CN112064499A

CN112064499A - Pre-buried connecting piece suitable for supplementary installation of bridge railing

Info

Publication number: CN112064499A
Application number: CN202010906756.8A
Authority: CN
Inventors: 邸见轮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2020-12-11

Abstract

The invention provides an embedded connecting piece suitable for auxiliary installation of a bridge guardrail, relates to the technical field of auxiliary installation of bridge guardrails, and solves the problems that a stud used for limiting and fixing a guardrail installation plate and the embedded part are designed into an integrated structure, when the stud cannot play a due fixing effect due to long-term rainwater corrosion, a guardrail column needs to be disassembled, then an embedded plate needs to be disassembled and replaced, the steps are complex, and the replacement period is long. The utility model provides a pre-buried connecting piece suitable for supplementary installation of bridge railing, includes square pre-buried board, through four groups of square pieces and four detachable fixed establishment cooperation fixed mounting of group between square pre-buried board and the guardrail post. When the stud A cannot achieve the corresponding fastening effect with the nut due to long-term rainwater corrosion, the detachable fixing mechanism is designed to be a detachable structure, so that maintenance personnel can replace the detachable fixing mechanism independently without detaching the guardrail column and detaching and replacing the square embedded plate.

Description

Pre-buried connecting piece suitable for supplementary installation of bridge railing

Technical Field

The invention belongs to the technical field of auxiliary installation of bridge guardrails, and particularly relates to an embedded connecting piece suitable for auxiliary installation of a bridge guardrail.

Background

The bridge guardrail is a guardrail arranged on a bridge. Its purpose is in order to prevent that the vehicle out of control from crossing outside the bridge, has the function that makes the vehicle can not break through, wear down, cross the bridge and beautify the bridge building.

For example, application No.: 201910889442.9 the invention discloses a road and bridge guardrail support with high safety and long service life, which comprises a first supporting block, wherein the road and bridge guardrail supporting device is composed of a first supporting block and a second supporting block, the first supporting block is fixedly arranged at the outer side of the road and bridge guardrail, the first supporting block is provided with a flowerpot holding device, the second supporting block is fixedly arranged at the inner side of the road and bridge guardrail, and the second supporting block is provided with a mounting groove, when the product is used, the first supporting block is firstly arranged at the outer side of the road and bridge guardrail, the second supporting block is arranged at the inner side of the road and bridge guardrail, so that the bridge guardrail can be more firmly and stably mounted, in darkness, a photosensitive sensor receives signals, and a warning lamp is arranged at the outer surface of the second supporting block, thereby reminding passing vehicles, improving the driving safety, being more energy-saving and environment-friendly, and simultaneously, the flowerpot holding device, the flowerpot can make the bridge guardrail more attractive.

Based on the retrieval of above-mentioned patent to and combine prior art discovery, the double-screw bolt that is used for spacing fixed guardrail mounting panel is with built-in fitting formula structural design as an organic whole, when the double-screw bolt can't play due fixed effect because of permanent rainwater corruption, need dismantle the guardrail post then and demolish and change the built-in plate, the step is complicated, and changes the cycle length.

Disclosure of Invention

In order to solve the technical problems, the invention provides an embedded connecting piece suitable for auxiliary installation of a bridge guardrail, and aims to solve the problems that when a stud used for limiting and fixing a guardrail installation plate and an embedded part are designed into an integrated structure, and the stud cannot play a due fixing effect due to long-term rainwater corrosion, a guardrail column needs to be disassembled, and then the embedded plate needs to be disassembled and replaced, so that the steps are complex, and the replacement period is long.

