CN211646469U - Concrete prefabricated part for comprehensive pipe gallery - Google Patents

Abstract

The utility model relates to a utility tunnel concrete prefabricated component belongs to municipal facilities technical field, including the prefabricated component body, the prefabricated component body includes two curb plates that are parallel to each other and the interval sets up, be provided with bottom plate and roof between the curb plate of both sides, bottom plate, curb plate and roof all are hollow settings, a plurality of pouring holes have all been seted up on the face that the curb plate of both sides is relative and on the face that bottom plate and roof are relative, all be provided with the connecting rod on the curb plate of both sides, the tip of connecting rod is provided with the bracing piece, the tip of bracing piece is provided with the universal wheel, the connecting rod can be dismantled and be connected to the curb plate, the setting up of universal wheel makes things convenient for operating personnel to promote whole prefabricated component body to move on ground, thereby conveniently adjust the position of each prefabricated component body, saved the manpower; all set up curb plate, bottom plate and roof into hollow, reduced the weight of whole prefabricated component body to the manpower has further been saved.

Description

Concrete prefabricated part for comprehensive pipe gallery

Technical Field

The utility model belongs to the technical field of the municipal facilities technique and specifically relates to a utility tunnel concrete prefabricated component is related to.

Background

The utility tunnel is the underground city pipeline utility tunnel. The tunnel space is built in the city underground, various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated, a special overhaul port, a lifting port and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the tunnel space is an important infrastructure and a 'life line' for guaranteeing city operation.

Chinese patent with the publication number of grant CN209260763U discloses a utility tunnel concrete prefabricated component, including the prefabricated component body that is used for splicing the utility tunnel, its characterized in that: the two end faces of the prefabricated part body are provided with grooves for pouring concrete, the inner wall of the prefabricated part body is provided with pouring holes, and the pouring holes are communicated with the grooves.

The above prior art solutions have the following drawbacks: the weight of whole prefabricated component body is heavier, need use the crane to hoist when the transportation, when assembling a plurality of prefabricated component bodies, needs the artifical prefabricated component body that promotes the crane hoist and mount to remove, but the weight of prefabricated component body is heavier, adopts the artifical mode of promoting to adjust prefabricated component body position, has wasted the manpower, and is inconvenient to adjust the position of prefabricated component body.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a utility tunnel concrete prefabricated component convenient to adjust every prefabricated component body position.

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

the utility model provides a utility tunnel concrete prefabricated component, includes the prefabricated component body, the prefabricated component body includes two curb plates that are parallel to each other and the interval sets up, both sides bottom and upper portion that just is located the curb plate between the curb plate are provided with bottom plate and roof respectively, bottom plate, curb plate and roof all are hollow setting, both sides a plurality of holes of pouring have all been seted up on the face that the curb plate is relative and on the face that bottom plate and roof are relative, both sides just the both sides that are located the curb plate on the face that the curb plate deviates from mutually all are provided with the connecting rod, the tip perpendicular to connecting rod that the curb plate was kept away from to the connecting rod is provided with the bracing piece, the tip that the connecting rod was kept away from to the bracing.

By adopting the technical scheme, the arrangement of the universal wheels is convenient for an operator to push the whole prefabricated part body to move on the ground, so that the position of each prefabricated part body is convenient to adjust, the labor is saved, and the plurality of prefabricated part bodies are convenient to splice; all set up curb plate, bottom plate and roof into hollow, reduced the weight of whole prefabricated component body to further conveniently promote the prefabricated component body and remove on the ground, further saved the manpower.

The present invention may be further configured in a preferred embodiment as: the connecting rod is close to the tip perpendicular to connecting rod of curb plate and is provided with the butt board, the butt board is used for the face butt that deviates from with both sides curb plate, the perpendicular to butt board is provided with the slide bar on the face that the butt board kept away from the connecting rod, the slide bar is used for wearing to establish and sliding connection on the curb plate, the tip that the butt board was kept away from to the slide bar is provided with and is used for fixing the first mounting to the curb plate on with the slide bar.

Through adopting above-mentioned technical scheme, with the butt board move the slide bar wear to establish to the curb plate on, can be fixed the slide bar to the curb plate through first mounting on to make the connecting rod drive the universal wheel fixed to with the state of ground butt, make the connecting rod can dismantle and be connected to on the curb plate, adjust to the assigned position after the prefabricated component body, take off the connecting rod drive the universal wheel, conveniently install the connecting rod and use to other curb plates, improved the result of use of connecting rod and universal wheel.

