CN212440504U - Convenient continuous type that changes clearance moulds board dust remover - Google Patents

Abstract

The utility model discloses a convenient continuous type that changes clearance moulds board dust remover, including the dust remover body, the inside recess that has seted up of dust remover body, recess and the inside intercommunication of dust remover body, the bar groove has been seted up to dust remover body inside, first spout has been seted up to bar groove both sides, first spout and bar groove intercommunication, bar inslot portion is equipped with the stabilizer bar, the inside sliding connection of first spout has the slide. The utility model discloses a set up the third spout at dust remover body top, third spout width is greater than fourth spout width, conveniently promote first slide bar more, the joining of slide makes the second slide bar can not follow the inside roll-off of fourth spout, the joining of spring makes the stabilizer bar can return original position, the joining of slider and second spout, make the fixed plate can drive first movable rod, the joining of spread groove makes the second movable rod can swing motion, increase the stability of second movable rod simultaneously.

Description

Convenient continuous type that changes clearance moulds board dust remover

Technical Field

The utility model relates to a dust remover technical field, concretely relates to convenient continuous type that changes clearance moulds fever board dust remover.

Background

The plastic sintered plate dust remover replaces the traditional cloth bag with a unique wave-shaped plastic sintered plate filter core, and the plastic sintered plate is of a rigid structure, so that the plastic sintered plate dust remover cannot deform and has no framework abrasion. The surface of the sintered plate is deeply treated, so that the pore diameter is fine and uniform, the sintered plate has hydrophobicity, and dust with high water content is not easy to adhere to the sintered plate, so that the sintered plate dust remover is the best choice when treating high water content and fibrous dust. In addition, since the high precision process of the sintered plate maintains uniform micron-sized pore size, ultra-fine dust and high-concentration dust can be processed. It can simplify secondary dust collection into primary dust collection, not only is the process convenient, but also can reduce cost and energy consumption and reduce floor area and space pipeline. At present, when a burning plate inside a burning plate dust remover on the market is damaged or periodically maintained, the burning plate is difficult to take out from the inside of the dust remover, time and labor are wasted, and the work efficiency of workers and people is influenced.

Therefore, the utility model discloses a convenient continuous type that changes clearance moulds fever board dust remover and solves above-mentioned problem very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a board dust remover burns is moulded to continuous type of convenient change clearance, through set up the third spout at dust remover body top, it is more convenient to make the first slide bar that promotes, at the inside slide that sets up of first spout, make the second slide bar can not follow the inside roll-off of fourth spout, set up the spring between stabilizer bar and bar groove, make the stabilizer bar can return original position, increase the stability of moulding the board of burning, set up the spread groove in recess inner wall one side, make the second movable rod swing motion, increase the stability of second movable rod simultaneously, with the above-mentioned weak point in the solution technology.

In order to achieve the above object, the present invention provides the following technical solutions: a continuous plastic-sintered plate dust remover convenient to replace and clean comprises a dust remover body, wherein a groove is formed in the dust remover body and is communicated with the inside of the dust remover body, a strip-shaped groove is formed in the dust remover body, first sliding grooves are formed in two sides of the strip-shaped groove and are communicated with the strip-shaped groove, a stabilizer bar is arranged in the strip-shaped groove, a sliding plate is connected in the first sliding groove in a sliding manner, one side of the outer wall of the sliding plate is fixedly connected with one end of the stabilizer bar, a spring is arranged between the stabilizer bar and the strip-shaped groove, a fixed plate is fixedly connected to one side of the stabilizer bar, away from the spring, a second sliding groove is formed in one side of the outer wall of the fixed plate, away from the stabilizer bar, a sliding block is connected in the second sliding groove in a sliding manner, a first movable rod is hinged to one side, one side of the inner wall of the groove is provided with a connecting groove which is communicated with the strip-shaped groove, the second movable rod is hinged with one side of the inner wall of the connecting groove, one end of the second movable rod, which is far away from the first movable rod, is fixedly connected with a clamping block, a plastic burning plate body is arranged inside the groove, the top of the plastic burning plate body is fixedly connected with a clamping plate, both sides of the outer wall of the clamping plate are provided with clamping grooves, the clamping block is matched with the clamping groove, a third sliding groove is arranged at the top of the dust remover body, a first sliding rod is connected in the third sliding groove in a sliding manner, a fourth sliding chute is arranged between the third sliding chute and the first sliding chute, a second sliding rod is connected in the fourth sliding chute in a sliding manner, the fourth sliding groove is communicated with the third sliding groove, the fourth sliding groove is communicated with the first sliding groove, the top of the second sliding rod is fixedly connected with the bottom end of the first sliding rod, and the bottom end of the second sliding rod is fixedly connected with the top of the sliding plate.

