Light prefabricated comprehensive pipe gallery

Abstract

The application is suitable for the technical field of prefabricated comprehensive pipe gallery, and provides a light prefabricated comprehensive pipe gallery, which comprises a plurality of pipe gallery bodies and sealing connection mechanisms, two pipe gallery bodies are sealingly connected through the sealing connection mechanisms, and further comprises a bottom plate, a fixed sliding block is fixed on the pipe gallery body, a guide sliding groove is arranged on the bottom plate, and the fixed sliding block is slidingly connected on the guide sliding groove. The cable is placed on the guide roller, the cable is pulled through the rotation of the guide roller, when the cable arrangement is completed, the fixing assembly releases the restriction of the pressing plate, the first spring pulls the pressing plate to rotate downward, the pressing plate cooperates with the guide roller to fix the cable, the reverse restriction assembly restricts the pressing plate from rotating away from the guide roller, the rotation stopping assembly restricts the rotation of the first rotating shaft through the rotation of the pressing plate to the guide roller, and then the fixing of the pressing plate and the guide roller to the cable is more stable, and then the cable arrangement and fixing are facilitated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of prefabricated comprehensive pipe gallery, and particularly relates to a light prefabricated comprehensive pipe gallery. BACKGROUND

[0002] The urban comprehensive pipe gallery refers to a tunnel space built underground in a city, in which various types of engineering pipelines such as power, communication, heat supply and water supply are integrated, and the ground attachments are facilities such as outlet and vent, which is an important infrastructure and "lifeline" to ensure the operation of the city. In order to facilitate the installation of the comprehensive pipe gallery, the comprehensive pipe gallery is usually prefabricated, and then installed on site.

[0003] The cable needs to be arranged in the comprehensive pipe gallery. Generally, the cable is placed on the cable bracket, and then the cable is fixed by using the cable clamp. When the cable is placed on the cable bracket, the cable cannot be pulled and adjusted, so the cable arrangement needs to be completed at one time, which is not convenient for the later cable adjustment and the installation of the cable. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a light prefabricated comprehensive pipe gallery, which aims to solve the problem that the cable cannot be pulled and adjusted when the cable is placed on the cable bracket.

[0005] The present application is implemented as follows: a light prefabricated comprehensive pipe gallery, comprising a plurality of pipe gallery bodies and a sealing connection mechanism, two pipe gallery bodies are sealingly connected through the sealing connection mechanism, further comprising: a bottom plate, a fixed sliding block is fixed on the pipe gallery body, a guide sliding groove is arranged on the bottom plate, the fixed sliding block is slidingly connected on the guide sliding groove, and a fastening bolt is threadedly connected on the bottom plate; a plurality of cable installation modules are arranged in the pipe gallery body; the cable installation module comprises a supporting plate, a vertical plate, a pressing plate, a first rotating shaft, a first spring, a second rotating shaft, a rotation stopping assembly, a reverse limiting assembly and a fixing assembly; the supporting plate is fixed on the inner wall of the pipe gallery body, the vertical plate is fixed on the supporting plate, the second rotating shaft is fixed on the vertical plate, the pressing plate is rotatably connected on the second rotating shaft, and the two ends of the first spring are connected with the vertical plate and the pressing plate respectively; the first rotating shaft is rotatably connected on the vertical plate, and a guide roller is fixed on the vertical plate; the rotation stopping assembly, the reverse limiting assembly and the fixing assembly are all arranged on the vertical plate, the rotation stopping assembly limits the rotation of the first rotating shaft through the rotation of the pressing plate towards the guide roller, the reverse limiting assembly is used for limiting the rotation of the pressing plate away from the guide roller, and the fixing assembly is used for fixing the pressing plate.

[0006] Further technical solutions, the sealing connection mechanism includes L-shaped plate, sealing ring and fastening assembly; one end of the pipe gallery body is provided with a sealing groove, the other end of the pipe gallery body is provided with a sealing slope, both ends of the pipe gallery body are fixed with L-shaped plates, the L-shaped plates are provided with first inclined pushing surfaces, the sealing ring is sleeved on the end of the pipe gallery body, both sides of the sealing ring are provided with second inclined pushing surfaces, and the two L-shaped plates are fixedly connected through the fastening assembly.

