Concrete embedded part fixing device

Abstract

The utility model discloses a concrete embedded part fixing device which is a telescopic mechanism and is composed of a connecting rod, a nut, a fixing cylinder and a spring. The connecting rod is a straight rod component, the upper end of the connecting rod is fixedly connected with the embedded part, and limiting nails of protruding structures are symmetrically arranged on the two side walls of the connecting rod. The nut is sleeved on the connecting rod; the fixed cylinder is a sleeve with a single open upper end, the bottom or the cylinder wall is fixed with a precast concrete structural member, and limiting grooves are symmetrically formed in the cylinder walls of the two sides of the fixed cylinder in the axial direction of the fixed cylinder; the spring is arranged in the bottom barrel of the fixed barrel, and the upper end is matched with the connecting rod; the nut is detachably combined with an opening in the upper end of the fixed cylinder through threads; and the limiting nail slides in the limiting groove of the cylinder wall. According to the fixing device, during vibration during concrete pouring, the internal spring enables the embedded part to be tightly attached to the formwork through the connecting rod, a gap is prevented from being generated between the embedded part and the formwork, and the problem that concrete flows into the gap between the formwork and the embedded part due to vibration during structural concrete pouring is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary installation of building construction, in particular to an auxiliary fixing device for concrete embedded parts in building construction. Background Art

[0002] Embedded parts are a common construction technology in the field of concrete pouring construction projects. Currently, there are two common methods of embedded construction. The first is to fix the embedded parts directly on the formwork, which cannot be accurately positioned; the second is to fix the embedded parts directly to the main steel bars. Due to the vibration of the concrete, the steel bars move back and forth, and the embedded parts also move back and forth with the steel bars. During the backward movement, concrete flows into the gap between the embedded parts and the formwork, causing the embedded parts to be buried in the concrete, which cannot meet the construction needs. Summary of the Invention

[0003] The utility model discloses a concrete pre-embedded part fixing device in view of the deficiencies of the prior art. The utility model aims to provide a concrete pre-embedded part fixing device which can accurately fix the position of the embedded part and is convenient for installing the building.

[0004] The utility model is achieved through the following technical solutions:

[0005] A fixing device for embedded concrete parts, wherein the embedded parts are pre-fixed in the concrete structure before concrete pouring and are consolidated by concrete pouring; the fixing device is characterized in that the fixing device is a retractable mechanism consisting of a connecting rod, a nut, a fixing cylinder and a spring;

[0006] The connecting rod is a straight rod component, the upper end of which is connected and fixed to the embedded part, and limit pins with raised structures are symmetrically arranged on both side walls of the connecting rod; the nut is sleeved on the connecting rod; the fixed tube is a sleeve with a single-end opening at the upper end, and the bottom or tube wall is fixed to the precast concrete structure, and limit grooves arranged symmetrically along the axial direction of the fixed tube are arranged on both side walls of the fixed tube; the spring is arranged in the bottom tube of the fixed tube, and the upper end is supported by the connecting rod; the nut is detachably combined with the upper end opening of the fixed tube through a thread; the limit pins on the two side walls of the connecting rod slide in the limit grooves on the two tube walls of the fixed tube.

[0007] Furthermore, the connecting rod and the fixing tube have mutually matching cross-sectional structures, and the connecting rod is slidably fitted in the fixing tube.

[0008] Preferably, the connecting rod and the fixing cylinder have circular or rectangular cross-sectional structures that match each other.

[0009] The connecting rod of the utility model is constrained and limited in sliding in the fixing tube by a limiting pin.

[0010] Benefits of this utility model: When the fixing device of this utility model is vibrated during concrete pouring, the internal spring, through the connecting rod, keeps the embedded parts close to the formwork, preventing gaps from forming between the embedded parts and the formwork. This solves the problem of concrete flowing into the gap between the formwork and the embedded parts due to vibration during concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the fixing device of the utility model;

[0012] Figure 2 This is a schematic cross-sectional view of the connecting rod of the utility model device;

[0013] Figure 3 It is a schematic cross-sectional view of the fixed cylinder of the device of the utility model.

