Straight thread high-strength steel bar mechanical connecting sleeve

Abstract

The utility model relates to the field of sleeves, in particular to a straight thread high-strength steel bar mechanical connection sleeve, and aims to solve the technical problems that an existing straight thread connection sleeve cannot be effectively fixed after being connected, the connection part is easy to loosen, and the two sides of the exterior of the sleeve are easy to shake, so that the connection is unstable. According to the technical scheme, the straight thread high-strength steel bar mechanical connecting sleeve comprises a mechanical sleeve body and further comprises external connecting cylinders, a telescopic rod, a fixing assembly and a clamping assembly, the external connecting cylinders are installed on the left side and the right side of the outer wall of the mechanical sleeve body, the fixing assembly is arranged in the mechanical sleeve body, and the outer wall of the telescopic rod is sleeved with the clamping assembly; by means of the fixing assembly, when two steel bars make contact in the mechanical sleeve, the steel bars can be effectively fixed and prevented from loosening during vibration, meanwhile, according to the steel bars exposed outside, the clamping assembly can further clamp and fix the steel bars by adjusting the length of the telescopic rod, and the connection stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of sleeves, in particular to a straight thread high-strength steel bar mechanical connection sleeve. Background Art

[0002] The steel bar straight thread connection sleeve, also known as the steel bar joint, is a connector used to connect steel bars and has a thread corresponding to the thread head. The construction process is to process the end of the steel bar into a straight thread by rolling technology, and use the corresponding connecting sleeve to connect the two steel bars to each other.

[0003] The existing straight thread connection sleeve cannot effectively fix the two steel bars after connecting them. When vibration occurs, the connection is prone to loosening. At the same time, since the steel bars are usually long, fixing them only through the connection may cause the outer sides of the sleeve to shake easily, resulting in an unstable connection.

[0004] Therefore, in view of the problem that the above-mentioned existing straight thread connection sleeves cannot be effectively fixed after connection, the connection is prone to loosening, and the two sides of the sleeve are prone to shaking, resulting in unstable connection, a straight thread high-strength steel bar mechanical connection sleeve has been developed. Through the setting of the fixing component, the two steel bars can be effectively fixed when they are in contact inside the mechanical sleeve to prevent loosening during vibration and improve safety. At the same time, according to the steel bars exposed on the outside, by adjusting the length of the telescopic rod, the clamping component can further clamp and fix them to avoid shaking on both sides of the outside and improve the stability of the connection. Utility Model Content

[0005] In order to overcome the problem that the existing straight thread connection sleeve cannot be effectively fixed after connection, the connection is prone to loosening, and the two sides of the sleeve are prone to shaking, resulting in unstable connection.

[0006] The technical solution of the utility model is: a straight thread high-strength steel bar mechanical connection sleeve, including a mechanical sleeve, and also includes an external tube, a telescopic rod, a fixing assembly and a clamping assembly. The external tube is installed on the left and right sides of the outer wall of the mechanical sleeve, and the interior of the mechanical sleeve is provided with a fixing assembly. The clamping assembly is sleeved on the outer wall of the telescopic rod, and one end of the telescopic rod facing the fixing assembly is connected to the outer wall of the mechanical sleeve.

[0007] Preferably, the setting of the fixing component can effectively fix the two steel bars when they are in contact inside the mechanical sleeve, prevent them from loosening during vibration, and improve safety. At the same time, according to the steel bars exposed outside, by adjusting the length of the telescopic rod, the clamping component can further clamp and fix them, avoiding shaking on both sides of the outside and improving the stability of the connection.

[0008] Preferably, the fixing assembly includes an extrusion screw, an extrusion plate and an extrusion head. One end of the extrusion screw passes through the outer wall of the mechanical sleeve through an opening and is installed with an arc-shaped extrusion plate. An upwardly protruding extrusion head is provided on the inner wall of the extrusion plate. When two steel bars come into contact, the extrusion screw is rotated to move the extrusion plate toward the steel bars. The arc-shaped extrusion plate can fit the outer wall of the steel bars over a larger area, while allowing the extrusion head to fit tightly against the steel bars.

