CN203500205U

CN203500205U - Expanding junction

Info

Publication number: CN203500205U
Application number: CN201320588679.1U
Authority: CN
Inventors: 劳光汉; 罗红武
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-03-26
Anticipated expiration: 2023-09-24

Abstract

The utility model discloses an expanding junction, particularly an expanding junction which is used for the connection of steel bars and belongs to the technical field of metal connecting member. The expanding junction comprises a screwing sleeve, pressing sleeves and a pressing assembly; the inner walls of two ends of the screwing sleeve are provided with internal threads opposite to each other, the pressing assembly is arranged at the middle section position in the screwing sleeve, the pressing sleeves are arranged on both ends inside the screwing sleeve, and the pressing sleeves are provided with external threads matched with the internal threads of the screwing sleeve, so as to form a structure that the screwing sleeve can drive the pressing sleeves to move oppositely and can provide a radial extrusion force for the pressing assembly. The expanding junction is ingenious in concept and reasonable in design, can apply forces from two ends by using a hydraulic wrench, achieves the firmness degree which cannot be achieved by independent manual hooping, and has advantages of convenient construction, high connecting efficiency and good reliability.

Description

A kind of swelling knot

Technical field

The utility model relates to a kind of swelling knot, and particularly a kind of swelling knot connecting for reinforcing bar, belongs to metal connecting piece technical field.

Background technique

In engineering construction, usually need the wire rod of steel pipe or reinforcing bar one class to connect, traditional employing welding manner connects, but be limited to execution conditions and environment, often do not possess the condition of welding, or the operability of welding is low, and also there is the shortcoming that join strength is inadequate in its welding manner interface, in order to address the above problem, also some jointings have been there are successively, mostly adopt lasso and be aided with and be threaded, its shortcoming is need to be by two machining screw of connecting material, complicated operation, and processing cost is high.

Summary of the invention

Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of swelling knot, the metal wire rod that can be practically applicable to steel pipe or reinforcing bar one class connects, have advantages of easy to operate, joint efficiency is high, connect after good reliability.

The technical solution adopted in the utility model is as follows:

A kind of swelling knot, comprises and screws cover, clamping sleeve and hold down assembly; The described inwall that screws cover two ends is provided with reverse each other internal thread, described holding down assembly is arranged at the middle section position screwing in cover, described clamping sleeve is arranged at the two ends that screw in cover, and clamping sleeve is provided with place and screws the outside thread that cover place internal thread matches, composition screws cover and can drive clamping sleeve move toward one another, and the structure of lateral extrusion power is provided for holding down assembly.

Owing to having adopted technique scheme, described swelling knot can be aided with Hydraulic wrench in project installation process, the both ends of the surface of clamping sleeve are clamped, by common wrench, screw cover again, the reverse internal thread each other arranging because it is inner, make clamping sleeve to move to the middle part that screws cover simultaneously, be arranged at screw cover in holding down assembly of neutral position under the extruding that screws cover, produce lateral extrusion power, by lateral extrusion power realize to wire rod connection and banding, after screwing cover and twisting and put in place, by Hydraulic wrench, to clamping sleeve, further exert pressure again, and continue to screw cover until two wires materials firmly connect as one.Swelling knot of the present utility model, bindiny mechanism than traditional mechanism, its advantage is to be aided with Hydraulic wrench and realizes more fastening locking, the independent employing manual operations that has overcome traditional bindiny mechanism causes the unsteady defect of locking effect, has simultaneously also overcome the deficiency that traditional welding is limited to execution conditions and environment.

Swelling knot of the present utility model, further, described holding down assembly comprises setting sleeve and conical surface cover, described setting sleeve is arranged at the sagittal plane screwing in cover, conical surface cover is arranged between clamping sleeve and setting sleeve, described clamping sleeve is provided with the conical surface inner room conical surface I coordinating, and described setting sleeve and conical surface inner room are provided with the conical surface II of cooperation.

Owing to having adopted said structure, setting sleeve can be used in the degree of depth of laying of positioning steel tube or reinforcing bar, setting sleeve, conical surface cover and screw two cooperation conical surfaces of inner room: i.e. conical surface I, conical surface II, can under the extruding that screws cover, to the metal material that will connect, carry out compression radially easily, improve joint efficiency, guarantee the reliability connecting.

Swelling of the present utility model, knot further, is reserved with space between the end face of described conical surface cover and setting sleeve.

Owing to having adopted said structure, existence due to space between conical surface cover and setting sleeve both ends of the surface, conical surface cover can be moved to a certain extent vertically, for radial compaction provides certain buffering and can operating space, further guarantee in conical surface cover radial compaction smoothly and efficiency.

Swelling of the present utility model, the tilt angle of described conical surface I and conical surface II is unequal.

Owing to having adopted said structure, the tilt angle of conical surface I and conical surface II, this structure makes to screw in the process that is enclosed within compression utilizes the stressed radial compaction to journey promotion conical surface cover, guarantees the smooth and efficiency of connection procedure.

Swelling of the present utility model, described conical surface cover adopts plasticity deformation steel to make.

Owing to having adopted said structure, the conical surface that plasticity deformation steel are made is enclosed within the process of pressurized can also there is certain plasticity deformation, particularly, in the situation that connecting material and being reinforcing bar, utilizes the twisted steel of rebar surface, can more firmly wire rod be held tightly, guarantee the reliability connecting.

