Rail pull rod speed wrench

Abstract

The utility model belongs to the technical field of rail maintenance equipment, and particularly relates to a rail pull rod speed wrench. Through the linkage gear with the opening, the driving gear is utilized to drive the two driven gears as power, and the linkage gear with the opening rotates by a circle. And by utilizing the high rotating speed of the electric wrench and combining the speed reducing and force increasing functions of the gear set, the nut with larger fastening force can be quickly disassembled, so that the effect of quickly disassembling and fastening the nut with larger fastening force in a narrow space is realized. The design of the handle shell and the handle conforms to human engineering, long-time operation of workers is facilitated, the whole device is moderate in weight and easy to carry, the gear set is made of high-strength materials and protected through the front cover and the rear cover, and high durability and impact resistance are achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of track maintenance equipment, specifically relating to a quick wrench for track tie rods. Background Technology

[0002] Case 1: In track maintenance and construction, traditional adjustable wrenches are slow to operate, especially when removing track tie rod nuts, requiring frequent wrench opening adjustments to accommodate different nut sizes. This method is not only time-consuming but also prone to safety hazards due to prolonged construction time. For example, workers operating near the tracks for extended periods may face risks from passing trains or equipment vibrations. Furthermore, when removing nuts with traditional wrenches, uneven force or rust can easily lead to slippage or damage, further impacting construction efficiency and quality.

[0003] Case 2: In track maintenance, traditional methods involve using an open-end wrench to turn nuts. However, due to the rusted condition of the track environment, a single person's strength is insufficient to turn the nuts using a lever wrench. Therefore, two people are required to continuously press down on the lever to turn the nuts, rotating them only half a turn each time, failing to achieve a full turn quickly. This method is inefficient, time-consuming, labor-intensive, and poses safety hazards, including the risk of track derailment. Railway construction demands efficient and rapid track repairs, requiring completion within a specific timeframe to ensure normal train operation.

[0004] While automated equipment exists on the market, most are bulky and unsuitable for construction environments with narrow tracks. Therefore, developing a high-efficiency, portable quick-release wrench that can be used with existing electric wrenches is key to solving these problems. Utility Model Content

[0005] This utility model provides a quick-release wrench for a track lever, including...

[0006] Handle assembly: including handle shell and handle;

[0007] Gear set: first driven gear, second driven gear, open linkage gear, driving gear. The driving gear has a square inner cavity at its center, and the open linkage gear has a hexagonal inner cavity at its center. The cross-section of the hexagonal inner cavity is a regular hexagonal structure. The first driven gear and the second driven gear both have a rotating shaft and a bearing at their center.

[0008] The outer casing includes a front cover and a rear cover. Both the front cover and the rear cover are provided with a corresponding arc-shaped notch. The diameter of the arc-shaped notch is adapted to the outer diameter of the open linkage gear. The front cover and the rear cover are also provided with a corresponding through hole. The diameter of the through hole is adapted to the diameter of the connecting hole in the drive gear. Both the front cover and the rear cover are provided with grooves corresponding to the rotating shafts of the first driven gear and the second driven gear.

[0009] Fixing components: including fixing brackets and fixing bolts;

[0010] One end of the handle is nested with the handle shell, and the other end of the handle is nested with the fixed bracket. The fixed bracket and the shell are threaded together. A gear set is provided inside the shell. The driving gear meshes with the first driven gear and the second driven gear. The first driven gear meshes with the open linkage gear through its teeth. The second driven gear meshes with the open linkage gear, thereby forming a multi-stage transmission chain. The shafts of the first driven gear and the second driven gear are nested with the grooves provided on the front cover and the rear cover. The front cover and the rear cover are connected by fixing bolts.

[0011] Preferably, both the front cover and the rear cover have two grooves.

[0012] Preferably, the fixing bracket is a rectangular structure, and the front cover and the rear cover are provided with mounting holes on the side near the fixing bracket, and are threadedly connected to the fixing bracket by bolts.

[0013] Preferably, there are 4 bolts and 6 fixing bolts.

[0014] Preferably, the outer surface of the handle is provided with an anti-slip texture.

[0015] Preferably, the rear cover has ventilation holes for heat dissipation. Preferably, the handle shell is a hollow cylinder, and the handle shell has a long cylindrical structure.

[0016] Beneficial effects

[0017] This invention provides a quick-release wrench for track tie rods. Through a specially designed wrench head structure, it can be used with existing drilling rigs to quickly tighten and loosen nuts without repeated adjustments to the opening. Using this quick-release wrench with a drilling rig to disassemble nuts significantly reduces construction time and improves work efficiency. It also reduces the time construction personnel spend near the track, lowering safety risks. Furthermore, this quick-release wrench has a compact structure, is easy to carry, adapts to the needs of construction in confined spaces, is suitable for track tie rod nuts of different sizes, and is simple to operate, reducing the technical requirements for construction personnel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a front view of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a top view of Embodiment 1 of the present invention;

[0021] Figure 3 This is a bottom view of Embodiment 1 of the present invention;

[0022] Figure 4 This is a left view of Embodiment 1 of the present invention;

[0023] Figure 5 This is an exploded view of Embodiment 1 of this utility model;

[0024] Figure 6 This is a rendering of Embodiment 1 of the present invention;

[0025] Figure 7 This is an internal perspective view of Embodiment 1 of the present invention.

