Adjustable sleeve tool

Abstract

The embodiment of the utility model provides an adjustable sleeve tool which comprises an outer sleeve, a clamping jaw mechanism used for clamping is arranged in the outer sleeve, the clamping jaw mechanism comprises an inner sleeve, a plurality of clamping jaws are installed at the bottom end of the inner sleeve, a clamping jaw opening mechanism is installed in the inner sleeve, and the clamping jaw opening mechanism is used for opening the clamping jaws. The outer wall of the inner sleeve is in threaded fit with the inner wall of the outer sleeve, the outer sleeve can move in the axial direction of the inner sleeve by rotating the outer sleeve, the outer sleeve pushes the clamping jaws to be folded and clamped when moving downwards in the axial direction of the inner sleeve, and the clamping jaw opening mechanism is used for pushing the clamping jaws to be opened when the outer sleeve moves upwards in the axial direction of the inner sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical tool technology, and in particular relates to an adjustable sleeve tool. Background Technology

[0002] In mechanical maintenance, construction, and various industrial production activities, it is frequently necessary to disassemble bolts of various sizes. Traditional socket wrenches are often only suitable for specific or a limited number of bolt sizes. When faced with a large number of bolts of different sizes, frequent socket changes are required, making the operation cumbersome and inefficient. Furthermore, for bolts in confined spaces, at unusual angles, or that are rusted or damaged, ordinary socket tools are difficult to use effectively, failing to provide sufficient torque and prone to slippage. For example, during the installation or removal of wind turbine blades, the fixing bolts at the blade root may lack internal hexagonal sockets for installation and removal. Ordinary socket tools are ineffective in this regard, posing significant challenges to the installation and removal of wind turbine blades. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide an adjustable sleeve tool.

[0004] The technical solution adopted in this embodiment of the utility model is an adjustable sleeve tool, including an outer sleeve. The inner structure of the outer sleeve has a clamping jaw mechanism for gripping. The clamping jaw mechanism includes an inner sleeve. Multiple jaws are installed at the bottom end of the inner sleeve. A jaw opening mechanism is installed inside the inner sleeve. The outer wall of the inner sleeve is threadedly engaged with the inner wall of the outer sleeve. Rotating the outer sleeve can cause the outer sleeve to move axially along the inner sleeve. When the outer sleeve moves downward along the axial direction of the inner sleeve, it pushes the jaws to close and clamp. The jaw opening mechanism is used to push the jaws to open when the outer sleeve moves upward along the axial direction of the inner sleeve.

[0005] Furthermore, the bottom end of the inner sleeve wall is provided with multiple notches for placing grippers. The grippers and notches correspond one-to-one. The top of the grippers is placed in the notch. Track grooves are provided on both sides of the notch. The track grooves are set parallel to the end face of the inner sleeve. The top of the grippers is fixedly connected to protrusions that match the track grooves on both sides.

[0006] Furthermore, the gripper opening mechanism includes a spring cover and a spring. The spring cover is placed inside the inner sleeve, and the bottom of the spring cover contacts the side of the top of all grippers near the central axis of the inner sleeve. The spring is installed above the spring cover inside the inner sleeve, and the spring applies force to the spring cover.

[0007] Furthermore, the spring cover is a cylindrical shape with a closed bottom, the bottom edge of the spring cover is arc-shaped, and the side of the top of the gripper near the central axis of the inner sleeve is arc-shaped.

[0008] Furthermore, the outer sleeve includes a thin section and a thick section, and a transition section is provided between the thin section and the thick section. The two ends of the transition section are fixedly connected to the thin section and the thick section, respectively. The inner wall of the thin section of the outer sleeve is provided with threads to engage with the outer wall threads of the inner sleeve. The transition section is trumpet-shaped, and the side of the top of the clamp away from the central axis of the inner sleeve contacts the inner wall of the transition section of the outer sleeve.

[0009] Furthermore, the side of the top of the gripper away from the central axis of the inner sleeve is constructed as an inclined surface, which is parallel to the inner wall of the transition section of the outer sleeve.

[0010] Furthermore, an operating connection part is fixedly connected to the top end of the inner sleeve.

[0011] Furthermore, the operating connection part is constructed as an equilateral hexagonal column, and a square hole is provided at the center of the top of the operating connection part.

[0012] Furthermore, the outer surface of the outer sleeve is engraved with an anti-slip texture.

[0013] Compared with the prior art, the adjustable socket tool proposed in this utility model can adapt to bolts of various specifications through an adjustable gripper mechanism, eliminating the need for frequent socket replacement and greatly improving the efficiency of disassembly work.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0015] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0016] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a structural schematic diagram of the gripper in the open state according to an embodiment of the present invention.

[0019] Figure 3This is a structural schematic diagram of the clamping state of the gripper in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the inner sleeve structure of an embodiment of the present utility model.

