Extruded reinforcing steel connection and method of use

Abstract

The present application relates to the technical field of connecting piece, in particular to an extrusion type reinforcing steel bar connecting joint and a using method, the connecting joint comprises a sleeve, a plastic extrusion piece and a rigid extrusion piece, the plastic extrusion piece is sleeved on two pieces to be connected, and the rigid extrusion piece is arranged at the end of the plastic extrusion piece; the sleeve is sleeved on the outer periphery of the plastic extrusion piece; an extrusion groove is reserved in the sleeve; the plastic extrusion piece can be deformed under the extrusion of the rigid extrusion piece and fill the extrusion groove, so that the relative fixation of the two pieces to be connected is realized. The connecting joint can realize the simple and efficient connection of the two pieces to be connected, improve the work efficiency, protect the construction environment, and promote the safety and quality level of on-site construction.

Description

Technical Field

[0001] This invention relates to the field of connector technology, specifically to an extruded rebar connector and its usage method. Background Technology

[0002] In cast-in-place pile construction, due to the long length of the reinforcing cage, it is necessary to process it in sections before connecting it at the borehole opening. Common methods include: one is single-sided or double-sided lap welding of the main reinforcement bars, and the other is connection using straight threaded sleeves. The former requires pre-bending of the main reinforcement bars at the welding points, resulting in a long welding time, high skill requirements for welders, low welding efficiency, and unreliable connection quality. Furthermore, it involves multiple electrical safety control measures, posing certain safety hazards. The latter requires threading of the reinforcing bars in the early stages, necessitating pre-assembly of the processed reinforcing cage. This leads to complex cage alignment, a long connection time, and exposed threads at the borehole opening, failing to meet specification requirements.

[0003] Both of the above methods involve a longer rebar cage connection time, which accounts for 70%-80% of the total rebar cage lowering time. The connection speed directly affects the lowering time, and in some areas with poor geological conditions, it may even threaten the quality of pile formation.

[0004] Existing connection methods are not only time-consuming and labor-intensive, but also constrained by space and tools, making it impossible to guarantee stable quality, and also pose environmental pollution problems. Summary of the Invention

[0005] The purpose of this invention is to provide a compression-type rebar connection joint and its usage method, which can realize the simple and efficient connection of two parts to be connected, improve work efficiency, protect the construction environment, and promote the improvement of on-site construction safety and quality.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention provides a connecting joint, including a sleeve, a plastic extrusion member, and a rigid extrusion member. The plastic extrusion member is sleeved on two parts to be connected, and the rigid extrusion member is disposed at the end of the plastic extrusion member. The sleeve is sleeved on the outer periphery of the plastic extrusion member. An extrusion groove is reserved in the sleeve. The plastic extrusion member can deform under the extrusion of the rigid extrusion member and fill the extrusion groove, thereby achieving relative fixation of the two parts to be connected.

[0008] In conjunction with the first aspect, the rigid extrusion part is further provided with a limiting boss to limit the initial installation position of the sleeve; when the rigid extrusion part extrudes the plastic extrusion part, the limiting boss can be disengaged from the rigid extrusion part under the push of the sleeve.

[0009] In conjunction with the first aspect, the rigid extrusion component further includes multiple rigid components, which enclose a surrounding area that surrounds the component to be connected. Each rigid component is fitted with at least one fastener on its outer periphery to keep the rigid components relatively fixed.

[0010] In conjunction with the first aspect, each rigid component has a groove on its outer periphery, and fasteners are disposed in the grooves.

[0011] In conjunction with the first aspect, the fastener is further described as an elastic element.

[0012] In conjunction with the first aspect, furthermore, the depth of the extrusion groove gradually decreases from the middle to both ends.

[0013] In conjunction with the first aspect, furthermore, a rigid extrusion part is provided at each end of the plastic extrusion part.

[0014] Secondly, the present invention provides a method of using a connecting joint, comprising the following steps: fitting a rigid extrusion piece onto the piece to be connected;

[0015] The sleeve is fitted onto the outer periphery of the plastic extrusion;

[0016] The two parts to be connected are inserted into the plastic extruder, and the rigid extruder is pushed to deform the plastic extruder and fill the extrusion groove, thereby achieving relative fixation of the two parts to be connected.

