CN217292216U - Electric hammer with dust suction device - Google Patents

Abstract

The application provides an electric hammer with dust extraction belongs to electric tool technical field. The electric hammer with the dust suction device comprises an electric hammer component and a dust suction component. The electric hammer component includes electric hammer main part and drill bit, the drill bit install in the drive end in electric hammer main part is from the area, the dust absorption component is including flexible dust keeper and dust absorption piece, flexible dust keeper includes installation department and pars contractilis, the installation department includes magnet ring A and the magnet ring B that the longitudinal section is "L" shape, magnet ring B cover is located electric hammer main part shell is close to the position of front end, the inherent activity of magnet ring B inner wall gluing hugs closely in the anti-skidding rubber pad of electric hammer main part shell, magnet ring A by spacing adsorption in on the magnet ring B, the dust absorption piece with pars contractilis do not is connected to magnet ring A outer wall below and outer end front side, just the pars contractilis covered and is located the drill bit outside. This application be convenient for dust absorption component realize fast with the dismouting of electric hammer component.

Description

Electric hammer with dust suction device

Technical Field

The application relates to the field of electric tools, in particular to an electric hammer with a dust suction device.

Background

The electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism. The electric hammer utilizes the principle of piston motion, compresses gas to impact a drill bit, does not need much strength of hands, can open holes of 6-100 mm on hard materials such as concrete, bricks, stones and the like, has higher hole opening efficiency on the materials, but cannot open holes on metal.

Through the retrieval, chinese patent application No. CN202021918832.9 discloses an electric hammer with dust extraction, it has designed cover and has located the fixed cover and the movable sleeve of scalable activity outside the drill bit, utilize fixed cover and movable sleeve can constitute dustproof construction and block the dust that outwards stretchs in the operation of drill bit trompil, it has also designed the collecting box that is used for the dust collection, at collecting box internally mounted dust absorption fan and filter screen structure, the collecting box passes through connecting pipe and movable sleeve intercommunication, during the use, can start the fan and lead the dust to the collecting box in through the connecting pipe, make the dust stay inside the collecting box after the filter screen interception blocks, so the design can effectively prevent dust and dust absorption, reduce the dust and outwards stretch.

But above-mentioned scheme still has the defect, and its fixed cover and the equal fixed connection of collecting box are on the electric hammer casing, are not convenient for separate fast when the electric hammer damages, more can't detach the back with dust collection structure and install fast at other electric hammers and use, have increased the device's use cost intangibly.

SUMMERY OF THE UTILITY MODEL

In order to compensate for the above deficiency, the application provides an electric hammer with dust extraction, aims at improving the dust collection structure among the correlation technique and is not convenient for and electric hammer shell realizes quick assembly disassembly's problem.

The embodiment of the application provides an electric hammer with a dust suction device, which comprises an electric hammer component and a dust suction component.

The electric hammer member includes an electric hammer main body and a drill bit, and the drill bit and the electric hammer main body are fixed.

The dust absorption component is including flexible dust keeper and dust absorption piece, flexible dust keeper includes installation department and pars contractilis, the installation department includes magnet ring A and the magnet ring B that the longitudinal section is "L" shape, magnet ring B cover is located the position that electric hammer main body shell is close to the front end, magnet ring B inner wall glue inherent activity hug closely in electric hammer main body shell's anti-skidding rubber pad, magnet ring A by spacing absorption in on the magnet ring B, dust absorption piece with pars contractilis do not is connected to magnet ring A outer wall below and outer end front side, just the pars contractilis cover is located the drill bit outside.

In the above-mentioned realization in-process, earlier the magnet ring B cover is close to a corner of its front end at electric hammer main body shell, specifically cup joint the position and refer to figure 2, antiskid rubber pad has been designed in magnet ring B and electric hammer main body shell's laminating department, the gliding situation around magnet ring B takes place on electric hammer main body shell has been reduced, adsorb magnet ring A in magnet ring B outer lane again, so just so make the pars contractilis follow magnet ring A cover and locate the drill bit outer lane, also make the dust absorption piece follow magnet ring A link up with electric hammer main body shell below smoothly, the dismouting with the electric hammer component is realized fast to the dust absorption component of being convenient for from this, make things convenient for the reuse of dust absorption component, the whole use cost of changing of the device has been reduced indirectly.

