Quick binding device for prefabricated hollow block wall components

Abstract

The utility model discloses a quick binding device for prefabricated hollow block wall components, and belongs to the technical field of prefabricated component manufacturing and mounting. The utility model solves the problems that the structure of the conventional ratchet wheel tightener or improved tightener is complicated or the labor intensity is increased and the efficiency is reduced. A binding beam is installed on the top of a wall component, a chamfering mechanism is connected to the binding beam, a binding rope is arranged on the chamfering mechanism in a sliding mode, one end of the binding rope is connected with an electric drive tightener, the other end of the binding rope is connected with a bottom support, and the bottom of the electric drive tightener is connected with the bottom support through a steel chain. A binding rope of the electric drive tightener is connected with the upper U-shaped head, the trapezoidal thread tightening latch is installed on the upper U-shaped head, the steel sleeve is arranged on the outer side of the trapezoidal thread tightening latch in a sleeving mode and is in threaded connection with the trapezoidal thread tightening latch, and the steel sleeve is connected with the steel chain through the lower U-shaped head. The quick binding device for the prefabricated hollow block wall component is simple in structure, the labor intensity of workers is reduced, and meanwhile the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated component manufacturing and installation, in particular to a quick binding device for prefabricated hollow block wall components. Background Art

[0002] The assembled reinforced block masonry structure conforms to the national background of residential industrialization and building industrialization, and can achieve sustainable development of resources and energy. In terms of carbon emissions, it is in the construction link of buildings, and plays a connecting role in the production of upstream low-carbon block products and the operation of downstream ultra-low energy consumption buildings. It is a key link in this low-carbon industrial chain. Assembled construction has the advantages of cost saving, fast construction speed, and easy quality control, and it is the development trend in the field of civil engineering construction in the future. According to the technical development plan and requirements of the assembled reinforced block masonry building industry, based on the assembly technology of reinforced block masonry structure, since the wall components built with concrete hollow blocks have much lower integrity than reinforced concrete wall components, they cannot be directly hoisted, and binding is required to complete the hoisting of wall components.

[0003] Installation process of concrete hollow block wall components: First, set the binding steel beam on the top of the wall component, use the binding rope and the detachable closed bottom bracket to bind the binding steel beam and the wall piece as a whole, then place and fix the slider on the binding steel beam, and only need to lift the slider to achieve the lifting of the entire wall component. After the wall piece is in place, remove the binding rope and lift the binding steel beam and the steel bar guide tube away from the wall component.

[0004] When tying the wall components, the tying rope and the detachable closed bottom support should form a whole with the tying steel beam and the wall components. The compression state of the tying beam on the wall piece increases the overall rigidity of the wall component to ensure the safety of the wall piece during hoisting. The tensioner tightens the tying rope to provide a measure for the tying beam to press the wall component. The existing ratchet tensioners and improved tensioners are widely used in actual projects. The ratchet tensioners have a complex structure and a large mechanism during use. They are easily damaged by collision during the hoisting and transportation of the wall pieces, especially the ratchet. In addition, when the wall pieces are installed, the ratchet wrench arm is long and extends outside the wall to hinder the workers' operation. The advantage of the improved tensioner is that it has a simple structure, can meet the binding requirements in terms of function, eliminates the ratchet, and greatly improves durability. However, its disadvantage is that it needs to be manually tightened and loosened using a wrench, which not only increases the working time but also increases the labor intensity of the workers, greatly reduces the work efficiency and increases the cost.

