A fixing device and fixing method for precast concrete cushion components

Abstract

The present invention provides a fixing device and a fixing method for a precast concrete cushion member, which relates to the field and includes a cushion layer having at least two through holes opened at the top and sleeves inserted inside the through holes. A connecting cylinder is arranged inside the sleeve and moves along the inner side of the sleeve. At least two retaining rods extending below the sleeve and the cushion layer are arranged on the outer side of the bottom end of the connecting cylinder. The present invention proposes a reusable fixing device for a precast concrete cushion member, aiming to drive a connecting rod by the connecting cylinder to be installed inside the sleeve, and by rotating the connecting rod, the distance between the step of the connecting rod and the bottom end of the sleeve is reduced, so that one end of the retaining rod is clamped by the step of the connecting rod and the connecting cylinder, and one end of the retaining rod extends below the cushion layer and the sleeve, and the retaining rod is stuck between the cushion layer and the sleeve, making the installation and disassembly of the fixing device relatively convenient, enabling the fixing device to be reused, and at the same time increasing the usage range of the cushion layer.

Description

Technical Field

[0001] The present invention relates to the field of assembly of precast concrete components, and particularly to a fixing device and a fixing method for precast concrete cushion components. Background Art

[0002] In order to conduct assembly inspection on precast concrete components, anchor bolts are used to fix the precast concrete components on the concrete cushion for assembly experiments, which is a way of concrete assembly inspection. Considering the characteristics of anchor bolts, it is a common situation that the anchor bolts cannot be disassembled after being installed in the concrete cushion. For this situation, the area of the concrete cushion is increased to fix precast concrete components of different sizes. However, in actual situations, increasing the area of the concrete cushion will lead to an increase in the assembly cost of precast concrete components. Secondly, the anchor bolts exposed outside the concrete cushion will also reduce the usable range of the concrete cushion. Therefore, a detachable fixing device and a fixing method for precast concrete cushion components are proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a fixing device and a fixing method for precast concrete cushion components, so as to solve the technical problems that increasing the area of the concrete cushion will lead to an increase in the assembly cost of precast concrete components, and secondly, the anchor bolts exposed outside the concrete cushion will also reduce the usable range of the concrete cushion.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A fixing device for precast concrete cushion components includes a cushion with at least two through holes opened at the top and a sleeve inserted inside the through holes;

[0006] A connecting cylinder is arranged inside the sleeve and moves along the inner side of the sleeve;

[0007] At least two retaining rods extending below the sleeve and the cushion are arranged outside the bottom end of the connecting cylinder;

[0008] A connecting rod passing through the middle of the connecting cylinder and located inside the connecting cylinder is arranged in the middle of the connecting cylinder. Wherein, a step is arranged at the bottom end of the connecting rod, and the step contacts the bottom end of the retaining rod;

[0009] The retaining rod includes a connecting plate fixed to the outside of the bottom end of the connecting cylinder and a retaining block installed at one end of the connecting plate. The retaining block is rotatably connected to one end of the connecting plate. When the connecting cylinder moves along the inner side of the sleeve, the connecting cylinder presses the retaining rod, and one end of the retaining rod extends below the connecting cylinder and the cushion.

[0010] Preferably, at least two of the retaining rods are arranged at equal angles around the center of the connecting cylinder.

[0011] Preferably, the connecting cylinder includes a fixing cylinder inserted inside the sleeve and a connecting block installed at the inner bottom end of the fixing cylinder;

[0012] Wherein, the cross-section of the connecting block is in a right-angled shape;

[0013] The connecting block is a fixing component of the blocking rod, and the connecting block contacts the top end of the blocking rod.

[0014] Preferably, the connecting cylinder further includes a fixing block fixed at the inner top end of the fixing cylinder;

[0015] Wherein, the fixing block is a connecting component of the connecting rod, and a nut sleeved on the outer side of the connecting rod is arranged at the top end of the fixing block.

[0016] Preferably, the blocking rod further includes a baffle fixed at the bottom end of the connecting plate and connected to the blocking block, wherein the side surface of the baffle is inclined.