[0017] Thirdly, the present invention provides a reinforcing bar, wherein the reinforcing bar is connected to the other two reinforcing bars by means of the aforementioned connecting joint.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The connecting joint provided by the present invention uses a rigid extruder to compress a plastic extruder, causing the plastic extruder to deform and fill into the extrusion groove, providing greater friction and improving the gripping force of the overall structure. The extrusion method is used to install and fix the parts to be connected, which has the advantages of simple operation, fast connection speed and stable performance.

[0020] The initial installation position of the sleeve is limited by the setting of the limiting boss, which facilitates the installation of the sleeve. The setting of the limiting boss being squeezed and disengaged from the rigid extrusion part facilitates the embedding of the rigid extrusion part into the sleeve.

[0021] The rigid extrusion includes multiple rigid components, which facilitates the installation of the rigid extrusion onto the parts to be connected.

[0022] By using fasteners and grooves, the rigid components are kept relatively fixed, thus securing the rigid extrusion piece to the part to be connected.

[0023] The method of using the connecting joint provided by the present invention can install and fix the connecting joint and the parts to be connected more efficiently and quickly;

[0024] The steel bars provided by this invention can be connected by a connecting joint, eliminating the need for pre-processing threads on the steel bars, thereby improving construction efficiency, protecting the construction environment, and enhancing the safety and quality of construction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the connection structure of the connector and the component to be connected provided in an embodiment of the present invention;

[0026] Figure 2 This is an enlarged cross-sectional view of the rigid extrusion component provided in an embodiment of the present invention.

[0027] The markings in the attached diagram are as follows: 1. Part to be connected; 2. Rigid extrusion part; 3. Groove; 4. Sleeve; 5. Plastic extrusion part; 6. Extrusion groove; 7. Limiting boss. Detailed Implementation

[0028] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Unless otherwise specified, the embodiments of this application and the technical features within them can be combined with each other.

[0030] Example 1:

[0031] Please see Figure 1 This embodiment provides a connecting joint, including a sleeve 4, a plastic extrusion 5, and a rigid extrusion 2.

[0032] The plastic extrusion 5 may be provided with a receiving groove or receiving hole for inserting the connecting ends of two parts 1 to be connected. Figure 1 As shown, the plastic extrusion 5 can be set as a hollow tubular structure. It should be understood that, as an equivalent deformation, the plastic extrusion 5 can also be set as a structure with slots at both ends and a longitudinal section of "I" shape. That is, a partition is set in the middle of the plastic extrusion 5 to ensure that the two parts to be connected 1 are inserted into the plastic extrusion for the same length.

[0033] A rigid extruder 2 is disposed at the end of the plastic extruder 5. It should be noted that the term "rigid" in the rigid extruder 2 is relative to the term "plastic" in the plastic extruder 5. In other words, under the same force, the plastic extruder 5 is more easily deformed than the rigid extruder 2. As an example, the plastic extruder 5 can be made of aluminum alloy, which has good plasticity and high strength, while the rigid extruder 2 can be made of steel, which has higher hardness.

[0034] A sleeve 4 is fitted around the outer periphery of the plastic extrusion part 5. An extrusion groove 6 is pre-formed inside the sleeve 4. When the rigid extrusion part 2 extrudes the plastic extrusion part 5, the plastic extrusion part 5 deforms into the extrusion groove 6 under the combined action of the part to be connected 1, the rigid extrusion part 2, and the sleeve 4, filling the extrusion groove 6. After deformation, the plastic extrusion part 5 forms numerous wrinkles, significantly increasing the friction between itself and the sleeve 4 and the part to be connected 1, improving the overall gripping force, and thus achieving the connection of the two parts to be connected 1. Compared to existing technologies, the connecting joint provided in this embodiment uses an extrusion method to install and fix the part to be connected 1, offering advantages such as simple operation, fast connection speed, and stable performance.

[0035] In some embodiments, the end of the sleeve 4 can be further extended to the outer periphery of the rigid extruder 2 to prevent the plastic extruder 5 from coming out of the sleeve 4 during the extrusion process. At the same time, the sleeve 4 has a guiding effect on the rigid extruder 2, which enables the force of the rigid extruder 2 to be applied more accurately to the end of the plastic extruder 5.

