Quick-release formwork for pipe gallery
The quick-release formwork design solves the problem of cumbersome formwork support installation and dismantling in the construction of underground utility tunnels, enabling rapid splicing and dismantling of formwork, and improving construction efficiency and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 24TH BUREAU GROUP CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-12
AI Technical Summary
The existing construction of underground utility tunnels involves cumbersome and time-consuming formwork and support installation and dismantling, which is prone to causing construction cracks.
The quick-release template design includes components such as support templates, top templates, L-shaped positioning protrusions, connecting grooves, hydraulic telescopic rods, and positioning pins, enabling rapid assembly and disassembly of the templates. The support mechanism and positioning structure improve connection stability and disassembly efficiency.
It enables rapid assembly and disassembly of templates, reduces the occurrence of construction cracks, and improves construction efficiency and resource utilization.
Smart Images

Figure CN224227846U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipe gallery construction technology, and in particular to a quick-release formwork for pipe galleries. Background Technology
[0002] A utility tunnel is a building structure used for the centralized laying of large-scale pipeline systems. It typically employs an "open" shape design and is composed of steel or reinforced concrete structures such as columns, beams, and trusses. Depending on different needs, utility tunnels can be classified as single-story or multi-story, passable or impassable, above ground or underground. Underground integrated utility tunnels are a type of public infrastructure that houses two or more types of pipelines. They represent a future direction for urban lifeline infrastructure development. Existing construction formwork for urban underground integrated utility tunnels mainly includes steel formwork, wooden formwork, bamboo plywood, and aluminum formwork.
[0003] Currently, underground utility tunnels are typically constructed using the formwork support method. The side and top forms of the formwork trolley are used to support the side and top slabs of the tunnel after they have been poured, so that the side and top slabs can maintain better parallelism.
[0004] Before using the above-mentioned pipe gallery formwork, the supports need to be installed one by one. Traditional support installation and disassembly are relatively troublesome, requiring a lot of manpower and time, and are prone to defects such as construction cracks. Therefore, we have proposed a quick-release formwork for pipe galleries. Utility Model Content
[0005] This application proposes a quick-release template for utility tunnels to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application adopts the following technical solution:
[0007] A quick-release template for a pipe gallery includes two supporting templates arranged side by side. The top of each supporting template is provided with a top template and a step adapted to the top template. L-shaped positioning protrusions are fixedly connected to the upper and lower sides of the front side of each supporting template. A connecting groove is provided on the rear side of each supporting template, and the connecting groove is adapted to the L-shaped positioning protrusions. A protruding plate is fixedly connected to one end of the top template, and an inlay groove is provided at the other end of the top template, and the inlay groove is adapted to the protruding plate. A supporting mechanism is provided between the two supporting templates.
[0008] By adopting the above technical solution, the support templates on the same side are tightly connected by matching the connecting groove with the L-shaped positioning protrusion. The support template is placed on top of the two support templates and is fitted in a stepped manner. At the same time, the two adjacent top templates are fitted with the protruding plate through the inlay groove, thus tightly connecting them together. This avoids cracks during splicing to a certain extent and also ensures that the support templates and top templates can be spliced quickly.
[0009] In a preferred embodiment, the support mechanism includes a hydraulic telescopic rod, a base plate fixedly connected to the top of the hydraulic telescopic rod, a housing fixedly connected to the top of the base plate, a rotating shaft rotatably connected inside the housing, a worm gear fixedly installed in the middle of the rotating shaft, racks meshing with both the front and rear sides of the worm gear, a support block fixedly connected to the end of the racks passing through one side of the housing, a support plate fixedly connected to the top of the support block, a worm meshing with one side of the worm gear, and a handwheel fixedly connected to one end of the worm passing through the front side of the housing.
[0010] By adopting the above technical solution, the shell is lifted to a suitable height by a hydraulic telescopic rod. Then, by turning the handwheel, the handwheel drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The worm wheel then drives the two racks to move to both sides, thereby extending the support blocks and support plates at the ends of the racks to both sides. The extension length of the support plate can be adjusted according to the size of the top template. Adjustment and retraction are convenient, and the plate can be reused, thus improving resource utilization.
[0011] In a preferred embodiment, the inner walls of the front and rear sides of the housing are provided with sliding grooves, and a slider is fixedly connected to the side of the rack away from the worm gear, and the slider is slidably connected to the sliding groove.
[0012] By adopting the above technical solution, the slider and the groove slide together, which can limit the horizontal displacement of the rack, thereby ensuring the stability of the rack in horizontal movement.
[0013] In a preferred embodiment, the L-shaped positioning protrusion is provided with a first positioning hole, and both of the support templates are provided with a first positioning pin that matches the first positioning hole.
[0014] By adopting the above technical solution, the first positioning pin can be inserted into the first positioning hole to position and connect two adjacent support templates, and at the same time, it is easy to disassemble, which greatly improves the dismantling efficiency of the support templates.