[0007] Further technical solutions, the fastening assembly includes a connecting lug, a connecting bolt and a nut; the connecting lug is fixed on the L-shaped plate, the connecting lug is provided with a through hole, the connecting bolt penetrates through the through hole, and the nut is threadedly connected on the connecting bolt.

[0008] Further technical solutions, the rotation stopping assembly includes a first sliding block, a second spring, a pull rope and a first inserting rod, the vertical plate is provided with a first sliding groove, the first sliding block is slidably connected to the first sliding groove, one end of the first sliding block is connected with the first inserting rod, the other end of the first sliding block is connected with the second spring and the pull rope, the second spring is arranged in the first sliding groove, and the end of the pull rope is connected with the pressing plate, and a plurality of inserting holes are arranged in the annular of the first rotating shaft.

[0009] Further technical solutions, the reverse limiting assembly includes a ratchet wheel, a second sliding block, a meshing tooth, a third spring and a first pull rod, the pressing plate is provided with a mounting groove and a second sliding groove, the ratchet wheel is arranged in the mounting groove, the ratchet wheel is fixed on the second rotating shaft, the second sliding block is slidably connected to the second sliding groove, one end of the second sliding block is connected with the meshing tooth, the other end of the second sliding block is connected with the third spring and the first pull rod, and the third spring is arranged in the second sliding groove.

[0010] Further technical solutions, the fixing assembly includes a third sliding block, a second inserting rod, a fourth spring and a second pull rod, the vertical plate is provided with a third sliding groove, the third sliding block is slidably connected to the third sliding groove, one end of the third sliding block is connected with the second inserting rod, the other end of the third sliding block is connected with the fourth spring and the second pull rod, the fourth spring is arranged in the third sliding groove, and the second inserting rod and the second pull rod penetrate through the vertical plate.

[0011] Further technical solutions, the pipe gallery body is connected with a plurality of supporting feet through bolts and nuts on both sides.

[0012] The light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is sealed and fixedly connected through the sealing connecting mechanism between the two pipe gallery bodies, the pressing plate is turned upward, then the pressing plate is fixed by the fixing assembly, the cable is placed on the guide roller, the cable is pulled through the rotation of the guide roller, when the cable arrangement is completed, the fixing assembly releases the restriction of the pressing plate, the first spring pulls the pressing plate to turn downward, so that the pressing plate cooperates with the guide roller to fix the cable, the reverse restriction assembly restricts the rotation of the pressing plate away from the guide roller, the rotation stopping assembly restricts the rotation of the first rotating shaft through the rotation of the pressing plate to the guide roller, so that the fixation of the pressing plate and the guide roller to the cable is more stable, and then the cable can be arranged and fixed, when the cable needs to be disassembled, the reverse restriction assembly releases the restriction of the rotation of the pressing plate, then the pressing plate is turned upward, and the pressing plate is fixed by the fixing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure schematic view of the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure;

[0014] Figure 2 The right side structure schematic view of the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 1

[0015] Figure 3 The internal structure schematic view of the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 1

[0016] Figure 4 The structure schematic view of the cable installation module in the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 1

[0017] Figure 5 The internal structure schematic view of the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 4

[0018] Figure 6 The enlarged structure schematic view of A in the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 3

[0019] Figure 7 The enlarged structure schematic view of B in the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 1

[0020] Figure 8 The enlarged structure schematic view of C in the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 5

[0021] Figure 9 The enlarged structure schematic view of D in the light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is shown in the figure; Figure 5

[0022] Figure 10 The light prefabricated comprehensive pipe gallery provided by the embodiment of the present application is sealed and fixedly connected through the sealing connecting mechanism between the two pipe gallery bodies, the pressing plate is turned upward, then the pressing plate is fixed by the fixing assembly, the cable is placed on the guide roller, the cable is pulled through the rotation of the guide roller, when the cable arrangement is completed, the fixing assembly releases the restriction of the pressing plate, the first spring pulls the pressing plate to turn downward, so that the pressing plate cooperates with the guide roller to fix the cable, the reverse restriction assembly restricts the rotation of the pressing plate away from the guide roller, the rotation stopping assembly restricts the rotation of the first rotating shaft through the rotation of the pressing plate to the guide roller, so that the fixation of the pressing plate and the guide roller to the cable is more stable, and then the cable can be arranged and fixed, when the cable needs to be disassembled, the reverse restriction assembly releases the restriction of the rotation of the pressing plate, then the pressing plate is turned upward, and the pressing plate is fixed by the fixing assembly.​​​​​​​​Figure 5 Enlarged structural schematic view of the middle E.