The present invention may be further configured in a preferred embodiment as: the first fixing piece comprises a sleeve which is sleeved on the sliding rod and is connected to the sliding rod in a sliding mode, the sleeve comprises two arc-shaped cylinders which are mutually spliced, notches of the arc-shaped cylinders are oppositely arranged, a plurality of first springs are arranged between edges of two sides of each arc-shaped cylinder, and two ends of each first spring are connected to the edges of the arc-shaped cylinders on two sides respectively.

Through adopting above-mentioned technical scheme, when needs are fixed the slide bar to the curb plate on, keep away from each other through driving two arc section of thick bamboo, make first spring by pulling to tensile state, establish two arc section of thick bamboo covers on the slide bar this moment, make two arc section of thick bamboo resist the elasticity butt joint of first spring to the slide bar on, make the sleeve rely on and slide bar between the frictional force fixed to the sleeve on, thereby prevent to break away from between slide bar and the curb plate, establish on the slide bar through driving two arc section of thick bamboo covers and can accomplish the fixed to the slide bar, fixed mode is convenient simple, operating personnel's installation and dismantlement efficiency have been improved.

The present invention may be further configured in a preferred embodiment as: all be provided with the fixed block on the face that two arc section of thick bamboo is relative, a plurality of cell bodies have been seted up along the length direction of slide bar on the slide bar, every the cell body all sets up along the hoop on the slide bar, the cell body is used for supplying the fixed block immigration simultaneously in two arc sections of thick bamboo.

By adopting the technical scheme, the two arc-shaped cylinders can resist the elasticity of the first spring to drive the fixing block to be inserted into the groove body, so that the fixing block and the groove body have a stopping effect on the movement of the sleeve along the length direction of the sliding rod, the fixing effect of the sleeve on the sliding rod is further improved, and the sliding rod is further prevented from being separated from the side plate; the arrangement of the plurality of groove bodies can enable the connecting rod to be fixed to the side plates with different thicknesses, and the using effect of the sliding rod is improved.

The present invention may be further configured in a preferred embodiment as: the connecting rod is kept away from the tip of curb plate and has been seted up the opening, the bracing piece wear to establish and sliding connection in the opening, be provided with on the connecting rod and be used for fixing the bracing piece to the second mounting of arbitrary position on the connecting rod.

Through adopting above-mentioned technical scheme, after the prefabricated component body removes to the assigned position, drive the bracing piece through the second mounting and fix to the connecting rod for the bracing piece drives the universal wheel and breaks away from the butt relation with ground, drives the prefabricated component body and removes on ground after preventing to adjust the position of prefabricated component body, and when installing the universal wheel, can be at first fixed to the curb plate with the connecting rod on, adjusts the universal wheel butt to subaerial again, the convenient position control to the universal wheel.

The present invention may be further configured in a preferred embodiment as: the edge of the opening, which is far away from the connecting rod, is provided with a sliding groove, the supporting rod is provided with a sliding strip which is connected to the sliding groove in a sliding mode, and the sliding strip is arranged along the length direction of the supporting rod.

Through adopting above-mentioned technical scheme, the setting of spout and draw runner can play the effect of direction to the removal of bracing piece in the opening, prevents that the bracing piece from inclining when removing in the opening to prevent that the bracing piece from driving the gyro wheel slope, improved the butt effect of gyro wheel with ground.

The present invention may be further configured in a preferred embodiment as: the fixed plate is fixedly arranged on the connecting rod and located close to the opening, the second fixing piece comprises a second spring, one end of the second spring is connected to the surface, facing the supporting rod, of the fixed plate, a plate body is arranged at the end, far away from the fixed plate, of the second spring, a plurality of fixing holes are formed in the surface, facing the sliding strip, of the supporting rod in the length direction of the supporting rod, and an inserting rod used for being inserted into any one fixing hole is arranged on the surface, facing the supporting rod, of the plate body.

Through adopting above-mentioned technical scheme, when the position of bracing piece needs to be adjusted, the elasticity plate body through resisting the second spring removes, make the second spring by pulling to compression state, it breaks away from with the fixed orifices to drive the peg graft on the plate body, drive the bracing piece and remove in the opening this moment, after adjusting to the assigned position, loosen the plate body, the plate body can resist the elasticity of second spring and drive the peg graft to the fixed orifices in, make peg graft and fixed orifices play the effect of prevention to the removal of bracing piece, thereby make the bracing piece fixed to the connecting rod on, it can accomplish the fixed to the bracing piece to drive the plate body through the elasticity of resisting the second spring and remove, fixed mode is convenient simple.

