Inspection well mold facilitating separation of cement component
By designing inner and outer molds and utilizing the rotation of the drive shaft to shrink the template, the problem of slow demolding speed of cement components is solved, achieving a highly efficient demolding process and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG RENHE MOLD MASCH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
In existing technologies, the demolding speed of cement components in manhole molds is slow, resulting in low production efficiency.
It adopts an inner mold and an outer mold structure. The inner mold consists of multiple templates. Through the design of limiting sliding parts, drive shaft and support parts, the drive shaft rotates to drive the template to shrink, so as to achieve efficient demolding of cement components.
This enabled rapid demolding of cement components and improved production efficiency.
Smart Images

Figure CN224158588U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a manhole mold that facilitates the detachment of cement components. Background Technology
[0002] The manhole mold consists of an outer mold and an inner mold, both of which are made of multiple metals. Cement is then poured between the outer and inner molds, allowed to cool, and then the mold is opened to complete the production of the cement component.
[0003] In order to facilitate the opening of the outer mold and to more efficiently detach the cement component from the inner mold, we designed a manhole mold that detaches from the cement component. Utility Model Content
[0004] The purpose of this invention is to address the following shortcomings in the prior art: slow demolding of cement components in the manhole inner mold, and to propose a manhole mold that facilitates the removal of cement components.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A manhole mold for facilitating the detachment of cement components includes an inner mold and an outer mold. The inner mold includes two template 1s and two template 2s, which are arranged opposite each other. A base plate is installed on the bottom side of the inner mold via a limiting sliding member. Each template 2 includes two half-templates. One half-template is welded with multiple first fixing plates perpendicularly connected to it. The first fixing plate is bolted to a first connecting plate. The other half-template is welded with multiple second fixing plates perpendicularly connected to it. The second fixing plates are bolted to a second connecting plate. The second connecting plate and the first connecting plate... The plates are connected to a drive plate by bolts. A concave steel piece with an opening facing outward is installed between the two half-templates. One end of the drive plate is welded to the concave steel piece, and the other end of the drive plate is welded to a main shaft. A drive shaft is rotatably connected to the center of the base plate. A second rotating plate is fixedly connected to the drive shaft. Both ends of the second rotating plate are rotatably connected to a first rotating plate. The end of the first rotating plate opposite to the second rotating plate is rotatably connected to a main shaft welded to the drive plate. A support member is provided between the template and the drive shaft. Multiple compression seams arranged in a triangle are provided on both sides of each template.
[0007] Preferably, the limiting sliding component includes a third fixing plate fixedly connected to the side wall of the inner mold, the third fixing plate having a stroke groove, a fixing bolt fixedly installed on the base plate, a first nut threadedly connected to the fixing bolt, and a spring provided between the first nut and the third fixing plate.
[0008] Preferably, the support member includes multiple support plates fixedly connected to the drive shaft, and a support tube is provided through the multiple support plates, with the bottom end of the support tube fixedly connected to the base plate.
[0009] Preferably, a third connecting plate is bolted to the end of the second connecting plate opposite to the first connecting plate. A positioning pin is welded to the third connecting plate, and a positioning plate is slidably connected to the positioning pin. A second nut is provided on both sides of the positioning plate, and a notch is provided on the second fixing plate, with the positioning plate abutting against the notch.
[0010] Preferably, a sealing strip is installed on the concave steel part.
[0011] Preferably, the maximum rotation angle of the second rotating plate is 180 degrees.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By using the drive end to rotate the drive shaft, the inner mold contracts inward to detach from the cement component, and then the cement component is hoisted. This demolding method is more efficient. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a manhole mold that facilitates the detachment of cement components, as proposed in this utility model.
[0015] Figure 2 This is a partial structural diagram of the shaft sides of a manhole mold that facilitates the detachment of cement components, as proposed in this utility model.
[0016] Figure 3 This is a top view of a partial structural diagram of a manhole mold that facilitates the detachment of cement components, as proposed in this utility model.
[0017] Figure 4 This is a schematic diagram of the front structure of the second fixing plate.
