CN207228671U - A kind of building scaffold support device - Google Patents

Abstract

The utility model discloses a kind of building scaffold support device, it is related to building bearing device, for solving the problems, such as bracket easily skidding is produced with scaffold during support, it includes support tube, screw, wing nut, bracket, bracket includes the bottom plate being fixed on screw, the hinged installing plate with bottom plate, the contiguous block being fixed on installing plate, the first claw and the second claw being slidably connected to by contiguous block on installing plate, formed with clamp port between first claw and the second claw, and the adjusting mechanism for adjusting clamp port size is provided with installing plate, the utility model has the following advantages and effect：This programme utilizes new mechanical structure, the first movable claw and the second claw can adjust the size of clamp port according to steelframe size, bracket is set to clamp various sizes of steelframe, steelframe is set to be not likely to produce slip after being connected with bracket, support is set more to stablize, so as to achieve the purpose that to reduce security incident possibility occurrence.

Description

A kind of building scaffold support device

Technical field

Building bearing device is the utility model is related to, more particularly to a kind of building scaffold support device.

Background technology

Jacking refers to the support for steel pipe and scaffold, plays and adjusts scaffold and pipe support height, balanced support weight With the support device for bearing the effect of concrete structure weight, it using more, but is also used for room sometimes in plane work progress Build the support of ceiling in room.

At present, Authorization Notice No. CN201241471Y, authorized announcement date are that the Chinese utility model of 2009.5.20 discloses A kind of load bearing formwork support top hold of cast-in-place reinforced concrete structure, including jacking, screw rod and nut, screw rod connect with jacking welding Connect, nut is cased with screw rod.

Load bearing formwork support top hold of cast-in-place reinforced concrete structure as described above, finds during use, due to Jacking（Claim bracket in the present embodiment）The size of opening is fixed, it is during scaffold is supported, when running into foot hand When the steelframe size of frame and the size of jacking opening mismatch, the process that is supported using this support jacking to scaffold In, slip is easily produced between jacking and steel pipe, scaffold is produced inclination, therefore be easy to cause the generation of security incident.

Utility model content

The purpose of this utility model is to provide a kind of building scaffold support device, can be according to the size of steelframe to bracket Size be adjusted, bracket is can be used in the support of different dimensions steelframes, so that reaching reduces security incident The purpose of possibility.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of building scaffold branch Support arrangement, including support tube, be arranged in the support tube screw, be threadedly connected on the screw and with the support tube Inconsistent wing nut, the bracket being fixed on the one end of the screw away from the support tube, the bracket include fixing In the bottom plate on the screw, the side installing plate hinged with the bottom plate, it is fixed on the installing plate and length direction is put down Contiguous block of the row in the pivot center of the installing plate, the first support for being slidably connected to by the contiguous block on the installing plate Pawl and the second claw, formed with the clamp port for clamping steelframe between first claw and second claw, and in institute State the adjusting mechanism being provided with installing plate for adjusting the clamp port size.

By using such scheme, the steelframe of the first claw and the second claw for clamping scaffold, and use the company of slip The size of the clamp port formed between the two can conveniently be adjusted by connecing the first claw of mode and the second claw, make clamp port It is sized to match with the size of steelframe, makes support jacking after steelframe is supported, bracket is not easy to produce between steelframe Slide, therefore scaffold is not allowed to be also easy to produce inclination during use, so that reaching reduces security incident possibility occurrence Purpose.

The utility model is further arranged to：The adjusting mechanism includes the first adjusting part, the first adjusting group Part includes being fixed on the installing plate and is located at first fixed block of first claw away from the second claw side, opens The first threaded hole on first fixed block, the first adjusting screw rod being threadedly connected in first threaded hole, institute The one end for stating the first adjusting screw rod through first threaded hole is rotationally connected with first claw.

By using such scheme, when needing to adjust the diminution of clamp port, the first adjusting screw rod is rotated to side, makes the One adjusting screw rod drives the first claw court towards the lateral movement close to the second claw during the first adjusting screw rod moves To the lateral movement close to the second claw, reduce the clamp port between the first claw and the second claw；Clamped when needing to adjust When mouth becomes larger, the first adjusting screw rod is rotated backward, the first adjusting screw rod is directed away from a lateral movement of the second claw, first Adjusting screw rod drives the first claw to be directed away from a lateral movement of the second claw during moving, and makes the first claw and the second support Clamp port between pawl becomes larger, so as to achieve the purpose that to adjust clamp port size.

