Guard rail bolt quick release wrench

Abstract

The utility model discloses a rail bolt quick loosening spanner, including spanner casing, operation wheel and drive arrangement. The front end of spanner casing is equipped with the sleeve, and the operation wheel rotatable installation is in the spanner casing, and the operation wheel is equipped with the nut cover along its axial direction, and the nut cover extends into the sleeve. Drive arrangement is installed in the spanner casing, and drive arrangement is transmission connection with operation wheel to drive operation wheel rotation. Among them, the sleeve and the nut cover are provided with the arcuate gap formed by the same chord cutting, so that the nut of the outside can enter the nut cover. The above-mentioned rail bolt quick loosening spanner, the nut of rail bolt enters the nut cover from the arcuate gap, and the nut cover can be simply and conveniently sleeved on the nut, and the efficiency of rail maintenance and repair can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway track technical field, concretely relates to a rail bolt quick loosening spanner. BACKGROUND

[0002] Guard rail refers to the steel rail laid on the inner side of the rail on the track and does not bear the vertical load of the wheel. According to the laying site, there are different functions. The guard rail at the turnout frog is laid on the inner side of the steel rail opposite the harmful space of the frog, guides the wheel through the harmful space, avoids hitting the tip of the frog, and the guard rail on the bridge can prevent the derailed vehicle from hitting the bridge or falling under the bridge. The guard rail laid on the inner side of the inner rail on the small radius curve can reduce the side wear of the outer rail.

[0003] During use, the guard rail needs to be maintained and repaired. In actual railway maintenance work, the bolts on the guard rail often need to be disassembled. However, due to the narrow gap between the guard rail and the rail, the nut sleeve of the traditional spanner cannot be easily fitted onto the nut, resulting in low efficiency of maintenance and repair. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a guard rail bolt quick loosening spanner to solve the problem of low efficiency of maintenance and repair due to the narrow gap between the guard rail and the rail and the difficulty of fitting the nut sleeve of the traditional spanner onto the nut.

[0005] A guard rail bolt quick loosening spanner comprises:

[0006] A spanner shell is provided with a sleeve at the front end.

[0007] A work wheel is rotatably installed in the spanner shell, and the work wheel is provided with a nut sleeve along its axial direction, and the nut sleeve extends into the sleeve.

[0008] A driving device is installed in the spanner shell, and the driving device is in transmission connection with the work wheel to drive the work wheel to rotate.

[0009] The sleeve and the nut sleeve are provided with arc-shaped notches cut by the same chord to enable the nut outside to enter the nut sleeve.

[0010] In one embodiment, the driving device comprises a power wheel and a transmission structure, the power wheel is rotatably installed in the spanner shell, the power wheel is provided with a connecting port for connecting with an external power source, and the transmission structure is in transmission connection with the work wheel and the power wheel.

[0011] In one of the embodiments, the work wheel and the power wheel are gears, the transmission structure comprises a first transition gear and a second transition gear rotatably installed in the wrench housing, the first transition gear is engaged with the power wheel and the second transition gear, and the second transition gear is engaged with the work wheel.

[0012] In one of the embodiments, the wrench housing is provided with a plurality of shaft holes, and the power wheel, the first transition gear, the second transition gear and the work wheel are rotatably installed in the wrench housing through the shaft holes.

[0013] In one of the embodiments, the wrench housing comprises a wrench bottom plate and a wrench cover plate, and the wrench cover plate is detachably connected with the wrench bottom plate through threaded fasteners.

[0014] In one of the embodiments, the nut sleeve comprises opposite first and second end faces, the first end face is flush with the end face of the sleeve, and the second end face extends through the bottom wall of the wrench housing.

[0015] In one of the embodiments, the central angle of the arc-shaped notch is less than or equal to 180°.

[0016] In one of the embodiments, the part of the nut sleeve extending into the sleeve is provided with a reinforced portion with increased thickness.

[0017] In one of the embodiments, a wrench handle is further included, and the wrench handle is connected with the rear end of the wrench housing.

[0018] In one of the embodiments, the wrench handle is provided with a weight-reducing hole extending in the axial direction thereof.