[0005] Therefore, the present application proposes a prefabricated hollow block wall component quick binding device to solve the above problems. Utility Model Content

[0006] The purpose of the research and development of the utility model is to solve the problem that the ratchet tensioner or improved tensioner currently used has a complex structure or increases labor intensity and reduces efficiency. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to determine the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0007] The technical solution of this utility model:

[0008] A quick binding device for prefabricated hollow block wall components comprises a chamfering mechanism, a binding rope, an electric-driven tensioner, a steel chain, a binding beam and a bottom support, wherein the binding beam is installed on the top of the wall component, the binding beam is connected with the chamfering mechanism, a binding rope is slidably arranged on the chamfering mechanism, one end of the binding rope is connected with the electric-driven tensioner, the other end of the binding rope is connected with the bottom support, the bottom of the electric-driven tensioner is connected with the bottom support via a steel chain, the electric-driven tensioner comprises an upper U-shaped head, a trapezoidal threaded bolt rod, a steel sleeve and a lower U-shaped head, the binding rope is connected with the upper U-shaped head, the trapezoidal threaded bolt rod is installed on the upper U-shaped head, the steel sleeve is sleeved on the outside of the trapezoidal threaded bolt rod and is threadedly connected with the trapezoidal threaded bolt rod, and the steel sleeve is connected with the steel chain via the lower U-shaped head.

[0009] Furthermore, a limit pin is sleeved on the trapezoidal thread bolt rod, and the limit pin is cooperatively connected with the upper U-shaped head.

[0010] Furthermore, the base support includes a base support bottom plate and a base support side plate. The two base support side plates are connected through the base support bottom plate. One base support side plate is connected to a binding rope, and the other base support side plate is connected to a steel chain. A latch is installed on the base support side plate, and an execution end of the latch is connected to the base support bottom plate.

[0011] Furthermore, a chain adjuster is installed on the steel chain.

[0012] Furthermore, the chamfering mechanism includes a limit support frame, a bearing and a cover strip, two bearings are rotatably mounted on the limit support frame, the binding rope is in contact with the bearings, the limit support frame is installed with a cover strip, and the binding rope is arranged between the cover strip and the bearings.

[0013] Furthermore, a limiting rod is installed at the bottom of the limiting support frame, a limiting hole is processed on the binding beam, and the limiting rod is cooperatively connected with the limiting hole.

[0014] The utility model has the following beneficial effects:

[0015] 1. The prefabricated hollow block wall component quick binding device of the utility model provides a device for implementing quick binding. The existing ratchet tensioner or improved tensioner is replaced by an electric-driven tensioner, and the electric-driven tensioner is controlled by an electric wrench to tighten the wall components, thereby improving work efficiency and reducing the labor intensity of workers. The utility model has a simple structure, faster installation speed and better effect.

[0016] 2. The prefabricated hollow block wall component quick binding device of the utility model uses the bearings on the chamfering mechanism and the cover strips to replace the sliding friction of the binding rope with rolling friction, thereby reducing the friction when the binding rope passes around the top of the binding beam, so that the wall component is evenly stressed. The cover strips installed on the limit support frame limit the binding rope within a certain space, avoiding the problem of the binding rope falling off during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a quick binding device for prefabricated hollow block wall components;

[0018] Figure 2 yes Figure 1 Schematic diagram of the local structure;

[0019] Figure 3 is a schematic diagram of the chamfering mechanism;

[0020] Figure 4 It is the main view of the chamfering mechanism;

[0021] Figure 5 It is a schematic diagram of the structure of the electric drive tensioner;

[0022] Figure 6 It is a cross-sectional view of the electric drive tensioner;

[0023] Figure 7 It is a normal distribution graph of the time consumed in multiple tying processes.