[0023] In the drawings: pipe gallery body 101, fixed sliding block 102, guide sliding chute 103, bottom plate 104, fastening bolt 105, support foot 106, supporting plate 107, vertical plate 108, pressing plate 109, first rotating shaft 110, guide roller 111, first spring 112, second rotating shaft 113, sealing connection mechanism 2, sealing groove 201, sealing inclined surface 202, L-shaped plate 203, first inclined pushing surface 204, sealing ring 205, second inclined pushing surface 206, fastening assembly 3, connecting lug 301, through hole 302, connecting bolt 303, nut 304, rotation-stopping assembly 4, first sliding chute 401, first sliding block 402, second spring 403, pull rope 404, first inserting rod 405, inserting hole 406, reverse limiting assembly 5, mounting groove 501, ratchet wheel 502, second sliding chute 503, second sliding block 504, meshing tooth 505, third spring 506, first pull rod 507, fixing assembly 6, third sliding chute 601, third sliding block 602, second inserting rod 603, fourth spring 604, second pull rod 605. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0025] The specific implementation of the present application will be described in detail below with reference to specific embodiments.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 9As shown, a light prefabricated comprehensive pipe gallery provided by one embodiment of the application comprises a plurality of pipe gallery bodies 101 and sealing connection mechanisms 2, two pipe gallery bodies 101 are sealingly connected through the sealing connection mechanisms 2, further comprising: a bottom plate 104, the pipe gallery body 101 is fixed with a fixed sliding block 102, the bottom plate 104 is provided with a guide sliding groove 103, the fixed sliding block 102 is slidingly connected on the guide sliding groove 103, and the bottom plate 104 is threadedly connected with a fastening bolt 105; a plurality of groups of cable installation modules are arranged in the pipe gallery body 101; the cable installation module comprises a supporting plate 107, a vertical plate 108, a pressing plate 109, a first rotating shaft 110, a first spring 112, a second rotating shaft 113, a rotation-stopping assembly 4, a reverse-limiting assembly 5 and a fixing assembly 6; the supporting plate 107 is fixed on the inner wall of the pipe gallery body 101, the vertical plate 108 is fixed on the supporting plate 107, the second rotating shaft 113 is fixed on the vertical plate 108, the pressing plate 109 is rotatably connected on the second rotating shaft 113, and the two ends of the first spring 112 are connected with the vertical plate 108 and the pressing plate 109 respectively; the first rotating shaft 110 is rotatably connected on the vertical plate 108, and the vertical plate 108 is fixed with a guide roller 111; the rotation-stopping assembly 4, the reverse-limiting assembly 5 and the fixing assembly 6 are all arranged on the vertical plate 108, the rotation-stopping assembly 4 limits the rotation of the first rotating shaft 110 through the rotation of the pressing plate 109 towards the guide roller 111, the reverse-limiting assembly 5 is used for limiting the rotation of the pressing plate 109 away from the guide roller 111, and the fixing assembly 6 is used for fixing the pressing plate 109.

[0027] In the embodiment of the application, when installed, two pipe gallery bodies 101 are sealingly and fixedly connected through the sealing connection mechanisms 2, the pressing plate 109 is rotated upwards, then the fixing assembly 6 fixes the pressing plate 109, then the fastening bolt 105 is rotated to tightly abut against the fixed sliding block 102, so that the fixed sliding block 102 is fixedly connected with the bottom plate 104, then the cable is placed on the guide roller 111, and the rotation of the guide roller 111 facilitates the pulling of the cable, when the cable arrangement is completed, the fixing assembly 6 releases the limitation of the pressing plate 109, the first spring 112 pulls the pressing plate 109 to rotate downwards, so that the pressing plate 109 cooperates with the guide roller 111 to fix the cable, the reverse-limiting assembly 5 limits the rotation of the pressing plate 109 away from the guide roller 111, the rotation-stopping assembly 4 limits the rotation of the first rotating shaft 110 through the rotation of the pressing plate 109 towards the guide roller 111, so that the fixation of the pressing plate 109 and the guide roller 111 on the cable is more stable, thereby facilitating the arrangement and fixation of the cable, when the cable needs to be disassembled, the reverse-limiting assembly 5 releases the limitation of the rotation of the pressing plate 109, then the pressing plate 109 is rotated upwards, and the fixing assembly 6 fixes the pressing plate 109.