The present invention may be further configured in a preferred embodiment as: be provided with the guide bar between plate body and the fixed plate, the one end of guide bar is connected to on the plate body, and the other end wears to establish and sliding connection on the fixed plate, the second spring housing is located on the guide bar.

Through adopting above-mentioned technical scheme, the effect of direction can be played in the extension and the compression of second spring to the setting of guide bar, prevents that the second spring from inclining when extension and compression to prevent that the second spring from driving the slope of grafting pole, make that the grafting pole can be better relative with the fixed orifices, indirectly improved the fixed effect to the bracing piece.

The present invention may be further configured in a preferred embodiment as: the both sides just be located the position of roof and bottom plate on the face that the curb plate is relative and all seted up the spread groove, the both sides edge of roof and bottom plate is provided with sliding connection in the connecting strip in the spread groove.

Through adopting above-mentioned technical scheme, the setting up of spread groove and connecting strip can make the prefabricated component body form by bottom plate, roof and curb plate concatenation to conveniently unpack whole prefabricated component body apart and transport, and conveniently remove bottom plate, roof and curb plate to the position that needs the concatenation and splice fixedly.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the connecting rod drives the sliding rod on the abutting plate to penetrate through the side plate, the two arc-shaped cylinders are driven to be away from each other, the two arc-shaped cylinders resist the elastic force of the first spring and are sleeved on the sliding rod, the fixed block in the arc-shaped cylinders is driven to move into the groove body, so that the connecting rod is fixed to the side plate, the connecting rod can drive the universal wheels on the supporting rod to abut to the ground, manpower is saved, the prefabricated part bodies are convenient to transport, and the plurality of prefabricated part bodies are convenient to splice and fix;

2. the elasticity through resisting the second spring drives the inserted bar and shifts out the fixed orifices, drive the bracing piece this moment and remove in the opening, adjust the position of universal wheel on the bracing piece, after the universal wheel is adjusted to the assigned position, the plate body can resist the elasticity of second spring and drive the inserted bar plug-in connection to in the fixed orifices, make the bracing piece fixed, conveniently drive the universal wheel and break away from with ground behind prefabricated component body adjusting position, and when the convenience drove the prefabricated component body and remove in needs, adjust the universal wheel to the state with the ground butt.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic view showing the structure of a connecting rod and a supporting rod;

fig. 3 is a schematic view of an exploded structure for showing the slide groove, the insertion rod and the fixing block.

In the figure, 1, side plate; 11. a base plate; 111. a top plate; 112. connecting grooves; 113. a connecting strip; 114. pouring holes; 12. a connecting rod; 121. a support bar; 122. a universal wheel; 123. a butt joint plate; 124. a slide bar; 125. a trough body; 13. a sleeve; 131. an arc-shaped cylinder; 132. a first spring; 133. a fixed block; 14. an opening; 141. a chute; 142. a slide bar; 15. a fixing plate; 151. a second spring; 152. a plate body; 153. a fixing hole; 154. a plug rod; 155. a guide rod.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a utility tunnel concrete prefabricated component, including the prefabricated component body, the prefabricated component body includes two curb plates 1 that are parallel to each other and the interval sets up, and the bottom and the upper portion that just are located curb plate 1 between the curb plate 1 of both sides are provided with bottom plate 11 and roof 111 respectively.

As shown in fig. 1, in order to detachably connect the bottom plate 11 and the top plate 111 to the side plates 1, so as to facilitate the detachment and transportation of the whole prefabricated part body, connecting grooves 112 are respectively formed on the opposite surfaces of the side plates 1 on the two sides and at the positions of the top plate 111 and the bottom plate 11, two ends of the connecting grooves 112 penetrate through the side plates 1, and connecting strips 113 slidably connected in the connecting grooves 112 are arranged on the edges of the two sides of the top plate 111 and the bottom plate 11.

As shown in fig. 1, in order to prevent the coupling bar 113 from being separated from the coupling groove 112 in a direction perpendicular to the length direction of the coupling groove 112, the cross section of the coupling groove 112 is formed in a dovetail shape, and the coupling bar 113 is formed as a dovetail block to be engaged with the coupling groove 112 in the dovetail shape.