[0015] In a preferred embodiment, the top of the step is provided with evenly distributed second positioning holes along the length direction, and both ends of the top of the top template are provided with second positioning pins that are adapted to the second positioning holes.
[0016] By adopting the above technical solution, the second positioning pin can be inserted into the second positioning hole to position and connect the top template and the support template, while facilitating disassembly and greatly improving the overall disassembly efficiency.
[0017] In a preferred embodiment, square holes adapted to the rack are provided on both sides of the housing.
[0018] By adopting the above technical solution, the rack can be moved freely during movement, preventing scratches.
[0019] The beneficial effects of this application are:
[0020] This quick-release template for pipe racks is designed with a support template, a top template, an L-shaped positioning protrusion, a connecting groove, a first positioning pin, a first positioning hole, a second positioning hole, and a second positioning pin. The support templates on the same side are tightly connected by fitting the connecting groove with the L-shaped positioning protrusion. The support template is placed on top of two support templates and fits in a stepped manner. At the same time, two adjacent top templates fit with the protruding plate through an inlay groove, thus connecting them tightly together. This helps to avoid cracks during splicing and ensures that the support templates and top templates can be quickly spliced and dismantled. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this application;
[0022] Figure 2 This is an internal structural diagram of the supporting structure of this application;
[0023] Figure 3 For the purposes of this application Figure 2 Enlarged diagram of point A in the diagram;
[0024] Figure 4 This is a schematic diagram of the back side of this application.
[0025] The following are the labeling elements in the diagram: 1. Support template; 2. Top template; 3. Step; 4. L-shaped positioning protrusion; 5. Connecting groove; 6. Extending plate; 7. Inlay groove; 8. Support mechanism; 81. Hydraulic telescopic rod; 82. Base plate; 83. Housing; 84. Rotating shaft; 85. Worm gear; 86. Rack; 87. Support block; 88. Support plate; 89. Worm; 810. Handwheel; 811. Slide groove; 812. Slider; 9. First positioning hole; 10. First positioning pin; 11. Second positioning hole; 12. Second positioning pin. Detailed Implementation
[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0027] Reference Figure 1-4A quick-release template for pipe gallery includes two parallel support templates 1. A top template 2 is provided on top of each support template 1. A step 3, adapted to the top template 2, is provided on the top of each support template 1. L-shaped positioning protrusions 4 are fixedly connected to the upper and lower sides of the front of each support template 1. A connecting groove 5 is provided on the rear side of each support template 1, adapted to the L-shaped positioning protrusions 4. A protruding plate 6 is fixedly connected to one end of the top template 2, and an inlay groove 7 is provided at the other end of the top template 2, adapted to the protruding plate 6. A support mechanism 8 is provided between the two support templates 1. Support templates 1 on the same side are tightly connected by the connecting groove 5 and the L-shaped positioning protrusions 4. The support template 1 is placed on top of the two support templates 1 and fitted together by the step 3. Simultaneously, two adjacent top templates 2 are fitted together by the inlay groove 7 and the protruding plate 6, thus tightly connecting them together. This avoids cracks during splicing to a certain extent and ensures that the support templates and top templates can be quickly spliced.
[0028] Reference Figure 2 and Figure 3 The support mechanism 8 includes a hydraulic telescopic rod 81, a base plate 82 fixedly connected to the top of the hydraulic telescopic rod 81, a housing 83 fixedly connected to the top of the base plate 82, a rotating shaft 84 rotatably connected inside the housing 83, a worm gear 85 fixedly mounted in the middle of the rotating shaft 84, racks 86 meshing with both the front and rear sides of the worm gear 85, a support block 87 fixedly connected to the end of the rack 86 through one side of the housing, a support plate 88 fixedly connected to the top of the support block 87, a worm 89 meshing with one side of the worm gear 85, and one end of the worm 89 penetrating the housing. A handwheel 810 is fixedly connected to the front side of the body 83. The housing is lifted to a suitable height by means of a hydraulic telescopic rod 81. Then, by rotating the handwheel 810, the handwheel 810 drives the worm gear 89 to rotate. The worm gear 89 then drives the worm wheel 85 to rotate. The worm wheel 85 then drives the two racks 86 to move to both sides respectively, thereby causing the support block 87 and support plate 88 at the ends of the racks 86 to extend to both sides. The extension length of the support plate 88 can be adjusted according to the size of the top template 2. Adjustment and retraction are convenient. It can be reused, which improves resource utilization.
[0029] Reference Figure 3 The inner walls of the front and rear sides of the housing 83 are provided with sliding grooves 811. A slider 812 is fixedly connected to the side of the rack 86 away from the worm gear 85. The slider 812 is slidably connected to the sliding groove 811. The slider 812 and the sliding groove 811 are slidably engaged, which can limit the horizontal displacement of the rack 86, thereby ensuring the stability of the rack 86 in horizontal movement.
