Adjustable inspection well internal mold device

By designing an adjustable inspection well inner mold device and adjusting the position of the inner mold and outer mold using the adjustment components, the problem of difficulty in adjusting the position of the inner mold and outer mold in the prior art is solved, and precise positioning, easy disassembly and eliminate concrete bubbles are achieved. effect.

CN222500343UActive Publication Date: 2025-02-18FUZHOU HENGYITONG CEMENT PROD CO LTD
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Patent Information

Application Number
CN202420903015.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-28
Publication Date
2025-02-18
Estimated Expiration
2034-04-28

AI Technical Summary

Technical Problem

The existing inspection well inner and outer molds are difficult to adjust the position when placed, resulting in difficult distance determination and lack of adjustable positioning and anti-biasing function.

Method used

An adjustable inspection well inner mold device is designed, including two sets of semi-cylindrical inner mold bodies and adjustment components. The adjustment assembly consists of a transverse bearing plate, a sliding adjustment sleeve, a transverse adjustment rod and a positioning bolt. These components can adjust the position of the inner and outer molds to achieve accurate positioning and anti-biasing.

Benefits of technology

The adjustable positioning and anti-biasing function of the inner and outer molds is realized, which is easy to connect and disassemble and assemble, and can eliminate air bubbles in the concrete and improve the firmness of the concrete.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable inspection well internal mold device, which comprises two groups of semi-cylindrical internal mold main bodies, bottom support rings are welded at the bottom ends of the semi-cylindrical internal mold main bodies, and the top ends of the top support rings are provided with adjusting components convenient for limiting the distance between the internal mold and the external mold. According to the adjustable inspection well inner mold device, the top fixing screw eye, the arc-shaped fixing plate, the fixing bolt, the transverse bearing plate, the sliding adjusting sleeve, the transverse adjusting rod, a positioning screw eye, an outer mold positioning rod, an inner threaded pipe seat and a positioning bolt are arranged, when the adjustable inspection well inner mold device is used, the positioning bolt is unscrewed, and the transverse adjusting rod can slide left and right along the interior of the sliding adjusting sleeve; according to the adjustable positioning deviation prevention device, the amplitude is adjusted according to the fact that the inward faces of the four sets of outer mold positioning rods are attached to the outer wall of the outer mold, when the inner mold is placed, the four outer mold positioning rods abut against the outer wall of the outer mold, the inner mold is right located in the center of the outer mold, the adjustable positioning deviation prevention function is achieved, and the problem that the device does not have the adjustable positioning deviation prevention function is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an adjustable inner mold device for an inspection well. Background Art

[0002] Inspection wells are auxiliary structures set up for easy installation and maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, and street light lines. They are generally made of concrete and cast on site during construction.

[0003] The inspection well mold is divided into two parts, the inner mold and the outer mold, both of which are cylindrical structures. During pouring, the outer mold is put on the outside of the inner mold, and a cylindrical space is formed between the two, and concrete is poured into it. The inner mold and the outer mold are both made of steel, usually composed of two semi-cylindrical components, and the components are connected by bolts and nuts. There are some functional deficiencies in actual use and there is room for improvement. For example, when placing the inner mold and the outer mold, the distance between each surface needs to be kept consistent, while the inner and outer molds are two independent individuals. After the two are placed, their position is difficult to adjust because the distance between them is not easy to determine, and it needs to be measured repeatedly with a tape measure, which is more troublesome, and it does not have the function of adjustable positioning and anti-deviation.

[0004] Now, a novel adjustable inspection well inner mold device is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an adjustable inspection well inner mold device to solve the problem of lack of adjustable positioning and anti-deviation function proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable inspection well inner mold device, comprising two groups of semi-cylindrical inner mold bodies, a bottom support ring is welded to the bottom end of the semi-cylindrical inner mold body, a waist support ring is welded at the middle position of the inner side surface of the semi-cylindrical inner mold body, a top support ring is welded to the top of the semi-cylindrical inner mold body, and inner mold butt edges are vertically welded to the front and rear ends of one side of the semi-cylindrical inner mold body, and an adjustment component is provided at the top of the top support ring for facilitating limiting the distance between the inner and outer molds.

