An assembled prefabricated valve well

Abstract

The utility model belongs to valve well technical field, especially relate to a kind of assembly type prefabricated valve well.The lower well body and the upper well body in the assembly type prefabricated valve well are made into prefabricated mode, when the construction of valve well is carried out, lower well body and upper well body can be transported to construction site, and lower well body and upper well body are in turn hoisted and set in foundation pit, and the axis of upper well body coincides with the axis of communicating port, first sealing block is clamped in first sealing groove, and the construction of valve well is completed;The whole construction process reduces the reinforcing bandaging, formwork, concrete warehouse pouring and maintenance and other procedures, to reduce the workload and labor intensity of valve well construction, and the construction process is not affected by environment and weather, can effectively improve construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of valve well technology, and specifically relates to an assembled prefabricated valve well. Background Technology

[0002] During the installation of PCCP pipelines, the construction of numerous valve wells along the pipeline route is a key factor affecting the quality and progress of PCCP pipeline construction.

[0003] Currently, valve wells are constructed using the cast-in-place method, which involves manual on-site operations such as material layout, rebar tying, formwork erection, concrete pouring, and curing to complete the valve well construction. This method generally suffers from numerous construction procedures and a large workload, and is easily affected by environmental and weather conditions, impacting the construction progress of the valve wells. Furthermore, in the case of cast-in-place construction, the quality of concrete is not easily controlled, which will lead to rework to a certain extent, resulting in increased construction costs and extended construction time, seriously affecting the construction quality and progress of PCCP pipelines. Utility Model Content

[0004] This utility model provides a prefabricated assembly valve well to solve the technical problems of multiple construction procedures, large construction interference, and large workload in the construction of valve wells using the existing cast-in-place construction method.

[0005] To solve the above problems, this utility model is achieved through the following technical solution: A prefabricated valve well, comprising a prefabricated lower well body and an upper well body; The lower well body is a box structure. A connecting opening is provided at the top of the lower well body. A first sealing groove is provided at the top of the lower well body. The first sealing groove is arranged circumferentially around the connecting opening. The upper well body is a tubular structure with openings at both ends. The cross-sectional shape of the bottom of the upper well body is adapted to the shape of the connecting port. The bottom of the upper well body is provided with a first sealing block that matches the first sealing groove. The upper well body is located on top of the lower well body, and the axis of the upper well body coincides with the axis of the connecting port. The first sealing block is engaged in the first sealing groove.

[0006] To better realize this utility model, the above structure is further optimized. A first slot is provided on the first sealing block. The first slot is arranged around the opening at the bottom of the upper well body, and a rubber sealing ring is provided in the first slot.

[0007] To better realize this utility model, further optimizations are made to the above structure, wherein the upper well body includes an upper well section; The upper well section is a tubular structure with openings at both ends; the first sealing block is located at the bottom of the upper well section; the upper well section is located at the top of the lower well body.

[0008] To better realize this utility model, further optimizations are made to the above structure, wherein the upper well body includes an upper well section and an intermediate well section; Both the upper well section and the middle well section are tubular structures with openings at both ends. The first sealing block is located at the bottom of the middle well section. The middle well section and the upper well section are stacked sequentially from bottom to top on the top of the lower well body.

[0009] To better realize this utility model, further optimization is made to the above structure. A second sealing groove is provided at the top of the intermediate well section, and the second sealing groove is arranged around the opening at the top of the intermediate well section. The bottom of the upper well section is provided with a second sealing block that matches the second sealing groove; The upper well section is stacked on top of the middle well section, and the second sealing block is engaged in the second sealing groove.

[0010] To better realize this utility model, the above structure is further optimized. A second groove is provided on the second sealing block. The second groove is arranged around the opening at the bottom of the upper well section, and a rubber sealing ring is provided in the second groove.

[0011] To better realize this utility model, further optimizations are made to the above structure, and the assembled prefabricated valve well also includes a water collection tank and a water storage tank; The water collection trough has a ring-shaped structure, and the inner diameter of the water collection trough matches the outer diameter of the upper well body. The water collection trough is fitted onto the upper well body, and the opening of the water collection trough and the top of the upper well body are on the same plane. The water storage tank is located below the water collection tank, and the water storage tank is connected to the water collection tank through a pipe.