The invention relates to a purpose and an effect of a pre-buried connecting piece suitable for auxiliary installation of a bridge guardrail, which are achieved by the following specific technical means:

a pre-buried connecting piece suitable for auxiliary installation of a bridge guardrail comprises a square pre-buried plate, wherein the square pre-buried plate and a guardrail column are fixedly installed in a matched mode through four groups of square blocks and four groups of detachable fixing mechanisms; an inner hexagonal wrench which is matched with the detachable fixing mechanism in an inserting way is arranged; the detachable fixing mechanism comprises a round block, a round limiting groove, an arrow mark, a stud A, an inner hexagonal groove, a nut, a square extending block, a round accommodating groove B and a threaded through hole B, the round block and the round groove are consistent in size, the round limiting groove is arranged on the outer peripheral surface of the round block, the arrow mark is arranged on the top end surface of the round block, and the arrow head end of the arrow mark points to the round limiting groove part, the axle center part of the top end surface of the round block is fixedly connected with a stud A, and the axle center part of the top end surface of the stud A is provided with an inner hexagonal groove, the stud A is connected with a nut in a threaded manner, and a square extension block is arranged on one side end face of the nut, the bottom end face of the square extension block and the bottom end face of the nut are positioned on the same horizontal plane, a circular containing groove B is formed in the center of the top end face of the square extension block, and a threaded through hole B is formed in the axis position of the bottom end of the inner end of the circular containing groove B.

Further, the square embedded plate comprises a circular groove, a cylindrical accommodating cavity, a circular inserting sliding through hole, a threaded through hole A and a circular accommodating groove A, the included angle positions of the four edges of the top end face of the square embedded plate are provided with a circular groove, the inside of the square embedded plate on one side of the adjacent circular groove is provided with a cylindrical accommodating cavity, the cylindrical accommodating cavity is communicated with the circular groove through a circular inserting sliding through hole, the top end face of the square embedded plate is provided with a circular accommodating groove A relative to the circular inserting sliding through hole, and the axle center position of the bottom surface of the inner end of the circular accommodating groove A is communicated with the circular inserting sliding through hole through a threaded through hole A.

Furthermore, the square pre-embedded plate comprises a limiting mechanism, a circular sliding block, balls, a columnar limiting bolt, an inclined cutting surface and a return spring, wherein a group of limiting mechanisms are fixedly connected in the columnar containing cavity, the limiting mechanisms are composed of the circular sliding block, the balls, the columnar limiting bolt, the inclined cutting surface and the return spring, the periphery of the circular sliding block is in an annular array shape, six balls are embedded and rotatably installed in the annular array shape, the axis part of the top end surface of the circular sliding block is fixedly connected with the columnar limiting bolt, the periphery of the columnar limiting bolt is in an annular array shape, two inclined cutting surfaces are arranged, the bottom end surface of the columnar limiting bolt is fixedly connected with the return spring, the circular sliding block slides back and forth along the columnar containing cavity through the balls, the return spring is fixedly connected in the columnar containing cavity, the columnar limiting bolt is inserted in the circular inserting sliding, and one inclined cut surface of the columnar limiting bolt is opposite to the position of the threaded through hole A.

Furthermore, the square embedded plate comprises a fastening screw and a hemispherical bulge, the fastening screw is in threaded connection with the threaded through hole A, and the hemispherical bulge is arranged at the bottom end of the fastening screw.

Furthermore, the guardrail column comprises a square mounting plate, square notches and rectangular notches, the square mounting plate is arranged on the bottom end face of the guardrail column, the square mounting plate is provided with the square notches at the included angles of the four edges, and the rectangular notches are formed in the top end face of the square mounting plate relative to the inner end faces of the two positions of each square mounting plate.

Further, square piece is including the spacing recess of rectangle, circular hole site, the protruding piece of rectangle, square piece size is unanimous with square gap size, the spacing recess of a rectangle has been seted up to square piece top end face, and square piece top end face central point has seted up a circular hole site, all be provided with the protruding piece of rectangle unanimous with rectangle scarce groove size on the adjacent side end face in square piece two places, and protruding piece top end face of rectangle is in same horizontal plane with square piece top end face, under the square piece installation state, square piece is located square breach, two embedded installations of protruding piece of rectangle are in two rectangle scarce grooves.

Further, detachable fixed establishment is including fastening device, circle piece, oval-shaped groove, double-screw bolt B, and fastening device constitutes via circle piece, oval-shaped groove, double-screw bolt B jointly, and the circle piece diameter is unanimous with circular recess B diameter of accomodating, and circle piece top end face axle center position is seted up the oval-shaped groove that a appearance looks like circular structure, and circle piece top end face axle center position fixedly connected with a double-screw bolt B, and double-screw bolt B is connected with screw thread through-hole B screw thread.