[0007] The adjustment assembly includes two groups of transverse bearing plates, which are placed horizontally at the top of the top support ring. A plurality of top fixing screw eyes are arranged inside the top support ring. Two groups of arc-shaped fixing plates are welded to the bottom end of the transverse bearing plates. Two groups of fixing bolts are inserted at the top of the arc-shaped fixing plates. Sliding adjustment sleeves are welded on both sides of the top of the transverse bearing plates. A transverse adjustment rod is inserted horizontally inside the sliding adjustment sleeve. A plurality of positioning screw eyes are arranged on the top of the transverse adjustment rod. An external mold positioning rod is fixedly connected to one side of the bottom end of the transverse adjustment rod. An internal threaded pipe seat is fixedly connected to the top of the sliding adjustment sleeve. Positioning bolts are inserted from top to bottom inside the internal threaded pipe seat.

[0008] Preferably, the fixing bolt passes through the arc-shaped fixing plate and extends into the interior of the top fixing screw eye, and the thread on the outside of the fixing bolt matches the thread on the inside of the top fixing screw eye.

[0009] Preferably, the outer diameter of the transverse adjustment rod is consistent with the inner diameter of the sliding adjustment sleeve, and the transverse adjustment rod can move horizontally left and right along the inside of the sliding adjustment sleeve.

[0010] Preferably, the positioning bolts penetrate the internal threaded pipe seat and extend into the interior of the positioning screw eyes, and the positioning screw eyes are arranged at equal intervals.

[0011] Preferably, two groups of columnar protrusions are provided at one end of the inner mold butt joint edge, the bottom ends of the columnar protrusions are fixedly connected to sleeve positioning plates, and the outsides of the columnar protrusions are sleeved with connecting sleeves.

[0012] Preferably, six groups of docking magnetic plates are arranged inside the other side of the inner mold docking edge, the inner diameter of the connecting sleeve is matched with the outer diameter of the columnar protrusion, and the connecting sleeve can slide up and down along the outside of the columnar protrusion.

[0013] Preferably, the upper and lower ends of the inner side surface of the semi-cylindrical inner mold body are respectively fixedly connected to a fixed shell, one side of the fixed shell is fixedly connected to a side cover, one side of the side cover is installed with a servo motor, and the output end of the servo motor is fixedly connected to an eccentric wheel.

[0014] Preferably, a power cord is installed on the other side of the side cover, a plug is provided at the end of the power cord, and the servo motor, the power cord and the plug are electrically connected.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the adjustable manhole inner mold device not only realizes the adjustable positioning and anti-deviation function, but also realizes the function of being easy to connect and disassemble, and also realizes the function of being easy to eliminate bubbles in concrete;

[0016] (1) By providing a top fixing screw eye, an arc-shaped fixing plate, a fixing bolt, a transverse bearing plate, a sliding adjustment sleeve, a transverse adjustment rod, a positioning screw eye, an outer mold positioning rod, an internal threaded pipe seat and a positioning bolt, when in use, two groups of semi-cylindrical inner mold bodies constitute the main body of the inner mold. After the splicing is completed, the outer mold is first placed horizontally at the pouring position, and then the inner mold is horizontally lowered along the top opening of the outer mold. Concrete is poured in the gap between the inner mold and the outer mold. After drying and solidification, an inspection well can be formed. Before placing the inner mold into the outer mold, the positions of the four groups of outer mold positioning rods are adjusted according to the size of the outer mold. The positioning bolts are first loosened, and the positioning bolts are disengaged from the positioning screw eyes along the internal threaded pipe seat. The horizontal The adjusting rod can slide left and right along the inside of the sliding adjustment sleeve, and the position of the outer mold positioning rod is adjusted. The adjustment range is based on the fit between the inward side of the four sets of outer mold positioning rods and the outer wall of the outer mold. Multiple sets of positioning screw eyes make it possible to choose from a variety of specifications. After adjusting to the appropriate position, tighten the positioning bolts, and the positioning bolts are inserted into the positioning screw eyes. The position of the outer mold positioning rod is fixed. When placing the inner mold, the four outer mold positioning rods are against the outer wall of the outer mold, so that the position of the inner mold is exactly in the center of the outer mold, and subsequent casting work can be carried out. The fixing bolts on the arc-shaped fixing plate are embedded in the top fixing screw eyes, which can fix the transverse bearing plate together with the various components of the sliding adjustment sleeve, realizing the function of adjustable positioning and anti-deviation.

