Steel bar sleeve convenient to install

Abstract

The invention relates to the technical field of reinforcing steel bar sleeves, and discloses a reinforcing steel bar sleeve convenient to install, which comprises a sleeve body, an inner hole at one end of the sleeve body is provided with thread teeth, an inner hole at the other end of the sleeve body is a mounting cavity, an inner sleeve body is arranged in the mounting cavity, and the thread end of the sleeve body is in threaded connection with the end part of a first reinforcing steel bar section; the other end of the sleeve body is arranged at the end of the second reinforcing steel bar section in a sleeving mode, the end of the second reinforcing steel bar section is inserted into the inner sleeve body, the threaded connection position of the first reinforcing steel bar section and the sleeve body is screwed, and butt joint of the first reinforcing steel bar section and the second reinforcing steel bar section is achieved. According to the steel bar sleeve, the threaded connecting part is arranged at one end, the inner sleeve body is arranged at the other end, the steel bar sleeve is firstly in threaded connection with the first steel bar section, then the first steel bar section is held by hand, the steel bar sleeve is arranged at the end of the second steel bar section in a sleeving mode, particularly installation is carried out in a vertical state, rapidness and labor saving are achieved, and therefore the effect of convenient installation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar sleeves, and in particular to a steel bar sleeve which is easy to install. Background Art

[0002] The steel sleeve is a connector for connecting steel bars and has an internal thread corresponding to the thread head thread. The construction process is simple: the ends of the steel bars are processed into straight threads by rolling technology, and the two steel bars are connected to each other with the corresponding connecting sleeves. Common steel sleeves are mostly threaded structures at both ends. For example, in the prior art, the patent document with announcement number CN215109911U discloses a steel sleeve that can be efficiently installed, including a sleeve body, a bolt, two sets of top shafts and two sets of prompting devices. The top and bottom ends of the sleeve body are both provided with connecting threaded holes. A first mounting hole is horizontally arranged in the middle of the side wall of the main body, and an internal thread is arranged on the inner wall of the first mounting hole. A bolt is threadedly inserted into the first mounting hole, and a top block is fixedly arranged on one end of the bolt inserted into the first mounting hole. The inner ends of the two groups of connecting threaded holes are both provided with through holes that vertically penetrate the first mounting hole. Two groups of top shafts are slidably installed inside the two groups of through holes. Anti-slip devices are arranged on the two groups of top shafts to prevent the top shafts from slipping out of the through holes. The two groups of prompting devices are respectively installed on the side walls of the sleeve body, and are used to provide a prompt for screwing them into place when connecting the steel bars.

[0003] During use, the steel bar and the steel bar sleeve are threadedly assembled together, and the steel bar or the steel bar sleeve needs to be rotated many times. In particular, when vertically installing the upper steel bar section, the steel bar needs to be held by hand, and the thread teeth at the end of the steel bar need to be aligned with the threads of the steel bar sleeve, and rotated. The operation is very tiring, which makes the installation very inconvenient. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming of the existing technology that the steel bar sleeve is not convenient to install, and to propose a steel bar sleeve that is easy to install.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a steel bar sleeve that is easy to install, including a sleeve body, an inner hole at one end of the sleeve body is provided with threaded teeth, the inner hole at the other end of the sleeve body is an installation cavity, an inner sleeve body is provided in the installation cavity, the threaded end of the sleeve body is threadedly connected to the end of the first steel bar segment, the other end of the sleeve body is sleeved on the end of the second steel bar segment, and the end of the second steel bar segment is inserted into the interior of the inner sleeve body, and the threaded connection between the first steel bar segment and the sleeve body is tightened to achieve the docking of the first steel bar segment and the second steel bar segment.

