CN212927327U - Railing is used in hydraulic engineering construction - Google Patents

Abstract

The utility model relates to a railing for hydraulic engineering construction, which belongs to the technical field of building construction protection devices and comprises a plurality of upright posts, wherein the bottoms of the upright posts are fixedly connected with a base, the base is fixedly connected with the ground, an upper cross beam and a lower cross beam are arranged between adjacent upright posts, the upper cross beam and the lower cross beam are arranged horizontally, rotating parts are arranged between the upper cross beam and the upright posts, a plurality of cylinders are arranged between the upper cross beam and the lower cross beam, each cylinder is arranged vertically, clamping pieces are arranged between the cylinders and the upper cross beam and the lower cross beam, the cylinders comprise an inner post and an outer barrel, the outer barrel is wrapped outside the side wall of the inner post, a plurality of first springs are fixedly arranged between the inner post and the outer barrel, one end of each first spring is fixedly connected with the inner wall of the outer barrel, the other end of each first spring is abutted against the outer wall of the inner, the other end and ground butt, the utility model discloses have the effect that promotes rail guard shock resistance.

Description

Railing is used in hydraulic engineering construction

Technical Field

The utility model belongs to the technical field of water conservancy construction protector's technique and specifically relates to a railing is used in hydraulic engineering construction.

Background

At present, protective guards are generally arranged inside enclosing walls of water conservancy construction sites, and the protective guards play a role in protection and reminding. According to different plans of a construction site, the construction site is encircled into function areas through the guard railings, some function areas enclose and block the site being constructed, and the other function areas enclose and block various construction site equipment, so that engineering danger caused by the fact that non-professional workers mistakenly enter the construction site is avoided, the fact that construction site transport vehicles mistakenly enter the function areas is prevented, and safety of internal equipment of the function areas is protected. The area formed by a plurality of guard rails is provided with a gate for workers to enter and exit.

The current chinese patent that can refer to bulletin number for CN109972907A discloses a construction rail guard is built in room, including a plurality of bracing pieces, be provided with horizontal bar and lower horizontal bar between the adjacent bracing piece, it is provided with the rotation piece to go up between horizontal bar and lower horizontal bar and the bracing piece, it sets up with the equal level of lower horizontal bar to go up the horizontal bar, it is vertical between horizontal bar and the lower horizontal bar to go up a plurality of stands that are provided with, the stand includes first cylinder and second cylinder, first cylinder one end and last horizontal bar bottom fixed connection, the other end is inserted by the second cylinder, first cylinder one end and lower horizontal bar top fixed connection are kept away from to the second cylinder, the bracing piece includes the first body of rod and the second body of rod, first body of rod goes up and down to set up on the second body of rod, be provided with locking Assembly between the first. The device can be in an opening state and a protection state through the rotating piece, so that vehicles and personnel can conveniently enter the device, the overall height of the device is adjusted through the support rod and the stand column in the length direction, and the device is suitable for protection of different height requirements.

The above prior art solutions have the following drawbacks: the bottom of the supporting rod is fixed through the bolt, when the supporting column is impacted by external force, the shearing force in the horizontal direction is completely born by the bolt, so that the bolt is easily pulled up, and the protective guard is inclined. When the stand column is impacted by external force, the stand column is in direct contact with an impact object, and the impact object and the stand column are damaged due to rigid collision of the force, so that the reuse rate of the protective guard is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a railing is used in hydraulic engineering construction reaches the effect that promotes rail guard shock resistance.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a railing is used in hydraulic engineering construction, includes a plurality of stands, stand bottom fixedly connected with base, base and ground fixed connection are provided with entablature and bottom end rail between the adjacent stand, and the equal level of entablature and bottom end rail sets up, all is provided with between entablature and bottom end rail and the stand and rotates the piece, is provided with a plurality of cylinders, every between entablature and the bottom end rail the equal vertical setting of cylinder all is provided with the card inserts between cylinder and entablature and the bottom end rail, the cylinder includes inner prop and urceolus, and the urceolus parcel is on the inner prop outer wall, and fixed a plurality of first springs that are provided with between inner prop and the urceolus, first spring one end and urceolus inner wall fixed connection, the first spring other end and inner prop outer wall butt, every all be provided with the bracing piece on the stand.

