Quick screwing device for straight thread connection sleeve in pile foundation reinforcement engineering

Abstract

The utility model discloses a pile foundation reinforcement engineering straight thread connection sleeve fast screwing device which comprises an electric wrench, the electric wrench comprises a handheld part, a gear box and a switch, a screwing assembly is arranged at the front end of the gear box, and the screwing assembly comprises a screwing sleeve, a straight thread reinforcement, an adjusting rod and a limiting rod. The straight thread steel bar is fixed to the outer side close to the end of the tightening sleeve, the adjusting rod is arranged at the rear end of the tightening sleeve, and the auxiliary assembly comprises a supporting plate, a fixing cylinder, a telescopic joint, a clamping block and a handle. The three straight thread steel bars are welded to the tightening sleeve to form the gripper, the tightening sleeve is arranged on the outer side of the straight thread connecting sleeve in a sleeving mode, the gripper is driven by the electric wrench to rotate rapidly, the straight thread sleeve is tightened and fixed, the auxiliary handheld handle is arranged on the rear side of the electric wrench, and operation is conducted with two hands. The fatigue feeling of single-hand operation is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to but is not limited to the technical field, and specifically relates to a quick tightening device for a straight thread connection sleeve of a pile foundation reinforcement engineering. Background Art

[0002] In road and bridge projects, pile foundation reinforcement projects are mostly processed centrally in reinforcement processing plants, with prefabricated skeletons in sections. When the main reinforcement bars are connected mechanically, straight threaded sleeves need to be pre-tightened at the connecting ends of the reinforcement skeletons. When the reinforcement skeletons are transported to the site, they are directly hoisted and installed.

[0003] In road and bridge projects, pile foundation reinforcement projects are mostly processed in a centralized manner in reinforcement processing plants, and the skeleton is prefabricated in sections. When the main reinforcement adopts a mechanical connection process, the straight thread sleeve needs to be completely pre-tightened at the connection end of the reinforcement skeleton. Usually, the straight thread is tightened manually or with a wrench, which has low work efficiency, consumes the physical strength of the tightening personnel, and is prone to fatigue. Therefore, a quick tightening device for the straight thread connection sleeve of the foundation reinforcement project is designed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a quick tightening device for a straight thread connection sleeve of a pile foundation reinforcement engineering.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a quick tightening device for a straight thread connection sleeve of a pile foundation steel bar engineering, comprising an electric wrench, the electric wrench comprising a handheld part, a gear box and a switch, a tightening assembly is arranged at the front end of the gear box, the tightening assembly comprises a tightening sleeve, a straight threaded steel bar, an adjusting rod and a limiting rod, the straight threaded steel bar is fixed on the outside close to the end of the tightening sleeve, the adjusting rod is arranged at the rear end of the tightening sleeve, and the limiting rod is arranged between the tightening sleeve and the adjusting rod;

[0007] An auxiliary component is arranged at the rear end of the gear box, and the auxiliary component includes a support plate, a fixed cylinder, a telescopic joint, a clamping block and a handle. The fixed cylinder is fixed on the front side of the support plate, the telescopic joint is arranged inside the fixed cylinder, the clamping block is arranged at the outer end of the telescopic joint, and the handle is arranged at the bottom of the fixed cylinder.

[0008] As a preferred technical solution of the utility model, the rear end of the adjusting rod is transmission-connected to the output end of the gear box, the adjusting rod is slidingly connected to the tightening sleeve, and connection holes adapted to the limit rod are provided near the rear end of the tightening sleeve and the outer side of the adjusting rod.

[0009] As a preferred technical solution of the utility model, the limiting rod passes through the tightening sleeve and the adjusting rod through the connecting hole, and is threadably matched with the tightening sleeve and the adjusting rod.

[0010] As a preferred technical solution of the utility model, at least three straight threaded steel bars are fixed to the outer side of the tightening sleeve, and the straight threaded steel bars are arc-shaped.