[0017] (2) By providing the inner mold docking edge, the cylindrical outer protrusion, the sleeve positioning plate, the connecting sleeve and the docking magnetic plate, when the two sets of semi-cylindrical inner mold bodies are docked, the inner mold docking edges of the two sets of semi-cylindrical inner mold bodies are fitted and docked with each other, and the docking magnetic plates are attracted to each other to make them in a pre-fixed state. While the inner mold docking edges are aligned, the cylindrical outer protrusion and the sleeve positioning plate are also synchronously aligned. The connecting sleeve is put along the outer side of the cylindrical outer protrusion, and the bottom is directly pressed against the sleeve positioning plate. The connecting sleeve can lock the cylindrical outer protrusion, and the two sets of inner mold docking edges are locked. The two sets of semi-cylindrical inner mold bodies are docked. When disassembled later, the connecting sleeve can be pulled out upwards, realizing the function of facilitating docking and disassembly;

[0018] (3) By providing a fixed shell, a side cover, a servo motor, an eccentric wheel, a power cord and a plug, when in use, as concrete is poured into the mold, the plug on the power cord is inserted into the power supply, the servo motor on the side cover starts and drives the eccentric wheel to rotate continuously to form high-frequency vibration, and the vibration is transmitted to the semi-cylindrical inner mold body through the fixed shell, so that the concrete outside thereof vibrates synchronously, accelerating the precipitation of bubbles inside it, making the concrete more compact, and realizing the function of facilitating the elimination of bubbles in the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the top support ring structure of the utility model from a top view;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the semi-cylindrical inner mold body in a top view of the present utility model;

[0024] Figure 6 It is a side view structural schematic diagram of the semi-cylindrical inner mold body of the utility model.

[0025] In the figure: 1. Semi-cylindrical inner mold body; 2. Bottom support ring; 3. Waist support ring; 4. Top support ring; 5. Top fixing screw eye; 6. Arc-shaped fixing plate; 7. Fixing bolt; 8. Horizontal bearing plate; 9. Sliding adjustment sleeve; 10. Horizontal adjustment rod; 11. Positioning screw eye; 12. Outer mold positioning rod; 13. Internal threaded pipe seat; 14. Positioning bolt; 15. Inner mold docking edge; 16. Columnar protrusion; 17. Sleeve positioning plate; 18. Connecting sleeve; 19. Docking magnetic plate; 20. Fixed shell; 21. Side cover; 22. Servo motor; 23. Eccentric wheel; 24. Power cord; 25. Plug. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1: Please refer to Figure 1-6 The adjustable manhole inner mold device comprises two groups of semi-cylindrical inner mold bodies 1, a bottom support ring 2 is welded at the bottom end of the semi-cylindrical inner mold body 1, a waist support ring 3 is welded at the middle position of the inner side of the semi-cylindrical inner mold body 1, a top support ring 4 is welded at the top of the semi-cylindrical inner mold body 1, and inner mold butt edges 15 are vertically welded at the front and rear ends of one side of the semi-cylindrical inner mold body 1, and an adjustment component for limiting the distance between the inner and outer molds is arranged at the top of the top support ring 4;

