A new type of adjustable wrench

Abstract

This utility model discloses a novel adjustable wrench, relating to the field of wrench technology. Its key technical features include a wrench handle; a wrench head mechanism fixedly connected to the upper end of the wrench handle; an anti-slip rubber sleeve bonded to the lower circumference of the wrench handle with epoxy resin adhesive; an adjusting contact mechanism threadedly connected to the inner side of the outer end of the wrench head mechanism; and a tightening contact mechanism threadedly connected to the inner end of the adjusting contact mechanism. This utility model, by setting up the adjustment contact mechanism in cooperation with the wrench head mechanism and utilizing the threaded connection between a metal screw and the assembly sleeve, can precisely adjust the width of the wrench cavity, eliminating the need for multiple fixed-size wrenches and significantly improving the adaptability of the device.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, specifically a novel adjustable wrench. Background Technology

[0002] A wrench is a common tool for installation and disassembly. It is a hand tool that uses the lever principle to tighten or loosen bolts, screws, nuts and other threaded fasteners. Wrenches are usually made of structural steel made of carbon or alloy materials.

[0003] The existing Chinese patent CN218428041U, published on February 3, 2023, discloses a wrench, including: a handle portion; a wrench head connected to the handle portion, the wrench head having a through hole; and multiple slots formed on the wrench head, the slots communicating with the through hole, the multiple slots being arranged sequentially along the circumference of the through hole; wherein, the included angle between two adjacent slots along the circumference of the through hole is less than 30°.

[0004] However, when using the above device, the corresponding nut is simply installed through the through hole in the wrench head. The wrench head lacks a corresponding adjustment mechanism, which means that it cannot be adjusted according to the needs of use.

[0005] Therefore, we propose a novel adjustable wrench to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a novel adjustable wrench, which solves the problem that the aforementioned devices only allow for the connection and installation of corresponding nuts through the through hole in the wrench head, and the wrench head lacks a corresponding adjustment mechanism, thus preventing the wrench from being adjusted according to usage needs.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a novel adjustable wrench, characterized in that it comprises:

[0010] Wrench handle;

[0011] A wrench head mechanism, which is fixedly connected to the upper end of the wrench handle;

[0012] Anti-slip rubber sleeve, which is bonded and fixed to the lower circumference of the wrench handle by epoxy resin adhesive;

[0013] An adjusting engagement mechanism is threadedly connected to the inner side of the outer end of the wrench head mechanism;

[0014] A tensioning and loosening contact mechanism is threadedly connected to the inner end of an adjusting contact mechanism.

[0015] Preferably, the wrench handle includes a wrench body, a bottom rod is fixedly connected to the middle of the lower end of the wrench body, and an anti-slip rubber sleeve is bonded and fixed to the periphery of the wrench body by epoxy resin adhesive.

[0016] Preferably, the wrench head mechanism includes an L-shaped wrench head, the lower end of which is fixedly connected to a connecting end block, the lower end of which is welded and fixed to the wrench shaft, an outer stop block is fixedly connected to the middle of the outer end of the connecting end block, a wrench sleeve cavity is formed between the outer stop block and the L-shaped wrench head, and an assembly threaded sleeve is formed inside the outer stop block.

[0017] Preferably, the adjusting abutment mechanism includes a metal screw, with two outer handles symmetrically fixed to the lower outer wall of the metal screw, and a connecting assembly fixed to the upper end of the metal screw. The metal screw is threadedly connected to the assembly sleeve of the outer stop block.

[0018] Preferably, the connecting assembly includes a fixed end plate, which is welded and fixed to a metal screw, and an assembly screw hole is provided in the center of the interior of the fixed end plate.

[0019] Preferably, the tensioning and loosening contact mechanism includes a contact disc, an assembly screw head is welded and fixed to the middle of the lower end of the contact disc, and multiple contact springs are movably installed on the inner side of the upper end of the contact disc. The upper ends of the multiple contact springs are movably installed on the contact disc with corresponding movable contact rods.

[0020] Preferably, the abutting disc is threadedly connected to the assembly screw hole of the fixed end disc via an assembly screw head.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides a novel adjustable wrench with the following advantages:

[0023] 1. This utility model, by setting up an adjustment contact mechanism and a wrench head mechanism in cooperation, and by using the threaded connection between the metal screw and the assembly screw sleeve, can accurately adjust the width of the wrench sleeve cavity, eliminating the need for multiple fixed-size wrenches and significantly improving the adaptability of the device.