[0014] In the figure: 1. Embedded parts; 2. Connecting rod; 3. Nut; 4. External thread; 5. Fixing tube; 6. Limiting groove; 7. Limiting pin; 8. Spring. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0016] Combined with the attached drawings.

[0017] As shown in the figure, in the concrete embedded part fixing device of this embodiment, the embedded part 1 is pre-fixed on the steel frame before concrete pouring. During the concrete pouring process, the spring 8 of the fixing device makes the embedded part 1 close to the formwork, preventing the embedded part 1 from being buried in the concrete due to the movement of the steel bar.

[0018] The fixing device is a retractable mechanism, which consists of a connecting rod 2, a nut 3, a fixing cylinder 5 and a spring 8;

[0019] The connecting rod 2 is a straight rod component, the upper end of which is connected and fixed to the embedded part 1, and the two side walls of the connecting rod 2 are symmetrically provided with limit nails 7 with a raised structure; the nut 3 is sleeved on the connecting rod 2; the fixed tube 5 is a sleeve with a single-end opening at the upper end, and the bottom or tube wall is fixed to the precast concrete structure, and the two side walls of the fixed tube 5 are symmetrically provided with limit grooves 6 arranged along the axial direction of the fixed tube 5; the spring 8 is arranged in the bottom tube of the fixed tube 5, and the upper end is supported and cooperated with the connecting rod 2; the nut 3 is detachably combined with the upper end opening of the fixed tube 5 through a thread, and the limit nails 7 on the two side walls of the connecting rod 2 slide in the limit grooves 6 on the tube wall of the fixed tube 5.

[0020] The connecting rod 2 and the fixing tube 5 have mutually matching cross-sectional structures, and the connecting rod 2 is slidably fitted in the fixing tube 5. For example, the connecting rod 2 and the fixing tube 5 have mutually matching circular or rectangular cross-sectional structures.

[0021] The connecting rod 2 is constrained by the limiting pin 7 in the fixing tube 5 to achieve sliding.

[0022] like Figure 1 、 Figure 2 、 Figure 3 As shown, when the fixing device of the present invention is used, first connect and fix the embedded part 1 with the connecting rod 2, put the spring 8 into the fixing tube 5, then align the upper limit nail 7 on the connecting rod 2 with the limit groove 6 and put it into the fixed end, and tighten the nut 3.

[0023] Then, according to the measured positioning position, the fixing cylinder 5 is fixed on the adjacent steel bars. During installation, the embedded part 1 protrudes from the template installation edge line. After the template is installed, the spring 8 of the device is in a compressed state. Finally, the concrete template is installed and concrete is poured.

Claims

1. A fixing device for embedded concrete parts, wherein the embedded parts are pre-fixed in the concrete structure before concrete pouring and consolidated by concrete pouring; characterized in that: The fixing device is a retractable mechanism, which consists of a connecting rod, a nut, a fixing cylinder and a spring; The connecting rod is a straight rod component, the upper end of which is connected and fixed to the embedded part, and limit pins with raised structures are symmetrically arranged on both side walls of the connecting rod; the nut is sleeved on the connecting rod; the fixed tube is a sleeve with a single-end opening at the upper end, and the bottom or tube wall is fixed to the precast concrete structure, and limit grooves arranged symmetrically along the axial direction of the fixed tube are arranged on both side walls of the fixed tube; the spring is arranged in the bottom tube of the fixed tube, and the upper end is supported by the connecting rod; the nut is detachably combined with the upper end opening of the fixed tube through a thread; the limit pins on the two side walls of the connecting rod slide in the limit grooves on the two tube walls of the fixed tube.

2. The concrete embedded part fixing device according to claim 1, characterized in that: The connecting rod and the fixing tube have mutually matching cross-sectional structures, and the connecting rod is slidably fitted in the fixing tube.

3. The concrete embedded part fixing device according to claim 2, characterized in that: The connecting rod and the fixing cylinder have circular or rectangular cross-sectional structures that match each other.

4. The concrete embedded part fixing device according to claim 3, characterized in that: The connecting rod is constrained and limited in sliding in the fixing tube by a limiting pin.

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