Transportation labor-saving wrench

Abstract

The utility model provides a transportation labor-saving wrench which comprises a fixing sleeve, a protective shell is fixedly installed at the bottom end of the fixing sleeve, a first gear is rotatably installed at the top of the interior of the protective shell through a bearing, a second gear is connected to the exterior of the first gear in a meshed mode, and the second gear and the protective shell are rotatably installed. According to the labor-saving wrench for transportation, the bolt sleeve is attached to the bolt installed on the transportation equipment, the first gear rotates to drive the second gear to rotate, the bolt sleeve is made to rotate, then the bolt installed on the transportation equipment is effectively driven to rotate, the second gear is larger than the first gear, and therefore the wrench has the labor-saving function; when the bolt sleeve is damaged or bolt sleeves of different sizes need to be replaced, the bolt sleeve is pulled out, the first connecting shaft is separated from the bolt sleeve, a new bolt sleeve is aligned to the first connecting shaft, and due to the arrangement of the magnetic attraction block, the bolt sleeve and the first connecting shaft are fixed.

Description

Technical Field

[0001] The utility model relates to the field of wrenches, in particular to a wrench for labor-saving transportation. Background Art

[0002] Transportation equipment is the carrier for goods to be transported from one place to other regions and is the tool of the transportation mode. Since transportation is accomplished by means of certain transportation tools and via certain transportation lines and ports and stations, the transportation mode depends on the types and natures of the transportation tools, transportation lines and ports and stations used, and is affected by reasons such as weather, characteristics of basic facilities and technical equipment, and main technical and economic indicators. Bolts are required in the manufacturing process of transportation equipment, and wrenches are needed for maintenance and repair of transportation equipment.

[0003] However, the wrenches in the existing market are less labor-saving during use. Railway tracks are laid outdoors and are prone to rusting after being exposed to wind, rain and sunlight for a long time, resulting in difficult removal of bolts. Ordinary wrenches require a large amount of force to remove them, which is time-consuming, laborious and has low efficiency.

[0004] Therefore, it is necessary to provide a wrench for labor-saving transportation to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides a wrench for labor-saving transportation, which solves the problems that the wrenches in the existing market are less labor-saving during use, railway tracks are laid outdoors and are prone to rusting after being exposed to wind, rain and sunlight for a long time, resulting in difficult removal of bolts, and ordinary wrenches require a large amount of force to remove them, which is time-consuming, laborious and has low efficiency.

[0006] The utility model provides a wrench for labor-saving transportation, comprising: a fixed sleeve, a protective shell is fixedly installed at the bottom end of the fixed sleeve, a first gear is rotatably installed at the top inside the protective shell through a bearing, a second gear is meshed and connected to the outside of the first gear, the second gear is rotatably installed with respect to the protective shell, a bottom cover is fixedly installed at the bottom of the protective shell through screws, an installation groove is formed at the bottom of the bottom cover, a first connecting shaft is fixedly installed at the center point of the bottom of the second gear, the bottom end of the first connecting shaft penetrates through the bottom cover and extends into the installation groove, a bolt sleeve is keyed to the outside of the first connecting shaft, a first connecting groove adapted to the first connecting shaft is formed at the top of the bolt sleeve, and a magnetic attraction block is fixedly installed inside the first connecting groove.

[0007] Preferably, a transmission shaft is rotatably installed inside the fixed sleeve, and the bottom end of the transmission shaft is fixedly installed with the top of the first gear.

[0008] Preferably, a second connecting shaft is fixedly installed at the top of the transmission shaft, and a ratchet wheel is keyed to the outside of the second connecting shaft.

[0009] Preferably, a second connection groove adapted to the second connection shaft is provided at the bottom of the ratchet wheel.

[0010] Preferably, a housing is rotatably mounted on the top of the ratchet wheel through a bearing, and a handle is fixedly mounted on one side of the outside of the housing.

[0011] Preferably, a resisting block is rotatably mounted on the inner side wall of the housing, and the number of the resisting blocks is two. A spring is fixedly mounted on the outside of each of the two resisting blocks, and one end of each of the two springs is fixedly mounted on the housing.

[0012] Compared with the related art, a labor-saving wrench for transportation provided by the present utility model has the following beneficial effects:

[0013] Align the bolt sleeve with the bolt for installing the transportation equipment. Drive the second gear to rotate by rotating the first gear, so that the bolt sleeve rotates, and then effectively drive the bolt for installing the transportation equipment to rotate. Moreover, since the second gear is larger than the first gear, the wrench has the function of saving labor, and even female employees can remove the bolt. When the bolt sleeve is damaged or a bolt sleeve of a different size needs to be replaced, pull the bolt sleeve outwards to separate the first connection shaft from the bolt sleeve. Align the new bolt sleeve with the first connection shaft. Due to the arrangement of the magnetic attraction blocks, the bolt sleeve is fixed to the first connection shaft. This structure is simple, facilitating the replacement of the bolt sleeve and improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a preferred embodiment of a labor-saving wrench for transportation provided by the present utility model;

[0015] Figure 2 is Figure 1 the schematic structural diagram of the bottom cover installation shown;

[0016] Figure 3 is Figure 1 the schematic structural diagram of the bolt sleeve installation shown;

[0017] Figure 4 is Figure 1 the schematic structural diagram of the ratchet wheel installation shown.

