CN116201354A

CN116201354A - High-rise concrete structure support and construction method thereof

Info

Publication number: CN116201354A
Application number: CN202310413485.6A
Authority: CN
Inventors: 黄上; 张雨欣
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-06-02
Anticipated expiration: 2043-04-18
Also published as: CN116201354B

Abstract

The invention relates to the field of supporting equipment and discloses a high-rise concrete structure support and a construction method thereof, which effectively solve the problems that the prior supporting equipment is not easy to adjust in size and support concrete equipment with different sizes, so that the supporting effect is poor.

Description

High-rise concrete structure support and construction method thereof

Technical Field

The invention belongs to the field of supporting equipment, and particularly relates to a high-rise concrete structure support and a construction method thereof.

Background

According to the patent document with the authority publication number of CN218292784U, the invention is named as a building reinforced concrete supporting structure, and the specification of the patent document is as follows: the reinforced concrete supporting structure for the building is convenient to realize rapid supporting of the template at the bottom of the reinforced concrete supporting structure when the reinforced concrete supporting structure for the building floor is built by using the supporting base, the fixed pipe, the fixed table, the nut seat, the screw rod, the lifting plate, the limiting inserted link, the supporting top plate, the locking cylinder and the square column, ensures stability, replaces wood supporting, utilizes large-scale adjustment between the supporting top plate and the lifting plate and small-scale adjustment combination between the fixed table and the lifting plate, ensures that the whole supporting process of the device is convenient, is beneficial to subsequent convenient recovery, is used for the next building site, and avoids resource waste; the following drawbacks still remain:

when the concrete equipment is supported, the size of the supporting equipment is not easy to adjust due to the different sizes of the different concrete equipment, so that the concrete equipment with different sizes is not easy to support, and the supporting effect is poor.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the high-rise concrete structure support and the construction method thereof, which effectively solve the problems that the prior support equipment is not easy to adjust in size and support the concrete equipment with different sizes, so that the support effect is poor.

In order to achieve the above purpose, the present invention provides the following technical solutions: the high-rise concrete structure support and the construction method thereof comprise two support long plates, wherein a first bottom plate is arranged on one side of each support long plate, which is far away from each other, fixing holes are symmetrically formed in the first bottom plate, and a support assembly is arranged on one side of each support long plate, which is close to each other;

the support subassembly is including the spout that the symmetry was offered in two support longplates and is close to one side each other, and two sliders are all installed to the inside equal symmetry of two spouts, two sliders and spout sliding connection are equipped with the middle part piece between two sliders of homonymy, and the side lever is installed to the both sides symmetry that the middle part piece is close to two support longplates, and movable block is installed to the one end of side lever, and sleeve is all installed to one side that two sliders are close to each other of homonymy, and movable block slidable mounting is in telescopic inside, and first fixed subassembly is installed on telescopic top.

Preferably, the inside threaded connection of middle part piece has first screw rod, and first screw rod on two middle part pieces is kept away from each other and all installs first rotating handle for one end, and a short board is installed to the other end of first screw rod, and two short boards of support all set up in the one side that two middle part pieces are close to each other.

Preferably, the limit rotating groove is formed in one side, close to the middle block, of the support short plate, the limit rotating block is installed at one end of the first screw rod, the limit rotating block is rotationally connected to the inside of the support short plate, the two middle blocks are mutually far away from each other, the second bottom plate is installed, and the fixing holes are symmetrically formed in the second bottom plate.

Preferably, the first fixed component comprises a guide groove arranged at the top end of the sleeve, the guide block is arranged at the top end of the movable block, the guide block is slidably connected in the guide groove, the top end of the guide block is provided with a top block, and racks are symmetrically arranged on two sides of the top block.

Preferably, the side plates are symmetrically arranged on two sides of the sleeve, the top ends of the side plates are symmetrically provided with sliding grooves, sliding blocks are slidably arranged in the sliding grooves, supporting rods are arranged on the top ends of the sliding blocks, mounting plates are arranged on the top ends of the supporting rods, the two mounting plates are symmetrically arranged on two sides of the top block, clamping plates are arranged on one sides, close to each other, of the two mounting plates at equal distances, and the clamping plates are connected with the racks in a clamping mode.