[0006] Preferably, the installation cavity of the sleeve body is a tapered structure with a narrowed mouth, the outer surface of the inner sleeve body is provided with a tapered surface, the tapered surface of the inner sleeve body is in sliding contact with the inner wall of the installation cavity, the inner wall of the inner sleeve body is provided with a bite groove, and the surface of the sleeve body is provided with a flat surface. When the steel bars are butt-jointed and installed in a vertical state, the steel bar sleeve is first threadedly connected to the first steel bar segment, and the first steel bar segment is held by hand, and the steel bar sleeve is put on the end of the second steel bar segment. This is quick and labor-saving, thereby achieving an effect of convenient installation.

[0007] Preferably, an open groove is provided on the surface of the inner sleeve body, which divides the inner sleeve body into left and right lobe structures, and a first connecting portion is reserved between the left and right lobe structures, and the left and right lobe structures are connected by the first connecting portion; a dividing groove is provided on the surface of the inner sleeve body, which divides the left and right lobe structures into four lobe structures, and two second connecting portions are reserved between the four lobe structures, and the inner sleeve bodies on both sides of the dividing groove are connected by the two second connecting portions.

[0008] The outer circular surface of the inner sleeve is provided with a cylindrical surface, and an annular inner wall is reserved in the installation cavity of the sleeve body. Under the elastic force of the first connecting part and the second connecting part, the cylindrical surface of the inner sleeve contacts the annular inner wall, so that the diameter of the inner sleeve is compressed and becomes smaller, which makes it convenient to install the inner sleeve into the sleeve body and remove the inner sleeve. The inner sleeve can be replaced according to the thickness of the steel bar.

[0009] Preferably, the upper end of the inner sleeve is a friction plane. When the threaded connection between the first steel bar segment and the sleeve body is tightened, the end of the first steel bar segment extends into the installation cavity, and the end of the second steel bar segment is pressed against the friction plane, so that the inner hole of the inner sleeve shrinks and hugs the surface of the second steel bar segment. The friction plane is roughened to form a triangular groove on the friction plane. The end of the first steel bar segment is pressed against the friction plane to increase friction. The triangular groove has the function of restraining the rotation of the first steel bar segment.

[0010] Preferably, the second steel bar segment is threaded steel bar. When the inner hole of the inner sleeve shrinks and hugs the surface of the second steel bar segment, the engaging groove and the protrusion on the surface of the threaded steel bar engage together, and the direct insertion and installation method simplifies the operation and improves the installation speed.

[0011] Preferably, the end of the second steel bar segment is also provided with thread teeth. When the inner hole of the inner sleeve shrinks and hugs the surface of the second steel bar segment, the engagement groove and the threaded end of the second steel bar segment engage together, and there is no need to rotate the steel bar sleeve, which simplifies the operation and improves the installation speed.

[0012] The present invention has the following beneficial effects:

[0013] 1. The steel bar sleeve proposed in the present invention is provided with a threaded connection portion at one end and an inner sleeve body at the other end. The steel bar sleeve is first threadedly connected to the first steel bar segment, and the first steel bar segment is held by hand, and the steel bar sleeve is sleeved on the end of the second steel bar segment. Especially, the installation in a vertical state is faster and more labor-saving, thereby achieving the effect of convenient installation.

[0014] 2. The steel bar sleeve proposed by the present invention has an inner sleeve body arranged in the sleeve body. When the first steel bar segment located on the upper side is tightened, the first steel bar segment presses the inner sleeve body downward, so that the inner sleeve body hugs the second steel bar segment, and a one-time screwing operation is achieved, so that the steel bar sleeve can fix the first steel bar segment and the second steel bar segment at the same time, which greatly improves the operation speed;

[0015] As the first steel bar segment is screwed downward and the inner sleeve is pressed downward at the same time, a fixing effect is achieved. When the exposed length of the thread teeth of the first steel bar segment is longer, it can be inferred that it has not been tightened. This can be used as a reference to achieve the function of leak-proof tightening. The leak-proof tightening mentioned here refers to the leak-proof tightening of the ordinary steel bar sleeve for the first steel bar segment and the leak-proof tightening of the first steel bar segment.

