A square precast inspection well mold
By designing a split casting mold assembly and a linkage assembly, the problem of uneven concrete accumulation was solved, enabling high-quality molding and convenient disassembly of the inspection well.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HAINAYUAN TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-19
AI Technical Summary
Existing square precast manhole molds are prone to uneven accumulation during concrete pouring, resulting in substandard manhole quality.
It adopts a split casting mold assembly, combined with linkage components and a suspended ball structure. The vibration of the vibrator assists in the uniformity of the concrete, and the split design reduces the difficulty of disassembly.
It improves the uniformity of concrete filling, reduces the difficulty of demolding, and ensures the quality of inspection wells meets standards.
Smart Images

Figure CN224374378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole mold technology, and in particular to a square prefabricated manhole mold. Background Technology
[0002] Square inspection wells are rectangular or square inspection facilities in underground pipeline systems. They are mainly used for pipeline connection, inspection, dredging, and maintenance, and are commonly found in municipal drainage, water supply, power and communication network projects. Their design is characterized by a square structure, making them suitable for specific space constraints or functional requirements, while reducing the time and difficulty of using inspection wells. The well structure is often prefabricated using molds and then transported to the site for installation.
[0003] A square precast manhole mold with Chinese patent publication number CN221622541U is described in its specification. According to the specification, the device mainly adds concrete into the upper mold through a feeding hopper. The upper mold is in a relatively closed state. Therefore, when the concrete is poured, the concrete entering the upper mold tends to accumulate on one side of the upper mold. This uneven concrete distribution can easily lead to substandard quality of the manhole.
[0004] Therefore, it is necessary to provide a new square prefabricated manhole mold to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a square prefabricated inspection well mold.
[0006] The square prefabricated manhole mold provided by this utility model includes: a base plate, on which a casting mold assembly is provided;
[0007] The casting mold assembly includes multiple outer casting molds and inner casting molds. The side walls of both the outer casting molds and the inner casting molds are provided with mounting grooves. A sealing side plate is inserted into the mounting groove, and a linkage component is provided on the sealing side plate.
[0008] The linkage component includes a baffle frame, which is fixedly installed on the sealing side plate. A suspension spring is fixedly installed on the inner top of the baffle frame, and a suspension ball is fixedly installed on the bottom end of the suspension spring. A rubber sleeve is fitted on the outer wall of the suspension ball.
[0009] Preferably, the bottom and top of the external casting mold are fixedly installed with external mold edges, the lowermost external mold edge is fixedly connected to the base plate by bolts, and the external mold edges between two adjacent external casting molds are fixedly connected by bolts.
[0010] Preferably, the bottom and top of the inner casting mold are fixedly installed with inner mold edges, the lowest inner mold edge is fixedly connected to the base plate by bolts, and the outer mold edges between two adjacent inner casting molds are fixedly connected by bolts.
[0011] Preferably, a support frame is fixedly installed on both the outer wall of the outer casting mold and the inner wall of the inner casting mold. The support frame has multiple evenly distributed hanging holes and through holes inside, and a threaded hole is opened in the center of the support frame.
[0012] Preferably, the side wall of the sealing side plate is provided with a rotating rod that is rotatably connected. The outer wall of the rotating rod is threadedly connected to the inner wall of the threaded hole, and a driving block is fixedly installed on the side end of the rotating rod away from the sealing side plate.
[0013] Preferably, a plug is fixedly installed on the side wall of the sealing side plate, and the outer wall of the plug abuts against and is slidably connected to the inner wall of the through hole.
[0014] Preferably, a support frame is fixedly installed on the side wall of the support frame, and two sets of insertion holes are opened inside the support frame. A slidably connected baffle is inserted into the insertion hole, and a magnetic plate is fixedly installed on the top of the baffle, and the bottom of the magnetic plate is attracted to the top of the support frame.