Preferably, one side of the clamping plate, which is close to the rack, is provided with a round head, one side of the sliding block, which is far away from the sleeve, is provided with a first spring, and one end of the first spring is fixedly connected with the inner wall of the sliding groove.

Preferably, one of them the tip rotation of spout is installed the dwang, and the second is changeed the handle is installed to the one end of dwang, and the screw thread groove has been seted up to the symmetry on the dwang, and the opposite direction is seted up to the screw thread of two screw thread grooves, and the dwang passes through two screw thread grooves respectively with two slider threaded connection, installs the second fixed subassembly on the spout.

Preferably, the second fixed subassembly is including installing in the gear at dwang middle part, the storage tank has been seted up on the inside of spout, storage tank is corresponding with the gear, the internally mounted in storage tank has the fixed block, the fixed block is close to one side of gear and sets up flutedly, equiangular mounting has the joint tooth on the recess, joint tooth and gear joint, the spacing groove has been seted up to the inner wall bilateral symmetry in storage tank, the stopper is installed to the bilateral symmetry of fixed block, stopper sliding connection is in the inside in spacing groove, the second spring is installed to one side that the gear was kept away from to the stopper, the one end and the inner wall fixed connection in spacing groove of second spring.

Preferably, the back of accomodating the groove installs the swivel nut, and the inside threaded connection of swivel nut has the second screw rod, and the third is changeed the handle to the one end that the second screw rod is located the support longwall outside, and the other end of second screw rod runs through to accomodating the inside of groove, and the push pedal is installed to the one end that the second screw rod is located accomodating the inslot portion, and the push pedal is hugged closely with the fixed block.

The construction method of the high-rise concrete structure support comprises the following specific operations:

when the support device is used, the device is integrally sleeved on the outer side of the concrete device to be supported, the middle block is movably connected with the sleeve on the sliding block through the side rod, so that the two support long plates move towards the middle block along the side rod, are clung to the two sides of the concrete device, then the second rotating handle is rotated, the rotating rod is in threaded connection with the two sliding blocks, so that the middle blocks on the two sides are driven to move towards the other two sides of the concrete device, the two support long plates and the two support short plates jointly generate a support effect on the outer wall of the concrete device, the support stability is improved, the first bottom plate and the second bottom plate are fixed on the ground through the fixing bolts, meanwhile, the first screw rod is rotated, and the first screw rod is in threaded connection with the middle block, so that the support short plate 410 is pushed to move towards the concrete device to be pre-tightened, and the support effect is improved;

when the side rods move relative to the inside of the sleeve, the mounting plates at the two sides of the sleeve are mutually separated and pulled away, after adjustment is finished, the mounting plates are loosened, so that the mounting plates move back under the action of the elastic force of the first springs, the clamping plates on the mounting plates are inserted into racks at the two sides of the top block, the side rods and the sleeve are fixed, and therefore the supporting effect and the mounting efficiency are improved;

when the rotating rod is rotated, the second screw rod is rotated anticlockwise, so that the second screw rod moves outwards, the fixed block enters into the inside of the gear under the action of the elastic force of the second spring, the clamping teeth are separated from the gear, the rotating rod can be rotated at the moment, after the rotating rod rotates, the second screw rod is rotated clockwise, the second screw rod moves towards the inside of the storage groove, and then the fixed block is pushed to move towards the gear, so that the clamping teeth on the fixed block are clamped with the gear, the rotating rod is fixed, the fixing of two middle blocks is facilitated, and the supporting effect is improved.

