A sleeve structure for an oral hospital dental chair and a pre-embedding method

By using a sleeve structure and pre-embedding method, and employing welding gusset plates for fixing and double-sided wire pulling technology, the positioning accuracy and fixing problems of the dental chair sleeve pre-embedding were solved, ensuring the stability of the sleeve during concrete pouring and the smoothness of pipeline installation, thus achieving an efficient construction management process.

CN122097101APending Publication Date: 2026-05-29TIANJIN DENTAL HOSPITAL +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN DENTAL HOSPITAL
Filing Date
2026-04-19
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In dental hospital projects, the pre-embedding of the sleeves for dental chair treatment units presents challenges such as difficulty in ensuring positioning accuracy, insecure fixing, difficulty in protecting finished products, and conflicts in pipeline layout, which affect the accurate positioning and installation efficiency of the subsequent dental chairs.

Method used

The casing structure includes the casing, pipeline components, and proton plates. It is fixed by welding gusset plates and double-sided wire pulling technology, combined with algorithm formulas to control the verticality deviation of the casing, ensuring the stability and accuracy of the casing during the concrete pouring process. The pipeline layout is planned before construction to avoid intersections and compression.

Benefits of technology

The precision control of the pre-embedded sleeve is achieved at the millimeter level, ensuring the integrity of the sleeve in complex construction environments, improving the efficiency and smoothness of the installation of dental chair pipelines, forming a systematic construction management process, and saving construction time and costs.

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Abstract

The application discloses a sleeve structure and pre-embedding method for a dental chair in an oral hospital, which comprises a sleeve, a pipeline assembly and a proton plate, the pipeline assembly is installed in the sleeve through the proton plate, and the bottom circumferential part of the sleeve is provided with a plurality of mounting pieces, and the mounting pieces are provided with mounting holes. The application has the beneficial effects that: through the welding plate fixing+double-sided pull line technology, the pre-embedding precision of more than 300 sleeves is controlled in the millimeter level, which lays a solid foundation for the immediate use of the dental chair, the firm fixing mode and the effective finished product protection ensure the intact rate of the sleeve in the complex construction environment, the one-time pre-embedding and one-time excellent production are realized, the potential pipeline conflict problem is solved before the construction, the efficiency and smoothness of the late dental chair pipeline installation are greatly improved, the construction period and cost are saved, a complete and closed-loop construction management process from the early planning, process control and late protection is formed, and the application has extremely high popularization value.
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Description

Technical Field

[0001] This invention relates to the field of medical engineering construction technology, and in particular to a sleeve structure and pre-embedding method for dental chairs in dental hospitals. Background Technology

[0002] In the construction of the dental hospital project, each dental chair requires the pre-embedding of a conduit in the structural floor slab to accommodate a total of eight pipelines, including water supply, gas supply, sewage, power supply, and control lines. Traditional pre-embedding methods have the following drawbacks: Positioning accuracy is difficult to guarantee: There are many sleeves (up to 300 in this project), and they are constructed in conjunction with processes such as steel reinforcement and formwork, which can easily lead to positional deviations (the design requires coordinate error ≤3mm and height error ≤2mm), affecting the accurate positioning of the dental chair in the later stages.

[0003] Insecure fixing: During the concrete pouring process, the sleeve is easily impacted and may shift or tilt, resulting in substandard final molding quality.

[0004] Difficulty in protecting finished products: After the pre-embedding is completed, the sleeve opening is exposed, which makes it very easy for construction waste to fall in or for it to be damaged by collision during subsequent construction, causing blockage or deformation.

[0005] Pipeline layout conflicts: Due to limited internal space in the conduit, if the eight pipelines are not planned in advance, they are prone to crossing or squeezing during installation, making it difficult for them to pass smoothly. Therefore, it is necessary to propose a pre-embedded device and construction method for through-beam sleeves to address the above issues. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a pre-embedded device and construction method for through-beam sleeves to solve the above problems.

[0007] A sleeve structure for a dental chair in a dental hospital includes a sleeve, a tubing assembly, and a proton exchange plate. The tubing assembly is installed inside the sleeve via the proton exchange plate. A plurality of mounting plates are provided on the bottom circumference of the sleeve, and each mounting plate is provided with mounting holes. The mounting plates at the bottom of the sleeve are fixed to a template by screws.

[0008] Preferably, the outer wall of the sleeve is provided with reinforcing ribs.