[0028] See also Figure 1-6The adjustable inspection well inner mold device also includes an adjustment component, which includes two groups of transverse bearing plates 8, which are horizontally placed on the top of the top support ring 4, and multiple groups of top fixing screw eyes 5 are arranged inside the top support ring 4. Two groups of arc-shaped fixing plates 6 are welded to the bottom of the transverse bearing plates 8, and two groups of fixing bolts 7 are inserted at the top of the arc-shaped fixing plates 6. Sliding adjustment sleeves 9 are welded on both sides of the top of the transverse bearing plates 8, and a transverse adjustment rod 10 is inserted laterally inside the sliding adjustment sleeve 9. Multiple groups of positioning screw eyes 11 are arranged on the top of the transverse adjustment rod 10. One side of the bottom end of the transverse adjustment rod 10 is fixedly connected to an external mold positioning rod 12, and the top of the sliding adjustment sleeve 9 is fixedly connected to an internal threaded pipe seat 13, and the internal part of the internal threaded pipe seat 13 is inserted with positioning bolts 14 from top to bottom;

[0029] The fixing bolt 7 penetrates the arc-shaped fixing plate 6 and extends into the interior of the top fixing screw eye 5. The thread outside the fixing bolt 7 matches the thread inside the top fixing screw eye 5. The outer diameter of the lateral adjustment rod 10 is consistent with the inner diameter of the sliding adjustment sleeve 9. The lateral adjustment rod 10 can move horizontally left and right along the interior of the sliding adjustment sleeve 9. The positioning bolt 14 penetrates the internal threaded pipe seat 13 and extends into the interior of the positioning screw eye 11. The positioning screw eyes 11 are arranged at equal intervals. By adjusting the position of the positioning rod, the inner and outer molds can be accurately fitted without deflection.

[0030] Specifically, Figure 1 and Figure 4 As shown, first loosen the positioning bolt 14, the positioning bolt 14 moves upward along the internal threaded pipe seat 13 and disengages from the positioning screw eye 11, and the lateral adjustment rod 10 can slide left and right along the inside of the sliding adjustment sleeve 9, and the position of the outer mold positioning rod 12 is adjusted. The adjustment range is based on the fit between the inward side of the four groups of outer mold positioning rods 12 and the outer wall of the outer mold. Multiple groups of positioning screw eyes 11 make it possible to have a variety of specifications to choose from. After adjusting to the appropriate position, tighten the positioning bolt 14, the positioning bolt 14 is inserted into the positioning screw eye 11, and the position of the outer mold positioning rod 12 is fixed. When placing the inner mold, the four outer mold positioning rods 12 are against the outer wall of the outer mold, so that the position of the inner mold is exactly in the center of the outer mold, and subsequent casting work can be carried out. The fixing bolts 7 on the arc-shaped fixing plate 6 are embedded in the top fixing screw eye 5, so that the lateral bearing plate 8 together with the sliding adjustment sleeve 9 components can be fixed.

[0031] Embodiment 2: Two groups of columnar protrusions 16 are arranged at one end of the inner mold docking edge 15, a sleeve positioning plate 17 is fixedly connected to the bottom end of the columnar protrusion 16, a connecting sleeve 18 is sleeved on the outside of the columnar protrusion 16, and six groups of docking magnetic plates 19 are arranged inside the other side of the inner mold docking edge 15. The inner diameter of the connecting sleeve 18 is matched with the outer diameter of the columnar protrusion 16, and the connecting sleeve 18 can slide up and down along the outside of the columnar protrusion 16, which is convenient for splicing and disassembly;

[0032] Specifically, Figure 1 , Figure 3 and Figure 5 As shown, the inner mold docking edges 15 of the two groups of semi-cylindrical inner mold main bodies 1 are fitted and docked with each other, and the docking magnetic plates 19 are attracted to each other to make them in a pre-fixed state. While the inner mold docking edges 15 are aligned, the columnar protrusions 16 and the sleeve positioning plate 17 are also synchronously aligned, and the connecting sleeve 18 is put along the outside of the columnar protrusion 16, and the bottom is directly pressed against the sleeve positioning plate 17. The connecting sleeve 18 can lock the columnar protrusion 16, and the two groups of inner mold docking edges 15 are locked, and the two groups of semi-cylindrical inner mold main bodies 1 are docked. When disassembling later, the connecting sleeve 18 can be pulled out upwards.

