阅读说明：本技术 装配式梁柱连接装置 (Assembled beam column connecting device ) 是由 袁昌勇 车军伟 程帅 夏中平 方诗博 于 2021-09-28 设计创作，主要内容包括：本发明涉及钢结构的连接技术领域。公开了装配式梁柱连接装置,包括活动块和与柱固接的固定块,活动块的一侧设有与工字钢可拆卸连接的凹槽,活动块的另一侧设有异形件；固定块上设有用于与异形件卡接的异形槽,且异形件与固定块可拆卸连接；还包括异形件与异形槽卡接后对异形件限位的限位机构。本方案主要解决了目前工字钢与柱连接后并无对工字钢的支撑结构,使得两者的连接稳定性偏低,将直接导致工字钢变形或脱落的问题。(The invention relates to the technical field of connection of steel structures. The assembled beam-column connecting device comprises a movable block and a fixed block fixedly connected with a column, wherein one side of the movable block is provided with a groove detachably connected with an I-shaped steel, and the other side of the movable block is provided with a special-shaped piece; the fixed block is provided with a special-shaped groove used for being clamped with the special-shaped piece, and the special-shaped piece is detachably connected with the fixed block; the special-shaped part limiting mechanism is clamped with the special-shaped groove and then limits the special-shaped part. This scheme has mainly been solved and has not had the bearing structure to the I-steel after present I-steel and post are connected for connection stability between them is on the low side, will directly lead to the problem that the I-steel warp or drop.)

1. Assembled beam column connecting device, its characterized in that: the movable block is fixedly connected with the column, a groove detachably connected with the I-shaped steel is formed in one side of the movable block, and a special-shaped piece is arranged on the other side of the movable block; the fixed block is provided with a special-shaped groove used for being clamped with the special-shaped piece, and the special-shaped piece is detachably connected with the fixed block; the special-shaped part limiting mechanism is clamped with the special-shaped groove and then limits the special-shaped part.

2. The fabricated beam-column connecting device according to claim 1, wherein: the limiting mechanism comprises a cavity arranged in the special-shaped piece and a rotating shaft rotationally connected with the special-shaped piece, side grooves communicated with the cavity are formed in the two sides of the cavity, side blocks are connected in the side grooves in a sliding mode, a first spring is arranged between each side block and the cavity, inner grooves communicated with the side grooves are formed in the two sides of the special-shaped groove, and the side blocks are in sliding fit with the inner grooves; the rotating shaft is provided with an oval block for extruding the side block; the inner groove is provided with a first threaded hole; a second threaded hole communicated with the first threaded hole is formed in the fixed block, and a first threaded rod in threaded connection with the first threaded hole is connected to the second threaded hole in a threaded mode; the side block is provided with a first through hole used for communicating with the first threaded hole and the second threaded hole, and the first threaded rod is in clearance fit with the first through hole.

3. The fabricated beam-column connecting device according to claim 2, wherein: an auxiliary groove is arranged on the inner wall of the inner groove, a first wedge block is connected in the auxiliary groove in a sliding mode, and a second spring is arranged between the first wedge block and the auxiliary groove; one end of the side block, which is far away from the oval block, is provided with a second wedge block for extruding the first wedge block, and the second wedge block is provided with a wedge groove for the first wedge block to extend into.

4. The fabricated beam-column connecting device according to claim 3, wherein: the bottom of fixed block is equipped with the guide block, and sliding connection has the supporting shoe that is used for offseting with the fixed block bottom on the guide block, and the supporting shoe can be dismantled with the fixed block and be connected.

