CN112123131A - Be applied to equipment of making an uproar that falls of pneumatic polisher - Google Patents

Abstract

The invention discloses a noise reduction device applied to a pneumatic grinding machine, which structurally comprises an air inlet, a motor protective shell, a grinding head and a switch pressing handle, wherein the pressing force is caused by the gas punching force to the lower abutting edge, so that the arc of the lower abutting edge is bent, an auxiliary block is connected to do inclined compression movement, a connecting section is dragged, the front side of a first through hole is expanded, part of gas is led into the inner side of a hooking head through the first through hole and moves together with the gas guided by the lower abutting edge, and part of gas flows out from a second through hole, so that the gas is prevented from gathering at the inner side of the lower abutting edge, the gas circulation is slow, an inner pressure layer is pressed, the pressing arc block is pressed to generate arc bending, the pressing arc block presses an inner abutting edge strip, the inner abutting edge strip presses a pocket body to be flattened, the pocket body tends to be horizontal and is more attached to the inner side of a pipeline, so that a corner abutting block bears the pressing force of a noise reducer and is isolated from the inner side of the pipeline, avoid generating sharp touch and generating secondary noise.

Description

Be applied to equipment of making an uproar that falls of pneumatic polisher

Technical Field

The invention belongs to the field of noise reduction, and particularly relates to noise reduction equipment applied to a pneumatic grinding machine.

Background

The pneumatic polisher drives the pneumatic motor by utilizing gas to drive the polishing head to rotate on metal layers, paint layers, putty layers and other layers for polishing, and the noise reducer installed on the pneumatic polisher can reduce noise transmitted along a pipeline when gas enters, so that gas can circulate and noise generated by aerodynamic force can be effectively reduced.

Based on the discovery of the inventor, the existing noise reduction equipment of the pneumatic grinding machine has the following defects:

because pneumatic motor's drive needs the continuous input of external gas, the external gas flow direction dispersion, when getting into the lumen way from the air inlet and transmitting, because of the flow direction position differs easily, collide with the pipe wall, the reaction force after the collision has stronger punching press to the equipment of making an uproar that falls, makes the equipment of making an uproar fall and moves to some extent in the lumen way, causes the secondary noise.

It is therefore desirable to provide a noise reduction apparatus for use in a pneumatic sander.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide noise reduction equipment applied to a pneumatic grinding machine so as to solve the problems in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an equipment of making an uproar falls for pneumatic polisher, its structure includes air inlet, motor protective case, the shell of polishing, the head of polishing, switch pressure handle, the one end of air inlet is connected with the motor protective case outside, the shell of polishing inlays the bottom position of solid mounting at the motor protective case, head of polishing swing joint is in the bottom of the shell of polishing, the one end that the handle was pressed to the switch is connected with the air inlet top, the handle activity is pressed in motor protective case top to the switch.

The air inlet is provided with a pipeline, a noise reducer, a petal supporting block and an angle supporting block, the noise reducer is located in the middle of the inner side of the pipeline, the outer wall of the petal supporting block is attached to the inner wall surface of the pipeline, the inner wall of the petal supporting block is fixedly connected with the outer wall surface of the noise reducer, the angle supporting block is in clearance fit connection with the petal supporting block, the number of the petal supporting blocks is four, the petal supporting blocks are in a semi-elliptical shape and located in four directions of the noise reducer, the annular attaching block is connected to the inner side surface of the pipeline, and the number of the angle supporting blocks is four and located at the positions.

As a further improvement of the invention, the petal abutting block is provided with a fixed block and a hooking guide head, the fixed block is fixedly embedded at the rear end of the hooking guide head, the fixed block is made of silica gel, and the hooking guide head is in an inverted hooking state.

As a further improvement of the invention, the hooking and guiding head is provided with a slow guiding area, a first through hole, a second through hole, a connecting block and a folding block, the front end of the slow guiding area is connected to the upper side end of the first through hole, the connecting block is positioned between the first through hole and the second through hole, the folding block and the hooking and guiding head are integrated and are arranged at the lowest end position of the folding block, the first through hole, the second through hole and the hooking and guiding head are all integrated structures, the first through hole is in a state that the front port diameter is large and the rear port diameter is small, the second through hole is in a state that the front port diameter is small and the rear port diameter is large, and the connecting block is made of resin and has strong rigidity, thereby playing a role in supporting and connecting.