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

(1) According to the invention, the middle blocks are movably connected with the sleeves on the sliding blocks through the side rods, so that the two support long plates move towards the middle blocks along the side rods to be clung to two sides of the concrete equipment, the second rotating handle is rotated to enable the rotating rod to rotate, and the rotating rod is in threaded connection with the two sliding blocks, so that the middle blocks on two sides are driven to move towards the other two sides of the concrete equipment, the two support long plates and the two support short plates jointly generate a support effect on the outer wall of the concrete equipment, the support stability is improved, and after the first screw rod is rotated, the support short plates are pre-tensioned, and the support effect is improved;

(2) According to the invention, after the side rod moves in the sleeve to stop, the mounting plate moves back under the action of the elastic force of the first spring, so that the clamping plate on the mounting plate is inserted into the racks at two sides of the top block, and the side rod and the sleeve are fixed, thereby improving the supporting effect and the mounting efficiency and facilitating the supporting of concrete equipment.

After the rotating rod is rotated, the second screw rod is rotated, so that the second screw rod moves towards the inside of the storage groove, and then the fixed block is pushed to move towards the gear, so that the clamping teeth on the fixed block are clamped with the gear, the rotating rod is fixed, the two middle blocks are conveniently fixed, and the supporting effect is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

In the drawings:

FIG. 1 is a schematic view of a high-rise concrete structure support and a construction method thereof according to the present invention;

FIG. 2 is a schematic view of the support assembly of the present invention;

FIG. 3 is a schematic diagram of a middle block structure of the present invention;

FIG. 4 is a schematic view of a first fixing assembly according to the present invention;

FIG. 5 is a schematic view of a turning lever structure according to the present invention;

FIG. 6 is a schematic view of a second fixing assembly according to the present invention;

in the figure: 1. supporting the long plate; 2. a first base plate; 3. a fixing hole; 4. a support assembly; 401. a chute; 402. a slide block; 403. a sleeve; 404. a middle block; 405. a second base plate; 406. a side bar; 407. a movable block; 408. a first screw; 409. a first rotating handle; 410. supporting the short plate; 411. limiting rotating grooves; 412. limiting rotating blocks; 413. a rotating lever; 414. a second rotating handle; 415. a thread groove; 5. a first fixing assembly; 501. a guide block; 502. a top block; 503. a rack; 504. a guide groove; 505. a side plate; 506. a sliding groove; 507. a sliding block; 508. a support rod; 509. a mounting plate; 510. a clamping plate; 511. a first spring; 6. a second fixing assembly; 601. a gear; 602. a storage groove; 603. a fixed block; 604. a groove; 605. the teeth are clamped; 606. a limit groove; 607. a limiting block; 608. a second spring; 609. a screw sleeve; 610. a second screw; 611. a third rotating handle; 612. a push plate.

Examples

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The first embodiment is shown in fig. 1-6, the invention comprises two support long plates 1, wherein a first bottom plate 2 is arranged on one side of the two support long plates 1, which is far away from each other, a fixing hole 3 is symmetrically formed in the first bottom plate 2, and a support assembly 4 is arranged on one side of the two support long plates 1, which is close to each other;

the support subassembly 4 is including the spout 401 of symmetrically seting up in two support longplates 1 one side that is close to each other, two sliders 402 are all installed to the inside symmetry of two spouts 401, two sliders 402 and spout 401 sliding connection, be equipped with middle part piece 404 between two sliders 402 of homonymy, middle part piece 404 is close to two both sides symmetry of two support longplates 1 and installs side lever 406, movable block 407 is installed to one end of side lever 406, sleeve 403 is all installed to one side that is close to each other of two sliders 402 of homonymy, movable block 407 slidable mounting is in sleeve 403's inside, first fixed subassembly 5 is installed on sleeve 403's top, the inside threaded connection of middle part piece 404 has first screw 408, first screw 408 on two middle part pieces 404 keep away from each other and all install first rotating handle 409, the other end of first screw 408 installs a support shortbar 410, two support shortbars 410 all set up in one side that is close to each other of middle part piece 404, limit rotating block 412 is installed to one end of first screw 408, limit rotating piece 412 is installed to one end of limit rotating piece 412, limit rotating piece 412 is installed in two limit rotating piece 412, two end of rotation pieces are installed in two screw holes 415 on two screw holes of rotation 401, two opposite screw holes of rotation 415 are installed to two screw holes of rotation 401, two screw holes are installed to two screw holes of rotation 401 are installed to two opposite screw holes of rotation 401, one end of rotation of two screw holes is installed to the second screw 415 is opposite screw hole 413, one end is installed through two screw hole of rotating piece 401, and one of screw is opposite screw hole is opposite screw-installed.