5. The fabricated beam-column connecting device according to claim 4, wherein: the top of the supporting block is provided with a third wedge block, the bottom of the fixing block is provided with a vertical groove, and the third wedge block is in sliding fit with the vertical groove; a transverse groove communicated with the vertical groove is formed in the side wall of the fixed block, a fourth wedge block extruded by the third wedge block is connected in the transverse groove in a sliding mode, and a third spring is arranged between the fourth wedge block and the transverse groove; a positioning groove for the fourth wedge block to extend into is transversely formed in the side wall of the movable block, a third threaded hole is formed in the movable block, and a second threaded rod is connected to the third threaded hole in a threaded mode; and one end of the fourth wedge block, which is far away from the third wedge block, is provided with a second through hole which is communicated with the third threaded hole.

6. The fabricated beam-column connecting device according to claim 5, wherein: the bottom of the fixed block is provided with a bottom groove communicated with the special-shaped groove, the bottom of the special-shaped piece is provided with a bottom block extending into the bottom groove, the bottom of the bottom block is provided with an auxiliary groove, and two sides of the auxiliary groove are provided with stop blocks; the top of the supporting block is provided with a top block which is used for extending into the auxiliary groove, and two sides of the top block are provided with elastic blocks; the distance between the two elastic blocks is smaller than the width of the auxiliary groove, and the distance between the two elastic blocks is larger than the gap between the two stop blocks.

7. The fabricated beam-column connecting device according to claim 6, wherein: the top of the supporting block is provided with a semicircular groove, a circular shaft is rotatably connected to the semicircular groove, an arc-shaped arc block is arranged on the circular shaft, and the free end of the arc block extends out of the semicircular groove; the bottom of fixed block is equipped with and is used for the communicating arc wall with the semicircle trough, and arc piece and arc wall sliding fit.

Technical Field

The invention relates to the technical field of connection of steel structures.

Background

The assembly type steel structure system is a building produced by manufacturing units or components according to the specifications of building parts of uniform standard and then transporting the units or components to a construction site for assembly in place; the building construction method has the characteristics of light building weight, high energy-saving and environment-friendly construction speed, high industrialization degree and the like, can solve the problems of low building industrialization level, low building construction labor productivity, low quality of traditional house products and the like in China, and is suitable for the development of the building industry in China.

At present, the connection mode of steel construction assembled beam column is: the upper flange and the lower flange of the beam end of the I-steel are welded with the column on site, and the web plate of the beam end of the I-steel is bolted with the column through the shear plate; in the actual use process, there is not the bearing structure to the I-steel after I-steel and post are connected for the connection stability of both is on the low side, will directly lead to the I-steel to warp or drop.

Disclosure of Invention

The invention aims to provide an assembly type beam-column connecting device to solve the problem that the existing I-steel is connected with a column and then does not have a supporting structure for the I-steel, so that the connection stability of the I-steel and the column is low, and the I-steel is directly deformed or falls off.

In order to achieve the above object, the basic scheme of the invention is as follows: the assembled beam column connecting device comprises a movable block and a fixed block fixedly connected with a column, wherein one side of the movable block is provided with a groove detachably connected with an I-shaped steel, and the other side of the movable block is provided with a special-shaped piece; the fixed block is provided with a special-shaped groove used for being clamped with the special-shaped piece, and the special-shaped piece is detachably connected with the fixed block; the special-shaped part limiting mechanism is clamped with the special-shaped groove and then limits the special-shaped part.

The advantages of the basic scheme are:

1. according to the scheme, the I-steel is placed into the groove, so that the upper beam and the lower beam of the I-steel are respectively abutted against the upper inner wall and the lower inner wall of the groove, and then the I-steel is connected with the groove, so that the connection between the I-steel and the movable block is realized; placing the special-shaped piece into the special-shaped groove from top to bottom, clamping the special-shaped piece with the special-shaped groove, and then connecting the special-shaped piece with the fixed block, so that the fixed block is connected with the movable block, and further the I-shaped steel is connected with the column; compare in prior art, after I-steel and column connection, this scheme is because the I-steel is located the recess, consequently can play the supporting role to the I-steel through the movable block, and then avoids the I-steel to warp or drop.