The utility model is further arranged to：It is provided with first claw for limiting first adjusting screw rod The first anti-drop assembly being disconnected with first claw, first anti-drop assembly include being fixed on the first claw back of the body To first lantern ring on one side end face of the second claw, the lantern ring is opened on one side end face of the first claw First mounting groove, be opened in first lantern ring back on the end face of the first mounting groove side and with first mounting groove First pole perforating hole of connection, the first anti-drop block for being fixed on first adjusting screw rod and being located in first mounting groove, The diameter of first mounting groove is more than the diameter of first pole perforating hole, and the diameter of first anti-drop block is equal to described the The diameter of one mounting groove.

By using such scheme, since the diameter of the first mounting groove is more than the diameter of the first pole perforating hole, and the first anticreep Block is located in the first mounting groove, therefore the side wall of first lantern ring can limit the first anti-drop block and deviate from out of first mounting groove, and And since the first anti-drop block and the first adjusting screw rod are fixedly connected, the lantern ring can play the first adjusting screw rod of limitation from first The purpose departed from pole perforating hole, so that the first adjusting screw rod is not easy to be disconnected with the first claw.

The utility model is further arranged to：The adjusting mechanism further includes the second adjusting part, and described second is adjusted Component include be fixed on the installing plate and positioned at second fixed block of second claw away from the first claw side, The second threaded hole being opened on second fixed block, the second adjusting screw rod being threadedly connected in second threaded hole, One end of second adjusting screw rod through second threaded hole is rotationally connected with second fixed block.

By using such scheme, by the second claw be also configured as it is adjustable after, can be adjusted according to the size of steelframe The relative position between the first claw and the second claw is saved, makes steelframe its center of gravity and length of screw after being held in clamp port Direction falls on same vertical curve so that the support of building scaffold support device is more stablized, and scaffold is not allowed more Inclination is also easy to produce, so as to achieve the purpose that further to reduce security incident possibility occurrence.

The utility model is further arranged to：It is provided with second claw for limiting second adjusting screw rod The second anti-drop assembly being disconnected with second claw, second anti-drop assembly include being fixed on the second claw back of the body To second lantern ring on one side end face of the first claw, the lantern ring is opened on one side end face of the second claw Second mounting groove, be opened in second lantern ring back on the end face of the second mounting groove side and with second mounting groove Second pole perforating hole of connection, the second anti-drop block for being fixed on second adjusting screw rod and being located in second mounting groove, The diameter of second mounting groove is more than the diameter of second pole perforating hole, and the diameter of second anti-drop block is equal to described the The diameter of two mounting grooves.

By using such scheme, since the diameter of the second mounting groove is more than the diameter of the second pole perforating hole, and the second anticreep Block is located in the second mounting groove, therefore the side wall of second lantern ring can limit the second anti-drop block and deviate from out of second mounting groove, and And since the second anti-drop block and the second adjusting screw rod are fixedly connected, the second adjusting screw rod is not easy to take off out of second pole perforating hole From so that the second adjusting screw rod is not easy to be disconnected with the second claw.

The utility model is further arranged to：It is provided with the bottom plate for adjusting the installing plate and the bottom plate Between angle angle compensation mechanism, the angle compensation mechanism includes being opened in described be opened on the bottom plate and away from institute State the compensation threaded hole of the rotation axis side of installing plate, the compensation bolt being threadedly connected in the compensation threaded hole, the benefit The one end for repaying bolt through the compensation threaded hole is rotationally connected with the installing plate.

By using such scheme, building scaffold support device also can sometimes in addition to the installation for scaffold For, to not solidifying the support of concrete, and building that certain structures can be inclined in the construction process in architectural process, After angle compensation mechanism is set, rotation compensation spiral shell can be passed through when needing to be supported inclined concrete building structures Bolt, makes compensation bolt be directed away from a lateral movement of wing nut, can be by installing plate direction during bolt movement is compensated Side away from bottom plate jacks up, and can be used to prop up after the angular adjustment of installing plate is adapted to the angle of inclination with concrete Building structure is supportted, so that not solidified building structure is not allowed to be also easy to produce slump.