By adopting the technical scheme, the upright column, the upper cross beam and the lower cross beam form a basic frame of the protective guard, the arrangement of the column body strengthens the protection of the protective guard and the effect of intercepting objects, the column body consists of the inner column and the outer cylinder, the first spring is further arranged between the inner column and the outer cylinder, the integral impact resistance of the upright column and the protective guard is enhanced, when the objects impact the protective guard, the upright column buffers the impact force through the elasticity of the first spring and the gap between the inner column and the outer cylinder, and the impact force is reduced, so that the impact force on the protective guard is reduced. The arrangement of the clamping insert enables the cylinder to be mounted between the upper cross beam and the lower cross beam more quickly. The arrangement of the rotating part enables the upper cross beam, the lower cross beam and the cylinder body to use the upright post as an axis, so that horizontal rotation is realized, and workers can conveniently enter and exit the area surrounded by the protective fence. The setting of bracing piece makes the bracing piece when using, is the angle slope setting with the stand, and ground, bracing piece and stand constitute triangle-shaped, and triangle-shaped is firm geometric figure, so the setting of bracing piece can effectual promotion come from the impact force in the guardrail outside to the equipment that the inboard guardrail of protection guardrail was maintained.

The utility model discloses further set up to: the clamping and embedding piece comprises a first convex block, a first groove, a second convex block and a second groove, the first convex block is fixedly arranged at the bottom of the inner column, the first groove is formed in the top of the inner column, the second convex block is fixedly arranged at the bottom of the upper cross beam, the second groove is formed in the top of the lower cross beam, the first convex block is inserted and embedded in the second groove, and the second convex block is inserted and embedded in the first groove.

Through adopting above-mentioned technical scheme, first lug is inserted and is inlayed in the second recess, accomplishes the relatively fixed of cylinder bottom and bottom end rail, inserts the second lug and inlays in first recess, accomplishes the relatively fixed of cylinder top and entablature, inserts the fixed mode of inlaying, is that the staff assembles convenient and fast to this device.

The utility model discloses further set up to: the stand includes upper portion stand and lower part stand, and upper portion stand one end is inserted and is inlayed in the stand of lower part, and the upper portion stand is close to lower part stand one end and has seted up the fixed orifices, and the lower part stand is close to upper portion stand one end and has seted up a plurality of roll adjustment holes, and the roll adjustment hole is seted up along lower part stand length direction equidistance, is provided with first bolt on the stand of lower part, and first bolt passes arbitrary roll adjustment hole and fixed orifices threaded connection.

Through adopting above-mentioned technical scheme, adjust the relative position of upper portion stand and lower part stand, through the fixed orifices, the fixed of roll adjustment hole and first bolt, accomplish the regulation of the whole effective length of stand, make the stand can height-adjusting, thereby adapt to the demand of different protection height, make the application scope of this device wider, the mode that inlays is inserted to height-adjustable's stand cooperation cylinder self simultaneously, first lug on the cylinder inserts in the first recess on another cylinder promptly, make two cylinders become one, after the increase of cooperation stand, the condition of entablature and bottom end rail interval grow.

The utility model discloses further set up to: the stand column is provided with a containing groove, the containing groove is formed in the length direction of the stand column, a fixing shaft is fixedly arranged on the lower portion of the containing groove, one end of a supporting rod is rotatably connected with the fixing shaft, and the length of the supporting rod is smaller than that of the containing groove.

Through adopting above-mentioned technical scheme, when the bracing piece does not use, use the fixed axle to rotate to the holding tank direction as the axle center and pack up, the holding tank can hold the bracing piece completely, makes the bracing piece can be hidden when not using, does not influence the transportation of this device.

The utility model discloses further set up to: holding tank upper portion is provided with the fastener, and the fastener includes dop, kelly, cassette, pull ring and bearing, and the kelly level sets up, rotates between kelly one end and the cassette and is provided with the bearing, and the kelly other end is fixed and is provided with the dop, and the dop is rectangular form, and the dop is kept away from a kelly side and is fixed and be provided with the pull ring, and the dop is the vertical state with the kelly, rectangular through-hole has been seted up on the bracing piece, and fixed axle one end is kept away from at the bracing.

Through adopting above-mentioned technical scheme, when the bracing piece does not use, accomodate completely by the holding tank, make the dop pass rectangular through-hole when accomodating, after passing rectangular through-hole, because the existence of bearing, rotate the bracelet and make dop and rectangular through-hole length direction perpendicular, accomplish the limiting displacement to the bracing piece, make the bracing piece can not fall back.

