CN111550028B

CN111550028B - Auxiliary frame body with high safety performance for mounting energy-saving building light-passing board

Info

Publication number: CN111550028B
Application number: CN202010299683.0A
Authority: CN
Inventors: 刘嘉玮
Original assignee: Mengcheng Shisu Information Technology Co ltd
Current assignee: Mengxian SHISU Information Technology Co.,Ltd.
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-05-07
Anticipated expiration: 2040-04-16
Also published as: CN111550028A; CN112709420A

Abstract

The invention provides an auxiliary frame body with high safety performance for mounting a light-passing plate of an energy-saving building, relates to the field of mounting frames, and solves the problems that when the auxiliary frame body is used in winter, accumulated snow falling into a hanging frame cannot be removed in time after melting, and operators can slip easily after freezing; the stability of the frame body part can not be enhanced through structural improvement in the process of lifting on the ground and using, and the problem of automatic locking after the frame body is lifted can not be realized. The auxiliary frame body with high safety performance for installing the energy-saving building light-transmitting plate comprises a base; four corner positions of the top end face of the base are fixedly connected with a sliding telescopic rod through bolts. Each group of sliding rods is sleeved with an elastic piece, and each clamping seat is welded with a tooth row; the tooth row is connected with the latch in a clamped mode, the tooth row and the latch are right-angle teeth, the tooth row and the latch jointly form a clamped locking structure, the tooth row and the latch are connected in a clamped mode under the action of elastic stretching force of the elastic piece, and therefore automatic locking of the frame body can be prevented.

Description

Auxiliary frame body with high safety performance for mounting energy-saving building light-passing board

Technical Field

The invention belongs to the technical field of mounting racks, and particularly relates to an auxiliary rack body with high safety performance for mounting energy-saving building light-transmitting plates.

Background

The light-transmitting plate is not a light-transmitting stone, which is a decorative material made of two different materials, and the light-transmitting stone please directly look up the relative terms of the light-transmitting stone. The light-transmitting plate is used for reinforcing other materials such as marble, various natural stones and the like at the beginning of birth. Due to good extensibility, plasticity and fashion, the composite board is gradually developed into a special composite board material with a semitransparent structure, and light-transmitting plates are mostly arranged on the outer side of the current large energy-saving building.

As in application No.: CN201410612111.8, the invention discloses a hanging basket, relates to the technical field of high-altitude operation equipment, and solves the problems that a weight piece placed in the hanging basket is lifted to an installation position through the hanging basket, and a worker can take down the hanging basket after penetrating the weight piece into a pin, so that the labor intensity and the working difficulty of the worker are reduced, and the potential safety hazard of falling of the weight piece is eliminated. The main technical scheme of the invention is as follows: the method comprises the following steps: the basket is used for containing the weight sheets, the depth of the basket is smaller than the width of the weight sheets, and the pin holes of the weight sheets are exposed outside the basket; and the hook is arranged on one side surface of the basket matched with the length of the heavy hammer sheet and is used for hooking with a lifting device. The invention is mainly used in the technical field of heavy hammer slice high-altitude operation.

The auxiliary basket similar to the above application has the following disadvantages:

one is that the currently used hanging frame has poor anti-skid and drainage effects, when the hanging frame is used in winter, the accumulated snow falling into the hanging frame can not be removed in time after melting, and operators can slip easily after freezing; moreover, the functionality is weak, the existing hanging frame cannot simultaneously meet two using modes of suspension and ground lifting support, the stability of the frame body part cannot be enhanced through structural improvement in the process of lifting on the ground, and the automatic locking of the lifted frame body cannot be realized; finally, the connection wire rope cannot be adjusted quickly when loosened after long-term use.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and an auxiliary frame body with high safety performance for installing the energy-saving building light-transmitting plate is provided, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides an auxiliary frame body with high safety performance for mounting a light-transmitting plate of an energy-saving building, aiming at solving the problems that the existing hanging frame has poor anti-skidding and drainage effects, accumulated snow falling into the hanging frame cannot be removed in time after melting when used in winter, and operators can slip easily after freezing; moreover, the functionality is weak, the existing hanging frame cannot simultaneously meet two using modes of suspension and ground lifting support, the stability of the frame body part cannot be enhanced through structural improvement in the process of lifting on the ground, and the automatic locking of the lifted frame body cannot be realized; finally, the problem that the connection steel wire rope cannot be adjusted quickly when the connection steel wire rope is loosened after long-time use is solved.