Further, in the installation state of the detachable fixing mechanism, the circular block is located in the circular groove, the columnar limiting bolt is inserted in the circular limiting groove, the stud A penetrates through the circular hole, the bottom end face of the nut is tightly attached to the top end face of the square block, the top end face of the circular block and the top end face of the square extending block are located on the same horizontal plane, and the bottom end of the stud B is located in the rectangular limiting groove.

Furthermore, the inner hexagonal wrench comprises a hanging ring and an oval block, the outer side of the short end of the inner hexagonal wrench is fixedly connected with the hanging ring, and the bottom end face of the long end of the inner hexagonal wrench is provided with the oval block with the size consistent with that of the oval groove.

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

when the stud A cannot achieve the corresponding fastening effect with the nut due to long-term rainwater corrosion, the detachable fixing mechanism is designed to be a detachable structure, so that maintenance personnel can replace the detachable fixing mechanism independently without detaching the guardrail column and detaching and replacing the square embedded plate.

According to the detachable fixing mechanism, in an installation state, the top end face of the round block and the top end face of the square extending block are located on the same horizontal plane, the bottom end of the stud B is located in the rectangular limiting groove, through the design of the oval groove with the appearance similar to a circular structure in the fastening mechanism, the fastening mechanism cannot be rotationally disassembled under the condition that the oval block with the size consistent with the size of the oval groove in the hexagon socket wrench is not matched, and the bottom end of the stud B is located in the rectangular limiting groove, so that the nut cannot be rotationally disassembled along the stud A under the obstruction of the disassembly fastening mechanism, and the nut is prevented from being maliciously disassembled by people.

Drawings

Fig. 1 is a schematic structural diagram in a split state of the present invention.

Fig. 2 is a schematic structural view in an assembled state of the present invention.

Fig. 3 is a schematic top view of the square embedded plate of the invention.

Fig. 4 is a partial sectional structural view of a-a in fig. 3 according to the present invention.

Fig. 5 is a schematic structural view of the fastening screw and the limiting mechanism in fig. 4 in a state of being removed.

Fig. 6 is a schematic view of the fastening screw structure of the present invention.

Fig. 7 is a schematic structural diagram of the limiting mechanism of the present invention.

Fig. 8 is a schematic view of the structure of the guardrail posts of the present invention.

Fig. 9 is a schematic diagram of the square block structure of the present invention.

Fig. 10 is a schematic structural view of the detachable fixing mechanism of the present invention.

Fig. 11 is a schematic sectional view of the detachable fixing mechanism of the present invention.

Fig. 12 is a schematic cross-sectional view of a square extension block of the present invention.

Fig. 13 is a schematic view of the fastening mechanism of the present invention.

Fig. 14 is a partial sectional enlarged structural view of the detachable fixing mechanism portion in an assembled state of the present invention.

Fig. 15 is a schematic structural view of the allen wrench of the present invention.

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

1. a square embedded plate; 101. a circular groove; 102. fastening screws; 10201. a hemispherical bulge; 103. a limiting mechanism; 10301. a circular slider; 10302. a ball bearing; 10303. a columnar limit bolt; 10304. an inclined cut surface; 10305. a return spring; 104. a cylindrical receiving cavity; 105. a circular insertion sliding through hole; 106. a threaded through hole A; 107. a circular receiving groove A; 2. a guardrail post; 201. a square mounting plate; 202. a square notch; 203. a rectangular notch; 3. a square block; 301. a rectangular limiting groove; 302. circular hole sites; 303. a rectangular raised block; 4. a detachable fixing mechanism; 401. a circular block; 402. a circular limiting groove; 403. an arrow mark; 404. a stud A; 405. an inner hexagonal groove; 406. a nut; 407. a square extension block; 408. a fastening mechanism; 40801. a round block; 40802. an elliptical slot; 40803. a stud B; 409. a circular receiving groove B; 4010. a threaded through hole B; 5. an inner hexagonal wrench; 501. a hoisting ring; 502. an oval block.

