Adjustable multifunctional plate thickness control device
By designing an adjustable multi-functional plate thickness control device, and adjusting the distance between the upper and lower control parts by threaded connections, the problem of low plate thickness control accuracy in the prior art is solved, and more efficient plate thickness control and cost reduction are achieved.
Patent Information
- Application Number
- CN202421187640.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing concrete slab thickness control technology has low accuracy and is easily affected by human factors, resulting in slab thickness errors and increasing material and labor costs.
An adjustable multi-functional plate thickness control device is designed to adjust the plate thickness through the threaded connection between the upper and lower control parts to ensure parallel settings and controllable distances between the double-layer steel mesh.
It improves the accuracy of slab thickness control, reduces the use of concrete pads and horse stool ribs, reduces material and labor costs, and meets the slab thickness control of different design needs.
Smart Images
Figure CN222595547U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of floor slab construction devices, in particular to an adjustable multifunctional slab thickness control device. Background Art
[0002] Concrete floor slabs are part of the building structure, which mainly bears the vertical load from the horizontal direction, and can also divide the building into several floors in the height direction to form different use spaces. Accurately controlling the thickness of concrete slabs will help save materials and reduce carbon emissions. Even if the thickness of each floor slab is only 1mm more than the design elevation, the accumulated thickness error of hundreds of floors will result in high material costs. In more serious cases, it will lead to failure of project acceptance, which will greatly affect the construction of the project. The current construction industry requires the flatness and thickness of cast-in-place concrete slabs to be controlled within -5 to +8mm, that is, the design elevation of the slab thickness can be 8mm more or less than 5mm. However, for large-area cast-in-place concrete slabs, the traditional concrete slab surface control uses concrete pads to control the distance between the steel bars and the bottom of the formwork, and the distance between the upper and lower double-layer steel bars is controlled by horse stool bars. The horse stool bars can pass through the lower steel bars to support the bottom of the upper steel bars. During the pouring of the concrete panel, the height is controlled by the wire pulling method and the insertion method. However, the traditional technical solution has low accuracy and is greatly affected by human factors. Factors such as worker fatigue and operating techniques may lead to the inability to fully cover the implementation, thereby affecting the precise control of the slab thickness, and it is easy to increase the labor and material costs of the enterprise. Therefore, our company proposes a new device to control the thickness and flatness of the concrete slab. Utility Model Content
[0003] The utility model provides an adjustable multifunctional plate thickness control device to solve the problem of low precision of the existing plate thickness control technology.
[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: an adjustable multifunctional plate thickness control device, comprising an upper control part and a lower control part that are detachably connected, the upper control part comprising a top control plate, a sleeve steel bar, and an upper steel bar bracket, the lower control part comprising a bottom supporting steel plate, a bolt steel bar, and a lower steel bar bracket; the sleeve steel bar is axially vertically connected to the lower surface of the top control plate, the upper steel bar bracket is axially horizontal and centrally symmetrically arranged on the circumferential side wall of the sleeve steel bar, the bolt steel bar is axially vertically connected to the upper surface of the bottom supporting steel plate, the lower steel bar bracket is axially horizontal and symmetrically arranged on the circumferential side wall of the bolt steel bar, and the sleeve steel bar and the bolt steel bar can be threadedly connected.
[0005] The basic principle of this scheme is: the sleeve steel bars on the upper control part and the lower control part are connected with the bolt steel bars by thread, and the distance between the upper control part and the lower control part is adjusted by the feed amount of the thread, thereby driving the upper steel bar bracket on the upper control part and the lower steel bar bracket on the lower control part to move away from or close to each other. After the upper and lower control parts are connected, they are placed flat on the laid concrete formwork to ensure that the screw is perpendicular to the plate surface, the lower steel mesh is laid on the lower steel bar bracket, and the upper steel bar is laid on the upper steel bar bracket, thereby ensuring that the double-layer steel meshes are arranged in parallel and the distance is controllable. The top control plate of the upper control part is the elevation of the finished surface of the concrete pouring of the plate component, which is used as a reference point for leveling during the concrete pouring process.
[0006] The beneficial effects of this scheme are as follows: the existing plate thickness control technology uses concrete pads and saddle bars to adjust and stabilize the double-layer steel mesh, which has low accuracy and easily leads to height errors after the concrete floor is poured, resulting in high costs and other consequences. The device proposed in this scheme uses threaded disassembly to connect the upper and lower control parts, and controls and adjusts the plate thickness according to the number of screwed-in threads, reducing the setting of concrete pads and the supporting steel bars (saddle bars) of the plate steel bars. In addition, the thickness adjustment of the plate can be controlled according to the different designed plate thicknesses, thereby meeting different design requirements. It has a simple structure and is easy to install and debug.
[0007] Furthermore, the opening of the sleeve steel bar faces downward, an internal thread is formed on the lower inner wall of the sleeve steel bar, and an external thread is formed on the upper outer wall of the bolt steel bar, and the internal thread matches the external thread.
