flow flows from the sleeve air opening 13 of the shunt tube connecting shell 10 to the boss air opening 232 of the leakage stopping boss 23, the gate 30 will not interfere the flow of the air flow to cause turbulence, and the efficiency of the woodworking dust collecting system for collecting wood chips and dust can be prevented from being affected.

In the preferred embodiment, as shown in fig. 4 and 5, the inner diameter of the inner annular wall of the first sleeve portion 11 of the shunt tube connecting shell 10 is tapered toward the main flow tube connecting shell 20, according to the bernoulli principle, when the airflow flows from the shunt tube 70 to the inside of the second sleeve portion 21 through the inside of the first sleeve portion 11, the flow velocity of the airflow is gradually increased due to the tapered inner diameter of the inner annular wall of the first sleeve portion 11, and the wood chips and dust driven by the airflow have a larger power when flowing to the boss air ports 232 of the leakage stopping bosses 23 through the sleeve air ports 13 of the shunt tube connecting shell 10, and are less likely to fall into the gap between the shunt tube connecting shell 10 and the main flow tube connecting shell 20 for the gate 30 to slide, so that the clogging of the wood chips and dust can be reduced.

In the preferred embodiment, as shown in fig. 4 and 5, the second sleeve portion 21 of the main flow pipe connecting housing 20 includes an inner annular wall, the inner diameter of the inner annular wall of the second sleeve portion 21 is tapered toward the direction of the flow pipe connecting housing 10, when the air flow flows from the boss air opening 232 of the leakage stop boss 23 to the main flow pipe 80 of the wood dust collecting system through the inside of the second sleeve portion 21, since the inner diameter of the inner annular wall of the second sleeve portion 21 is tapered along the air flow direction, the effect of the inner annular wall of the first sleeve portion 11 with the tapered inner diameter can be assisted, the speed of the air flow driving the wood chips and dust to flow from the sleeve air opening 13 to the boss air opening 232 can be accelerated, and the air flow interference phenomenon at the outlet of the end of the second sleeve portion 21 can be avoided when the air flow enters the main flow pipe 80 through the outlet of the end of the second sleeve portion 21.

In the preferred embodiment, the first sleeve part 11 is provided with the inner flange 111, wherein the inner diameter of the inner flange 111 tapers towards the main flow pipe connection shell 20, and the degree of the taper of the inner diameter of the inner flange 111 is greater than the degree of the taper of the inner diameter of the inner annular wall of the first sleeve part 11, so as to further increase the flow speed of the wood chips and dust driven by the airflow to the boss tuyere 232 through the sleeve tuyere 13.

By utilizing the above characteristic of accelerating the speed of the wood chips and dust driven by the airflow to flow to the boss air opening 232 through the sleeve air opening 13, the generation of accumulated chips is prevented, so that the fixedly combined shunt pipe connection shell 10 and the main flow pipe connection shell 20 only need to leave the opening of the gate 30 on one side, and the rest sides can be completely sealed, thereby further reducing the probability of airflow leakage.

As shown in fig. 3, in the preferred embodiment, the shunt tube connecting shell 10 further includes a plurality of first limiting blocks, the plurality of first limiting blocks include a main limiting block 14 and a plurality of auxiliary limiting blocks 15, the main limiting block 14 and the plurality of auxiliary limiting blocks 15 are both protruded on the inner side surface 12 of the shunt tube connecting shell 10, the main limiting block 14 is located under the bushing air opening 13, the auxiliary limiting blocks 15 are distributed at other positions of the inner side surface 12 of the shunt tube connecting shell 10, the main tube connecting shell 20 includes a second limiting block 24, the second limiting block 24 is protruded on the inner side surface 22 of the main tube connecting shell 20 and located under the leakage stopping boss 23, and the protruding distance of the second limiting block 24 from the inner side surface 22 is the same as the protruding distance of the leakage stopping boss 23 from the inner side surface 22.

The gate 30 is limited by the first stoppers of the branch pipe joint housing 10 and the second stopper 24 of the main pipe joint housing 20 and located between the first stoppers and the second stopper 24, thereby preventing the gate 30 from deflecting and tilting when moving relative to the branch pipe joint housing 10 and the main pipe joint housing 20, which prevents the gate 30 from being unable to abut against the leakage stop boss 23 and block the boss air opening 232 when the dust collecting air damper is in a closed state, and preventing gas leakage; in addition, the main limiting block 14 located below the casing tuyere 13 can also receive falling dust, so that the situation that the gate 30 cannot be pulled due to the blockage caused by the dust falling to the insertion opening of the gate 30 is avoided.