[0021] Figure 5 This is a schematic diagram of the opening and closing action of the gripper in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0025] See Figures 1 to 5This utility model provides an adjustable socket tool, including an outer sleeve 1. The outer sleeve 1 has an internal clamping mechanism, which includes an inner sleeve 2. Multiple clamping jaws 3 are mounted on the bottom end of the inner sleeve 2. A clamping jaw opening mechanism is installed inside the inner sleeve 2. The outer wall of the inner sleeve 2 is threadedly engaged with the inner wall of the outer sleeve 1. Rotating the outer sleeve 1 allows it to move axially along the inner sleeve 2. When the outer sleeve 1 moves downward along the inner sleeve 2, it pushes the clamping jaws 3 to close and clamp. The clamping jaw opening mechanism pushes the clamping jaws 3 to open when the outer sleeve 1 moves upward along the inner sleeve 2. This technical solution, through its adjustable clamping mechanism, can accommodate bolts of various sizes, eliminating the need for frequent sleeve changes and greatly improving the efficiency of disassembly work.

[0026] The number of clamps 3 is at least three sets, and they are evenly distributed in the circumferential direction inside the inner sleeve 2 to ensure the uniformity and stability of clamping the bolt head.

[0027] The inner sleeve 2 has multiple notches 21 at its bottom wall for placing grippers 3. Each gripper 3 corresponds to one notch 21, with the top of the gripper 3 positioned within the notch 21. Track grooves 22 are formed on the side walls of each notch 21, parallel to the end face of the inner sleeve 2. Protrusions 31, matching the track grooves 22, are fixedly connected to the top of each gripper 3 on both sides. The grippers 3 open or close by translation. When the grippers 3 open or close, the notches 21 and the protrusions 31 on both sides of the top of the gripper 3 engage to allow the gripper 3 to translate radially within the inner sleeve 2.

[0028] See Figure 5 The gripper opening mechanism includes a spring cover 4 and a spring 5. The spring cover 4 is placed inside the inner sleeve 2, and its bottom contacts the side of the tips of all grippers 3 closest to the central axis of the inner sleeve 2. The spring 5 is installed above the spring cover 4 inside the inner sleeve 2, and the spring 5 applies force to the spring cover 4. During the clamping process of the grippers 3, the tips of the grippers 3 move upward against the spring cover 4, while the spring 5 contracts to accumulate elastic potential energy. During the opening process of the grippers 3, the spring cover 4 presses against the tips of the grippers 3, and the spring 5 releases the accumulated elastic potential energy to push the spring cover 4 downward. Simultaneously, the spring cover 4 applies a radial force to the grippers 3, causing the grippers 3 to gradually open.

[0029] The spring constant of spring 5 is selected and designed according to the depth limiting force required by the sleeve and the interaction force with the gripper 3 to ensure stable depth limiting and anti-disengagement function under different working conditions.

[0030] In some embodiments, the outer surface of the outer sleeve 1 is provided with scale markings to indicate the opening degree or rotation position of the gripper 3, so that the user can quickly and accurately adjust the gripper 3 to a suitable state to fit the bolt.

[0031] The spring cover 4 is a cylindrical shape with a closed bottom. The bottom edge of the spring cover 4 is arc-shaped, and the side of the top of the gripper 3 near the central axis of the inner sleeve 2 is arc-shaped. The arc-shaped bottom edge of the spring cover 4 and the arc-shaped top surface of the gripper 3 cooperate with each other, so that the spring cover 4 and the gripper 3 can be smoothly engaged when the gripper 3 is open or closed.

[0032] The outer sleeve 1 includes a thin section 11 and a thick section 12, with a transition section 13 between them. The two ends of the transition section 13 are fixedly connected to the thin section 11 and the thick section 12, respectively. The inner wall of the thin section 11 of the outer sleeve 1 is threaded to engage with the outer wall of the inner sleeve 2. The transition section 13 is trumpet-shaped, and the side of the jaw 3 furthest from the central axis of the inner sleeve 2 contacts the inner wall of the transition section 13 of the outer sleeve 1. During clamping, rotating the outer sleeve 1 causes it to move downwards, while the thin end of the transition section 13 pushes against the top of the jaw 3, causing it to continue moving downwards and allowing the jaw 3 to move along the track groove 22 towards the central axis of the inner sleeve 2. Conversely, rotating the outer sleeve 1 causes it to move upwards, while the thin end of the transition section 13 moves upwards and no longer pushes against the top of the jaw 3. Under the action of the jaw opening mechanism, the jaw 3 moves along the track groove 22 away from the central axis of the inner sleeve 2. The side of the top of the gripper 3 away from the central axis of the inner sleeve 2 is constructed as an inclined surface, which is parallel to the inner wall of the transition section 13 of the outer sleeve 1.