In a specific embodiment, the magnet ring B and the magnet ring a are magnetically opposite, and the magnet ring B is installed at one corner of the front end of the casing of the electric hammer main body.

In the implementation process, the magnet ring B and the magnet ring A which are opposite in magnetism can be stably adsorbed together, so that the dust collection component can be quickly disassembled and assembled with the electric hammer component, and meanwhile, the position of the magnet ring B is located at an annular corner at the front end of the electric hammer main body shell, and the situation that the magnet ring B slides backwards on the electric hammer main body shell is reduced.

In a specific embodiment, the telescopic part comprises a fixed sleeve and a movable sleeve which is slidably connected inside the fixed sleeve, the fixed sleeve is fixed to the magnet ring a, and the movable sleeve is covered outside the drill bit.

In the implementation process, the fixed sleeve and the movable sleeve can be fixed to the electric hammer main body along with the magnet ring A, the drill bit can be covered by the design of the fixed sleeve and the movable sleeve, and the flying dust condition in the drill bit construction process is reduced.

In a specific embodiment, the pars contractilis still includes two sleeves, two loop bars and two springs, two the sleeve is connected to respectively fixed cover both sides and about its symmetrical design, the loop bar cover is located correspondingly in the sleeve, and its outer end with the movable sleeve front end is fixed, the both ends of spring respectively with correspond the sleeve inside with the loop bar inner end is fixed.

In the above-mentioned realization process, the driving force that utilizes the spring can be with the fixed cover of movable sleeve orientation outside pulling for the sealing rubber pad of movable sleeve front end and the laminating of external construction face make the dustproof effect of keeping off dirt of performance that the movable sleeve can be better so.

In a specific embodiment, sealing rubber gaskets are adhered to the front end and the outer ring of the movable sleeve, the sealing rubber gasket on the outer ring of the movable sleeve is in contact with the inner wall of the fixed sleeve, and the sealing rubber gasket on the front end of the movable sleeve is in contact with an external construction surface.

In the implementation process, the sealing rubber pad designed on the outer ring of the movable sleeve can increase the friction force between the movable sleeve and the fixed sleeve, indirectly reduce the probability that the movable sleeve retreats in the construction process, and the sealing rubber pad designed on the front end of the movable sleeve can be attached to the construction surface of the movable sleeve, so that the movable sleeve can be used for better preventing dust and blocking dust.

In a specific embodiment, the upper part of the dust suction piece is fixed with a connecting block, and the connecting block is fixed with the lower side of the outer ring of the magnet ring A.

In the implementation process, the dust collection piece and the magnet ring A can be fixed by the design of the connecting block, so that the dust collection piece can be fixed on the shell of the electric hammer main body along with the magnet ring A.

In a specific embodiment, the dust collecting piece comprises a collecting box, a connecting pipe, a fan and a filter screen, the collecting box is connected to the bottom of the connecting block, two ends of the connecting pipe are respectively communicated to the bottom of the front side of the movable sleeve and the front side wall of the collecting box, the fan is installed on the inner wall of the collecting box, an air draft area is communicated with the inner space of the connecting pipe, the collecting box faces to one side wall of the air exhaust direction of the fan, an air outlet is formed in the side wall, and the filter screen is arranged in the air outlet.

In the above-mentioned realization process, start the fan and utilize the connecting pipe in with the cover of activity diffuse dust introduction collecting box, the dust bottom in the collecting box is fallen to the stopping of filter screen, so be convenient for realize the dust absorption operation among the electric hammer operation process.

In a specific implementation scheme, limit stops are arranged on four sides of the inner wall of the collection box, which are located at the air outlet, and are attached to the inner side face of the frame of the filter screen, slide rails are connected to two sides of the outer wall of the collection box, which are located at the air outlet, and limit stop rods are connected in the slide rails in a sliding manner and are attached to the outer side face of the frame of the filter screen.