[0017] Preferably, the bottom end of the connecting rod is conical, and the top end of the connecting rod is hexagonal.

[0018] Preferably, a cushion plate and a nut connected to each other are sequentially arranged on the outer side of the connecting rod and above the cushion layer.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention provides a fixing device for precast concrete cushion members that can be reused, aiming to drive the connecting rod to be installed inside the sleeve by the connecting cylinder, and by rotating the connecting rod, the distance between the step of the connecting rod and the bottom end of the sleeve is reduced, so that one end of the blocking rod is clamped by the step of the connecting rod and the connecting cylinder, and one end of the blocking rod extends below the cushion layer and the sleeve, and the blocking rod is stuck between the cushion layer and the sleeve, making the installation and disassembly of the fixing device relatively convenient, enabling the fixing device to be reused, and at the same time increasing the usage range of the cushion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view schematic diagram of the cushion layer of the present invention;

[0022] Figure 2 It is a bottom view schematic diagram of the cushion layer of the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0024] Figure 4 It is a bottom view schematic diagram of the connecting cylinder of the present invention;

[0025] Figure 5 It is a top view schematic diagram of the connecting cylinder of the present invention;

[0026] Figure 6 Schematic enlarged view of the shift lever structure of the present invention;

[0027] Figure 7 Schematic sectional view of the shift lever structure of the present invention;

[0028] Figure 8 Schematic view of the overall structure of the present invention;

[0029] Figure 9 Schematic enlarged sectional view of the connecting cylinder of the present invention;

[0030] Reference numerals: 1, cushion layer; 2, sleeve; 3, connecting cylinder; 31, fixed cylinder; 32, fixed block; 33, connecting block; 4, connecting rod; 5, shift lever; 51, stop block; 52, connecting plate; 53, baffle; 6, cushion plate; 7, nut. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and the drawings. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0032] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0033] Embodiment 1

[0034] A fixing device for precast concrete cushion members, comprising a cushion layer 1 having at least two through holes opened at the top and a sleeve 2 inserted inside the through holes;

[0035] A connecting cylinder 3 is arranged inside the sleeve 2 and moves along the inside of the sleeve 2;

[0036] At least two shift levers 5 extending to the lower sides of the sleeve 2 and the cushion layer 1 are arranged on the outer side of the bottom end of the connecting cylinder 3. It should be noted that at least two shift levers 5 are arranged at equal angles around the center of the connecting cylinder 3 for evenly distributing the blocking force of the connecting rod 4;

[0037] A connecting rod 4 passing through the middle of the connecting cylinder 3 and located inside the connecting cylinder 3 is arranged in the middle of the connecting cylinder 3. The bottom end of the connecting rod 4 is provided with a step, and the step contacts the bottom end of the shift lever 5. A cushion plate 6 and a nut 7 connected to each other are sequentially arranged on the outer side of the connecting rod 4 and above the cushion layer 1;

[0038] The shift lever 5 includes a connecting plate 52 fixed to the outer side of the bottom end of the connecting cylinder 3 and a stopper 51 mounted at one end of the connecting plate 52. Among them, the stopper 51 is rotatably connected to one end of the connecting plate 52. When the connecting cylinder 3 moves along the inner side of the sleeve 2, the connecting cylinder 3 presses the shift lever 5, and one end of the shift lever 5 extends below the connecting cylinder 3 and the cushion layer 1. Among them, the shift lever 5 further includes a baffle 53 fixed to the bottom end of the connecting plate 52 and connected to the stopper 51. Among them, the side surface of the baffle 53 is inclined, so that when the stopper 51 rotates downward, it is inclined, so that when the connecting cylinder 3 and the connecting rod 4 clamp the shift lever 5, one end of the shift lever 5 can smoothly extend below the cushion layer 1 and the sleeve 2.

