A steel bar connection device and a method of using the same

Abstract

The present invention belongs to the field of civil engineering technology, and specifically relates to a steel bar connection device and a method of using the same, which is used to connect a first steel bar and a second steel bar, and includes an eccentric adjustment device, a steel bar connection piece, and an eccentric adjustment device installation device, wherein the eccentric adjustment device installation device is arranged on at least one of the first steel bar and the second steel bar, and an eccentric adjustment device is installed on the eccentric adjustment device installation device, wherein a sliding groove is arranged on the eccentric adjustment device, wherein the sliding groove is perpendicular to the extension direction of the steel bar, and the steel bar connection piece is parallel to the extension direction of the steel bar, wherein one end of the steel bar connection piece is clamped on the sliding groove, and the other end is connected to another steel bar; wherein the steel bar connection piece slides in the sliding groove while being parallel to the steel bar, so that the eccentric adjustment device rotates. The present invention effectively improves the tolerance range, meets the reasonable deviation caused by production, manufacturing, construction and installation, and the eccentric angle and eccentric spacing of the eccentric error are adjustable.

Description

Technical Field

[0001] The invention belongs to the technical field of civil engineering, and in particular relates to a steel bar connecting device and a use method thereof. Background Art

[0002] Under the background of the country's vigorous development of prefabricated buildings, the status of prefabricated concrete components in prefabricated buildings is also constantly improving. However, due to the complex construction site environment, insufficient precision in component manufacturing, and the technical proficiency of on-site construction personnel, the product quality and installation progress of prefabricated components are difficult to control, which in turn leads to an increase in the overall cost of prefabricated buildings.

[0003] The existing connection methods of prefabricated components mainly have the following problems: 1. Traditional wet connection, the post-cast concrete area is large, the on-site pouring amount is large, the node area has many complex anchor steel bars, and there are difficulties in concrete pouring, which seriously affects the overall structural quality and safety of prefabricated buildings; 2. Sleeve grouting connection, there are problems such as incomplete grouting, difficulty in steel bar alignment, grouting hole sealing and inability to grout, and high cost; 3. Dry connection such as bolts has weak connection strength and requires high component manufacturing accuracy, construction site installation accuracy, and technical level of construction personnel.

[0004] In order to solve the above problems, the utility model patent with the existing patent application number 201821914415.X introduces a steel bar connection device with a double eccentric structure, which is composed of an eccentric inner and outer thread nut, an eccentric sleeve, a bolt, and an outer sleeve, and is connected to the threaded steel bar. The eccentricity of the eccentric inner and outer thread nut is equal to that of the eccentric sleeve; the bolt is tightened with the eccentric sleeve and pressed against the eccentric inner and outer thread nut, and the outer sleeve is tightened with the eccentric inner and outer thread nut and the cylindrical head of the bolt; by adjusting the eccentric azimuth of the eccentric inner and outer thread nut and the eccentric sleeve, the misaligned threaded steel bar can be reliably connected. This patent still has the following problems: (1) Its eccentric spacing is fixed and cannot be adjusted, and it cannot meet the requirements of different eccentric spacings; (2) The eccentric angle is fixed and cannot adapt to eccentricities of different angles; (3) There are many threaded connections, which affects the installation efficiency of the connection device. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present invention proposes a new steel bar connecting device and a method of using the same. By providing a movable eccentric adjustment device, the steel bars at both ends can be connected at any eccentric angle and eccentric distance, which greatly improves the practicality.

[0006] The specific technical solutions of the present invention are as follows:

[0007] A steel bar connecting device, used for connecting a first steel bar and a second steel bar, comprising an eccentric adjustment device, a steel bar connecting piece and an eccentric adjustment device mounting device, wherein the eccentric adjustment device mounting device is arranged on at least one of the first steel bar and the second steel bar, the eccentric adjustment device mounting device is mounted with an eccentric adjustment device, the eccentric adjustment device is provided with a sliding groove, the sliding groove is perpendicular to the extension direction of the steel bar, the steel bar connecting piece is parallel to the extension direction of the steel bar, one end of the steel bar connecting piece is clamped on the sliding groove, and the other end is connected to another steel bar;

[0008] Wherein, the steel bar connector slides in the sliding groove while remaining parallel to the steel bar, so that the eccentric adjustment device rotates.

[0009] Among them, when the eccentric adjustment device installation device is set on one of the first steel bar and the second steel bar, the steel bar connecting device also includes a sleeve, one end of which is threadedly connected to the steel bar without the eccentric adjustment device installation device, and the other end of which is threadedly connected to one end of the steel bar connecting piece.

