Novel hot-rolled ribbed steel bar

Abstract

The utility model belongs to the technical field of hot-rolled ribbed steel bars, and particularly relates to a novel hot-rolled ribbed steel bar which comprises a hot-rolled ribbed steel bar body, a sleeve is movably mounted at the top of the hot-rolled ribbed steel bar body, a screw is fixedly connected to the bottom of the hot-rolled ribbed steel bar body, and threads corresponding to the screw are arranged on the inner wall of the sleeve. A locking assembly is mounted between the sleeve and the bottom of the hot-rolled ribbed steel bar main body; the locking assembly comprises a ratchet wheel and a pawl, the ratchet wheel is fixedly connected between the locking assembly and the screw rod, and the pawl corresponding to the ratchet wheel is movably installed in the sleeve. By arranging the screw rod and the sleeve, connection between two reinforcing steel bars is facilitated, construction efficiency and connection strength are improved, meanwhile, automatic locking between the sleeve and the ratchet wheel is achieved through the ratchet wheel, the pawl and other components, construction efficiency and connection stability are further improved, and safety of a building is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-rolled ribbed steel bars, in particular to a novel hot-rolled ribbed steel bar. Background Art

[0002] Rebar, as an important building material, plays a vital role in construction projects. Hot-rolled ribbed steel bars are widely used in the construction industry due to their excellent mechanical properties and strong bond with concrete. The ribbed structure on their surface effectively bonds with concrete, sharing the loads borne by the building structure and ensuring its stability and safety.

[0003] Existing hot-rolled ribbed steel bars often need to be extended during use. For example, in large-scale construction projects, due to structural design requirements, the standard length of the bars may not meet the actual construction needs. In such cases, multiple sections of steel need to be connected to extend the length. The connected steel bars can better adapt to the different building structural requirements and improve the overall strength and stability of the building.

[0004] Currently, the main methods for extending rebar length include welding and tying. Welding requires specialized welding equipment and technicians, and welding quality is affected by various factors, such as welding process and environmental conditions. Tying, on the other hand, offers relatively low strength and may not meet requirements in some critical structural locations. Summary of the Invention

[0005] The purpose of the utility model is to provide a new type of hot-rolled ribbed steel bar, which facilitates the connection between two steel bars by arranging a screw and a sleeve, thereby improving construction efficiency and connection strength. At the same time, automatic locking between the sleeve and the ratchet is achieved by utilizing components such as a ratchet and a pawl, thereby further improving construction efficiency and connection stability and ensuring the safety of the building.

[0006] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: providing a new type of hot-rolled ribbed steel bar, comprising a hot-rolled ribbed steel bar body, a sleeve movably mounted on the top of the hot-rolled ribbed steel bar body, a screw fixedly connected to the bottom of the hot-rolled ribbed steel bar body, an inner wall of the sleeve having threads corresponding to the screw, and a locking assembly mounted between the sleeve and the bottom of the hot-rolled ribbed steel bar body;

[0007] The locking assembly includes a ratchet and a pawl. The ratchet is fixedly connected between the locking assembly and the screw rod, and a pawl corresponding to the ratchet is movably installed inside the sleeve.

[0008] Furthermore, a mounting groove is provided on the top of the hot-rolled ribbed steel bar body, and a mounting ring is fixedly connected to the inner wall of the sleeve. There are two mounting rings, and a roller is movably installed between the two mounting rings. There are multiple rollers distributed in a ring shape, and the mounting ring and the roller are both located inside the mounting groove, and the roller is in contact with the inner wall of the mounting groove.

[0009] Furthermore, a movable groove is provided inside the sleeve, a mounting shaft is fixedly connected inside the movable groove, a movable ear plate is fixedly connected to the pawl, and the movable ear plate is mounted on the mounting shaft.

[0010] Furthermore, a spring is fixedly installed between the pawl and the movable slot.

[0011] Furthermore, an anti-slip groove is fixedly connected to the outer wall of the sleeve, and there are multiple anti-slip grooves, which are distributed in a ring shape.

[0012] Furthermore, the outer wall of the hot-rolled ribbed steel bar body is fixedly connected with a transverse rib, and the number of the transverse ribs is multiple.

[0013] Furthermore, the outer wall of the hot-rolled ribbed steel bar body is fixedly connected with longitudinal ribs, and the longitudinal ribs are symmetrically distributed on both sides of the outer wall of the hot-rolled ribbed steel bar body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model comprises a steel bar body, a sleeve, and a screw. First, align the screw at the bottom of one steel bar with the threads in the sleeve at the top of the other steel bar. Then, by rotating the sleeve, the screw is gradually screwed into the sleeve to connect the two steel bars. This connection method is simple to operate, requiring no specialized equipment or technicians, and greatly improves construction efficiency. Furthermore, the sleeve and screw offer a high connection strength, meeting the structural requirements for steel bar connections and ensuring building safety.