[0015] Compared with related technologies, the square prefabricated inspection well mold provided by this utility model has the following beneficial effects:
[0016] 1. Through the setting of the linkage component, this utility model, during use, after the concrete is poured, when the concrete is vibrated and mixed by an external vibrator, the generated vibration force will be transmitted to the linkage component on the casting mold assembly. At this time, the suspended ball in the linkage component swings due to the vibration force and strikes the outer casting mold and the inner casting mold, thereby helping to increase the vibration effect of the contact part between the casting mold assembly and the concrete, thus improving the uniformity of the filling of the internal concrete.
[0017] 2. By designing the outer casting mold and inner casting mold in the casting mold assembly as separate parts, multiple outer casting molds and inner casting molds can be separated during disassembly, allowing workers to disassemble them one by one. Compared with an integrated disassembly structure, the resistance of disassembling a single part is smaller, thereby reducing the difficulty of demolding. Attached Figure Description
[0018] Figure 1 A schematic diagram of a preferred embodiment of the square prefabricated inspection well mold provided by this utility model;
[0019] Figure 2 for Figure 1 The diagram shows the structure of the sealing side plate, support frame, and linkage assembly.
[0020] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the linkage component shown.
[0021] Figure 4 for Figure 2 The diagram shows the structure of the sealing side plate and its components;
[0022] Figure 5 for Figure 2 A schematic diagram of the support frame and its components shown;
[0023] Figure 6 for Figure 1 The diagram shows the structure of the base plate and its components.
[0024] Labels in the diagram: 1. Base plate; 2. Casting mold assembly; 21. External casting mold; 211. External mold edge; 22. Internal casting mold; 221. Internal mold edge; 23. Mounting groove; 3. Sealing side plate; 31. Insert rod; 32. Rotating rod; 33. Drive block; 4. Support frame; 401. Hanging hole; 402. Through hole; 403. Threaded hole; 42. Support frame; 421. Insert hole; 43. Baffle; 431. Magnetic plate; 5. Linkage assembly; 51. Baffle frame; 52. Suspension spring; 53. Suspension ball. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0027] Please see Figures 1 to 6 The present invention provides a square prefabricated inspection well mold, which includes a base plate 1.
[0028] In the embodiments of this utility model, please refer to Figures 1 to 6 The base plate 1 is provided with a casting mold assembly 2;
[0029] The casting mold assembly 2 includes multiple outer casting molds 21 and inner casting molds 22. The side walls of the outer casting molds 21 and inner casting molds 22 are provided with mounting grooves 23. A sealing side plate 3 is inserted into the mounting groove 23, and a linkage assembly 5 is provided on the sealing side plate 3. The linkage assembly 5 includes a baffle frame 51, which is fixedly installed on the sealing side plate 3. A suspension spring 52 is fixedly installed on the inner top of the baffle frame 51, and a suspension ball 53 is fixedly installed on the bottom end of the suspension spring 52. A rubber sleeve is fitted on the outer wall of the suspension ball 53.
[0030] It should be noted that: through the setting of the linkage component 5, during the use of the concrete, after the concrete is poured, when the concrete is vibrated and compacted by an external vibrator, the resulting vibration force will be transmitted to the linkage component 5 on the casting mold component 2. At this time, the suspended ball 53 in the linkage component 5, which swings due to the vibration force, will strike the outer casting mold 21 and the inner casting mold 22, thereby helping to increase the vibration effect of the contact part between the casting mold component 2 and the concrete, thus improving the uniformity of the filling of the internal concrete.
[0031] In the embodiments of this utility model, please refer to Figures 1 to 6 The bottom and top of the outer casting mold 21 are both fixedly installed with outer mold edges 211. The bottommost outer mold edge 211 is fixedly connected to the base plate 1 by bolts, and the outer mold edges 211 between two adjacent outer casting molds 21 are fixedly connected by bolts. The bottom and top of the inner casting mold 22 are both fixedly installed with inner mold edges 221. The bottommost inner mold edge 221 is fixedly connected to the base plate 1 by bolts, and the outer mold edges 211 between two adjacent inner casting molds 22 are fixedly connected by bolts.
