Nut fastening device suitable for narrow area

Abstract

The utility model discloses a nut fastening device suitable for a narrow area, which belongs to the technical field of wrenches and comprises a working end with an opening on one side, and a fixing rod parallel to the working end in the horizontal direction is fixedly connected to the outer wall, deviating from the opening, of the working end. The distance between the opening of the working end and the end, away from the working end, of the fixing rod is smaller than the distance between two adjacent hydraulic pipelines, the end, away from the working end, of the fixing rod is detachably connected with a plurality of connecting rods, and the connecting rods are perpendicular to the fixing rod in the vertical direction. Meanwhile, the end, away from the fixing rod, of the connecting rod is detachably connected with a holding rod, and the holding rod is perpendicular to the connecting rod and parallel to the fixing rod. The nut can be rotated in a narrow space by rotating the nut, and finally the purpose of rotating the working end and the nut is achieved, so that the nut is fastened in place, and the situations of nut loosening, hydraulic oil leakage and pressure relief caused by the fact that the nut is not fastened in place are prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wrench technical field, and specifically relates to a nut fastening device suitable for narrow areas. BACKGROUND

[0002] Nuts and bolts are the most commonly used fastening devices for locking, and there are many fastening tools for them. When fastening nuts, a fastening space is required, such as a rotating space when using a wrench or other tools, and the nuts can be directly rotated and fastened. When there is a rotating space at the top, a sleeve rod can be used to lead out and then the nuts can be rotated and fastened.

[0003] In the process of fastening the butt joint nuts of the inlet and outlet pipelines of the hydraulic station valve table, the hydraulic pipelines are densely laid, the fastening nuts are closely arranged, and the space is very narrow. In the process of fastening the nuts using an ordinary wrench, it is extremely inconvenient, the worker's hand-held wrench cannot easily reach the nuts, and thus the nuts are not fastened in place, which can easily cause the nuts to loosen, hydraulic oil to leak, pressure to be released, and other problems, thereby causing equipment failure, increasing labor intensity, and reducing work efficiency. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the existing technology is not convenient to use an ordinary wrench in the process of fastening the butt joint nuts of the inlet and outlet pipelines of the hydraulic station valve table due to the very narrow space, the utility model provides a nut fastening device suitable for narrow areas, which achieves the purpose of conveniently fastening the butt joint nuts of the inlet and outlet pipelines of the hydraulic station valve table in a narrow space.

[0005] The utility model discloses a nut fastening device suitable for narrow areas, which adopts the technical scheme that:

[0006] The utility model discloses a nut fastening device suitable for narrow areas, which adopts the technical scheme that:

[0007] The utility model discloses a nut fastening device suitable for narrow areas, which adopts the technical scheme that:

[0008] The utility model discloses a nut fastening device suitable for narrow areas, which adopts the technical scheme that:

[0009] The further improvement of the technical scheme of the utility model lies in that the side wall of the step is provided with a bottom connecting hole communicated with the bottom connecting groove, and the fixing block is provided with a bottom through hole matched with the bottom connecting hole.

[0010] The further improvement of the technical scheme of the utility model lies in that the holding rod is arranged in T shape and comprises a holding part perpendicular to the connecting rod and parallel to the fixing rod, and a connecting part connected with the holding part perpendicularly and matched with the top connecting groove; wherein the connecting part is located at the central position of the length direction axial of the holding part.

[0011] The further improvement of the technical scheme of the utility model lies in that the distance from the end of the holding part to the connecting part is at least the same as the distance from the opening of the working end to the connecting rod.

[0012] The further improvement of the technical scheme of the utility model lies in that the connecting rod is provided with a top connecting hole corresponding to the position of the top connecting groove, and the connecting part is provided with a top through hole matched with the top connecting hole.

[0013] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model includes:

[0014] In the utility model, the distance from the opening of the working end to the end of the fixing rod away from the working end is less than the distance between two adjacent hydraulic pipelines, so that the working end can be conveniently stretched to the position of the nut through the space between the two adjacent pipelines.

[0015] Meanwhile, the utility model is provided with a plurality of connecting rods, so that the holding rod is located above the hydraulic pipeline, thereby facilitating the worker to hold the holding rod, and the connecting rod is rotated by rotating the holding rod, so as to rotate the working end and the nut, thereby fastening the nut in place, preventing the nut from loosening, hydraulic oil from leaking, and pressure relief.

[0016] Meanwhile, in the utility model, the fixing rod and the connecting rod are detachably connected, so that the utility model can be conveniently divided into two parts when not in use, thereby reducing the space occupied by the utility model.