As shown in fig. 1, in order to reduce the weight of the whole prefabricated part body, the bottom plate 11, the side plates 1 and the top plate 111 are all arranged in a hollow manner, and a plurality of pouring holes 114 are formed in the opposite surfaces of the side plates 1 on the two sides and the opposite surfaces of the bottom plate 11 and the top plate 111.

With reference to fig. 1 and 2, in order to facilitate transportation of the prefabricated part body, the connecting rods 12 are disposed on the surfaces of the side plates 1 on the two sides, which face away from each other, and on the two sides of the side plates 1, the end portion of the connecting rod 12, which is far away from the side plates 1, is perpendicular to the connecting rod 12, and a support rod 121 is disposed on the end portion of the support rod 121, which is far away from the connecting rod 12, is.

With reference to fig. 1 and fig. 2, in order to detachably connect the connecting rod 12 to the side plate 1, an abutting plate 123 is disposed at the end portion of the connecting rod 12 close to the side plate 1 and perpendicular to the connecting rod 12, the abutting plate 123 is used for abutting against the surface deviating from the side plate 1 on both sides, a sliding rod 124 is disposed at the surface deviating from the connecting rod 12 and perpendicular to the abutting plate 123, the sliding rod 124 is used for penetrating and slidably connecting to the side plate 1, a sleeve 13 is sleeved on the sliding rod 124 and slidably connected to the sliding rod 124, the sleeve 13 includes two arc cylinders 131 formed by mutually splicing, notches of the two arc cylinders 131 are disposed relatively, a plurality of first springs 132 are disposed between the edges of both sides of the two arc cylinders 131, and both ends of the first springs 132 are connected to the edges of the arc cylinders 131.

When the connecting rod 12 needs to be fixed to the side plate 1, the sliding rod 124 is driven to penetrate through the side plate 1, the abutting plate 123 is driven to abut against the side plate 1, the two arc-shaped cylinders 131 are driven to be away from each other at the moment, the first spring 132 is pulled to be in a stretching state, the two arc-shaped cylinders 131 are sleeved on the sliding rod 124, the two arc-shaped cylinders 131 can resist the elastic force of the first spring 132 to abut against the sliding rod 124, the sleeve 13 is fixed to the sliding rod 124 by means of the friction force between the sleeve 13 and the sliding rod 124, the side plate 1 is fixed between the abutting plate 123 and the sleeve 13, the fixing mode is convenient and simple, when the sleeve 13 needs to be taken down on the sliding rod 124, the two arc-shaped cylinders 131 resist the elastic force of the first spring 132 to be taken down on the sliding rod 124, and the sliding rod 124 can slide out of the side plate 1.

With reference to fig. 2 and 3, in order to prevent the sleeve 13 from moving on the sliding rod 124 due to insufficient friction force, fixing blocks 133 are respectively disposed on the opposite surfaces of the two arc-shaped cylinders 131, a plurality of groove bodies 125 are disposed on the sliding rod 124 along the length direction of the sliding rod 124, each groove body 125 is circumferentially disposed on the sliding rod 124, and the groove bodies 125 are used for allowing the fixing blocks 133 in the two arc-shaped cylinders 131 to move in at the same time; the groove 125 and the fixing block 133 may prevent the sleeve 13 from moving along the length direction of the sliding rod 124, thereby improving the fixing effect of the sleeve 13 to the sliding rod 124.

In the embodiment, the sleeve 13 can be sleeved and screwed on the rod body, and the sleeve 13 can be fixed, so that the sleeve 13 can fix the side plate 1.

Referring to fig. 2 and 3, in order to adjust the position of the universal wheel 122 on the support rod 121, so that the universal wheel 122 abuts against the ground or is separated from the abutting relation with the ground, an opening 14 is opened at the end of the connecting rod 12 away from the side plate 1, and the support rod 121 is inserted into and slidably connected in the opening 14.

Referring to fig. 2 and 3, in order to prevent the support rod 121 from tilting when moving in the opening 14 and improve the contact effect between the universal wheel 122 on the support rod 121 and the ground, a sliding groove 141 is formed at an edge of the opening 14 away from the connecting rod 12, a sliding bar 142 slidably connected in the sliding groove 141 is disposed on the support rod 121, and the sliding bar 142 is disposed along the length direction of the support rod 121.

