Simple measuring device for arching height of double-T plate

Abstract

The utility model belongs to the technical field of precast concrete components, and particularly relates to a simple measuring device for the camber height of a double-T plate. The simple measuring device comprises two U-shaped clamps so as to be stably fixed on rib parts at two ends of the double-T plate. One of the U-shaped clamps is provided with a wire wheel, a measuring wire and a locking knob, a field measurer straightens the measuring wire between the two U-shaped clamps through the locking knob in the measuring process, and the arching height between the midspan rib part of the double-T plate and the measuring wire can be measured only by using a steel ruler. The simple measuring device designed by the utility model has the advantages of simplicity and convenience in operation, accuracy in measurement, stable structure and the like, realizes accurate measurement of the camber height of the double-T plate, solves the problems of insufficient precision and complicated operation in the conventional measuring method, and has important significance in ensuring the safety and quality of the structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated concrete components, and in particular relates to a simple measuring device for the arch height of a double T-plate. Background Art

[0002] In the current construction industry, double T-plates, as an important prefabricated reinforced concrete load-bearing component, are widely used in large-span and large-coverage building structures due to their unique structural design and economic advantages. This component consists of a wide panel and two narrow and high ribs. It not only has excellent structural mechanical properties, but also has a clear force transmission level and a simple geometric shape. However, in the actual production and construction process of double T-plates, it is crucial to ensure that their quality meets the standards. Therefore, according to the group standard "Prestressed Double T-Slabs" formulated by the industry, the allowable error in the size of the double T-plate, especially the bottom anti-arch height, must be controlled within 50mm. For double T-plates with relatively large spans, this makes anti-arch inspection an important and complex link.

[0003] At present, two methods are commonly used on construction sites to check the height of the double T-plate: the wire pulling method and the theodolite-tower method. Although the wire pulling method is simple to operate, it requires at least three people to cooperate at the same time and is easily affected by human factors (such as the wire is not straight), resulting in low measurement accuracy. The theodolite-tower method requires at least two people to cooperate and obtain the height of the double T-plate through a complex measurement and calculation process. However, since the bottom of each double T-plate may not be in the same plane, the instrument needs to be leveled before each measurement, which greatly increases the complexity and time-consuming of the measurement. In addition, the amount of calculation in the later stage is also large, which further reduces the inspection efficiency.

[0004] In summary, the existing double T-plate anti-arch inspection method has problems such as low instrument measurement efficiency, low accuracy, and large personnel requirements. Therefore, how to design a more efficient, accurate, and convenient inspection method is of great significance to improving the production quality and construction efficiency of double T-plates. Utility Model Content

[0005] Aiming at the problems in the background technology that the common on-site inspection methods have low instrument measurement efficiency, low accuracy and large personnel requirements, the utility model provides a simple measuring device for the arch height of a double T-plate.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A simple measuring device for the camber height of a double-T slab, comprising two U-shaped clamps with the same structure. Each U-shaped clamp includes a U-shaped bracket, on which a screw hole joint is fixedly connected. A screw rod is arranged in the screw hole joint. One end of the screw rod is provided with a pressure plate, and the other end is provided with a lever. Gaskets opposite to the pressure plates are arranged on the two U-shaped brackets. Calipers are arranged on one side of the lower ends of the two U-shaped brackets. A wire wheel is rotatably arranged on one of the U-shaped brackets. A measuring wire is wound on the wire wheel. A stop piece is arranged at the end of the measuring wire. The stop piece uses the caliper to temporarily fix the length of the pulled-out measuring wire. The measuring wire ensures that the wire outlet position is consistent with the fixed position through the two calipers. A steel ruler is used to measure the camber height between the mid-span rib of the double-T slab and the measuring wire.

[0007] As a further supplementary description of the above technical solution, a support seat is arranged in the middle of the two U-shaped brackets, and the top surface of the support seat is on the same horizontal plane as the straightened measuring wire.

[0008] As a further supplementary description of the above technical solution, the wire wheel is installed on the U-shaped bracket through a fixing rod. A locking screw hole is axially arranged on the fixing rod, and a locking knob is threadedly connected therein. The locking knob contacts the hub surface of the wire wheel by screwing in to achieve the braking function.