As a further improvement of the invention, the slow guide area is provided with a lower abutting edge, a pressure accommodating cavity, a squeezing edge, a corner fixing block, an auxiliary block and a dragging section, the lower abutting edge and the slow guide area are integrated and are arranged at the front side position of the slow guide area, the squeezing edge is arranged at the rear side position of the slow guide area, the corner fixing block is fixedly arranged at two side ends of the lower abutting edge, the auxiliary block is embedded in the pressure accommodating cavity, the auxiliary block is in clearance fit connection with the inner side of the lower abutting edge, one end of the dragging section is connected with the auxiliary block, the lower abutting edge and the squeezing edge are made of rubber materials, and have certain toughness and can be compressed and stretched, the corner fixing block is in a triangular state, the stability of the corner fixing block is better, the number of the auxiliary blocks is three, and the head end of the triangular cone is in a downward state.

As a further improvement of the invention, the angle abutting block is provided with a retention flap, an angle stabilizing end and a position stabilizing layer, the retention flap is embedded and connected on the upper wall surface in the angle abutting block, the angle stabilizing end is fixedly arranged below the retention flap, the position stabilizing layer is connected on two sides of the angle stabilizing end, and the retention flap is in an elliptical flap state, so that the uniform stress is ensured.

As a further improvement of the invention, the position stabilizing layer is provided with a pointed insertion section, an inner pressure layer, a supporting and pressing arc block, an inner edge support strip and a pocket support capsule body, the pointed insertion section is positioned at the most lateral corner of the position stabilizing layer, the supporting and pressing arc block is embedded and installed in the inner pressure layer, the top end of the supporting and pressing arc block is in clearance fit connection and movable fit with one side of the inner edge support strip, the inner edge support strip is positioned below the pocket support capsule body and is in movable fit, one side edge of the pocket support capsule body is movably connected with the inner side edge of the position stabilizing layer, the number of the supporting and pressing arc blocks is four, the supporting and pressing arc blocks are made of synthetic rubber and have elasticity, the number of the pocket support capsule bodies is three, the pocket support capsule bodies are in a semi-.

Compared with the prior art, the invention has the following beneficial effects:

1. because the gaseous of each position rush current entering into the edge end has the unhurried current in colluding guide head department, its punching press is to propping the limit down and causing the extrusion force, make and to push down the limit arc to the inflection, and can hold gas temporarily, it is pressed and do the trend compression activity to assist the piece contact, drag the section of linking, the front side expansion of first opening, make partial gas through first opening leading-in to colluding guide head inboard, move together with the gaseous of propping limit water conservancy diversion down, play the impact zone effect to it, make the gas motion active, partial gas flows through from the second opening, thereby avoid gas to push down the limit inboard because by the direction sluggish current occasionally, and cause the gathering, make the gas circulation slow.

2. The section is inserted to the point extends the direction of inserting and plays the guide effect for holistic extension direction, interior pressure layer receives the roof pressure, make to prop and press the arc piece pressurized and take place the arc to the inflection, extend the length behind the holistic pressurized, the interior strake of supporting is moved in the top simultaneously, interior strake extrusion pocket holds in the palm the utricule, make it tend to horizontal exhibition flat, laminate in the pipeline inboard more, make the angle support piece bear the roof pressure of making an uproar ware and for its isolated and pipeline inboard contact, avoid producing the acutely and touch and send the secondary noise.

Drawings

Fig. 1 is a schematic structural diagram of a noise reduction device applied to a pneumatic sander according to the present invention.

Fig. 2 is a schematic view of an internal front view structure of an air inlet according to the present invention.

Fig. 3 is a schematic top view of the interior of an air inlet according to the present invention.

Fig. 4 is a schematic diagram of an internal side view structure of a flap-abutting block according to the present invention.

Fig. 5 is a schematic diagram of an internal side view of a hook guide head according to the present invention.

Fig. 6 is a schematic diagram of an internal side view structure of a slow conduction region according to the present invention.

Fig. 7 is a schematic diagram of an internal side view structure of a corner block according to the present invention.

FIG. 8 is a schematic diagram of an internal side view of a stabilizer layer according to the present invention.