The utility model is further arranged to：The bottom plate is back to being fixed with reinforcement on the end face of the installing plate side Block, the compensation threaded hole are located at the center of the reinforcement block.

By using such scheme, reinforcement block can increase the thickness that bottom plate offers compensation threaded hole position, and by In compensation threaded hole be opened on reinforcement block, therefore can increase compensation threaded hole depth, make compensation bolt with sole shape Into after connection, the threaded connection length compensated between bolt and bottom plate is longer, makes the bonding strength between compensation bolt and bottom plate Higher, so that the connection between compensation bolt and bottom plate is not easy the situation for stripped thread occur.

The utility model is further arranged to：The wing nut includes nut main body and is fixed on the nut main body Side wall on turning handle, the turning handle offers connection screw thread hole on the end face away from the nut main body side, described Connection screw thread hole internal thread is connected with barre.

By using such scheme, when scaffold generation inclination, it is necessary to when scaffold support is got up, due to scaffold weight Measure larger, and the length of turning handle is smaller, therefore operating personnel can be relatively elaborate when rotating turning handle, there is provided barre Afterwards, the arm of force of turning handle can be increased when needing scaffold righting, so as to reach labour-saving purpose；And by scaffold After adjusting suitable height, barre can be removed from turning handle, reduce building scaffold supporting device body so as to reach Long-pending purpose.

In conclusion the utility model has the advantages that：

1. the first movable claw and the second claw can adjust the size of clamp port according to the size of steelframe, make support Frame can clamp the steelframe of different dimensions, steelframe is not likely to produce slip after being connected with bracket, and can make the weight of steelframe The length direction of the heart and screw is located on the same line, and the support of building scaffold support device is more stablized so that foot Hand cradle is not allowed to be also easy to produce inclination, so as to achieve the purpose that to reduce security incident possibility occurrence；

2. angle compensation mechanism can be when needing to be supported inclined building structure, the convenient angle for adjusting installing plate The angle for spending the building structure with needing to support matches, so that support can preferably support building structure；

3. the barre on turning handle can increase the arm of force of turning handle, make operating personnel during wing nut is twisted Can be more laborsaving.

Brief description of the drawings

Fig. 1 is the overall structure figure of the present embodiment, for embodying the overall structure of the present embodiment；

Fig. 2 is the partial enlarged view at A in Fig. 1, for embodying the structure of wing nut；

Fig. 3 is the explosive view of the present embodiment bracket, for embodying the overall structure of bracket；

Fig. 4 is the cross section view of the present embodiment installing plate, contiguous block, adjusting mechanism, for embodying the structure of adjusting mechanism；

Fig. 5 is the partial enlarged view at B in Fig. 4, for embodying the structure of the first anti-drop assembly；

Fig. 6 is the partial enlarged view at C in Fig. 4, for embodying the structure of the second anti-drop assembly.

In figure：1st, support tube；11st, support plate；2nd, screw；3rd, wing nut；31st, nut main body；32nd, turning handle；321、 Connection screw thread hole；322nd, barre；4th, bracket；41st, bottom plate；42nd, installing plate；43rd, contiguous block；431st, sliding slot；44th, the first claw； 441st, the first sliding block；45th, the second claw；451st, the second sliding block；5th, reinforcement block；6th, angle compensation mechanism；61st, threaded hole is compensated； 62nd, bolt is compensated；7th, clamp port；8th, adjusting mechanism；81st, the first adjusting part；811st, the first fixed block；812nd, the first screw thread Hole；813rd, the first adjusting screw rod；82nd, the second adjusting part；821st, the second fixed block；822nd, the second threaded hole；823rd, second adjust Save screw rod；9th, the first anti-drop assembly；91st, first lantern ring；92nd, the first mounting groove；93rd, the first pole perforating hole；94th, the first anti-drop block； 10th, the second anti-drop assembly；101st, second lantern ring；102nd, the second mounting groove；103rd, the second pole perforating hole；104th, the second anti-drop block.

Embodiment

The utility model is described in further detail below in conjunction with attached drawing.