[0028] As Figure 6 andFigure 7 As shown in the figure, as a preferred embodiment of the present application, the sealing connection mechanism 2 comprises an L-shaped plate 203, a sealing ring 205 and a fastening assembly 3; one end of the pipe gallery body 101 is provided with a sealing groove 201, the other end of the pipe gallery body 101 is provided with a sealing slope 202, both ends of the pipe gallery body 101 are fixed with the L-shaped plate 203, the L-shaped plate 203 is provided with a first inclined pushing surface 204, the sealing ring 205 is sleeved on the end of the pipe gallery body 101, both sides of the sealing ring 205 are provided with a second inclined pushing surface 206, the two L-shaped plates 203 are fixedly connected through the fastening assembly 3, the fastening assembly 3 comprises a connecting lug 301, a connecting bolt 303 and a nut 304; the connecting lug 301 is fixed on the L-shaped plate 203, the connecting lug 301 is provided with a through hole 302, the connecting bolt 303 penetrates through the through hole 302, and the nut 304 is threadedly connected on the connecting bolt 303.

[0029] In the embodiment of the present application, the connecting bolt 303 penetrates through the through hole 302, then the nut 304 is rotated on the connecting bolt 303, and then the nut 304 is tightened, so that the two pipe gallery bodies 101 move towards each other, and then the two pipe gallery bodies 101 are fixedly connected, when the two pipe gallery bodies 101 move towards each other, the first inclined pushing surface 204 on the L-shaped plate 203 cooperates with the second inclined pushing surface 206 on the sealing ring 205, and then the sealing ring 205 is extruded, so that the sealing ring 205 seals between the two pipe gallery bodies 101.

[0030] As shown in the figure, Figure 5 and Figure 8 As shown in the figure, as a preferred embodiment of the present application, the rotation stopping assembly 4 comprises a first sliding block 402, a second spring 403, a pull rope 404 and a first inserting rod 405, the vertical plate 108 is provided with a first sliding groove 401, the first sliding block 402 is slidingly connected on the first sliding groove 401, one end of the first sliding block 402 is connected with the first inserting rod 405, the other end of the first sliding block 402 is connected with the second spring 403 and the pull rope 404, the second spring 403 is arranged in the first sliding groove 401, the end of the pull rope 404 is connected with the pressing plate 109, and a plurality of inserting holes 406 are annularly arranged on the first rotating shaft 110.

[0031] In the embodiment of the present application, when the pressing plate 109 moves downward and fixes the cable, the second spring 403 pushes the first sliding block 402, the first sliding block 402 drives the first inserting rod 405 to insert into the insertion hole 406, thereby limiting the rotation of the first rotating shaft 110, and further limiting the rotation of the guide roller 111, so that the fixation of the guide roller 111 to the cable is more stable; when it is needed to move the cable, the pressing plate 109 moves upward, the pressing plate 109 pulls the pull rope 404, the pull rope 404 overcomes the elastic force of the second spring 403 and drives the first sliding block 402 to move upward, the first sliding block 402 drives the first inserting rod 405 to disengage from the insertion hole 406.

[0032] As shown in Figure 5 and Figure 9 , as a preferred embodiment of the present application, the reverse limiting assembly 5 comprises a ratchet wheel 502, a second sliding block 504, an engaging tooth 505, a third spring 506 and a first pull rod 507, the pressing plate 109 is provided with a mounting groove 501 and a second sliding groove 503, the ratchet wheel 502 is arranged in the mounting groove 501, and the ratchet wheel 502 is fixed on the second rotating shaft 113, the second sliding block 504 is slidingly connected on the second sliding groove 503, one end of the second sliding block 504 is connected with the engaging tooth 505, the other end of the second sliding block 504 is connected with the third spring 506 and the first pull rod 507, and the third spring 506 is arranged in the second sliding groove 503.