[0011] As a preferred technical solution of the utility model, the outer side of the support plate is wrapped with rubber, a plurality of telescopic joints are arranged inside the fixed cylinder, the plurality of telescopic joints are slidably connected to each other, a clamping block is fixed to the innermost end of the telescopic joint, a clamping slot adapted to the clamping block is provided at the rear end of the gear box, and the telescopic joint is clamped to the rear end of the gear box through the clamping block and the clamping slot.

[0012] As a preferred technical solution of the utility model, a plurality of limit blocks are equidistantly fixed on the upper surface of the telescopic joint, and limit holes adapted to the limit blocks are provided near the front end of the fixed tube and the telescopic joint, and the limit blocks are made of rubber.

[0013] As a preferred technical solution of the utility model, a telescopic rod is arranged between the handle and the fixed tube, and the two ends of the telescopic rod are respectively fixedly connected to the fixed tube and the handle, and a plurality of gaskets are fixed on the outer surface of the handle, and the gaskets are made of rubber.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model arranges three straight threaded steel bars and welds them on the tightening sleeve to form a gripper, and the tightening sleeve is sleeved on the outside of the straight thread connecting sleeve. The gripper is driven by an electric wrench to rotate quickly to complete the tightening work of the straight thread sleeve, and an auxiliary hand-held handle is arranged on the rear side of the electric wrench, which can be operated with both hands, thereby reducing fatigue of one-hand operation and improving work efficiency, and solving the problem that the straight thread sleeve needs to be completely pre-tightened on the connecting end of the steel bar skeleton, and the straight thread is tightened manually or with a wrench, which has low work efficiency, consumes physical strength of the tightening personnel, and is prone to fatigue.

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the local structure of the tightening component;

[0021] Figure 3 It is a partial structural diagram of the auxiliary component;

[0022] In the figure: 100, electric wrench; 101, hand-held part; 102, gear box; 103, switch; 200, tightening assembly; 201, tightening sleeve; 202, straight threaded steel bar; 203, adjusting rod; 204, limiting rod; 205, connecting hole; 300, auxiliary assembly; 301, support plate; 302, fixing cylinder; 303, telescopic joint; 304, clamping block; 305, limiting block; 306, limiting hole; 307, telescopic rod; 308, handle; 309, gasket. DETAILED DESCRIPTION

[0023] like Figure 1-3 As shown, the utility model provides a quick tightening device for a straight thread connection sleeve of a pile foundation steel bar engineering, comprising an electric wrench 100, the electric wrench 100 comprising a handheld portion 101, a gear box 102 and a switch 103, a tightening assembly 200 is arranged at the front end of the gear box 102, the tightening assembly 200 comprises a tightening sleeve 201, a straight threaded steel bar 202, an adjusting rod 203 and a limiting rod 204, the straight threaded steel bar 202 is fixed to the outside near the end of the tightening sleeve 201, the adjusting rod 203 is arranged at the rear end of the tightening sleeve 201, and the limiting rod 204 is arranged between the tightening sleeve 201 and the adjusting rod 203;

[0024] Auxiliary component 300, the auxiliary component 300 is arranged at the rear end of the gear box 102, the auxiliary component 300 includes a support plate 301, a fixed cylinder 302, a telescopic joint 303, a block 304 and a handle 308, the fixed cylinder 302 is fixed to the front side of the support plate 301, the telescopic joint 303 is arranged inside the fixed cylinder 302, the block 304 is arranged at the outer end of the telescopic joint 303, and the handle 308 is arranged at the bottom of the fixed cylinder 302.

[0025] Furthermore, in this embodiment, the rear end of the adjusting rod 203 is transmission-connected to the output end of the gear box 102, so that the electric wrench 100 can control the rotation of the tightening sleeve 201 at the front end of the adjusting rod 203, and the adjusting rod 203 is slidingly connected to the tightening sleeve 201. The depth of the straight threaded connection sleeve penetrating into the tightening sleeve 201 is adjusted by the position of the adjusting rod 203 in the tightening sleeve 201, and connection holes 205 adapted to the limit rod 204 are provided near the rear end of the tightening sleeve 201 and the outer side of the adjusting rod 203.