[0019] The rail bolt quick release wrench has at least the following advantages:

[0020] When it is necessary to disassemble the rail bolt, the wrench is inserted into the gap between the rail and the steel rail, and the nut of the rail bolt is inserted into the nut sleeve from the arc-shaped notch in the process of continuous insertion, so that the nut sleeve is sleeved on the nut. Then, the wrench is moved towards the rail, so that the entire nut sleeve is sleeved on the nut. Finally, the driving device drives the work wheel to rotate, and the rotation of the work wheel drives the nut sleeve to rotate, thereby achieving the disassembly or tightening of the nut. The nut of the rail bolt is inserted into the nut sleeve from the arc-shaped notch, and the nut sleeve can be simply and conveniently sleeved on the nut, thereby improving the efficiency of rail maintenance and repair. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application, the following will be a brief description of the specific embodiments of the drawings needed to use. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 is an embodiment of the rail bolt quick release wrench structure diagram;

[0023] Figure 2 is Figure 1 The rail bolt quick release wrench is shown in the semi-sectional view.

[0024] Reference signs:

[0025] 10 - wrench housing, 11 - sleeve, 111 - limiting part, 12 - wrench bottom plate, 13 - wrench cover plate, 14 - screw, 15 - shaft hole, 20 - operating wheel, 21 - nut sleeve, 22 - arc-shaped notch, 23 - reinforcing part, 30 - driving device, 31 - power wheel, 312 - connecting port, 32 - transmission structure, 321 - first transition gear, 322 - second transition gear, 40 - wrench handle, 42 - weight-reducing hole. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways from those described herein without departing from the spirit of the present application, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0029] Please refer to Figure 1 and Figure 2The rail bolt quick release wrench in an embodiment comprises a wrench housing 10, a working wheel 20 and a driving device 30.

[0030] The wrench housing 10 is the main structure of the wrench, and is used to accommodate and carry the working wheel 20 and the driving device 30. The front end of the wrench housing 10 is provided with a sleeve 11.

[0031] In an embodiment, the wrench housing 10 comprises a wrench bottom plate 12 and a wrench cover plate 13. The wrench cover plate 13 is detachably connected with the wrench bottom plate 12 through a threaded fastener. The installation space of the working wheel 20 and the driving device 30 is formed between the wrench cover plate 13 and the wrench bottom plate 12. The sleeve 11 is arranged on the wrench cover plate 13.

[0032] Specifically, the threaded fastener is a screw 14. The wrench bottom plate 12 and the wrench cover plate 13 are both provided with mounting holes. The screw 14 is arranged in the mounting holes to connect the wrench cover plate 13 with the wrench bottom plate 12. The wrench housing 10 is a detachable structure, which can facilitate the installation, maintenance and replacement of the working wheel 20 and the driving device 30 in the wrench housing 10.

[0033] The working wheel 20 is rotatably arranged in the wrench housing 10. The working wheel 20 is provided with a nut sleeve 21 along the axial direction, and the nut sleeve 21 extends into the sleeve 11. The driving device 30 is arranged in the wrench housing 10. The driving device 30 is in transmission connection with the working wheel 20 to drive the working wheel 20 to rotate.

[0034] The sleeve 11 and the nut sleeve 21 are provided with an arc-shaped notch 22 which is formed by cutting with the same chord. The arc-shaped notch 22 can facilitate the nut to enter the nut sleeve 21 from the outside. That is, the nut sleeve 21 and the sleeve 11 are cut downward at the same time with the same chord. The notch formed by the nut sleeve 21 and the sleeve 11 is the arc-shaped notch 22.

[0035] When the bolt of the guard rail needs to be disassembled, the wrench is inserted into the gap between the guard rail and the rail. During the process of continuously inserting downward, the nut of the guard rail bolt enters the nut sleeve 21 from the arc-shaped notch 22, so that the nut sleeve 21 is sleeved on the nut. Then, the wrench is moved towards the guard rail, so that the entire nut sleeve 21 is sleeved on the nut. Finally, the driving device 30 drives the working wheel 20 to rotate. The rotation of the working wheel 20 drives the nut sleeve 21 to rotate, so that the nut is disassembled or tightened.

