Locking and connecting sleeve for threaded sleeve
Through the screw-extrusion connection method of the screw sleeve locking connection sleeve, the problem of inconvenience in construction in a narrow space is solved in the prior art, efficient steel bar connection is achieved, and the construction process is simplified.
Patent Information
- Application Number
- CN202421769714.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The existing extruded steel bar connection sleeves are inconvenient to construct in a construction environment with a small space, and extrusion space is required.
The screw sleeve is used to lock the connecting sleeve, and the internal and external threads of Kit 1 and Kit 2 are adapted to tighten and extrude the connection method of screwing and extrusion is achieved, reducing the requirements for construction space.
No additional extrusion space is required, which simplifies the construction process, improves construction efficiency and avoids thread damage caused by machining quality and transportation issues.
Smart Images
Figure CN222477953U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building construction, in particular to the technical field of a connecting sleeve for connecting steel bars. Background Art
[0002] Rebar connection sleeves, also known as rebar joints, are key components for connecting rebars. They are used to connect rebars and have internal threads corresponding to the thread heads. They are mainly used to reinforce concrete structures, improve the compressive performance, bearing capacity and overall stability of the structure. At the same time, they can also increase the flexibility of the structure and enhance its seismic performance, which is particularly important in areas prone to earthquakes.
[0003] Extruded steel bar connection sleeves in the prior art use a special hydraulic crimping pliers to squeeze the steel sleeve, causing the steel sleeve to undergo plastic deformation, and then tightly embed into the threads of the steel bar, thereby achieving a tight connection between the two steel bars. This connection method has the characteristics of stable connection performance, strong bearing capacity, and good seismic and shear resistance.
[0004] However, this connection method also has certain disadvantages. For example, the connection is tightened by axial extrusion or radial extrusion, which requires that extrusion space be reserved at both ends of the extruded steel bar connection sleeve to ensure that the hydraulic crimping pliers can smoothly insert the two ends of the extruded steel bar connection sleeve for extrusion. When encountering a construction environment with relatively narrow space, the above-mentioned extruded steel bar connection sleeve is very inconvenient to construct. Utility Model Content
[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a threaded sleeve locking connection sleeve with a simple structure, improved construction efficiency and convenient on-site installation. The technical solution of the utility model is as follows:
[0006] As a first aspect, the utility model provides a threaded sleeve locking connection sleeve, the threaded sleeve locking connection sleeve comprising a first set, a second set and a locking member. Among them:
[0007] The first sleeve is an axially penetrating cylindrical component, and its penetrating space includes a conical shape and a cylindrical shape arranged coaxially, wherein the small diameter end of the conical shape is located at one end of the first sleeve, and the cylindrical end is located at the other end of the first sleeve;
[0008] The second set is an axially penetrating cylindrical component, and a gasket layer is provided at the outer periphery of the middle part of the second set, and the penetrating space thereof is cylindrical;
[0009] The cylindrical interior of the first set is provided with an internal thread, and the exterior of the second set is provided with an external thread, and the internal thread and the external thread can be adapted and tightened;
[0010] The locking member is clamped by the first and second sets of sleeves in the cone of the first set of sleeves.
[0011] In combination with the above solutions, in any one of the solutions, preferably the following one is adopted: the diameter of the cylindrical shape of the kit 1 is larger than the major diameter of the cone.
[0012] In combination with the above schemes, in any of the schemes, one is preferably as follows: the locking member is an axially penetrating cone, the penetrating space is a coaxially arranged cone, and the small diameter and large diameter of the locking member are both between the small diameter and large diameter of the cone of the kit.
[0013] In combination with the above schemes, in any of the schemes, one is preferably as follows: the locking member is composed of a plurality of trapezoidal clips placed around a circular base, and gaps are provided between adjacent trapezoidal clips, and the outer diameter of the circular base is smaller than the cylindrical diameter of the set one and larger than the conical large diameter of the set one.
[0014] In combination with the above solutions, in any one of the solutions, one is preferably as follows: the interior of the locking member is provided with an internal protrusion, such as teeth, threads, a snap ring, etc.