[0009] Preferably, the sleeve is made of hot-dip galvanized steel pipe or stainless steel pipe.

[0010] Preferably, the piping assembly includes a tap water inlet pipe, a purified water inlet pipe, an air inlet pipe, a negative pressure axial suction pipe, a negative pressure control conduit, a power conduit, a drain pipe, and a reserved connecting side cabinet conduit.

[0011] Preferably, the proton plate is provided with a water inlet pipe hole, a purified water inlet pipe hole, an air inlet pipe hole, a negative pressure shaft suction pipe hole, a negative pressure control line pipe hole, a power line pipe hole, a drain pipe hole, and a reserved connecting side cabinet pipe hole corresponding to the pipeline components.

[0012] Preferably, the proton plate is made of hot-dip galvanized steel or stainless steel.

[0013] A method for pre-embedding a sleeve structure for dental chairs in a dental hospital, comprising the following steps: S1. Frame erection, formwork leveling or truss panel installation; S2. Sleeve laying, sleeve positioning and installation; S3. Construction of reinforcing steel around the casing; S4. Measurement and verification, concrete pouring, and finished product protection.

[0014] Specifically, S1 involves erecting a frame on the structure and then laying templates or truss panels on the frame; S2 involves marking the installation positions of the sleeves on the templates or truss panels and then installing the sleeves at the marked positions.

[0015] Step S3 specifically involves erecting a steel cage around the casing, with the circumference of the casing connected to the steel cage by several connecting bars. Step S4 specifically involves measuring whether the installation position meets the requirements, then putting a protective cover on the upper part of the casing, and pouring concrete.

[0016] Preferably, the verticality deviation of the sleeve installation is controlled by an algorithm formula, which is: ; in For the verticality deviation of the sleeve installation, This represents the number of measurement points along the height of the casing. This represents the deviation of the i-th measurement point relative to the central axis of the sleeve in the X-axis direction. This represents the deviation of the i-th measurement point in the Y-axis direction relative to the central axis of the casing; This is the average value of the X-axis deviation values ​​for all measurement points. This is the average value of the Y-axis deviation values ​​for all measurement points. The actual installation height of the sleeve; the verticality deviation of the sleeve installation. The requirement is δ≤0.5% to ensure smooth installation of piping components and accurate subsequent assembly of the dental chair.

[0017] Compared with the prior art, the present invention has the following advantages: 1. This invention uses welding gusset plates and double-sided wire pulling technology to control the pre-embedding accuracy of more than 300 sleeves to the millimeter level, laying a solid foundation for the immediate use of dental chairs.

[0018] 2. Reliable quality: The robust fixing method and effective finished product protection ensure the integrity of the casing in complex construction environments, achieving one-time pre-embedding and one-time high quality.

[0019] 3. Highly efficient construction: The pre-simulation of the proton model resolves potential pipeline conflicts before construction, greatly improving the efficiency and smoothness of the subsequent dental chair pipeline installation, and saving time and costs.

[0020] 4. Strong systematicity: This method forms a complete and closed-loop construction management process from early planning (model), process control (positioning and fixing) to post-construction protection, which has extremely high promotion value. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the present invention; Figures 2 to 4 This is a diagram of the sleeve structure of the present invention; Figure 5 This is a top view structural diagram of the present invention; Figure 6 This is a structural diagram of the pipeline assembly of the present invention installed on the sleeve; Figure 7 This is a structural diagram of the proton plate of the present invention; Figure 8 and 9 This is a schematic diagram of the fixing of the sleeve and the reinforcing cage according to the present invention; Figure 10 This is a schematic diagram of the steel cage of the present invention after it has been poured. Figure 11 This is a flowchart of the sleeve pre-embedding method of the present invention.