The first fixed subassembly 5 is including seting up in the guide way 504 on sleeve 403 top, guide block 501 is installed on the top of movable block 407, guide block 501 sliding connection is in the inside of guide way 504, kicking block 502 is installed on the top of guide block 501, rack 503 is installed to the bilateral symmetry of kicking block 502, curb plate 505 is installed to the bilateral symmetry of sleeve 403, sliding groove 506 has been seted up to the top symmetry of curb plate 505, sliding block 507 is installed to the inside slidable mounting of sliding groove 506, bracing piece 508 is installed on the top of sliding block 507, mounting panel 509 is installed on the top of bracing piece 508, both sides of kicking block 502 are located to two mounting panel 509 symmetry, the equal equidistant cardboard 510 of installing in one side that two mounting panels 509 are close to each other, cardboard 510 and rack 503 joint are arranged as the button head in one side that cardboard 510 is close to rack 503, first spring 511 is installed to one side that the sliding block 507 kept away from sleeve 403, the one end of first spring 511 and the inner wall fixed connection of sliding groove 506, the curb plate 406 is stopped in sleeve 403 internal movement, the elasticity effect of first spring 511 is moved back down for cardboard 510 on the mounting panel is inserted into the both sides of kicking block 502, thereby the rack 509, thereby the efficiency is improved, and concrete installation equipment is convenient.

The second fixed subassembly 6 is including installing the gear 601 in the dwang 413 middle part, accomodate groove 602 has been seted up on the inside of spout 401, accomodate groove 602 and gear 601 are corresponding, accomodate the internally mounted of groove 602 has fixed block 603, the recess 604 has been seted up to one side that fixed block 603 is close to gear 601, equiangular mounting has joint tooth 605 on the recess 604, joint tooth 605 and gear 601 joint, the spacing groove 606 has been seted up to the inner wall bilateral symmetry of accomodating groove 602, the stopper 607 is installed to the bilateral symmetry of fixed block 603, stopper 607 sliding connection is in the inside of spacing groove 606, the second spring 608 is installed to one side that the stopper 607 kept away from gear 601, the one end of second spring 608 and the inner wall fixed connection of spacing groove 606, accomodate the back-mounted screw sleeve 609 of groove 602, the inside threaded connection of screw sleeve has second screw 610, the one end that second screw 610 is located the support longwall 1 outside has the third twist grip 611, the other end of second screw 610 runs through to the inside of accomodating groove 602, push pedal 612 is installed to one end that second screw 610 is located the inside of accomodating groove 602, push pedal 612 and fixed block 603 are hugged closely, rotate end 603, make second screw 610 make the inside of rotating block 602 rotate towards the inside of the fixed block 603, thereby make two fixed tooth 601 move towards the inside of the fixed block 601, make the fixed joint effect of moving towards the inside of the fixed block 603, and rotate the fixed block 601.

Working principle: when the support device is used, the device is integrally sleeved on the outer side of the concrete device to be supported, as the middle block 404 is movably connected with the sleeve 403 on the sliding block 402 through the side rods 406, the two support long plates 1 move towards the middle block 404 along the side rods 406 so as to be clung to the two sides of the concrete device, then the second rotating handle 414 is rotated, the rotating rod 413 is in threaded connection with the two sliding blocks 402 so as to drive the middle blocks 404 on the two sides to move towards the other two sides of the concrete device, then the two support long plates 1 and the two support short plates 410 jointly generate a support effect on the outer wall of the concrete device, the support stability is improved, and finally the first bottom plate 2 and the second bottom plate 405 are fixed on the ground through the fixing bolts, and meanwhile, the first screw 408 is in threaded connection with the middle block 404 so as to push the support short plates 410 to move towards the concrete device for pretightening, and the support effect is improved;