[0024] In the figure: 1-chamfering mechanism, 2-binding rope, 3-electric drive tensioner, 4-steel chain, 5-binding beam, 6-bottom support, 7-latch pin, 8-bottom support bottom plate, 9-chain adjuster, 10-bottom support side plate, 11-limit support frame, 12-bearing, 13-cover strip, 14-limit rod, 31-upper U-shaped head, 32-trapezoidal threaded bolt rod, 33-steel sleeve, 34-lower U-shaped head, 35-limit pin, 51-limit hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection (i.e., non-detachable connection) includes but is not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection, and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as threaded connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can always be found in the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example: welding connection is selected for fixed connection, and hinge connection is selected for detachable connection.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1, combination Figure 1-Figure 7 The present embodiment is described. The quick binding device for prefabricated hollow block wall components of the present embodiment comprises a chamfering mechanism 1, a binding rope 2, an electric-driven tensioner 3, a steel chain 4, a binding beam 5 and a bottom bracket 6. The binding beam 5 is installed on the top of the wall component. The chamfering mechanism 1 is connected to the binding beam 5. The chamfering mechanism 1 is slidably provided with a binding rope 2. One end of the binding rope 2 is connected to the electric-driven tensioner 3, and the other end of the binding rope 2 is connected to the bottom bracket 6. The bottom of the electric-driven tensioner 3 is connected to the bottom bracket 6 through the steel chain 4. The electric-driven tensioner 3 comprises an upper U-shaped head 31, a trapezoidal threaded bolt rod 32, a steel sleeve 33 and a lower U-shaped head 34. The binding rope 2 is connected to the upper U-shaped head 31, the trapezoidal threaded bolt rod 32 is installed on the upper U-shaped head 31, the steel sleeve 33 is sleeved on the outside of the trapezoidal threaded bolt rod 32 and is threadedly connected to the trapezoidal threaded bolt rod 32, and the steel sleeve 33 is connected to the steel chain 4 through the lower U-shaped head 34.

[0029] A limit pin 35 is mounted on the trapezoidal thread bolt rod 32, and the limit pin 35 is relatively fixed to the upper U-shaped head 31 to prevent the trapezoidal thread bolt rod 32 from jumping during the twisting process, thereby preventing danger;

[0030] The chamfering mechanism 1 includes a limit support frame 11, a bearing 12 and a cover strip 13. A limit rod 14 is arranged at the bottom of the limit support frame 11. A limit hole 51 is correspondingly processed on the tying beam 5. The limit rod 14 at the bottom of the limit support frame 11 is plugged into the limit hole 51, so that the limit support frame 11 is fixed on the tying beam 5. After the limit support frame 11 is installed, the tying rope 2 is matched and connected with the two bearings 12 on the limit support frame 11. The function of the cover strip 13 is to limit the channel through which the tying rope 2 passes from the chamfering mechanism 1 to a smaller space, so as to prevent the linear tying rope 2 and the bottom support 6 from falling off from the top of the tying beam 5 during hoisting; after the tying rope 2 passes through the limit support frame 11, the two ends of the tying rope 2 are hung on both sides of the wall component, one end of the tying rope 2 is connected to the bottom support 6 through the electric drive tensioner 3 and the steel chain 4, and the other end of the tying rope 2 is directly connected to the bottom support 6;

[0031] The base support 6 includes a base support bottom plate 8 and a base support side plate 10. The two base support side plates 10 are respectively arranged on both sides of the wall component. The base support bottom plate 8 is passed through the bottom of the wall component to connect the two base support side plates 10. A latch 7 is installed on one side of the base support side plate 10. The base support bottom plate 8 is fixed by the latch 7 on the base support side plate 10. The bottom of the electric-driven tensioner 3 is connected to the base support side plate 10 through a steel chain 4. A chain adjuster 9 is installed on the steel chain 4. The length of the steel chain 4 is adjusted by the chain adjuster 9 according to the overall height of the wall component.

[0032] The binding process of the wall components is divided into three steps. The first step is to install the binding rope 2, and connect the binding rope 2, the base support 6, the electric-driven tensioner 3, the steel chain 4 and the chamfering mechanism 1 into one, and place them on the wall component; the second step is to insert the base support bottom plate 8 of the base support 6, pass the base support bottom plate 8 through the bottom of the wall component, connect the two base support side plates 10 into one and fix them through the pin 7; the third step is to tighten the binding device by tightening the electric-driven tensioner 3 with an electric wrench.