[0033] Embodiment 3: The upper and lower ends of the inner side of the semi-cylindrical inner mold body 1 are respectively fixedly connected with a fixed shell 20, one side of the fixed shell 20 is fixedly connected with a side cover 21, one side of the side cover 21 is installed with a servo motor 22, the output end of the servo motor 22 is fixedly connected with an eccentric wheel 23, and the other side of the side cover 21 is installed with a power cord 24, and the end of the power cord 24 is provided with a plug 25. The servo motor 22, the power cord 24, and the plug 25 are electrically connected, which can accelerate the precipitation of bubbles in the concrete and make the concrete more compact and firm.

[0034] Specifically, Figure 1 , Figure 2 and Figure 6 As shown, the plug 25 on the power cord 24 is inserted into the power supply, the servo motor 22 on the side cover 21 is started and drives the eccentric wheel 23 to rotate continuously to form high-frequency vibration, and the vibration is transmitted to the semi-cylindrical inner mold body 1 through the fixed shell 20, so that the concrete outside it vibrates synchronously, accelerates the precipitation of bubbles inside it, and makes the concrete more compact.

[0035] Working principle: When the utility model is used, first, two groups of semi-cylindrical inner mold bodies 1 constitute the main body of the inner mold. After the splicing is completed, the outer mold is first placed horizontally at the pouring position, and then the inner mold is horizontally lowered along the top opening of the outer mold, and concrete is poured in the gap between the inner mold and the outer mold. After drying and solidification, an inspection well can be formed. Before placing the inner mold into the outer mold, the positions of the four groups of outer mold positioning rods 12 are adjusted according to the size of the outer mold. The positioning bolts 14 are first loosened, and the positioning bolts 14 go up along the internal threaded pipe seat 13 to disengage the positioning screw eyes 11, and the lateral adjustment rod 10 can slide left and right along the inside of the sliding adjustment sleeve 9, and the outer mold is positioned. The position of the rod 12 is adjusted, and the adjustment range is based on the fit between the inward side of the four groups of outer mold positioning rods 12 and the outer wall of the outer mold. Multiple groups of positioning screw eyes 11 make it possible to have a variety of specifications. After adjusting to the appropriate position, tighten the positioning bolts 14, and the positioning bolts 14 are inserted into the positioning screw eyes 11. The position of the outer mold positioning rod 12 is fixed. When placing the inner mold, the four outer mold positioning rods 12 are against the outer wall of the outer mold, so that the position of the inner mold is exactly in the center of the outer mold, and subsequent casting work can be carried out. The fixing bolts 7 on the arc-shaped fixing plate 6 are embedded in the top fixing screw eyes 5, so that the transverse bearing plate 8 together with the sliding adjustment sleeve 9 can be fixed. When two groups of semi-cylindrical inner mold bodies 1 are docked, the inner mold docking edges 15 of the two groups of semi-cylindrical inner mold bodies 1 are attached to each other, and the docking magnetic plates 19 are attracted to each other to make them in a pre-fixed state. When the inner mold docking edges 15 are aligned, the cylindrical protrusions 16 and the sleeve positioning plate 17 are also synchronously aligned. The connecting sleeve 18 is put along the outer side of the cylindrical protrusion 16, and the bottom is directly pressed against the sleeve positioning plate 17. The connecting sleeve 18 can lock the cylindrical protrusion 16, and the two groups of inner mold docking edges 15 are locked. The two groups of semi-cylindrical inner mold bodies 1 are docked, and the connecting sleeve 18 can be pulled out upwards during later disassembly. As the concrete is poured into the mold, the plug 25 on the power cord 24 is plugged into the power supply, and the servo motor 22 on the side cover 21 is started and drives the eccentric wheel 23 to rotate continuously to form high-frequency vibration. The vibration is transmitted to the semi-cylindrical inner mold body 1 through the fixed shell 20, so that the concrete outside it vibrates synchronously, accelerates the precipitation of bubbles inside it, and makes the concrete more compact.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adjustable manhole inner mold device, comprising two sets of semi-cylindrical inner mold bodies (1), characterized in that: A bottom support ring (2) is welded to the bottom end of the semi-cylindrical inner mold body (1), a waist support ring (3) is welded to the middle position of the inner side surface of the semi-cylindrical inner mold body (1), a top support ring (4) is welded to the top end of the semi-cylindrical inner mold body (1), and inner mold butt joint edges (15) are vertically welded to the front and rear ends of one side of the semi-cylindrical inner mold body (1), and an adjustment component for limiting the distance between the inner and outer molds is arranged at the top end of the top support ring (4); The adjustment assembly comprises two groups of transverse bearing plates (8), the two groups of transverse bearing plates (8) are horizontally placed on the top of the top support ring (4), a plurality of groups of top fixing screw eyes (5) are arranged inside the top support ring (4), two groups of arc-shaped fixing plates (6) are welded to the bottom end of the transverse bearing plate (8), two groups of fixing bolts (7) are inserted at the top of the arc-shaped fixing plate (6), sliding adjustment sleeves (9) are welded to both sides of the top of the transverse bearing plate (8), a transverse adjustment rod (10) is inserted laterally inside the sliding adjustment sleeve (9), a plurality of groups of positioning screw eyes (11) are arranged at the top of the transverse adjustment rod (10), one side of the bottom end of the transverse adjustment rod (10) is fixedly connected to an external mold positioning rod (12), the top end of the sliding adjustment sleeve (9) is fixedly connected to an internal threaded pipe seat (13), and a positioning bolt (14) is inserted from top to bottom inside the internal threaded pipe seat (13).