[0018] In the diagram: 1 Template 1, 2 Template 2, 3 Sealing strip, 4 Support pipe, 5 Support plate, 6 Drive shaft, 7 Compression joint, 8 First fixing plate, 9 First connecting plate, 10 Drive plate, 11 Second fixing plate, 12 First rotating plate, 13 Spring, 14 First nut, 15 Base plate, 16 Third fixing plate, 17 Stroke groove, 18 Positioning plate, 19 Positioning pin, 20 Second rotating plate, 21 Main shaft. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0021] Reference Figures 1-3A manhole mold for easy removal of cement components includes an inner mold and an outer mold (the outer mold is not shown). The inner mold includes two template 1s and two template 2s, which are arranged opposite each other. A base plate 15 is installed on the bottom side of the inner mold via a limiting sliding member. Each template 2 includes two half-templates. One half-template is welded with multiple first fixing plates 8 perpendicularly connected to it. The first fixing plates 8 are bolted to first connecting plates 9. The other half-template is welded with multiple second fixing plates 11 perpendicularly connected to it. The second fixing plates 11 and the first fixing plates 8 are matched in position and are on the same horizontal plane. A second connecting plate is bolted to the first connecting plate. The second connecting plate and the first connecting plate are bolted together to a drive plate 10. A concave steel piece with an opening facing outwards is installed between the two half-templates. One end of the drive plate 10 is welded to the concave steel piece, and the other end is welded to a main shaft 21. A drive shaft 6 is rotatably connected to the center of the base plate. The drive shaft 6 is detachably connected to a drive end, which can be a motor or manually operated with a wrench. A second rotating plate 20 is fixedly connected to the drive shaft 6. Both ends of the second rotating plate 20 are rotatably connected to a first rotating plate 12. The second rotating plate 20 is eye-shaped. The first rotating plate 12 is rotatably connected to both ends of the second rotating plate 20. A slot matching the shape of the second rotating plate 20 is opened on the opposite side of the first rotating plate 12. During rotation, the slot will fit against the outer wall of the second rotating plate 20. A main shaft 21 welded to the drive plate 10 is rotatably connected to the end of the first rotating plate 12 facing away from the second rotating plate 20. A support member is provided between the template 1 and the drive shaft 6. Multiple triangular compression seams 7 are provided on both sides of each template 1. A total of four compression seams 7 are provided on the template 1, two on the upper surface and two on the lower surface. When the drive shaft 6 rotates... When the second rotating plate 20 rotates, it drives the first rotating plate 12 to rotate, which in turn drives the main shaft 21 to rotate. Then, the drive plate 10 is slowly pulled inward, and the template 2 is also pulled inward. The template 2 will slowly squeeze the template 1, and the compression joint 7 will be slowly compressed, so that the template 2 will detach from the cement component. In addition, when the template 2 is pulled, the first connecting plate 9, the second connecting plate, and the third connecting plate will all rotate slightly. This rotation can not only buffer the stress, but also help to detach from the cement component. After the cement component is hoisted and dragged away, the reverse rotation of the drive shaft 6 will restore the original state.
[0022] The limiting sliding component includes a third fixed plate 16 fixedly connected to the side wall of the inner mold. The third fixed plate 16 has a stroke groove 17. A fixing bolt is fixedly installed on the base plate 15. A first nut 14 is threadedly connected to the fixing bolt. A spring 13 is provided between the first nut 14 and the third fixed plate 16. The spring 13 is always in a compressed state. The resulting elastic force will squeeze the first nut 14 and the third fixed plate 16. Through the transmission of force, the elastic force can be transmitted between the base plate 15 and the template 2, and between the base plate 15 and the template 1, converting the elastic force into pressure so that the base plate 15 and the first nut 14 are tightly fitted together when there is no external force. During pouring, it will remain stable and will not move inward. When subjected to external force, the template 2 is compressed and moved inward, thereby overcoming the pressure and driving the third fixed plate 16 to move.