[0022] The attached diagram is labeled as follows: 1. Sleeve; 2. Piping assembly; 3. Proton plate; 4. Mounting plate; 5. Mounting hole; 6. Reinforcing rib; 7. Template; 8. Protective cover; 9. Cover; 10. Reinforcing cage; 11. Connecting rib; 12. Concrete; 201. Tap water inlet pipe; 202. Clean water inlet pipe; 203. Air inlet pipe; 204. Negative pressure suction pipe; 205. Negative pressure control conduit; 206. Power conduit; 207. Drain pipe; 208. Reserved connecting conduit for side cabinet; 301. Tap water inlet pipe; 302. Clean water inlet pipe; 303. Air inlet pipe; 304. Negative pressure suction pipe; 305. Negative pressure control conduit; 306. Power conduit; 307. Drain pipe; 308. Reserved connecting conduit for side cabinet. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] In the description of this invention, it should be understood that the terms center, longitudinal, transverse, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, and outer, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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 the invention. Furthermore, the terms first, second, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with first, second, etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, multiple means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, connection, and linking should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0027] like Figure 1 and combined Figures 2 to 11 As shown, a sleeve structure for dental chairs in dental hospitals includes a sleeve 1, a tubing assembly 2, and a proton plate 3. The tubing assembly 2 is installed inside the sleeve 1 via the proton plate 3. A plurality of mounting pieces 4 are provided on the bottom circumference of the sleeve 1. The mounting pieces 4 are provided with mounting holes 5. The mounting pieces 4 at the bottom of the sleeve 1 are fixed to the template 7 by screws.

[0028] Furthermore, the outer wall of the sleeve 1 is provided with reinforcing ribs 6, and concrete 12 is poured around the periphery of the sleeve 1.

[0029] Furthermore, the sleeve 1 is made of hot-dip galvanized steel pipe or stainless steel pipe.

[0030] Furthermore, the pipeline assembly 2 includes a tap water inlet pipe 201, a purified water inlet pipe 202, an air inlet pipe 203, a negative pressure shaft suction pipe 304, a negative pressure control conduit 205, a power supply conduit 206, a drain pipe 207, and a reserved connecting side cabinet pipe 208.

[0031] Furthermore, the proton plate 3 is provided with a water inlet pipe hole 301, a purified water inlet pipe hole 302, an air inlet pipe hole 303, a negative pressure shaft suction pipe hole 304, a negative pressure control line pipe hole 305, a power line pipe hole 306, a drain pipe hole 307, and a reserved connecting side cabinet pipe hole 308 corresponding to the pipeline assembly 2.

[0032] Furthermore, the proton plate 3 is made of hot-dip galvanized steel or stainless steel.

[0033] A method for pre-embedding a sleeve structure for dental chairs in a dental hospital, comprising the following steps: S1. Frame erection, formwork leveling or truss panel installation; S2, Layout of sleeve 1, positioning and installation of sleeve 1; S3, Construction of reinforcing steel around sleeve 1; S4. Measurement and verification, pour concrete 12, finished product protection.

[0034] Specifically, S1 involves erecting a frame on the structure and then laying template 7 or truss plate on the frame; S2 involves marking the installation position of sleeve 1 on template 7 or truss plate and then installing sleeve 1 at the marked predetermined position.

[0035] Specifically, step S3 involves erecting a steel cage 10 around the sleeve 1, and connecting the circumference of the sleeve 1 to the steel cage 10 via several connecting bars 11. Step S4 involves measuring whether the installation position meets the requirements, then covering the upper part of the sleeve 1 with a protective cover 8 (to prevent concrete 12 from entering the sleeve 1), pouring concrete 12 onto it, removing the protective cover 8 after pouring, placing a cover 9 on top, and allowing the concrete 12 to air dry.

[0036] After the concrete 12 has dried, remove the cover 9, place the corresponding pipeline component 2 into the sleeve 1 through the hole of the proton plate 3, and then pour cement to fix it.

[0037] Furthermore, the verticality deviation of the sleeve installation is controlled by an algorithm formula, which is as follows: ; in For the verticality deviation of the sleeve installation, This represents the number of measurement points along the height of the casing. This represents the deviation of the i-th measurement point relative to the central axis of the sleeve in the X-axis direction. This represents the deviation of the i-th measurement point in the Y-axis direction relative to the central axis of the casing; This is the average value of the X-axis deviation values ​​for all measurement points. This is the average value of the Y-axis deviation values ​​for all measurement points. The actual installation height of the sleeve; the verticality deviation of the sleeve installation. The requirement is δ≤0.5% to ensure smooth installation of piping components and accurate subsequent assembly of the dental chair.

[0038] Compared with the prior art, the present invention has the following advantages: This invention uses a welding lacing plate fixing + double-sided wire pulling technology to control the pre-embedding accuracy of more than 300 sleeves to the millimeter level, laying a solid foundation for the immediate use of dental chairs.

[0039] Reliable quality: The robust fixing method and effective finished product protection ensure the integrity of the casing in complex construction environments, achieving excellent results with a single pre-embedding.