[0032] It should be noted that by setting the outer casting mold 21 and inner casting mold 22 in the casting mold assembly 2 as separate units, multiple outer casting molds 21 and inner casting molds 22 can be separated during disassembly after the product is cast. This allows workers to disassemble them one by one. Compared with an integrated disassembly structure, the resistance of disassembly is smaller, which reduces the difficulty of demolding.
[0033] In the embodiments of this utility model, please refer to Figures 1 to 6 Support frames 4 are fixedly installed on the outer wall of the outer casting mold 21 and the inner wall of the inner casting mold 22. The support frame 4 has multiple evenly distributed hanging holes 401 and through holes 402 inside, and a threaded hole 403 is opened in the center of the support frame 4. A rotating rod 32 is provided on the side wall of the sealing side plate 3. The outer wall of the rotating rod 32 is threadedly connected to the inner wall of the threaded hole 403. A driving block 33 is fixedly installed on the side end of the rotating rod 32 away from the sealing side plate 3. An insert rod 31 is fixedly installed on the side wall of the sealing side plate 3. The outer wall of the insert rod 31 abuts against and slides with the inner wall of the through hole 402.
[0034] It should be noted that by connecting the rotating rod 32 with the threaded hole 403, the rotation of the rotating rod 32 can be controlled during use to move the sealing side plate 3, thus allowing for easy installation or removal of the sealing side plate 3 as needed. Furthermore, by independently removing the sealing side plate 3, after the product casting is completed, the contact area between the outer and inner casting molds 21 and 22 and the outer wall of the product can be reduced, thereby reducing the friction during the subsequent lifting and disassembly of the outer and inner casting molds 21 and 22.
[0035] In the embodiments of this utility model, please refer to Figures 1 to 6 A support frame 42 is fixedly installed on the side wall of the support frame 4. Two sets of insertion holes 421 are opened inside the support frame 42. A slidingly connected baffle 43 is inserted into the insertion hole 421. A magnetic plate 431 is fixedly installed on the top of the baffle 43, and the bottom of the magnetic plate 431 is attracted to the top of the support frame 42.
[0036] It should be noted that: by setting the baffle 43, after the sealing side plate 3 is installed, the baffle 43 can be inserted into the insertion hole 421 of the sealing side plate 3, so that the outer wall of the baffle 43 abuts against the side wall of the drive block 33 at the end of the rotating rod 32, thereby preventing the sealing side plate 3 from falling off from the installation groove 23 during use.
[0037] The working principle of the square prefabricated inspection well mold provided by this utility model is as follows:
[0038] When using this device, the staff can first take out the corresponding inner casting mold 22 and outer casting mold 21 as needed, and then assemble multiple outer casting molds 21 and inner casting molds 22 in sequence with bolts to form a complete outer mold and inner mold. The assembled outer mold and inner mold are then fixed to the base plate 1 with bolts.
[0039] After the product assembly is completed, concrete can be added between the outer casting mold 21 and the inner casting mold 22. During the concrete pouring process, when the workers take out the concrete vibrator to tamp the concrete to improve its uniformity, the resulting vibration force can be transmitted to the outer casting mold 21 and the inner casting mold 22. The vibration force transmitted to the outer casting mold 21 and the inner casting mold 22 will cause the suspension ball 53 at the bottom of the suspension spring 52 in the linkage component 5 to swing. The swinging suspension ball 53 abuts against the baffle frame 51 and the corresponding outer casting mold 21 and inner casting mold 22, thereby hammering their side walls. This can help increase the vibration force on the side walls of the outer casting mold 21 and the inner casting mold 22, and further help improve the filling effect of the concrete gaps at the contact points with the outer casting mold 21 and the inner casting mold 22. Therefore, the side walls of the finished product after pouring are smoother and the presence of air bubbles is reduced.