As depicted in figs. 1 and 2, a kind of building scaffold support device, including support tube 1, screw 2, wing nut 3, support Frame 4, support tube 1 are in hollow tubular, and the support plate 11 for increasing stability is fixed with one end of support tube 1；Screw 2 is worn In the one end of support tube 1 away from support plate 11；Wing nut 3 is threadedly connected on screw 2, and wing nut 3 is close to branch The end face of 1 side of stay tube is contradicted on support tube 1, and wing nut 3 includes nut main body 31 and two turning handles 32, two rotations It is symmetrically fixed on 32 on the side wall of nut main body 31, and is opened on two end faces of the turning handle 32 away from 31 one end of nut main body Equipped with connection screw thread hole 321, barre 322 is connected with 321 internal thread of connection screw thread hole, using the barre of thread connecting mode 322 can remove after use from turning handle 32.

As shown in figures 1 and 3, bracket 4 includes bottom plate 41,42, two contiguous blocks 43 of installing plate, the first claw 44, second Claw 45, bottom plate 41 are in square plate shape, are fixed on the one end of screw 2 away from support tube 1, screw 2 is along its length direction Heart line is overlapped with the center of bottom plate 41, on end face of the bottom plate 41 back to 42 side of installing plate and away from installing plate 42 rotation axis The side of line is further fixed on cylindrical reinforcement block 5；Installing plate 42 is also in square plate shape, side and the bottom plate 41 of installing plate 42 Side is hinged.

Two contiguous blocks 43 are in strip, are fixed on installing plate 42 back on the end face of 41 side of bottom plate, and contiguous block 43 Length direction parallel to installing plate 42 pivot center, on two contiguous blocks 43 end face relative to each other and close to installing plate 42 side offers the sliding slot 431 that the length direction of length direction along contiguous block 43 extends.

The section of first claw 44 and the second claw 45 is L-shaped, is fixed with the end face at 44 both ends of the first claw First sliding block 441, two the first sliding blocks 441 are respectively embedded into two sliding slots 431, so that the first claw 44 and 42 shape of installing plate Into being slidably connected；The second sliding block 451 is fixed with the end face at 45 both ends of the second claw, two the second sliding blocks 451 are respectively embedded into In two sliding slots 431, it is slidably connected so that being formed between the second claw 45 and installing plate 42, in the first claw 44 and the second support After pawl 45 is installed on installing plate 42, formed with the clamp port 7 for clamping steelframe between the first claw 44 and the second claw 45, And the adjusting mechanism 8 for adjusting 7 size of clamp port is provided with installing plate 42.

As shown in figure 4, adjusting mechanism 8 includes the first adjusting part 81 and the second adjusting part 82, the first adjusting part 81 Including the first fixed block 811, the first threaded hole 812, the first adjusting screw rod 813, the first fixed block 811 is fixed on installing plate 42 And it is located at the first claw 44 back to the side of the second claw 45；First threaded hole 812 is opened on the first fixed block 811, and the The direction of motion of the depth direction of one threaded hole 812 parallel to the first claw 44；First adjusting screw rod 813 is threadedly connected to first In threaded hole 812, and one end of the first adjusting screw rod 813 through the first threaded hole 812 is rotationally connected with the first claw 44.

As shown in figure 5, it is provided with what is be disconnected for limiting the first adjusting screw rod 813 with itself on the first claw 44 First anti-drop assembly 9, the first anti-drop assembly 9 include first lantern ring 91, the first mounting groove 92, the first pole perforating hole 93, the first anticreep Block 94, first lantern ring 91 is in the form of annular discs, is fixed on the first claw 44 on the end face of 811 side of the first fixed block；First peace Tankage 92 is opened on first lantern ring 91 and the inconsistent end face of the first claw 44；First pole perforating hole 93 is opened in first lantern ring 91 Connected on back to the end face of 92 side of the first mounting groove and with the first mounting groove 92, the diameter of the first pole perforating hole 93 is less than the first peace The diameter of tankage 92, the first adjusting screw rod 813 are pacified close to one end of the first claw 44 through after the first pole perforating hole 93 embedded first In tankage 92；Anti-drop block is in disc-shaped, is fixed on one end that the first adjusting screw rod 813 is embedded in the first mounting groove 92, so that The first adjusting screw rod 813 is set to be not easy to be disconnected with the first claw 44 during rotation.