2. This scheme dysmorphism piece and dysmorphism groove joint back can also play limiting displacement to dysmorphism piece through stop gear, and then improve the stability that dysmorphism piece leads to special-shaped groove and connects.

Furthermore, the limiting mechanism comprises a cavity arranged in the special-shaped piece and a rotating shaft rotationally connected with the special-shaped piece, side grooves communicated with the cavity are formed in the two sides of the cavity, side blocks are connected in the side grooves in a sliding mode, a first spring is arranged between each side block and the cavity, inner grooves communicated with the side grooves are formed in the two sides of the special-shaped groove, and the side blocks are in sliding fit with the inner grooves; the rotating shaft is provided with an oval block for extruding the side block; the inner groove is provided with a first threaded hole; a second threaded hole communicated with the first threaded hole is formed in the fixed block, and a first threaded rod in threaded connection with the first threaded hole is connected to the second threaded hole in a threaded mode; the side block is provided with a first through hole used for communicating with the first threaded hole and the second threaded hole, and the first threaded rod is in clearance fit with the first through hole.

Through the arrangement, the rotating shaft is rotated, the rotating shaft drives the oval block to rotate, and the oval block extrudes the side block through the arc-shaped surface to move along the path of the side groove, so that the first spring is compressed; when two long shaft ends of the oval block abut against the two side blocks respectively, the side blocks extend into the inner groove, the rotating shaft stops rotating, at the moment, the first threaded hole and the second threaded hole are communicated with the first through hole, the first threaded rod is rotated to move downwards, the first threaded rod penetrates through the first through hole to be in threaded connection with the first threaded hole, and then the first threaded rod stops rotating; therefore, through the threaded connection of first threaded rod and first screw hole, second screw hole can fix a position first threaded rod, and first threaded rod can play spacing effect to the side piece through first through-hole, and then avoids the reverse roll-off inside groove of side piece, can play spacing effect to dysmorphism piece through the side piece promptly, has also improved the stability that dysmorphism piece and dysmorphism groove are connected, and then has improved the stability that dysmorphism piece and mounting are connected.

Furthermore, an auxiliary groove is arranged on the inner wall of the inner groove, a first wedge block is connected in the auxiliary groove in a sliding mode, and a second spring is arranged between the first wedge block and the auxiliary groove; one end of the side block, which is far away from the oval block, is provided with a second wedge block for extruding the first wedge block, and the second wedge block is provided with a wedge groove for the first wedge block to extend into.

Through the arrangement, when the side block extends into the inner groove, the side block drives the second wedge block to move synchronously, so that the second wedge block extrudes the first wedge block to move towards the inner part of the auxiliary groove, and the second spring is compressed; the second wedge block continues to move, so that the first wedge block is abutted against the side wall of the second wedge block; the second wedge block continues to move, when two long axis ends of the oval block respectively abut against the two side blocks, the first wedge block is opposite to the wedge groove, so that the first wedge block extends into the wedge groove under the action of the second spring, and the first wedge block abuts against the wedge groove, and further the limiting effect on the side blocks is enhanced.

Furthermore, the bottom of fixed block is equipped with the guide block, and sliding connection has the supporting shoe that is used for offseting with the fixed block bottom on the guide block, and the supporting shoe can be dismantled with the fixed block and be connected.

Through the arrangement, after the fixed block is connected with the movable block, the supporting block slides upwards, and when the supporting block abuts against the fixed block, the supporting block and the fixed block are connected, so that the supporting function of the fixed block can be achieved through the supporting block, and the supporting function of the I-shaped steel can be achieved.