[0016] 3. The steel bar sleeve proposed in the present invention has a friction plane arranged at the upper end of the inner sleeve body, the friction plane is roughened, a triangular groove is formed on the friction plane, the end of the first steel bar segment is pressed against the friction plane to increase the friction force, the friction force restrains the rotation of the first steel bar segment, and the pressure of the first steel bar segment strengthens the effect of the inner sleeve body holding the second steel bar segment, so that the steel bar sleeve has a self-locking effect, and the firmness and reliability of the connection are improved.

[0017] 4. The steel bar sleeve proposed by the present invention can connect steel bars with two threads or steel bars with a single thread. When connecting steel bars with a single thread, only one end of the steel bar needs to be threaded during steel bar processing, which improves processing speed and reduces the workload of protecting the steel bar thread.

[0018] It should be noted that usually after the thread teeth of the steel bar are processed, a protective sleeve needs to be installed on the thread teeth. The steel bar sleeve can replace the protective sleeve to avoid damage to the thread teeth during transportation and protect the thread teeth of the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the steel bar sleeve proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the front cross-section structure of the steel bar sleeve proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the sleeve body and the inner sleeve body proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner sleeve body proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the triangular grooves of the friction plane proposed by the present invention.

[0024] In the figure: 1 sleeve body, 2 installation cavity, 3 inner sleeve body, 4 first steel bar segment, 5 second steel bar segment, 6 conical surface, 7 bite groove, 8 open groove, 9 first connecting part, 10 separation groove, 11 second connecting part, 12 cylindrical surface, 13 annular inner wall, 14 friction plane, 15 flat surface. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-Figure 5 A steel bar sleeve that is easy to install includes a sleeve body 1. The inner hole of one end of the sleeve body 1 is provided with thread teeth, the inner hole of the other end of the sleeve body 1 is an installation cavity 2, and an inner sleeve body 3 is provided in the installation cavity 2. The threaded end of the sleeve body 1 is threadedly connected with the end of the first steel bar segment 4, and the other end of the sleeve body 1 is sleeved on the end of the second steel bar segment 5, and the end of the second steel bar segment 5 is inserted into the interior of the inner sleeve body 3. The threaded connection between the first steel bar segment 4 and the sleeve body 1 is tightened to achieve the docking of the first steel bar segment 4 and the second steel bar segment 5.

[0028] Specifically, a flat surface 15 is provided on the surface of the sleeve body 1, and a wrench can be conveniently placed on the flat surface 15 for clamping, thereby facilitating the tightening operation.

[0029] The mounting cavity 2 of the sleeve body 1 is a tapered structure with a narrowed opening. The outer surface of the inner sleeve body 3 is provided with a tapered surface 6. The tapered surface 6 of the inner sleeve body 3 is in sliding contact with the inner wall of the mounting cavity 2. The inner wall of the inner sleeve body 3 is provided with a bite groove 7.

[0030] An opening groove 8 is provided on the surface of the inner sleeve 3 , which divides the inner sleeve 3 into a left and right lobe structure. A first connecting portion 9 is reserved between the left and right lobe structures, and the left and right lobe structures are connected by the first connecting portion 9 .

[0031] A dividing groove 10 is provided on the surface of the inner sleeve 3 , which divides the left and right petal structures into four petal structures, and two second connecting portions 11 are reserved between the four petal structures. The inner sleeves 3 on both sides of the dividing groove 10 are connected via the two second connecting portions 11 .

[0032] The outer circumferential surface of the inner sleeve body 3 is provided with a cylindrical surface 12 , and an annular inner wall 13 is reserved in the installation cavity 2 of the sleeve body 1 . Under the elastic force of the first connecting part 9 and the second connecting part 11 , the cylindrical surface 12 of the inner sleeve body 3 contacts the annular inner wall 13 .