Preferably, the first supporting block of spread groove one side fixedly connected with is kept away from to the recess inner wall, dust remover body inner wall fixedly connected with backup pad, backup pad outer wall one side and dust remover body inner wall fixed connection, the second supporting block of dust remover body inner wall one side fixedly connected with is kept away from to the backup pad outer wall, be equipped with first baffle between recess and the dust remover body internal connection department, backup pad top fixedly connected with second baffle, the recess top articulates there is the closing door, closing door top fixedly connected with handle.

Preferably, an air inlet pipe penetrates through one side of the outer wall of the dust remover body, the air inlet pipe is communicated with the dust remover body, an air outlet pipe penetrates through one side, away from the air inlet pipe, of the outer wall of the dust remover body, the air outlet pipe is communicated with the inside of the dust remover body, a supporting column is fixedly connected to the top end of the dust remover body, an ash valve is fixedly connected to the bottom end of the dust remover body, and the ash valve is communicated with the inside of the dust remover body.

Preferably, the number of the plate bodies is set to be a plurality of, the plate bodies are uniformly distributed in the grooves, the first supporting block is located between the two plate bodies, and the second supporting block is located between the two plate bodies.

Preferably, the number of the sliding blocks is set to be multiple groups, each group is set to be two, the sliding blocks are symmetrically distributed inside the second sliding groove, and the width of the third sliding groove is larger than that of the fourth sliding groove.

Preferably, the number of the first chutes is two, the first chutes are symmetrically distributed on two sides of the strip-shaped groove, and the number of the supporting plates is two, the supporting plates are symmetrically distributed inside the dust remover body.

Preferably, one end of the spring is fixedly connected with the inside of the strip-shaped groove, the other end of the spring is fixedly connected with the outer wall of the stabilizer bar, and the width of the stabilizer bar is smaller than that of the sliding plate.

Preferably, the number of spread groove sets up to a plurality ofly, and is a plurality of spread groove evenly distributed is in recess inner wall one side, the card board width is less than the board body width of sintering.

In the technical scheme, the utility model provides a technological effect and advantage:

1. the third sliding groove is formed in the top of the dust remover body, the width of the third sliding groove is larger than that of the fourth sliding groove, the first sliding rod is more conveniently pushed, the sliding plate is added, the second sliding rod cannot slide out of the fourth sliding groove, the spring is added, the stabilizing rod can return to the original position, the sliding block and the second sliding groove are added, the fixed plate can drive the first movable rod, the connecting groove is added, the second movable rod can swing, the stability of the second movable rod is improved, and when a plastic sintered plate in the dust remover is damaged or periodically maintained, the plastic sintered plate can be quickly taken out of the dust remover, so that time and labor are saved;

2. through setting up first bracer in recess inner wall one side, the addition of first bracer, the movement track to moulding the board of burning obtains the restriction, the addition of first baffle, make the gas that needs to remove dust can not be when not removing dust, just bypass and mould the board of burning, flow from the outlet duct, the addition of second baffle, make the gas that needs to remove dust after moulding the board of burning and removing dust, just flow from the outlet duct, the addition of support column has increased the stability of this dust remover, the inside board stability greatly increased that burns that moulds of this dust remover.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the strip-shaped groove of the present invention;

fig. 3 is a main sectional view of a third chute of the present invention;

FIG. 4 is a front view of the engaging plate of the present invention;

fig. 5 is a top view of the support plate of the present invention;

fig. 6 is a front view of the fixing plate of the present invention;

fig. 7 is a top view of the present invention;

fig. 8 is an enlarged view of the a-portion structure of fig. 2 according to the present invention.