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 15:

the invention provides a pre-buried connecting piece suitable for auxiliary installation of a bridge guardrail, which comprises: the square embedded plate 1, the square embedded plate 1 and the guardrail column 2 are fixedly installed in a matched manner through four groups of square blocks 3 and four groups of detachable fixing mechanisms 4; an inner hexagonal wrench 5 which is in plug-in fit with the detachable fixing mechanism 4 is arranged; the detachable fixing mechanism 4 comprises a circular block 401, a circular limit groove 402, an arrow mark 403, a stud A404, an inner hexagonal groove 405, a nut 406, a square extension block 407, a circular receiving groove B409 and a threaded through hole B4010, wherein the circular block 401 and the circular groove 101 have the same size, the outer peripheral surface of the circular block 401 is provided with the circular limit groove 402, the top end surface of the circular block 401 is provided with the arrow mark 403, the arrow end of the arrow mark 403 points to the circular limit groove 402, the axial center part of the top end surface of the circular block 401 is fixedly connected with the stud A404, the axial center part of the top end surface of the stud A404 is provided with the inner hexagonal groove 405, the stud A404 is in threaded connection with the nut 406, one side end surface of the nut 406 is provided with the square extension block 407, the bottom end surface of the square extension block 407 and the bottom end surface of the nut 406 are positioned on the same horizontal plane, the central part of, and a threaded through hole B4010 is formed at the axle center part of the bottom end of the inner end of the circular accommodating groove B409.

The square embedded plate 1 comprises a circular groove 101, a cylindrical accommodating cavity 104, a circular inserting sliding through hole 105, a threaded through hole A106 and a circular accommodating groove A107, wherein the included angle part of the edge at the four positions of the top end surface of the square embedded plate 1 is provided with one circular groove 101, the inside of the square embedded plate 1 at one side of the adjacent circular groove 101 is provided with one cylindrical accommodating cavity 104, the cylindrical accommodating cavity 104 is communicated with the circular groove 101 through one circular inserting sliding through hole 105, the top end surface of the square embedded plate 1 is provided with one circular accommodating groove A107 relative to the circular inserting sliding through hole 105, and the axle center part of the bottom surface at the inner end of the circular accommodating groove A107 is communicated with the circular inserting sliding through hole 105 through one threaded through hole A106.

Wherein, the square pre-embedded board 1 comprises a limiting mechanism 103, a round sliding block 10301, a ball 10302, a column-shaped limiting bolt 10303, an inclined section 10304 and a return spring 10305, a group of limiting mechanisms 103 is fixedly connected in the column-shaped receiving cavity 104, the limiting mechanism 103 is composed of the round sliding block 10301, the ball 10302, the column-shaped limiting bolt 10303, the inclined section 10304 and the return spring 10305, the periphery of the round sliding block 10301 is in an annular array shape and is embedded with six balls 10302 in a rotating way, the axle center part of the top end surface of the round sliding block 10301 is fixedly connected with the column-shaped limiting bolt 10303, the periphery of the column-shaped limiting bolt 10303 is in an annular array shape and is provided with two inclined sections 10304, the bottom end surface of the round sliding block 10301 is fixedly connected with the return spring 10305, the round sliding block 10301 slides along the column-shaped receiving cavity 104 through the ball 10302, the, under the ordinary extension state of the return spring 10305, the cylindrical stopper pin 10303 is slidably inserted into the circular insertion slide through hole 105, and an inclined cut surface 10304 of the cylindrical stopper pin 10303 is opposite to the threaded through hole a 106.

The square embedded plate 1 comprises a fastening screw 102 and a hemispherical bulge 10201, the fastening screw 102 is in threaded connection with a threaded through hole A106, and the hemispherical bulge 10201 is arranged at the bottom end of the fastening screw 102.