The invention relates to an auxiliary frame body with high safety performance for mounting energy-saving building light-transmitting plates, which is realized by the following specific technical means:

the auxiliary frame body with high safety performance for installing the energy-saving building light-transmitting plate comprises a base; four corner positions of the top end face of the base are fixedly connected with a sliding telescopic rod through bolts, and the center position of the top end face of the base is fixedly connected with a hydraulic telescopic rod through bolts; the top end surfaces of the sliding telescopic rod and the hydraulic telescopic rod are fixedly connected with the bottom end surface of the frame body, and four corner positions at the top of the frame body are provided with a rope adjusting structure; the outer side of the base is fixedly connected with a protective structure through a bolt; the protective structure also comprises a protective seat, sliding rods, clamping seats, gear rows and elastic pieces, wherein the protective seat is welded on the two protective plates on the front side together, two groups of four sliding rods are symmetrically and slidably connected onto the protective seat, and each group of sliding rods is welded with one clamping seat; each group of sliding rods is sleeved with an elastic piece, and each clamping seat is welded with a tooth row; the gear row and the clamping teeth are mutually clamped, the gear row and the clamping teeth are right-angle teeth, and the gear row and the clamping teeth jointly form a clamping locking structure, so that the automatic locking of the frame body can be prevented; when the pole was adjusted in clockwise rotation, two joint seats outwards removed simultaneously, and the elastic component was compressed this moment, and the tooth row was the state of breaking away from with the latch this moment, and two joint seats inwards removed simultaneously when the pole was adjusted in anticlockwise rotation, and the elastic component was the state of extending this moment, and tooth row and latch mutual joint under the elastic stretching force effect of elastic component.

Further, the framework includes anti-skidding arch, the welding of rectangular array form is personally submitted to the framework bottom has a plurality of anti-skidding archs, and anti-skidding arch is wavy structure to anti-skidding arch cross-section is triangle-shaped structure.

Furthermore, the frame body also comprises a rectangular hole and two clamping teeth, the two clamping teeth are symmetrically welded on the front end face of the frame body, and the two clamping teeth are symmetrically welded on the rear end face of the frame body; the front end face of the frame body is also provided with a rectangular hole, and the rear end face of the frame body is also provided with a rectangular hole; the bottom end surfaces of the inner walls of the rectangular holes are flush with the bottom plate of the frame body, and the two rectangular holes jointly form a drainage structure of the frame body.

Furthermore, the rope adjusting structure comprises a rotating connecting seat, a rotating shaft, a gear, a clamping pin seat and an elastic bolt, wherein the rotating connecting seat is welded on the top end surface of the frame body, the rotating connecting seat is rotatably connected with the rotating shaft, and a steel wire rope is fixedly bound on the rotating shaft; a gear is welded on the rotating shaft, and teeth on the gear are ratchets; the bayonet lock seat is welded on the rotary connecting seat, and an elastic bolt is welded on the bayonet lock seat; the head end of the elastic bolt is mutually inserted with the gear, and the gear and the elastic bolt jointly form a ratchet wheel adjusting structure.

Furthermore, the protective structure comprises four protective plates, and each protective plate is of an L-shaped plate structure; four the guard plate is respectively through bolt fixed connection in the base outside, and four guard plates all contact with the framework outside to the limit structure of framework and the protective type structure of slip telescopic link are constituteed jointly to the guard plate of four L forms.