[0009] As a further supplementary description of the above technical solution, a corrugated brake disc is arranged on the wire wheel, and a brake ring corresponding to the corrugated brake disc is arranged on the locking knob.

[0010] As a further explanation and limitation of the above technical solution, the caliper is a right-angled plate member. An adjusting screw hole, an S-shaped guiding groove and a wire hole communicated with it are respectively arranged on the right-angled plate member. The right-angled plate member is fixed on the U-shaped bracket by a bolt passing through the adjusting screw hole, and the measuring wire enters the wire hole through the S-shaped guiding groove.

[0011] As a further supplementary description of the above technical solution, a handle is arranged on the wire wheel to facilitate on-site personnel to quickly wind up the wire.

[0012] As a further supplementary description of the above technical solution, wire grooves are radially arranged on the edge of the wheel disc of the wire wheel, and the wire grooves are used to prevent the measuring wire from slipping and cooperate with the caliper to quickly let out the wire.

[0013] Compared with the existing measurement method, using the utility model to measure the camber height of the double-T slab has the following advantages:

[0014] 1. The utility model is fixed on the ribs at both ends of the double-T plate by using U-shaped clamps, and then the measuring line is kept taut during the measurement process by tightening the locking knob, avoiding errors caused by the slack of the measuring line. The on-site measurement personnel only need to use a steel ruler to measure the camber height between the mid-span rib of the double-T plate and the measuring line. This not only effectively reduces the errors caused by unstable fixation or inaccurate measuring tools, but also reduces the operation complexity, significantly improves the efficiency of the measurement work, and provides double guarantee for the accuracy of the measurement data.

[0015] 2. By adding the design of the corrugated brake disc and the brake ring, and cooperating with the wire groove and the caliper, the utility model ensures the stability of the measuring line during the measurement process, effectively prevents the accidental loosening of the measuring line during use, and makes the measurement result more reliable and accurate.

[0016] 3. The utility model designs a handle on the wire wheel, simplifying the process of taking in and paying out the measuring line, enabling the on-site measurement personnel to operate quickly and conveniently.

[0017] 4. The utility model has the advantages of simple structure, easy manufacturing and maintenance, is applicable to double-T plates with relatively large spans and can quickly measure their camber heights, reducing the production costs of enterprises and further improving the inspection efficiency.

[0018] 5. The utility model is not only applicable to the measurement of the camber height of double-T plates, but can also be adjusted according to needs and is applicable to the quality acceptance work of other similar structures. Description of the Drawings

[0019] Figure 1 is a perspective view of the simple measuring device in the utility model;

[0020] Figure 2 is a structural diagram of the simple measuring device in the utility model;

[0021] Figure 3 is a structural diagram of the wire wheel in the embodiment of the utility model;

[0022] Figure 4 is a structural diagram of the locking knob in the embodiment of the utility model;

[0023] Figure 5 is a structural diagram of the caliper in the embodiment of the utility model;

[0024] Figure 6 is a reference diagram for the simple measuring device in the utility model to measure the camber height of a double-T plate.

[0025] In the figure: The U-shaped bracket is 1, the screw hole joint is 2, the screw rod is 3, the pressure plate is 4, the lever is 5, the gasket is 6, the support base is 7, the caliper is 8, the wire wheel is 9, the measuring wire is 10, the retaining piece is 11, the fixing rod is 12, the locking screw hole is 13, the locking knob is 14, the handle is 15, the corrugated brake disc is 16, the wire groove is 17, and the brake ring is 18.

[0026] Among them, the caliper includes: the right-angle plate part is 801, the adjusting screw hole is 802, the S-shaped guiding groove is 803, and the wire hole is 804. Specific implementation mode

[0027] In order to further elaborate on the technical solution of the present invention, the following combines the attached Figures 1 to 6 , and we further illustrate the present invention through four embodiments according to the on-site implementation process. Embodiment 1

