A practical adjustable wrench with a vertical handle

Abstract

This utility model discloses a practical adjustable wrench with a vertical handle, comprising a wrench body and an extension sleeve. The wrench body includes a wrench head, a fixed jaw integrally connected to the top of the wrench head, a movable jaw slidably connected to the other side of the top of the wrench head, and a handle integrally connected to the bottom of the wrench head. The extension sleeve is fitted onto the outside of the handle and is threadedly connected to the handle. A detachable handle is installed at the bottom of the extension sleeve. A connecting rod is rotatably connected inside the handle. The bottom of the connecting rod passes through the bottom of the handle and has a knob fixed at its end. The top of the connecting rod is placed inside the wrench head. A transmission mechanism is provided between the connecting rod and the movable jaw. The operation logic of installing the extension sleeve after adjusting the opening avoids the inconvenience of carrying the entire long handle into a narrow space, which is a traditional tool, and significantly improves the flexibility of initial positioning. The threaded connection structure between the extension sleeve and the handle forms a rigid whole.

Description

Technical Field

[0001] This utility model belongs to the field of wrench technology, specifically relating to a practical adjustable wrench with a vertical handle. Background Technology

[0002] In equipment maintenance in industries such as petroleum, chemical, and power, adjustable wrenches are commonly used due to their flexibility, ease of use, wide applicability, and high reliability. However, various valves and pipe fittings are often densely packed, sometimes even stacked on top of each other. When it is necessary to remove nuts located on internal or lower valves, the operating space is often extremely narrow and deep. Using traditional adjustable wrenches for such operations presents significant challenges: Firstly, to insert the nut into the wrench opening, most of the wrench handle must be inserted into the narrow gap, resulting in an extremely short external gripping portion, making it difficult for the operator to effectively grasp and apply sufficient torque. Although existing technologies include solutions that increase the lever arm length by adding a telescopic extension handle, the connecting part of the telescopic arm is prone to breakage due to stress concentration under large forces, posing safety hazards and insufficient reliability. Operators are often forced to disassemble external equipment to make room, which greatly prolongs maintenance time and seriously affects production efficiency. Secondly, the adjusting worm gear mechanism of traditional adjustable wrenches is usually set on the fixed jaw side of the open end. When the wrench is inserted into the confined space and placed on the nut, it is difficult for the operator's hand to reach the adjusting wheel to make fine adjustments to the opening size. In addition, the obstructed view creates a blind spot, making it impossible to clearly observe the engagement and locking state of the jaw and the nut. It is often necessary to repeatedly pull out the wrench for adjustment and confirmation, which is a cumbersome and inefficient process.

[0003] Therefore, existing adjustable wrenches have inherent defects when dealing with nut assembly and disassembly tasks in dense and deep equipment environments, such as insufficient effective lever arm of the handle, potential breakage of the extended structure, poor spatial adaptability, inconvenient adjustment, and poor operation visibility. There is an urgent need for a new type of adjustable wrench structure that can overcome the above limitations. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a practical adjustable wrench with a vertical handle, comprising a wrench body and an extension sleeve. The wrench body includes a wrench head, a fixed jaw integrally connected to the top of the wrench head, a movable jaw slidably connected to the other side of the top of the wrench head, and a handle integrally connected to the bottom of the wrench head. The extension sleeve is fitted onto the outside of the handle and is threadedly connected to the handle. A detachable handle is installed at the bottom end of the extension sleeve. A connecting rod is rotatably connected inside the handle. The bottom of the connecting rod passes through the bottom end of the handle and a knob is fixed at the end. The top of the connecting rod is placed inside the wrench head. A transmission mechanism is provided between the connecting rod and the movable jaw.

[0005] As a preferred embodiment of this utility model, the knob is placed inside the extension sleeve and does not contact the inner wall of the extension sleeve.

[0006] As a preferred embodiment of this utility model, the bottom end of the extension sleeve is provided with a through hole, and the handle passes through the through hole.

[0007] As a preferred technical solution of this utility model, the transmission mechanism includes a worm gear, which is rotatably connected to the wrench head. The bottom of the movable jaw is provided with a tooth groove that matches the thread of the worm gear. The rotating connecting shaft at one end of the worm gear and the top end of the connecting rod are connected by a bevel gear transmission.