[0036] The depth and shape of the extrusion groove 6 can be set according to actual needs. To further enhance the gripping force of the connecting joint on the two parts 1 to be connected, the depth of the extrusion groove 6 can be set to gradually become shallower from the middle to both ends. Furthermore, the inner wall of the extrusion groove 6 can be set to be pleated to enhance the friction between the sleeve 4 and the plastic extrusion 5. As a preferred embodiment, in order to make the force on the two parts 1 to be connected more even, the extrusion groove 6 can be further set to be symmetrical about the middle cross section of the sleeve 4.

[0037] During assembly, in order to position the sleeve 4 at its initial installation position, the rigid extrusion member 2 provided in this embodiment is provided with a limiting boss 7. The limiting boss 7 can be set as annular or dot-shaped thin-walled protrusions, see details. Figure 2 When the rigid extruder 2 extrudes the plastic extruder 5, the limiting boss 7 can detach from the rigid extruder 2 under the push of the sleeve 4.

[0038] See also Figure 2In this embodiment, the rigid extrusion member 2 includes multiple rigid components that surround the part 1 to be connected. Each rigid component has a groove 3 on its outer periphery, and at least one fastener is fitted onto the outer periphery of each rigid component. The fastener is disposed within the groove 3 to keep the rigid components relatively fixed. Optionally, the fastener can be an elastic element, and the number of fasteners can be selected according to actual fastening requirements. To prevent the multiple rigid components of the rigid extrusion member 2 from accidentally falling off, when the rigid extrusion member 2 is pushed, the groove 3 with the fastener can be pushed into the sleeve 4. As one embodiment of this application, each rigid extrusion member 2 can be composed of two rigid components joined together.

[0039] In this embodiment, a rigid extruder 2 is provided at each end of the plastic extruder 5 to limit the ends of the plastic extruder 5. As an equivalent deformation, a sleeve 4 that can limit one end of the plastic extruder 5 can also be used. For example, an annular step is provided at the end of the sleeve 4, so that one end of the plastic extruder 5 abuts against the step surface of the annular step, and a rigid extruder 2 is provided only at the other end of the plastic extruder 5 for limiting.

[0040] The connecting joint provided in this embodiment uses a rigid extruder 2 to compress a plastic extruder 5, causing the plastic extruder 5 to deform and fill into the extrusion groove 6, providing greater friction and improving the gripping force of the overall structure. The extrusion method is used to install and fix the parts to be connected 1, which has the advantages of simple operation, fast connection speed and stable performance. The connecting joint can realize the simple and efficient connection of two parts to be connected 1. Compared with the connection of two parts to be connected 1 by welding, the work efficiency is improved, the construction environment is protected, and the on-site construction safety and quality level are improved.

[0041] Example 2:

[0042] Please see Figure 1-2 This embodiment provides a method for using a connector, which is implemented using the connector described in Embodiment 1, and includes the following steps:

[0043] Fit the rigid extrusion part 2 onto the part 1 to be connected;

[0044] The sleeve 4 is placed on the outer periphery of the plastic extrusion 5;

[0045] The two parts to be connected 1 are inserted into the plastic extruder 5 respectively, and the rigid extruder 2 is pushed to deform the plastic extruder 5 and fill the extrusion groove 6, thereby achieving relative fixation of the two parts to be connected 1.