[0015] In combination with the above schemes, one of the schemes is preferably as follows: the screw sleeve locking connection sleeve includes 2 sets of kits 1, 2 locking pieces and 1 set of kits 2, and the two ends of the set of kits 2 are both provided with external threads on the outside, and the internal threads and the external threads can be adapted and tightened.
[0016] In combination with the above solutions, in any one of the solutions, the following one is preferred: any two symmetrical sides of the outer circumference of the kit one are set as mutually symmetrical planes.
[0017] In combination with the above solutions, in any one of the solutions, one is preferably as follows: the outer periphery of the kit 1 is set as an equilateral hexagon.
[0018] The utility model has the following beneficial effects:
[0019] The utility model does not need to process the end of the steel bar into a straight thread through a rolling process, thus avoiding the damage of the thread due to processing quality and transportation problems, and preventing the smooth sleeve connection.
[0020] In addition, the utility model greatly reduces the requirement for construction space when the extrusion tool is used for axial or radial extrusion through the screw extrusion method, which is convenient for flexible operation in various construction spaces and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0022] Figure 1 It is a structural schematic diagram of a threaded sleeve locking connection sleeve of the utility model;
[0023] Figure 2 It is a structural schematic diagram of a set 1 of a threaded sleeve locking connection sleeve of the utility model;
[0024] Figure 3 It is a structural schematic diagram of a second set of threaded sleeve locking connection sleeves of the utility model;
[0025] Figure 4 It is a structural schematic diagram of a locking member of a threaded sleeve locking connection sleeve of the utility model;
[0026] Figure 5 It is a structural schematic diagram of the internal thread of the locking member of the utility model.
[0027] Notes on the accompanying drawings: 1-Kit 1, 2-Kit 2, 3-Locking piece. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In the description of this specific embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0030] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0031] In the description of this specific embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this specific embodiment can be understood according to specific circumstances.
[0032] Example 1: Figure 1 As shown, the utility model provides a screw sleeve locking connection sleeve, which includes two sets of sets 1, one set of sets 2 and two locking pieces 3. Set 2 2 is located in the middle, and the two sets of sets 1 are respectively sleeved on both ends of the set 2 2 by screwing, and the two locking pieces 3 are respectively clamped in the gap between the set 1 and the set 2, and tightly contact the steel bars passing through.
[0033] like Figure 2 As shown, the kit 1 is an axially penetrating cylindrical component, and its penetration space is composed of a coaxially arranged cone and two cylinders of different sizes. The large diameter end of the cone is connected to one end of the large cylinder, and the small diameter end of the cone is connected to one end of the small cylinder. The other end of the small cylinder is connected to one end of the kit 1 and the other end of the large cylinder is located at the other end of the kit 1. The diameter of the large cylinder of the kit 1 is larger than the large diameter of the cone, so that the kit 2 is screwed into the inside of the large cylinder. The small diameter of the cone and the diameter of the small cylinder are just or slightly larger than the diameter of the steel bar, so that the steel bar can pass through.
[0034] like Figure 3 As shown, the second set 2 is an axially penetrating cylindrical component, and a gasket layer is provided at the middle periphery of the second set 2, and its penetrating space is cylindrical, and the diameter of the cylinder is just or slightly larger than the diameter of the steel bar to allow the steel bar to pass through.
[0035] The cylindrical interior of the kit 1 is provided with an internal thread, and the exterior of the kit 2 is provided with an external thread, and the internal thread and the external thread can be adapted and tightened.
[0036] like Figure 4As shown, the locking member 3 is an axially penetrating cone, and the locking member 3 is composed of a plurality of trapezoidal clips placed around a circular base, and a gap is provided between adjacent trapezoidal clips, so that the clips can be tightened toward the axis during the extrusion process. The outer diameter of the circular base is smaller than the cylindrical diameter of the kit 1 and larger than the large diameter of the cone of the kit 1, so that the locking member 3 is not completely squeezed into the cone of the kit 1. The small diameter and large diameter of the locking member 3 are both between the small diameter and large diameter of the cone of the kit 1, so that the locking member 3 is clamped by the kit 1 and the kit 2 and in the cone of the kit 1.