[0033] In the embodiment of the present application, the third spring 506 pushes the second sliding block 504, the second sliding block 504 drives the engaging tooth 505 to engage with the ratchet wheel 502, thereby making the ratchet wheel 502 limit the upward rotation of the pressing plate 109, so that the fixation of the pressing plate 109 to the cable is more stable.

[0034] As shown in Figure 5 and Figure 10 , as a preferred embodiment of the present application, the fixing assembly 6 comprises a third sliding block 602, a second inserting rod 603, a fourth spring 604 and a second pull rod 605, the vertical plate 108 is provided with a third sliding groove 601, the third sliding block 602 is slidingly connected on the third sliding groove 601, one end of the third sliding block 602 is connected with the second inserting rod 603, the other end of the third sliding block 602 is connected with the fourth spring 604 and the second pull rod 605, the fourth spring 604 is arranged in the third sliding groove 601, and the second inserting rod 603 and the second pull rod 605 both penetrate through the vertical plate 108.

[0035] In the embodiment of the present application, the side wall of the pressing plate 109 is provided with a limiting hole; after the pressing plate 109 is turned upward, the fourth spring 604 pushes the third sliding block 602, and the third sliding block 602 drives the second inserting rod 603 to be inserted into the limiting hole on the pressing plate 109; when it is needed to fix the cable by the pressing plate 109, the second pulling rod 605 is pulled, the second pulling rod 605 overcomes the elastic force of the fourth spring 604 and drives the third sliding block 602 to move, and the third sliding block 602 drives the second inserting rod 603 to be separated from the limiting hole on the pressing plate 109.

[0036] As shown in Figure 1 As a preferred embodiment of the present application, the pipe gallery body 101 is connected with a plurality of supporting feet 106 through bolts and nuts on both sides.

[0037] In the embodiment of the present application, the plurality of supporting feet 106 are arranged to improve the stability of the device.

[0038] In the above embodiment of the present application, a light prefabricated comprehensive pipe gallery is provided. During installation, the connecting bolt 303 is inserted through the through hole 302, then the nut 304 is rotated on the connecting bolt 303, and then the nut 304 is tightened, so that the two pipe gallery bodies 101 move towards each other, and then the two pipe gallery bodies 101 are fixedly connected. When the two pipe gallery bodies 101 move towards each other, the first inclined pushing surface 204 on the L-shaped plate 203 cooperates with the second inclined pushing surface 206 on the sealing ring 205, and then the sealing ring 205 is extruded, so that the sealing ring 205 seals between the two pipe gallery bodies 101. The pressing plate 109 is turned upward, the fourth spring 604 pushes the third sliding block 602, the third sliding block 602 drives the second inserting rod 603 to be inserted into the limiting hole on the pressing plate 109, and the pressing plate 109 is fixed. Then the cable is placed on the guide roller 111, and the guide roller 111 is rotated to facilitate pulling the cable. When the cable is arranged, the second pulling rod 605 is pulled, the second pulling rod 605 overcomes the elastic force of the fourth spring 604 and drives the third sliding block 602 to move, and the third sliding block 602 drives the second inserting rod 603 to be separated from the limiting hole on the pressing plate 109. The first spring 112 pulls the pressing plate 109 to turn downward, so that the pressing plate 109 cooperates with the guide roller 111 to fix the cable. The third spring 506 pushes the second sliding block 504, the second sliding block 504 drives the meshing teeth 505 to engage with the ratchet wheel 502, and then the ratchet wheel 502 limits the upward turning of the pressing plate 109. The second spring 403 pushes the first sliding block 402, the first sliding block 402 drives the first inserting rod 405 to be inserted into the insertion hole 406, and then the rotation of the first rotating shaft 110 is limited, so that the rotation of the guide roller 111 is limited, and then the fixation of the guide roller 111 to the cable is more stable, and then the cable is arranged and fixed.