In the above-mentioned realization process, utilize limit stop can restrict the filter screen and move towards the inside in the collecting box, utilize the slide rail cooperation limit stop can limit the filter screen and move towards the collecting box outside, when needing to dismantle the filter screen, push up limit stop and make it break away from the slide rail and can take off the filter screen from the air outlet and change or clear up, promoted the filter screen and torn open the efficiency of changing.

In a specific embodiment, the bottom of the collecting box is in a funnel-shaped design, the bottommost part of the collecting box is communicated with a blanking channel, and a sealing cover is screwed on the blanking channel.

In the implementation process, the accumulated dust can be discharged from the blanking channel by unscrewing the sealing cover.

In a specific embodiment, a handle is arranged on one side of the outer wall of the collecting box, which is close to the drill bit.

In the implementation process, the handle designed on the collecting box replaces an auxiliary handle at the position close to the drill bit of the traditional electric hammer, so that the stability of connection between the dust collection component and the electric hammer component can be improved when an operator holds the handle.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic overall external structure view of an electric hammer with a dust suction device provided in an embodiment of the present application;

fig. 2 is a schematic partial sectional view of an electric hammer with a dust suction device according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a dust-absorbing member according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a telescopic portion according to an embodiment of the present disclosure;

FIG. 5 is an enlarged cross-sectional view taken along line A of FIG. 4 according to an exemplary embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an external positional relationship among a slide rail, a limit stop lever and a filter screen according to an embodiment of the present disclosure;

fig. 7 is a schematic structural view of a cross-sectional position relationship among the slide rail, the limit stop lever and the filter screen according to the embodiment of the present application.

In the figure: 10-an electric hammer member; 110-an electric hammer body; 120-a drill bit; 20-a dust extraction member; 210-telescoping dust guard; 211-a mounting portion; 2111-magnet ring A; 2112-magnetic ring B; 2113-antiskid rubber pad; 212-a telescoping section; 2121-fixing sleeve; 2122-a movable sleeve; 2123-sleeve; 2124-loop bar; 2125-spring; 220-a dust extraction; 221-a collection box; 222-a connecting tube; 223-a fan; 224-a filter screen; 225-limit stop; 226-a slide rail; 227-limit stop lever; 228-blanking channel.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, the present application provides an electric hammer with a dust suction device, which includes a hammer member 10 and a dust suction member 20.

Wherein, the electric hammer component 10 is beneficial to the operation of drilling on the construction surface of the building; the dust suction member 20 can be rapidly assembled with the hammer member 10, by which the influence of dust on the outside air and the human body during the boring operation can be reduced.

Referring to fig. 1 and 2, the electric hammer member 10 includes an electric hammer body 110 and a drill 120, the drill 120 is fixed to the electric hammer body 110, and specifically, the installation method of the drill 120 and the driving end of the electric hammer body 110 is the prior art and will not be described herein again.

Referring to fig. 1-7, the dust suction member 20 includes a dust suction member 210 and a dust suction member 220, the dust suction member 210 includes a mounting portion 211 and an expansion portion 212, the mounting portion 211 includes a magnet ring a2111 and a magnet ring B2112 with an L-shaped longitudinal section, the magnet ring B2112 is sleeved on the position near the front end of the housing of the hammer body 110, the inner wall of the magnet ring B2112 is adhered to an anti-slip rubber pad 2113 of the housing of the hammer body 110, the magnet ring a2111 is limited and adsorbed on the magnet ring B2112, the dust suction member 220 and the expansion portion 212 are respectively connected to the lower portion of the outer wall of the magnet ring a2111 and the front side of the outer end, and the expansion portion 212 is covered outside the drill 120.

