Ratchet wrench with extension sleeve

Abstract

The utility model discloses a kind of ratchet wrench with expansion sleeve, it includes a handle, the left and right ends of handle are hinged with a ratchet head, two ratchet heads are fixed with a ratchet wheel in it;It further includes two expansion sleeves, ratchet wheel has through hole that is through and is inserted for expansion sleeve, expansion sleeve outer wall and ratchet wheel inner wall between installation have a snap spring, expansion sleeve outer wall has multiple snap groove distributed along circumference, and snap groove is inserted for snap spring.The utility model is set up expansion sleeve, cooperate the structural design of snap spring and snap groove, so that expansion sleeve can be stably installed in ratchet wheel, user can replace different specifications of expansion sleeve according to actual needs, to realize the operation to multiple specifications bolt and nut, greatly expand the use range of ratchet wrench, avoid the trouble of frequently replacing entire ratchet wrench due to bolt or nut specifications are different, improve the versatility and practicality of tool.

Description

Technical Field

[0001] This utility model relates to a ratchet wrench, specifically a ratchet wrench with an extension sleeve. Background Technology

[0002] In existing mechanical repair and assembly work, ratchet wrenches are a commonly used tool. Thanks to the unidirectional rotation characteristic of the ratchet mechanism, they can quickly tighten and loosen bolts or nuts in relatively confined spaces, greatly improving work efficiency. However, traditional ratchet wrenches have relatively limited functionality, and their ratchet head specifications are usually fixed. This means that in actual use, when encountering different sizes of bolts or nuts, it is necessary to frequently change ratchet wrenches of different specifications. This not only increases the burden of carrying tools but also requires time to find and change suitable wrenches during operation, reducing work efficiency. Furthermore, traditional ratchet wrenches are often not directly compatible with some special specifications or non-standard sizes of bolts and nuts, further limiting their application range and flexibility. Therefore, developing a ratchet wrench that can adapt to various bolt and nut specifications and is easy to use is of significant practical importance. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a ratchet wrench with an extension sleeve.

[0004] The technical solution of this utility model is: a ratchet wrench with an extension sleeve, which includes a handle, and a ratchet head is hinged to both the left and right ends of the handle, and a ratchet is fixed inside each of the two ratchet heads;

[0005] It also includes two extension sleeves. The ratchet has a through hole that runs vertically through the ratchet for the extension sleeve to be inserted into. A retaining spring is installed between the outer wall of the extension sleeve and the inner wall of the ratchet. The outer wall of the extension sleeve has multiple circumferentially distributed slots for the retaining spring to be engaged.

[0006] Furthermore, each end of the handle has a connecting seat, and each end of the two ratchet heads has a movable head, which is hinged to the connecting seat via a pin.

[0007] Furthermore, the inner wall of the ratchet has a groove for the retaining ring to engage.

[0008] Furthermore, the extension sleeve has an internal hexagonal hole that runs through both the top and bottom.

[0009] Furthermore, one end of the extension sleeve has a flange that protrudes outside the through hole and presses against one end face of the ratchet.

[0010] The advantages of using the ratchet wrench with an extension sleeve provided by this utility model are as follows: By setting the extension sleeve, in conjunction with the structural design of the retaining spring and retaining groove, the extension sleeve can be securely installed inside the ratchet. Users can replace the extension sleeve with different specifications according to actual needs, thereby realizing the operation of bolts and nuts of various specifications. This greatly expands the application range of the ratchet wrench, avoids the trouble of frequently replacing the entire ratchet wrench due to different bolt or nut specifications, and improves the versatility and practicality of the tool. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is an exploded view of the present invention.

[0013] As shown in the figure: 1—handle, 11—connecting seat, 2—ratchet head, 21—moving head, 3—ratchet, 31—through hole, 32—groove, 4—extension sleeve, 41—slot, 42—flanged edge, 5—spring clip, 6—pin. Detailed Implementation

[0014] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0015] like Figure 1 , Figure 2 As shown, a ratchet wrench with an extension sleeve includes a handle 1 and two extension sleeves 4. A ratchet head 2 is hinged to both ends of the handle 1. A ratchet 3 is fixed inside each ratchet head 2. The ratchet 3 has a through hole 31 that passes through from top to bottom and allows the extension sleeve 4 to be inserted. A retaining spring 5 is installed between the outer wall of the extension sleeve 4 and the inner wall of the ratchet 3. The outer wall of the extension sleeve 4 has multiple circumferentially distributed grooves 41 for the retaining spring 5 to be engaged.

[0016] To facilitate adjustment of the angle of the ratchet head 2, each end of the handle 1 has a connecting seat 11, and each end of the two ratchet heads 2 has a movable head 21. The movable head 21 is hinged to the connecting seat 11 via a pin 6.

[0017] like Figure 2 As shown, the inner wall of the ratchet 3 has a groove 32 for the retaining ring to engage. The retaining spring 5 is engaged between the ratchet 3 and the extension sleeve 4 to prevent the extension sleeve 4 from falling off.

[0018] like Figure 2 As shown, the extension sleeve 4 has an internal hexagonal hole that runs through the top and bottom.

[0019] One end of the extension sleeve 4 has a flange 42, which is exposed outside the through hole 31 and pressed against one end face of the ratchet 3.

[0020] The ratchet wrench with an extension sleeve provided by this utility model, through the structural design of the extension sleeve 4, combined with the retaining spring 5 and the retaining groove 41, allows the extension sleeve 4 to be securely installed inside the ratchet 3. Users can replace the extension sleeve 4 with different specifications according to actual needs, thereby realizing the operation of bolts and nuts of various specifications, greatly expanding the application range of the ratchet wrench, avoiding the trouble of frequently replacing the entire ratchet wrench due to different bolt or nut specifications, and improving the versatility and practicality of the tool.

[0021] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A ratchet wrench with an extension sleeve, comprising a handle, characterized in that: A ratchet head is hinged to both ends of the handle, and a ratchet is fixed inside each ratchet head; It also includes two extension sleeves. The ratchet has a through hole that runs vertically through the ratchet for the extension sleeve to be inserted into. A retaining spring is installed between the outer wall of the extension sleeve and the inner wall of the ratchet. The outer wall of the extension sleeve has multiple circumferentially distributed slots for the retaining spring to be engaged.

2. The ratchet wrench with an extension sleeve according to claim 1, characterized in that: The handle has a connecting seat at both ends, and each of the two ratchet heads has a movable head at one end, which is hinged to the connecting seat by a pin.

3. The ratchet wrench with an extension sleeve according to claim 1, characterized in that: The ratchet has a groove on its inner wall for the snap ring to engage.

4. The ratchet wrench with an extension sleeve according to claim 1, characterized in that: The extension sleeve has a through-hole internal hexagonal hole.

5. The ratchet wrench with an extension sleeve according to claim 1, characterized in that: One end of the extension sleeve has a flange that protrudes outside the through hole and presses against one end face of the ratchet.

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