Middle crack resistant deformed steel bar

Abstract

The utility model relates to the technical field of deformed steel bars, and discloses middle crack resistant deformed steel bars which comprise deformed steel bars movably connected with limiting sleeves. A splicing structure is arranged on the limiting sleeve; the splicing structure comprises a connecting groove formed in the limiting sleeve, a first spring fixed to the limiting sleeve, a connecting block fixed to the first spring, a through hole formed in the limiting sleeve and a clamping groove formed in the limiting sleeve. The deformed steel bars can be connected to the left side and the right side of the other deformed steel bars through the splicing structures and can be stacked on the upper side and the lower side of the other deformed steel bars at the same time, the deformed steel bars can be stably stacked without displacement, then the spliced deformed steel bars can be bundled through the bundling grooves, restraining force is further provided, and the deformed steel bars can be rapidly fixed in the limiting sleeves through the clamping structures. And when the deformed steel bar needs to be used, the single deformed steel bar can be directly separated from the bundling pile, so that bundling, mounting and dismounting are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of threaded steel, in particular to a threaded steel that is resistant to middle cracks. Background Art

[0002] Rebar is the common name for hot-rolled ribbed steel bars, a small steel product that is widely used in the construction of houses, bridges, roads and other projects. When workers use rebar, there is a process of bundling and carrying it. Currently, there is a kind of rebar with manganese sulfide added, which can reduce the formation of iron sulfide in rebar and avoid the hot brittleness in the production of rebar, thereby effectively reducing the rebar with intermediate cracks.

[0003] In the prior art, for example, a threaded steel bar that is easy to bundle and butt joint is disclosed in publication number CN214884872U, which records: when the threaded steel bar that is easy to bundle and butt joint is butt jointed, the column on the lower surface of the threaded steel body is inserted into the adjacent threaded steel body, at this time, the lower surface of the column will first squeeze the block inside the adjacent threaded steel body, and finally the block will enter the slot under the action of the second spring. At this time, the threaded steel body and the adjacent threaded steel body are butt jointed, and multiple threaded steel bodies are butt jointed by this operation, which is convenient for the staff to bundle these threaded steel bodies.

[0004] In actual use, the linear docking method will cause the rebars to pile up in a straight line. The rebars arranged in a straight line have no locking structure constraints in their lateral direction, so the rebars can only be constrained by strapping. The pressure of the strapping is too high during transportation, which may cause rupture and create a safety hazard. When ensuring that the rebars are safely constrained, it is difficult to take out the rebars that need to be used, which may destroy the overall constraint of the strapping on the rebar. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The problem that the rebars are only constrained in a single direction during bundling and may be subject to forces in other directions during transportation, causing the bundle to break and posing a safety hazard, is solved; and the problem that the bundling of other rebars is affected when a single rebar is needed is solved.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a threaded steel bar resistant to middle cracks, comprising a threaded steel bar, a limited position sleeve movably connected to the threaded steel bar;

[0009] The limiting sleeve is provided with a splicing structure;

[0010] The splicing structure includes a connecting groove formed on the limiting sleeve, a first spring fixed on the limiting sleeve, a connecting block fixed to the first spring, a through hole formed in the limiting sleeve, and a clamping groove formed in the limiting sleeve.

[0011] Preferably, a limiting rod is movably connected in the limiting sleeve, and an adjusting rod is fixedly connected to one side of the limiting rod.

[0012] Preferably, a clamping block is fixedly connected to the outer side of the adjusting rod, and a clamping structure is arranged inside the limiting sleeve.

[0013] Preferably, the clamping structure includes a clamping groove opened on the limiting sleeve, a clamping rod movably connected to the limiting sleeve, a central button connected to the clamping rod, and a rotating block rotatably connected to the limiting sleeve.

[0014] Preferably, a limiting block is fixedly connected to the rotating block, a blocking block is fixedly connected to the rotating block, and a second spring is fixedly connected to one side of the clamping rod.

[0015] Preferably, a bundling groove is provided on the limiting sleeve, and an anti-slip sheet is installed on the limiting sleeve.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a threaded steel bar resistant to middle cracks, which has the following beneficial effects:

[0018] 1. The splicing structure can directly splice the rebar, so that the rebar can be connected to the left and right sides of the remaining rebars through the splicing structure and can also be piled up on the upper and lower sides of the remaining rebars, so that the rebars can be stably stacked without displacement, and then the spliced ​​rebars can be bundled through the bundling groove to further provide restraint;

[0019] 2. The clamping structure can quickly fix the threaded steel bar in the limiting sleeve, and can also directly remove a single threaded steel bar from the bundle when the threaded steel bar is needed, making it convenient for bundling installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the right side of the splicing structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the left side of the splicing structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of the clamping structure of the utility model;

[0024] Figure 5It is a schematic diagram of the internal structure of the clamping structure of the utility model.