In order to further improve the guiding effect of the sliding groove 141 and the sliding strip 142 on the supporting rod 121, with reference to fig. 2 and 3, the cross section of the sliding groove 141 is configured to be "T" shaped, and the sliding strip 142 is configured to cooperate with the "T" shaped sliding groove 141.

Referring to fig. 2 and 3, in order to fix any position of the supporting rod 121 to the connecting rod 12, so that the universal wheel 122 is fixed, the fixing plate 15 is fixedly disposed on the connecting rod 12 and located at a position close to the opening 14, the second fixing member includes a second spring 151 with one end connected to a surface of the fixing plate 15 facing the supporting rod 121, a plate body 152 is disposed at an end of the second spring 151 away from the fixing plate 15, a plurality of fixing holes 153 are disposed along a length direction of the supporting rod 121 on a surface of the supporting rod 121 facing away from the slide bar 142, and an insertion rod 154 for being inserted into any one of the fixing holes 153 is disposed on a surface of the plate body 152 facing the supporting rod 121.

When the prefabricated part body needs to be driven to move, the connecting rod 12 is fixed on the side plate 1, the inserting rod 154 on the plate body 152 is driven to move out of the fixing hole 153 through the elastic force resisting the second spring 151, the supporting rod 121 is driven to move in the opening 14 at the moment, when the universal wheel 122 abuts against the ground, the plate body 152 is loosened, the plate body 152 can drive the inserting rod 154 to be inserted into the fixing hole 153 through the elastic force resisting the second spring 151, the supporting rod 121 is fixed on the connecting rod 12, the universal wheel 122 is fixed to the state of abutting against the ground, after the prefabricated part body moves to a specified position, the universal wheel 122 can be fixed to the relation separated from the ground, and the connecting rod 12 is convenient to detach.

Referring to fig. 2 and 3, in order to prevent the second spring 151 from driving the inserting rod 154 to incline, so that the inserting rod 154 can be better connected to the fixing hole 153, a guide rod 155 is disposed between the plate body 152 and the fixing plate 15, one end of the guide rod 155 is connected to the plate body 152, the other end of the guide rod 155 is inserted into and slidably connected to the fixing plate 15, and the guide rod 155 is sleeved with the second spring 151.

In other embodiments, a bolt may be threaded through the fixing plate 15, and the bolt is driven to rotate on the fixing plate 15, so that the rod portion of the bolt moves into the fixing hole 153, and the fixing of the supporting rod 121 may also be completed.

The implementation principle of the embodiment is as follows: when the prefabricated component body needs to be driven to move, the bottom plate 11, the top plate 111 and the side plate 1 are moved to positions needing to be spliced, the bottom plate 11, the top plate 111 and the side plate 1 are spliced together through the connecting strip 113 and the connecting groove 112, the sliding rod 124 is arranged on the side plate 1 in a penetrating manner, the abutting plate 123 is driven to abut against the side plate 1, the two arc-shaped cylinders 131 are driven to be away from each other at the moment, the first spring 132 is pulled to be in a stretching state, the two arc-shaped cylinders 131 are sleeved on the sliding rod 124, the two arc-shaped cylinders 131 can resist the elastic force of the first spring 132 to drive the fixing block 133 to be clamped into the groove body 125 on the sliding rod 124, the side plate 1 is fixed between the sleeve 13 and the abutting plate 123, the inserting rod 154 on the plate body 152 is driven to move out in the fixing hole 153 by resisting the elastic force of the second spring 151, the second spring 151 is, drive draw runner 142 and remove in spout 141, when universal wheel 122 butt to subaerial, loosen plate body 152, plate body 152 can drive peg graft pole 154 because of the elasticity of second spring 151 and peg graft to fixed orifices 153 in, thereby make bracing piece 121 fixed to connecting rod 12 on, make universal wheel 122 fixed to the state on butt ground, conveniently drive the prefabricated component body and remove in subaerial, thereby conveniently splice a plurality of prefabricated component bodies, saved the manpower.