Further, a third wedge block is arranged at the top of the supporting block, a vertical groove is formed in the bottom of the fixing block, and the third wedge block is in sliding fit with the vertical groove; a transverse groove communicated with the vertical groove is formed in the side wall of the fixed block, a fourth wedge block extruded by the third wedge block is connected in the transverse groove in a sliding mode, and a third spring is arranged between the fourth wedge block and the transverse groove; a positioning groove for the fourth wedge block to extend into is transversely formed in the side wall of the movable block, a third threaded hole is formed in the movable block, and a second threaded rod is connected to the third threaded hole in a threaded mode; and one end of the fourth wedge block, which is far away from the third wedge block, is provided with a second through hole which is communicated with the third threaded hole.

Through the arrangement, during the upward movement of the supporting block, the supporting block drives the third wedge block to extend into the vertical groove, so that the third wedge block extrudes the fourth wedge block to move along the path of the transverse groove, and the third spring compresses; when the supporting block abuts against the fixed block, the fourth wedge block extends into the positioning groove, and the third threaded hole is communicated with the second through hole; after the supporting block is connected with the fixed block, the second threaded rod is rotated to move downwards, so that the second threaded rod penetrates through the second through hole; therefore, through the threaded connection of second threaded rod and second screw hole can fix a position the second threaded rod, the second threaded rod can play spacing effect to the fourth voussoir through the second through-hole, can improve the stability that fixed block and movable block are connected on the one hand through the fourth voussoir promptly, and then improve I-steel and column connection's stability, on the other hand can also improve the stability to movable block, I-steel support.

Further, the bottom of the fixed block is provided with a bottom groove communicated with the special-shaped groove, the bottom of the special-shaped piece is provided with a bottom block extending into the bottom groove, the bottom of the bottom block is provided with an auxiliary groove, and two sides of the auxiliary groove are provided with stop blocks; the top of the supporting block is provided with a top block which is used for extending into the auxiliary groove, and two sides of the top block are provided with elastic blocks; the distance between the two elastic blocks is smaller than the width of the auxiliary groove, and the distance between the two elastic blocks is larger than the gap between the two stop blocks.

Through the arrangement, the supporting block drives the top block to sequentially extend into the bottom groove and the auxiliary groove during the upward movement of the supporting block; the supporting shoe continues the rebound, when the supporting shoe offsets with the fixed block, because the elastic block has elasticity, consequently the top that the dog is located the dog is crossed to the elastic block, and the bottom of elastic block offsets with the top of baffle this moment to this realization is spacing to the kicking block, and then improves the stability that the supporting shoe is connected with the fixed block, also improves the stability that the supporting shoe supported the fixed block.

Furthermore, a semicircular groove is formed in the top of the supporting block, a circular shaft is rotatably connected to the semicircular groove, an arc-shaped arc block is arranged on the circular shaft, and the free end of the arc block extends out of the semicircular groove; the bottom of fixed block is equipped with and is used for the communicating arc wall with the semicircle trough, and arc piece and arc wall sliding fit.

Through the arrangement, when the supporting block abuts against the fixed block, the semi-circular groove is communicated with the arc-shaped groove, and the free end of the arc-shaped block extends into the arc-shaped groove; after the supporting shoe is connected with the fixed block, rotate the circle axle, the circle axle drives the arc piece and rotates 180 degrees along the arc wall for the free end of arc piece stretches into the half slot, and the stall circle axle to this can play spacing effect to the supporting shoe, and then improves the stability that the supporting shoe is connected with the fixed block, also improves the stability that the supporting shoe supported the fixed block.

Drawings

FIG. 1 is a partial cross-sectional view in elevation of an embodiment of the fabricated beam-column connection of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a partial cross-sectional view taken in the top view of FIG. 1;

fig. 4 is a right side view of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a column 1, an I-steel 2, a movable block 3, a fixed block 4, a groove 5, a convex block 6, a special-shaped piece 7, a chamber 8, a rotating shaft 9, a side block 10, a first spring 11, an oval block 12, a first wedge block 13, a second spring 14, a second wedge block 15, a first threaded rod 16, a third threaded rod 17, a guide block 18, a support block 19, a fourth threaded rod 20, a third wedge block 21, a fourth wedge block 22, a third spring 23, a second threaded rod 24, a fifth threaded rod 25, a bottom block 26, a stop block 27, a top block 28, an elastic block 29, a round shaft 30 and an arc-shaped block 31.