[0039] Combined with Figures 1-9 , in this embodiment, a detachable fixing device for precast concrete cushion members is proposed. This fixing device combines components such as the sleeve 2, the connecting cylinder 3, the connecting rod 4, and the shift lever 5. The purpose is to drive the connecting rod 4 by the connecting cylinder 3 to be installed inside the sleeve 2, and by rotating the connecting rod 4, the distance between the step of the connecting rod 4 and the bottom end of the sleeve 2 is reduced, so that one end of the shift lever 5 is clamped by the step of the connecting rod 4 and the connecting cylinder 3, and one end of the shift lever 5 slides on the step of the connecting rod 4, so that one end of the stopper 51 extends below the cushion layer 1 and the sleeve 2. At the same time, the shift lever 5 is connected to the cushion layer 1 and the sleeve 2. By inserting the connecting rod 4 into the fixing hole inside the precast member, the precast member is fixed on the cushion layer 1 by a nut. At the same time, by operating the above steps in reverse, the fixing device can be removed, the fixing device can be reused, and the use range of the cushion layer 1 is increased.

[0040] Next, the specific structures of the connecting cylinder 3 and the connecting rod 4 involved in this embodiment will be described:

[0041] Please refer to Figure 9 , the connecting cylinder 3 includes a fixing cylinder 31 inserted inside the sleeve 2 and a connecting block 33 installed at the inner bottom end of the fixing cylinder 31. Among them, it should be noted that the cross-section of the connecting block 33 is right-angled. The connecting block 33 is a fixing component of the shift lever 5, and the connecting block 33 contacts the top end of the shift lever 5. Among them, the contact surface between the connecting block 33 and the top end of the shift lever 5 is horizontal.

[0042] Please refer to Figure 9 , the connecting cylinder 3 further includes a fixing block 32 fixed to the inner top end of the fixing cylinder 31. The fixing block 32 is a connecting component of the connecting rod 4, and a nut sleeved on the outer side of the connecting rod 4 is provided at the top end of the fixing block 32.

[0043] Please refer to Figures 1-3 , the bottom end of the connecting rod 4 is conical. The conical bottom of the connecting rod 4 can open the soil below the cushion layer 1, so that the bottom end of the connecting rod 4 has a moving space at the bottom end of the cushion layer 1. The top end of the connecting rod 4 is hexagonal, which is used to rotate the connecting rod 4 inside the connecting cylinder 3 to press the shift lever 5.

[0044] Working principle:

[0045] Step 1: First, prefabricate the position of the connecting cylinder 3, pour the cushion layer 1, and at the same time wrap and fix the connecting cylinder 3 inside the cushion layer 1;

[0046] Step 2: Install the connecting rod 4 inside the sleeve 2, and make the stop block 51 rotate downward at one end of the connecting plate 52 to the side of the sleeve 2. At the same time, the baffle 53 limits the rotation angle of the stop block 51 to make the stop block 51 inclined, and then install the sleeve 2 inside the connecting cylinder 3;

[0047] Step 3: Aim to drive the connecting rod 4 by the connecting cylinder 3 to be installed inside the sleeve 2, and by rotating the connecting rod 4, the distance between the step of the connecting rod 4 and the bottom end of the sleeve 2 is reduced, so that one end of the stop rod 5 is clamped by the step of the connecting rod 4 and the connecting block 33, so that one end of the stop block 51 slides on the step of the connecting rod 4 and makes the stop block 51 parallel to the step of the connecting rod 4, so that one end of the stop block 51 extends below the cushion layer 1 and the sleeve 2. By continuously rotating the connecting rod 4, the stop rod 5 is connected to the cushion layer 1 and the sleeve 2;

[0048] Step 3: Insert the top end of the connecting rod 4 into the fixing hole of the prefabricated component, and sleeved the nut 7 and the backing plate 6 on the outside of the connecting rod 4 in sequence, and make the bottom end of the backing plate 6 connected to the prefabricated component, and fix the prefabricated component on the cushion layer 1 by rotating the nut 7;

[0049] Step 4: Reverse the above steps to remove the fixing device.