[0026] Marked in the attached diagram:

[0027] 1. Handle housing; 2. Handle; 3. Fixing bracket; 4. Drive gear; 5. First driven gear; 6. Front cover; 7. Second driven gear; 8. Open linkage gear; 9. Rear cover; 10. Bolt fixing link post; 11. Through hole; 12. Groove; 13. Bolt; 14. Gear link shaft; 15. Gear bearing. Detailed Implementation

[0028] The following will describe the present invention in conjunction with Embodiment 1 and the appendix. Figures 1-7 The technical solution of this utility model is clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] This utility model provides a track lever quick-release wrench, including a handle 2 and a handle housing 1 nested on the handle 2. The handle 2 and a fixed bracket 3 are nested together to support the wrench. The fixed bracket 3 is connected to the front cover 6 and the rear cover 9 through corresponding mounting holes and threaded bolts 13, thus providing external structural support. A gear set is housed within the housing formed by the front cover 6 and the rear cover 9. The drive gear 8 in the gear set has a hexagonal inner cavity that can accommodate an electric drill. Driven by the electric drill, the drive gear 4 meshes with a first driven gear 5, and then with a second driven gear 7. The first and second driven gears 5 and 7 further mesh with an open linkage gear 8, forming a multi-stage transmission structure. By adjusting the gear diameter ratio, a speed reduction and force amplification function is achieved, significantly increasing the output torque. The front cover 6 and the rear cover 9 are fixed together by fixing bolts 10, forming a single unit.

[0031] How to use it: The quick wrench includes a handle housing 1, a handle 2, a fixed bracket 3, a front cover 6, a rear cover 9, and a gear set (including a driving gear 4, a first driven gear 5, a second driven gear 7, and a third driven gear 8); the components are connected and fixed together by fixing bolts 10 and 13 to form a whole.

[0032] Insert the drive shaft of the electric drill into the square cavity of the drive gear 8 and ensure it is fixed in place. Align the first driven gear 4 of the quick-release wrench with the target track rod nut, start the electric drill, and the power of the electric drill will be transmitted to the gear set through the drive gear 8. The nut will be quickly rotated and loosened through multi-stage gear transmission. After loosening, stop the drill, remove the quick-release wrench, and complete the removal of the nut.

[0033] The working principle is as follows: the drive shaft of the electric drill is inserted into the drill hole of the drive gear 4, and the electric drill provides rotational power. The drive gear 4 transmits power to the gear set by meshing with the first driven gear 5 and the second driven gear 6. The first driven gear 5 and the second driven gear 6 then mesh with the open linkage gear 8 for transmission. The open linkage gear 8 is directly connected to the track tie rod nut. Through multi-stage gear transmission, the quick-release wrench can achieve high output torque with low input power, thereby quickly rotating and loosening the nut to achieve the purpose of disassembly.

[0034] This utility model provides a track lever quick wrench, which, through its unique structure and by utilizing the high speed of an electric drill combined with the deceleration and force-increasing function of the gear set, can quickly disassemble nuts with high tightening force. Furthermore, the design of the handle housing 1 and the handle 2 is ergonomic, making it convenient for workers to operate for extended periods. The overall weight of the device is moderate, making it easy to carry. Moreover, the gear set is made of high-strength material and is protected by the front cover 6 and the rear cover 9, giving it high durability and impact resistance.

Claims

1. A track rod quick wrench, characterized in that, Comprising Handle assembly: including handle shell (1), handle (2); Gear set: first driven gear (5), second driven gear (7), open linkage gear (8), driving gear (4), driving gear (4) is provided with a square inner cavity in the center, open linkage gear (8) is provided with a hexagonal open inner cavity in the center, the cross section of the hexagonal open inner cavity is regular hexagonal structure, the center of first driven gear (5) and second driven gear (7) is provided with shaft and bearing; Housing: including front cover (6), back cover (9), front cover (6) and back cover (9) are provided with a corresponding arc-shaped notch, the diameter of the arc-shaped notch is matched with the outer diameter of open linkage gear (8), front cover (6) and back cover (9) are also provided with a corresponding through hole (11), the diameter of through hole (11) is matched with the diameter of connecting hole in driving gear (4), front cover (6) and back cover (9) are provided with groove (12) corresponding to the shaft of first driven gear (5) and second driven gear (7); Fixed assembly: including fixed support (3) and fixed bolt (10); One end of handle (2) is nested with handle shell (1), the other end of handle (2) is nested with fixed support (3); fixed support (3) and housing are screw connected, the housing is provided with gear set, driving gear (4) is engaged with first driven gear (5) and second driven gear (7), first driven gear (5) is engaged with open linkage gear (8) through gear teeth, second driven gear (7) is engaged with open linkage gear (8), thereby forming multi-stage transmission chain, the shaft of first driven gear (5) and second driven gear (7) is nested with the groove (12) provided on front cover (6) and back cover (9), front cover (6) and back cover (9) are connected through fixed bolt (10).

2. A rail rod quick wrench according to claim 1, characterized in that The groove of front cover (6) and back cover (9) has two.

3. A rail rod quick wrench according to claim 1, wherein The fixed support (3) is rectangular structure, the side of front cover (6) and back cover (9) close to fixed support (3) is provided with mounting hole, which is screw connected with fixed support through bolt (13).

4. The rail rod quick wrench of claim 1, wherein, There are four bolts (13) and six fixed bolts (10).

5. The rail rod quick wrench of claim 1, wherein, The outer surface of handle (2) is provided with anti-skid texture.

6. A rail rod quick wrench according to claim 1, wherein The back cover (9) is provided with heat dissipation vent hole.

7. A rail rod quick wrench according to claim 1, wherein The handle shell (1) is hollow cylinder, the handle shell (1) is long strip cylindrical structure.

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