Description of reference numerals:

1 dust remover body, 2 recesses, 3 bar grooves, 4 first spouts, 5 stabilizer bars, 6 slide boards, 7 springs, 8 fixed plates, 9 second spouts, 10 sliders, 11 first movable rods, 12 second movable rods, 13 connecting grooves, 14 clamping blocks, 15 board bodies of burning plastics, 16 clamping plates, 17 clamping grooves, 18 third spouts, 19 first slide bars, 20 fourth spouts, 21 second slide bars, 22 first supporting blocks, 23 supporting plates, 24 second supporting blocks, 25 first baffles, 26 second baffles, 27 closing doors, 28 handles, 29 air inlet pipes, 30 air outlet pipes, 31 supporting columns, 32 ash discharge valves.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a continuous sintered plate dust remover convenient for replacement and cleaning, which comprises a dust remover body 1, wherein a groove 2 is arranged inside the dust remover body 1, the groove 2 is communicated with the inside of the dust remover body 1, a strip-shaped groove 3 is arranged inside the dust remover body 1, first sliding grooves 4 are arranged at two sides of the strip-shaped groove 3, the first sliding grooves 4 are communicated with the strip-shaped groove 3, a stabilizer bar 5 is arranged inside the strip-shaped groove 3, a sliding plate 6 is connected inside the first sliding grooves 4 in a sliding way, one side of the outer wall of the sliding plate 6 is fixedly connected with one end of the stabilizer bar 5, a spring 7 is arranged between the stabilizer bar 5 and the strip-shaped groove 3, a fixed plate 8 is fixedly connected at one side of the stabilizer bar 5 far away from the spring 7, a second sliding groove 9 is arranged at one side of the outer wall of the fixed plate 8 far away from the stabilizer bar 5, a first movable rod 11 is hinged to one side, away from the second sliding groove 9, of the outer wall of the sliding block 10, a second movable rod 12 is fixedly connected to one end, away from the sliding block 10, of the first movable rod 11, a connecting groove 13 is formed in one side, away from the inner wall of the groove 2, of the groove, the connecting groove 13 is communicated with the strip-shaped groove 3, the second movable rod 12 is hinged to one side, away from the inner wall of the connecting groove 13, of the second movable rod 12, a clamping block 14 is fixedly connected to one end, away from the first movable rod 11, of the second movable rod 12, a burning board body 15 is arranged inside the groove 2, a clamping board 16 is fixedly connected to the top of the burning board body 15, clamping grooves 17 are formed in both sides of the outer wall of the clamping board 16, the clamping block 14 is matched with the clamping grooves 17, a third sliding groove 18 is formed in the top of the dust remover body 1, a second sliding rod 21 is connected to the inside of the fourth sliding chute 20 in a sliding manner, the fourth sliding chute 20 is communicated with the third sliding chute 18, the fourth sliding chute 20 is communicated with the first sliding chute 4, the top of the second sliding rod 21 is fixedly connected with the bottom end of the first sliding rod 19, and the bottom end of the second sliding rod 21 is fixedly connected with the top of the sliding plate 6.

Further, in the above technical solution, the number of the sliding blocks 10 is set to be multiple groups, each group is set to be two, two sliding blocks 10 are symmetrically distributed inside the second sliding groove 9, and the width of the third sliding groove 18 is greater than the width of the fourth sliding groove 20, so that the first sliding rod 19 is more conveniently pulled.

Further, in the above technical scheme, one end of the spring 7 is fixedly connected with the inside of the strip-shaped groove 3, the other end of the spring 7 is fixedly connected with the outer wall of the stabilizer bar 5, and the width of the stabilizer bar 5 is smaller than that of the sliding plate 6, so that the stability of the spring 7 is improved.

Further, in the above technical scheme, the number of the connecting grooves 13 is set to be a plurality of, the connecting grooves 13 are uniformly distributed on one side of the inner wall of the groove 2, and the width of the engaging plate 16 is smaller than that of the burning plate body 15, so that the second movable rod 12 can swing.