[0008] Furthermore, the upper end of the sleeve steel bar is welded to the midpoint of the lower surface of the top control plate, and the lower end of the bolt steel bar is welded to the midpoint of the upper surface of the bottom supporting steel plate. The sleeve steel bar, bolt steel bar, upper steel bar bracket, and lower steel bar bracket are all coaxially arranged.
[0009] Furthermore, the top control plate and the bottom support steel plate are both square steel plates with a thickness of 0 to 2 mm and a size of 5 cm*5 cm.
[0010] Furthermore, the top control plate and the bottom support steel plate are both disc steel plates with a thickness of 0 to 2 mm and a diameter of 5 cm. The circular steel plates have no sharp edges, which reduces the risk of worker injury during construction and also reduces the possibility of damage to the concrete formwork.
[0011] Furthermore, the surfaces of the upper steel bar support and the lower steel bar support are respectively provided with upward notches, which penetrate the side walls of the upper steel bar support and the lower steel bar support, and the notches can be used for the steel mesh to be built. The steel bars are passed through the notches, and the two opposite inner walls of the notches are used to limit the steel bars, so as to reduce the slippage of the steel bars in the horizontal direction, and the structure is more stable.
[0012] Furthermore, the number of notches on the upper steel bar support and the number of notches on the lower steel bar support are two respectively, and the notches are symmetrically arranged along the upper steel bar support and the lower steel bar support respectively. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the assembly of an embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of the upper control unit in an embodiment of the utility model;
[0015] Figure 3 It is a schematic diagram of the lower control part in the embodiment of the utility model;
[0016] Figure 4 This is a schematic diagram of the shape of the top plate control sheet and the bottom supporting steel plate in the embodiment of the utility model;
[0017] Figure 5 This is a schematic diagram of the overall assembly of Example 2 of the utility model;
[0018] Figure 6 This is a schematic diagram of the shape of the top plate control plate and the bottom supporting steel plate in Example 2 of the utility model. DETAILED DESCRIPTION
[0019] The following is further described in detail through specific implementation methods:
[0020] The figure marks in the drawings of the specification include: top plate control plate 1, sleeve steel bar 2, upper steel bar bracket 3, internal thread 4, bottom support steel plate 5, bolt steel bar 6, external thread 7, lower steel bar bracket 8, and notch 9.
[0021] Embodiment 1:
[0022] Embodiment 1 is basically as attached Figure 1 To Attachment Figure 4 As shown:
[0023] An adjustable multifunctional plate thickness control device comprises an upper control part and a lower control part, wherein the upper control part and the lower control part are detachably connected via threads.
[0024] The upper control part includes a top plate control plate 1, an upper steel bar support 3, and a sleeve steel bar 2. The top plate control plate 1 is horizontally arranged, and the sleeve steel bar 2 is vertically arranged on the bottom surface of the top plate control plate 1. The upper end of the sleeve steel bar 2 is welded to the bottom surface of the top plate control surface. The central axis of the sleeve steel bar 2 passes through the midpoint of the top plate control plate 1, and the sleeve steel bar 2 is perpendicular to the top plate control plate 1. The opening of the sleeve steel bar 2 is downward, and an internal thread 4 is opened on the inner wall of the sleeve steel bar 2 along the length of the sleeve steel bar 2.
[0025] The upper steel bar support 3 is axially horizontally arranged and parallel to the bottom of the top plate control plate 1. In this embodiment, the upper steel bar support 3 includes two steel bars, and the two steel bars are welded symmetrically along the center of the sleeve steel bar 2. The upper steel bar support 3 can support the upper steel bar of the double-layer steel bar in the concrete floor. Specifically, the diameter of the steel bar is 6 mm and the length is 2 cm.
[0026] The lower control part includes a bottom supporting steel plate 5, a lower steel bar bracket 8, and bolt steel bars 6. The bottom supporting steel plate 5 is horizontally arranged. The upper surface of the bottom supporting steel plate 5 is connected to the axially vertical bolt steel bars 6. The lower end of the bolt steel bars 6 is welded to the center of the upper surface of the bottom supporting steel plate 5. The upper end outer wall of the bolt steel bars 6 is provided with an external thread 7. The bolt steel bars 6 can be matched with the lower end of the steel bar sleeve through the external thread 7, so that the upper and lower control parts are threadedly connected.
[0027] An axially horizontal lower steel bar support 8 is arranged between the bolt steel bar 6 and the bottom supporting steel plate 5. The lower steel bar support 8 also includes two steel bars. The lower steel bar support 8 can be used to lift and connect the lower steel bars of the double-layer steel bars in the concrete floor. Specifically, the diameter of the steel bar is 6 mm and the length is 2 cm.
[0028] Specifically, the steel base in this embodiment is a square steel plate with a thickness of 1 to 2 mm and a size of 5 cm*5 cm. The bolt steel bar 6 has a diameter of 8 mm and a length of 8 cm, and is processed into an external thread 7 within 5 cm of the top. Two lower steel bar brackets 8 are welded at a distance of 15 mm from the bottom of the bolt steel bar 6.