Furthermore, the protection structure also comprises an adjusting rod which is rotatably connected to the two protection seats, the adjusting rod is in threaded connection with the two clamping seats, and the directions of threads at two ends of the adjusting rod are opposite; when the adjusting rod is rotated, the two clamping seats move in opposite directions simultaneously, and the adjusting rod and the protective seat with opposite thread directions at two ends jointly form a quick adjusting structure of the clamping seats.

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

improved lift and protective structure, stability when can realizing going up and down through improving the back, and can improve and go up and down with slip telescopic link's protective capacities, and rise and can realize the automatic joint shutting of framework after finishing, the security is higher, specifically as follows:

firstly, the four L-shaped protection plates jointly form a limiting structure of the frame body and a protective structure of the sliding telescopic rod, so that the stability of the frame body can be further improved, and the phenomenon that the telescopic rod is deformed and cannot stretch due to the fact that a foreign object touches the telescopic rod of the sliding telescopic rod can be prevented; secondly, each group of sliding rods is sleeved with an elastic piece, and each clamping seat is welded with a tooth row; the gear row and the clamping teeth are mutually clamped, the gear row and the clamping teeth are right-angle teeth, the gear row and the clamping teeth jointly form a clamping locking structure, and the gear row and the clamping teeth are mutually clamped under the action of elastic stretching force of the elastic part, so that the automatic locking of the frame body can be prevented; when the adjusting frame body descends, the adjusting rod is rotated to adjust the position of the tooth row, and at the moment, the thread directions of the two ends of the adjusting rod are opposite; when the adjusting rod is rotated, the two clamping seats move in opposite directions simultaneously, and the adjusting rod and the protective seat with opposite thread directions at two ends jointly form a quick adjusting structure of the clamping seats.

The improved frame structure can improve the anti-skid capacity of the frame bottom plate through improvement, and can realize the quick adjustment of the suspension cable, and the improved frame structure is specifically as follows: firstly, a plurality of anti-skid bulges are welded on the bottom end of the frame body in a rectangular array shape, the anti-skid bulges are in a wavy structure, and the cross sections of the anti-skid bulges are in a triangular structure, so that the anti-skid capacity of the anti-skid bulges in the wavy structure in multiple directions can be improved, and the anti-skid capacity can be further improved by sharp top parts of the anti-skid bulges in the triangular structure; secondly, a rectangular hole is also formed in the front end face of the frame body, and a rectangular hole is also formed in the rear end face of the frame body; the bottom end surfaces of the inner walls of the rectangular holes are flush with the bottom plate of the frame body, and the two rectangular holes jointly form a drainage structure of the frame body, so that accumulated water in the frame body can be prevented from causing, and constructors can slip; thirdly, because of the ratchet adjustment structure is constituteed jointly to gear and elasticity bolt, when the wire rope lax that connects leads to the framework slope in four pivots, the adjustment is realized to the accessible rotation pivot.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic axial view of the raised frame of the present invention.

Fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention.

Fig. 5 is an enlarged view of the structure of fig. 3B according to the present invention.

Fig. 6 is an enlarged axial view of the frame of the present invention.

Fig. 7 is an enlarged view of the structure of fig. 6 according to the present invention.