[0018] In the figure: 1, fixed sleeve; 2, protective shell; 3, first gear; 4, second gear; 5, bottom cover; 6, installation groove; 7, first connection shaft; 8, bolt sleeve; 9, first connection groove; 10, magnetic attraction block; 11, transmission shaft; 12, second connection shaft; 13, ratchet wheel; 14, second connection groove; 15, housing; 16, handle; 17, resisting block; 18, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , where Figure 1 is a schematic structural diagram of a preferred embodiment of a labor-saving wrench for transportation provided by the present utility model; Figure 2 is Figure 1 the schematic structural diagram of the bottom cover installation shown; Figure 3 is Figure 1 the schematic structural diagram of the bolt sleeve installation shown; Figure 4 is Figure 1 the schematic structural diagram of the ratchet installation shown. A labor-saving wrench for transportation includes: a fixed sleeve 1. A protective shell 2 is fixedly installed at the bottom end of the fixed sleeve 1. A first gear 3 is rotatably installed at the top inside the protective shell 2 through a bearing. A second gear 4 is meshed and connected to the outside of the first gear 3. The second gear 4 is rotatably installed with the protective shell 2. The bottom of the protective shell 2 is fixedly installed with a bottom cover 5 through screws. An installation groove 6 is opened at the bottom of the bottom cover 5. A first connecting shaft 7 is fixedly installed at the center point of the bottom of the second gear 4. The bottom end of the first connecting shaft 7 penetrates through the bottom cover 5 and extends into the installation groove 6. A bolt sleeve 8 is keyway-connected to the outside of the first connecting shaft 7. A first connecting groove 9 adapted to the first connecting shaft 7 is opened at the top of the bolt sleeve 8. A magnetic attraction block 10 is fixedly installed inside the first connecting groove 9. The bolt sleeve 8 is attached to the bolt for installing the transportation equipment. By rotating the first gear 3 to drive the second gear 4 to rotate, the bolt sleeve 8 is rotated, thereby effectively driving the bolt for installing the transportation equipment to rotate. Moreover, the second gear 4 is larger than the first gear 3, enabling the wrench to have a labor-saving function. Even female employees can remove the bolt. When the bolt sleeve 8 is damaged or a bolt sleeve 8 of a different size needs to be replaced, the bolt sleeve 8 is pulled outwards, and the first connecting shaft 7 is separated from the bolt sleeve 8. The new bolt sleeve 8 is aligned with the first connecting shaft 7. Due to the setting of the magnetic attraction block 10, the bolt sleeve 8 is fixed to the first connecting shaft 7. This structure is simple, facilitating the replacement of the bolt sleeve 8 and improving the practicability.

[0021] A transmission shaft 11 is rotatably installed inside the fixed sleeve 1. The bottom end of the transmission shaft 11 is fixedly installed with the top of the first gear 3. The rotation of the transmission shaft 11 effectively drives the first gear 3 to rotate.

[0022] A second connecting shaft 12 is fixedly installed at the top of the transmission shaft 11. A ratchet wheel 13 is connected to the external keyway of the second connecting shaft 12. A second connecting groove 14 adapted to the second connecting shaft 12 is provided at the bottom of the ratchet wheel 13. A housing 15 is rotatably installed at the top of the ratchet wheel 13 through a bearing. A handle 16 is fixedly installed on one side of the external portion of the housing 15. A blocking block 17 is rotatably installed on the inner side wall of the housing 15, and the number of the blocking blocks 17 is two. Springs 18 are fixedly installed on the external side of each of the two blocking blocks 17. One end of each of the two springs 18 is fixedly installed with the housing 15. When holding the handle 16 to drive the housing 15 to rotate, due to the arrangement of the blocking block 17, the ratchet wheel 13 cannot rotate during forward rotation, so that the ratchet wheel 13 drives the transmission shaft 11 to rotate. During reverse rotation, the blocking block 17 rotates and the spring 18 is compressed, and rotation occurs between the ratchet wheel 13 and the housing 15. At this time, the transmission shaft 11 does not rotate. This structure is simple and is convenient to use in a complex environment, avoiding the handle 16 being blocked during rotation, and improving the disassembly or installation efficiency.