The guardrail column 2 comprises a square mounting plate 201, square notches 202 and rectangular notches 203, the square mounting plate 201 is arranged on the bottom end face of the guardrail column 2, the square notches 202 are formed in included angles of four edges of the square mounting plate 201, and the rectangular notches 203 are formed in the top end face of the square mounting plate 201 relative to inner end faces of two positions of each square mounting plate 201.

Wherein, square 3 is including the spacing recess of rectangle 301, circular hole site 302, rectangular protruding

piece

303, 3 sizes of square are unanimous with square notch 202 size, 3 top end faces of square have seted up a spacing recess of

rectangle

301, and 3 top end face central points of square have seted up a circular hole site 302, all be provided with a rectangular protruding piece 303 unanimous with rectangle scarce groove 203 size on the adjacent side end face in square 3 two places, and rectangular protruding piece 303 top end face and 3 top end faces of square are in same horizontal plane, under 3 installation status of square, square 3 is located square notch 202, two blocks of rectangular protruding piece 303 are embedded to be installed in two rectangle scarce grooves 203.

Wherein, detachable fixed establishment 4 is including fastening device 408, circle piece 40801, oval groove 40802, double-screw bolt B40803, fastening device 408 constitutes jointly through circle piece 40801, oval groove 40802, double-screw bolt B40803, circle piece 40801 diameter is unanimous with circular recess B409 diameter of accomodating, circle piece 40801 top end face axle center part is seted up the oval groove 40802 that a appearance looks like circular structure, and circle piece 40801 top end face axle center part fixedly connected with a double-screw bolt B40803, double-screw bolt B40803 is connected with screw thread through-hole B4010 screw thread.

When the detachable fixing mechanism 4 is installed, the circular block 401 is located in the circular groove 101, the columnar limiting bolt 10303 is inserted into the circular limiting groove 402, the stud a404 penetrates through the circular hole 302, the bottom end face of the nut 406 is closely attached to the top end face of the square block 3, the top end face of the circular block 40801 and the top end face of the square extending block 407 are located on the same horizontal plane, and the bottom end of the stud B40803 is located in the rectangular limiting groove 301.

The inner hexagonal wrench 5 comprises a hanging ring 501 and an oval block 502, the outer side of the short end of the inner hexagonal wrench 5 is fixedly connected with the hanging ring 501, and the bottom end face of the long end of the inner hexagonal wrench 5 is provided with the oval block 502 which is consistent with the oval groove 40802 in size.

When in use:

when the stud a404 is corroded by long-term rainwater and cannot achieve a corresponding fastening effect with the nut 406, the detachable fixing mechanism 4 is designed to be a detachable structure, so that a maintainer can replace the detachable fixing mechanism 4 independently without detaching the guardrail post 2 and detaching and replacing the embedded plate, and the replacement operation is as follows:

firstly, a maintainer inserts the oval block 502 into the oval groove 40802 to rotate the stud B40803 along the threaded through hole B4010 so as to disassemble the fastening mechanism 408, at this time, the nut 406 can be disassembled along the stud A404 without the obstruction of the fastening mechanism 408, the square block 3 with the limiting function is firstly disassembled without the obstruction of the nut 406, the fastening screw 102 which is covered by the square block is exposed, at this time, the maintainer can twist the fastening screw 102 downwards along the threaded through hole A106 by a tool, because the bottom end of the fastening screw 102 is provided with the hemispherical bulge 10201, the outer periphery of the columnar limiting bolt 10303 is in an annular array shape and is provided with two inclined cutting surfaces 10304, and one inclined cutting surface 10304 of the columnar limiting bolt 10303 is opposite to the threaded through hole A106, when the fastening screw 102 is twisted downwards along the threaded through hole A106, the hemispherical bulge 10201 extrudes the inclined cutting surface 10304 to enable the circular sliding block 10301 to slide along the columnar receiving cavity 104 through the ball 10302, so that the cylindrical limit bolt 10303 is separated from the circular limit groove 402, and the circular block 401 can be taken out from the circular groove 101 under the limit of the cylindrical limit bolt 10303, thereby facilitating the replacement of a new detachable fixing mechanism 4;