Fig. 8 is an enlarged, axial view of the protective structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base; 2. sliding the telescopic rod; 3. a hydraulic telescopic rod; 4. a frame body; 401. anti-skid projections; 402. a rectangular hole; 403. clamping teeth; 5. a rope adjustment structure; 501. rotating the connecting seat; 502. a rotating shaft; 503. a gear; 504. a latch seat; 505. an elastic bolt; 6. a protective structure; 601. a protection plate; 602. a protective seat; 603. a slide bar; 604. a clamping seat; 60401. a tooth row; 605. an elastic member; 606. and adjusting the rod.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides an auxiliary frame body with high safety performance for mounting a light-transmitting plate of an energy-saving building, which comprises a base 1; four corner positions of the top end face of the base 1 are fixedly connected with a sliding telescopic rod 2 through bolts, and the center position of the top end face of the base 1 is fixedly connected with a hydraulic telescopic rod 3 through bolts; the top end surfaces of the sliding telescopic rod 2 and the hydraulic telescopic rod 3 are fixedly connected with the bottom end surface of the frame body 4, and four corner positions at the top of the frame body 4 are provided with a rope adjusting structure 5; the outer side of the base 1 is fixedly connected with a protective structure 6 through bolts; referring to fig. 3 and 4, the protective structure 6 further includes a protective seat 602, sliding rods 603, clamping seats 604, tooth rows 60401 and elastic members 605, wherein one protective seat 602 is welded on the two protective plates 601 on the front side together, two groups of four sliding rods 603 are symmetrically and slidably connected to the protective seat 602, and one clamping seat 604 is welded on each group of sliding rods 603; each group of sliding rods 603 is sleeved with an elastic part 605, and each clamping seat 604 is welded with a tooth row 60401; the gear row 60401 and the latch 403 are clamped with each other, the gear row 60401 and the latch 403 are both right-angle teeth, and the gear row 60401 and the latch 403 jointly form a clamping locking structure, so that automatic locking of the frame body 4 can be prevented; referring to fig. 3 and 4, when the adjusting lever 606 is rotated clockwise, the two engaging seats 604 move outwards at the same time, the elastic member 605 is compressed, and the tooth row 60401 and the latch 403 are in a disengaged state at this time, and when the adjusting lever 606 is rotated counterclockwise, the two engaging seats 604 move inwards at the same time, and the elastic member 605 is in an extended state, and the tooth row 60401 and the latch 403 are engaged with each other under the elastic extending force of the elastic member 605.

Referring to fig. 6 and 7, the frame 4 includes the anti-skid protrusions 401, the bottom end of the frame 4 is welded with a plurality of anti-skid protrusions 401 in a rectangular array, the anti-skid protrusions 401 are in a wave-shaped structure, and the cross section of each anti-skid protrusion 401 is in a triangular structure, so that the anti-skid protrusions 401 in the wave-shaped structure can improve the anti-skid capability in multiple directions, and the sharp portions at the tops of the anti-skid protrusions 401 in the cross-section triangular structure can further improve the anti-skid capability.

Referring to fig. 6, the frame 4 further includes a rectangular hole 402 and two latches 403, two latches 403 are symmetrically welded on the front end surface of the frame 4, and two latches 403 are also symmetrically welded on the rear end surface of the frame 4; the front end face of the frame body 4 is also provided with a rectangular hole 402, and the rear end face of the frame body 4 is also provided with a rectangular hole 402; the inner wall bottom end face of rectangular hole 402 and framework 4 bottom plate parallel and level, and two rectangular holes 402 have constituteed framework 4's drainage structures jointly to can prevent that ponding from appearing in the framework 4 and leading to, and then lead to constructor to slip.

Referring to fig. 6, the rope adjusting structure 5 includes a rotation connecting seat 501, a rotating shaft 502, a gear 503, a bayonet lock seat 504 and an elastic plug 505, the rotation connecting seat 501 is welded on the top end surface of the frame 4, the rotating shaft 502 is rotatably connected to the rotation connecting seat 501, and a steel rope is fixed on the rotating shaft 502 by binding; a gear 503 is welded on the rotating shaft 502, and teeth on the gear 503 are ratchets; the bayonet socket 504 is welded on the rotary connecting seat 501, and an elastic plug 505 is welded on the bayonet socket 504; the head end of the elastic plug 505 is inserted into the gear 503, and the gear 503 and the elastic plug 505 together form a ratchet adjusting structure, so that when the steel wire ropes connected to the four rotating shafts 502 are loosened to cause the frame 4 to incline, the adjustment can be realized by rotating the rotating shafts 502.