[0016] The utility model is provided with a screw, a ratchet, an installation shaft, a pawl, a movable ear plate and a spring. In the process of screwing one steel bar into the sleeve of another steel bar, the ratchet rotates together with the screw, and the pawl swings flexibly under the action of the movable ear plate and the installation shaft. When the screw is screwed into a certain position, the pawl is clamped into the tooth groove of the ratchet under the action of the spring, thereby realizing automatic locking between the sleeve and the ratchet to prevent the screw from rotating in the opposite direction and falling out. This automatic locking function does not require additional operation, is convenient and quick, and further improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is an exploded view of the cross-sectional three-dimensional structure of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 It is an enlarged three-dimensional structural diagram of the self-locking component in the present utility model;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0023] In the figure: 1. Hot-rolled ribbed steel bar body; 101. Transverse rib; 102. Longitudinal rib; 2. Sleeve; 201. Anti-slip groove; 3. Screw; 4. Thread; 5. Mounting groove; 6. Mounting ring; 7. Roller; 8. Locking assembly; 801. Ratchet; 802. Movable groove; 803. Mounting shaft; 804. Pawl; 805. Movable ear plate; 806. Spring. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] Reference Figure 1-5 The present invention provides a novel hot-rolled ribbed steel bar according to an embodiment of the present invention. The novel hot-rolled ribbed steel bar comprises a main body 1, a sleeve 2 movably mounted on the top of the main body 1, a screw 3 fixedly connected to the bottom of the main body 1, a thread 4 corresponding to the screw 3 formed on the inner wall of the sleeve 2, and a locking assembly 8 mounted between the sleeve 2 and the bottom of the main body 1. The locking assembly 8 comprises a ratchet 801 and a pawl 804. The ratchet 801 is fixedly mounted between the locking assembly 8 and the screw 3, and a pawl 804 corresponding to the ratchet 801 is movably mounted inside the sleeve 2.

[0029] When two steel bars need to be connected, the screw 3 of one steel bar is screwed into the thread 4 of the sleeve 2 of the other steel bar through the bottom screw 3. During the screwing-in process, the ratchet 801 rotates with the screw 3. When the screw 3 is screwed into a certain position, the pawl 804 is stuck in the tooth groove of the ratchet 801, realizing automatic locking between the sleeve 2 and the ratchet 801, preventing the screw 3 from rotating in the opposite direction and falling out.

[0030] A mounting groove 5 is provided at the top of the hot-rolled ribbed steel bar body 1, and a mounting ring 6 is fixedly connected to the inner wall of the sleeve 2. There are two mounting rings 6, and a roller 7 is movably installed between the two mounting rings 6. There are multiple rollers 7 distributed in a ring shape. The mounting ring 6 and the roller 7 are both located inside the mounting groove 5, and the roller 7 is in contact with the inner wall of the mounting groove 5.

[0031] During the process of connecting two steel bars, when the sleeve 2 rotates relative to the steel bar body 1, the roller 7 rolls in the mounting groove 5, reducing the friction between the sleeve 2 and the steel bar body 1, reducing the friction force during the connection process, making the connection operation smoother, reducing wear, and extending the service life of the connection components.

[0032] A movable groove 802 is formed inside the sleeve 2 , and a mounting shaft 803 is fixedly connected to the inside of the movable groove 802 . A movable lug 805 is fixedly connected to the pawl 804 , and the movable lug 805 is mounted on the mounting shaft 803 .

[0033] When the ratchet 801 rotates, the pawl 804 is able to flexibly swing within the movable slot 802 under the action of the movable lug 805 and the mounting shaft 803. When the screw 3 rotates in the forward direction, the pawl 804 is pushed outward by the ratchet 801. When the screw 3 stops rotating, the pawl 804 can be locked into the tooth groove of the ratchet 801, ensuring that the pawl 804 can accurately cooperate with the ratchet 801, realizing the automatic locking function between the sleeve 2 and the ratchet 801, while also improving the flexibility and reliability of the locking assembly 8.

[0034] A spring 806 is fixedly installed between the pawl 804 and the movable slot 802 .

[0035] The spring 806 is always in a compressed state, providing downward pressure on the pawl 804, so that the pawl 804 can be tightly engaged with the tooth groove of the ratchet 801. When the lock needs to be released, the pawl 804 can be pushed outward by external force, causing the spring 806 to be further compressed, thereby disengaging the pawl 804 from the ratchet 801, thereby improving the reliability of the lock and facilitating the operation when the lock needs to be released.

[0036] The outer wall of the sleeve 2 is fixedly connected with an anti-skid groove 201 . There are multiple anti-skid grooves 201 , and the multiple anti-skid grooves 201 are distributed in a ring shape.