[0017] In addition, in the utility model, the fixing rod and the connecting rod are detachably connected, so that different working ends can be replaced according to the size of different nuts, thereby achieving the purpose of matching with the nut. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of a nut fastening device suitable for narrow areas of the utility model;

[0019] Figure 2It is explosive structure schematic view of the nut fastening device suitable for narrow area of the utility model;

[0020] Figure 3 It is cross section structure schematic view of the connecting rod of the nut fastening device suitable for narrow area of the utility model;

[0021] Figure 4 It is structure schematic view of the nut fastening device suitable for narrow area of the utility model has multiple connecting rods.

[0022] In the drawing, 1, working end, 11, opening,

[0023] 2, fixed rod, 21, fixed block, 22, bottom through hole,

[0024] 3, connecting rod, 31, top connecting groove, 32, step, 33, bottom connecting groove, 34, bottom connecting hole, 35, top connecting hole, 36, bottom bolt, 37, top bolt,

[0025] 4, handle, 41, holding part, 42, connecting part, 43, top through hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further explained in detail below by combining with specific implementation manners and referring to the drawings. In the following description, the description of known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0027] Firstly refer to Figure 1 , according to Figure 1 It is known that the utility model includes the working end 1 arranged horizontally, the working end 1 has the opening 11 at one end, and the working end 1 in the utility model is the same as the working end 1 structure of the commonly used open knock wrench in prior art. Figure 1 Continue to refer to

[0028] The above connecting rod 3 can refer to Figure 2 and Figure 3 when being arranged concretely, according to Figure 2 and Figure 3 It is known that the end of the connecting rod 3 connected with the fixed rod 2 is fixedly connected with the step 32, the step 32 is provided with the bottom connecting groove 33, and the end of the fixed rod 2 away from the step 32 is provided with the top connecting groove 31 matched with the step 32.

[0029] In order to facilitate detachable connection of the fixed rod 2 and the connecting rod 3, continue to refer toFigure 2 It can be known that the fixed rod 2 is fixedly connected with a fixed block 21 at one end away from the working end 1, the fixed block 21 is perpendicular to the fixed rod 2 in the vertical direction and is matched with the bottom connecting groove 33, and the shape of the fixed block 21 can be cylindrical, prismatic or the like. The fixed block 21 is inserted into the bottom connecting groove 33, and in order to connect the fixed rod 2 and the connecting rod 3, further referring to Figure 2 , the side wall of the step 32 is provided with a bottom connecting hole 34 which is communicated with the bottom connecting groove 33, and the fixed block 21 is provided with a bottom through hole 22 which is communicated with the bottom connecting hole 34 at the position corresponding to the bottom connecting hole 34; as shown in Figure 1 , when the fixed block 21 is inserted into the bottom connecting groove 33, the bottom connecting hole 34 is communicated with the bottom through hole 22, the fixed block 21 and the step 32 can be connected through the mutual cooperation of the bottom bolt 36 and the nut, so that the fixed rod 2 and the connecting rod 3 are detachably connected together.

[0030] Further referring to Figure 1 , the connecting rod 3 is detachably connected with a handle 4 at one end away from the fixed rod 2, in order to facilitate the connection of the handle 4 and the connecting rod 3, the handle 4 is set with reference to Figure 1 and Figure 2 It can be known that the handle 4 comprises a holding part 41, the center position of the length axis of the holding part 41 is fixedly connected with a connecting part 42 which is perpendicular to the holding part 41 and is matched with the top connecting groove 31, and the shape of the connecting part 42 can be cylindrical, prismatic or the like. In order to connect the handle 4 and the connecting rod 3, further referring to Figure 2 , the side wall of the connecting rod 3 is provided with a top connecting hole 35 at the position corresponding to the top connecting groove 31, and the connecting part 42 is provided with a top through hole 43 which is communicated with the top connecting hole 35 at the position corresponding to the top connecting hole 35; as shown in Figure 1 , when the connecting part 42 is inserted into the top connecting groove 31, the top through hole 43 is communicated with the top connecting hole 35, the connecting part 42 and the connecting rod 3 can be connected through the mutual cooperation of the top bolt 37 and the nut, so that the handle 4 and the connecting rod 3 are detachably connected together.

[0031] Meanwhile, as shown in Figure 1 , the distance from the end of the holding part 41 of the handle 4 to the connecting part 42 is at least the same as the distance from the opening 11 of the working end 1 to the connecting rod 3, in order to facilitate the rotation of the nut through the working end 1 with less labor, the distance from the end of the holding part 41 of the handle 4 to the connecting part 42 can be greater than the distance from the opening 11 of the working end 1 to the connecting rod 3.