Referring to fig. 3, the protective structure 6 includes four protective plates 601, and each of the protective plates 601 is an L-shaped plate structure; four guard plates 601 are respectively in the base 1 outside through bolt fixed connection, and four guard plates 601 all contact with the framework 4 outside to the limit structure of framework 4 and the protected structure of slip telescopic link 2 are constituteed jointly to the guard plate 601 of four L forms, thereby can further improve framework 4's stability, and can prevent that the telescopic link touching of foreign object and slip telescopic link 2 from leading to the telescopic link to warp and can't realize stretching out and drawing back.

Referring to fig. 3 and 4, the shielding structure 6 further includes an adjusting rod 606, the adjusting rod 606 is rotatably connected to the two shielding seats 602, the adjusting rod 606 is in threaded connection with the two clamping seats 604, and the thread directions of the two ends of the adjusting rod 606 are opposite; when the adjusting rod 606 is rotated, the two clamping seats 604 move in opposite directions simultaneously, and the adjusting rod 606 with opposite thread directions at two ends and the protection seat 602 together form a quick adjusting structure of the clamping seat 604.

The specific use mode and function of the embodiment are as follows:

when the telescopic rod lifting device is used, the hydraulic telescopic rod 3 is driven to lift the frame body 4, and at the moment, the first and fourth L-shaped protection plates 601 jointly form a limiting structure of the frame body 4 and a protective structure of the sliding telescopic rod 2, so that the stability of the frame body 4 can be further improved, and the telescopic rod is prevented from deforming and being incapable of stretching due to the fact that a foreign object touches the telescopic rod of the sliding telescopic rod 2; secondly, each group of sliding rods 603 is sleeved with an elastic part 605, and each clamping seat 604 is welded with a tooth row 60401; the gear row 60401 and the latch 403 are clamped with each other, the gear row 60401 and the latch 403 are both right-angle gears, the gear row 60401 and the latch 403 jointly form a clamping and locking structure, and the gear row 60401 and the latch 403 are clamped with each other under the action of elastic stretching force of the elastic piece 605, so that automatic locking of the frame body 4 can be prevented;

when the adjusting frame 4 descends, the adjusting rod 606 is rotated to adjust the position of the tooth row 60401, and at this time, the thread directions of the two ends of the adjusting rod 606 are opposite; when the adjusting rod 606 is rotated, the two clamping seats 604 move in opposite directions simultaneously, and the adjusting rod 606 with opposite thread directions at two ends and the protection seat 602 form a quick adjusting structure of the clamping seat 604 together;

in the use process, firstly, a plurality of anti-skid protrusions 401 are welded on the bottom end surface of the frame body 4 in a rectangular array shape, the anti-skid protrusions 401 are of a wavy structure, the cross sections of the anti-skid protrusions 401 are of a triangular structure, so that the anti-skid capability of the anti-skid protrusions 401 of the wavy structure in multiple directions can be improved, and the anti-skid capability of the sharp-pointed parts of the tops of the anti-skid protrusions 401 of the triangular structure in cross section can be further improved; secondly, a rectangular hole 402 is also formed in the front end face of the frame body 4, and a rectangular hole 402 is also formed in the rear end face of the frame body 4; the inner wall bottom end face of rectangular hole 402 and framework 4 bottom plate parallel and level, and two rectangular holes 402 have constituteed framework 4's drainage structures jointly to can prevent that ponding from appearing in the framework 4 and leading to, and then lead to constructor to slip.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A supplementary support body that security performance is high for energy-conserving building light-passing board installation, its characterized in that: comprises a base (1); four corner positions of the top end face of the base (1) are fixedly connected with a sliding telescopic rod (2) through bolts, and the center position of the top end face of the base (1) is fixedly connected with a hydraulic telescopic rod (3) through bolts; the top end surfaces of the sliding telescopic rod (2) and the hydraulic telescopic rod (3) are fixedly connected with the bottom end surface of the frame body (4), and four corner positions at the top of the frame body (4) are respectively provided with a rope adjusting structure (5); the outer side of the base (1) is fixedly connected with a protective structure (6) through bolts; the protective structure (6) further comprises a protective seat (602), sliding rods (603), clamping seats (604), a gear row (60401) and an elastic piece (605), wherein the protective seat (602) is welded on the two protective plates (601) on the front side together, the protective seat (602) is symmetrically connected with two groups of four sliding rods (603), and each group of sliding rods (603) is welded with one clamping seat (604); each group of sliding rods (603) is sleeved with an elastic piece (605), and each clamping seat (604) is welded with a tooth row (60401); the gear row (60401) and the latch (403) are mutually clamped, the gear row (60401) and the latch (403) are both right-angle teeth, and the gear row (60401) and the latch (403) jointly form a clamping locking structure; when the adjusting rod (606) is rotated clockwise, the two clamping seats (604) move outwards simultaneously, the elastic part (605) is compressed, the gear row (60401) and the clamping teeth (403) are in a separated state at the moment, when the adjusting rod (606) is rotated anticlockwise, the two clamping seats (604) move inwards simultaneously, the elastic part (605) is in an extending state at the moment, and the gear row (60401) and the clamping teeth (403) are clamped with each other under the action of elastic extending force of the elastic part (605);