[0009] Preferably, the extrusion head is cylindrical and made of rubber, and an anti-skid layer is provided on the top surface of the extrusion head. When the rubber is deformed by external force, it has the ability to recover quickly and has good physical and mechanical properties and chemical stability, so that the extrusion head can fully contact the surface of the steel bar after being deformed by force to maintain its stability. At the same time, the provision of the anti-skid layer can increase the friction when contacting the steel bar and improve the anti-skid property.

[0010] Preferably, six fixing components are provided, with three fixing components respectively provided on the upper and lower sides of the inner wall of the mechanical sleeve and symmetrically distributed. By providing fixing components on both the upper and lower sides, the steel bars can be fully fixed to avoid loosening during vibration, thereby improving stability and safety.

[0011] Preferably, the clamping assembly includes a connecting ring, a fixed ring, a compression spring, a first clamping member and a second clamping member. The connecting ring is symmetrically installed on the upper and lower sides of the outer wall of the fixed ring. Compression springs are provided on the upper and lower sides of the inner wall of the fixed ring. The end of the compression spring away from the connecting ring is respectively connected to the first clamping member and the second clamping member. According to the thickness of the steel bar, the first clamping member and the second clamping member clamp and fix the steel bar exposed to the outside through the compression spring to avoid shaking during connection and improve the stability of the connection.

[0012] Preferably, four telescopic rods are provided, with two symmetrically distributed telescopic rods being provided on the left and right sides of the outer wall of the mechanical sleeve, and a fixing ring is sleeved on the outer wall of the telescopic rod through a connecting ring. The distance between the telescopic rods is adjusted according to the length of the steel bars exposed outside, and then the fixing ring is fixed on the steel bars to reduce the instability of the connection on both sides of the outside.

[0013] Preferably, a steel bar is tightly fitted between the first clamping member and the second clamping member, and one end of the steel bar facing the mechanical sleeve passes through the inner wall of the external tube and is arranged inside the mechanical sleeve. When the steel bar makes contact inside the mechanical sleeve, the outer sides of the steel bar are effectively clamped and fixed by the first clamping member and the second clamping member to avoid shaking and improve the stability of the connection.

[0014] Beneficial effects of the utility model:

[0015] 1. The setting of the fixing assembly can effectively fix the two steel bars when they are in contact inside the mechanical sleeve, prevent them from loosening during vibration, and improve safety. At the same time, according to the exposed steel bars, by adjusting the length of the telescopic rod, the clamping assembly can further clamp and fix them, avoid shaking on both sides of the outside, and improve the stability of the connection;

[0016] 2. The extrusion head is a cylindrical rubber material, and the top surface of the extrusion head is provided with an anti-skid layer. When the rubber is deformed by external force, it has the ability to recover quickly, and has good physical and mechanical properties and chemical stability, so that the extrusion head can fully contact with the surface of the steel bar after being deformed by force, and maintain its stability. At the same time, the setting of the anti-skid layer can increase the friction when contacting the steel bar and improve the anti-skid property;

[0017] 3. When two steel bars come into contact, the extrusion screw is rotated to move the extrusion plate toward the steel bar. The arc-shaped extrusion plate can fit the outer wall of the steel bar over a larger area, while allowing the extrusion head to fit closely to the steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The first three-dimensional structure schematic diagram of the straight thread high-strength steel bar mechanical connection sleeve of the utility model is shown;

[0019] Figure 2 The diagram shows the internal plan view of the straight thread high-strength steel bar mechanical connection sleeve of the utility model;

[0020] Figure 3 Shown is a partial cross-sectional schematic diagram of a straight thread high-strength steel bar mechanical connection sleeve of the utility model;

[0021] Figure 4 Shown is a schematic diagram of a straight thread high-strength steel bar mechanical connection sleeve fixing assembly of the utility model;

[0022] Figure 5 Shown is a schematic diagram of the straight thread high-strength steel bar mechanical connection sleeve clamping assembly of the utility model.