[0028] As shown in the attached Figure 1 , 2 , 5, and 6, a simple measuring device for the camber height of a double T-shaped slab includes two U-shaped jigs with the same structure. Each U-shaped jig includes a U-shaped bracket 1. A screw hole joint 2 is fixedly connected to the U-shaped bracket 1. A screw rod 3 is arranged in the screw hole joint 2. One end of the screw rod 3 is provided with a pressure plate 4, and the other end is provided with a lever 5. Gaskets 6 opposite to the pressure plate 4 are arranged on the two U-shaped brackets 1. A support base 7 is arranged in the middle of the two U-shaped brackets 1. Calipers 8 are arranged on one side of the lower ends of the two U-shaped brackets 1. The caliper 8 is a right-angle plate part 801. An adjusting screw hole 802, an S-shaped guiding groove 803, and a wire hole 804 communicating therewith are respectively arranged on the right-angle plate part 801. The right-angle plate part 801 is fixed on the U-shaped bracket 1 by a bolt passing through the adjusting screw hole 802. A wire wheel 9 is rotatably arranged on one of the U-shaped brackets 1 through a fixing rod 12. A measuring wire 10 is wound on the wire wheel 9. A retaining piece 11 is arranged at the end of the measuring wire 10. The measuring wire 10 enters the wire hole 804 through the S-shaped guiding groove 803. A locking screw hole 13 is axially arranged on the fixing rod 12, and a locking knob 14 is threadedly connected therein. The locking knob 14 is in contact with the hub surface of the wire wheel 9 by screwing in to achieve the braking function, so as to ensure that the measuring wire between the two U-shaped jigs is in a straight state and ensure the accuracy of the measuring data. Embodiment 2

[0029] On the basis of Embodiment 1, this embodiment provides an improved measuring device. As shown in the attached Figure 3 and 4As shown, a corrugated brake disc 16 is provided on the wire reel 9, and a brake ring 18 corresponding to the corrugated brake disc 16 is provided on the locking knob 14. With this structure, when the locking knob 14 is tightened, the brake ring 18 contacts the corrugated brake disc 16, thereby realizing the braking of the wire reel 9. This improvement can more effectively prevent measurement errors caused by accidental loosening of the measuring wire 10 during use, and further improve the accuracy of measurement data. Embodiment III

[0030] For the convenience of on-site surveyors to operate, quickly take in the wire and adjust the tension. As shown in the appendix Figure 2 As shown, on the basis of Embodiment I, a handle 15 is provided on the wire reel 9, enabling on-site personnel to quickly and conveniently take in the wire. The setting of the handle 15 greatly simplifies the process of taking in and releasing the measuring wire 10, improves work efficiency, and also makes the device more user-friendly and convenient for on-site surveyors to use. Embodiment IV

[0031] To prevent the measuring wire from slipping and affecting the accuracy of measurement data. As shown in the appendix Figure 2 As shown, on the basis of Embodiment I, wire grooves 17 are radially arranged on the edge of the wheel disc of the wire reel 9. In addition, the wire grooves 17 cooperate with the caliper 8 to enable quick wire outlet, ensuring that the measuring wire 10 remains stable during the measurement process, thereby guaranteeing the accuracy of measurement data.

[0032] The measurement process and working principle: During the actual measurement process, on-site surveyors fix two U-shaped clamps on the ribs at both ends of one side of the double T-board respectively, pull out the measuring wire 10 from the wire reel 9, then insert the retaining piece 11 into the wire hole 804 of the caliper 8 to temporarily fix the length of the pulled-out measuring wire 10. Then, use the handle 15 to rotate the wire reel 9 to take in the measuring wire 10, ensure that the wire outlet position is consistent with the fixed position, and make the straightened measuring wire 10 and the rib of the double T-board end part be on the same horizontal plane through the support seat 7. Finally, use a steel ruler to measure the camber height between the mid-span rib of the double T-board and the measuring wire 10.

[0033] The following details the measurement steps and working methods of this device:

[0034] In the process of on-site measurement, first, on-site surveyors will accurately install two specially designed U-shaped clamps on one side of the double T-board, specifically on the rib structures at both ends. The purpose of doing this is to ensure the stability and accuracy of the measurement reference. At the same time, through the support of the support seat 7, the straightened measuring wire 10 is kept on the same horizontal plane as the rib of the double T-board end part. This step is crucial because it ensures the verticality and accuracy of the measurement result.