[0024] 2. This utility model, by setting up a tensioning and loosening contact mechanism, utilizes a combination of multiple movable contact rods and contact springs to adaptively fit the shape of the fastener. The arc-shaped contact surface increases the contact area with the fastener, disperses clamping stress, avoids damage to the edges of the fastener, and can stably clamp even if there is slight deformation or dimensional deviation on the surface of the fastener, preventing slippage during tightening. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the wrench head mechanism and wrench handle structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the combined structure of the adjusting resistance mechanism and the tightening resistance mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the connecting component structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the tensioning and loosening contact mechanism of this utility model.

[0030] In the picture:

[0031] 1. Wrench handle; 11. Bottom handle; 2. Anti-slip rubber sleeve; 3. L-shaped wrench head; 31. Connecting end block; 32. Wrench sleeve cavity; 33. Outer stop block; 4. Contact disc; 41. Movable contact rod; 42. Contact spring; 43. Assembly screw head; 5. Metal screw; 51. Outer handle; 52. Fixed end plate; 53. Assembly screw hole; 6. Assembly screw sleeve. Detailed Implementation

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Example 1

[0034] This embodiment provides a technical solution: a novel adjustable wrench, such as... Figures 1-5 As shown, it includes a wrench handle, a wrench head mechanism, an anti-slip rubber sleeve 2, an adjusting contact mechanism, and a tightening contact mechanism.

[0035] like Figure 1 and Figure 2As shown, the wrench head mechanism is integrally fixed to the upper end of the wrench handle. The integral connection and fixation makes it less prone to damage and breakage. The wrench handle includes a wrench body 1, and a bottom rod 11 is integrally fixed to the middle of the lower end of the wrench body 1. The wrench body 1 and the bottom rod 11 are made of aluminum alloy, which has strength and is not easily damaged during operation. The periphery of the wrench body 1 is bonded with an anti-slip rubber sleeve 2 by epoxy resin. When the operator holds the anti-slip rubber sleeve 2 at the wrench body 1, it will not slip when gripping and operating, making it easy for the operator to hold and operate stably.

[0036] The anti-slip rubber sleeve 2 is bonded to the lower circumference of the wrench handle with epoxy resin adhesive, which can stably fix it in place and prevent it from loosening or falling off during use.

[0037] Example 2

[0038] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figures 1-4 As shown, to further better realize this utility model, the following configuration is specifically adopted: the adjusting contact mechanism is threadedly connected to the inner side of the outer end of the wrench head mechanism. The adjusting contact mechanism can rotate in both directions on the wrench head mechanism, and the clamping position can be adjusted as needed. The wrench head mechanism includes an L-shaped wrench head 3, which can be fastened to the outer side of the nut to be disassembled. The lower end of the L-shaped wrench head 3 is integrally fixed with a connecting end block 31. The integral connection between the L-shaped wrench head 3 and the connecting end block 31 makes it less likely to break or be damaged during use. The lower end of the connecting end block 31 is welded and fixed to the wrench rod body 1, which can be stably installed and fixed. An outer stop block 33 is fixedly connected to the middle of the outer end of the connecting end block 31. The connecting end block 31 can be blocked by the outer stop block 33. A wrench sleeve cavity 32 is opened between the outer stop block 33 and the L-shaped wrench head 3, which is convenient to be sleeved on the periphery of the nut. An assembly screw sleeve 6 is opened inside the outer stop block 33, which can be stably placed inside the outer stop block 33.

[0039] The adjusting contact mechanism includes a metal screw 5, which is threadedly connected to the assembly sleeve 6 of the outer stop 33. The metal screw 5 can move inward and outward by rotating in the forward and reverse directions. Two outer handles 51 are symmetrically fixed to the lower outer wall of the metal screw 5. The metal screw 5 is easy for personnel to hold and operate by means of the outer handles 51. A connecting component is fixed to the upper end of the metal screw 5. The position of the connecting component can be changed when the metal screw 5 moves inward and outward.

[0040] The connecting assembly includes a fixed end plate 52, which is welded and fixed to the metal screw 5 for stable installation. When the fixed end plate 52 changes position via the metal screw 5, the fitting area of ​​the wrench sleeve cavity 32 can be adjusted, allowing for corresponding adjustments as needed. An assembly screw hole 53 is provided in the middle of the interior of the fixed end plate 52 for easy installation.