when the side rod 406 moves relative to the sleeve 403, the mounting plates 509 on the two sides of the sleeve 403 are separated from each other, after the adjustment is finished, the mounting plates 509 are loosened, the mounting plates 509 move back under the action of the elastic force of the first springs 511, and the clamping plates 510 on the mounting plates 509 are inserted into the racks 503 on the two sides of the top block 502, so that the side rod 406 and the sleeve 403 are fixed, and the supporting effect and the mounting efficiency are improved;

when the rotating rod 413 is rotated, the second screw 610 is rotated anticlockwise, so that the second screw 610 moves outwards, the fixing block 603 enters into the gear 601 under the action of the elastic force of the second spring 608, the clamping teeth 605 are separated from the gear 601, the rotating rod 413 can be rotated at the moment, after the rotating of the rotating rod 413 is finished, the second screw 610 is rotated clockwise, the second screw 610 moves towards the inside of the containing groove 602, the fixing block 603 is pushed to move towards the gear 601, the clamping teeth 605 on the fixing block 603 are clamped with the gear 601, and the rotating rod 413 is fixed, so that the fixing of the two middle blocks 404 is facilitated, and the supporting effect is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-rise concrete structure support, includes two support longplates (1), its characterized in that: the two support long plates (1) are respectively provided with a first bottom plate (2) at one side far away from each other, fixing holes (3) are symmetrically formed in the first bottom plates (2), and support components (4) are respectively arranged at one side where the two support long plates (1) are close to each other;

the support assembly (4) comprises sliding grooves (401) symmetrically arranged on one side, close to each other, of two support long plates (1), two sliding blocks (402) are symmetrically arranged inside the two sliding grooves (401), the two sliding blocks (402) are in sliding connection with the sliding grooves (401), a middle block (404) is arranged between the two sliding blocks (402) on the same side, side rods (406) are symmetrically arranged on two sides, close to the two support long plates (1), of the middle block (404), movable blocks (407) are arranged at one ends of the side rods (406), sleeves (403) are arranged on one sides, close to each other, of the two sliding blocks (402) on the same side, the movable blocks (407) are slidably arranged inside the sleeves (403), and a first fixed assembly (5) is arranged on the top end of each sleeve (403).

2. A high-rise concrete structure support according to claim 1, wherein: the inside threaded connection of middle part piece (404) has first screw rod (408), and first screw rod (408) on two middle part pieces (404) keep away from each other and all install first knob (409) for one end, and support short board (410) are installed to the other end of first screw rod (408), and two support short boards (410) all set up in the one side that two middle part pieces (404) are close to each other.

3. A high-rise concrete structure support according to claim 2, wherein: the limit rotating groove (411) is formed in one side, close to the middle block (404), of the support short plate (410), the limit rotating block (412) is installed at one end of the first screw rod (408), the limit rotating block (412) is rotationally connected to the inside of the support short plate (410), the two middle blocks (404) are mutually far away from each other, the second bottom plate (405) is installed, and the fixing holes (3) are symmetrically formed in the second bottom plate (405).

4. A high-rise concrete structure support according to claim 1, wherein: the first fixing assembly (5) comprises a guide groove (504) formed in the top end of the sleeve (403), the top end of the movable block (407) is provided with a guide block (501), the guide block (501) is connected inside the guide groove (504) in a sliding mode, the top end of the guide block (501) is provided with a top block (502), and racks (503) are symmetrically arranged on two sides of the top block (502).

5. A high-rise concrete structure support according to claim 4, wherein: side board (505) are installed to the bilateral symmetry of sleeve (403), sliding tray (506) have been seted up to the top symmetry of side board (505), slider (507) are installed to the inside slidable mounting of sliding tray (506), bracing piece (508) are installed on the top of slider (507), mounting panel (509) are installed on the top of bracing piece (508), both sides of kicking block (502) are located to two mounting panel (509) symmetry, cardboard (510) are installed to one side equal distance that two mounting panels (509) are close to each other, cardboard (510) and rack (503) joint.

6. A high-rise concrete structure support according to claim 5, wherein: one side of the clamping plate (510) close to the rack (503) is provided with a round head, one side of the sliding block (507) far away from the sleeve (403) is provided with a first spring (511), and one end of the first spring (511) is fixedly connected with the inner wall of the sliding groove (506).