[0046] In this embodiment, two rigid extrusion pieces 2 are provided. In use, first, the two rigid extrusion pieces 2 are fitted onto the near ends of the two parts 1 to be connected. Then, the sleeve 4 is fitted onto the plastic extrusion piece 5. Next, the plastic extrusion piece 5 is fitted onto one of the parts 1 to be connected and abuts against the rigid extrusion piece 2 thereon, so that one end of the sleeve 4 abuts against the limiting boss 7 of the rigid extrusion piece 2. Then, the near ends of the two parts 1 to be connected are aligned, and the two parts 1 to be connected are moved towards each other, so that both parts 1 are fitted into the plastic extrusion piece 5. The positions of the two rigid extrusion pieces 2 on the two parts 1 to be connected are adjusted, and the two parts 1 to be connected are then... Marking ensures that the two parts 1 to be connected are of the same length inside the plastic extrusion 5, while simultaneously engaging the sleeve 4 between the limiting bosses 7 of the two rigid extrusions 2. Finally, pressure is applied to the rigid extrusions 2 using an extrusion tool, causing the two rigid extrusions 2 to move towards each other and into the sleeve 4. The sleeve 4 removes the limiting bosses 7 under shearing force. The two rigid extrusions 2 apply extrusion force to the plastic extrusion 5, causing it to deform and fill the extrusion groove 6, thereby increasing the friction between the plastic extrusion 5 and the sleeve 4, and between the plastic extrusion 5 and the parts 1 to be connected, and improving the overall gripping force of the structure.

[0047] The connection method provided in this embodiment can more efficiently and quickly install and fix the connection joint and the parts to be connected 1, and can realize the simple and efficient connection of the two parts to be connected 1. Compared with the connection of the two parts to be connected 1 by welding, the work efficiency is improved, the construction environment is protected, and the on-site construction safety and quality level are improved.

[0048] Example 3:

[0049] Please see Figure 1-2 This embodiment provides a reinforcing bar, which uses the aforementioned connecting joint to achieve the connection between two reinforcing bars.

[0050] In this embodiment, the steel bars to be connected are connected through a connector, eliminating the need to pre-process the threads on the steel bars. The connection is fixed by extrusion, which is simple to operate, fast to connect, stable in performance, protects the construction environment, and improves the safety and quality of construction.

[0051] Multiple steel bars in the on-site assembly of steel cages can be connected simultaneously using connectors, which can effectively improve the on-site construction efficiency of steel cages, reduce labor and crane shift costs, and lower overall costs.

[0052] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A connecting connector, characterized in that, The assembly includes a sleeve (4), a plastic extrusion piece (5), and a rigid extrusion piece (2). The plastic extrusion piece (5) is sleeved on two parts (1) to be connected, and the rigid extrusion piece (2) is located at the end of the plastic extrusion piece (5). The sleeve (4) is sleeved on the outer periphery of the plastic extrusion piece (5). An extrusion groove (6) is reserved inside the sleeve (4). The plastic extrusion piece (5) can deform under the extrusion of the rigid extrusion piece (2) and fill the extrusion groove (6), thereby achieving relative fixation of the two parts (1) to be connected. The rigid extrusion piece (2) is provided with a limiting boss (7) to limit the initial installation position of the sleeve (4). When the rigid extrusion piece (2) extrudes the plastic extrusion piece (5), the limiting boss (7) can be disengaged from the rigid extrusion piece (2) under the push of the sleeve (4). The depth of the extrusion groove (6) is set to gradually become shallower from the middle to both ends. The rigid extrusion member (2) includes multiple rigid components. The rigid extrusion member (2) is assembled from multiple rigid components. The multiple rigid components surround the surrounding area of ​​the component to be connected. Each rigid component is fitted with at least one fastener on its outer periphery to keep each rigid component relatively fixed and to fix the rigid extrusion member (2) on the component to be connected (1).

2. The connecting joint according to claim 1, characterized in that, Each of the rigid components has a groove (3) on its outer periphery, and the fastener is disposed in the groove (3).

3. The connecting joint according to claim 1, characterized in that, The fastener is an elastic element.

4. The connecting joint according to claim 1, characterized in that, The rigid extrusion member (2) is provided at both ends of the plastic extrusion member (5).

5. A method of using the connecting joint as described in any one of claims 1-4, characterized in that, Includes the following steps: The rigid extrusion member (2) is fitted onto the part to be connected; The sleeve (4) is fitted onto the outer periphery of the plastic extrusion (5); The two parts to be connected (1) are inserted into the plastic extruder (5) respectively, and the rigid extruder (2) is pushed to deform the plastic extruder (5) and fill the extrusion groove (6), thereby achieving relative fixation of the two parts to be connected (1).

6. A steel reinforcement cage comprising a plurality of steel bars, characterized in that, Multiple reinforcing bars are connected by a connection joint as described in any one of claims 1-4.

Images