In this embodiment, the magnet ring B2112 and the magnet ring a2111 are magnetically opposed, and the magnet ring B2112 is mounted at a corner of the front end of the housing of the hammer body 110. The magnet ring B2112 and the magnet ring A2111 which are opposite in magnetism can be stably adsorbed together, so that the dust collection component 20 can be rapidly assembled and disassembled with the electric hammer component 10, meanwhile, the magnet ring B2112 is arranged at one corner of the front end of the shell of the electric hammer main body 110, and the situation that the magnet ring B2112 slides backwards on the shell of the electric hammer main body 110 is reduced.

In this embodiment, the telescopic portion 212 includes a fixed sleeve 2121 and a movable sleeve 2122 slidably received therein, the fixed sleeve 2121 is fixed to the magnet ring a2111, and the movable sleeve 2122 covers the outside of the drill 120. The fixing sleeve 2121 can be fixed to the magnet ring a2111 by strong glue or screws or other methods in the prior art, both sides of the inner wall of the fixing sleeve 2121 are provided with tracks, both sides of the outer wall of the movable sleeve 2122 are provided with bumps in a uniform manner, the bumps slide in the corresponding tracks, the fixing sleeve 2121 and the movable sleeve 2122 which are designed to slide can be fixed to the electric hammer main body 110 along with the magnet ring a2111, and the design of the fixing sleeve 2121 and the movable sleeve 2122 can also cover the drill bit 120, so that the flying dust during the construction process of the drill bit 120 is reduced.

The telescopic portion 212 further includes two sleeves 2123, two rods 2124 and two springs 2125, the two sleeves 2123 are respectively connected to two sides of the fixed sleeve 2121 by screws and are symmetrically designed with respect to the fixed sleeve, the rods 2124 are sleeved in the corresponding sleeves 2123, the outer ends of the rods are fixed to the front end of the movable sleeve 2122 by screws, and two ends of the spring 2125 are respectively welded to the inner portion of the corresponding sleeve 2123 and the inner end of the rod 2124. Wherein, the driving force of the spring 2125 can pull the movable sleeve 2122 towards the outside of the fixed sleeve 2121, so that the sealing rubber pad at the front end of the movable sleeve 2122 is attached to the external construction surface, and the movable sleeve 2122 can better play the role of dust prevention and dust retention.

The front end and the outer ring of the movable sleeve 2122 are both adhered with sealing rubber pads by strong glue, the sealing rubber pad on the outer ring of the movable sleeve 2122 is contacted with the inner wall of the fixed sleeve 2121, and the sealing rubber pad on the front end is contacted with the external construction surface. The friction force between the movable sleeve 2122 and the fixed sleeve 2121 can be increased by the sealing rubber pad designed on the outer ring of the movable sleeve 2122, so that the probability of backward movement of the movable sleeve 2122 in the construction process is indirectly reduced, and the fitting degree between the movable sleeve 2122 and the construction surface can be increased by the sealing rubber pad designed on the front end of the movable sleeve 2122, so that dust can be better prevented by the movable sleeve 2122.

In this embodiment, the upper part of the dust suction member 220 is fixed with a joint block by a screw, and the joint block is fixed with a lower side of the outer ring of the magnet ring a2111 by a screw. The dust-absorbing piece 220 and the magnet ring A2111 can be fixed by the design of the connecting block, so that the dust-absorbing piece 220 can be fixed on the shell of the electric hammer main body 110 along with the magnet ring A2111.

The dust collection piece 220 comprises a collection box 221, a connecting pipe 222, a fan 223 and a filter screen 224, the collection box 221 is connected to the bottom of the connecting block through screws, two ends of the connecting pipe 222 are respectively communicated to the bottom of the front side of the movable sleeve 2122 and the front side wall of the collection box 221, the fan 223 is installed on the inner wall of the collection box 221, an air draft area is communicated with the inner space of the connecting pipe 222, specifically, fixing frames are installed on two sides of a motor carried by the fan 223 through screws, and the fixing frames are fixed to the inner wall of the collection box 221 through screws. An air outlet is opened on one side wall of the collecting box 221 facing the air exhaust direction of the fan 223, and the filter screen 224 is arranged in the air outlet. Wherein, the starting fan 223 uses the connection pipe 222 to introduce the dust diffused in the movable sleeve 2122 into the collection box 221, and the dust falls down to the bottom of the collection box 221 by the obstruction of the filter screen 224.