In the figure: the device comprises an air inlet-1, a motor protective shell-2, a polishing shell-3, a polishing head-4, a switch pressing handle-5, a pipeline-11, a noise reducer-12, a flap supporting block-13, a corner supporting block-14, a fixed block-a 1, a hooking head-a 2, a slow guide area-a 21, a first through opening-a 22, a second through opening-a 23, a connecting block-a 24, a shrinking block-a 25, a lower supporting edge-211, a pressure accommodating cavity-212, a squeezing edge-213, a fixed corner block-214, an auxiliary block-215, a connecting section-216, a retaining flap-b 1, a corner stabilizing end-b 2, a position stabilizing layer-b 3, a pointed insertion section-b 31, an inner pressure layer-b 32, a supporting arc block-b 33, an inner supporting strip-b 34 and a supporting capsule-b 35.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example 1:

as shown in figures 1 to 6:

the invention provides noise reduction equipment applied to a pneumatic grinding machine, which structurally comprises an air inlet 1, a motor protective shell 2, a grinding shell 3, a grinding head 4 and a switch pressing handle 5, wherein one end of the air inlet 1 is connected with the outer side of the motor protective shell 2, the grinding shell 3 is fixedly embedded at the bottom of the motor protective shell 2, the grinding head 4 is movably connected to the bottom of the grinding shell 3, one end of the switch pressing handle 5 is connected with the top of the air inlet 1, and the switch pressing handle 5 is movably arranged above the motor protective shell 2.

The air inlet 1 is provided with a pipeline 11, a noise reducer 12, a flap abutting block 13 and an angle abutting block 14, the noise reducer 12 is located at the middle position of the inner side of the pipeline 11, the outer wall of the flap abutting block 13 is attached to the inner side wall surface of the pipeline 11, the inner wall of the flap abutting block 13 is fixedly connected with the outer wall surface of the noise reducer 12, the angle abutting block 14 is in clearance fit connection with the flap abutting block 13, the flap abutting blocks 13 are four in a semi-elliptical shape and located at four positions of the noise reducer 12, the annular abutting block is connected to the inner side surface of the pipeline 11, the angle abutting blocks 14 are four and located at four corner end positions of the noise reducer 12 respectively, the flap abutting blocks 13 and the angle abutting blocks 14 fill gaps between the noise reducer 12 and the pipeline 11, so that the entering air can only flow from the middle of the noise reducer 12, and the angle abutting blocks 14 assist the flap abutting block 13 in stabilizing the position when the air flow.

Wherein, the lamella is supported piece 13 and is equipped with fixed block a1, colludes guide head a2, fixed block a1 is embedded and is connected at the rear end of colluding guide head a2, fixed block a1 is the silica gel material, collude guide head a2 and be the overhead kick state, the toughness that fixed block a1 self has makes it play sealed effect, colludes guide head a2 and has cushioning effect and air current guide effect to the gas of dashing into.

Wherein the hooking head a2 is provided with a slow guiding area a21, a first through opening a22, a second through opening a23, a connecting block a24 and a shrinking block a25, the front end of the slow guiding area a21 is connected to the upper end of the first through opening a22, the connecting block a24 is located between the first through opening a22 and the second through opening a23, the shrinking block a25 and the hooking head a2 are integrated and are arranged at the lowest end position of the shrinking block a25, the first through opening a22, the second through opening a23 and the hooking head a2 are all integrated structures, the first through opening a22 is in a state that the front port diameter is large and the rear port diameter is small, the second through opening a23 is in a state that the front port diameter is small and the rear port diameter is large, the connecting block a24 is made of resin and has strong rigidity and plays a role of supporting connection, the shrinking block a25 is made of soft rubber, and the first through opening a 5928 is prevented from entering the lower end of the first through opening a21, the gas guided out along with the slow conducting area a21 moves, when the gas is gathered at the inner side of the slow conducting area a21 too much, the second port a23 allows part of the gas to flow out, the gas is driven to move by the gas outside the lower end of the second port a23, and the flexibility of the folding block a25 enables the gas to generate air pressure when the gas circulates, so that the gas is compressed along with the air pressure, and the gas can conveniently circulate.