As shown in figure 4, the second adjusting part 82 includes the second fixed block 821, the second threaded hole 822, the second adjusting screw rod 823, the second fixed block 821 is fixed on installing plate 42 and is located at the second claw 45 back to the side of the first claw 44；Second spiral shell Pit 822 be opened on the second fixed block 821 and the depth direction of the second threaded hole 822 parallel to the second claw 45 movement side To；Second adjusting screw rod 823 is threadedly connected in the second threaded hole 822, and adjusting screw rod passes through one end of the second threaded hole 822 It is rotationally connected with the second claw 45.

As shown in fig. 6, it is provided with what is be disconnected for limiting the second adjusting screw rod 823 with itself on the second claw 45 Second anti-drop assembly 10, the second anti-drop assembly 10 include second lantern ring 101, the second mounting groove 102, the second pole perforating hole 103, second Anti-drop block 104, second lantern ring 101 is also in the form of annular discs, is fixed on the second claw 45 on 821 1 side end face of the second fixed block； Second mounting groove 102 is opened on second lantern ring 101 and the inconsistent end face of the second claw 45；Second pole perforating hole 103 is opened in Second lantern ring 101 is connected back on the end face of 45 side of the second claw and with the second mounting groove 102, the second pole perforating hole 103 it is straight Footpath is less than the diameter of the second mounting groove 102, and the second adjusting screw rod 823 passes through embedded second mounting groove 102 after the second pole perforating hole 103 It is interior；Second anti-drop block 104 is in disc-shaped, is fixed on one end that the second adjusting screw rod 823 is embedded in the second mounting groove 102.

As shown in figures 1 and 3, the angle for adjusting angle between installing plate 42 and bottom plate 41 is provided with bottom plate 41 Compensation mechanism 6, angle compensation mechanism 6 include compensation threaded hole 61, compensation bolt 62, and compensation threaded hole 61 is opened in reinforcement block 5 On, and reinforcement block 5 and bottom plate 41 are run through；Compensation bolt 62 is threadedly connected in compensation threaded hole 61, and is compensated bolt 62 and worn One end of overcompensation threaded hole 61 is contradicted on installing plate 42.

Specific implementation process：When needing to be supported scaffold, rotate the first adjusting screw rod 813 and second and adjust spiral shell Bar 823, makes the first adjusting screw rod 813 and the second adjusting screw rod 823 towards the lateral movement being located remotely from each other, in the first adjusting screw rod 813 and second adjusting screw rod 823 move during drive the first claw 44 and the second claw 45 towards the side being located remotely from each other Movement, the clamp port 7 for making to be formed between the first claw 44 and the second claw 45 increase；By the first claw 44 and the second claw 45 After being held on the steelframe of scaffold, the first adjusting screw rod 813 and the second adjusting screw rod 823 are rotated backward, makes the first adjusting spiral shell 813 and second adjusting screw rod 823 of bar is towards a lateral movement close to each other, in the first adjusting screw rod 813 and the second adjusting screw rod 823 it is close to each other during drive the first claw 44 and the second claw 45 it is close to each other, untill steelframe is clamped；With Turning handle 32 is rotated afterwards, makes turning handle 32 drive wing nut 3 to rotate, since the first claw 44 and the second claw 45 are clamped in steel On frame, the rotation of screw 2 can be limited, therefore can drive during wing nut 3 rotates screw 2 towards detaching support One lateral movement of pipe 1；Drive bottom plate 41 to be directed away from a lateral movement of support tube 1 during screw 2 moves, by steelframe to Upper jack-up, plays the role of scaffold support, and due to there is the clamping action of the first claw 44 and the second claw 45, makes branch Support arrangement is not allowed to be also easy to produce slip after scaffold is supported between bracket 4 and steelframe, makes scaffold not allow to be also easy to produce inclination, So as to achieve the purpose that to reduce security incident possibility occurrence.

This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but As long as all protected in the right of the utility model be subject to Patent Law.

Claims (8)

1. a kind of building scaffold support device, including support tube (1), the screw (2), the spiral shell that are arranged in the support tube (1) Line is connected to the wing nut (3) inconsistent on the screw (2) and with the support tube (1), is fixed on the screw (2) far From the bracket (4) on one end of the support tube (1), it is characterised in that：The bracket (4) includes being fixed on the screw (2) On bottom plate (41), side and the hinged installing plate (42) of the bottom plate (41), be fixed on the installing plate (42) and length It is oriented parallel to the contiguous block (43) of the pivot center of the installing plate (42), institute is slidably connected to by the contiguous block (43) State the first claw (44) and the second claw (45) on installing plate (42), first claw (44) and second claw (45) Between formed with the clamp port (7) for clamping steelframe, and be provided with the installing plate (42) for adjusting the clamping The adjusting mechanism (8) of mouth (7) size.