2. The adjustable inner mold device for inspection well according to claim 1 is characterized in that: The fixing bolt (7) passes through the arc-shaped fixing plate (6) and extends into the interior of the top fixing screw eye (5), and the thread on the outside of the fixing bolt (7) matches the thread on the inside of the top fixing screw eye (5).

3. The adjustable inner mold device for inspection well according to claim 1 is characterized in that: The outer diameter of the transverse adjustment rod (10) is consistent with the inner diameter of the sliding adjustment sleeve (9), and the transverse adjustment rod (10) can move horizontally left and right along the inside of the sliding adjustment sleeve (9).

4. The adjustable inner mold device for inspection well according to claim 1 is characterized in that: The positioning bolts (14) penetrate the internal threaded pipe seat (13) and extend into the interior of the positioning screw eyes (11), and the positioning screw eyes (11) are arranged at equal intervals.

5. The adjustable inner mold device for inspection well according to claim 1 is characterized in that: One end of the inner mold butt joint edge (15) is provided with two groups of columnar protrusions (16), the bottom end of the columnar protrusion (16) is fixedly connected to a sleeve positioning plate (17), and the outside of the columnar protrusion (16) is sleeved with a connecting sleeve (18).

6. The adjustable inner mold device for inspection well according to claim 5 is characterized in that: Six groups of docking magnetic plates (19) are arranged inside the other side of the inner mold docking edge (15); the inner diameter of the connecting sleeve (18) is matched with the outer diameter of the columnar protrusion (16); and the connecting sleeve (18) can slide up and down along the outside of the columnar protrusion (16).

7. The adjustable inner mold device for inspection well according to claim 1 is characterized in that: The upper and lower ends of the inner side surface of the semi-cylindrical inner mold body (1) are respectively fixedly connected to a fixed shell (20), one side of the fixed shell (20) is fixedly connected to a side cover (21), one side of the side cover (21) is installed with a servo motor (22), and the output end of the servo motor (22) is fixedly connected to an eccentric wheel (23).

8. The adjustable inner mold device for inspection well according to claim 7 is characterized in that: A power cord (24) is installed on the other side of the side cover (21), a plug (25) is provided at the end of the power cord (24), and the servo motor (22), the power cord (24), and the plug (25) are electrically connected.