[0012] To better realize this utility model, further optimizations are made to the above structure, and the prefabricated valve well also includes a connecting pipe; A connection port is provided on the side wall of the lower well body, and one end of the connecting pipe is connected to the interior of the lower well body through the connection port.

[0013] Compared with the prior art, this utility model has the following advantages: In the prefabricated valve well provided by this utility model, both the lower and upper well bodies are prefabricated. During the construction of the valve well, the lower and upper well bodies can be transported to the construction site and then hoisted into the foundation pit in sequence, with the axis of the upper well body coinciding with the axis of the connecting port. The first sealing block is then inserted into the first sealing groove, completing the construction of the valve well. The entire construction process reduces the procedures of steel bar binding, formwork, concrete pouring, and curing, thereby reducing the workload and labor intensity of valve well construction. Furthermore, the construction process is not affected by the environment or weather, effectively improving construction efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a prefabricated valve well according to this utility model.

[0016] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0017] Figure 3 This is a cross-sectional view of the lower well body of a prefabricated valve well according to this utility model.

[0018] Figure 4 This is a cross-sectional view of the intermediate well section in a prefabricated assembled valve well according to this utility model.

[0019] Figure 5 This is a cross-sectional view of the upper section of a prefabricated valve well according to this utility model.

[0020] In the picture: 1. Lower well body; 11. First sealing groove; 2. Upper well body; 21. Intermediate well section; 211. First sealing block; 2111. First slot; 212. Second sealing groove; 22. Upper well section; 221. Second sealing block; 2211. Second slot; 3. Rubber sealing ring; 4. Water collection tank; 5. Water storage tank; 6. Pipelines; 7. Connecting pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In the embodiments of this application, such as Figures 1 to 5 As shown, the prefabricated valve well includes a prefabricated lower well body 1 and an upper well body 2; wherein, The lower well body 1 is a box structure. A communication port is opened at the top of the lower well body 1. A first sealing groove 11 is provided at the top of the lower well body 1. The first sealing groove 11 is arranged circumferentially around the communication port. The upper well body 2 is a tubular structure with openings at both ends. The cross-sectional shape of the bottom of the upper well body 2 is adapted to the shape of the connecting port. The bottom of the upper well body 2 is provided with a first sealing block 211 that matches the first sealing groove 11. The upper well body 2 is located on top of the lower well body 1, and the axis of the upper well body 2 coincides with the axis of the connecting port. The first sealing block 211 is engaged in the first sealing groove 11.

[0025] The construction of this prefabricated valve well can be carried out through the following steps: Foundation pit excavation: As the PCCP pipeline installation progresses and considering installation deviations, the location of the valve well is recalculated and determined. The valve well foundation pit is excavated according to the construction drawings to avoid over-excavation or under-excavation. The bearing capacity of the foundation is consistent with that of the adjacent pipeline and meets the specifications. For areas with high groundwater levels, the method of using pipe wells in combination with open drainage is adopted in advance to lower the water level to more than 0.5m above the bottom of the foundation pit until the valve well is installed and backfilled. Contact mortar laying: After the foundation pit passes the acceptance inspection, the concrete for the foundation layer and the mortar layer are mixed on site according to the design thickness of the foundation layer and the thickness of the contact mortar layer. The concrete is then laid and smoothed manually using mortar buckets. Measurement and layout: The workers used a level and spirit level to mark the prefabricated well edge line and center line according to the design drawings and the size of the cross-section of the lower well body 1, and marked them with lime. Prefabricated component transportation: The precast components (lower well body 1 and upper well body 2) are oversized, overweight, and overheavy. They will be transported to the construction site by a professional transportation unit using transport vehicles. During transportation, measures will be taken to stabilize the lower well body 1 and upper well body 2 according to their dimensions and structure. Flexible gaskets can be used to fill the contact area between the lower well body 1 and upper well body 2 to prevent damage due to collision. Hoisting of the lower well body 1: To ensure installation quality, the bearing capacity of the base and the contact mortar were further inspected before the lower well body 1 was hoisted. After the inspection is completed, according to the weight and shape of the lower well body 1, the matching lifting tools are used, and the crawler crane is used to lift the lower well body 1. The guy ropes are tied to the bottom of the lower well body 1, and the rotation of the lower well body 1 is manually controlled to ensure that the lower well body 1 is stably positioned. Hoisting of Upper Shaft Body 2: After the lower well body 1 is installed and inspected, the upper well body 2 is hoisted as needed. First, contact mortar is laid on the top surface of the lower well body 1. Then, crawler crane is used to hoist the upper well body 2 to the air above the lower well body 1. The opening at the bottom of the upper well body 2 is aligned with the connecting port. The first sealing block 211 on the upper well body 2 is stably embedded into the first sealing groove 11 of the lower well body 1 by using the self-weight of the upper well body 2 and manual fine adjustment (adjusting the direction) to maintain the initial stability of the upper well body 2 and the lower well body 1, and the assembly construction is completed. Waterproofing construction at the joint between upper well body 2 and lower well body 1: The joint between the upper well body 2 and the lower well body 1 is first smoothed with cement mortar. After the surface dries, waterproofing is carried out using mortar resin and glass cloth. The next step is carried out 4 hours after the construction is completed. The first sealing block 211 and the first sealing groove 11 themselves constitute a waterproof barrier and form a composite waterproof system with mortar resin and glass cloth to ensure the sealing of the joint between the upper well body 2 and the lower well body 1. Backfill: The backfill material is transported to the backfilling area of ​​the foundation pit using a backhoe. A vibratory roller is then used to compact the material in layers according to the test compaction parameters. During the compaction process, the workers use the test pit water filling method to test the compaction degree of the soil. Once the test is qualified, the construction of the prefabricated valve well is completed.