Wherein, the buffer guiding area a21 is provided with a lower abutting edge 211, a pressure containing cavity 212, a squeezing edge 213, a corner fixing block 214, an auxiliary block 215 and a connecting segment 216, the lower abutting edge 211 and the buffer guiding area a21 are integrated and are arranged at the front side position of the buffer guiding area a21, the squeezing edge 213 is arranged at the rear side position of the buffer guiding area a21, the corner fixing block 214 is fixedly arranged at the two side ends of the lower abutting edge 211, the auxiliary block 215 is embedded and arranged in the pressure containing cavity 212, the auxiliary block 215 is in clearance fit connection with the inner side of the lower abutting edge 211, one end of the connecting segment 216 is connected with the auxiliary block 215, the lower abutting edge 211 and the squeezing edge 213 are both made of rubber materials and have certain toughness and can be compressed and stretched, the corner fixing block 214 is in a triangular state, the stabilizing force is good, the auxiliary block 215 is provided with three, the head end of the triangular cone is in a downward state, the lower abutting edge 211 is curved along with the gas buffering force and has a buffering effect on the gas flow, the auxiliary block 215 inclines to the left along with the compression of the lower abutting edge 211, and has a pulling force on the connecting section 216, so that the compression edge 213 is compressed, but the toughness of the compression edge 213 ensures the tightness of the connection above.

The specific use mode and function of the embodiment are as follows: when a person is connected with a power supply, the air inlet 1 operates and conducts the air to the motor protective shell 2 to enable the driving motor to have power, so that the polishing head 4 can polish and polish a layer to be polished, outside air is sucked into the inner side of the pipeline 11, gaps between four directions of the noise reducer 12 and the inner side of the pipeline 11 are filled and can only flow from the middle of the noise reducer 12, air entering the edge end from each direction of impact flow can flow slowly at the position of the hook head a2, the air towards the edge end is blocked by the buffer area a21, the punching force of the air can generate extrusion force on the lower butt edge 211, the arc direction of the lower butt edge 211 is bent, the auxiliary block 215 is contacted and pressed to perform compression movement, the connecting section 216 is dragged to compress the compression edge 213, the front side opening of the first through opening a22 is expanded, part of the air is guided to the inner side of the hook head a2 through the first through opening 22 and moves together with the air guided by the lower edge 211, meanwhile, the effect of buffering and carrying the guided gas is achieved, more gas is gathered at the inner side of the buffering area a21, and part of gas flows out from the second opening a23, so that the gathering caused by the fact that the gas flows slowly when being guided at the inner side of the lower abutting edge 211 is avoided, and the gas is enabled to flow slowly.

Example 2:

as shown in fig. 7 to 8:

the angle supporting block 14 is provided with a retention flap b1, an angle stabilizing end b2 and an angle stabilizing layer b3, the retention flap b1 is embedded in the upper wall surface inside the angle supporting block 14, the angle stabilizing end b2 is fixedly installed below the retention flap b1, the angle stabilizing layer b3 is connected to two sides of the angle stabilizing end b2, the retention flap b1 is in an elliptical flap state, the stress is guaranteed to be uniform, and the angle stabilizing end b2 is fixed and can be restored to the original state after being stretched.

Wherein, steady layer b3 is equipped with sharp inserting section b31, interior pressure layer b32, props and presses arc block b33, interior pressure bar b34, pocket support utricule b35, sharp inserting section b31 is located steady layer b 3's most lateral angle position, prop and press arc block b33 embedding installation inside inner pressure layer b32, prop and press arc block b33 top and interior pressure bar b34 one side clearance fit connection and clearance fit, interior pressure bar b34 is located pocket support utricule b35 below and clearance fit, pocket support utricule b35 one side and steady layer b3 inboard side swing joint, prop and press arc block b33 and be equipped with four, and synthetic rubber material, have elasticity, pocket support utricule b35 is equipped with three, is the half ellipse form, and the heat plastic body is equipped with utricule, sharp inserting section b31 makes when being compressed, position layer b3, the leading-in clearance, play the whole extension direction and stretch the guide function of pressure block b, let the pocket support the pressure bar 33 to pass on the conduction at the same time of high elasticity, 35, so that one end of the pocket supporting bag body b35 is pressed, the other end is flattened, and the pocket supporting bag body b35 is more tightly attached to the outer side while bearing the pressure.