[0033] The lashing rope 2 passes through the chamfering mechanism 1 from the bearing at one end of the limit support frame 11, and passes through the chamfering mechanism 1 from under the cover strip 13 through another bearing. The space between the cover strip 13 and the bearing 12 should allow the lashing rope to pass through. Since the bearing 12 is flexible in rotation and has low rolling resistance, generally only 1 / 60 to 1 / 40 of the sliding friction resistance, the friction between the lashing rope 2 and the lashing beam 5 can be greatly reduced. The friction coefficient between general steel materials is 0.15. If a force of 500kg is applied to the lashing rope 2, the sliding friction force is about 75kg. The lashing rope 2 must cross the two corners of the two lashing beams 5, resulting in a loss of 150kg of force, resulting in a tension difference of 30% at both ends of the lashing rope 2, causing serious imbalance. After using the present lashing device, only 3kg of force is lost, and the tension difference at both ends of the lashing rope 2 is only 0.6%, which can be ignored.

[0034] In order to detect the time consumption of lashing, the time consumption of the three links was counted; according to the above three links, a total of 113 lashing time tests were carried out. The test showed that after removing unreasonable slowdowns and failures, the time consumption of the three links was roughly normally distributed, as shown in the attached figure. Figure 7 As shown;

[0035] Set the time consumed by the first stage to X 1 , mathematical expectation value E(X 1 ) is 31.2(s), and the variance D(X 1 ) is 25.3(s 2 ); Set the time consumed by the second stage to X 2 , mathematical expectation value E(X 2 ) is 23.5(s), and the variance D(X 2 ) is 5.5(s 2 ); Set the time consumed by the third stage to X 3 , each system is set with two tensioners. A single tensioner is prone to cause unequal tension, affecting safety. The mathematical expectation value E(X 3 ) is 77.8(s), and the variance D(X 3 ) is 215.6(s 2 ).

[0036] Among the three links, the third link takes up the most time, has a large variance, and has a high dispersion, so it is the focus of improvement. Set the total time for tying Y = X 1 +X 2 +X 3 , because the three behaviors are independent of each other, according to probability statistics theory, E(Y)=E(X 1 )+E(X 2 )+E(X 3 ), so E(Y)=132.5(s), D(Y)=D(X 1 )+D(X 2 )+D(X 3 ), so D(Y)=246.4(s 2 ).

[0037] After adopting the electric drive tensioner 3, the time of the third link is greatly shortened, E(X 3 ) is shortened to 33.9(s), the efficiency is increased by 56%, D(X 3 ) is shortened to 164.5 (s). Not only the mathematical expectation is reduced, but also the variance is greatly reduced, indicating that the operation time is more stable. The total time E (Y) is shortened to 88.6 (s), the efficiency is improved by 33%, and D (Y) = 195.3 (s 2 ).

[0038] Embodiment 2, combined Figure 1-Figure 7 The present embodiment is described. The method for quickly tying prefabricated hollow block wall components of the present embodiment comprises the following steps:

[0039] Step 1: Place the tying beam 5 on the top of the wall component, insert the limiting rod 14 at the bottom of the limiting support frame 11 into the limiting hole 51 of the tying beam 5, and complete the connection between the limiting support frame 11 and the tying beam 5;

[0040] Step 2: Pass one end of the lashing rope 2 through the bearing 12 and the cover strip 13, so that the lashing rope 2 contacts the two bearings 12 respectively, and the cover strip 13 limits the sliding space of the lashing rope 2. After the lashing rope 2 passes through the space between the bearing 12 and the cover strip 13, pull the lashing rope 2 so that the two ends of the lashing rope 2 are respectively suspended on both sides of the wall component;

[0041] Step 3: Connect one end of the tying rope 2 to the upper U-shaped head 31 of the electric drive tensioner 3, connect the other end of the tying rope 2 to one side of the bottom bracket side plate 10 of the bottom bracket 6, connect the steel chain 4 to the lower U-shaped head 34 at the bottom of the electric drive tensioner 3, adjust the length of the steel chain 4 by the chain adjuster 9 on the steel chain 4, and connect the other end of the steel chain 4 to the other bottom bracket side plate 10, and place the two bottom bracket side plates 10 on both sides of the wall component respectively;