[0023] The support components include multiple support plates 5 fixedly connected to the drive shaft 6, with a support tube 4 running through the multiple support plates 5. The bottom end of the support tube 4 is fixedly connected to the base plate, and one end of the multiple support plates 5 is welded to the side wall of the template 1. The support of the support plates 5 can maintain the stability of the template 1.
[0024] A third connecting plate is bolted to the end of the second connecting plate opposite to the first connecting plate 9. A positioning pin 19 is welded to the third connecting plate, and a positioning plate 18 is slidably connected to the positioning pin 19. Second nuts are provided on both sides of the positioning plate 18. A notch is provided on the second fixing plate 11, and the positioning plate 18 abuts against the notch. The notch is as follows: Figure 4 In step A, as template 2 is continuously shrinking and returning to its original shape, the bolts of the first connecting plate 9, the second connecting plate, the third connecting plate, and each connecting plate will generate slight friction, resulting in wear or loosening. At this time, the second nut can be rotated to change the position of the positioning plate 18 on the positioning pin 19, so that it always abuts against the end face of the notch, thereby completing the pre-tightening effect.
[0025] A sealing strip 3 is installed on the concave steel part to seal it and prevent mud from entering the gap at the connection between the two valves.
[0026] The maximum rotation angle of the second rotating plate 20 is 180 degrees, which allows the template 2 to fully retract inward and completely detach the surface of the template 2 from the cement component.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A manhole mold for easy removal of cement components, comprising an inner mold and an outer mold, wherein the inner mold comprises two templates (1) and two templates (2), the two templates (1) and the two templates (2) being arranged opposite each other, and a base plate (15) is installed on the bottom side of the inner mold via a limiting sliding member, characterized in that... Each template two (2) includes two half templates. One half template is welded with multiple first fixing plates (8) perpendicularly connected to it. The first fixing plate (8) is bolted to a first connecting plate (9). The other half template is welded with multiple second fixing plates (11) perpendicularly connected to it. The second fixing plate (11) is bolted to a second connecting plate. The second connecting plate and the first connecting plate are bolted together to a drive plate (10). A concave steel piece with an opening facing outward is installed between the two half templates. One end of the drive plate (10) is welded to the concave steel piece. The steel part has a main shaft (21) welded to the other end of the drive plate (10), a drive shaft (6) rotatably connected to the center of the base plate, a second rotating plate (20) fixedly connected to the drive shaft (6), a first rotating plate (12) rotatably connected to both ends of the second rotating plate (20), a main shaft (21) welded to the drive plate (10) rotatably connected to the end of the first rotating plate (12) away from the second rotating plate (20), a support member is provided between the template (1) and the drive shaft (6), and multiple compression seams (7) arranged in a triangle are provided on both sides of each template (1).
2. The manhole mold for facilitating the detachment of cement components according to claim 1, characterized in that... The limiting sliding component includes a third fixing plate (16) fixedly connected to the inner mold side wall. The third fixing plate (16) has a stroke groove (17). A fixing bolt is fixedly installed on the bottom plate (15). A first nut (14) is threadedly connected to the fixing bolt. A spring (13) is provided between the first nut (14) and the third fixing plate (16).
3. The manhole mold for facilitating the detachment of cement components according to claim 2, characterized in that, The support includes multiple support plates (5) fixedly connected to the drive shaft (6), and a support tube (4) is provided through the multiple support plates (5). The bottom end of the support tube (4) is fixedly connected to the base plate.
4. The manhole mold for facilitating the detachment of cement components according to claim 3, characterized in that, A third connecting plate is bolted to one end of the second connecting plate away from the first connecting plate (9). A positioning pin (19) is welded to the third connecting plate. A positioning plate (18) is slidably connected to the positioning pin (19). A second nut is provided on both sides of the positioning plate (18). A notch is provided on the second fixing plate (11). The positioning plate (18) abuts against the notch.
5. A manhole mold for facilitating the detachment of cement components according to claim 4, characterized in that, A sealing strip (3) is installed on the concave steel part.
6. A manhole mold for facilitating the detachment of cement components according to claim 5, characterized in that, The maximum rotation angle of the second rotating plate (20) is 180 degrees.