[0026] In this embodiment, the limiting rod 204 passes through the tightening sleeve 201 and the adjusting rod 203 through the connecting hole 205 and is threadedly matched with the tightening sleeve 201 and the adjusting rod 203 . The limiting rod 204 limits the position of the adjusting rod 203 in the tightening sleeve 201 .

[0027] In this embodiment, at least three straight threaded steel bars 202 are fixed to the outside of the tightening sleeve 201. The straight threaded steel bars 202 are arc-shaped, and a grip is formed on the tightening sleeve 201 by the three straight threaded steel bars 202. The bending curvature of the straight threaded steel bars 202 is adjusted according to the outer diameter of the straight threaded connection sleeve.

[0028] In this embodiment, the outer side of the support plate 301 is wrapped with rubber, and a plurality of telescopic joints 303 are arranged inside the fixed cylinder 302. The plurality of telescopic joints 303 are slidably connected to each other. A clamping block 304 is fixed to the end of the innermost telescopic joint 303. A clamping slot adapted to the clamping block 304 is provided at the rear end of the gear box 102. The telescopic joint 303 is clamped with the rear end of the gear box 102 through the clamping block 304 and the clamping slot. The adjustment of the use position of the support plate 301 is achieved through the telescopic joint 303, and the auxiliary component 300 is installed on the rear side of the gear box 102 of the electric wrench 100 through the clamping block 304.

[0029] In this embodiment, a number of limit blocks 305 are fixed at equal intervals on the upper surface of the telescopic joint 303, and limit holes 306 adapted to the limit blocks 305 are provided near the front end of the fixed tube 302 and the telescopic joint 303. The limit blocks 305 are made of rubber. The limit blocks 305 are stuck on the limit holes 306 of the adjacent telescopic joint 303 or the fixed tube 302 to limit the extension length of the telescopic joint 303. When it needs to be moved, based on the material of the limit blocks 305, it is only necessary to continue pressing the limit blocks 305 until it is stretched to the required length and the limit blocks 305 are connected to the limit holes 306.

[0030] In this embodiment, a telescopic rod 307 is provided between the handle 308 and the fixed tube 302, and the two ends of the telescopic rod 307 are fixedly connected to the fixed tube 302 and the handle 308 respectively. A plurality of gaskets 309 are fixed to the outer surface of the handle 308, and the gaskets 309 are made of rubber. The telescopic rod 307 makes the use position of the handle 308 adjustable, and it can be adjusted according to the operating habits and comfort of different staff members, and the rubber gaskets 309 can reduce hand fatigue when holding the handle 308.

[0031] Specifically, the straight thread sleeve needs to be pre-tightened at the connecting end of the steel bar skeleton, and a grip is formed on the tightening sleeve 201 through three straight threaded steel bars 202. The bending curvature of the straight threaded steel bars 202 is adjusted according to the outer diameter of the straight threaded connection sleeve to ensure that the straight threaded sleeve can penetrate into one-third of the device. The staff holds the hand-held part 101 of the electric wrench 100, and sets the tightening sleeve 201 on the outside of the straight threaded connection sleeve. The straight threaded connection sleeve can be engaged by the thread of the straight threaded steel bar 202. The electric wrench 100 is controlled to start through the switch 103, and the gear box 102 controls the front tightening sleeve 201 to rotate, so that the straight threaded connection sleeve rotates with the electric wrench 100 to complete the sleeve tightening work;

[0032] According to the length of different straight thread connection sleeves, an adjusting rod 203 is provided at the rear end of the tightening sleeve 201. By adjusting the position of the adjusting rod 203 in the tightening sleeve 201, the depth of the straight thread connection sleeve into the tightening sleeve 201 is adjusted, and the sleeve is fixed by the limiting rod 204. When using straight thread connection sleeves with different diameters, it is necessary to replace the tightening components 200 with different diameters for matching;

[0033] Considering that the vibration generated by the long-term use of the electric wrench 100 will cause fatigue to the hands of the staff, an auxiliary component 300 is set on the rear side of the gear box 102 at the upper end of the electric wrench 100. According to the operating habits and comfort of different staff members, the handle 308 is first stretched by the telescopic rod 307 to adjust the position of the handle 308, and then the telescopic joint 303 is moved to adjust the position of the support plate 301, and the support plate 301 is placed against the torso of the staff. The vibration effect of the electric handle 308 is reduced by the rubber gasket 309 and the support plate 301 wrapped with rubber on the outside, thereby reducing the fatigue of the staff's hands. The socket that comes with the electric wrench 100 is not installed, and the tightening component 200 is directly installed for use.

