A pre-buried protection device for internal pipelines in tunnel construction

Abstract

The tunnel construction internal pipeline pre-buried protection device provided by the present invention includes a protective shell and a protective cover, and a buried wire space extending along a first direction is formed between the protective shell and the protective cover; the tunnel construction internal pipeline pre-buried protection device also includes a lifting mechanism and a first elastic member; the lifting mechanism includes a fixed part and a lifting part, the lifting part can be lifted and lowered relative to the fixed part, and the protective shell is fixedly connected to the lifting part; the protective cover is movably connected to the protective shell along a second direction, and the first elastic member is arranged between the protective shell and the protective cover. Under the action of the restoring force of the first elastic member, the protective cover has a tendency to move toward the protective shell along the second direction. A lifting mechanism is added to achieve height adjustment, reduce construction difficulty, and improve construction efficiency. The protective shell and the protective cover use elastic members to form a rebound telescopic structure. After the pipeline is placed, the protective cover rebounds and clamps the pipeline in the buried wire space, further restricting and protecting the pipeline and improving the protection effect.

Description

Technical Field

[0001] The invention relates to the technical field of engineering equipment, and in particular to a pre-buried protection device for internal pipelines in tunnel construction. Background Art

[0002] Tunnels are engineering buildings buried in the ground, and are a form of human use of underground space. The structure of a tunnel consists of two parts: the main building and the ancillary equipment. The main building consists of a tunnel body and a tunnel door, and the ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications and drainage facilities. Long tunnels also have special ventilation and lighting equipment. During tunnel construction, pipelines need to be installed inside, and the pipelines need to be pre-buried for protection during installation.

[0003] The problem with the existing pipeline pre-buried protection device is that the height of the pipeline pre-buried protection device cannot be adjusted, and the height of the protection device needs to be controlled during the construction process, which has low construction efficiency; in addition, the internal space of the pipeline pre-buried protection device is fixed, and the pipeline inside it cannot be further limited and protected. Summary of the invention

[0004] The purpose of the present invention is to provide a tunnel construction internal pipeline pre-buried protection device which is height-adjustable and can further limit the protection of the pipeline.

[0005] The pre-buried protection device for internal pipelines in tunnel construction provided by the present invention includes a protective shell and a protective cover, and a buried wire space extending along a first direction is formed between the protective shell and the protective cover; the pre-buried protection device for internal pipelines in tunnel construction also includes a lifting mechanism and a first elastic member; the lifting mechanism includes a fixed part and a lifting part, the lifting part can be lifted and lowered relative to the fixed part, and the protective shell is fixedly connected to the lifting part; the protective cover is movably connected to the protective shell along a second direction, the first elastic member is arranged between the protective shell and the protective cover, and under the action of the restoring force of the first elastic member, the protective cover has a tendency to move toward the protective shell along the second direction.

[0006] It can be seen from the above scheme that, firstly, the pre-buried pipeline protection device adds a lifting mechanism to achieve height adjustment, reduce the construction difficulty and improve the construction efficiency. In addition, the protective shell and the protective cover use elastic parts to form a rebound telescopic structure. Before placing the pipeline, the protective cover is pulled out first, and the buried wire space is increased to facilitate placement; after the pipeline is placed, the protective cover is loosened, and the protective cover rebounds and clamps the pipeline in the buried wire space, thereby further limiting the protection of the pipeline and improving the protection effect.

[0007] A further solution is that the protective cover includes at least two cover units detachably connected along a first direction.

[0008] As can be seen from the above, this setting allows the protective cover to be disassembled and spliced ​​according to length requirements, and can also achieve splicing between protective shells.

[0009] A further solution is that between two adjacent cover units, in a first direction, an extending end portion of one cover unit is provided with a slot, and an extending end portion of the other cover unit is provided with an inserting portion, and the inserting portion is inserted into the slot.

[0010] It can be seen from the above that this arrangement can improve the connection stability between the cover units.

[0011] A further solution is that the cover body unit has a protective wall surrounding the slot, and the protective wall is provided with a bayonet opened along the second direction; the protective cover also includes a second elastic member and a snap member, the second elastic member is arranged between the insertion part and the snap member, and the snap member cooperates with the bayonet; the snap member can move toward the insertion part along the second direction, and the second elastic member stores energy.