[0010] Among them, when the first steel bar and the second steel bar are both provided with eccentric adjustment device installation devices, one end of the steel bar connector is clamped with the sliding groove of one of the eccentric adjustment devices, and the other end is clamped with the sliding groove of the other eccentric adjustment device.

[0011] Wherein, the eccentric adjustment device installation device includes a steel bar end installation device and an eccentric adjustment device fixing device.

[0012] Among them, the steel bar end mounting device is a reducing sleeve, and the eccentric adjustment device fixing device is an externally threaded inner cylinder. The end of the reducing sleeve with a smaller inner diameter is connected to the steel bar, and the externally threaded inner cylinder is screwed into the reducing sleeve from the end of the reducing sleeve with a larger inner diameter, thereby restricting the eccentric adjustment device in the reducing sleeve.

[0013] Among them, the steel bar end mounting device is an externally threaded inner cylinder, and the eccentric adjustment device fixing device is an internally threaded outer cylinder. One end of the externally threaded inner cylinder is connected to the steel bar, and the other end is screwed into one end of the internally threaded outer cylinder. The eccentric adjustment device is confined in the internally threaded outer cylinder.

[0014] Wherein, the eccentric adjustment device is a circular gasket provided with a sliding groove.

[0015] Among them, the eccentric adjustment device includes a transition connection part and an extension part connected to it, the eccentric adjustment device mounting device is a cylinder, one end of the cylinder is connected to the steel bar, and the other end of the cylinder is clamped with a transition connection part, the transition connection part can rotate axially in the cylinder, the extension part is arranged on the outside of the cylinder, and the sliding groove is arranged on the extension part.

[0016] Wherein, the steel bar connector is a bolt.

[0017] Wherein, a clamping portion is also arranged on the screw rod of the bolt.

[0018] A method for using a steel bar connection device comprises the following steps:

[0019] (1) The first steel bar is connected to the eccentric adjustment device installation device, and the second steel bar is connected to the sleeve.

[0020] (2) Combine the steel bar connector and the eccentric adjustment device so that one end of the steel bar connector is engaged with the sliding groove.

[0021] (3) placing the eccentric adjustment device and the steel bar connector head in the eccentric adjustment device installation device, and confining the eccentric adjustment device in the eccentric adjustment device installation device,

[0022] (4) Adjust the position of the steel bar connector and the sliding groove so that the sleeve is aligned with the steel bar connector.

[0023] (5) Connect the sleeve to the steel bar connector.

[0024] (6) Pour concrete at the connection points in the above steps.

[0025] A method for using a steel bar connection device comprises the following steps:

[0026] (1) Connect the first steel bar and the second steel bar to the eccentric adjustment device installation device respectively.

[0027] (2) One end of the steel bar connector is clamped with the sliding groove of one eccentric adjustment device, and the other end is clamped with the sliding groove of another eccentric adjustment device.

[0028] (3) Adjust the positions of the steel bar connector and the sliding groove so that the eccentric adjustment devices and the steel bar connectors at both ends can be placed in the eccentric adjustment device installation devices on both sides respectively, and the eccentric adjustment device is confined in the eccentric adjustment device installation device.

[0029] (4) Pour concrete at the connection points in the above steps.

[0030] Beneficial Effects

[0031] By providing the steel bar connection device of the present application, the connection method between precast concrete components is effectively simplified, the pouring amount of concrete in the post-casting section is reduced, and the work efficiency of construction and installation is improved; the tolerance range is increased to meet the reasonable deviations caused by production, manufacturing, construction and installation, and the eccentricity angle and eccentricity spacing of the eccentricity error are adjustable; the steps of installing and connecting the connectors are simplified, and the construction efficiency is improved; it can be used for the connection between precast concrete components in the field of civil engineering, and can also be used for steel bar connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of one embodiment of the present invention

[0033] Figure 2 A schematic diagram of another embodiment of the present invention

[0034] Figure 3 for Figure 1 Exploded view of the embodiment

[0035] Figure 4 A schematic diagram of another embodiment of the present invention

[0036] Figure 5 A schematic diagram of another embodiment of the present invention

[0037] Among them, 1 is the first steel bar, 2 is the second steel bar, 3 is the eccentric adjustment device installation device, 3-1 is the steel bar end installation device, 3-2 is the eccentric adjustment device fixing device, 5 is the eccentric adjustment device, 5-1 is the sliding groove, 5-2 is the transition connection part, 5-3 is the extension part, 6 is the sleeve, and 7 is the steel bar connecting piece. DETAILED DESCRIPTION

[0038] like Figure 1 As shown, the first steel bar 1 and the second steel bar 2 are fixed in position, the first steel bar 1 and the second steel bar 2 are parallel to each other but not coaxial, the distance between the first steel bar 1 and the second steel bar 2 is the eccentric distance, and the relative angle between the first steel bar 1 and the second steel bar 2 is the eccentric angle. If the steel bar connection device mentioned in the prior art is used, when there are multiple groups of steel bars with different eccentricities, this steel bar connection device can no longer connect the first steel bar 1 and the second steel bar 2.

