Sleeve steel bar lap joint structure

Abstract

The utility model discloses a sleeve steel bar bending lap joint structure, including sleeve, first connecting steel bar and second connecting steel bar, the sleeve is cylindrical, the first connecting steel bar is provided with first bending part at the end, second connecting steel bar is provided with second bending part at the end, first bending part and second bending part all are located in the sleeve, and first bending part and second bending part contact, first connecting steel bar and second connecting steel bar all are located outside the sleeve. This kind of structure has following beneficial effect: utilize first bending part and second bending part to cooperate with sleeve, increase the connecting strength between first connecting steel bar and second connecting steel bar, and reduce the probability that sleeve happens deflection.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a sleeve steel bar bending and lap splicing structure. Background Technology

[0002] Grouting sleeves are a commonly used auxiliary connector in prefabricated buildings. Their function is to connect the reinforcing bars on two prefabricated components. The lap joint structure of the grouting sleeve for two reinforcing bars can be roughly referred to in the attached figure of patent publication document CN206110492U. In this lap joint structure, the two reinforcing bars do not contact each other, and the connection reliability between the two reinforcing bars is relatively low. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a sleeve rebar bending and lap splicing structure. By utilizing the first and second bends to cooperate with the sleeve, the connection strength between the first and second connecting rebars is increased, and the probability of sleeve deflection is reduced.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A sleeve-type rebar bending and lap splicing structure includes a sleeve, a first connecting rebar, and a second connecting rebar. The sleeve is cylindrical. The first connecting rebar has a first bend at its end, and the second connecting rebar has a second bend at its end. Both the first and second bends are located inside the sleeve and are in contact with each other. Both the first and second connecting rebars are located outside the sleeve.

[0006] In this type of lap joint structure, the first bend of the first connecting steel bar is located inside the sleeve, and the second bend of the second connecting steel bar is located inside the sleeve. The first bend is a part of the first connecting steel bar, and the second bend is a part of the second connecting steel bar. The sleeve connects the first bend and the second bend together. This lap joint structure is more robust, and since both the first bend and the second bend are in contact with the sleeve, the probability of the sleeve deflecting during grouting is further reduced. In addition, in this structure, the first connecting steel bar and the second connecting steel bar are lapped together through the first bend and the second bend, which makes the first connecting steel bar and the second connecting steel bar not be on the same straight line.

[0007] In summary, this lap joint structure utilizes the first and second bends to cooperate with the sleeve, increasing the connection strength between the first and second connecting steel bars and reducing the probability of sleeve deflection.

[0008] Optionally, the inner wall of the sleeve is provided with a protrusion, and the outer wall of the sleeve is provided with a concave shape, wherein the protrusion is spiral and the concave shape is spiral.

[0009] The protrusions and concave sections are designed to engage with the grout, improving the connection stability of the entire mechanism after grouting.

[0010] Optionally, the concave cross-section is semi-circular, and the convex cross-section is semi-circular.

[0011] The semi-circular protrusions and concave areas can increase the contact surface with the slurry, thereby increasing the bonding strength between the entire structure and the slurry.

[0012] Optionally, the lengths of the first bend and the second bend are equal.

[0013] Optionally, the length of the first bend is equal to the length of the sleeve.

[0014] Optionally, the first connecting steel bar and the second connecting steel bar are in a parallel state.

[0015] Optionally, the first connecting steel bar and the second connecting steel bar are not on the same straight line.

[0016] Optionally, the sleeve is made of metal.

[0017] The beneficial effects of this utility model are: by using the first bending part and the second bending part to cooperate with the sleeve, the connection strength between the first connecting steel bar and the second connecting steel bar is increased, and the probability of the sleeve deflection is reduced. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a simplified schematic diagram of a sleeve steel bar bending and lap splicing structure;

[0020] Figure 2 This is a simplified schematic diagram of the sleeve shape.

[0021] The reference numerals in the figure are as follows: 1. Sleeve; 101. Concave; 102. Protruding; 2. First connecting steel bar; 201. First bend; 3. Second connecting steel bar; 301. Second bend. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] As attached Figure 1 and appendix Figure 2 As shown, a sleeve 1 with bent and lapped steel bar structure includes a sleeve 1, a first connecting steel bar 2 and a second connecting steel bar 3. The sleeve 1 is cylindrical. The first connecting steel bar 2 has a first bent portion 201 at its end, and the second connecting steel bar 3 has a second bent portion 301 at its end. The first bent portion 201 and the second bent portion 301 are both located inside the sleeve 1 and are in contact with each other. The first connecting steel bar 2 and the second connecting steel bar 3 are both located outside the sleeve 1.