The implementation mode is specifically as follows: when the dust remover is used and an internal plastic sintered plate needs to be replaced, a user holds the handle 28 by hand, pulls the handle 28, the handle 28 drives the closing door 27 to move remotely, when the closing door 27 is opened, the first slide bar 19 is pushed, the first slide bar 19 slides in the third slide groove 18, the first slide bar 19 drives the second slide bar 21 to move, the second slide bar 21 slides in the fourth slide groove 20, the width of the third slide groove 18 is larger than that of the fourth slide groove 20, the first slide bar 19 is more conveniently pushed, the second slide bar 21 drives the slide plate 6, the slide plate 6 is added, so that the second slide bar 21 cannot slide out of the fourth slide groove 20, the slide plate 6 slides in the first slide groove 4, the slide plate 6 drives the stabilizer bar 5 to move, the stabilizer bar 5 slides in the strip-shaped groove 3, the spring 7 is stretched, the spring 7 is added, the stabilizer bar 5 can return to the original position, and the fixing plate 8 is driven by the slide plate 5, the fixed plate 8 extrudes the first movable rod 11, and at the same time, the slide block 10 slides in the second slide groove 9, the slide block 10 and the second slide groove 9 are added, so that the fixed plate 8 can drive the first movable rod 11, the first movable rod 11 swings, at the same time, the first movable rod 11 drives the second movable rod 12, the second movable rod 12 swings around the connecting groove 13, the connecting groove 13 is added, so that the second movable rod 12 can swing, and at the same time, the stability of the second movable rod 12 is increased, the second movable rod 12 drives the engaging block 14, so that the engaging block 14 is separated from the engaging groove 17, when the engaging block 14 is separated from the engaging groove 17, the engaging plate 16 is held, the engaging plate 16 is pulled, so that the engaging plate 16 is moved out of the dust collector body 1, when the engaging plate 16 is replaced, the first slide rod 19 is loosened, the tensile force of the spring 7 is released, so that the stabilizer bar 5 returns to the original position, and the, this embodiment has specifically solved when moulding and burning board damages or periodic maintenance, moulds the problem that burning board is difficult to take out from the dust remover inside.

As shown in fig. 1-5: the utility model discloses a dust remover, including recess 2, connecting groove 13, backup pad 23 outer wall one side and 1 inner wall fixed connection of dust remover body, the first supporting shoe 22 of fixedly connected with in one side of connecting groove 13 is kept away from to the 2 inner walls of recess, 1 inner wall fixedly connected with backup pad 23 of dust remover body, 1 inner wall fixedly connected with second supporting shoe 24 of dust remover body is kept away from to the 23 outer walls of backup pad, be equipped with first baffle 25 between recess 2 and the 1 internal connection department of dust remover body, 23 top fixedly connected with second baffle 26 of backup pad, 2 tops of recess articulate has closed door 27, closed door 27 top fixedly connected with handle 28 increases the stability of.

Further, in the above technical scheme, an air inlet pipe 29 penetrates through one side of the outer wall of the dust remover body 1, the air inlet pipe 29 is communicated with the dust remover body 1, an air outlet pipe 30 penetrates through one side, far away from the air inlet pipe 29, of the outer wall of the dust remover body 1, the air outlet pipe 30 is communicated with the inside of the dust remover body 1, a support column 31 is fixedly connected to the top end of the dust remover body 1, an ash outlet valve 32 is fixedly connected to the bottom end of the dust remover body 1, the ash outlet valve 32 is communicated with the inside of the dust remover body 1, and the stability of the plastic sintering plate is improved.

Further, in the above technical scheme, the number of the burning plate bodies 15 is set to be a plurality of, the burning plate bodies 15 are uniformly distributed in the grooves 2, the first supporting block 22 is located between the two burning plate bodies 15, and the second supporting block 24 is located between the two burning plate bodies 15, so that the stability of the burning plate is improved.