The utility model discloses further set up to: set up the circular slot in the holding tank, the circular slot is located the holding tank and is close to a cassette lateral wall department, and circular slot horizontal axis is in same water flat line with kelly horizontal axis, and circular slot length direction is perpendicular with place holding tank lateral wall, is provided with the second spring in the circular slot, second spring one end and circular slot bottom fixed connection, and the other end is close to one side fixed connection of circular slot with the cassette.

Through adopting above-mentioned technical scheme, the circular slot provides the setting space for the second spring, and the setting of second spring makes the fastener accomplish the spacing back to the bracing piece, draws the second spring by tensile, so the fastener keeps the tight power of stretching that resets constantly, has guaranteed in this device transportation way, can not make the dop pass rectangular through-hole and leave the bracing piece because of jolting, makes the dop more obvious to the spacing effect of bracing piece.

The utility model discloses further set up to: the rotating piece comprises a shaft collar, a shaft hole and a limiting pin, the shaft hole is formed in the end portions, close to the stand column, of the upper cross beam and the lower cross beam, the shaft collar is fixedly arranged at the end portions, close to the upper cross beam and the lower cross beam, of the stand column, and the limiting pin penetrates through the shaft hole and is inserted into the shaft collar.

Through adopting above-mentioned technical scheme, the setting in axle collar and shaft hole is simply understandable, and the operating means of spacer pin is simple swift, and the three cooperation is used and has been realized that entablature and bottom end rail use the stand to be the rotation of axle, the region that this device of staff's business turn over of being convenient for encloses.

The utility model discloses further set up to: one end, far away from the fixed shaft, of the support rod is hinged to a fixed plate, and a second bolt is connected to the fixed plate in a threaded mode.

Through adopting above-mentioned technical scheme, the articulated mode of stationary blade is convenient for comply with accomodating of bracing piece. The setting of stationary blade makes the bracing piece produce the strong point, can more effectual implementation supporting effect.

To sum up, the utility model discloses a beneficial technological effect does:

1. the inner column, the outer cylinder and the first spring are arranged, so that when the column body is impacted, the impact force can be relieved through the spring, and the impact resistance of the device is enhanced;

2. the ground, the supporting rods and the upright posts form a triangle, and the triangle is a stable geometric body, so that the shock resistance of the device is enhanced by the supporting rods.

Drawings

Fig. 1 is a schematic view of the whole structure of the rail for hydraulic engineering construction of the present invention;

fig. 2 is a schematic view of the utility model of a use state of the railing for hydraulic engineering construction;

fig. 3 is a cross-sectional view of the utility model of a railing for hydraulic engineering construction;

fig. 4 is a sectional view of a partial structure of a column body of the handrail for hydraulic engineering construction of the utility model;

fig. 5 is a sectional view of a column structure of the handrail for hydraulic engineering construction of the present invention;

fig. 6 is an enlarged view of a portion a of fig. 5.

In the figure, 1, a column; 11. an upper column; 111. a fixing hole; 12. a lower column; 121. distance adjusting holes; 122. a first bolt; 123. a base; 2. an upper cross beam; 3. a lower cross beam; 4. a cylinder; 41. an inner column; 42. an outer cylinder; 43. a first spring; 5. a card insert; 51. a first bump; 52. a first groove; 53. a second bump; 54. a second groove; 6. a support bar; 61. a fixing sheet; 62. a second bolt; 63. a strip through hole; 7. accommodating grooves; 71. a fixed shaft; 72. a circular groove; 73. a second spring; 8. a fastener; 81. a chuck head 82 and a clamping rod; 83. a card holder; 84. a bearing; 85. a pull ring; 9. a rotating member; 91. a collar; 92. a shaft hole; 93. and a limiting pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, do the utility model discloses a railing is used in hydraulic engineering construction, including a plurality of stands 1, only draw two as the schematic in the picture. The equal vertical setting of stand 1 is provided with entablature 2 and bottom end rail 3 between two adjacent stands 1, entablature 2 and the equal level setting of bottom end rail 3, be provided with a plurality of cylinders 4 between entablature 2 and the bottom end rail 3, the equal vertical setting of cylinder 4, stand 1 is fixed subaerial, stand 1, entablature 2, a unit of protection enclosure is constituteed to bottom end rail 3 and cylinder 4, complete protection enclosure is constituteed to a plurality of unit, the maintenance effect to special function district in the building site has been played.