[0012] As can be seen from the above, the latch cooperates with the bayonet to prevent the cover units from detaching. When the cover unit needs to be disassembled, the latch only needs to be pressed down and moved away from the bayonet, and the insertion part can be pulled out of the slot. This arrangement reduces the difficulty of splicing the cover units and improves the connection stability.

[0013] A further solution is that the inner contour of the bayonet and the outer contour of the buckle are both elongated.

[0014] As can be seen from the above, this arrangement increases the matching area between two adjacent cover units, avoids stress concentration, and improves stability.

[0015] A further solution is that the protective shell has a bottom wall and two first side walls respectively arranged on opposite sides of the bottom wall, and the first side wall blocks the buried wire space from a third direction; the protective cover includes a baffle wall and a second side wall, the two second side walls are bent and extended from opposite sides of the baffle wall, the baffle wall blocks the buried wire space from the second direction, and the first side wall and the second side wall overlap each other in the third direction.

[0016] As can be seen from the above, this arrangement enables the protective shell and the protective cover to always effectively shield and protect the pipelines in the buried cable space from all sides.

[0017] A further solution is that in the third direction, the protective shell is provided with two first side walls on each side of the wire embedding space, and a storage groove extending along the first direction is formed between two adjacent first side walls; the second side wall is movably arranged in the storage groove along the second direction.

[0018] As can be seen from the above, this arrangement can further restrict the protective cover, and the protective cover can stably move along the second direction relative to the protective shell, thereby improving the structural stability of the protective device.

[0019] A further solution is that the lifting mechanism includes a motor and a lifting screw rod arranged on the fixing part, the motor is used to drive the lifting screw rod to rotate; the lifting part is provided with a threaded through hole, and the lifting screw rod cooperates with the threaded through hole.

[0020] A further solution is that at least two lifting screw rods are arranged between the fixing part and the lifting part.

[0021] A further solution is that a belt transmission assembly is provided between the motor and the lifting screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram from the first perspective of the first embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention.

[0023] Figure 2 This is a structural diagram from the second perspective of the first embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention.

[0024] Figure 3 This is a structural exploded view of the first embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention.

[0025] Figure 4 This is a structural diagram of the protective shell, protective cover and first elastic member in the first embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention.

[0026] Figure 5 This is a working principle diagram of the first embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the protective cover in the second embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention. DETAILED DESCRIPTION

[0028] First embodiment of the pre-buried protection device for internal pipelines in tunnel construction

[0029] See also Figure 1 and Figure 2 , Figure 1 This is a structural diagram of a first-view embodiment of a pre-buried protection device for internal pipelines in tunnel construction according to the present invention. Figure 2 This is a structural diagram of the second perspective of an embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention. A unified spatial rectangular coordinate system is established in each of the drawings, in which the x-axis direction is the first direction of the present application, the y-axis direction is the second direction of the present application, and the z-axis direction is the third direction of the present application, which is also the height direction. The pre-buried protection device for internal pipelines in tunnel construction includes a lifting mechanism 1, a protective shell 2 and a protective cover 3. The lifting mechanism 1 is used to realize the lifting movement of the protective shell 2 and the protective cover 3, and the protective shell 2 and the protective cover 3 cover each other.

[0030] The lifting mechanism 1 comprises a fixed part 11, a lifting part 12, a motor 13 arranged on the fixed part 11, a belt transmission assembly 14 and a lifting screw 15. The fixed part 11 is a seat body, and the fixed part 11 comprises a base 111 and two third side walls 112 extending upward from the two side edges of the base 111 respectively, the base 111 and the two third side walls 112 are both extended in the x-axis direction to form an elongated shape, and an upper fixed groove 110 penetrating along the x-axis direction is formed above the base 11 and between the two third side walls 112, the motor 13 is fixed in the base 111, and the output shaft of the motor 13 is coaxially connected with the driving pulley 141 of the belt transmission assembly 14 in the fixed groove 110, and three driven pulleys 142 are each fixedly connected with a lifting screw 15 arranged along the z-axis direction, and the transmission belt is connected between the driving pulley 141 and the driven pulley 140. The lifting part 12 is fixedly connected to one side of the protective shell 2. A threaded through hole 120 is provided on the lifting part 12. The lifting screw 15 cooperates with the threaded through hole 120. When the motor 13 is started, the lifting screw 15 can be driven to rotate through the belt transmission assembly 14, thereby realizing the lifting and lowering movement of the lifting part 12, the protective shell 2 and the protective cover 3, reducing the construction difficulty and improving the construction efficiency.