[0023] Explanation of the accompanying drawings: 1. Mechanical sleeve; 2. External tube; 3. Telescopic rod; 4. Extrusion screw; 5. Extrusion plate; 6. Extrusion head; 7. Connecting ring; 8. Fixed ring; 9. Compression spring; 10. First clamping member; 11. Second clamping member. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2The utility model provides an embodiment: a straight thread high-strength steel bar mechanical connection sleeve, including a mechanical sleeve 1, an external tube 2, a telescopic rod 3, a fixing assembly and a clamping assembly. The external tube 2 is installed on the left and right sides of the outer wall of the mechanical sleeve 1, and a fixing assembly is arranged inside the mechanical sleeve 1. The clamping assembly is sleeved on the outer wall of the telescopic rod 3, and one end of the telescopic rod 3 facing the fixing assembly is connected to the outer wall of the mechanical sleeve 1. Through the setting of the fixing assembly, when two steel bars are in contact inside the mechanical sleeve 1, the steel bars can be effectively fixed to prevent loosening during vibration and improve safety. At the same time, according to the steel bars exposed to the outside, by adjusting the length of the telescopic rod 3, the clamping assembly can further clamp and fix them to avoid shaking on both sides of the outside. , to improve the stability of the connection, four telescopic rods 3 are provided, and two symmetrically distributed telescopic rods 3 are provided on the left and right sides of the outer wall of the mechanical sleeve 1, and the fixing ring 8 is sleeved on the outer wall of the telescopic rod 3 through the connecting ring 7. According to the length of the steel bar exposed to the outside, the distance of the telescopic rod 3 is adjusted, and then the fixing ring 8 is fixed to the steel bar to reduce the instability of the connection on both sides of the outside. The steel bar is tightly fitted between the first clamping piece 10 and the second clamping piece 11, and the end of the steel bar facing the mechanical sleeve 1 passes through the inner wall of the external tube 2 and is arranged inside the mechanical sleeve 1. When the steel bar contacts inside the mechanical sleeve 1, the outer sides of the steel bar are effectively clamped and fixed by the first clamping piece 10 and the second clamping piece 11 to avoid shaking and improve the stability of the connection.

[0026] See also Figure 3-4 In this embodiment, the fixing assembly includes an extrusion screw 4, an extrusion plate 5 and an extrusion head 6. One end of the extrusion screw 4 passes through the outer wall of the mechanical sleeve 1 through an opening and is installed with an arc-shaped extrusion plate 5. An upwardly protruding extrusion head 6 is provided on the inner wall of the extrusion plate 5. When two steel bars are in contact, the extrusion screw 4 is rotated to move the extrusion plate 5 toward the steel bar. The arc-shaped extrusion plate 5 can make it fit on the outer wall of the steel bar with a larger area, and at the same time, the extrusion head 6 can also fit closely with the steel bar. The extrusion head 6 is a cylindrical shape made of rubber, and the top surface of the extrusion head 6 is provided with The anti-slip layer has the ability to quickly recover when the rubber is deformed by external force, and has good physical and mechanical properties and chemical stability, so that the extrusion head 6 can fully contact with the surface of the steel bar after being deformed by force to maintain its stability. At the same time, the setting of the anti-slip layer can increase the friction when contacting the steel bar and improve the anti-slip property. There are six fixing components, and three fixing components are respectively arranged on the upper and lower sides of the inner wall of the mechanical sleeve 1 and are symmetrically distributed. By arranging fixing components on the upper and lower sides, the steel bar can be fully fixed to avoid loosening during vibration, thereby improving stability and safety.

[0027] See also Figure 5In this embodiment, the clamping assembly includes a connecting ring 7, a fixing ring 8, a compression spring 9, a first clamping member 10 and a second clamping member 11. The connecting ring 7 is symmetrically installed on the upper and lower sides of the outer wall of the fixing ring 8. Compression springs 9 are arranged on the upper and lower sides of the inner wall of the fixing ring 8. The end of the compression spring 9 away from the connecting ring 7 is respectively connected to the first clamping member 10 and the second clamping member 11. According to the thickness of the steel bar, the first clamping member 10 and the second clamping member 11 clamp and fix the exposed steel bar through the compression spring 9 to avoid shaking during connection and improve the stability of the connection.