[0032] The working principle of the automatic bag breaking device is as follows: Figure 1As shown, the utility model for use a connecting rod 3 can make the handle 4 is located above the hydraulic pipeline when, can work end 1 is in-depth to the lower part of the hydraulic pipeline, until work end 1 is set on the nut, then through rotating handle 4, thereby drive the nut rotation in the limited space, reach the purpose of convenient in the small space to the butt joint nut of hydraulic station valve table inlet and outlet pipeline is fastened.

[0033] As Figure 4 As shown, when the utility model needs to use multiple connecting rods 3 can make the handle 4 is located above the hydraulic pipeline, first, multiple connecting rods 3 are connected, that is, the step 32 of a connecting rod 3 is inserted into the top connecting groove 31 of another connecting rod 3, at this time, the bottom connecting hole 34 on the step 32 is communicated with the top connecting hole 35 on the connecting rod 3, then multiple connecting rods 3 are sequentially connected by bolts and nuts, then work end 1 is in-depth to the lower part of the hydraulic pipeline, until work end 1 is set on the nut, then through rotating handle 4, thereby drive the nut rotation in the limited space, reach the purpose of convenient in the small space to the butt joint nut of hydraulic station valve table inlet and outlet pipeline is fastened.

[0034] In the above embodiment, the utility model provides a nut fastening device suitable for narrow area, because the distance from the opening of work end to the end of fixed rod away from work end is less than the distance between two adjacent hydraulic pipelines, therefore, work end can be conveniently stretched to the position of nut through the space between two adjacent pipelines, at the same time, the utility model can make handle rod be located above the hydraulic pipeline by setting several connecting rods, thereby facilitating workers to hold handle rod, and drive connecting rod rotation by rotating handle rod, finally, the purpose of rotating work end and nut is achieved, thereby fastening nut in place, prevent the occurrence of nut loosening, hydraulic oil leakage and pressure relief due to nut not fastened in place.

[0035] The above-described embodiments are merely preferred embodiments of the utility model, and do not limit the concept and scope of the utility model. Various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design concept of the utility model shall fall within the protection scope of the utility model, and the technical content claimed by the utility model has been fully recorded in the claims.

Claims

1. A nut tightening device suitable for use in narrow areas, characterized by: The invention comprises a working end (1) with an opening (11) on one side, wherein the outer wall of the working end (1) facing away from the opening (11) is fixedly connected to a fixing rod (2) parallel to the working end (1) in the horizontal direction, and the distance between the opening (11) of the working end (1) and the end of the fixing rod (2) away from the working end (1) is less than the distance between two adjacent hydraulic pipes, and the end of the fixing rod (2) away from the working end (1) is detachably connected to a plurality of connecting rods (3), and the connecting rods (3) are perpendicular to the fixing rod (2) in the vertical direction; at the same time, the end of the connecting rod (3) away from the fixing rod (2) is detachably connected to a gripping rod (4), and the gripping rod (4) is perpendicular to the connecting rod (3) and parallel to the fixing rod (2).

2. A nut tightening device suitable for use in narrow areas according to claim 1, characterized in that: One end of the connecting rod (3) connected to the grip rod (4) is provided with a top connecting groove (31), and the other end of the connecting rod (3) is provided with a step (32) matched with the top connecting groove (31), and a bottom connecting groove (33) is provided in the step (32).

3. A nut tightening device suitable for use in narrow areas according to claim 2, characterized in that: A fixing block (21) that matches the bottom connecting groove (33) is provided at a position corresponding to the connecting rod (3) at one end of the fixing rod (2) away from the working end (1).

4. A nut tightening device suitable for use in narrow areas according to claim 3, characterized in that: The side wall of the step (32) is provided with a bottom connecting hole (34) connected to the bottom connecting groove (33), and the fixing block (21) is provided with a bottom through hole (22) matched with the bottom connecting hole (34).

5. The nut tightening device suitable for narrow areas according to claim 2, characterized in that: The gripping rod (4) is arranged in a T-shape and comprises a gripping portion (41) perpendicular to the connecting rod (3) and parallel to the fixing rod (2), and a connecting portion (42) perpendicularly connected to the gripping portion (41) and matched with the top connecting groove (31); wherein the connecting portion (42) is located at the center position of the gripping portion (41) in the axial direction of the length.

6. A nut tightening device suitable for use in narrow areas according to claim 5, characterized in that: The distance from the end of the gripping portion (41) to the connecting portion (42) is at least the same as the distance from the opening (11) of the working end (1) to the connecting rod (3).

7. The nut tightening device suitable for use in narrow areas according to claim 5, characterized in that: The connecting rod (3) is provided with a top connecting hole (35) at a position corresponding to the top connecting groove (31), and the connecting portion (42) is provided with a top through hole (43) that matches the top connecting hole (35).

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