Fixing device for running water seam template of pavement drainage ditch

Abstract

A pavement drainage ditch running water seam formwork fixing device is characterized by comprising a fixing rod and a plurality of annular fixing pieces, the fixing rod is a hollow pipe, the annular fixing pieces are arranged outside the fixing rod in a sleeving mode, each annular fixing piece comprises a limiting disc and a limiting ring, the limiting disc is provided with a step-shaped base, the upper portion of the limiting disc is a fixing part, and a through groove is formed in the circumference of the fixing part in the axial direction; at least two through grooves are uniformly distributed along the circumference, so that the fixing part has elasticity, the inner diameter of the limiting ring is matched with the outer diameter of the fixing part after the through grooves are contracted, the fixing part clamps the fixing rod under the action of the limiting ring, limiting devices are fixed at the two ends of the fixing rod, and the outer diameter of each limiting device is larger than the inner diameter of the annular fixing part, so that the annular fixing part is prevented from being disengaged. The utility model has the advantages of simple structure, light weight, convenience in operation, low manufacturing cost and convenience in transportation and storage. And not only can the running water seam templates with different thicknesses be met, but also the running water seam templates with different intervals can be met. The method is suitable for drainage ditch construction of airport pavements, expressways and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, concretely relates to a pavement drainage ditch running water joint template fixing device. BACKGROUND

[0002] The water collecting opening of the airport pavement drainage system is an important component of the drainage facility, undertakes the heavy responsibility of rapidly collecting surface runoff of the whole airport and guiding water flow into the drainage system, and prevents the pavement from being affected by the stability of the structure by accumulated water.

[0003] Due to the particularity of continuous operation of the airport drainage ditch and the design specification requirement, the manufacturing process of the running water joint is as follows: first, the running water joint template is placed according to the designed distance, and then the steel bars are used to fix and position the running water joint template. Figure 1 As shown in the figure, the length of the general running water joint template single plate is 1m, the thickness is 0.04m, and the height is 0.4m. The fixing usually adopts the steel bars 8 with a diameter of more than 8mm to fix the two downward fixing pieces 7 at intervals, the interval of the two fixing pieces 7 is adapted to the thickness of the template, such as cooperating with the above-mentioned running water joint template, the interval of the two fixing pieces 7 is 0.04m, the template is clamped by the two fixing pieces 7 to fix the template and the steel bar. Since the template is a rough machined wooden product, the thickness is not accurate, and the general error is within 5mm, and the interval of the two fixing pieces 7 is formed by welding fixation. Since the running water joint template is a consumable, it cannot be matched with the fixing piece 7, which makes the fixing quality between it and the running water joint template unstable. Through observation in the construction process, the simple steel bar fixing piece is difficult to guarantee the position of the template of the running water joint, and the smoothness of the running water joint after demolding is very poor. At the same time, since the steel bar 8 is a reusable component, there is a problem of carrying, and 3 workers are needed to carry each steel bar, which greatly reduces the construction quality and efficiency. SUMMARY

[0004] In order to guarantee the pouring quality of the drainage ditch, improve the smoothness of the water collecting opening forming, reduce the construction cost and speed up the construction efficiency, the utility model provides a pavement drainage ditch running water joint template fixing device, the clamping template part can adjust the clamping thickness, and the fixing quality of the running water joint template can be guaranteed.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] The utility model discloses a kind of pavement drainage ditch water flow joint template fixing device, its main points are as follows: including fixed rod, several ring-shaped fixing parts, the fixed rod is hollow pipe, ring-shaped fixing part is covered outside fixed rod, the ring-shaped fixing part includes limiting disc and limiting ring, limiting disc has a stepped base, upper part is fixed part, the circumference of fixed part is opened with through slot along the axial direction, at least two through slots are distributed along circumference, so that fixed part has elasticity, the inner diameter of limiting ring is matched with the outer diameter of fixed part after through slot contraction, fixed part is clamped fixed rod under the action of limiting ring, the outer diameter of limiting device is greater than the inner diameter of ring-shaped fixing part, to prevent ring-shaped fixing part from coming out.

[0007] The utility model discloses a kind of pavement drainage ditch water flow joint template fixing device, its main points are as follows: including fixed rod, several ring-shaped fixing parts, the fixed rod is hollow pipe, ring-shaped fixing part is covered outside fixed rod, the ring-shaped fixing part includes limiting disc and limiting ring, limiting disc has a stepped base, upper part is fixed part, the circumference of fixed part is opened with through slot along the axial direction, at least two through slots are distributed along circumference, so that fixed part has elasticity, the inner diameter of limiting ring is matched with the outer diameter of fixed part after through slot contraction, fixed part is clamped fixed rod under the action of limiting ring, the outer diameter of limiting device is greater than the inner diameter of ring-shaped fixing part, to prevent ring-shaped fixing part from coming out.