[0026] In this type of lap joint structure, the first bend 201 of the first connecting steel bar 2 is located inside the sleeve 1, and the second bend 301 of the second connecting steel bar 3 is located inside the sleeve 1. The first bend 201 is a part of the first connecting steel bar 2, and the second bend 301 is a part of the second connecting steel bar 3. The sleeve 1 connects the first bend 201 and the second bend 301 together. This lap joint structure is more robust, and since both the first bend 201 and the second bend 301 are in contact with the sleeve 1, the probability of the sleeve 1 deflecting during grouting is further reduced. In this structure, the first connecting steel bar 2 and the second connecting steel bar 3 are lapped together through the first bend 201 and the second bend 301, which makes the first connecting steel bar 2 and the second connecting steel bar 3 not on the same straight line.

[0027] In summary, this lap joint structure utilizes the first bend 201 and the second bend 301 to cooperate with the sleeve 1, which increases the connection strength between the first connecting steel bar 2 and the second connecting steel bar 3, and reduces the probability of the sleeve 1 deflecting.

[0028] As attached Figure 1 and appendix Figure 2 As shown, a protrusion 102 is provided on the inner wall of the sleeve 1, and a concave part 101 is provided on the outer wall of the sleeve 1. The protrusion 102 is spiral in shape, and the concave part 101 is spiral in shape.

[0029] The protrusion 102 and the concave 101 are designed to engage with the grout, thereby improving the connection stability of the entire mechanism after grouting.

[0030] As attached Figure 1 and appendix Figure 2 As shown, the cross-section of the concave 101 is semi-circular, and the cross-section of the convex 102 is semi-circular.

[0031] The semi-circular protrusions 102 and concave sections 101 can increase the contact surface with the slurry, thereby increasing the bonding strength between the entire structure and the slurry.

[0032] As attached Figure 1 and appendix Figure 2 As shown, the lengths of the first bend 201 and the second bend 301 are equal.

[0033] As attached Figure 1 and appendix Figure 2 As shown, the length of the first bend 201 is equal to the length of the sleeve.

[0034] As attached Figure 1 and appendix Figure 2 As shown, the first connecting steel bar 2 and the second connecting steel bar 3 are in a parallel state.

[0035] As attached Figure 1 and appendix Figure 2 As shown, the first connecting steel bar 2 and the second connecting steel bar 3 are not on the same straight line.

[0036] As attached Figure 1 and appendix Figure 2 As shown, sleeve 1 is made of metal.

[0037] As one method of use, the first bent part 201 and the second bent part 301 can be inserted into the sleeve first, then one end of the sleeve can be closed, grout can be injected into the sleeve, and the other end of the sleeve can be closed after the grouting is completed.

[0038] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sleeve-type steel bar bending and lap splicing structure, characterized in that, The device includes a sleeve, a first connecting steel bar, and a second connecting steel bar. The sleeve is cylindrical. The first connecting steel bar has a first bend at its end, and the second connecting steel bar has a second bend at its end. Both the first and second bends are located inside the sleeve and are in contact with each other. Both the first and second connecting steel bars are located outside the sleeve.

2. The sleeve-type steel bar bending and lap splice structure according to claim 1, characterized in that, The inner wall of the sleeve has a protrusion, and the outer wall of the sleeve has a concave shape. The protrusion is spiral-shaped, and the concave shape is spiral-shaped.

3. The sleeve steel bar bending and lap splice structure according to claim 2, characterized in that, The concave section is semi-circular, and the convex section is semi-circular.

4. The sleeve steel bar bending lap splice structure according to claim 1, characterized in that, The lengths of the first bend and the second bend are equal.

5. The sleeve-type steel bar bending and lap splice structure according to claim 4, characterized in that, The length of the first bend is equal to the length of the sleeve.

6. The sleeve-shaped steel bar bending and lap splice structure according to claim 1, characterized in that, The first connecting steel bar and the second connecting steel bar are in a parallel state.

7. The sleeve-shaped steel bar bending and lap splice structure according to claim 6, characterized in that, The first connecting steel bar and the second connecting steel bar are not on the same straight line.

8. The sleeve steel bar bending lap splice structure according to claim 1, characterized in that, The sleeve is made of metal.

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