[0025] In the figure: 1. threaded steel bar; 2. limit sleeve; 31. connecting groove; 32. first spring; 33. connecting block; 34. through hole; 35. clamping groove; 36. limit rod; 37. adjusting rod; 38. clamping block; 41. clamping groove; 42. clamping rod; 43. central button; 44. rotating block; 45. limit block; 46. blocking block; 47. second spring; 5. bundling groove; 6. anti-slip sheet. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1-3 , which is the first embodiment of the utility model, provides a threaded steel bar resistant to middle cracks, including a threaded steel bar 1, a limit sleeve 2 movably connected to the threaded steel bar 1, the limit sleeve 2 is a cubic block, and a circular groove is opened in the middle, and the groove can be entered by the threaded steel bar 1;

[0029] The limiting sleeve 2 is provided with a splicing structure;

[0030] The splicing structure includes a connecting groove 31 provided on the limiting sleeve 2, the connecting groove 31 is provided on both the left and right sides of the limiting sleeve 2, and a slot 35 and a through hole 34 are provided on the left side of the limiting sleeve 2, a first spring 32 fixed on the limiting sleeve 2, the first spring 32 is installed at the bottom of the connecting groove 31, and the direction is horizontal, a connecting block 33 fixed with the first spring 32, the connecting block 33 is slidably connected to the inside of the connecting groove 31 through the cooperation of the slider slot, a through hole 34 provided in the limiting sleeve 2, the through hole 34 passes through the connecting block 33, and when the first spring 32 is in the limit compression state, the through hole 34 is located in the middle of the connecting block 33, the through hole 34 is provided in the slot 35 in the limiting sleeve 2, the slot 35 needs to be used in conjunction with the block 38, and the block 38 can be blocked by the slot 35 after rotating in the slot 35, thereby playing a limiting function.

[0031] A limiting rod 36 is movably connected in the limiting sleeve 2 . The limiting rod 36 cooperates with the through hole 34 . The limiting rod 36 can be inserted into the through hole 34 . An adjusting rod 37 is fixedly connected to one side of the limiting rod 36 .

[0032] A clamping block 38 is fixedly connected to the outer side of the adjusting rod 37 , and a clamping structure is arranged inside the limiting sleeve 2 .

[0033] The first spring 32 will change from the ultimate compression state to the extended state, thereby pushing the connecting block 33 out of the connecting groove 31. At this time, the left side of the other limiting sleeve 2 is placed on the right side of the limiting sleeve 2, and the connecting block 33 will enter the connecting groove 31 of the other limiting sleeve 2, and the pulled out limiting rod 36 is placed in the connecting groove 31 where the connecting block 33 is now located, fixing the connecting block 33 in the other limiting sleeve 2. After the limiting rod 36 is placed, the adjusting rod 37 is then rotated to screw the blocking block 38 into the blocking part in the slot 35, thereby fixing the two limiting sleeves 2 with the fixing column limiting rod 36.

[0034] Example 2

[0035] Reference Figure 1-5 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: the clamping structure includes a clamping groove 41 opened on the limiting sleeve 2, the clamping groove 41 array is opened on the front side of the limiting sleeve 2, a clamping rod 42 movably connected to the limiting sleeve 2, the clamping rod 42 is fixed to the limiting sleeve 2 by a second spring 47 at the end, and the clamping rod 42 can slide in the clamping groove 41, a central button 43 connected to the clamping rod 42, the part of the clamping rod 42 extending out of the limiting sleeve 2 is fixed by the annular rod, and is fixed by the straight rod and the central button 43, and a rotating block 44 rotatably connected to the limiting sleeve 2, and the rotating block 44 is rotatably connected to the inside of the clamping groove 41 through an axis.