[0037] During construction, the ends of the two sections of steel bars are respectively inserted into a set 1 and a locking piece 3 in sequence, and then the two ends of the two sections of steel bars are respectively inserted from the left and right sides of the set 2 to the middle of the set 2. Then the left and right sets 1 are screwed, and the left and right sets 1 are pressed against the gasket layer of the set 2 through the internal and external threads that adapt to each other. In this process, the set 1 and the set 2 are constantly approaching, and then the tapered part of the locking piece 3 is squeezed into the tapered part of the set 1, and in the process of further approaching, the locking piece 3 is tightly in contact with the steel bar therein, so as to achieve the effect of wedging and locking. Compared with the existing extruded steel bar connection sleeve that is extruded and connected in the axial or radial direction by an extrusion device, this structure does not need to reserve too much additional axial or radial operating space, and only needs to reserve the angle at which the set 1 can be rotated using a wrench. The size of the rotation angle will only affect the number of screwing times, and there will be no other requirements for the reserved space.
[0038] In Example 2, the outer periphery of the kit 1 is set as an equilateral hexagon. This design is similar to the existing bolt structure. In order to facilitate the construction, the wrench and the kit 1 can be firmly grasped to prevent slipping during the wrench. Similarly, the outer periphery of the gasket layer of the kit 2 can also be set as an equilateral hexagon for the wrench to grasp. That is, the kit 2 can also be rotated by screwing the gasket layer, and then the left and right sides of the kit 1 can be pulled closer and clamped through the internal and external threads.
[0039] Embodiment 3, as Figure 5 As shown, the trapezoidal clip is provided with multiple layers of inner protruding threads, thereby enhancing the grip between the locking member 3 and the steel bar therein, further preventing the steel bar from sliding. The inner protrusions may also be teeth, snap rings, etc., to enhance the grip between the locking member 3 and the steel bar therein.
[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A threaded sleeve locking connection sleeve, characterized in that: The threaded sleeve locking connection sleeve comprises a set of components 1 (1), a set of components 2 (2) and a locking member (3); wherein: The sleeve one (1) is an axially penetrating cylindrical component, and its penetrating space includes a conical shape and a cylindrical shape arranged coaxially, wherein the small diameter end of the conical shape is located at one end of the sleeve one (1), and the cylindrical end is located at the other end of the sleeve one (1); The second set (2) is an axially penetrating cylindrical component, and a gasket layer is provided at the outer periphery of the middle part of the second set (2), and the penetration space thereof is cylindrical; The cylindrical interior of the kit one (1) is provided with an internal thread, and the exterior of the kit two (2) is provided with an external thread, and the internal thread and the external thread can be adapted to be screwed together; The locking member (3) is clamped by the first set (1) and the second set (2) in the cone of the first set (1).
2. A threaded sleeve locking connection sleeve according to claim 1, characterized in that: The diameter of the cylindrical shape of kit one (1) is larger than the major diameter of the conical shape.
3. A threaded sleeve locking connection sleeve according to claim 2, characterized in that: The locking member (3) is an axially penetrating cone, the penetration space of which is a coaxially arranged cone, and the small diameter and large diameter of the locking member (3) are both between the small diameter and large diameter of the cone of the kit 1 (1).
4. A threaded sleeve locking connection sleeve according to claim 3, characterized in that: The locking member (3) is composed of a plurality of trapezoidal clips placed around a circular base, and gaps are provided between adjacent trapezoidal clips. The outer diameter of the circular base is smaller than the cylindrical diameter of the set 1 (1) and larger than the conical major diameter of the set 1 (1).
5. A threaded sleeve locking connection sleeve according to claim 3, characterized in that: An inner protrusion is arranged inside the locking member (3).
6. A threaded sleeve locking connection sleeve according to any one of claims 1 to 5, characterized in that: The threaded sleeve locking connection sleeve comprises two sets of first sets (1), two locking pieces (3) and one set of second sets (2). Both ends of the set of second sets (2) are provided with external threads on the outside, and the internal threads and the external threads can be adapted to be screwed together.
7. A threaded sleeve locking connection sleeve according to claim 6, characterized in that: Any two symmetrical sides of the outer circumference of the kit 1 (1) are arranged as mutually symmetrical planes.
8. A threaded sleeve locking connection sleeve according to claim 7, characterized in that: The outer periphery of the kit one (1) is configured as an equilateral hexagon.