[0040] Highly efficient construction: The pre-construction simulation of the proton model resolves potential pipeline conflicts before construction, greatly improving the efficiency and smoothness of subsequent dental chair pipeline installation, and saving time and costs.

[0041] Highly systematic: This method forms a complete and closed-loop construction management process from early planning (modeling), process control (positioning and fixing), to post-construction protection, and has extremely high promotional value.

[0042] Example 1: Example of pre-embedding the sleeve of a cast-in-place concrete slab apron This embodiment is applied to the conventional cast-in-place concrete slab area of ​​the outpatient area on floors 1-4 of the Meijiang Campus of Tianjin Stomatological Hospital. This area is equipped with 160 dental chairs, requiring the pre-embedding of 160 dental chair sleeves. The design requirements are that the sleeve coordinate error is ≤3mm, the height error is ≤2mm, and the top surface of the sleeve is 20mm higher than the finished building surface.

[0043] The casing body is made of Φ160mm thin-walled hot-dip galvanized steel pipe with a wall thickness of 3mm. A ring-shaped steel gusset plate (installation plate) is welded in the middle of the outer wall of the casing. The gusset plate has fixed installation holes, and a ring-shaped reinforcing rib is added to the outer wall to improve impact resistance and structural stability.

[0044] Proton board: Made of 3mm thick hot-dip galvanized steel sheet, with precise holes for 8 dental chair-specific pipelines. The holes are matched with Φ15 tap water pipe, Φ15 clean water pipe, Φ15 air inlet pipe, Φ25 negative pressure suction pipe, Φ20 power cord conduit, Φ20 negative pressure control conduit, Φ50 drain pipe, and Φ50 reserved connecting side cabinet pipe.

[0045] Piping components: Eight pipelines are prefabricated according to the design specifications and installed through a proton plate to avoid pipeline crossing and compression problems in advance.

[0046] Pre-embedded construction steps Erect a full-span scaffold, complete the fine leveling of the formwork, and control the flatness deviation of the formwork to ≤1mm; The double-sided cross-line method is used for layout and positioning to ensure that the sleeve is ≥1000mm from the front of the wall and ≥650mm from the side. The sleeve is then positioned according to the layout line. The sleeve gusset plate is fastened to the wooden formwork with self-tapping screws, and steel bars are tied around the sleeve. The sleeve is then tied to the steel cage with connecting bars. Measure and verify the sleeve coordinates, elevation, and verticality (control verticality deviation δ≤0.5%). After passing the verification, pour concrete. During the pouring process, arrange for surveyors to stand by and immediately reset the sleeve if there is any deviation. After the concrete is poured, a custom-made wooden formwork cover is used to seal the pipe opening, and warning signs are affixed to complete the protection of the finished product.

[0047] Implementation results: The coordinate error of the 160 pre-embedded sleeves is ≤2mm, the height error is ≤1.5mm, the verticality deviation is ≤0.4%, and the success rate of the installation of 8 pipelines is 100% on the first attempt, with no problems of blockage, deformation, or displacement.

[0048] Example 2: Example of pre-embedding of steel truss floor decking toothed sleeve This embodiment is applied to the steel truss floor deck area of ​​the outpatient area of ​​the Meijiang branch of Tianjin Stomatological Hospital. This area has 140 dental chairs and requires the pre-embedding of 140 dental chair sleeves. The construction conditions are that the steel truss floor deck is poured in combination with concrete, and the process is complex and the sleeve fixing is difficult.

[0049] The sleeve body is the same as in Example 1, using a Φ160mm hot-dip galvanized steel pipe with a wall thickness of 3mm, and equipped with an annular steel gusset plate and outer wall reinforcing ribs. The gusset plate is adapted to the floor deck for welding and fixing. Proton plate: Same as in Example 1, with 8 holes for precise positioning, adapted to the layout of 8 special pipelines in the dental chair; Fixing components: Screw accessories are eliminated, and spot welding is used to fix the gusset plate to the floor deck, which is suitable for the construction characteristics of steel truss floor decks.

[0050] Pre-embedded construction steps: Erect a full-span scaffolding structure and complete the detailed layout and standardized installation of the steel truss floor slabs; Double-sided string lines are used for positioning to ensure the sleeves are horizontally and vertically straight, and the distance from the wall must be strictly adhered to. After the sleeve is in place, the gusset plate is spot welded to the steel truss floor deck panel and the floor deck reinforcement is tied to enhance the overall stability of the sleeve. Measure and verify the casing elevation, plane position, and verticality (δ≤0.5%). After the standard is met, pour the composite layer concrete and monitor the entire pouring process on-site. Install custom-made protective caps to seal pipe openings and affix warning signs to complete finished product protection.