Swelling of the present utility model, described in screw cover and be also provided with the spanner section of controlling.

Owing to having adopted said structure, the spanner section of controlling can convenient wrench be controlled and is turned and screws cover, improves joint efficiency.

Swelling of the present utility model, further, the exterior edge face of described clamping sleeve is also provided with pretension breach.

Owing to having adopted said structure, described pretension breach can be used supporting workpiece putting into the connection material initial stage, blocks pretension breach and carries out pretension, improves joint efficiency.

In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: described expanding structure is thought ingenious, reasonable in design, can be by Hydraulic wrench from the two ends application of force, reach the separately artificial inaccessiable firm degree of stirrup, swelling knot of the present utility model, the described conical surface design that adopts the two-sided not isogonism of conical surface cover, and be reserved with certain gap between conical surface cover and setting sleeve, can guarantee efficiency of construction and quality of connection in installing, what simultaneously described conical surface cover adopted is plasticity deformation steel, can after pressing, there is certain plastic deformation, guarantee that conical surface cover is tight with the Surface Contact of link, improve the reliability connecting.

Accompanying drawing explanation

Fig. 1 is cross-sectional view of the present utility model;

Fig. 2 is that the utility model Fig. 1 installs the schematic diagram connecting after material;

Fig. 3 is outside schematic diagram of the present utility model;

Fig. 4 is the left side schematic diagram of Fig. 3 of the present utility model.

Mark in figure: 1-screws cover, 2-clamping sleeve, 3-setting sleeve, 4-conical surface cover, 5-conical surface I, 6-conical surface II, 7-space, the 8-spanner section of controlling, 9-pretension breach, 10-reinforcing bar.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Embodiment

Swelling of the present utility model knot, its structural representation as shown in Figure 1, Figure 3 and Figure 4 shown in, described swelling knot comprises and screws cover 1, clamping sleeve 2 and hold down assembly; The described stage casing that screws cover 1 outside is provided with the spanner section of controlling 8, the inwall at two ends is provided with reverse each other internal thread, described holding down assembly is arranged at the middle section position screwing in cover 1, described clamping sleeve 2 is arranged at the two ends that screw in cover 1, and clamping sleeve 2 is provided with place and screws the outside thread that cover 1 place's internal thread matches, and the exterior edge face of clamping sleeve 2 is also provided with pretension breach 9; Described holding down assembly comprises setting sleeve 3 and conical surface cover 4, described setting sleeve 3 is " work " type structure, be arranged at the sagittal plane screwing in cover 1, conical surface cover 4 adopts plasticity deformation steel to make, be arranged between clamping sleeve 2 and setting sleeve 3, described clamping sleeve 2 is provided with 4, the conical surface cover conical surface I 5 coordinating, described setting

sleeve

3 and 4 conical surface II 6 that are provided with cooperation of conical surface cover, form and to screw cover 1 and can drive clamping sleeve 2 move toward one another, and provide the structure of lateral extrusion power for conical surface cover 4.

Swelling knot of the present utility model, for guaranteeing the smooth banding effect of conical surface cover 4, the tilt angle of described conical surface I 5 and conical surface II 6 is unequal, and is reserved with space 7 between the end face of described conical surface cover 4 and setting sleeve 3.

Swelling of the present utility model is tied and is connected steel annexation schematic diagram as shown in Figure 2, and the reinforcing bar 10 that connect is arranged on respectively the both sides of swelling knot and locates with position cover 3.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a swelling knot, is characterized in that: comprise and screw cover (1), clamping sleeve (2) and hold down assembly; The described inwall that screws cover (1) two ends is provided with reverse each other internal thread, described holding down assembly is arranged at the middle section position screwing in cover (1), described clamping sleeve (2) is arranged at the two ends that screw in cover (1), and clamping sleeve (2) is provided with and screws cover (1) with place and locate the outside thread that internal thread matches, composition screws cover (1) and can drive clamping sleeve (2) move toward one another, and the structure of lateral extrusion power is provided for holding down assembly.

2. swelling as claimed in claim 1 is tied, it is characterized in that: described in hold down assembly and comprise setting sleeve (3) and conical surface cover (4), described setting sleeve (3) is arranged at the sagittal plane screwing in cover (1), conical surface cover (4) is arranged between clamping sleeve (2) and setting sleeve (3), between described clamping sleeve (2) and conical surface cover (4), be provided with the conical surface I (5) coordinating, between described setting sleeve (3) and conical surface cover (4), be provided with the conical surface II (6) of cooperation.

3. swelling knot as claimed in claim 2, is characterized in that: between the end face of described conical surface cover (4) and setting sleeve (3), be reserved with space (7).

4. swelling knot as claimed in claim 2, is characterized in that: the tilt angle of described conical surface I (5) and conical surface II (6) is unequal.

5. swelling knot as claimed in claim 2, is characterized in that: described conical surface cover (4) adopts plasticity deformation steel to make.

6. the swelling as described in claim 1 to 5 any one knot, is characterized in that: described in screw cover (1) and be also provided with the spanner section of controlling (8).

7. the knot of the swelling as described in claim 1 to 5 any one, is characterized in that: the exterior edge face of described clamping sleeve (2) is also provided with pretension breach (9).