the frame body (4) further comprises a rectangular hole (402) and clamping teeth (403), the two clamping teeth (403) are symmetrically welded on the front end face of the frame body (4), and the two clamping teeth (403) are symmetrically welded on the rear end face of the frame body (4); the front end face of the frame body (4) is also provided with a rectangular hole (402), and the rear end face of the frame body (4) is also provided with a rectangular hole (402); the bottom end surface of the inner wall of each rectangular hole (402) is flush with the bottom plate of the frame body (4), and the two rectangular holes (402) jointly form a drainage structure of the frame body (4);

the protective structure (6) comprises four protective plates (601), and each protective plate (601) is of an L-shaped plate structure; four protection plate (601) are respectively through bolt fixed connection in base (1) outside, and four protection plate (601) all contact with framework (4) outside to the limit structure of framework (4) and the protective type structure of slip telescopic link (2) are constituteed jointly to four L form protection plate (601).

2. The auxiliary frame body with high safety performance for installing the light-transmitting plates of the energy-saving building as claimed in claim 1, is characterized in that: framework (4) are including skid-proof protrusion (401), framework (4) bottom personally submits rectangular array form welding and has a plurality of skid-proof protrusion (401), and skid-proof protrusion (401) are wavy structure to skid-proof protrusion (401) cross-section is three horn structure.

3. The auxiliary frame body with high safety performance for installing the light-transmitting plates of the energy-saving building as claimed in claim 1, is characterized in that: the rope adjusting structure (5) comprises a rotating connecting seat (501), a rotating shaft (502), a gear (503), a bayonet lock seat (504) and an elastic bolt (505), the rotating connecting seat (501) is welded on the top end face of the frame body (4), the rotating connecting seat (501) is rotatably connected with the rotating shaft (502), and a steel wire rope is bound and fixed on the rotating shaft (502); a gear (503) is welded on the rotating shaft (502), and teeth on the gear (503) are ratchets; the bayonet socket (504) is welded on the rotary connecting seat (501), and an elastic plug pin (505) is welded on the bayonet socket (504); the head end of the elastic bolt (505) is mutually inserted with the gear (503), and the gear (503) and the elastic bolt (505) jointly form a ratchet wheel adjusting structure.

4. The auxiliary frame body with high safety performance for installing the light-transmitting plates of the energy-saving building as claimed in claim 1, is characterized in that: the protective structure (6) further comprises an adjusting rod (606), the adjusting rod (606) is rotatably connected to the two protective seats (602), the adjusting rod (606) is in threaded connection with the two clamping seats (604), and the directions of threads at two ends of the adjusting rod (606) are opposite; when the adjusting rod (606) is rotated, the two clamping seats (604) move in opposite directions simultaneously, and the adjusting rod (606) with opposite thread directions at two ends and the protective seat (602) jointly form a quick adjusting structure of the clamping seats (604).