[0051] Implementation results: The accuracy of all 140 pre-embedded sleeves met the standards, with no issues of displacement, tilting, floating, or blockage. The installation and connection of the dental chair equipment required zero rework, meeting the hospital's subsequent usage requirements.

[0052] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A sleeve structure for use in dental chairs in dental hospitals, characterized in that: It includes a sleeve (1), a pipeline assembly (2) and a proton plate (3). The pipeline assembly (2) is installed inside the sleeve (1) through the proton plate (3). The bottom circumference of the sleeve (1) is provided with a plurality of mounting pieces (4). The mounting pieces (4) are provided with mounting holes (5). The mounting pieces (4) at the bottom of the sleeve (1) are fixed to the template (7) by screws.

2. The sleeve structure for a dental chair in a dental hospital as described in claim 1, characterized in that: The outer wall of the sleeve (1) is provided with reinforcing ribs (6).

3. The sleeve structure for a dental chair in a dental hospital as described in claim 1, characterized in that: The sleeve (1) is made of hot-dip galvanized steel pipe or stainless steel pipe.

4. The sleeve structure for a dental chair in a dental hospital as described in claim 1, characterized in that: The pipeline assembly (2) includes a tap water inlet pipe (201), a purified water inlet pipe (202), an air inlet pipe (203), a negative pressure suction pipe (204), a negative pressure control line pipe (205), a power line pipe (206), a drain pipe (207), and a reserved connecting side cabinet pipe (208).

5. A sleeve structure for a dental chair in a dental hospital as described in claim 1, characterized in that: The proton plate (3) is provided with a water inlet pipe hole (301), a purified water inlet pipe hole (302), an air inlet pipe hole (303), a negative pressure suction pipe hole (304), a negative pressure control line pipe hole (305), a power line pipe hole (306), a drain pipe hole (307), and a reserved connecting side cabinet pipe hole (308) corresponding to the pipeline assembly (2).

6. The sleeve structure for a dental chair in a dental hospital as described in claim 1, characterized in that: The proton plate (3) is made of hot-dip galvanized steel plate or stainless steel plate.

7. A method for pre-embedding a sleeve structure for a dental chair in a dental hospital as described in any one of claims 1-6, characterized in that: The steps are as follows: S1, scaffolding erection, formwork (7) leveling or truss plate laying; S2, sleeve (1) layout, sleeve (1) positioning and installation; S3, sleeve (1) surrounding reinforcement construction; S4, measurement verification, concrete pouring (12), finished product protection.

8. The method for pre-embedding a sleeve structure for a dental chair in a dental hospital as described in claim 7, characterized in that: S1 specifically involves erecting a frame on the structure and then laying a template (7) or truss plate on the frame; S2 specifically involves marking the installation position of the sleeve (1) on the template (7) or truss plate and then installing the sleeve (1) at the predetermined position marked on the template (7) or truss plate.

9. The method for pre-embedding a sleeve structure for a dental chair in a dental hospital as described in claim 7, characterized in that: In step S3, a steel cage (10) is erected around the sleeve (1), and the circumference of the sleeve (1) is connected to the steel cage (10) by several connecting bars (11). In step S4, the specific steps are to measure whether the installation position meets the requirements, then put a protective cover (8) on the upper part of the sleeve (1), and pour concrete (12).

10. The method for pre-embedding a sleeve structure for a dental chair in a dental hospital as described in claim 9, characterized in that: The verticality deviation of the sleeve installation is controlled by an algorithm formula, which is: ; in For the verticality deviation of the sleeve installation, This represents the number of measurement points along the height of the casing. This represents the deviation of the i-th measurement point relative to the central axis of the sleeve in the X-axis direction. This represents the deviation of the i-th measurement point in the Y-axis direction relative to the central axis of the casing; This is the average value of the X-axis deviation values ​​for all measurement points. This is the average value of the Y-axis deviation values ​​for all measurement points. The actual installation height of the sleeve; the verticality deviation of the sleeve installation. The requirement is δ≤0.5% to ensure smooth installation of piping components and accurate subsequent assembly of the dental chair.