The inner wall of the collection box 221 is provided with limit stops 225 on four sides of the air outlet, wherein the limit stops 225 and the inner wall of the collection box 221 are designed in an integrated manner. The limit stop 225 is attached to the inner side of the frame of the filter screen 224, the outer wall of the collection box 221 is connected to slide rails 226 at two sides of the air outlet through screws, and the design of the slide rails 226 is shown in fig. 6 and 7. A limit stop lever 227 is connected in the slide rail 226 in a sliding manner, and the limit stop lever 227 is attached to the outer side surface of the frame of the filter screen 224. In this application, utilize limit stop 225 can restrict filter screen 224 and move towards the inside in the collecting box 221, utilize slide rail 226 cooperation limit stop lever 227 can limit filter screen 224 and move towards the collecting box 221 outside, when filter screen 224 needs to be dismantled, push up limit stop lever 227 and make it break away from slide rail 226 and can follow the air outlet with filter screen 224 and take off change or clearance, promoted the efficiency that filter screen 224 torn open and changed.

The bottom of the collecting box 221 is designed in a funnel shape, the bottommost part of the collecting box is communicated with a blanking channel 228, and a sealing cover is screwed on the blanking channel 228. Specifically, the inner wall of the sealing cover is provided with internal threads, the outer wall of the blanking channel 228 is provided with external threads, the sealing cover and the blanking channel are screwed by the internal and external threads, and accumulated dust can be discharged from the blanking channel 228 by unscrewing the sealing cover.

A handle is mounted on one side of the outer wall of the collecting box 221 close to the drill 120 through screws. The handle designed on the collection box 221 replaces the auxiliary handle of the conventional electric hammer near the drill 120, so that the operator can increase the stability of the connection between the dust suction member 20 and the electric hammer member 10 when holding the handle.

The working principle of the electric hammer with the dust suction device is as follows:

firstly, the magnet ring B2112 is sleeved at a corner of the shell of the electric hammer main body 110 close to the front end of the shell, the specific sleeving position refers to fig. 2, an anti-skid rubber pad 2113 is designed at the joint of the magnet ring B2112 and the shell of the electric hammer main body 110, the situation that the magnet ring B2112 slides back and forth on the shell of the electric hammer main body 110 is reduced, and then the magnet ring A2111 is adsorbed on the outer ring of the magnet ring B2112, so that the expansion part 212 is covered on the outer ring of the drill bit 120 along with the magnet ring A2111, and the dust collection piece 220 is smoothly connected with the lower part of the shell of the electric hammer main body 110 along with the magnet ring A2111, thereby facilitating the quick realization of the disassembly and assembly of the dust collection component 20 and the electric hammer component 10.

When the electric hammer is operated, the operating handle arranged on the shell of the hand-held electric hammer main body 110 and the handle on the outer wall of the collecting box 221 indirectly make the sealing rubber pad at the front end of the movable sleeve 2122 attached to the external construction surface by the driving force of the spring 2125, the fan 223 is started to introduce the dust diffused in the movable sleeve 2122 into the collecting box 221 by the connecting pipe 222, the dust falls to the bottom in the collecting box 221 through the blocking of the filter screen 224, the accumulated dust can be discharged from the discharging channel 228 by unscrewing the sealing cover, and the limit stop lever 227 is pushed upwards to separate from the sliding rail 226, so that the filter screen 224 can be taken down from the air outlet for replacement or cleaning.