[0033] During use, the sleeve body 1 is first threadedly connected to the first steel bar segment 4, and the first steel bar segment 4 is held in the hand, and the steel bar sleeve is sleeved on the end of the second steel bar segment 5. Figure 1 As shown, the first steel bar segment 4 is then tightened. Figure 2 As shown, especially when installed in a vertical state, it is faster and more labor-saving, thus achieving the effect of convenient installation.

[0034] Taking the example that both the first steel bar segment 4 and the second steel bar segment 5 are threaded steel bars, it should be noted that when the first steel bar segment 4 and the second steel bar segment 5 are smooth steel bars, they can be rolled to produce raised portions on their surfaces.

[0035] When processing the steel bar, the first steel bar segment 4 and the second steel bar segment 5 are processed with threads at one end, such as Figure 2 As shown, the first steel bar segment 4 presses down the inner sleeve 3, causing the inner hole of the inner sleeve 3 to shrink and hug the surface of the second steel bar segment 5, and the engaging groove 7 engages with the protrusion on the surface of the threaded steel bar. This direct insertion method simplifies the operation and improves the installation speed.

[0036] The first steel bar segment 4 and the second steel bar segment 5 are threaded at both ends, which is not shown in the drawings. That is, the end of the second steel bar segment 5 is also provided with thread teeth. When the first steel bar segment 4 presses down the inner sleeve 3, so that the inner hole of the inner sleeve 3 shrinks and hugs the surface of the second steel bar segment 5, the bite groove 7 bites together with the threaded end of the second steel bar segment 5, and there is no need to rotate the steel bar sleeve and the threaded connection of the second steel bar segment 5, which simplifies the operation and improves the installation speed.

[0037] The steel bar sleeve proposed by the present invention can connect steel bars with threads at both ends or steel bars with threads at one end. When connecting steel bars with threads at one end, only the threads at one end of the steel bar need to be added during the steel bar processing, thereby increasing the processing speed and reducing the workload of protecting the steel bar threads.

[0038] It should be noted that usually after the thread teeth of the steel bar are processed, a protective sleeve needs to be installed on the thread teeth. The steel bar sleeve can replace the protective sleeve to avoid damage to the thread teeth during transportation and protect the thread teeth of the steel bar.

[0039] In this embodiment, the upper end of the inner sleeve body 3 is a friction plane 14. When the threaded connection between the first steel bar segment 4 and the sleeve body 1 is tightened, the end of the first steel bar segment 4 extends into the installation cavity 2, and the end of the second steel bar segment 5 is pressed against the friction plane 14, so that the inner hole of the inner sleeve body 3 shrinks and hugs the surface of the second steel bar segment 5.

[0040] Among them, Figure 5 As shown, the friction plane 14 is roughened to form a triangular groove on the friction plane 14 , and the end of the first steel bar segment 4 is pressed against the friction plane 14 to increase the friction force. The triangular groove has the function of restraining the rotation of the first steel bar segment 4 .

[0041] A friction plane 14 is arranged at the upper end of the inner sleeve 3, and the friction plane 14 is roughened. The end of the first steel bar segment 4 is pressed against the friction plane 14 to increase the friction force. The friction force restrains the rotation of the first steel bar segment 4, and the pressure of the first steel bar segment 4 strengthens the effect of the inner sleeve 3 holding the second steel bar segment 5, so that the steel bar sleeve has a self-locking effect, thereby improving the convenience, firmness and reliability of the steel bar sleeve connection.

[0042] The steel bar sleeve proposed by the present invention has an inner sleeve body 3 arranged in the sleeve body 1. When the first steel bar segment 4 located on the upper side is tightened, the first steel bar segment 4 presses the inner sleeve body 3 downward, so that the inner sleeve body 3 holds the second steel bar segment 5 tightly, and a one-time screwing operation is achieved, so that the steel bar sleeve can fix the first steel bar segment 4 and the second steel bar segment 5 at the same time, which greatly improves the operation speed.