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 equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a utility tunnel concrete prefabricated component, includes the prefabricated component body, its characterized in that: the prefabricated part body comprises two side plates (1) which are parallel to each other and arranged at intervals, a bottom plate (11) and a top plate (111) are respectively arranged between the side plates (1) at two sides and positioned at the bottom and the upper part of the side plates (1), the bottom plate (11), the side plates (1) and the top plate (111) are all arranged in a hollow manner, a plurality of pouring holes (114) are respectively formed in the opposite surfaces of the side plates (1) at the two sides and the opposite surfaces of the bottom plate (11) and the top plate (111), connecting rods (12) are respectively arranged on the surfaces of the side plates (1) at the two sides, which are deviated from each other, and on the two sides of the side plates (1), the end part of the connecting rod (12) far away from the side plate (1) is provided with a supporting rod (121) which is vertical to the connecting rod (12), the end part, far away from the connecting rod (12), of the supporting rod (121) is provided with a universal wheel (122), and the connecting rod (12) is detachably connected to the side plate (1).

2. The utility tunnel concrete prefabricated component of claim 1, characterized in that: the utility model discloses a curb plate, including connecting rod (12), butt joint board (123), perpendicular to connecting rod (12) are provided with butt joint board (123) near the tip of curb plate (1), butt joint board (123) are used for the face butt that deviates from mutually with both sides curb plate (1), butt joint board (123) deviate from on the face of connecting rod (12) perpendicular to butt joint board (123) and are provided with slide bar (124), slide bar (124) are used for wearing to establish and sliding connection on curb plate (1), the tip that butt joint board (123) were kept away from in slide bar (124) is provided with and is used for fixing slide bar (124) to the first mounting on curb plate (1).

3. The utility tunnel concrete prefabricated component of claim 2, characterized in that: first mounting establishes and sleeve (13) on sliding rod (124) including the cover, sleeve (13) include two arc section of thick bamboo (131) that splice each other and form, two the notch of arc section of thick bamboo (131) sets up relatively, two be provided with a plurality of first springs (132) between the both sides edge of arc section of thick bamboo (131), the both ends of first spring (132) are connected to respectively on the edge of arc section of thick bamboo (131) of both sides.

4. The utility tunnel concrete prefabricated component of claim 3, characterized in that: two all be provided with fixed block (133) on the face that arc section of thick bamboo (131) are relative, slide bar (124) are gone up and are seted up a plurality of cell bodies (125) along the length direction of slide bar (124), every cell body (125) all set up along the hoop on slide bar (124), cell body (125) are used for supplying fixed block (133) in two arc section of thick bamboos (131) to move in simultaneously.

5. The utility tunnel concrete prefabricated component of claim 4, characterized in that: the end part, far away from the side plate (1), of the connecting rod (12) is provided with an opening (14), the supporting rod (121) penetrates through the opening (14) and is connected in the opening in a sliding mode, and a second fixing piece used for fixing the supporting rod (121) to any position on the connecting rod (12) is arranged on the connecting rod (12).

6. The utility tunnel concrete prefabricated component of claim 5, characterized in that: the edge of the opening (14) far away from the connecting rod (12) is provided with a sliding groove (141), the supporting rod (121) is provided with a sliding strip (142) connected in the sliding groove (141) in a sliding mode, and the sliding strip (142) is arranged along the length direction of the supporting rod (121).

7. The utility tunnel concrete prefabricated component of claim 6, characterized in that: the fixing device is characterized in that a fixing plate (15) is fixedly arranged on the connecting rod (12) and located close to the opening (14), the second fixing piece comprises a second spring (151) with one end connected to the surface, facing the supporting rod (121), of the fixing plate (15), a plate body (152) is arranged at the end portion, far away from the fixing plate (15), of the second spring (151), a plurality of fixing holes (153) are formed in the surface, facing away from the sliding strip (142), of the supporting rod (121) along the length direction of the supporting rod (121), and an inserting rod (154) used for being inserted into any one fixing hole (153) is arranged on the surface, facing the supporting rod (121), of the plate body (152).

8. The utility tunnel concrete precast member of claim 7, characterized in that: be provided with guide bar (155) between plate body (152) and fixed plate (15), the one end of guide bar (155) is connected to on plate body (152), and the other end wears to establish and sliding connection on fixed plate (15), second spring (151) cover is located on guide bar (155).

9. The utility tunnel concrete prefabricated component of claim 1, characterized in that: both sides just be located roof (111) and bottom plate (11) position on the relative face of curb plate (1) and all seted up spread groove (112), the both sides edge of roof (111) and bottom plate (11) is provided with sliding connection in connecting strip (113) in spread groove (112).

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