Examples

Substantially as shown in figures 1, 2, 3 and 4: the assembled beam column connecting device comprises a movable block 3 and a fixed block 4 fixedly connected with a column 1, wherein a groove 5 is formed in the right side of the movable block 3, lugs 6 which are abutted against the I-shaped steel 2 are fixedly connected to two sides of the side wall of the groove 5, and the distance between the two lugs 6 is consistent with the width of a vertical beam of the I-shaped steel 2; the left side of the movable block 3 is integrally connected with a special-shaped piece 7, and the fixed block 4 is provided with a special-shaped groove used for being clamped with the special-shaped piece 7; the special-shaped part 7 is clamped with the special-shaped groove and then a limiting mechanism for limiting the special-shaped part 7 is further included; the limiting mechanism comprises a cavity 8 arranged in the special-shaped piece 7 and a rotating shaft 9 rotationally connected with the special-shaped piece 7, side grooves communicated with the cavity 8 are formed in the two sides of the cavity 8, side blocks 10 are connected in the side grooves in a sliding mode, a first spring 11 is fixedly connected between each side block 10 and the cavity 8, inner grooves communicated with the side grooves are formed in the two sides of the special-shaped groove, and the side blocks 10 are in sliding fit with the inner grooves; an elliptical block 12 is fixedly connected to the rotating shaft 9, the elliptical block 12 is located in the chamber 8, and an arc-shaped surface extruded by the elliptical block 12 is arranged at one end, away from the first elasticity, of the side block 10. An auxiliary groove is formed in the inner wall of the inner groove, a first wedge block 13 is connected in the auxiliary groove in a sliding mode, and a second spring 14 is fixedly connected between the first wedge block 13 and the auxiliary groove; one end of the side block 10 far away from the elliptical block 12 is fixedly connected with a second wedge block 15 used for extruding the first wedge block 13, the second wedge block 15 is in sliding fit with the side groove and the inner groove, and a wedge groove used for the first wedge block 13 to extend into is formed in the second wedge block 15.

Dysmorphism 7 can be dismantled with fixed block 4 and be connected, specifically are: after the special-shaped piece 7 is clamped with the special-shaped groove, a third threaded rod 17 penetrates through the special-shaped piece 7 and the fixed block 4, and the third threaded rod 17 is in threaded connection with the special-shaped piece 7 and the fixed block 4, so that the special-shaped piece 7 is fixedly connected with the fixed block 4.

The inner groove is provided with a first threaded hole; a second threaded hole used for being communicated with the first threaded hole is formed in the fixed block 4, a first threaded rod 16 is connected to the second threaded hole in an internal thread mode, and the first threaded rod 16 can also be connected with the first threaded hole in a threaded mode; the side block 10 is provided with a first through hole for communicating with the first threaded hole and the second threaded hole, and the first threaded rod 16 is in clearance fit with the first through hole.

The bottom of the fixed block 4 is integrally connected with a guide block 18, and the guide block 18 is also fixedly connected with the column 1; sliding connection has the supporting shoe 19 that is used for offseting with fixed block 4 bottom on the guide block 18, and supporting shoe 19 can be dismantled with fixed block 4 and be connected, specifically is: when the supporting block 19 abuts against the fixed block 4, the fourth threaded rod 20 penetrates through the supporting block 19 and the fixed block 4, and the fourth threaded rod 20 is in threaded connection with the supporting block 19 and the fixed block 4, so that the supporting block 19 is fixedly connected with the fixed block 4.