[0039] In order to solve this problem, the steel bar connecting device of the present invention is introduced below.

[0040] like Figure 1 , Figure 3As shown, the steel bar connection device of the present invention comprises an eccentric adjustment device 5, a steel bar connection piece 7 and an eccentric adjustment device installation device 3, wherein the eccentric adjustment device installation device 3 is arranged on at least one of the first steel bar 1 and the second steel bar 2, and the eccentric adjustment device 5 is installed on the eccentric adjustment device installation device 3, and the eccentric adjustment device 5 is provided with a sliding groove 5-1, which is long and perpendicular to the extension direction of the steel bar, and the steel bar connection piece 7 is parallel to the extension direction of the steel bar, one end of which is clamped on the sliding groove 5-1, and the other end is connected to another steel bar. Wherein, the steel bar connection piece 7 slides in the sliding groove 5-1 while keeping parallel to the steel bar, so that the eccentric adjustment device 5 rotates.

[0041] Compared with the existing design that cannot cope with the changes in eccentric spacing and eccentric angles, the present application sets a rotatable eccentric adjustment device 5 so that the steel bar connector 7 can move on the circular surface formed by the rotation of the sliding groove 5-1, which results in the adjustment range of the first steel bar 1 relative to the second steel bar 2 being the circular surface formed by the rotation of the sliding groove 5-1, which can cope with various eccentric angles and eccentric spacings, and has higher ease of use and better adaptability.

[0042] It should be noted that the steel bar connector 7 may be a bolt, and may be a single-head bolt or a double-head bolt as required. Figure 3 As shown, when the steel bar connector 7 is a bolt, a clamping portion is also provided on the screw rod thereof for fixing and twisting with a wrench.

[0043] It is worth noting that when the eccentric adjustment device installation device 3 is arranged on one of the first steel bar 1 and the second steel bar 2, as Figure 1 As shown, at this time, the eccentric adjustment device installation device 3 is only installed on the second steel bar 2. The steel bar connection device described in the present application should also include a sleeve 6. The first steel bar 1 and one end of the bolt connected thereto are provided with an external thread. The sleeve 6 is provided with an internal thread matching the aforementioned external thread. The first steel bar 1 and one end of the bolt are respectively threadedly connected to the sleeve 6 from both ends of the sleeve 6. By adjusting the depth of the steel bar and the steel bar connector 7 screwed into the sleeve 6, it can be ensured that the bolt tightens and connects the first steel bar 1 and the second steel bar 2.

[0044] Or as Figure 2 As shown, at this time, the first steel bar 1 and the second steel bar 2 are both provided with an eccentric adjustment device installation device 3, and each eccentric adjustment device installation device 3 is provided with an eccentric adjustment device 5, and the two ends of the stud bolt are respectively engaged with the sliding grooves 5-1 of the two eccentric adjustment devices 5. In this arrangement, since two eccentric adjustment devices 5 are used at the same time, the variation range of the eccentric spacing can be twice that of a single eccentric adjustment device, thereby improving the ability to cope with various eccentricity degree steel bar connection scenarios.

[0045] Obviously, there are many ways to implement the eccentric adjustment device installation device 3 and the eccentric adjustment device 5. Figure 1 , Figure 3 As shown, the eccentric adjustment device installation device 3 includes a steel bar end installation device 3-1 and an eccentric adjustment device fixing device 3-2. The steel bar end installation device 3-1 is a reducing sleeve, and the eccentric adjustment device fixing device 3-2 is an external threaded inner cylinder, that is, its thread is arranged on the outside of the inner cylinder, and the end of the reducing sleeve with a smaller inner diameter is connected to the steel bar, and the external threaded inner cylinder is screwed into the reducing sleeve to restrict the eccentric adjustment device 5 inside the reducing sleeve. Alternatively, as Figure 3-2 As shown, at this time, the steel bar end mounting device 3-1 is an externally threaded inner cylinder, and the eccentric adjustment device fixing device 3-2 is an internally threaded outer cylinder. One end of the externally threaded inner cylinder is connected to the steel bar, and the other end thereof is screwed into the internally threaded outer cylinder, thereby restricting the eccentric adjustment device 5 inside the externally threaded inner cylinder.