Further, in the above technical scheme, the number of the first sliding grooves 4 is set to two, two of the first sliding grooves 4 are symmetrically distributed on two sides of the strip-shaped groove 3, the number of the supporting plates 23 is set to two, and the two supporting plates 23 are symmetrically distributed inside the dust remover body 1, so that the stability of the supporting plates 23 is improved.

The implementation mode is specifically as follows: when the sintering plate is inserted into the dust remover body 1, the sintering plate is inserted between the first supporting block 22 and the first baffle plate 25, or between the two first supporting blocks 22, the adding of the first supporting block 22 limits the movement track of the sintering plate, when the sintering plate reaches the supporting plate 23, the sintering plate is inserted between the two second supporting blocks 24, or the sintering plate is inserted between the second supporting block 24 and the second baffle plate 26, when the sintering plate reaches the proper position, the clamping block 14 is clamped with the clamping groove 17, so that the position of the sintering plate is fixed, when the gas needing to be dedusted enters the dust remover body 1 from the air inlet, the adding of the first baffle plate 25 prevents the gas needing to be dedusted from bypassing the sintering plate when not being dedusted, the gas flows out from the air outlet pipe 30, the adding of the second baffle plate 26, so that the gas needing to be dedusted passes through the sintering plate, the dust flows out of the air outlet pipe 30, when the dust in the dust remover reaches a certain amount, the dust outlet valve 32 is opened, so that the dust flows out of the dust outlet valve 32, the stability of the dust remover is improved due to the addition of the supporting columns 31, and the problem that the stability of the plastic burning plate in the dust remover is poor is solved.

This practical theory of operation:

referring to the attached drawings 1-8 of the specification, when the dust remover is used and the internal sintered plate needs to be replaced, the handle 28 is held by hand, the handle 28 is pulled, the handle 28 drives the closing door 27 to move distantly, when the closing door 27 is opened, the first slide bar 19 is pushed, the first slide bar 19 slides in the third slide groove 18, the first slide bar 19 drives the second slide bar 21, the second slide bar 21 slides in the fourth slide groove 20, the second slide bar 21 drives the slide plate 6, the slide plate 6 slides in the first slide groove 4, the slide plate 6 drives the stabilizer bar 5, the stabilizer bar 5 slides in the strip-shaped groove 3, the tension spring 7, the stabilizer bar 5 drives the fixed plate 8 to move, the fixed plate 8 extrudes the first movable bar 11, the slide block 10 slides in the second slide groove 9, the first movable bar 11 swings, and the first movable bar 11 drives the second movable bar 12, the second movable rod 12 swings around the connecting groove 13, the second movable rod 12 drives the engaging block 14 to separate the engaging block 14 from the engaging groove 17, when the engaging block 14 is separated from the engaging groove 17, the engaging plate 16 is held, the engaging plate 16 is pulled to move the engaging plate 16 out of the dust collector body 1, when the engaging plate 16 is replaced, the first sliding rod 19 is released, the tension force of the spring 7 returns the stabilizer bar 5 to the original position, and the closing door 27 is closed;

referring to the attached drawings 1-5 of the specification, when the sintered plate is inserted into the dust remover body 1, the sintered plate is inserted between the first supporting block 22 and the first baffle 25, or between the two first supporting blocks 22, when the sintered plate reaches the supporting plate 23, the sintered plate is inserted between the two second supporting blocks 24, or the sintered plate is inserted between the second supporting blocks 24 and the second baffle 26, when the sintered plate reaches a proper position, the clamping block 14 is clamped with the clamping groove 17, so that the position of the sintered plate is fixed, when gas needing dust removal enters the dust remover body 1 from the air inlet, the dust valve 32 is opened, and dust flows out from the dust valve 32.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (8)