The specific use mode and function of the embodiment are as follows: when gas enters, the impact force on the hooking guide head a2 is large, so that a gap between the hooking guide head a2 and the noise reducer 12 is large, the noise reducer 12 overturns, at the moment, the sharp insertion section b31 extends and inserts the gap to reversely play a role in guiding the overall extension, the inner pressure layer b32 is pressed, the supporting and pressing arc block b33 inside the noise reducer is pressed to generate arc deflection, and meanwhile, the supporting and pressing arc block b33 pushes the inner edge supporting strip b34, so that the inner edge supporting strip b34 extrudes the bag supporting bag body b35, the bag supporting bag body tends to be transversely flattened and is more attached to the inner side of the pipeline 11, the corner edge supporting block 14 bears the top pressure of the noise reducer 12 and is isolated from being in contact with the inner side of the pipeline 11, and the generation of contact with the.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims (6)

1. The utility model provides an equipment of making an uproar falls in pneumatic polisher, its structure includes air inlet (1), motor protecting case (2), the shell of polishing (3), polishes head (4), switch and presses handle (5), the one end of air inlet (1) is connected with motor protecting case (2) outside, the bottom position at motor protecting case (2) is installed in casing (3) the embedment of polishing, polish head (4) swing joint in the bottom of shell of polishing (3), the one end of switch pressure handle (5) is connected with air inlet (1) top, switch pressure handle (5) activity in motor protecting case (2) top, its characterized in that:

the noise reduction device is characterized in that the air inlet (1) is provided with a pipeline (11), a noise reducer (12), a petal abutting block (13) and an angle abutting block (14), the noise reducer (12) is located in the middle of the inner side of the pipeline (11), the outer wall of the petal abutting block (13) is attached to the inner side wall face of the pipeline (11), the inner wall of the petal abutting block (13) is fixedly connected with the outer wall face of the noise reducer (12), and the angle abutting block (14) is in clearance fit connection with the petal abutting block (13).

2. A noise reducing apparatus for a pneumatic sander as set forth in claim 1, wherein: the flap abutting block (13) is provided with a fixed block (a 1) and a hook guide head (a 2), and the fixed block (a 1) is fixedly connected to the rear end of the hook guide head (a 2).

3. A noise reducing apparatus for a pneumatic sander as set forth in claim 2, wherein: the hooking and guiding head (a 2) is provided with a slow guiding area (a 21), a first through opening (a 22), a second through opening (a 23), a connecting block (a 24) and a folding block (a 25), the front end of the slow guiding area (a 21) is connected to the upper side end of the first through opening (a 22), the connecting block (a 24) is located between the first through opening (a 22) and the second through opening (a 23), the folding block (a 25) and the hooking and guiding head (a 2) are integrated and are arranged at the lowest end position of the folding block (a 25), and the first through opening (a 22), the second through opening (a 23) and the hooking and guiding head (a 2) are all integrated structures.

4. A noise reducing apparatus for use in a pneumatic sander as set forth in claim 3, wherein: lead district (a 21) slowly and be equipped with down support limit (211), hold and press chamber (212), crowded limit (213), solid angle piece (214), assist and lead district (a 21) for the integration and establish in the leading flank position of slowing lead district (a 21) down, crowded limit (213) are established at the trailing flank position of delaying lead district (a 21), gu angle piece (214) fixed mounting is supported the both sides end of limit (211) down, assist and install in the embedding of piece (215) and hold and press chamber (212) inside, assist piece (215) and support the inboard clearance fit connection of limit (211) down, it is connected with assisting to lead a (216) one end and assist piece (215) to link.

5. A noise reducing apparatus for a pneumatic sander as set forth in claim 1, wherein: the angle support block (14) is provided with a retention flap (b 1), an angle stabilizing end (b 2) and an angle stabilizing layer (b 3), the retention flap (b 1) is embedded and connected on the inner upper wall surface of the angle support block (14), the angle stabilizing end (b 2) is fixedly installed below the retention flap (b 1), and the angle stabilizing layer (b 3) is connected on two sides of the angle stabilizing end (b 2).

6. A noise reducing apparatus for use in a pneumatic sander as set forth in claim 5, wherein: steady position layer (b 3) is equipped with the point and inserts section (b 31), interior pressure layer (b 32), props and presses arc piece (b 33), interior strake (b 34), pocket support utricule (b 35) of keeping to, the point is inserted section (b 31) and is located the most lateral angle position of steady position layer (b 3), prop and press arc piece (b 33) embedding installation inside at inner pressure layer (b 32), prop and press arc piece (b 33) top and interior strake (b 34) one side clearance fit connection and clearance fit, interior strake (b 34) of keeping to be located pocket support utricule (b 35) below and clearance fit, pocket support utricule (b 35) one side and steady position layer (b 3) inboard side swing joint.

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