[0008] As a preferred embodiment of this utility model, the outer wall of the extension sleeve is provided with an anti-slip rubber sleeve.

[0009] As a preferred embodiment of this invention, both the fixed jaw and the movable jaw have anti-slip textures on their inner sides.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) This utility model avoids the inconvenience of having to carry the entire long handle into a narrow space by adjusting the operation logic of installing the extension sleeve after the opening, and significantly improves the flexibility of initial positioning. The threaded connection structure between the extension sleeve and the handle forms a rigid whole. Compared with the traditional telescopic extension handle, the stress distribution is uniform when under force, eliminating the safety hazard of breakage at the connection. At the same time, the detachable design makes it easy to store and carry the tool. The vertical handle breaks through the spatial limitation of linear force application, allowing the operator to apply force at multiple angles in environments with dense equipment. The operation can be completed without disassembling the external equipment, which greatly shortens the maintenance time and improves the maintenance efficiency of industrial equipment.

[0012] (2) In terms of adjustment design, the knob is integrated into the bottom of the handle and hidden inside the extension sleeve. During normal use, there will be no accidental touch. At the same time, the opening size of the fixed jaw and the movable jaw can be adjusted by directly rotating the worm gear. When the wrench is inserted into the confined space, the operator can easily adjust the opening by twisting the tactile sensation with his fingertips, avoiding the tedious process of repeatedly pulling the wrench out of the working position to adjust the jaws, as required by traditional adjustable wrenches. With the worm gear-tooth transmission mechanism, the opening size can be finely adjusted and locked, ensuring reliable clamping with the nut in a blind operation environment, reducing the number of ineffective adjustments. The overall structure is compact and reasonable, combining flexibility and high strength, providing an efficient and reliable solution for the maintenance of intensive equipment in the fields of petroleum, chemical, and power. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the wrench and handle in this utility model;

[0016] In the diagram: 1. Extension sleeve; 2. Wrench head; 3. Fixed jaw; 4. Movable jaw; 5. Handle; 6. Detachable handle; 7. Connecting rod; 8. Knob; 9. Perforation; 10. Worm gear; 11. Gear groove; 12. Anti-slip rubber sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example

[0019] Please see Figure 1-2 The present invention provides the following technical solution: a practical adjustable wrench with a vertical handle, comprising a wrench body and an extension sleeve 1. The wrench body includes a wrench head 2, a fixed jaw 3 integrally connected to the top of the wrench head 2, a movable jaw 4 slidably connected to the other side of the top of the wrench head 2, a handle 5 integrally connected to the bottom of the wrench head 2, the extension sleeve 1 being sleeved on the outside of the handle 5 and connected to the handle 5 by threads, a detachable handle 6 being installed at the bottom end of the extension sleeve 1, a connecting rod 7 being rotatably connected inside the handle 5, the bottom of the connecting rod 7 passing through the bottom end of the handle 5 and a knob 8 being fixed at the end, the top of the connecting rod 7 being placed inside the wrench head 2, and a transmission mechanism being provided between the connecting rod 7 and the movable jaw 4.

[0020] To ensure that the extension sleeve 1 can rotate freely and avoid frictional interference with the knob 8, while ensuring the smoothness and reliability of the adjustment operation, in this embodiment, as a preferred technical solution of the present invention, the knob 8 is placed inside the extension sleeve 1 and does not contact the inner wall of the extension sleeve 1.

[0021] In order to achieve a detachable connection between the detachable handle 6 and the extension sleeve 1, forming a force application fulcrum perpendicular to the axis of the handle 5, in this embodiment, as a preferred technical solution of the present invention, a through hole 9 is provided at the bottom end of the extension sleeve 1, and the handle 6 passes through the through hole 9.

[0022] In order to convert the vertical rotation of the knob 8 into the horizontal sliding of the movable jaw 4 through the threaded engagement of the worm 10 and the tooth groove 11 and the power conversion of the bevel gear transmission structure, so as to achieve precise adjustment of the opening size and stable transmission, in this embodiment, as a preferred technical solution of the present invention, the transmission mechanism includes a worm 10, which is internally rotatably connected to the wrench head 2. The bottom of the movable jaw 4 is provided with a tooth groove 11 that is threadedly adapted to the worm 10. The rotating connecting shaft at one end of the worm 10 and the top end of the connecting rod 7 are connected by a bevel gear transmission.