[0029] The top plate control plate 1 in this embodiment is a square steel plate with a thickness of 0.5-1mm and a size of 5cm*5cm. The diameter of the sleeve steel bar 2 is 10mm and the length is 10cm. The internal thread 4 is processed within 5cm of the bottom. Two upper steel bar supports 3 are welded at 15mm from the top of the sleeve steel bar 2.
[0030] The specific implementation process is as follows:
[0031] The sleeve steel bar 2, the top control plate, and the upper steel bar support 3 are welded to form the upper control part, and the bolt steel bar 6, the bottom support steel plate 5, and the lower steel bar support 8 are welded to form the lower control part. The sleeve steel bar 2 and the bolt steel bar 6 are threadedly connected to adjust the height between the upper control part and the lower control part to the preset plate thickness size. The plate thickness control device composed of multiple upper and lower control parts is placed on the upper surface of the laid template at intervals to ensure that the screw is perpendicular to the plate surface. The staff lays the first layer of steel mesh on the lower steel bar support 8, and then lays the second layer of steel mesh on the upper steel bar support 3, thereby completing the height control of the two layers of steel bars. After the double-layer steel bars are laid, the mixed concrete is poured on the surface of the template and vibrated. The surface of the concrete just covers the top control plate. At the same time, the top surface control piece of the upper control part is the elevation of the finished surface of the concrete pouring of the plate component, which is used as the reference point for leveling during the concrete pouring process.
[0032] Embodiment 2:
[0033] Embodiment 2 is basically as attached Figure 5 To Attachment Figure 6 As shown:
[0034] The difference between Example 2 and Example 1 is that the top plate control piece 1 and the bottom support steel plate 5 in Example 2 are both in the shape of a disc, the bottom support steel plate 5 is a circular steel plate with a thickness of 1 to 2 mm and a diameter of 5 cm, and the top plate control piece 1 is a circular steel plate with a thickness of 0.1 to 1 mm and a diameter of 5 cm. The circular steel plate has no sharp edges and corners, which reduces the risk of injury to workers during construction and also reduces the possibility of damage to the concrete formwork.
[0035] In this embodiment, the top surfaces of the upper steel bar support 3 and the lower steel bar support 8 are both provided with notches 9, the openings of the notches 9 face upward, and the notches 9 can just accommodate the steel bars in the upper and lower steel meshes to pass through.
[0036] In this embodiment, the threads of the bolt reinforcement 6 and the sleeve reinforcement 2 are designed to change in height by 1 mm for every 360° rotation, thereby more accurately controlling the height between the entire upper and lower control parts.
[0037] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An adjustable multifunctional plate thickness control device, characterized in that: It includes an upper control part and a lower control part which are detachably connected. The upper control part includes a top control plate, sleeve steel bars, and an upper steel bar bracket. The lower control part includes a bottom support steel plate, bolt steel bars, and a lower steel bar bracket. The sleeve steel bar is axially and vertically connected to the lower surface of the top control plate, the upper steel bar support is axially and horizontally and symmetrically arranged on the circumferential side wall of the sleeve steel bar, the bolt steel bar is axially and vertically connected to the upper surface of the bottom supporting steel plate, the lower steel bar support is axially and horizontally and symmetrically arranged on the circumferential side wall of the bolt steel bar, and the sleeve steel bar and the bolt steel bar can be threadedly connected.
2. The adjustable multifunctional plate thickness control device according to claim 1, characterized in that: The opening of the sleeve steel bar faces downwards, an internal thread is formed on the inner wall of the lower part of the sleeve steel bar, and an external thread is formed on the outer wall of the upper end of the bolt steel bar, and the internal thread matches the external thread.
3. The adjustable multifunctional plate thickness control device according to claim 2, characterized in that: The upper end of the sleeve steel bar is welded to the midpoint of the lower surface of the top control plate, and the lower end of the bolt steel bar is welded to the midpoint of the upper surface of the bottom supporting steel plate. The sleeve steel bar, bolt steel bar, upper steel bar bracket and lower steel bar bracket are all coaxially arranged.
4. The adjustable multifunctional plate thickness control device according to claim 3, characterized in that: The top control plate and the bottom support steel plate are both square steel plates with a thickness of 0 to 2 mm and a size of 5 cm*5 cm.
5. The adjustable multifunctional plate thickness control device according to claim 3, characterized in that: The top control plate and the bottom support steel plate are both disc steel plates with a thickness of 0 to 2 mm and a diameter of 5 cm.
6. The adjustable multifunctional plate thickness control device according to claim 5, characterized in that: The surfaces of the upper steel bar support and the lower steel bar support are respectively provided with upward notches, the notches penetrate the side walls of the upper steel bar support and the lower steel bar support, and the notches can be used for the constructed steel mesh to pass through.
7. The adjustable multifunctional plate thickness control device according to claim 6, characterized in that: The number of the notches on the upper steel bar support and the number of the notches on the lower steel bar support are two respectively, and the notches are symmetrically arranged along the upper steel bar support and the lower steel bar support respectively.