The top of the supporting block 19 is fixedly connected with a third wedge block 21, the bottom of the fixed block 4 is provided with a vertical groove, and the third wedge block 21 is in sliding fit with the vertical groove; a transverse groove communicated with the vertical groove is formed in the side wall of the fixed block 4, a fourth wedge block 22 extruded by the third wedge block 21 is connected in the transverse groove in a sliding mode, and a third spring 23 is fixedly connected between the fourth wedge block 22 and the transverse groove; a positioning groove for the fourth wedge block 22 to extend into is transversely formed in the side wall of the movable block 3, a third threaded hole is formed in the movable block 3, and a second threaded rod 24 is connected to the third threaded hole in an internal thread mode; and a second through hole communicated with the third threaded hole is formed in one end, away from the third wedge 21, of the fourth wedge 22.

The bottom of the fixed block 4 is provided with a bottom groove communicated with the special-shaped groove, the bottom of the special-shaped piece 7 is fixedly connected with a bottom block 26 extending into the bottom groove, the bottom of the bottom block 26 is provided with an auxiliary groove, and two sides of the auxiliary groove are fixedly connected with stop blocks 27; the top of the supporting block 19 is fixedly connected with a top block 28 which is used for extending into the auxiliary groove, the width of the top block 28 is smaller than that of the bottom groove, and the top block 28 is in clearance fit with the auxiliary groove; two sides of the top block 28 are fixedly connected with elastic blocks 29, in the embodiment, the elastic blocks 29 are elastic iron sheets, the elastic iron sheets are U-shaped, and two ends of each elastic iron sheet are fixedly connected with the top block 28; the distance between the two elastic blocks 29 is smaller than the width of the auxiliary groove, and the distance between the two elastic blocks 29 is larger than the gap between the two stoppers 27.

A semicircular groove is formed in the top of the supporting block 19, a circular shaft 30 is rotatably connected to the semicircular groove, an arc-shaped arc block 31 is fixedly connected to the circular shaft 30, and the free end of the arc block 31 extends out of the semicircular groove; the bottom of the fixed block 4 is provided with an arc-shaped groove used for communicating with the semi-circular groove, and the arc-shaped block 31 is in sliding fit with the arc-shaped groove.

The specific implementation process is as follows:

when the device works, the I-steel 2 is placed in the groove 5, so that the upper beam and the lower beam of the I-steel 2 are respectively abutted against the upper inner wall and the lower inner wall of the groove 5; a fifth threaded rod 25 penetrates through the groove 5 and the I-steel 2, the fifth threaded rod 25 is in threaded connection with the movable block 3 and the I-steel 2, a nut is in threaded connection with the fifth threaded rod 25, and the nut abuts against the bottom of the movable block 3, so that the I-steel 2 is connected with the movable block 3; and, fifth threaded rod 25 and lug 6 threaded connection, the perpendicular roof beam of I-steel 2 still is located between two lugs 6 for lug 6 offsets with the perpendicular roof beam of I-steel 2, upper and lower roof beam, can strengthen the spacing effect to I-steel 2 on the one hand, and on the other hand can also improve the stability to I-steel 2 supports.

Then the special-shaped piece 7 is clamped with the special-shaped groove, so that the fixed block 4 is connected with the movable block 3, and the I-shaped steel 2 is connected with the column 1; the I-shaped steel 2 is positioned in the groove 5, so that the I-shaped steel 2 can be supported by the movable block 3; then the special-shaped part 7 and the fixed part are connected through a third threaded rod 17, so that the connection stability of the fixed block 4 and the movable block 3 is improved; rotating the rotating shaft 9, wherein the rotating shaft 9 drives the elliptical block 12 to rotate, and the elliptical block 12 extrudes the side block 10 to move along the path of the side groove through the arc-shaped surface, so that the first spring 11 is compressed; when two long axis ends of the elliptical block 12 are respectively abutted against the two side blocks 10, the side blocks 10 extend into the inner groove, the rotating shaft 9 stops rotating, at the moment, the first threaded hole and the second threaded hole are communicated with the first through hole, the first threaded rod 16 is rotated to move downwards, the first threaded rod 16 penetrates through the first through hole to be in threaded connection with the first threaded hole, and then the first threaded rod 16 stops rotating; therefore, threaded connection through first threaded rod 16 and first screw hole, second screw hole can fix a position first threaded rod 16, and first threaded rod 16 can play spacing effect to side piece 10 through first through-hole, and then avoids the reverse roll-off inside groove of side piece 10, can play spacing effect to dysmorphism piece 7 through side piece 10 promptly, has also improved the stability that dysmorphism piece 7 is connected with the dysmorphism groove, and then has improved the stability that dysmorphism piece 7 is connected with the mounting.