[0039] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A light prefabricated utility tunnel comprising a plurality of tunnel bodies and a sealing connection mechanism, two tunnel bodies being sealingly connected by the sealing connection mechanism, characterized in that, Also include: The bottom plate is provided with a guide sliding groove, the fixed sliding block is connected with the guide sliding groove in a sliding mode, and the bottom plate is provided with a fastening bolt in a threaded mode; A plurality of cable installation modules are arranged in the pipe gallery body; the cable installation module comprises a supporting plate, a vertical plate, a pressing plate, a first rotating shaft, a first spring, a second rotating shaft, a rotation stopping assembly, a reverse limiting assembly and a fixing assembly; The supporting plate is fixed to the inner wall of the pipe gallery body, the vertical plate is fixed to the supporting plate, the second rotating shaft is fixed to the vertical plate, the pressing plate is rotatably connected to the second rotating shaft, and the two ends of the first spring are connected to the vertical plate and the pressing plate respectively; The first rotating shaft is rotatably connected to the vertical plate, and the vertical plate is provided with a guide roller; The rotation stopping assembly, the reverse limiting assembly and the fixing assembly are arranged on the vertical plate, the rotation stopping assembly limits the rotation of the first rotating shaft by rotating the guide roller through the pressing plate, the reverse limiting assembly is used for limiting the rotation of the pressing plate away from the guide roller, and the fixing assembly is used for fixing the pressing plate. The rotation stopping assembly comprises a first sliding block, a second spring, a pull rope and a first inserting rod, the vertical plate is provided with a first sliding groove, the first sliding block is connected to the first sliding groove in a sliding mode, one end of the first sliding block is connected with the first inserting rod, the other end of the first sliding block is connected with the second spring and the pull rope, the second spring is arranged in the first sliding groove, the end of the pull rope is connected with the pressing plate, and a plurality of inserting holes are arranged in the first rotating shaft in a ring mode; when the pressing plate moves downward and fixes the cable, the second spring pushes the first sliding block, the first sliding block drives the first inserting rod to be inserted into the inserting hole, and the rotation of the first rotating shaft is limited.

2. The lightweight prefabricated utility tunnel according to claim 1, wherein, The sealing connection mechanism comprises an L-shaped plate, a sealing ring and a fastening assembly; one end of the pipe gallery body is provided with a sealing groove, the other end of the pipe gallery body is provided with a sealing inclined surface, the two ends of the pipe gallery body are fixed with the L-shaped plates, the L-shaped plates are provided with first inclined pushing surfaces, the sealing ring is sleeved on the end of the pipe gallery body, the two sides of the sealing ring are provided with second inclined pushing surfaces, and the two L-shaped plates are fixedly connected through the fastening assembly.

3. The lightweight prefabricated utility tunnel according to claim 2, wherein, The fastening assembly comprises a connecting lug, a connecting bolt and a nut; the connecting lug is fixed to the L-shaped plate, the connecting lug is provided with a through hole, the connecting bolt penetrates through the through hole, and the nut is threadedly connected to the connecting bolt.

4. The lightweight prefabricated utility tunnel according to claim 1, wherein, The reverse limiting assembly comprises a ratchet wheel, a second sliding block, a meshing tooth, a third spring and a first pull rod, the pressing plate is provided with a mounting groove and a second sliding groove, the ratchet wheel is arranged in the mounting groove and fixed to the second rotating shaft, the second sliding block is connected to the second sliding groove in a sliding mode, one end of the second sliding block is connected with the meshing tooth, the other end of the second sliding block is connected with the third spring and the first pull rod, and the third spring is arranged in the second sliding groove.

5. The lightweight prefabricated utility tunnel according to claim 1, wherein, The fixing assembly comprises a third sliding block, a second inserting rod, a fourth spring and a second pull rod, a third sliding groove is arranged on the vertical plate, the third sliding block is connected to the third sliding groove in a sliding mode, one end of the third sliding block is connected with the second inserting rod, the other end of the third sliding block is connected with the fourth spring and the second pull rod, the fourth spring is arranged in the third sliding groove, and the second inserting rod and the second pull rod both penetrate through the vertical plate.

6. The lightweight prefabricated utility tunnel according to claim 1, wherein, The pipe gallery body is connected with a plurality of supporting feet through bolts and nuts on both sides.

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