[0033] An operating connection 23 is fixedly connected to the top end of the inner sleeve 2. The operating connection 23 is used to connect a driving tool. An external driving tool (such as an electric wrench or a manual ratchet wrench) is connected, and when the driving tool applies torque, it outputs torque to the sleeve body, so as to provide sufficient rotational force when removing bolts.

[0034] Specifically, the operation connection part 23 is constructed as an equilateral hexagonal column, and a square hole 231 is provided at the top center of the operation connection part 23.

[0035] The outer surface of the outer sleeve 1 is engraved with an anti-slip texture. The anti-slip texture improves the friction and comfort when the user holds the device.

[0036] In terms of usage, when installing bolts, rotate the outer sleeve 1 along the thread direction of the inner sleeve 2 to increase the limit of the clamp 3, allowing the clamp 3 to open wide enough to fit the bolt hole. After placing the sleeve on the bolt, rotate the outer sleeve 1 in the opposite direction to close the clamp 3 until it fits tightly against the bolt. At the same time, the clamp 3 presses the spring cover 4 and spring 5 back to the bottom of the sleeve. Then, apply torque through the external drive tool connected to the operating connection part 23 on the top of the sleeve or the square hole 231 to complete the installation. When removing bolts, the operation is similar to the installation. After placing the sleeve on the bolt, apply reverse torque through the external drive tool connected to the operating connection part 23 on the top of the sleeve or the square hole 231. After the installation or removal task is completed, rotate the outer sleeve 1 again to increase the limit of the clamp 3. The spring 5 releases its elastic potential energy to push the spring cover 4 to apply radial force to the clamp 3, causing the clamp 3 to open so that the sleeve tool can be removed.

[0037] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. An adjustable sleeve tool, comprising an outer sleeve (1), characterized in that, The outer sleeve (1) has an internal structure with a gripper mechanism for clamping. The gripper mechanism includes an inner sleeve (2). Multiple grippers (3) are installed at the bottom end of the inner sleeve (2). A gripper opening mechanism is installed inside the inner sleeve (2). The outer wall of the inner sleeve (2) is threadedly engaged with the inner wall of the outer sleeve (1). Rotating the outer sleeve (1) can cause the outer sleeve (1) to move axially along the inner sleeve (2). When the outer sleeve (1) moves downward along the inner sleeve (2), it pushes the grippers (3) to close and clamp. The gripper opening mechanism is used to push the grippers (3) to open when the outer sleeve (1) moves upward along the inner sleeve (2).

2. The adjustable sleeve tool according to claim 1, characterized in that, The inner sleeve (2) has multiple notches (21) at the bottom of its cylinder wall for placing grippers (3). The grippers (3) and notches (21) correspond one-to-one. The top of the grippers (3) is placed in the notches (21). Track grooves (22) are provided on the two side walls of the notches (21). The track grooves (22) are set parallel to the end face of the inner sleeve (2). The top of the grippers (3) is fixedly connected to protrusions (31) that cooperate with the track grooves (22).

3. An adjustable sleeve tool according to claim 2, characterized in that, The gripper opening mechanism includes a spring cover (4) and a spring (5). The spring cover (4) is placed inside the inner sleeve (2), and the bottom of the spring cover (4) contacts the side of the top of all grippers (3) near the central axis of the inner sleeve (2). The spring (5) is installed above the spring cover (4) inside the inner sleeve (2), and the spring (5) exerts force on the spring cover (4).

4. An adjustable sleeve tool according to claim 3, characterized in that, The spring cover (4) is a cylindrical shape with a closed bottom. The bottom edge of the spring cover (4) is arc-shaped, and the side of the top of the gripper (3) near the central axis of the inner sleeve (2) is arc-shaped.

5. An adjustable sleeve tool according to claim 3, characterized in that, The outer sleeve (1) includes a thin section (11) and a thick section (12). A transition section (13) is provided between the thin section (11) and the thick section (12). The two ends of the transition section (13) are fixedly connected to the thin section (11) and the thick section (12), respectively. The inner wall of the thin section (11) of the outer sleeve (1) is provided with threads to engage with the outer wall threads of the inner sleeve (2). The transition section (13) is trumpet-shaped. The side of the top of the clamp (3) away from the central axis of the inner sleeve (2) contacts the inner wall of the transition section (13) of the outer sleeve (1).

6. An adjustable sleeve tool according to claim 5, characterized in that, The side of the top of the gripper (3) away from the central axis of the inner sleeve (2) is constructed as an inclined surface, which is parallel to the inner wall of the transition section (13) of the outer sleeve (1).

7. An adjustable sleeve tool according to claim 1, characterized in that, The top end of the inner sleeve (2) is fixedly connected to an operating connection part (23).

8. An adjustable sleeve tool according to claim 7, characterized in that, The operation connection part (23) is constructed as an equilateral hexagonal column, and a square hole (231) is provided at the top center of the operation connection part (23).

9. An adjustable sleeve tool according to claim 1, characterized in that, The outer surface of the outer sleeve (1) is engraved with anti-slip texture.

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