[0046] With such arrangement, by adjusting the position of the steel bar connector 7, the eccentric adjustment device 5 can be rotated to change the angle of the sliding groove 5-1, and change the spacing and angle between the steel bar connector 7 and the steel bar, so that the steel bar connecting device of the present application can connect steel bars with different eccentric angles and eccentric spacings.

[0047] In the above implementation, the eccentric adjustment device 5 is a circular gasket provided with a sliding groove 5 - 1 .

[0048] Obviously, there are other implementation forms of the eccentric adjustment device installation device 3 and the eccentric adjustment device 5. Figure 5 As shown, at this time, the eccentric adjustment device 5 also includes a transition connection part 5-2 and an extension part 5-3 connected thereto, the eccentric adjustment device installation device 3 is a cylinder, one end of the cylinder is connected to the steel bar, and the other end is clamped with a transition connection part 5-2, the transition connection part 5-2 can rotate axially in the cylinder, the extension part 5-3 is arranged on the outside of the cylinder, the sliding groove 5-1 is arranged on the extension part 5-3, one end of the steel bar connector 7 is clamped in the sliding groove 5-1, and can slide along the sliding groove 5-1. In this way, it is also possible to adjust the position of the steel bar connector 7 by rotating the eccentric adjustment device 5, change the spacing and angle between the steel bar connector 7 and the steel bar, and thus connect two steel bars.

[0049] The following describes the method for using the steel bar connection device of the present application. When the steel bar connection device is installed on only one of the steel bars, the method includes the following steps:

[0050] 1. The first steel bar 1 and the second steel bar 2 are connected to the reducing sleeve and the sleeve 6 respectively.

[0051] 2. Assemble the bolt and the circular gasket so that the bolt head is engaged with the sliding groove 5-1.

[0052] 3. Place the circular gasket and bolt head in the reducing sleeve, and use the external threaded inner tube to confine the circular gasket in the reducing sleeve.

[0053] 4. Adjust the position of the bolt and the sliding groove 5-1 so that the sleeve 6 is aligned with the bolt.

[0054] 5. Turn the clamping part in the middle of the bolt to connect the sleeve 6 with the bolt.

[0055] 6. Pour concrete at the connection points in the above steps.

[0056] At this point, the first steel bar 1 is connected to the second steel bar 2, overcoming the problem of eccentric angle and eccentric spacing.

[0057] Alternatively, when the steel bar connecting device is installed on two steel bars, the following steps are included:

[0058] 1. Connect the first steel bar 1 and the second steel bar 2 to the reducing sleeve respectively.

[0059] 2. Assemble the stud bolt, round gasket and external thread inner tube so that the bolt head is engaged with the sliding groove 5-1.

[0060] 3. Adjust the position of the bolt and the sliding groove 5-1 so that the circular gaskets and the bolt heads at both ends can be placed in the reducing sleeves on both sides respectively, and screw the external threaded inner cylinder into the reducing sleeve so that the circular gasket is confined in the reducing sleeve;

[0061] 4. Pour concrete at the above connection locations.

[0062] By providing the steel bar connection device of the present application, the connection method between precast concrete components is effectively simplified, the pouring amount of concrete in the post-casting section is reduced, and the work efficiency of construction and installation is improved; the tolerance range is increased to meet the reasonable deviations caused by production, manufacturing, construction and installation, and the eccentricity angle and eccentricity spacing of the eccentricity error are adjustable; the steps of installing and connecting the connectors are simplified, and the construction efficiency is improved; it can be used for the connection between precast concrete components in the field of civil engineering, and can also be used for steel bar connection.

Claims

1. A steel bar connection device, used for connecting a first steel bar (1) and a second steel bar (2), characterized in that: The invention comprises an eccentric adjustment device (5), a steel bar connecting piece (7) and an eccentric adjustment device mounting device (3), wherein the eccentric adjustment device mounting device (3) is arranged on at least one of a first steel bar (1) and a second steel bar (2), an eccentric adjustment device (5) is mounted on the eccentric adjustment device mounting device (3), and a sliding groove (5-1) is arranged on the eccentric adjustment device (5), wherein the sliding groove (5-1) is perpendicular to the extension direction of the steel bar, and the steel bar connecting piece (7) is parallel to the extension direction of the steel bar, one end of which is clamped on the sliding groove (5-1) and the other end is connected to another steel bar; Wherein, the steel bar connector (7) slides in the sliding groove (5-1) while remaining parallel to the steel bar, so that the eccentric adjustment device (5) rotates; The eccentric adjustment device installation device (3) comprises a steel bar end installation device (3-1) and an eccentric adjustment device fixing device (3-2); The steel bar end mounting device (3-1) is a reducing sleeve, and the eccentric adjustment device fixing device (3-2) is an externally threaded inner cylinder. The end of the reducing sleeve with a smaller inner diameter is connected to the steel bar, and the externally threaded inner cylinder is screwed into the reducing sleeve from the end of the reducing sleeve with a larger inner diameter, thereby confining the eccentric adjustment device (5) in the reducing sleeve.