[0037] When connecting two steel bars, you can hold the outer wall of the sleeve 2 and rotate it. The anti-slip groove 201 increases the friction of the outer wall of the sleeve 2, preventing your hands from slipping, making the operation convenient and improving the safety of the operation, making the connection process more stable.

[0038] The outer wall of the hot-rolled ribbed steel bar body 1 is fixedly connected with a transverse rib 101 , and there are multiple transverse ribs 101 .

[0039] The transverse ribs 101 can enhance the bonding force between the steel bars and the concrete. When the concrete is poured around the steel bars, the transverse ribs 101 are embedded in the concrete, thereby improving the anchoring performance of the steel bars in the concrete, enhancing the bonding strength between the steel bars and the concrete, and enhancing the stability of the building structure.

[0040] The outer wall of the hot-rolled ribbed steel bar body 1 is fixedly connected with longitudinal ribs 102 , and two longitudinal ribs 102 are symmetrically distributed on both sides of the outer wall of the hot-rolled ribbed steel bar body 1 .

[0041] The longitudinal ribs 102 play a guiding role during the production, transportation and installation of the steel bars. They also enhance the overall stiffness of the steel bars, facilitate the laying and positioning of the steel bars, and improve the efficiency of the steel bars and the quality of the building structure.

[0042] Working principle: When two steel bars need to be connected, first align the screw 3 at the bottom of one steel bar with the thread 4 in the sleeve 2 at the top of the other steel bar, and then rotate the sleeve 2 to gradually screw the screw 3 into the sleeve 2.

[0043] During the screwing-in process, the ratchet 801 rotates with the screw 3, and the pawl 804 swings flexibly under the action of the movable ear plate 805 and the mounting shaft 803. When the screw 3 is screwed in to a certain position, the pawl 804 is engaged with the tooth groove of the ratchet 801 under the action of the spring 806, realizing automatic locking between the sleeve 2 and the ratchet 801, preventing the screw 3 from rotating in the opposite direction and falling out.

[0044] At the same time, during the connection process, the roller 7 rolls in the installation groove 5, reducing the friction between the sleeve 2 and the steel bar body 1. The anti-slip groove 201 increases the friction of the outer wall of the sleeve 2, making operation easier. The transverse ribs 101 and longitudinal ribs 102 respectively enhance the bonding strength and overall stiffness between the steel bars and concrete, thereby improving the stability and quality of the building structure.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of hot-rolled ribbed steel bar, comprising a hot-rolled ribbed steel bar body (1), characterized in that: A sleeve (2) is movably mounted on the top of the hot-rolled ribbed steel bar body (1), a screw (3) is fixedly connected to the bottom of the hot-rolled ribbed steel bar body (1), a thread (4) corresponding to the screw (3) is formed on the inner wall of the sleeve (2), and a locking assembly (8) is mounted between the sleeve (2) and the bottom of the hot-rolled ribbed steel bar body (1); The locking assembly (8) comprises a ratchet (801) and a pawl (804); the ratchet (801) is fixedly connected between the locking assembly (8) and the screw rod (3); and a pawl (804) corresponding to the ratchet (801) is movably installed inside the sleeve (2).

2. A new type of hot-rolled ribbed steel bar according to claim 1, characterized in that: A mounting groove (5) is provided on the top of the hot-rolled ribbed steel bar body (1), and a mounting ring (6) is fixedly connected to the inner wall of the sleeve (2). There are two mounting rings (6), and a roller (7) is movably installed between the two mounting rings (6). There are multiple rollers (7) distributed in an annular shape. The mounting ring (6) and the roller (7) are both located inside the mounting groove (5), and the roller (7) is in contact with the inner wall of the mounting groove (5).

3. The novel hot-rolled ribbed steel bar according to claim 1, characterized in that: A movable groove (802) is provided inside the sleeve (2), a mounting shaft (803) is fixedly connected inside the movable groove (802), a movable ear plate (805) is fixedly connected to the pawl (804), and the movable ear plate (805) is mounted on the mounting shaft (803).

4. A new type of hot-rolled ribbed steel bar according to claim 3, characterized in that: A spring (806) is fixedly installed between the pawl (804) and the movable groove (802).

5. The novel hot-rolled ribbed steel bar according to claim 1, characterized in that: The outer wall of the sleeve (2) is fixedly connected with an anti-slip groove (201), and there are a plurality of anti-slip grooves (201), which are distributed in a ring shape.

6. The novel hot-rolled ribbed steel bar according to claim 1, characterized in that: The outer wall of the hot-rolled ribbed steel bar body (1) is fixedly connected with a transverse rib (101), and the number of the transverse ribs (101) is multiple.

7. The novel hot-rolled ribbed steel bar according to claim 1, characterized in that: The outer wall of the hot-rolled ribbed steel bar body (1) is fixedly connected with longitudinal ribs (102), and the longitudinal ribs (102) are symmetrically distributed on both sides of the outer wall of the hot-rolled ribbed steel bar body (1).

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