[0008] Further, the fixed rod is provided with a thread matched with the limiting device at both ends, and the fixed rod is connected with the limiting device through the thread.

[0009] The limiting device is a screw cap head with one end closed, and is connected with the free end of the fixed rod.

[0010] The utility model discloses a limiting device, which limits the ring-shaped fixing part from coming out, and also protects the end of the fixed rod, to prevent the cement slurry from flowing into the fixed rod.

[0011] The fixed rod is composed of not less than two fixed-length rods, and the adjacent fixed rods are connected through a connecting piece.

[0012] The fixed rod is composed of multiple short rods, further reducing the weight of a single fixed rod, and facilitating transportation.

[0013] The fixed part of the limiting disc of the ring-shaped fixing part has three evenly distributed through slots along the circumference.

[0014] The inner diameter of the limiting ring is smaller than the outer diameter of the fixed part in free state, and larger than the outer diameter of the fixed part when tightened.

[0015] The utility model has the advantages of simple structure, convenient operation, and the like, the main material for the fixed rod is made of stainless steel pipe, can be made on site, the annular fixing part is made of plastic material, is easy to replace, and has low cost. The number of annular fixing parts can be assembled according to the needs of the site, so the utility model not only can satisfy the water gap template of different thickness, but also can satisfy the water gap template of different spacing, through actual test, the water gap template after using the utility model is stable and reliable, the edge after form removal is smooth and beautiful, and the construction quality is well guaranteed. In addition, the single fixed device of 1.5m long of the utility model weighs about 5kg, and the structure of the multiple rods spliced, the short rod transportation and storage are convenient, the original number of operating workers is greatly reduced, the work efficiency is improved, and the construction cost is reduced. It can be applied to airport pavement drainage ditch construction, and can be applied to similar other pavement drainage ditch construction, for example, expressway. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the working state diagram of the prior simple reinforcing steel bar welding fixing part;

[0017] Figure 2 is the working state diagram of the utility model embodiment 1;

[0018] Figure 3 is the annular fixing part detail view of the utility model;

[0019] Figure 4 is the assembly drawing of annular fixing part;

[0020] Figure 5 is the working state diagram of the utility model embodiment 2;

[0021] Figure 6 is the structure schematic view of the connecting rod of the utility model embodiment 2;

[0022] Figure 7 is the structure schematic view of the connecting seat of the utility model embodiment 2;

[0023] In the drawing: 1-fixed rod, 2-limiting device, 3-annular fixing part, 31-limiting disc, 311-base, 312-fixed part, 32-limiting ring, 4-water gap template, 6 connecting piece, 61 connecting rod, 62 connecting seat, 7 fixed sheet, 8 reinforcing steel bar. DETAILED DESCRIPTION

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. This description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Example 1, as Figures 2-4 As shown, a pavement drainage ditch formwork fixing device includes a fixing rod 1 and several annular fixing parts 3. The fixing rod 1 is a hollow tube, and the annular fixing parts are sleeved on the fixing rod. The annular fixing parts include a limiting plate 31 and a limiting ring 32, both of which are hollow cylindrical tubes. The limiting plate has a stepped base 311, and the upper part is a fixing part 312. The circumference of the fixing part has a through groove 313 along the axial direction. There are at least two evenly distributed through grooves along the circumference to make the fixing part elastic. The inner diameter of the limiting ring matches the outer diameter of the fixing part after the through groove shrinks. Under the action of the limiting ring, the fixing part clamps the fixing rod. The two ends of the fixing rod are fixed with limiting devices 2. The limiting device 2 is a nut head with one end closed and connected to the free end of the fixing rod. The outer diameter of the limiting device is larger than the inner diameter of the annular fixing part to prevent the annular fixing part from falling out. At the same time, it also protects the end of the fixing rod from being bumped and prevents cement slurry from flowing into the fixing rod. The fixing rod is placed on the top of the drainage ditch joint template by a ring-shaped fixing clip, so that the fixing distance between the two can be adjusted according to the thickness of the joint template, so that the joint template can be stably fixed.

[0026] The following specific dimensions of this utility model are based on a single panel of the drainage joint template with a length of 1m, a width of 0.04m, and a height of 0.4m:

[0027] The hollow tube used for fixing rod 1 has the following specific dimensions: inner diameter 4cm, outer diameter 4.5cm, and length 3m. The limiting plate 31 has a through hole in the middle with an inner diameter of 4.7cm. The base has an outer diameter of 7cm and an axial length of 2-4cm. The fixing part 312 has an outer diameter of 5.5cm in its free state, a wall thickness of 3.5-4mm, and a length of 8-12cm. The outer diameter of the fixing part has a slight taper (smaller at the head) for better fixing effect. The through groove 313 has a width of approximately 3mm, and there are three evenly distributed through grooves in the figure. The distance from the bottom surface of the through groove to the upper surface of the base is 10-30mm. This allows the limiting ring to be fixed within the range of the through groove using its elasticity.