Referring to fig. 2 and 3, the column 1 is integrally cylindrical, the column 1 includes an upper column 11 and a lower column 12, a base 123 is fixedly connected to the bottom of the lower column 12, the base 123 is fixedly connected to the ground, one end of the lower column 12, which is far away from the base 123, is inserted into the upper column 11, and a plurality of distance adjusting holes 121 are formed in the inserted end of the lower column 12, which is inserted into the upper column 11. One end of the upper upright post 11 inserted into the lower upright post 12 is provided with a fixing hole 111, the lower upright post 12 is provided with a first bolt 122, and the first bolt 122 penetrates through any distance adjusting hole 121 to be in threaded connection with the fixing hole 111, so that the relative fixation of the upper upright post 11 and the lower upright post 12 is completed. All be provided with between entablature 2 and bottom end rail 3 and the stand 1 and rotate piece 9, rotate piece 9 and include axle collar 91, shaft hole 92 and spacer pin 93. The collar 91 is circular, the collar 91 is fixed with the upright post 1, the shaft holes 92 are formed in the end parts, close to the upright post 1, of the upper cross beam 2 and the lower cross beam 3, and the limiting pin 93 is inserted into the collar 91 through the shaft holes 92 to complete the relative fixation of the upper cross beam 2 and the lower cross beam 3 to the upright post 1 respectively. The opening state of the device is realized by taking out the limiting pin 93 of the upper beam 2 and the lower beam 3 at the same side, and the working personnel can conveniently surround the protective enclosing wall through the device at any time.

Referring to fig. 3 and 4, the columns 4 are uniformly arranged between the upper cross beam 2 and the lower cross beam 3 along the length direction of the upper cross beam 2 and the lower cross beam 3, and the columns 4 are perpendicular to the upper cross beam 2 and the lower cross beam 3. Cylinder 4 is cylindric, and cylinder 4 includes interior post 41 and urceolus 42, and urceolus 42 parcel lives interior post 41 outer wall, and interior post 41 is solid post, is provided with a plurality of first springs 43 between urceolus 42 and the interior post 41, first spring 43 one end and urceolus 42 inner wall fixed connection, and the first spring 43 other end and the 41 outer wall butt of interior post make things convenient for the staff to accomplish the equipment. The presence of the first spring 43 provides a cushioning effect when the column 4 is impacted by a foreign object, and therefore the outer cylinder 42 is preferably made of an elastic material, and the outer cylinder 42 made of an elastic rubber material may be used. Be provided with card inserts 5 between cylinder 4 and entablature 2 and the bottom end rail 3, be convenient for cylinder 4 and entablature 2 and bottom end rail 3 swift installation. The card insert 5 includes a first projection 51, a first groove 52, a second projection 53, and a second groove 54. The first lugs 51 are fixedly arranged at the bottom of each inner column 41, the second grooves 54 are formed in the top of the lower cross beam 3, the second grooves 54 are formed at equal intervals along the length direction of the lower cross beam 3 corresponding to the fixing positions of the columns 4, and the first lugs 51 are inserted into the second grooves 54; first recess 52 is seted up at every interior post 41 top, and second lug 53 is fixed to be set up in entablature 2 bottom, and second lug 53 corresponds post 4 fixed position and sets up along entablature 2 length direction equidistance, and second lug 53 inserts and inlays inside first recess 52.