[0030] Reference Figure 2 and Figure 4The L-shaped positioning protrusion 4 is provided with a first positioning hole 9, and both support templates 1 are provided with a first positioning pin 10 that is adapted to the first positioning hole 9. The first positioning pin 10 can be inserted into the first positioning hole 9 to position and connect the two adjacent support templates 1, and at the same time, it is easy to disassemble, which greatly improves the disassembly efficiency of the support template 1.
[0031] Reference Figure 1 The top of the step 3 has evenly distributed second positioning holes 11 along its length. The top two ends of the top template 2 are provided with second positioning pins 12 that are adapted to the second positioning holes 11. The second positioning pins 12 can be inserted into the second positioning holes 11 to position and connect the top template 2 and the support template 1, and at the same time facilitate disassembly, greatly improving the overall disassembly efficiency.
[0032] Reference Figure 3 The housing 83 has square holes on both sides that are adapted to the rack 86, so that the rack 86 can move freely and prevent scratches.
[0033] Working principle: First, the support template 1 on the same side is tightly connected to the L-shaped positioning protrusion 4 through the connecting groove 5. The first positioning pin 10 is inserted into the first positioning hole 9 to position and connect the two adjacent support templates 1, which is also easy to disassemble and greatly improves the disassembly efficiency of the support template 1. The support template 1 is placed on top of the two support templates 1 and fitted together through the step 3. The second positioning pin 12 is inserted into the second positioning hole 11 to position and connect the top template 2 and the support template 1, which is also easy to disassemble and greatly improves the overall disassembly efficiency. At the same time, the two adjacent top templates 2 are fitted together with the protruding plate 6 through the inlay groove 7, which is tightly connected together and thus avoids cracks during splicing to a certain extent, and also ensures that the support template and the top template can be spliced quickly.
[0034] The housing is lifted to a suitable height by means of hydraulic telescopic rod 81. Then, by turning handwheel 810, handwheel 810 drives worm gear 89 to rotate, worm gear 89 drives worm wheel 85 to rotate, and worm wheel 85 drives two racks 86 to move to both sides respectively, thereby causing the support block 87 and support plate 88 at the end of rack 86 to extend to both sides. The extension length of support plate 88 can be adjusted according to the size of top template 2. Adjustment and retraction are convenient, and it can be reused, improving resource utilization.
[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and the inventive concept of this application, should be included within the scope of protection of this application.
Claims
1. A quick-release formwork for a utility tunnel, comprising two supporting formworks (1) arranged side by side, characterized in that, The top of the support template (1) is provided with a top template (2), and the top of the support template (1) is provided with a step (3) that is adapted to the top template (2). The front side of the support template (1) is fixedly connected with L-shaped positioning protrusions (4) at both the top and bottom. The rear side of the support template (1) is provided with a connecting groove (5), which is adapted to the L-shaped positioning protrusions (4). One end of the top template (2) is fixedly connected with a protruding plate (6), and the other end of the top template (2) is provided with an inlay groove (7), which is adapted to the protruding plate (6). A support mechanism (8) is provided between the two support templates (1).
2. The quick-release template for pipe racks according to claim 1, characterized in that, The support mechanism (8) includes a hydraulic telescopic rod (81), a base plate (82) is fixedly connected to the top of the hydraulic telescopic rod (81), a housing (83) is fixedly connected to the top of the base plate (82), a rotating shaft (84) is rotatably connected inside the housing (83), a worm gear (85) is fixedly installed in the middle of the rotating shaft (84), a rack (86) is meshed on both the front and rear sides of the worm gear (85), the end of the rack (86) passes through one side of the housing and is fixedly connected to a support block (87), a support plate (88) is fixedly connected to the top of the support block (87), a worm (89) is meshed on one side of the worm gear (85), and one end of the worm (89) passes through the front side of the housing (83) and is fixedly connected to a handwheel (810).
3. The quick-release template for pipe racks according to claim 2, characterized in that, The inner walls of the front and rear sides of the housing (83) are provided with sliding grooves (811), and a slider (812) is fixedly connected to the side of the rack (86) away from the worm gear (85). The slider (812) is slidably connected to the sliding groove (811).
4. A quick-release template for pipe racks according to claim 1, characterized in that, The L-shaped positioning protrusion (4) is provided with a first positioning hole (9), and both of the support templates (1) are provided with a first positioning pin (10) that is adapted to the first positioning hole (9).
5. A quick-release template for pipe racks according to claim 1, characterized in that, The top of the step (3) is provided with evenly distributed second positioning holes (11) along the length direction, and the top two ends of the top template (2) are provided with second positioning pins (12) that are adapted to the second positioning holes (11).
6. A quick-release template for pipe racks according to claim 2, characterized in that, The housing (83) has square holes on both sides that are adapted to the rack (86).