[0026] The entire construction process reduces the number of steps such as rebar tying, formwork, concrete pouring, and curing, thereby reducing the workload and labor intensity of valve well construction. Moreover, the construction process is not affected by the environment and weather, and can be carried out at night and in rainy weather to improve construction efficiency.

[0027] In some embodiments, the first sealing block 211 is provided with a first slot 2111, the first slot 2111 is arranged around the opening at the bottom of the upper well body 2, and a rubber sealing ring 3 is provided in the first slot 2111, the sealing performance of the joint between the upper well body 2 and the lower well body 1 is further improved by the rubber sealing ring 3.

[0028] It is worth noting that the rubber sealing ring 3 mentioned above is a water-swellable rubber sealing ring, which is a waterproof seal with special water absorption and expansion properties. When it comes into contact with water, it can quickly absorb water and expand, thereby tightly filling the joint (the joint between the upper well body 2 and the lower well body 1) to achieve the purpose of waterproof sealing. Water-swellable rubber sealing rings are a current technology. Due to their high expansion rate and ease of use, they are widely used in various construction and water conservancy projects for waterproofing joints in structures such as bridges, tunnels, and subways. In some embodiments, the aforementioned upper wellbore 2 includes an upper well section 22; wherein, The upper well section 22 is a tubular structure with openings at both ends, and the first sealing block 211 is set at the bottom of the upper well section 22; the upper well section 22 can be directly set at the top of the lower well body 1 to improve the construction efficiency of the prefabricated valve well.

[0029] In some embodiments, the upper wellbore 2 includes an upper wellbore section 22 and an intermediate wellbore section 21; wherein, Both the upper well section 22 and the intermediate well section 21 are tubular structures with open ends. The first sealing block 211 is located at the bottom of the intermediate well section 21. The intermediate well section 21 and the upper well section 22 are stacked sequentially from bottom to top on the top of the lower well body 1. In this embodiment, the number of intermediate well sections 21 can be increased or decreased according to requirements (preset height of the valve well). By increasing or decreasing the number of intermediate well sections 21, or by selecting intermediate well sections 21 of different heights, the total height of the entire valve well can be flexibly adjusted like building blocks, realizing rapid on-site customization of the height, thereby further improving the construction efficiency of this prefabricated valve well.

[0030] In some embodiments, a second sealing groove 212 is provided on the top of the intermediate well section 21, and the second sealing groove 212 is arranged around the opening on the top of the intermediate well section 21. The bottom of the upper well section 22 is provided with a second sealing block 221 that matches the second sealing groove 212; The upper well section 22 is stacked on top of the middle well section 21, and the second sealing block 221 is engaged in the second sealing groove 212 so that the upper well section 22 can be stably stacked on the middle well section 21. The joint between the upper well section 22 and the middle well section 21 is also sealed in the above manner to ensure the sealing of the joint between the upper well section 22 and the middle well section 21.