[0036] The limit block 45 is fixedly connected to the rotating block 44, and the limit block 45 and the groove of the card rod 42 are used in conjunction with each other. When the rotating block 44 rotates counterclockwise, the limit block 45 enters the groove of the card rod 42. At this time, the second spring 47 is in the ultimate tensile state, which can limit the rotation of the rotating block 44. A stop block 46 is fixedly connected to the rotating block 44. There is friction between the stop block 46 and the threaded steel 1. When the threaded steel 1 enters the limit sleeve 2, the stop block 46 will be moved, thereby driving the rotating block 44 to rotate clockwise, so that the threaded steel 1 can smoothly enter the limit sleeve 2. When the threaded steel 1 is displaced toward the outside of the limit sleeve 2, it will drive the stop block 46 to have a tendency to move in the opening direction of the limit sleeve 2, that is, the rotating block 44 rotates counterclockwise, and the limit block 45 and the card rod 42 cooperate to limit the rotation, thereby controlling the threaded steel 1 from being pulled out. A second spring 47 is fixedly connected to one side of the card rod 42.

[0037] The limiting sleeve 2 is provided with a bundling groove 5 for bundling the threaded steel bars 1. The limiting sleeve 2 is provided with an anti-skid sheet 6 for increasing the friction between the upper and lower limiting sleeves 2 when stacking the threaded steel bars 1, so as to keep the stacking stable.

[0038] During use, after the threaded steel bar 1 is placed in the limiting sleeve 2, the entry of the threaded steel bar 1 will move the blocking block 46 to make the rotating block 44 rotate clockwise, so that the limiting block 45 also rotates clockwise, so that the threaded steel bar 1 can smoothly enter the limiting sleeve 2. When the threaded steel bar 1 wants to pull out the limiting sleeve 2, it will touch the blocking block 46. Because of the friction between the blocking block 46 and the threaded steel bar 1, or the blocking block 46 contacts the threads on the threaded steel bar 1, the blocking block 46 will have a tendency to move in the opening direction of the limiting sleeve 2. This movement trend will drive the rotating block 44 to rotate counterclockwise, so that the limiting block 45 and the clamping rod 42 The groove of the screw threaded steel 1 is clamped so that the screw threaded steel 1 cannot be pulled out, thereby completing the locking of the screw threaded steel 1. When the screw threaded steel 1 needs to be pulled out, it is only necessary to press the central button 43. At this time, the clamping rod 42 will squeeze the second spring 47, and the clamping rod 42 moves toward the inside of the clamping groove 41, driving the limit block 45 to rotate clockwise, that is, the rotating block 44 and the blocking block 46 both rotate clockwise, thereby releasing the restriction between the blocking block 46 and the screw threaded steel 1, so that the screw threaded steel 1 can freely enter and exit the limit sleeve 2. Multiple limit sleeves 2 can be bound in a bundling manner. The bundling groove 5 is used to bundle the screw threaded steel 1 installed with the limit sleeve 2. When the screw threaded steel 1 is stacked, internal friction is provided to keep the stacking stable.

[0039] The remaining structures are the same as those of Example 1.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A threaded steel bar resistant to middle cracks, comprising a threaded steel bar (1), wherein a limit sleeve (2) is movably connected to the threaded steel bar (1); Features: The limiting sleeve (2) is provided with a splicing structure; The splicing structure comprises a connecting groove (31) provided on the limiting sleeve (2), a first spring (32) fixed on the limiting sleeve (2), a connecting block (33) fixed to the first spring (32), a through hole (34) provided in the limiting sleeve (2), and a clamping groove (35) provided in the limiting sleeve (2).

2. The middle crack resistant threaded steel bar according to claim 1, characterized in that: A limiting rod (36) is movably connected in the limiting sleeve (2), and an adjusting rod (37) is fixedly connected to one side of the limiting rod (36).

3. The middle crack resistant threaded steel bar according to claim 2, characterized in that: A clamping block (38) is fixedly connected to the outer side of the adjustment rod (37), and a clamping structure is arranged inside the limiting sleeve (2).

4. The middle crack resistant threaded steel bar according to claim 3, characterized in that: The clamping structure comprises a clamping groove (41) provided on the limiting sleeve (2), a clamping rod (42) movably connected to the limiting sleeve (2), a central button (43) connected to the clamping rod (42), and a rotating block (44) rotatably connected to the limiting sleeve (2).

5. The middle crack resistant threaded steel bar according to claim 4, characterized in that: The rotating block (44) is fixedly connected to a limiting block (45), the rotating block (44) is fixedly connected to a blocking block (46), and one side of the clamping rod (42) is fixedly connected to a second spring (47).

6. The middle crack resistant threaded steel bar according to claim 1, characterized in that: The limiting sleeve (2) is provided with a bundling groove (5), and the limiting sleeve (2) is provided with an anti-slip sheet (6).

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