1. The utility model provides a convenient continuous type that changes clearance moulds board dust remover, includes dust remover body (1), its characterized in that: the dust remover comprises a dust remover body (1), wherein a groove (2) is formed in the dust remover body (1), the groove (2) is communicated with the dust remover body (1), a strip-shaped groove (3) is formed in the dust remover body (1), first sliding grooves (4) are formed in two sides of the strip-shaped groove (3), the first sliding grooves (4) are communicated with the strip-shaped groove (3), a stabilizer bar (5) is arranged in the strip-shaped groove (3), a sliding plate (6) is connected to the inside of the first sliding groove (4) in a sliding manner, one side of the outer wall of the sliding plate (6) is fixedly connected with one end of the stabilizer bar (5), a spring (7) is arranged between the stabilizer bar (5) and the strip-shaped groove (3), a fixed plate (8) is fixedly connected to one side of the stabilizer bar (5) far away from the spring (7), a second sliding groove (9) is formed in one side of the outer wall, the outer wall of the sliding block (10) is hinged to a first movable rod (11) on one side far away from the second sliding groove (9), one end of the first movable rod (11) far away from the sliding block (10) is fixedly connected with a second movable rod (12), one side of the inner wall of the groove (2) is provided with a connecting groove (13), the connecting groove (13) is communicated with the strip-shaped groove (3), the second movable rod (12) is hinged to one side of the inner wall of the connecting groove (13), one end of the second movable rod (12) far away from the first movable rod (11) is fixedly connected with a clamping block (14), a plastic burning plate body (15) is arranged inside the groove (2), a clamping plate (16) is fixedly connected to the top of the plastic burning plate body (15), clamping grooves (17) are formed in two sides of the outer wall of the clamping plate (16), the clamping block (14) is matched with the clamping grooves (17), and a third sliding groove (18) is, third spout (18) inside sliding connection has first slide bar (19), fourth spout (20) have been seted up between third spout (18) and first spout (4), fourth spout (20) inside sliding connection has second slide bar (21), fourth spout (20) and third spout (18) intercommunication, fourth spout (20) and first spout (4) intercommunication, second slide bar (21) top and first slide bar (19) bottom fixed connection, second slide bar (21) bottom and slide (6) top fixed connection.

2. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 1, wherein: the utility model discloses a dust remover, including recess (2) inner wall, connecting groove (13), dust remover body (1), inner wall fixedly connected with backup pad (23), backup pad (23) outer wall one side and dust remover body (1) inner wall fixed connection, dust remover body (1) inner wall one side fixedly connected with second supporting shoe (24) are kept away from to backup pad (23) outer wall, be equipped with first baffle (25) between recess (2) and dust remover body (1) internal connection department, backup pad (23) top fixedly connected with second baffle (26), recess (2) top articulates there is closed door (27), closed door (27) top fixedly connected with handle (28).

3. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 1, wherein: dust remover body (1) outer wall one side is run through and is had intake pipe (29), intake pipe (29) and dust remover body (1) intercommunication, dust remover body (1) outer wall is kept away from intake pipe (29) one side and is run through and has been had outlet duct (30), outlet duct (30) and the inside intercommunication of dust remover body (1), dust remover body (1) top fixedly connected with support column (31), dust remover body (1) bottom fixedly connected with ash valve (32), ash valve (32) and the inside intercommunication of dust remover body (1).

4. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 2, wherein: the number of the plastic burning plate bodies (15) is set to be a plurality of, the plastic burning plate bodies (15) are uniformly distributed in the grooves (2), the first supporting block (22) is located between the two plastic burning plate bodies (15), and the second supporting block (24) is located between the two plastic burning plate bodies (15).

5. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 1, wherein: the quantity of slider (10) sets up to the multiunit, and every group sets up to two slider (10) symmetric distribution is inside second spout (9), third spout (18) width is greater than fourth spout (20) width.

6. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 2, wherein: the quantity of first spout (4) sets up to two, two first spout (4) symmetric distribution is in bar groove (3) both sides, the quantity of backup pad (23) sets up to two backup pad (23) symmetric distribution is inside dust remover body (1).

7. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 1, wherein: spring (7) one end and the inside fixed connection of bar groove (3), spring (7) other end and stabilizer bar (5) outer wall fixed connection, stabilizer bar (5) width is less than slide (6) width.

8. The continuous sintered plate dust remover convenient to replace and clean as claimed in claim 1, wherein: the quantity of spread groove (13) sets up to a plurality ofly, and is a plurality of spread groove (13) evenly distributed is in recess (2) inner wall one side, block board (16) width is less than the board body (15) width of sintering.

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