[0043] As the first steel bar segment 4 is screwed downward and the inner sleeve 3 is pressed downward at the same time, a fixing effect is achieved. When the exposed length of the threaded teeth of the first steel bar segment 4 is longer, it can be inferred that no tightening operation has been performed on it. This can be used as a reference to achieve the function of leak-proof tightening. The leak-proof tightening here refers to the leak-proof tightening of the first steel bar segment 4 and the leak-proof tightening of the second steel bar segment 5 by ordinary steel bar sleeves.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel bar sleeve that is easy to install, comprising a sleeve body (1), characterized in that: The inner hole at one end of the sleeve body (1) is provided with threaded teeth, the inner hole at the other end of the sleeve body (1) is a mounting cavity (2), an inner sleeve body (3) is provided in the mounting cavity (2), the threaded end of the sleeve body (1) is threadedly connected to the end of the first steel bar segment (4), the other end of the sleeve body (1) is sleeved on the end of the second steel bar segment (5), and the end of the second steel bar segment (5) is inserted into the interior of the inner sleeve body (3), and the threaded connection between the first steel bar segment (4) and the sleeve body (1) is tightened to achieve docking of the first steel bar segment (4) and the second steel bar segment (5).

2. A steel bar sleeve that is easy to install according to claim 1, characterized in that: The installation cavity (2) of the sleeve body (1) is a tapered structure with a narrowed opening, the outer surface of the inner sleeve body (3) is provided with a tapered surface (6), the tapered surface (6) of the inner sleeve body (3) is in sliding contact with the inner wall of the installation cavity (2), and the inner wall of the inner sleeve body (3) is provided with a bite groove (7).

3. A steel bar sleeve that is easy to install according to claim 2, characterized in that: An open groove (8) is provided on the surface of the inner casing (3), and the open groove (8) divides the inner casing (3) into a left and right lobe structure, and a first connecting portion (9) is reserved between the left and right lobe structures, and the left and right lobe structures are connected via the first connecting portion (9).

4. A steel bar sleeve that is easy to install according to claim 3, characterized in that: A separation groove (10) is provided on the surface of the inner sleeve (3), the separation groove (10) separates the left and right two-petal structures into a four-petal structure, and two second connecting portions (11) are reserved between the four-petal structures, and the inner sleeves (3) on both sides of the separation groove (10) are connected via the two second connecting portions (11).

5. A steel bar sleeve that is easy to install according to claim 4, characterized in that: The outer circumferential surface of the inner sleeve body (3) is provided with a cylindrical surface (12), and an annular inner wall (13) is reserved in the installation cavity (2) of the sleeve body (1). Under the elastic force of the first connecting part (9) and the second connecting part (11), the cylindrical surface (12) of the inner sleeve body (3) contacts the annular inner wall (13).

6. A steel bar sleeve that is easy to install according to claim 5, characterized in that: The upper end of the inner sleeve (3) is a friction plane (14). When the threaded connection between the first steel bar segment (4) and the sleeve body (1) is tightened, the end of the first steel bar segment (4) extends into the installation cavity (2), and the end of the second steel bar segment (5) is pressed against the friction plane (14), so that the inner hole of the inner sleeve (3) shrinks and hugs the surface of the second steel bar segment (5).

7. A steel bar sleeve that is easy to install according to claim 6, characterized in that: The second steel bar segment (5) is a threaded steel bar. When the inner hole of the inner sleeve (3) shrinks and hugs the surface of the second steel bar segment (5), the bite groove (7) bites together with the protrusion on the surface of the threaded steel bar.

8. The steel bar sleeve that is easy to install according to claim 6, characterized in that: The end of the second steel bar segment (5) is also provided with thread teeth, and when the inner hole of the inner sleeve (3) shrinks and hugs the surface of the second steel bar segment (5), the bite groove (7) bites together with the threaded end of the second steel bar segment (5).

9. A steel bar sleeve that is easy to install according to any one of claims 1 to 8, characterized in that: The surface of the sleeve body (1) is provided with a flat surface (15).

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