[0042] Step 4: Pass the bottom support plate 8 through the bottom of the wall component, connect the two bottom support side plates 10 as a whole, and insert the latch 7 on the bottom support side plates 10 into the bottom support plate 8 to complete the fixation between the two bottom support side plates 10 and the bottom support plate 8;

[0043] Step 5: Use an electric wrench to connect the end of the trapezoidal threaded bolt rod 32, turn on the electric wrench to drive the trapezoidal threaded bolt rod 32 to rotate, and the steel sleeve 33 threadedly connected to the trapezoidal threaded bolt rod 32 moves upward under the rotation of the trapezoidal threaded bolt rod 32 to complete the binding of the wall component.

[0044] This embodiment is only an exemplary description of the present invention and does not limit its protection scope. Those skilled in the art may also make partial changes thereto, and as long as they do not exceed the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. Prefabricated hollow block wall component quick binding device, characterized by: The invention comprises a chamfering mechanism (1), a tying rope (2), an electric-driven tensioner (3), a steel chain (4), a tying beam (5) and a bottom bracket (6); the tying beam (5) is installed on the top of the wall component; the tying beam (5) is connected to the chamfering mechanism (1); a tying rope (2) is slidably arranged on the chamfering mechanism (1); one end of the tying rope (2) is connected to the electric-driven tensioner (3); the other end of the tying rope (2) is connected to the bottom bracket (6); the bottom of the electric-driven tensioner (3) is connected to the bottom bracket (6) via the steel chain (4); 6) Establishing a connection, the electric-driven tensioner (3) comprises an upper U-shaped head (31), a trapezoidal threaded bolt rod (32), a steel sleeve (33) and a lower U-shaped head (34), the lashing rope (2) is connected to the upper U-shaped head (31), the trapezoidal threaded bolt rod (32) is mounted on the upper U-shaped head (31), the steel sleeve (33) is sleeved on the outer side of the trapezoidal threaded bolt rod (32) and is threadedly connected to the trapezoidal threaded bolt rod (32), and the steel sleeve (33) is connected to the steel chain (4) through the lower U-shaped head (34).

2. The quick binding device for prefabricated hollow block wall components according to claim 1 is characterized in that: A limit pin (35) is sleeved on the trapezoidal thread bolt rod (32), and the limit pin (35) is matched and connected with the upper U-shaped head (31).

3. The quick binding device for prefabricated hollow block wall components according to claim 1 is characterized in that: The base support (6) comprises a base support bottom plate (8) and a base support side plate (10), the two base support side plates (10) are connected via the base support bottom plate (8), one base support side plate (10) is connected to the lashing rope (2), and the other base support side plate (10) is connected to the steel chain (4), a latch (7) is installed on the base support side plate (10), and the execution end of the latch (7) is matched and connected to the base support bottom plate (8).

4. The quick binding device for prefabricated hollow block wall components according to claim 3 is characterized in that: A chain adjuster (9) is installed on the steel chain (4).

5. The quick binding device for prefabricated hollow block wall components according to claim 4 is characterized in that: The chamfering mechanism (1) comprises a limit support frame (11), a bearing (12) and a cover strip (13); two bearings (12) are rotatably mounted on the limit support frame (11); the lashing rope (2) contacts the bearings (12); the limit support frame (11) is mounted with a cover strip (13); and the lashing rope (2) is arranged between the cover strip (13) and the bearings (12).

6. The quick binding device for prefabricated hollow block wall components according to claim 5, characterized in that: A limiting rod (14) is installed at the bottom of the limiting support frame (11), a limiting hole (51) is processed on the tying beam (5), and the limiting rod (14) is matched and connected with the limiting hole (51).

Images