[0036] In an embodiment, the driving device 30 comprises a power wheel 31 and a transmission structure 32, the power wheel 31 is rotatably installed in the wrench housing 10, the power wheel 31 is provided with a connecting port 312 for connecting with an external power source, and the transmission structure 32 is in transmission connection with the work wheel 20 and the power wheel 31. Among them, the power wheel 31 can be driven to rotate by the external power source, and the rotation of the power wheel 31 is transmitted to the work wheel 20 through the transmission structure 32 to realize the rotation of the work wheel 20, and then the nut sleeve 21 on the work wheel 20 realizes the tightening or disassembly of the nut.

[0037] In an embodiment, the external power source can be a motor or a hydraulic motor, or an electric wrench or an electric drill that can realize rotation, or even a rocker shaken by external personnel, as long as it can realize rotary motion. The shape of the connecting port 312 can be designed according to the specific design of the external power source, such as a triangle, a square, a pentagon, a hexagon, or an octagon. Of course, the shape of the connecting port 312 can also be circular, and at this time the external rotating shaft is in interference fit with the connecting port 312.

[0038] In an embodiment, the transmission structure 32 comprises a first transition gear 321 and a second transition gear 322, and the work wheel 20 and the power wheel 31 are also gears. The first transition gear 321 and the second transition gear 322 are rotatably installed in the wrench housing 10, and the first transition gear 321 and the second transition gear 322 are located between the power wheel 31 and the work wheel 20. The first transition gear 321 is in meshing connection with the power wheel 31 and the second transition gear 322, and the second transition gear 322 is in meshing connection with the work wheel 20.

[0039] Among them, the first transition gear 321 and the second transition gear 322 can adjust the rotation speed, and the higher rotation speed of the power wheel 31 can be reduced to realize the rotation speed of the work wheel 20 not too fast, avoiding the danger in the process of disassembling the guard rail bolt. Alternatively, the first transition gear 321 and the second transition gear 322 can increase the rotation speed of the work wheel 20 under the condition that the power wheel 31 is rotated by the rocker, so as to ensure the efficiency of disassembling the guard rail bolt.

[0040] In an embodiment, the wrench housing 10 is provided with a plurality of shaft holes 15, and the plurality of shaft holes 15 are arranged in sequence and at intervals from the front end to the rear end of the wrench housing 10. The power wheel 31, the first transition gear 321, the second transition gear 322 and the work wheel 20 are rotatably installed in the shaft holes 15 to realize the rotatable installation in the wrench housing 10.

[0041] It can be understood that in other embodiments, the transmission structure 32 can also adopt other ways that can realize rotary motion transmission, such as belt, chain or friction transmission.

[0042] In an embodiment, the nut sleeve 21 comprises opposite first and second end faces, the first end face is flush with the end face of the sleeve 11, and the second end face extends through the bottom wall of the wrench housing 10. Specifically, the second end face extends through the wrench bottom plate 12.

[0043] The nut sleeve 21 has a portion with an arc-shaped notch 22 inside the sleeve 11, and a portion in the form of a complete ring inside the wrench housing 10. The portion of the nut sleeve 21 in the form of a ring can prevent the nut sleeve 21 from being separated from the nut, and the portion of the nut sleeve 21 with the arc-shaped notch 22 can facilitate the nut to enter the nut sleeve 21, while ensuring that the nut sleeve 21 has sufficient sleeving length with the nut to ensure normal tightening and disassembly of the nut.

[0044] In an embodiment, the portion of the nut sleeve 21 extending into the sleeve 11 is provided with a thickened reinforcing portion 23, that is, the portion of the nut sleeve 21 designed with the arc-shaped notch 22 has increased thickness, which can ensure that the portion of the nut sleeve 21 with the arc-shaped notch 22 has sufficient strength to avoid the nut sleeve 21 from being easily damaged due to reduced strength caused by the arc-shaped notch 22. At this time, the top end of the sleeve 11 is inwardly bent to form a limiting portion 111, and the reinforcing portion 23 of the nut sleeve 21 and the limiting portion 111 form a limiting fit to limit the axial movement of the nut sleeve 21.