[0031] Preferably, the second sealing block 221 is provided with a second groove 2211, which is arranged around the opening at the bottom of the upper well section 22. A rubber sealing ring 3 is provided in the second groove 2211. The rubber sealing ring 3 is also a water-swellable rubber sealing ring to further ensure the sealing of the joint between the upper well section 22 and the intermediate well section 21.

[0032] In some embodiments, the prefabricated valve well also includes a water collection tank 4 and a water storage tank 5; The water collection trough 4 is a ring structure. The inner diameter of the water collection trough 4 matches the outer diameter of the upper well body 2. The water collection trough 4 is fitted onto the upper well body 2, and the opening of the water collection trough 4 is on the same plane as the top of the upper well body 2. The water storage tank 5 is located below the water collection tank 4, and the water storage tank 5 is connected to the water collection tank 4 through the pipe 6; Water can be collected in the collection tank 4 and flow through the pipe 6 to the storage tank 5, thus preventing the structure of the prefabricated valve well from being affected by rainwater over a long period of time.

[0033] In some embodiments, the prefabricated valve well further includes a connecting pipe 7; wherein... A connection port is provided on the side wall of the lower well body 1. One end of the connecting pipe 7 is connected to the interior of the lower well body 1 through the connection port. Two adjacent prefabricated valve wells can be connected through the connecting pipe 7 to form part of the PCCP pipeline.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A prefabricated, assembled valve well, characterized in that: It includes a prefabricated lower well body (1) and upper well body (2); The lower well body (1) is a box structure. A connecting port is provided at the top of the lower well body (1). A first sealing groove (11) is provided at the top of the lower well body (1). The first sealing groove (11) is arranged around the circumference of the connecting port. The upper well body (2) is a tubular structure with open ends. The cross-sectional shape of the bottom of the upper well body (2) is adapted to the shape of the connecting port. The bottom of the upper well body (2) is provided with a first sealing block (211) that matches the first sealing groove (11). The upper well body (2) is located on top of the lower well body (1), and the axis of the upper well body (2) coincides with the axis of the connecting port. The first sealing block (211) is stuck in the first sealing groove (11).

2. The prefabricated valve well according to claim 1, characterized in that: The first sealing block (211) is provided with a first slot (2111), which is arranged around the opening at the bottom of the upper well body (2), and a rubber sealing ring (3) is provided in the first slot (2111).

3. The prefabricated valve well according to claim 1, characterized in that: The upper well body (2) includes an upper well section (22); The upper well section (22) is a tubular structure with openings at both ends; the first sealing block (211) is located at the bottom of the upper well section (22); the upper well section (22) is located at the top of the lower well body (1).

4. The prefabricated valve well according to claim 1, characterized in that: The upper well body (2) includes an upper well section (22) and an intermediate well section (21); Both the upper well section (22) and the middle well section (21) are tubular structures with open ends. The first sealing block (211) is located at the bottom of the middle well section (21). The middle well section (21) and the upper well section (22) are stacked from bottom to top on the top of the lower well body (1).

5. The prefabricated valve well according to claim 4, characterized in that: The top of the intermediate well section (21) is provided with a second sealing groove (212), which is arranged around the opening at the top of the intermediate well section (21); The bottom of the upper well section (22) is provided with a second sealing block (221) that matches the second sealing groove (212); The upper well section (22) is stacked on top of the middle well section (21), and the second sealing block (221) is engaged in the second sealing groove (212).

6. The prefabricated valve well according to claim 5, characterized in that: The second sealing block (221) is provided with a second slot (2211), which is arranged around the opening at the bottom of the upper well section (22), and a rubber sealing ring (3) is provided in the second slot (2211).

7. The prefabricated valve well according to any one of claims 1 to 6, characterized in that: It also includes a water collection tank (4) and a water storage tank (5); The water collection trough (4) is a ring structure. The inner diameter of the water collection trough (4) matches the outer diameter of the upper well body (2). The water collection trough (4) is fitted on the upper well body (2), and the opening of the water collection trough (4) is on the same plane as the top of the upper well body (2). The water storage tank (5) is located below the water collection tank (4), and the water storage tank (5) is connected to the water collection tank (4) through the pipe (6).

8. The prefabricated valve well according to claim 1, characterized in that: It also includes the connecting pipe (7); A connection port is provided on the side wall of the lower well body (1), and one end of the connecting pipe (7) is connected to the interior of the lower well body (1) through the connection port.

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