During the period that the side block 10 extends into the inner groove, the side block 10 drives the second wedge block 15 to move synchronously, so that the second wedge block 15 extrudes the first wedge block 13 to move towards the inner part of the auxiliary groove, and the second spring 14 is compressed; the second wedge 15 continues to move, so that the first wedge 13 abuts against the side wall of the second wedge 15; the second wedge block 15 continues to move, when the two major axis ends of the oval block 12 respectively abut against the two side blocks 10, the first wedge block 13 is opposite to the wedge groove, so that the first wedge block 13 extends into the wedge groove under the action of the second spring 14, and the first wedge block 13 abuts against the wedge groove, thereby enhancing the limiting effect on the side blocks 10.

After the fixed block 4 and the movable block 3 are connected, the supporting block 19 slides upwards, and when the supporting block 19 abuts against the fixed block 4, the supporting block 19 and the fixed block 4 are connected by using the fourth threaded rod 20, so that the supporting block 19 can support the fixed block 4, namely the I-shaped steel 2.

During the upward movement of the supporting block 19, the supporting block 19 drives the third wedge 21 to extend into the vertical groove, so that the third wedge 21 presses the fourth wedge 22 to move along the path of the transverse groove, and the third spring 23 compresses; when the supporting block 19 abuts against the fixed block 4, the fourth wedge block 22 extends into the positioning groove, and the third threaded hole is communicated with the second through hole; after the supporting block 19 is connected with the fixed block 4, the second threaded rod 24 is rotated to move downwards, so that the second threaded rod 24 passes through the second through hole; therefore, threaded connection through second threaded rod 24 and second screw hole can fix a position second threaded rod 24, and second threaded rod 24 can play spacing effect through the second through-hole to fourth voussoir 22, can improve the stability that fixed block 4 and movable block 3 are connected on the one hand through fourth voussoir 22 promptly, and then improve the stability that I-steel 2 and post 1 are connected, and on the other hand can also improve the stability to movable block 3, the support of I-steel 2.

During the upward movement of the supporting block 19, the supporting block 19 drives the top block 28 to sequentially extend into the bottom groove and the auxiliary groove; supporting block 19 continues to move upwards, and when supporting block 19 offseted with fixed block 4, because elastic block 29 has elasticity, consequently elastic block 29 crosses dog 27 and is located the top of dog 27, and the bottom of elastic block 29 offsets with the top of baffle this moment to this realization is spacing to kicking block 28, and then improves supporting block 19 and fixed block 4 and is connected the stability, also improves supporting block 19 to the stability that fixed block 4 supported.

When the supporting block 19 abuts against the fixed block 4, the semicircular groove is communicated with the arc-shaped groove, and the free end of the arc-shaped block 31 extends into the arc-shaped groove; after supporting shoe 19 is connected with fixed block 4, rotate round axle 30, round axle 30 drives arc piece 31 and rotates 180 degrees along the arc wall for the free end of arc piece 31 stretches into the half-round inslot, and the stall round axle 30 to this can play spacing effect to supporting shoe 19, and then improves the stability that supporting shoe 19 and fixed block 4 are connected, also improves the stability that supporting shoe 19 supported fixed block 4.

The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.