7. A high-rise concrete structure support according to claim 1, wherein: one of them the tip rotation of spout (401) is installed dwang (413), and second change handle (414) are installed to the one end of dwang (413), and screw thread groove (415) have been seted up to symmetry on dwang (413), and the screw thread of two screw thread grooves (415) is seted up the opposite direction, and dwang (413) are through two screw thread grooves (415) respectively with two slider (402) threaded connection, install second fixed subassembly (6) on spout (401).

8. A high-rise concrete structure support according to claim 7, wherein: the second fixed subassembly (6) is including installing in gear (601) at dwang (413) middle part, accomodate groove (602) have been seted up on the inside of spout (401), accomodate groove (602) and gear (601) are corresponding, accomodate internally mounted in groove (602) has fixed block (603), recess (604) have been seted up to one side that fixed block (603) is close to gear (601), joint tooth (605) are installed to equiangle on recess (604), joint tooth (605) and gear (601) joint, limit groove (606) have been seted up to the inner wall bilateral symmetry of accomodating groove (602), stopper (607) sliding connection is in the inside of limit groove (606), one side that gear (601) was kept away from to stopper (607) is installed second spring (608), one end and the inner wall fixed connection of limit groove (606) of second spring (608).

9. A high-rise concrete structure support according to claim 8, wherein: the back of accomodating groove (602) is installed swivel nut (609), and the inside threaded connection of swivel nut (609) has second screw rod (610), and third change handle (611) is installed to the one end that second screw rod (610) are located the support longwall (1) outside, and the other end of second screw rod (610) runs through to the inside of accomodating groove (602), and push pedal (612) are installed to the one end that second screw rod (610) are located the inside of accomodating groove (602), and push pedal (612) are hugged closely with fixed block (603).

10. A construction method of a high-rise concrete structure support is characterized by comprising the following steps: the concrete structure support comprises the high-rise concrete structure support, and the concrete operation is as follows:

when the support device is used, the device is integrally sleeved on the outer side of the concrete device to be supported, as the middle block (404) is movably connected with the sleeve (403) on the sliding block (402) through the side rods (406), the two support long plates (1) are enabled to move towards the middle block (404) along the side rods (406), and are tightly attached to two sides of the concrete device, then the second rotating handle (414) is rotated, the rotating rod (413) is enabled to rotate, the rotating rod (413) is in threaded connection with the two sliding blocks (402), the middle blocks (404) on two sides are driven to move towards the other two sides of the concrete device, then the two support long plates (1) and the two support short plates (410) jointly generate a support effect on the outer wall of the concrete device, the support stability is improved, and finally the first bottom plate (2) and the second bottom plate (405) are fixed on the ground through the fixing bolts, and the first screw (408) is simultaneously rotated, so that the support short plates (410) are pushed to move towards the other two sides of the concrete device to be tightly pre-fastened due to the fact that the first screw (408) is in threaded connection with the middle block (404);

when the side rods (406) move relative to the inside of the sleeve (403), the mounting plates (509) at the two sides of the sleeve (403) are separated from each other, after adjustment is finished, the mounting plates (509) are loosened, the mounting plates (509) move back under the action of the elastic force of the first springs (511), and the clamping plates (510) on the mounting plates (509) are inserted into the racks (503) at the two sides of the top block (502), so that the side rods (406) and the sleeve (403) are fixed, and the supporting effect and the mounting efficiency are improved;

when rotating dwang (413), anticlockwise rotation second screw rod (610) to make second screw rod (610) outwards remove, thereby make fixed block (603) enter into inside gear (601) under the elasticity effect of second spring (608), make joint tooth (605) break away from the joint with gear (601), can rotate dwang (413) this moment, after dwang (413) rotation is finished, clockwise rotation second screw rod (610) makes second screw rod (610) remove towards accomodating inslot (602), promote fixed block (603) and remove towards gear (601) then, make joint tooth (605) and gear (601) joint on fixed block (603), thereby fix dwang (413), thereby make things convenient for the fixed of two middle part pieces (404), improve the supporting effect.