[0035] Subsequently, the surveyor will draw out the measuring line 10 from the wire reel, and skillfully insert the baffle 11 on the U-shaped fixture on the other far end side into the wire hole 804 of the caliper 8. This operation realizes the temporary fixation of the current length of the measuring line, ensuring the continuity and accuracy of the measurement.

[0036] Next, the surveyor will rotate the wire reel 9 using the handle 15 to retract part of the measuring line 10 by the wire reel, and then lock the wire 9 using the locking knob 14. The purpose of this step is to adjust the position of the measuring line to ensure that the wire outlet position of the measuring line is consistent with the previous fixed position, making the measuring line taut, thereby avoiding measurement errors.

[0037] Finally, using a steel ruler, which is a precise measuring tool, the surveyor will measure the vertical distance between the mid-span rib of the double-T slab and the measuring line 10. This distance is the camber height of the double-T slab, and it is determined whether the camber height is within 50 mm.

[0038] The above shows and describes the main features and advantages of the present utility model. For those skilled in the art, it is obvious that the specific implementation manners of the present utility model are not limited to the details of the above exemplary embodiments. Moreover, without departing from the spirit or basic features of the present utility model, the creative ideas and design concepts of the present utility model can be implemented in other specific forms, which should be equally within the protection scope disclosed in the technical solution of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0039] In addition, it should be understood that although this specification is described according to the implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A simple measuring device for the arch height of a double T-plate, comprising two U-shaped fixtures of the same structure, each U-shaped fixture comprising a U-shaped bracket (1), a screw hole joint (2) fixedly connected to the U-shaped bracket (1), a screw rod (3) arranged in the screw hole joint (2), a pressure plate (4) arranged at one end of the screw rod (3), and a trigger rod (5) arranged at the other end thereof, and gaskets (6) opposite to the pressure plate (4) are arranged on the two U-shaped brackets (1), characterized in that: A caliper (8) is provided on one side of the lower end of each of the two U-shaped brackets (1); a wire wheel (9) is rotatably provided on one of the U-shaped brackets (1); a measuring wire (10) is wound around the wire wheel (9); a baffle (11) is provided at the end of the measuring wire (10); the baffle (11) uses the caliper (8) to temporarily fix the length of the pulled-out measuring wire (10); the measuring wire (10) passes through the two calipers (8) to ensure that the wire outlet position is consistent with the fixed position; and a steel ruler is used to measure the arch height between the mid-span rib of the double T-plate and the measuring wire (10).

2. A simple measuring device for the arch height of a double T-plate according to claim 1, characterized in that: A support seat (7) is provided in the middle of the two U-shaped brackets (1), and the top surface of the support seat (7) is at the same level as the straightened measuring line (10).

3. The simple measuring device for the arch height of a double T-plate according to claim 1, characterized in that: The wire wheel (9) is mounted on the U-shaped bracket (1) via a fixing rod (12); a locking screw hole (13) is axially arranged on the fixing rod (12); a locking knob (14) is connected to the inner thread of the locking screw hole; the locking knob (14) is screwed into contact with the hub surface of the wire wheel (9) to achieve a braking function.

4. A simple measuring device for the arch height of a double T-plate according to claim 3, characterized in that: A corrugated brake disc (16) is arranged on the wire wheel (9), and a brake ring (18) corresponding to the corrugated brake disc (16) is arranged on the locking knob (14).

5. A simple measuring device for the arch height of a double T-plate according to any one of claims 1 to 4, characterized in that: The caliper (8) is a right-angled plate (801), on which are respectively provided an adjustment screw hole (802), an S-shaped guide groove (803), and a wire hole (804) communicating therewith; the right-angled plate (801) is fixed to the U-shaped bracket (1) by means of a bolt passing through the adjustment screw hole (802); and the measuring wire (10) enters the wire hole (804) through the S-shaped guide groove (803).

6. A simple measuring device for the arch height of a double T-plate according to claim 5, characterized in that: A handle (15) is provided on the wire wheel (9) to facilitate on-site personnel to quickly reel in the wire.

7. A simple measuring device for the arch height of a double T-plate according to claim 6, characterized in that: Wire grooves (17) are radially arranged on the edge of the wheel disc on the wire wheel (9), and the wire grooves (17) are used to prevent the measuring wire (10) from slipping and cooperate with the caliper (8) to quickly output the wire.

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