Wrench assembly for fastening screws in small space

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a wrench assembly for fastening screws in small space, which comprises a long sleeve and a long screw rod arranged in the long sleeve, the lower end of the long screw rod extends out of the long sleeve, the upper end of the long screw rod is connected with a sleeve linkage right-angle wrench, and the tail end of the sleeve linkage right-angle wrench is connected with a first wrench end; the auxiliary stabilizing assembly comprises a handheld long rod, a second wrench end is arranged on the handheld long rod, and the wrench assembly for fastening the screws in the small space has the advantages of being simple in structure and convenient to use, assemble, disassemble and replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a wrench assembly for screwing and fastening in a small space. Background Art

[0002] In the prior art, the boring head has no protection device, and iron pins and dust are likely to enter the inside of the boring head, damaging the precision parts inside the boring head, affecting the normal use or service life. It is necessary to frequently clean the internal structure or replace parts, which affects the processing efficiency, has a high repair rate, and a high maintenance cost.

[0003] Currently, there are also some tools in the prior art suitable for construction in narrow spaces. For example, Patent CN102941555A discloses a multi-functional wrench for a narrow operation space, which includes a handle, a rod arm, a connecting rod, a bevel gear steering mechanism, and a connecting head. The handle is fixedly installed at the front end of the rod arm, the rear end of the rod arm is assembled with the front end of the connecting rod, the rear end of the connecting rod is assembled with the front end of the bevel gear steering mechanism, the rear end of the bevel gear steering mechanism is assembled with the connecting head, and the connecting head matches the threaded connector to be disassembled and assembled. When this invention is applied to the maintenance operation of mechanical equipment and power facilities, on the one hand, since the disassembly of the parts near the threaded connector to be disassembled and assembled is avoided, the maintenance time of the equipment is shortened, and the working efficiency is greatly improved. On the other hand, the original assembly accuracy of the equipment is maintained, ensuring the normal operation of the equipment.

[0004] It is in a manual form, that is, "an operator rotates the handle 1 with one hand and holds the L-shaped mounting bracket 4-1 with the other hand to stably connect the connecting head 5 with the threaded connector to be disassembled and assembled; this invention can be assembled with connecting heads 5 of various specifications and is suitable for the disassembly and assembly of threaded connectors of different models", but its operation efficiency is relatively low, the operation is inconvenient, and there is a feeling of "top-heavy".

[0005] Patent CN104669184A discloses an internally-driven 90-degree socket wrench, which includes a wrench rod, a wrench head, a driving bevel gear, a transmission shaft, a rotating joint, and a socket chuck. A pair of bevel gears are installed inside the wrench head, and the transmission shaft is installed inside the wrench rod; the socket chuck is connected to one bevel gear, the transmission shaft is connected to the other bevel gear, and the other end of the transmission shaft protrudes from the end of the wrench rod and is a rotating joint. This device can, in the occasion where the wrench cannot be operated, connect the socket to the socket chuck, the socket is inserted into the nut, and a socket wrench or a power tool is connected to the rotating joint of this device, and the bolt is tightened through the transmission device; this device has a simple structure, is easy to use, safe and reliable, and can enable the staff to conveniently carry out the bolt tightening operation in a narrow space, making up for the previous deficiencies, improving the operation efficiency, saving manpower, and achieving the purpose of convenience and quickness.

[0006] It can cooperate with power tools, but its structure is troublesome to assemble and not easy to disassemble, having certain usage limitations. Summary of the Utility Model

[0007] The utility model provides a wrench assembly for tightening screws in a small space, which can solve the problems pointed out in the background technology.

[0008] A wrench assembly for tightening screws in a small space includes a long sleeve and a long screw rod built in the long sleeve. The lower end of the long screw rod extends outside the long sleeve, and its upper end is connected to a sleeve linkage right-angle wrench. The end of the sleeve linkage right-angle wrench is connected to a first wrench end; the auxiliary stability assembly includes a hand-held long rod, and a second wrench end is provided on the hand-held long rod.

[0009] Preferably, the first wrench end is a socket wrench end.

[0010] Preferably, the socket wrench end is a strong magnetic socket wrench end.

[0011] Preferably, the upper end of the long screw rod is connected to the sleeve linkage right-angle wrench through a threaded connecting rod, and the sleeve linkage right-angle wrench is stably connected to the upper end of the long sleeve through a fixing member.

[0012] Preferably, the fixing member is a fixed sleeve, and a locking bolt is provided on it.

[0013] Beneficial effects: The utility model provides a wrench assembly for tightening screws in a small space, which has a simple structure, is convenient to use, easy to assemble and disassemble, and also convenient for disassembly and replacement. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of the utility model,

[0015] Figure 2 is a split schematic diagram of the utility model,

[0016] Description of the reference numerals in the drawings:

[0017] Reference numerals in the figure: long sleeve 1; long screw rod 2; sleeve linkage right-angle wrench 3; first wrench end 4; threaded connecting rod 5; fixing member 6; locking bolt 7. Detailed Description of the Preferred Embodiment

[0018] The following combines the drawings to describe in detail a specific embodiment of the utility model, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.

[0019] Embodiment 1: As Figure 1-2As shown in the figure, a wrench assembly for screwing fasteners in a small space includes a long sleeve 1 and a long screw rod 2 built inside the long sleeve 1. The lower end of the long screw rod 2 extends outside the long sleeve 1, and its upper end is connected to a sleeve linkage right-angle wrench 3. The end of the sleeve linkage right-angle wrench 3 is connected to a first wrench end 4.

[0020] Specifically, the first wrench end 4 is a socket wrench end, and the socket wrench end is a strong magnetic socket wrench end. The upper end of the long screw rod 2 is connected to the sleeve linkage right-angle wrench 3 through a threaded connecting rod 5, that is, the threaded connecting rod 5 is connected to the transmission rod in the sleeve linkage right-angle wrench 3 so as to be able to drive the output end to rotate, and thus the output end drives the first wrench end 4 to rotate. The sleeve linkage right-angle wrench 3 is stably connected to the upper end of the long sleeve 1 through a fixing member 6. The fixing member 6 is a fixed sleeve, and a locking bolt 7 is provided on it. The upper end of the long sleeve 1 has a through hole that cooperates with the locking bolt 7. The locking bolt 7 is screwed into the through hole to lock the sleeve linkage right-angle wrench 3 stably.

[0021] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A wrench assembly for screwing and fastening in a small space, characterized in that: It includes a long sleeve (1) and a long lead screw (2) built inside the long sleeve (1). The lower end of the long lead screw (2) extends outside the long sleeve (1), and its upper end is connected to a sleeve linkage right-angle wrench (3), and the end of the sleeve linkage right-angle wrench (3) is connected to a first wrench end (4).

2. The wrench assembly for screwing in a small space according to claim 1, wherein: The first wrench end (4) is a socket wrench end.

3. A wrench assembly for tightening screws in a small space according to claim 2, characterized in that: The socket wrench end is a strong magnetic socket wrench end.

4. A wrench assembly for tightening screws in a small space according to claim 1, characterized in that: The upper end of the long lead screw (2) is connected to the sleeve linkage right-angle wrench (3) through a threaded connecting rod (5), and the sleeve linkage right-angle wrench (3) is stably connected to the upper end of the long sleeve (1) through a fixing member (6).

5. The wrench assembly for tightening screws in a small space according to claim 4, wherein: The fixing member (6) is a fixed sleeve, and a locking bolt (7) is provided on it.

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