[0050] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fixing device for precast concrete cushion components, characterized in that: It includes a cushion layer (1) with at least two through holes opened at the top and a sleeve (2) inserted inside the through holes; A connecting cylinder (3) that moves along the inner side of the sleeve (2) is arranged inside the sleeve (2); At least two retaining rods (5) extending below the sleeve (2) and the cushion layer (1) are arranged on the outer side of the bottom end of the connecting cylinder (3); A connecting rod (4) passing through the middle of the connecting cylinder (3) and located inside the connecting cylinder (3) is arranged in the middle of the connecting cylinder (3). Wherein, a step is arranged at the bottom end of the connecting rod (4), and the step contacts the bottom end of the retaining rod (5); The retaining rod (5) includes a connecting plate (52) fixed on the outer side of the bottom end of the connecting cylinder (3) and a retaining block (51) installed at one end of the connecting plate (52). Wherein, the retaining block (51) is rotatably connected to one end of the connecting plate (52). When the connecting cylinder (3) moves along the inner side of the sleeve (2), the connecting cylinder (3) presses the retaining rod (5), and one end of the retaining rod (5) extends below the connecting cylinder (3) and the cushion layer (1); The connecting cylinder (3) includes a fixed cylinder (31) inserted inside the sleeve (2) and a connecting block (33) installed at the inner bottom end of the fixed cylinder (31); Wherein, the cross-section of the connecting block (33) is in a right-angled shape; The connecting block (33) is a fixing component of the retaining rod (5), and the connecting block (33) contacts the top end of the retaining rod (5); 2. The fixing device for precast concrete cushion components according to claim 1, characterized in that: At least two of the retaining rods (5) are arranged at equal angles around the center of the connecting cylinder (3); 3. The fixing device for precast concrete cushion members according to claim 2, characterized in that: The connecting cylinder (3) further includes a fixed block (32) fixed at the inner top end of the fixed cylinder (31); Wherein, the fixed block (32) is a connecting component of the connecting rod (4), and a nut sleeved on the outer side of the connecting rod (4) is arranged at the top end of the fixed block (32); 4. The fixing device for precast concrete cushion components according to claim 1, characterized in that: The retaining rod (5) further includes a baffle (53) fixed at the bottom end of the connecting plate (52) and connected to the retaining block (51). Wherein, the side surface of the baffle (53) is inclined; 5. The fixing device for precast concrete cushion components according to claim 1, characterized in that: The bottom end of the connecting rod (4) is conical, and the top end of the connecting rod (4) is hexagonal; 6. The fixing device for precast concrete cushion members according to claim 4, characterized in that: A cushion plate (6) and a nut (7) which are connected to each other are sequentially arranged on the outer side of the connecting rod (4) and above the cushion layer (1); 7. A fixing method using the concrete cushion precast member fixing device according to claim 6, comprising the following steps: Step 1, first, the cushion layer (1) is cast and formed, through holes are opened on the cushion layer (1), and then the connecting cylinder (3) is installed inside the through holes of the cushion layer (1); Step 2, install the connecting rod (4) inside the sleeve (2), and make the retaining block (51) rotate downward at one end of the connecting plate (52) to the side of the sleeve (2). At the same time, the baffle (53) limits the rotation angle of the retaining block (51) to make the retaining block (51) inclined, and then install the sleeve (2) inside the connecting cylinder (3); Step 3: Rotate the connecting rod (4) to reduce the distance between the step of the connecting rod (4) and the bottom end of the sleeve (2), so that one end of the stop rod (5) is clamped by the step of the connecting rod (4) and the connecting block (33), causing one end of the stop block (51) to slide on the step of the connecting rod (4), and making the stop block (51) parallel to the step of the connecting rod (4), so that one end of the stop block (51) extends below the cushion layer (1) and the sleeve (2). Then continue to rotate the connecting rod (4) to connect the stop rod (5) with the cushion layer (1) and the sleeve (2); Step 3: Insert the top end of the connecting rod (4) into the inner side of the fixing hole of the precast member, and sleeved the nut (7) and the backing plate (6) on the outer side of the connecting rod (4) at one time, and make the bottom end of the backing plate (6) connected with the precast member, and fix the precast member on the cushion layer (1) by rotating the nut (7); Step 4: Reverse the above steps to remove the fixing device.

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