[0031] Recombination Figure 3 and Figure 4 , Figure 3 This is a structural exploded view of an embodiment of a pre-buried protection device for internal pipelines in tunnel construction according to the present invention. Figure 4 The structure diagram of the protective shell, protective cover and first elastic member in the embodiment of the tunnel construction internal pipeline pre-buried protection device of the present invention. A buried wire space 200 extending along the x-axis is formed between the protective shell 2 and the protective cover 3. The protective shell 2 has a bottom wall 21 and two first side walls 22 respectively arranged on opposite sides of the bottom wall 21, and the first side walls 22 shield the buried wire space 200 from the third direction.

[0032] In the z-axis direction, the protective shell 2 is provided with two first side walls 22 on each side of the wire embedding space 200 , and a receiving groove 220 extending along the x-axis direction is formed between two adjacent first side walls 22 .

[0033] The protective cover 3 includes three detachably connected cover units, namely a first cover unit 31 and two second cover units 32. In the x-axis direction, the first second cover unit 32, the first cover unit 31 and the second second cover unit 32 are detachably connected in sequence, and the first cover unit 31 is connected to the protective shell 2.

[0034] The first cover unit 31 and the second cover unit 32 are similar in contour. In the x-axis direction, the contours of both are in a "U" shape. Both include a retaining wall 311 and second side walls 312. The two second side walls 312 bend and extend from opposite sides of the retaining wall 311. When the first cover unit 31 and the second cover unit 32 are installed on the protective shell 2, the retaining wall 311 shields the buried wire space 200 in the y-axis direction, and the second side walls 312 shield the buried wire space 200 in the z-axis direction. The first side wall 22 and the second side walls 312 overlap each other in the z-axis direction, and the second side walls 312 are movably arranged in the receiving groove 220 along the y-axis direction.

[0035] In the x-axis direction, slots 313 in a "U" shape are provided at both extended ends of the first cover unit 31, and the first cover unit 31 has a protective wall 314 arranged around the slots 313. A bayonet 315 is provided on the protective wall 314 and is opened in the y-axis direction. The bayonet 315 extends in a long shape in the z-axis direction.

[0036] In the x-axis direction, an insertion part 33 in a "U" shape is provided at the extended end of the second cover unit 32. The insertion part 33 is used to be inserted into the slots 313. The protective cover 3 further includes a second elastic member 42 and a buckle member 34 arranged in a groove 330 of the insertion part 33. The second elastic member 42 is arranged between the insertion part 33 and the buckle member 34. Among them, the second elastic member 42 is a compression spring, and the buckle member 34 is a block extending in a long shape in the z-axis direction. Under the limitation of the groove 330, when pressed by the construction personnel, the buckle member 34 can move towards the insertion part 33 along the negative y-axis direction, and at the same time, the second elastic member 42 stores energy.

[0037] When splicing the first cover unit 31 and the second cover unit 32, only need to press the buckle member 34 to make it retract into the groove 330, and then insert the insertion part 33 into the slots 313. Under the restoring force of the second elastic member 42, the buckle member 34 rebounds along the positive y-axis direction and enters the bayonet 315, thus completing the buckling and locking of the first cover unit 31 and the second cover unit 32.