[0023] The working principle of a transportation labor-saving wrench provided by the present utility model is as follows:

[0024] The first step: Fit the bolt sleeve 8 with the bolt installed on the transportation equipment. Hold the handle 16 to drive the housing 15 to rotate. Due to the arrangement of the blocking block 17, the ratchet wheel 13 cannot rotate during forward rotation, so that the ratchet wheel 13 drives the transmission shaft 11 to rotate. During reverse rotation, the blocking block 17 rotates and the spring 18 is compressed, and rotation occurs between the ratchet wheel 13 and the housing 15. At this time, the transmission shaft 11 does not rotate. This structure is simple and is convenient to use in a complex environment, avoiding the handle 16 being blocked during rotation, and improving the disassembly or installation efficiency. The rotation of the transmission shaft 11 effectively drives the first gear 3 to rotate.

[0025] The second step: Drive the second gear 4 to rotate by the rotation of the first gear 3, so that the bolt sleeve 8 rotates, and then effectively drive the bolt installed on the transportation equipment to rotate. And the second gear 4 is larger than the first gear 3, so that the wrench has the function of saving labor. Even female employees can remove the bolt. When the bolt sleeve 8 is damaged or a bolt sleeve 8 of a different size needs to be replaced, pull the bolt sleeve 8 outwards, and the first connecting shaft 7 is separated from the bolt sleeve 8. Align the new bolt sleeve 8 with the first connecting shaft 7. Due to the arrangement of the magnetic attraction block 10, the bolt sleeve 8 is fixed to the first connecting shaft 7. This structure is simple and is convenient to replace the bolt sleeve 8, improving the practicability.

[0026] Compared with the related technology, a transportation labor-saving wrench provided by the present utility model has the following beneficial effects:

[0027] Fit the bolt sleeve 8 to the bolt for installing the transportation equipment. Rotate the second gear 4 by driving the first gear 3 to rotate, so that the bolt sleeve 8 rotates, and then effectively drive the bolt for installing the transportation equipment to rotate. Moreover, since the second gear 4 is larger than the first gear 3, the wrench has the function of saving effort, and even female employees can remove the bolt. When the bolt sleeve 8 is damaged or a bolt sleeve 8 of a different size needs to be replaced, pull the bolt sleeve 8 outwards, and the first connecting shaft 7 is separated from the bolt sleeve 8. Align the new bolt sleeve 8 with the first connecting shaft 7. Due to the setting of the magnetic attraction block 10, the bolt sleeve 8 is fixed to the first connecting shaft 7. This structure is simple, facilitating the replacement of the bolt sleeve 8 and improving the practicability.

[0028] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A transportation-saving wrench, comprising: Fixed sleeve (1), characterized in that: a protective case (2) is fixedly installed at the bottom end of the fixed sleeve (1), a first gear (3) is rotatably installed at the top inside the protective case (2) through a bearing, a second gear (4) is meshed and connected to the outside of the first gear (3), the second gear (4) is rotatably installed with respect to the protective case (2), a bottom cover (5) is fixedly installed at the bottom of the protective case (2) by screws, an installation groove (6) is formed at the bottom of the bottom cover (5), a first connecting shaft (7) is fixedly installed at the center point of the bottom of the second gear (4), the bottom end of the first connecting shaft (7) penetrates through the bottom cover (5) and extends into the interior of the installation groove (6), a bolt sleeve (8) is keyway-connected to the outside of the first connecting shaft (7), a first connecting groove (9) adapted to the first connecting shaft (7) is formed at the top of the bolt sleeve (8), and a magnetic attraction block (10) is fixedly installed inside the first connecting groove (9).

2. The labor-saving wrench for transportation according to claim 1, wherein A transmission shaft (11) is rotatably installed inside the fixed sleeve (1), and the bottom end of the transmission shaft (11) is fixedly installed with the top of the first gear (3).

3. The labor-saving wrench for transportation according to claim 2, wherein A second connecting shaft (12) is fixedly installed at the top of the transmission shaft (11), and a ratchet wheel (13) is keyway-connected to the outside of the second connecting shaft (12).

4. The labor-saving wrench for transportation according to claim 3, characterized in that, A second connecting groove (14) adapted to the second connecting shaft (12) is formed at the bottom of the ratchet wheel (13).

5. The labor-saving wrench for transportation according to claim 4, wherein A housing (15) is rotatably installed at the top of the ratchet wheel (13) through a bearing, and a handle (16) is fixedly installed on one side of the outside of the housing (15).

6. The labor-saving wrench for transportation according to claim 5, characterized in that, A resisting block (17) is rotatably installed on the inner side wall of the housing (15), and the number of the resisting blocks (17) is two. A spring (18) is fixedly installed on the outside of each of the two resisting blocks (17), and one end of each of the two springs (18) is fixedly installed with the housing (15).

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