the top end face of the circular block 401 is provided with an arrow mark 403, and the arrow mark 403 points to the circular limiting groove 402, so that when a new detachable fixing mechanism 4 is replaced, after the circular block 401 is embedded into the circular groove 101, the circular block 401 can be rotated by matching the internal hexagonal groove 405 with the internal hexagonal wrench 5 to ensure that the arrow mark 403 points to the fastening screw 102, at this time, the fastening screw 102 can be twisted upwards along the threaded through hole a106 by a tool, so that the hemispherical protrusion 10201 does not extrude the inclined cut-off surface 10304 any more, and under the resetting action of the resetting spring 10305, the columnar limiting bolt 10303 is inserted into the circular limiting groove 402 to complete the limiting and fixing operation on the detachable fixing mechanism 4;

when the square block 3 is installed, the square block is limited and fixed in the square notch 202 through the matching of the rectangular convex block 303 and the rectangular notch 203 and the nut 406 which is locked along the screw thread of the stud A404;

further, under the installation state of the detachable fixing mechanism 4, the top end face of the round block 40801 and the top end face of the square extension block 407 are located on the same horizontal plane, the bottom end of the stud B40803 is located in the rectangular limit groove 301, and the outer surface of the stud B40803 is similar to the design of the elliptical groove 40802 of the circular structure, so that the fastening mechanism 408 cannot be rotated and detached under the condition that the elliptical block 502 with the same size as the elliptical groove 40802 in the hexagon socket wrench 5 is not matched, and the bottom end of the stud B40803 is located in the rectangular limit groove 301, so that the nut 406 cannot be twisted along the stud a404 to detach the fastening mechanism 408, and the nut 406 is prevented from being detached maliciously by people.

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. The utility model provides a pre-buried connecting piece suitable for supplementary installation of bridge railing which characterized in that: the guardrail comprises a square embedded plate (1), wherein the square embedded plate (1) and a guardrail column (2) are fixedly installed in a matched mode through four groups of square blocks (3) and four groups of detachable fixing mechanisms (4); an inner hexagonal wrench (5) which is in plug-in fit with the detachable fixing mechanism (4) is arranged; the detachable fixing mechanism (4) comprises a round block (401), a round limiting groove (402), an arrow mark (403), a stud A (404), an inner hexagonal groove (405), a nut (406), a square extending block (407), a round accommodating groove B (409) and a threaded through hole B (4010), wherein the round block (401) is consistent with the round groove (101) in size, the round block (401) is provided with the round limiting groove (402) on the outer peripheral surface, the top end surface of the round block (401) is provided with the arrow mark (403), the arrow end of the arrow mark (403) points to the round limiting groove (402), the axle center part of the top end surface of the round block (401) is fixedly connected with the stud A (404), the axle center part of the top end surface of the stud A (404) is provided with the inner groove (405), and the stud A (404) is in threaded connection with the hexagonal nut (406), and a square extension block (407) is arranged on one side end face of the nut (406), the bottom end face of the square extension block (407) and the bottom end face of the nut (406) are positioned on the same horizontal plane, a circular containing groove B (409) is formed in the center of the top end face of the square extension block (407), and a threaded through hole B (4010) is formed in the axis position of the bottom end of the inner end of the circular containing groove B (409).

2. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the square embedded plate (1) comprises a circular groove (101), a columnar containing cavity (104), a circular splicing sliding through hole (105), a threaded through hole A (106) and a circular containing groove A (107), wherein the included angles of the four edges of the top end surface of the square embedded plate (1) are respectively provided with one circular groove (101), the inside of the square embedded plate (1) at one side of the adjacent circular groove (101) is provided with one columnar containing cavity (104), the columnar containing cavity (104) is communicated with the circular groove (101) through one circular splicing sliding through hole (105), the top end surface of the square embedded plate (1) is provided with one circular containing groove A (107) relative to the circular splicing sliding through hole (105), and the axle center part of the bottom surface of the inner end of the round containing groove A (107) is communicated with the round inserting sliding through hole (105) through a thread through hole A (106).

3. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the square embedded plate (1) comprises a limiting mechanism (103), a round sliding block (10301), rolling balls (10302), a column-shaped limiting bolt (10303), an inclined cutting surface (10304) and a reset spring (10305), wherein a group of limiting mechanisms (103) are fixedly connected in a column-shaped accommodating cavity (104), the limiting mechanism (103) consists of the round sliding block (10301), the rolling balls (10302), the column-shaped limiting bolt (10303), the inclined cutting surface (10304) and the reset spring (10305) together, the periphery of the round sliding block (10301) is in an annular array shape, six rolling balls (10302) are rotatably arranged in an embedded mode, the axis part of the top end surface of the round sliding block (10301) is fixedly connected with the column-shaped limiting bolt (10303), the periphery of the column-shaped limiting bolt (10303) is in an annular array shape, two inclined cutting surfaces (10304) are arranged at the same position, the bottom end surface of the round sliding block, circular sliding block (10301) is through ball (10302) along column containing chamber (104) reciprocating sliding, and reset spring (10305) fixed connection is in column containing chamber (104), and under reset spring (10305) ordinary extended state, the slip grafting of column spacing bolt (10303) is in circular grafting slip through-hole (105), and a slope section (10304) and the screw through-hole A (106) position of column spacing bolt (10303) are relative.

4. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the square embedded plate (1) comprises a fastening screw (102) and hemispherical bulges (10201), the fastening screw (102) is in threaded connection with a threaded through hole A (106), and the hemispherical bulges (10201) are arranged at the bottom end of the fastening screw (102).

5. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the guardrail column (2) comprises a square mounting plate (201), square notches (202) and rectangular grooves (203), the square mounting plate (201) is arranged on the bottom end face of the guardrail column (2), the square mounting plate (201) is provided with one square notch (202) at each edge included angle, and the rectangular grooves (203) are formed in the two inner end face portions of the top end face of the square mounting plate (201) relative to each square mounting plate (201).

6. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the square block (3) comprises a rectangular limiting groove (301), a circular hole (302) and rectangular convex blocks (303), wherein the size of the square block (3) is consistent with that of a square notch (202), the top end face of the square block (3) is provided with one rectangular limiting groove (301), the center part of the top end face of the square block (3) is provided with one circular hole (302), two adjacent side end faces of the square block (3) are respectively provided with one rectangular convex block (303) which is consistent with that of the rectangular notch (203), the top end faces of the rectangular convex blocks (303) and the top end faces of the square block (3) are positioned on the same horizontal plane, the square block (3) is positioned in the square notch (202) in the installation state, and the two rectangular convex blocks (303) are embedded and installed in the two rectangular notches (203).

7. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: detachable fixed establishment (4) is including fastening device (408), circle piece (40801), oval groove (40802), double-screw bolt B (40803), fastening device (408) are via circle piece (40801), oval groove (40802), double-screw bolt B (40803) are constituteed jointly, circle piece (40801) diameter is unanimous with circular recess B (409) diameter of accomodating, oval groove (40802) of a similar circular structure of appearance are seted up to circle piece (40801) top terminal surface axle center position, and circle piece (40801) top terminal surface axle center position fixedly connected with double-screw bolt B (40803), double-screw bolt B (40803) and screw thread through-hole B (4010) threaded connection.

8. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: under detachable fixed establishment (4) installation state, circular piece (401) are located circular recess (101), and peg graft in circular spacing recess (402) column spacing bolt (10303), and circular hole site (302) are passed in double-screw bolt A (404), and nut (406) bottom end face closely pastes with square piece (3) top end face, and circle piece (40801) top end face is in the same horizontal plane with square extension piece (407) top end face, and double-screw bolt B (40803) bottom is located rectangle spacing recess (301).

9. The embedded connecting piece suitable for the auxiliary installation of the bridge guardrail as claimed in claim 1, characterized in that: the inner hexagonal wrench (5) comprises a lifting ring (501) and an oval block (502), the outer side of the short end of the inner hexagonal wrench (5) is fixedly connected with the lifting ring (501), and the bottom end face of the long end of the inner hexagonal wrench (5) is provided with the oval block (502) which is consistent with the oval groove (40802) in size.