[0040] After the product casting is completed, when it is necessary to disassemble the outer casting mold 21 and the inner casting mold 22, the bolts connecting the corresponding outer casting mold 21 and inner casting mold 22 can be unscrewed to disconnect them. Then, the baffle 43 can be taken out from the insertion hole 421 on the side near the rotating rod 32 and inserted into the insertion hole 421 on the side away from the rotating rod 32, so that the baffle 43 contacts the limit block 33 at the end of the rotating rod 32, which makes it easier for the staff to control the rotating rod 32 to rotate. At this time, the rotating rod 32 will drive the sealing side plate 3 to move out of the mounting groove 23 in the corresponding outer casting mold 21 and inner casting mold 22, so that it is separated from the cast product. Then, when the outer casting mold 21 and inner casting mold 22 are pulled out one by one in the later stage, the resistance during the extraction and disassembly can be reduced, thus making the disassembly of this device more convenient in the later stage.
[0041] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0042] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A square prefabricated inspection well mold, characterized in that, include: A base plate (1) is provided with a casting mold assembly (2); The casting mold assembly (2) includes multiple outer casting molds (21) and inner casting molds (22). The side walls of the outer casting molds (21) and the inner casting molds (22) are provided with mounting grooves (23). A sealing side plate (3) is inserted into the mounting groove (23), and a linkage assembly (5) is provided on the sealing side plate (3). The linkage component (5) includes a baffle (51), which is fixedly installed on the sealing side plate (3). A suspension spring (52) is fixedly installed on the inner top of the baffle (51), and a suspension ball (53) is fixedly installed on the bottom end of the suspension spring (52). A rubber sleeve is provided on the outer wall of the suspension ball (53).
2. The square prefabricated inspection well mold according to claim 1, characterized in that, The bottom and top of the external casting mold (21) are fixedly installed with external mold edges (211). The lowest external mold edge (211) is fixedly connected to the base plate (1) by bolts, and the external mold edges (211) between two adjacent external casting molds (21) are fixedly connected by bolts.
3. The square prefabricated inspection well mold according to claim 2, characterized in that, The bottom and top of the inner casting mold (22) are fixedly installed with inner mold edges (221), the bottom inner mold edge (221) is fixedly connected to the base plate (1) by bolts, and the outer mold edges (211) between two adjacent inner casting molds (22) are fixedly connected by bolts.
4. The square prefabricated inspection well mold according to claim 3, characterized in that, Support frames (4) are fixedly installed on the outer wall of the outer casting mold (21) and the inner wall of the inner casting mold (22). The support frame (4) has multiple evenly distributed hanging holes (401) and through holes (402) inside, and a threaded hole (403) is opened in the center inside the support frame (4).
5. The square prefabricated inspection well mold according to claim 1, characterized in that, The side wall of the sealing side plate (3) is provided with a rotating rod (32) that is rotatably connected. The outer wall of the rotating rod (32) is threadedly connected to the inner wall of the threaded hole (403), and a driving block (33) is fixedly installed on the side end of the rotating rod (32) away from the sealing side plate (3).
6. The square prefabricated inspection well mold according to claim 5, characterized in that, A plug rod (31) is fixedly installed on the side wall of the sealing side plate (3), and the outer wall of the plug rod (31) abuts against and slides with the inner wall of the through hole (402).
7. The square prefabricated inspection well mold according to claim 4, characterized in that, A support frame (42) is fixedly installed on the side wall of the support frame (4). Two sets of insertion holes (421) are opened inside the support frame (42). A slidingly connected baffle (43) is inserted into the insertion hole (421). A magnetic plate (431) is fixedly installed on the top of the baffle (43), and the bottom of the magnetic plate (431) is attracted to the top of the support frame (42).