A kind of 2. building scaffold support device according to claim 1, it is characterised in that：Adjusting mechanism (8) bag Include the first adjusting part (81), first adjusting part (81) includes being fixed on the installing plate (42) and positioned at described the First fixed block (811) of one claw (44) away from the second claw (45) side, be opened in first fixed block (811) On the first threaded hole (812), the first adjusting screw rod (813) for being threadedly connected in first threaded hole (812), described One end of one adjusting screw rod (813) through first threaded hole (812) is rotationally connected with first claw (44).

A kind of 3. building scaffold support device according to claim 2, it is characterised in that：On first claw (44) It is provided with the first anti-drop assembly being disconnected for limiting first adjusting screw rod (813) and first claw (44) (9), first anti-drop assembly (9) includes being fixed on first claw (44) back to (45) one side end face of the second claw On first lantern ring (91), be opened in first mounting groove of the lantern ring on (44) one side end face of the first claw (92), be opened in first lantern ring (91) back on the end face of the first mounting groove (92) side and with the described first installation The first pole perforating hole (93) of groove (92) connection, be fixed on first adjusting screw rod (813) and be located at first mounting groove (92) the first anti-drop block (94) in, the diameter of first mounting groove (92) are more than the diameter of first pole perforating hole (93), And the diameter of first anti-drop block (94) is equal to the diameter of first mounting groove (92).

A kind of 4. building scaffold support device according to claim 1, it is characterised in that：The adjusting mechanism (8) is also Including the second adjusting part (82), second adjusting part (82) includes being fixed on the installing plate (42) and positioned at described Second fixed block (821) of second claw (45) away from the first claw (44) side, be opened in second fixed block (821) the second threaded hole (822) on, the second adjusting screw rod (823) being threadedly connected in second threaded hole (822), One end of second adjusting screw rod (823) through second threaded hole (822) is rotationally connected with second fixed block (821) on.

A kind of 5. building scaffold support device according to claim 4, it is characterised in that：On second claw (45) It is provided with the second anti-drop assembly being disconnected for limiting second adjusting screw rod (823) and second claw (45) (10), second anti-drop assembly (10) includes being fixed on second claw (45) back to (44) one side of the first claw Second lantern ring (101) on face, be opened in second mounting groove of the lantern ring on (45) one side end face of the second claw (102), second lantern ring (101) is opened in back on the end face of the second mounting groove (102) side and with described second The second pole perforating hole (103) of mounting groove (102) connection, be fixed on second adjusting screw rod (823) and positioned at described second The second anti-drop block (104) in mounting groove (102), the diameter of second mounting groove (102) are more than second pole perforating hole (103) diameter, and the diameter of second anti-drop block (104) is equal to the diameter of second mounting groove (102).

A kind of 6. building scaffold support device according to claim 1, it is characterised in that：Set on the bottom plate (41) It is useful for adjusting the angle compensation mechanism (6) of angle between the installing plate (42) and the bottom plate (41), the angle compensation Mechanism (6) includes being opened in the benefit for being opened on the bottom plate (41) and the rotation axis side away from the installing plate (42) Threaded hole (61), the compensation bolt (62) being threadedly connected in the compensation threaded hole (61) are repaid, the compensation bolt (62) is worn The one end for crossing the compensation threaded hole (61) is contradicted on the installing plate (42).

A kind of 7. building scaffold support device according to claim 6, it is characterised in that：The bottom plate (41) is back to institute State and reinforcement block (5) is fixed with the end face of installing plate (42) side, the compensation threaded hole (61) is located at the reinforcement block (5) Center.

A kind of 8. building scaffold support device according to claim 1, it is characterised in that：Wing nut (3) bag The turning handle (32) for including nut main body (31) and being fixed on the side wall of the nut main body (31), the turning handle (32) are remote Connection screw thread hole (321) is offered on the end face of nut main body (31) side, connection screw thread hole (321) internal thread connects It is connected to barre (322).