[0041] Example 3

[0042] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, to further better realize this utility model, the following arrangement is specifically adopted: the tensioning and loosening contact mechanism is threadedly connected to the inner end of the adjusting contact mechanism. The threaded connection facilitates installation and disassembly. The tensioning and loosening contact mechanism includes a contact disc 4. An assembly screw head 43 is welded and fixed to the middle of the lower end of the contact disc 4. The contact disc 4 can be installed correspondingly through the assembly screw head 43. The contact disc 4 is threadedly connected to the assembly screw hole 53 of the fixed end plate 52 through the assembly screw head 43, and can be assembled and connected accordingly. The upper inner side of the contact disc 4 is movably mounted. Equipped with multiple abutment springs 42, the abutment disc 4 can elastically abut against the inner abutment springs 42. The upper ends of the multiple abutment springs 42 are movably mounted on the abutment disc 4 with corresponding movable abutment rods 41. The abutment springs 42 can elastically abut against the movable abutment rods 41 and contact the outside. It can adaptively fit according to the shape of the fastener. The arc-shaped contact surface increases the contact area with the fastener, disperses the clamping stress, and avoids damage to the edges of the fastener. Even if there is slight deformation or dimensional deviation on the surface of the fastener, it can be stably clamped and prevent slippage when tightening.

[0043] Working principle: When in use, the operator holds the anti-slip rubber sleeve 2 at the lower end of the wrench handle to prevent slippage during operation. The wrench handle body 1 and the bottom handle body 11 are made of aluminum alloy, which is strong and not easily damaged during operation. The anti-slip rubber sleeve 2 is glued to the periphery of the wrench handle body 1 with epoxy resin, which makes it easy for the operator to hold and operate stably.

[0044] During operation, the resistance can be adjusted via the adjusting contact mechanism on the wrench head. A connecting component is fixed to the upper end of the metal screw 5 of the adjusting contact mechanism. Moving the metal screw 5 inwards and outwards changes the position of the connecting component. When the fixed end plate 52 of the connecting component changes position via the metal screw 5, the fitting area of ​​the wrench sleeve cavity 32 can be adjusted, allowing for corresponding adjustments as needed. The contact disc 4 of the tightening and loosening contact mechanism is threaded into the assembly screw hole 53 of the fixed end plate 52 via an assembly screw head 43, enabling corresponding assembly and connection. The contact disc 4 provides elastic resistance via an inner contact spring 42, which in turn elastically resists the movable contact rod 41 in contact with the outside. It can adaptively fit the shape of the fastener. The arc-shaped contact surface increases the contact area with the fastener, dispersing clamping stress and preventing damage to the fastener's edges. Even with slight deformation or dimensional deviations on the fastener surface, it can maintain stable clamping and prevent slippage during tightening.

[0045] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A novel adjustable wrench, characterized in that, include: Wrench handle; A wrench head mechanism, which is fixedly connected to the upper end of the wrench handle; Anti-slip rubber sleeve (2), the anti-slip rubber sleeve (2) is bonded to the lower circumference of the wrench handle by epoxy resin adhesive; An adjusting engagement mechanism is threadedly connected to the inner side of the outer end of the wrench head mechanism; A tensioning and loosening contact mechanism is threadedly connected to the inner end of an adjusting contact mechanism.

2. The novel adjustable wrench according to claim 1, characterized in that: The wrench handle includes a wrench body (1), a bottom rod (11) is fixedly connected to the middle of the lower end of the wrench body (1), and an anti-slip rubber sleeve (2) is fixedly attached to the periphery of the wrench body (1) by epoxy resin adhesive.

3. The novel adjustable wrench according to claim 1, characterized in that: The wrench head mechanism includes an L-shaped wrench head (3), with a connecting end block (31) fixedly connected to the lower end of the L-shaped wrench head (3). The lower end of the connecting end block (31) is welded and fixed to the wrench rod body (1). An outer stop block (33) is fixedly connected to the middle of the outer end of the connecting end block (31). A wrench sleeve cavity (32) is opened between the outer stop block (33) and the L-shaped wrench head (3). An assembly threaded sleeve (6) is opened inside the outer stop block (33).

4. The novel adjustable wrench according to claim 1, characterized in that: The adjusting contact mechanism includes a metal screw (5), with two outer handles (51) symmetrically fixed to the lower outer wall of the metal screw (5), and a connecting component fixed to the upper end of the metal screw (5). The metal screw (5) is threadedly connected to the assembly sleeve (6) of the outer stop block (33).

5. A novel adjustable wrench according to claim 4, characterized in that: The connecting assembly includes a fixed end plate (52), which is welded and fixed to a metal screw (5). An assembly screw hole (53) is provided in the middle of the interior of the fixed end plate (52).

6. A novel adjustable wrench according to claim 1, characterized in that: The tensioning and loosening contact mechanism includes a contact disc (4), an assembly screw head (43) is welded and fixed at the middle of the lower end of the contact disc (4), and multiple contact springs (42) are movably installed on the inner side of the upper end of the contact disc (4). The upper ends of the multiple contact springs (42) are movably installed on the contact disc (4) with corresponding movable contact rods (41).

7. A novel adjustable wrench according to claim 6, characterized in that: The abutting disc (4) is threaded into the assembly screw hole (53) of the fixed end disc (52) by the assembly screw head (43).

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