[0028] When working, firstly, the steel bars with two ends processed with threads are passed through the first clamping member 10 and the second clamping member 11 respectively, and inserted into the interior of the mechanical sleeve 1 through the external connection tube 2 and tightened and fixed;

[0029] Then, by rotating the extrusion screw 4, the extrusion plate 5 is moved toward the steel bar. The arc-shaped extrusion plate 5 can fit the outer wall of the steel bar in a larger area, and the extrusion head 6 can also fit closely with the steel bar, so that the extrusion head 6 can fully contact with the surface of the steel bar after being deformed by force, and maintain its stability. At the same time, by providing fixing components on both the upper and lower sides, the steel bar can be fully fixed to avoid loosening during vibration, thereby improving stability and safety.

[0030] Finally, according to the exposed steel bars, the telescopic rod 3 is adjusted to the required fixed position, so that the first clamping member 10 and the second clamping member 11 further clamp and fix the steel bars through the compression spring 9 to avoid shaking during connection and improve the stability of the connection.

[0031] Through the above steps, the setting of the fixing component can make it possible to effectively fix the two steel bars when they are in contact inside the mechanical sleeve 1, prevent them from loosening during vibration, and improve safety. At the same time, according to the steel bars exposed outside, by adjusting the length of the telescopic rod 3, the clamping component can further clamp and fix them to avoid shaking on both sides of the outside, thereby improving the stability of the connection.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A straight thread high-strength steel bar mechanical connection sleeve, comprising a mechanical sleeve (1); characterized in that: The mechanical sleeve (1) further comprises an external tube (2), a telescopic rod (3), a fixing assembly and a clamping assembly. The external tube (2) is mounted on the left and right sides of the outer wall of the mechanical sleeve (1). The mechanical sleeve (1) is provided with a fixing assembly inside. The clamping assembly is sleeved on the outer wall of the telescopic rod (3), and one end of the telescopic rod (3) facing the fixing assembly is connected to the outer wall of the mechanical sleeve (1).

2. The straight thread high-strength steel bar mechanical connection sleeve according to claim 1 is characterized in that: The fixing assembly comprises an extrusion screw (4), an extrusion plate (5) and an extrusion head (6); one end of the extrusion screw (4) passes through the outer wall of the mechanical sleeve (1) through an opening and is provided with an arc-shaped extrusion plate (5); and an upwardly protruding extrusion head (6) is provided on the inner wall of the extrusion plate (5).

3. The straight thread high-strength steel bar mechanical connection sleeve according to claim 2 is characterized in that: The extrusion head (6) is cylindrical and made of rubber material, and a non-slip layer is provided on the top surface of the extrusion head (6).

4. The straight thread high-strength steel bar mechanical connection sleeve according to claim 3 is characterized in that: Six fixing components are provided, and three fixing components are provided on the upper and lower sides of the inner wall of the mechanical sleeve (1) respectively and are symmetrically distributed.

5. The straight thread high-strength steel bar mechanical connection sleeve according to claim 4, characterized in that: The clamping assembly comprises a connecting ring (7), a fixing ring (8), a compression spring (9), a first clamping piece (10) and a second clamping piece (11); the connecting ring (7) is symmetrically mounted on the upper and lower sides of the outer wall of the fixing ring (8); the upper and lower sides of the inner wall of the fixing ring (8) are both provided with compression springs (9); one end of the compression spring (9) away from the connecting ring (7) is respectively connected to the first clamping piece (10) and the second clamping piece (11).

6. The straight thread high-strength steel bar mechanical connection sleeve according to claim 5, characterized in that: Four telescopic rods (3) are provided, and two symmetrically distributed telescopic rods (3) are provided on the left and right sides of the outer wall of the mechanical sleeve (1), and the fixing ring (8) is sleeved on the outer wall of the telescopic rod (3) through the connecting ring (7).

7. The straight thread high-strength steel bar mechanical connection sleeve according to claim 6, characterized in that: A steel bar is tightly fitted between the first clamping piece (10) and the second clamping piece (11), and one end of the steel bar facing the mechanical sleeve (1) passes through the inner wall of the external connecting tube (2) and is arranged inside the mechanical sleeve (1).

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