2. The steel bar connection device according to claim 1, characterized in that: When the eccentric adjustment device installation device (3) is arranged on one of the first steel bar (1) and the second steel bar (2), the steel bar connecting device further comprises a sleeve (6), one end of which is threadedly connected to the steel bar on which the eccentric adjustment device installation device (3) is not arranged, and the other end of which is threadedly connected to one end of the steel bar connecting piece (7).

3. The steel bar connection device according to claim 1, characterized in that: When the first steel bar (1) and the second steel bar (2) are both provided with an eccentric adjustment device installation device (3), one end of the steel bar connector (7) is engaged with the sliding groove (5-1) of one of the eccentric adjustment devices (5), and the other end is engaged with the sliding groove (5-1) of the other eccentric adjustment device (5).

4. The steel bar connection device according to claim 1, characterized in that: The eccentric adjustment device (5) is a circular gasket provided with a sliding groove (5-1).

5. A steel bar connection device, used for connecting a first steel bar (1) and a second steel bar (2), characterized in that: The invention comprises an eccentric adjustment device (5), a steel bar connecting piece (7) and an eccentric adjustment device mounting device (3), wherein the eccentric adjustment device mounting device (3) is arranged on at least one of a first steel bar (1) and a second steel bar (2), an eccentric adjustment device (5) is mounted on the eccentric adjustment device mounting device (3), and a sliding groove (5-1) is arranged on the eccentric adjustment device (5), wherein the sliding groove (5-1) is perpendicular to the extension direction of the steel bar, and the steel bar connecting piece (7) is parallel to the extension direction of the steel bar, one end of which is clamped on the sliding groove (5-1) and the other end is connected to another steel bar; Wherein, the steel bar connector (7) slides in the sliding groove (5-1) while remaining parallel to the steel bar, so that the eccentric adjustment device (5) rotates; The eccentric adjustment device installation device (3) comprises a steel bar end installation device (3-1) and an eccentric adjustment device fixing device (3-2); The steel bar end mounting device (3-1) is an externally threaded inner cylinder, and the eccentric adjustment device fixing device (3-2) is an internally threaded outer cylinder. One end of the externally threaded inner cylinder is connected to the steel bar, and the other end is screwed into one end of the internally threaded outer cylinder. The eccentric adjustment device (5) is confined in the internally threaded outer cylinder.

6. The steel bar connection device according to claim 1 or 5, characterized in that: The steel bar connector (7) is a bolt.

7. The steel bar connection device according to claim 6, characterized in that: The screw rod of the bolt is also provided with a clamping portion.

8. A method for using the steel bar connection device according to claim 2, characterized in that: The following steps are involved: (1), the first steel bar (1) is connected to the eccentric adjustment device installation device (3), the second steel bar (2) is connected to the sleeve (6), (2) Assemble the steel bar connector (7) and the eccentric adjustment device (5) so that one end of the steel bar connector (7) is engaged with the sliding groove (5-1). (3) placing the eccentric adjustment device (5) and the steel bar connecting member (7) in the eccentric adjustment device installation device (3), and confining the eccentric adjustment device (5) in the eccentric adjustment device installation device (3); (4) adjusting the positions of the steel bar connector (7) and the sliding groove (5-1) so that the sleeve (6) is aligned with the steel bar connector (7). (5) Connect the sleeve (6) to the steel bar connector (7). (6) Pour concrete at the connection points in the above steps.

9. A method for using the steel bar connection device according to claim 3, characterized in that: The following steps are involved: (1), connecting the first steel bar (1) and the second steel bar (2) to the eccentric adjustment device installation device (3), respectively; (2) One end of the steel bar connector (7) is clamped with the sliding groove (5-1) of one eccentric adjustment device (5), and the other end is clamped with the sliding groove (5-1) of another eccentric adjustment device (5). (3) adjusting the positions of the steel bar connector (7) and the sliding groove (5-1) so that the eccentric adjustment devices (5) and the steel bar connector (7) at both ends can be respectively placed in the eccentric adjustment device mounting devices (3) at both sides, and the eccentric adjustment device (5) is restricted in the eccentric adjustment device mounting device (3), (4) Pour concrete at the connection points in the above steps.

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