Referring to fig. 5 and 6, holding tank 7 has been seted up on stand 1, holding tank 7 is located lower part stand 121, holding tank 7 is rectangular rectangle form, holding tank 7 internal fixation is provided with fixed axle 71, fixed axle 71 is located holding tank 7 lower part, be provided with bracing piece 6 on the fixed axle 71, bracing piece 6 one end rotates with fixed axle 71 and sets up, the bracing piece 6 other end articulates there is stationary blade 61, stationary blade 61 threaded connection has second bolt 62, bracing piece 6 is accomodate by holding tank 7 completely when not using. Be provided with fastener 8 in the holding tank 7, fastener 8 includes dop 81, kelly 82, cassette 83, bearing 84 and pull ring 85, 7 one end rotation connection bearing 84 is kept away from to cassette 83, the bearing 84 other end rotates and is connected with kelly 82, kelly 82 keeps away from the fixed dop 81 that is provided with of bearing 84 one end, dop 81 and kelly 82 all are cylindricly, dop 81 is vertical state fixed with kelly 82, fixed pull ring 85 that is provided with in one side of kelly 82 is kept away from to dop 81. A circular groove 72 is formed in the accommodating groove 7, the circular groove 72 is located at a position corresponding to the fixing position of the clamping seat 83, a second spring 73 is arranged in the circular groove 72, one end of the second spring 73 is fixedly connected with the inside of the circular groove 72, the other end of the second spring is fixedly connected with one side face of the clamping seat 83, and the size of the clamping seat 83 is the same as that of the circular groove 72 in the embodiment. The supporting rod 6 is provided with a strip-shaped through hole 63, the length direction of the strip-shaped through hole 63 is along the length direction of the supporting rod 6, and the length of the strip-shaped through hole 63 is larger than that of the clamping head 81. When the supporting rod 6 withdraws the accommodating groove 7, the clamping head 81 and the clamping ring penetrate through the strip-shaped through hole 63, the clamping piece 8 is pulled outwards to stretch the second spring 73, the clamping head 81 is rotated to enable the clamping head 81 to be staggered with the strip-shaped through hole 63, the fastening limiting effect of the clamping piece 8 on the supporting rod 6 is achieved, and the plane where the supporting rod 6 and the accommodating groove 7 are located is perpendicular to the plane where the upper cross beam 2 and the lower cross beam 3 are located.

The implementation principle of the embodiment is as follows: fixing the base 123 of the upright post 1 in an area needing to be fixed, stretching the pull ring 85 outwards, rotating the chuck 81 to enable the chuck 81 to coincide with the strip through hole 63, loosening the limit of the support rod 6, putting down the support rod 6 to enable the support rod 6, the ground and the upright post 1 to form a triangular state, and enabling the fixing sheet 61 and the ground to complete thread fixing through the second bolt 62. The lower cross beam 3 is fixed between the adjacent upright posts 1 through the rotating part 9, the upper posts 4 are inserted and embedded on the lower cross beam 3 corresponding to the second grooves 54, the second lugs 53 of the upper cross beam 2 are aligned with the first grooves 52 of the posts 4, and the fixing of the upper cross beam 2 and the upright posts 1 is completed through the rotating part 9. According to the engineering requirements, if the height of the protective enclosing wall formed by the utility model needs to be increased, the relative positions of the upper upright post 11 and the lower upright post 12 are adjusted through the distance adjusting hole 121, the limiting hole and the first bolt 122, so as to adjust the overall effective height of the upright post 1; when the upright post 1 is heightened, the superposition of the upright post 1 is completed on the original post 4 through the first groove 52 and the first bump 51 of the post 4, namely the height of the upright post 1 is adjusted to be the same as the heightened height of the post 4. The size of the first recess 52 and the first protrusion 51 is determined by considering the impact resistance of the pillar 1 when the first recess 52 and the first protrusion 51 are stacked on itself, and the first recess 52 and the first protrusion 51 are only illustrated in the figure and are manufactured according to practical situations. The utility model discloses wholly accomplish fixed back, accessible dismantlement entablature 2 and bottom end rail 3 are with the spacer pin 93 of one side, and entablature 2 and bottom end rail 3 even take cylinder 4, use one side of spacer pin 93 to begin to rotate as the axle together, reach the utility model discloses the state of opening, the staff's of being convenient for business turn over. When not using the utility model discloses the time, opposite with the installation operation, accomplish the utility model discloses a dismantlement reaches the utility model discloses a repetitious utilization.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all the equivalent changes made according to the structure, shape and distance of the utility model should be covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a railing is used in hydraulic engineering construction, includes a plurality of stands (1), stand (1) bottom fixedly connected with base (123), base (123) and ground fixed connection are provided with entablature (2) and bottom end rail (3) between adjacent stand (1), and entablature (2) and the equal level setting of bottom end rail (3) all are provided with between entablature (2) and bottom end rail (3) and stand (1) and rotate piece (9), its characterized in that: be provided with a plurality of cylinders (4), every between entablature (2) and bottom end rail (3) cylinder (4) equal vertical setting all is provided with card inserts (5) between cylinder (4) and entablature (2) and bottom end rail (3), cylinder (4) are including inner prop (41) and urceolus (42), and urceolus (42) parcel is on inner prop (41) outer wall, and fixed a plurality of first spring (43) of being provided with between inner prop (41) and urceolus (42), first spring (43) one end and urceolus (42) inner wall fixed connection, the first spring (43) other end and inner prop (41) outer wall butt, every all be provided with bracing piece (6) on stand (1), bracing piece (6) one end rotates with stand (1) to be connected, the other end and ground butt.