[0038] See Figure 4 and Figure 5 , Figure 5 is the working principle diagram of the embodiment of the internal pipeline pre-buried protection device for tunnel construction of the present invention. The internal pipeline pre-buried protection device for tunnel construction further includes a first elastic member 41. The first elastic member 41 is a tension spring. The second side walls 312 are movably arranged in the receiving groove 220 along the y-axis direction, and the first elastic member 41 is tractioned between the second side walls 312 and the bottom wall 21 along the y-axis direction. Under the restoring force of the first elastic member 41, the protective cover 3 has a tendency to move towards the protective shell 2 along the negative y-axis direction.

[0039] The protective shell 2 and the protective cover 3 use a tension spring to form a resilient telescopic structure. Before placing the pipeline, the protective cover 3 is first pulled outward along the positive direction of the y-axis, and the buried wire space 200 is enlarged to facilitate placement. After the pipeline is placed, the protective cover 3 is released, and the protective cover 3 rebounds under the restoring force of the first elastic member 41 and clamps the pipeline in the buried wire space 200, thereby further limiting the protection of the pipeline and improving the protection effect.

[0040] Second embodiment of the pre-buried protection device for internal pipelines in tunnel construction

[0041] See also Figure 6 , Figure 6 The figure is a schematic diagram of the structure of the protective cover in the second embodiment of the pre-buried protection device for internal pipelines in tunnel construction of the present invention. In this embodiment, in the first direction (the x-axis direction in the figure), the two ends of the extension of the cover unit 5 are respectively provided with an insertion portion 51 and a slot 52. Multiple cover units 5 can be inserted in sequence along the x-axis direction, and the number of cover units 5 spliced ​​is not limited.

[0042] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pre-buried protection device for internal pipelines in tunnel construction, comprising a protection shell and a protection cover, wherein a buried wire space extending along a first direction is formed between the protection shell and the protection cover; Features: The tunnel construction internal pipeline pre-buried protection device also includes a lifting mechanism and a first elastic member; The lifting mechanism comprises a fixed part and a lifting part, the lifting part can move up and down relative to the fixed part, and the protective shell is fixedly connected to the lifting part; The protective cover is movably connected to the protective shell along a second direction, the first elastic member is arranged between the protective shell and the protective cover, and under the action of the restoring force of the first elastic member, the protective cover has a tendency to move toward the protective shell along the second direction; The protective cover comprises at least two cover units detachably connected along the first direction; Between two adjacent cover units, in the first direction, an extended end portion of one cover unit is provided with a slot, and an extended end portion of the other cover unit is provided with an inserting portion, and the inserting portion is inserted into the slot; The lifting mechanism comprises a motor and a lifting screw rod arranged on the fixing part, and the motor is used to drive the lifting screw rod to rotate; The lifting part is provided with a threaded through hole, and the lifting screw rod cooperates with the threaded through hole; At least two lifting screw rods are arranged between the fixing part and the lifting part; A belt transmission assembly is arranged between the motor and the lifting screw rod.

2. The tunnel construction internal pipeline pre-buried protection device according to claim 1 is characterized by: The cover unit has a protective wall surrounding the slot, and the protective wall is provided with a bayonet opening opened along the second direction; The protective cover further comprises a second elastic member and a buckle member, wherein the second elastic member is arranged between the insertion portion and the buckle member, and the buckle member cooperates with the bayonet; The buckle member can move toward the insertion portion along the second direction, while the second elastic member stores energy.

3. The tunnel construction internal pipeline pre-buried protection device according to claim 2 is characterized by: The inner contour of the bayonet and the outer contour of the buckle are both elongated.

4. The tunnel construction internal pipeline pre-buried protection device according to any one of claims 1 to 3, characterized in that: The protective shell has a bottom wall and two first side walls respectively arranged on opposite sides of the bottom wall, and the first side walls shield the wire embedding space from a third direction; The protective cover comprises a retaining wall and a second side wall, two second side walls are bent and extended from opposite sides of the retaining wall, the retaining wall shields the buried wire space from the second direction, and the first side wall and the second side wall overlap each other in the third direction.

5. The tunnel construction internal pipeline pre-buried protection device according to claim 4 is characterized by: In the third direction, the protective shell is provided with two first side walls on each side of the wire embedding space, and a receiving groove extending along the first direction is formed between two adjacent first side walls; The second side wall is movably disposed in the receiving groove along the second direction.

Images