[0028] The inner diameter of the limiting ring 32 is smaller than the outer diameter of the fixed part in free state, larger than the outer diameter of the fixed part when it is tightened, and at least in interference fit with the outer diameter of the fixed part at the lower end without a through slot, so that the limiting ring can move axially in the fixed part of the limiting disc, and after being in place, the through slot of the fixed part is opened, so that the limiting ring 32 can no longer move axially. In this example, the inner diameter of the limiting ring is 5.2 cm, and the axial length is 2 cm.

[0029] The outer surface of the limiting device 2 is made into a standard hexagonal nut shape to facilitate the use of general tools.

[0030] In use, one end of the fixed rod is closed with the limiting device, the number of water joint formwork to be fixed according to the design is determined, the pair of annular fixing members 3 are sleeved from the other end, and the limiting device at the other end is tightened. After the water joint formwork at the construction site is placed at the designed interval, the two annular fixing members are placed on both sides of each water joint formwork, the fixed part of the annular fixing member is pinched tightly by hand, the limiting ring is sleeved until it can no longer move axially, and the annular fixing member on the other side is fixed. In this way, all the water joint formworks are fixed in turn. The utility model can be matched with different interval water joint formwork design requirements, and has good versatility.

[0031] In example 2, as shown in the figure, the fixed rod is composed of a plurality of short rods, which further reduces the weight of a single fixed rod and facilitates transportation. Figures 3-7 The fixed rod is composed of two fixed-length rods, and the adjacent fixed rods are connected through a connecting member 6. The connecting member is composed of a connecting rod 61 and a connecting seat 62. One end of the connecting rod is an internal thread matched with the connecting end of the fixed rod, and the other end is a screw rod. Both ends of the connecting seat are internal threads. One end is an internal thread matched with the connecting end of the fixed rod, and the other end is an internal thread matched with the connecting rod. Generally, the screw rod and the thread of the connecting rod are made consistent with the thread at the end of the fixed rod. The remaining parts are the same as those in example 1.

[0032] In specific embodiments, according to design specification requirements, the drainage ditch is usually poured in 20m as a bin. Taking a drainage ditch structure with a size of 20m×4.4m as an example, the top plate is provided with a water collecting port along the long side on both sides. The longitudinal interval of each water collecting port is 0.67m, and the transverse interval is 1m. The fixing device can be combined according to the needs of the site. Under the unfolded length, only 6 on one side, a total of 12 can meet the construction requirements. And through actual test, the water joint formwork reinforced by the fixing device is stable and reliable, the edge after demolding is smooth and beautiful, which well guarantees the construction quality.

[0033] The weight of a 1.5m long fixed rod is about 5kg, and a single worker can carry it with one hand, which is convenient for transportation and storage, greatly reduces the number of original workers, improves work efficiency, and reduces construction cost.

Claims

1. A formwork fixing device for a drainage ditch of a pavement, characterized by: The fixing rod is a hollow pipe, and the annular fixing member is sleeved outside the fixing rod. The annular fixing member comprises a limiting disc and a limiting ring. The limiting disc has a stepped base, and the upper part is a fixed part. The circumference of the fixed part is provided with at least two through grooves along the axial direction. The fixed part has elasticity. The inner diameter of the limiting ring is matched with the outer diameter of the fixed part after the through grooves are contracted. The fixed part clamps and fixes the fixing rod under the action of the limiting ring. The two ends of the fixing rod are fixed with limiting devices. The outer diameter of the limiting device is larger than the inner diameter of the annular fixing member, so as to prevent the annular fixing member from being taken out.

2. A gutter flow joint form tieback device according to claim 1, wherein: The fixing rod is provided with threads at the two ends matched with the limiting devices. The fixing rod is connected with the limiting devices through threads.

3. A flow joint form tie for a pavement drainage channel according to claim 1, wherein: The fixing rod is composed of not less than two fixed rods which are connected through connecting members. The connecting member is composed of a connecting rod and a connecting base. One end of the connecting rod is an internal thread matched with the connecting end of the fixed rod, and the other end is a screw rod. The two ends of the connecting base are internal threads. One end is an internal thread matched with the connecting end of the fixed rod, and the other end is an internal thread matched with the connecting rod.

4. A flow joint form tie for a pavement drainage channel according to claim 1, wherein: The limiting device is a closed screw head at one end, and is connected with the free end of the fixed rod.

5. A flow joint form tie for a pavement drainage channel according to claim 1, wherein: The fixed part of the limiting disc of the annular fixing member is provided with three evenly distributed through grooves along the circumference.

6. A flow joint form tie for a pavement drainage channel according to claim 1, wherein: The inner diameter of the limiting ring is smaller than the outer diameter of the fixed part in the free state, and is larger than the outer diameter of the fixed part when it is tightened.

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