2. The railing of claim 1 for hydraulic engineering construction, characterized in that: the clamping and inserting piece (5) comprises a first convex block (51), a first groove (52), a second convex block (53) and a second groove (54), the first convex block (51) is fixedly arranged at the bottom of the inner column (41), the first groove (52) is formed in the top of the inner column (41), the second convex block (53) is fixedly arranged at the bottom of the upper cross beam (2), the second groove (54) is formed in the top of the lower cross beam (3), the first convex block (51) is inserted into the second groove (54), and the second convex block (53) is inserted into the first groove (52).

3. The railing of claim 1 for hydraulic engineering construction, characterized in that: stand (1) includes upper portion stand (11) and lower part stand (12), and inlay in lower part stand (12) is inserted to upper portion stand (11) one end, and fixed orifices (111) have been seted up to upper portion stand (11) near lower part stand (12) one end, and a plurality of roll adjustment holes (121) have been seted up to lower part stand (12) near upper portion stand (11) one end, and the equidistance of length direction is seted up along lower part stand (12) in roll adjustment hole (121), is provided with first bolt (122) on lower part stand (12), and first bolt (122) pass arbitrary roll adjustment hole (121) and fixed orifices (111) threaded connection.

4. The railing of claim 1 for hydraulic engineering construction, characterized in that: the vertical column is characterized in that the vertical column (1) is provided with an accommodating groove (7), the accommodating groove (7) is formed in the length direction along the length direction of the vertical column (1), a fixed shaft (71) is fixedly arranged at the lower part of the accommodating groove (7), one end of the supporting rod (6) is rotatably connected with the fixed shaft (71), and the length of the supporting rod (6) is smaller than that of the accommodating groove (7).

5. The railing of claim 4 for hydraulic engineering construction, characterized in that: holding tank (7) upper portion is provided with fastener (8), fastener (8) are including dop (81), kelly (82), cassette (83), pull ring (85) and bearing (84), kelly (82) level sets up, it is provided with bearing (84) to rotate between kelly (82) one end and cassette (83), kelly (82) other end is fixed and is provided with dop (81), dop (81) are rectangular form, and dop (81) are kept away from fixed pull ring (85) that is provided with in kelly (82) a side, and dop (81) are the vertical state with kelly (82), rectangular through-hole (63) have been seted up on bracing piece (6), and fixed axle (71) one end is kept away from in bracing piece (6) is seted up in rectangular through-hole (63), and rectangular through-hole (63) length is greater than dop.

6. The railing of claim 5 for hydraulic engineering construction, characterized in that: circular slot (72) have been seted up in holding tank (7), circular slot (72) are located holding tank (7) and are close to a lateral wall department of cassette (83), and circular slot (72) horizontal axis is in same horizontal line with kelly (82) horizontal axis, and circular slot (72) length direction is perpendicular with place holding tank (7) lateral wall, is provided with second spring (73) in circular slot (72), and second spring (73) one end and circular slot (72) bottom fixed connection, the other end is close to circular slot (72) one side fixed connection with cassette (83).

7. The railing of claim 1 for hydraulic engineering construction, characterized in that: the rotating piece (9) comprises a shaft ring (91), a shaft hole (92) and a limiting pin (93), the shaft hole (92) is formed in the end portion, close to the upright post (1), of the upper cross beam (2) and the lower cross beam (3), the shaft ring (91) is fixedly arranged at the end portion, close to the upper cross beam (2) and the lower cross beam (3), of the upright post (1), and the limiting pin (93) penetrates through the shaft hole (92) to be inserted into the shaft ring (91).

8. The railing of claim 1 for hydraulic engineering construction, characterized in that: one end, far away from the fixed shaft (71), of the support rod (6) is hinged to a fixing plate (61), and a second bolt (62) is connected to the fixing plate (61) in a threaded mode.

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