[0034] The electric wrench 100, tightening sleeve 201, straight threaded steel bar 202, adjusting rod 203, limiting rod 204, supporting plate 301, fixing tube 302, telescopic joint 303, clamping block 304, limiting block 305, telescopic rod 307, handle 308, gasket 309 and other components of the utility model are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick tightening device for a straight threaded connection sleeve of a pile foundation reinforcement engineering, comprising an electric wrench (100), wherein the electric wrench (100) comprises a handheld portion (101), a gear box (102) and a switch (103), characterized in that: A tightening assembly (200) is arranged at the front end of the gear box (102), and the tightening assembly (200) comprises a tightening sleeve (201), a straight threaded steel bar (202), an adjusting rod (203) and a limiting rod (204); the straight threaded steel bar (202) is fixed to the outside close to the end of the tightening sleeve (201), the adjusting rod (203) is arranged at the rear end of the tightening sleeve (201), and the limiting rod (204) is arranged between the tightening sleeve (201) and the adjusting rod (203); An auxiliary component (300) is arranged at the rear end of the gear box (102), and the auxiliary component (300) comprises a support plate (301), a fixed cylinder (302), a telescopic joint (303), a clamping block (304) and a handle (308). The fixed cylinder (302) is fixed to the front side of the support plate (301), the telescopic joint (303) is arranged inside the fixed cylinder (302), the clamping block (304) is arranged at the outer end of the telescopic joint (303), and the handle (308) is arranged at the bottom of the fixed cylinder (302).

2. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 1, characterized in that: The rear end of the adjusting rod (203) is drivingly connected to the output end of the gear box (102), and the adjusting rod (203) is slidably connected to the tightening sleeve (201). A connecting hole (205) adapted to the limiting rod (204) is provided near the rear end of the tightening sleeve (201) and the outer side of the adjusting rod (203).

3. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 2, characterized in that: The limiting rod (204) passes through the tightening sleeve (201) and the adjusting rod (203) through the connecting hole (205), and is threadably matched with the tightening sleeve (201) and the adjusting rod (203).

4. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 3, characterized in that: At least three straight threaded steel bars (202) are fixed to the outer side of the tightening sleeve (201), and the straight threaded steel bars (202) are arc-shaped.

5. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 1, characterized in that: The outer side of the support plate (301) is wrapped with rubber, a plurality of telescopic joints (303) are arranged inside the fixed cylinder (302), the plurality of telescopic joints (303) are slidably connected to each other, a clamping block (304) is fixed to the end of the innermost telescopic joint (303), a clamping slot adapted to the clamping block (304) is provided at the rear end of the gear box (102), and the telescopic joint (303) is clamped to the rear end of the gear box (102) through the clamping block (304) and the clamping slot.

6. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 5, characterized in that: A plurality of limit blocks (305) are fixed at equal intervals on the upper surface of the telescopic joint (303), and limit holes (306) adapted to the limit blocks (305) are provided near the front end of the fixing tube (302) and the telescopic joint (303), and the limit blocks (305) are made of rubber.

7. A quick tightening device for a straight threaded connection sleeve for pile foundation reinforcement engineering according to claim 6, characterized in that: A telescopic rod (307) is provided between the handle (308) and the fixed tube (302), and two ends of the telescopic rod (307) are fixedly connected to the fixed tube (302) and the handle (308) respectively. A plurality of gaskets (309) are fixed to the outer surface of the handle (308), and the gaskets (309) are made of rubber.

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