In the above preferred embodiment, the first stoppers of the shunt tube receiving housing 10 are matched with the second stoppers 24 of the main flow tube receiving housing 20, and in other embodiments, the number of the first stoppers and the second stoppers may be one first stopper matched with one second stopper, one first stopper matched with a plurality of second stoppers, or a plurality of first stoppers matched with a plurality of second stoppers, as long as the shunt tube receiving housing 10 and the main flow tube receiving housing 20 respectively include at least one first stopper and at least one second stopper 24, and the gate 30 can be limited between at least one first stopper and at least one second stopper 24, so as to achieve the effect of preventing the gate 30 from deflecting and tilting.

In the preferred embodiment, the gate 30 slides against the leakage stop surface 231 of the leakage stop boss 23, the leakage stop surface 231 is a plane, and in other embodiments, the side of the leakage stop boss 23 away from the inner side surface 22 can also be a ring and convex toward the arc surface of the shunt tube connecting shell 10, or the leakage stop boss 23 can also be a ring cone, so that the side of the leakage stop boss 23 away from the inner side surface 22 is only a circular line segment, and the gate 30 and the leakage stop boss 23 are in line contact, which can achieve the effects of reducing the contact area between the gate 30 and the main flow tube connecting shell 20 and reducing the chance of gap generation.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with the preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to the equivalent embodiment of the equivalent change within the scope of the technical solution of the present invention without departing from the technical solution of the present invention, but all simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence of the present invention will still fall within the scope of the technical solution of the present invention.

Claims

1. A dust collecting air damper, comprising:

a shunt tube connecting shell which comprises a first sleeve part;

the main flow pipe connecting shell is fixedly combined with the flow dividing pipe connecting shell and comprises a second sleeve pipe part, an inner side surface facing the flow dividing pipe connecting shell and a leakage stopping boss, wherein the leakage stopping boss is annular and is convexly arranged on the inner side surface of the main flow pipe connecting shell, a boss air port is formed on the inner side of the leakage stopping boss, and the boss air port is communicated with the inside of the second sleeve pipe part; and

and the gate is inserted between the shunt pipe connecting shell and the main flow pipe connecting shell, and can slide by abutting against the leakage stopping boss to separate the boss air opening from the inside of the first sleeve pipe part or enable the boss air opening to be communicated with the inside of the first sleeve pipe part.

2. The dust collecting air damper of claim 1, wherein the first sleeve portion of the bypass duct joint housing comprises an inner annular wall having an inner diameter tapering toward the main duct joint housing.

3. The dust collecting air damper according to claim 2, wherein the second sleeve portion of the main flow connection housing includes an inner annular wall having an inner diameter tapering toward the flow dividing tube connection housing.

4. The dust collecting air damper according to claim 1, wherein the second sleeve portion of the main flow connection housing includes an inner annular wall having an inner diameter tapering toward the flow dividing tube connection housing.

5. The dust-collecting air damper according to any one of claims 1-4, wherein the shunt tube connector housing comprises an inner flange annularly protruding from the inner annular wall of the first sleeve portion, and a sleeve air inlet, the inner flange having an inner diameter tapering toward the main tube connector housing, the sleeve air inlet being located at a side of the shunt tube connector housing close to the main tube connector housing and communicating with the inside of the first sleeve portion, the sleeve air inlet being surrounded by the inner flange.

6. The dirty-air damper of claim 5, wherein the damper slides against the stop boss and is fully out of the way between the sleeve port and the boss port.

7. The dust-collecting air damper according to claim 5, wherein the flow dividing tube connector comprises at least a first stopper protruding from an inner surface of the flow dividing tube connector facing the main flow tube connector, the main flow tube connector comprises at least a second stopper protruding from an inner surface of the main flow tube connector, and the damper is limited by the at least a first stopper and the at least a second stopper and located between the at least a first stopper and the at least a second stopper.

8. The dust-collecting air damper according to any one of claims 1 to 4, wherein the flow dividing pipe joint housing comprises at least one first stopper protruding from an inner side of the flow dividing pipe joint housing facing the main flow pipe joint housing, the main flow pipe joint housing comprises at least one second stopper protruding from an inner side of the main flow pipe joint housing, and the damper is limited by the at least one first stopper and the at least one second stopper and located between the at least one first stopper and the at least one second stopper.