[0023] In order to enhance the friction when the operator holds the extension sleeve 1, prevent the hand from slipping during the application of force, and improve the stability and safety of operation, in this embodiment, as a preferred technical solution of the present invention, the outer wall of the extension sleeve 1 is provided with an anti-slip rubber sleeve 12.

[0024] In order to increase the contact friction between the fixed jaw 3, the movable jaw 4 and the nut surface, and to avoid slippage or dislodgement during disassembly and assembly, in this embodiment, as a preferred technical solution of the present invention, anti-slip textures are provided on the inner sides of both the fixed jaw 3 and the movable jaw 4.

[0025] In summary, with the help of the above-described technical solution of this utility model,

[0026] When it is necessary to disassemble or assemble a nut in a narrow, deep space, first unscrew the extension sleeve 1 from the outside of the handle 5 to allow the fixed jaw 3 and movable jaw 4 of the wrench head 2 to be directly inserted into the narrow gap and placed outside the target nut. At this time, the operator rotates the knob 8 located at the bottom of the handle 5, which drives the internal connecting rod 7 to rotate. The bevel gear transmission mechanism at the top of the connecting rod 7 drives the worm gear 10 to rotate. The worm gear 10 engages with the tooth groove 11 at the bottom of the movable jaw 4, causing the movable jaw 4 to slide horizontally along the top of the wrench head 2 until the opening size of the fixed jaw 3 and the movable jaw 4 precisely matches the outer diameter of the nut.

[0027] After adjusting the opening, the extension sleeve 1 is screwed onto the outside of the handle 5 via a threaded connection. The screw-in length of the extension sleeve 1 is adjusted according to the depth of the operating space to form a suitable extended lever arm. Then, the detachable handle 6 is inserted through the through hole 9 at the bottom of the extension sleeve 1 to form an L-shaped force application structure perpendicular to the axis of the handle 5. The operator holds both ends of the handle 6 with both hands and drives the wrench to rotate by applying lateral force perpendicular to the direction of the handle 5. The anti-slip rubber sleeve 12 on the outer wall of the extension sleeve 1 can effectively prevent slippage when holding. The anti-slip texture on the inner side of the fixed jaw 3 and the movable jaw 4 tightly engages the nut surface to ensure stability. Even in blind spots where visibility is obstructed, torque can be reliably transmitted to complete the installation and removal of the nut.

[0028] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A practical adjustable wrench with a vertical handle, comprising a wrench body and an extension sleeve (1), characterized in that: The wrench body includes a wrench head (2), a fixed jaw (3) integrally connected to the top of the wrench head (2), a movable jaw (4) slidably connected to the other side of the top of the wrench head (2), a handle (5) integrally connected to the bottom of the wrench head (2), an extension sleeve (1) sleeved on the outside of the handle (5) and connected to the handle (5) by a thread, a detachable handle (6) installed at the bottom end of the extension sleeve (1), a connecting rod (7) rotatably connected inside the handle (5), the bottom of the connecting rod (7) passes through the bottom end of the handle (5) and a knob (8) is fixed at the end, the top of the connecting rod (7) is placed inside the wrench head (2), and a transmission mechanism is provided between the connecting rod (7) and the movable jaw (4).

2. A practical adjustable wrench with a vertical handle according to claim 1, characterized in that: The knob (8) is placed inside the extension sleeve (1) and does not contact the inner wall of the extension sleeve (1).

3. A practical adjustable wrench with a vertical handle according to claim 1, characterized in that: The extension sleeve (1) has a through hole (9) at its bottom end, and the handle (6) passes through the through hole (9).

4. A practical adjustable wrench with a vertical handle according to claim 1, characterized in that: The transmission mechanism includes a worm (10), which is rotatably connected to the wrench (2). The bottom of the movable jaw (4) is provided with a tooth groove (11) that is threadedly adapted to the worm (10). The rotating connecting shaft at one end of the worm (10) and the top end of the connecting rod (7) are connected by a bevel gear.

5. A practical adjustable wrench with a vertical handle according to claim 1, characterized in that: The outer wall of the extension sleeve (1) is provided with an anti-slip rubber sleeve (12).

6. A practical adjustable wrench with a vertical handle according to claim 1, characterized in that: The inner sides of both the fixed jaw (3) and the movable jaw (4) are provided with anti-slip textures.

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