It should be noted that the specific model specifications of the electric hammer main body 110, the drill 120, the magnet ring a2111, the magnet ring B2112, the spring 2125, the fan 223 and the filter screen 224 need to be determined according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the hammer body 110 and the blower 223 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An electric hammer with a dust suction device is characterized by comprising

An electric hammer member (10), the electric hammer member (10) comprising an electric hammer body (110) and a drill bit (120), the drill bit (120) and the electric hammer body (110) being fixed;

a dust suction member (20), the dust suction member (20) including a telescopic dust guard (210) and a dust suction member (220), the telescopic dustproof piece (210) comprises a mounting part (211) and a telescopic part (212), the mounting part (211) comprises a magnet ring A (2111) and a magnet ring B (2112) with an L-shaped longitudinal section, the magnet ring B (2112) is sleeved at the position of the shell of the electric hammer main body (110) close to the front end, the inner wall of the magnet ring B (2112) is stuck with an anti-skid rubber pad (2113) which is movably clung to the shell of the electric hammer main body (110), the magnet ring A (2111) is limited and adsorbed on the magnet ring B (2112), the dust suction piece (220) and the telescopic part (212) are connected to the lower part of the outer wall of the magnet ring A (2111) and the front side of the outer end of the outer wall of the magnet ring A (2111) respectively, and the telescopic part (212) covers the outer side of the drill bit (120).

2. The electric hammer with dust suction device of claim 1, wherein the magnet ring B (2112) and the magnet ring a (2111) are magnetically opposite, and the magnet ring B (2112) is installed at a corner of the front end of the housing of the electric hammer main body (110).

3. The electric hammer with dust suction device according to claim 1, wherein the telescopic part (212) comprises a fixed sleeve (2121) and a movable sleeve (2122) slidably connected therein, the fixed sleeve (2121) is fixed to the magnet ring a (2111), and the movable sleeve (2122) covers the outer side of the drill bit (120).

4. The electric hammer with dust collector according to claim 3, wherein the telescopic portion (212) further comprises two sleeves (2123), two sleeves (2124) and two springs (2125), the two sleeves (2123) are respectively connected to two sides of the fixed sleeve (2121) and symmetrically designed with respect to the fixed sleeve, the sleeves (2124) are sleeved in the corresponding sleeves (2123) and the outer ends thereof are fixed to the front end of the movable sleeve (2122), and two ends of the spring (2125) are respectively fixed to the inner portion of the corresponding sleeves (2123) and the inner end of the sleeves (2124).

5. The electric hammer with dust collector of claim 4, wherein the front end and the outer ring of the movable sleeve (2122) are both bonded with sealing rubber pads, the sealing rubber pads on the outer ring of the movable sleeve (2122) are in contact with the inner wall of the fixed sleeve (2121), and the sealing rubber pads on the front end are in contact with the external construction surface.

6. An electric hammer with a dust suction device according to claim 5, wherein the dust suction member (220) has a joint block fixed to an upper portion thereof, and the joint block is fixed to a lower side of the outer ring of the magnet ring A (2111).

7. The electric hammer with the dust suction device of claim 6, wherein the dust suction member (220) comprises a collection box (221), a connection pipe (222), a fan (223) and a filter screen (224), the collection box (221) is connected to the bottom of the connection block, two ends of the connection pipe (222) are respectively communicated to the bottom of the front side of the movable sleeve (2122) and the front side wall of the collection box (221), the fan (223) is installed on the inner wall of the collection box (221), an air exhaust area is communicated with the inner space of the connection pipe (222), an air outlet is opened on one side wall of the collection box (221) facing the air exhaust direction of the fan (223), and the filter screen (224) is arranged in the air outlet.

8. The electric hammer with the dust suction device according to claim 7, wherein limit stops (225) are arranged on the inner wall of the collection box (221) on four sides of the air outlet, the limit stops (225) are attached to the inner side of the frame of the filter screen (224), slide rails (226) are connected to the outer wall of the collection box (221) on two sides of the air outlet, limit stop rods (227) are connected in the slide rails (226) in a sliding manner, and the limit stop rods (227) are attached to the outer side of the frame of the filter screen (224).

9. The electric hammer with dust suction device of claim 7, wherein the collecting box (221) is funnel-shaped at the bottom, and the lowest part of the collecting box is communicated with a blanking channel (228), and a sealing cover is screwed on the blanking channel (228).

10. The electric hammer with dust suction device of claim 7, wherein a handle is installed on one side of the outer wall of the collection box (221) close to the drill bit (120).

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