[0045] In an embodiment, the central angle of the arc-shaped notch 22 is less than or equal to 180°, that is, the arc-shaped notch 22 is less than or equal to a semicircle. In this embodiment, the central angle of the arc-shaped notch 22 is 120°. It can be understood that in other embodiments, the central angle of the arc-shaped notch 22 can also be any value between 120° and 180°.

[0046] In an embodiment, the guard rail bolt quick release wrench further comprises a wrench handle 40 connected to the rear end of the wrench housing 10. Specifically, the wrench handle 40 can facilitate the operator to take and operate the wrench. Specifically, the wrench handle 40 is detachably connected to the wrench housing 10 through the screw 14, and the wrench handle 40 is provided with a weight-reducing hole 42 extending in the axial direction thereof, which can reduce the weight of the wrench, reduce the amount of steel material used for the wrench, and reduce the cost.

[0047] The use method of the above-mentioned guard rail bolt quick release wrench is specifically as follows:

[0048] When it is necessary to disassemble the bolt of the guard rail, the operator manually drives the operation wheel 20 to rotate, so that the arc-shaped notch 22 of the nut sleeve 21 is aligned with the arc-shaped notch 22 of the sleeve 11.

[0049] Then, the operator lifts the wrench by the wrench handle 40, inserts the wrench into the gap between the guard rail and the rail, and continues to insert downward, so that the nut of the guard rail bolt enters the nut sleeve 21 from the arc-shaped gap 22.

[0050] The rotating shaft of the electric wrench is inserted into the connecting port 312 of the power wheel 31 to connect the electric wrench with the power wheel 31.

[0051] The nut of the guard rail bolt enters the nut sleeve 21 from the arc-shaped gap 22, and the nut sleeve 21 can be simply and conveniently sleeved on the nut, so that the efficiency of the guard rail maintenance can be improved.

[0052] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A quick-release wrench for rail guard bolts, characterized in that, include: A wrench housing, wherein a sleeve is provided at the front end of the wrench housing; The working wheel is rotatably mounted inside the wrench housing, and the working wheel is provided with a nut sleeve along its axial direction, and the nut sleeve extends into the sleeve. A drive unit is installed inside the wrench housing, and the drive unit is connected to the working wheel to drive the working wheel to rotate; The sleeve and the nut are provided with an arc-shaped notch formed by the same chord cut, so that the nut from the outside can enter the nut sleeve.

2. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, The drive device includes a drive wheel and a transmission structure. The drive wheel is rotatably mounted inside the wrench housing. The drive wheel is provided with a connection port for connecting to an external power source. The transmission structure drivesly connects the working wheel and the drive wheel.

3. The quick-release wrench for guard rail bolts according to claim 2, characterized in that, Both the working wheel and the power wheel are gears. The transmission structure includes a first transition gear and a second transition gear rotatably mounted in the wrench housing. The first transition gear meshes with the power wheel and the second transition gear, and the second transition gear meshes with the working wheel.

4. The quick-release wrench for guard rail bolts according to claim 3, characterized in that, The wrench housing has multiple shaft holes, and the power wheel, the first transition gear, the second transition gear and the working wheel are rotatably mounted in the wrench housing through the shaft holes.

5. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, The wrench housing includes a wrench base plate and a wrench cover plate, and the wrench cover plate and the wrench base plate are detachably connected by threaded fasteners.

6. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, The nut sleeve includes a first end face and a second end face opposite to each other. The first end face is flush with the end face of the sleeve, and the second end face extends through the bottom wall of the wrench housing.

7. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, The central angle of the arc-shaped notch is less than or equal to 180°.

8. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, The portion of the nut sleeve that extends into the sleeve is provided with a reinforced section of increased thickness.

9. The quick-release wrench for guard rail bolts according to claim 1, characterized in that, It also includes a wrench handle, which is connected to the rear end of the wrench housing.

10. The quick-release wrench for guard rail bolts according to claim 9, characterized in that, The wrench handle is provided with a weight-reducing hole extending along its axial direction.

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