Limiting steering ratchet wrench

Abstract

The utility model relates to the field of manual tool of exerting torsion, and disclose a kind of with limit steering ratchet wrench, including shell, the inside rotation of shell is equipped with ratchet ring;By control slide rack to make it move in limit seat, ensure that positioning block is far from rotating seat, further, control limit seat rotation 90 after loosening slide rack, make slide rack under the action of second spring positioning block is pushed into positioning groove, further realize the steering of limit seat, when rotating limit seat makes it perpendicular to shell, ratchet wrench can be applicable to the operation environment of smaller operating space, rotating grip lever makes it perpendicular to grip handle at this time, further can be controlled by holding grip lever the rotation of grip handle, benefit from the center position relationship of grip handle and ratchet ring, compared with traditional ratchet wrench when rotating more convenient to hold and save effort.

Description

Technical Field

[0001] This utility model relates to the field of manual tools that apply torque, specifically a ratchet wrench with a limit and steering mechanism. Background Technology

[0002] A ratchet wrench includes a ratchet mechanism, which consists of a ratchet and a pawl. It is controlled by a spring to rotate in one or two directions to quickly tighten or loosen bolts. It also features a socket connection and an adjustable handle that can be adjusted to suit different operating scenarios.

[0003] Chinese patent CN222079155U discloses a ratchet wrench with a limit-positioning steering mechanism. This invention features a transition portion for connecting the handle on the main body of the ratchet's working end. A receiving groove connects to a receiving space and extends from the receiving space towards the transition portion. The receiving groove has a support wall. The pawl, through the elastic force of an elastic element, engages the second tooth with the first tooth, and its back rests against the support wall. The ratio of the thickness of the support wall to the diameter of the inscribed circle of the driving member is limited to 0.2 to 1. This ratchet wrench places the support wall at the transition portion of the main body's connecting handle, rather than on the peripheral wall, ensuring the thickness of the support wall and avoiding weak points on the peripheral wall, thus increasing the maximum torque of the ratchet wrench. Furthermore, the thickness of the support wall changes with the diameter of the inscribed circle of the driving member to accommodate the maximum torque requirements of different ratchet wrench sizes.

[0004] The aforementioned wrench is designed to accommodate the maximum torque of the wrench. However, existing wrenches cannot be bent to fit into confined spaces. Furthermore, traditional wrenches with bendable handles are difficult to use due to uncontrollable handles and misalignment between the handle and ratchet. Therefore, a wrench with a limit-direction ratchet is needed. Summary of the Invention

[0005] The purpose of this invention is to provide a ratchet wrench with a limit and steering mechanism to solve the problems of existing wrench handles being unable to be turned and fixed, and the difficulty in using the wrench after the handle is bent.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ratchet wrench with a limiting and steering mechanism, comprising a housing, a ratchet ring rotatably mounted inside the housing, a pawl slidably mounted on one side of the housing, a first spring fixedly mounted on one side of the pawl, and a limiting mechanism provided on one side of the housing; the limiting mechanism includes a rotating base, the rotating base being fixedly mounted on one side of the housing, and a limiting seat rotatably mounted on the rotating base, a slide being slidably mounted through the limiting seat, positioning blocks being fixedly mounted at both ends of the slide, and two second springs being fixedly mounted side-by-side on one side of the slide, and positioning grooves being provided on three sides of the rotating base.

[0007] Preferably, the three positioning slots are located at the top, bottom and front sides of the rotating base, respectively, and the positioning block is adapted to the positioning slot.

[0008] Preferably, the limiting seat has a strip-shaped groove in the middle, and the slide is slidably mounted on the limiting seat through the strip-shaped groove.

[0009] Preferably, the second spring is located between the slide and the limiting seat, and the exterior of the ratchet ring and the pawl are both composed of a combination of several right-angled trapezoidal teeth.

[0010] Preferably, the limiting seat is provided with a gripping mechanism, the gripping mechanism includes a folding rod, the folding rod is fixedly installed at one end of the limiting seat, and a handle is fixedly installed at one end of the folding rod. A buckle groove is opened on one side of the handle, and a grip rod is slidably installed through the grip rod. Both ends of the grip rod are fixedly installed with stop posts.

[0011] Preferably, the folding rod consists of two horizontal bars and one vertical bar, and the length of the vertical bar is consistent with the center distance between the rotating seat and the ratchet ring.

[0012] Preferably, the buckle groove is adapted to the grip bar, the diameter of the stop post is smaller than the thickness of the grip bar, and one end of the buckle groove is provided with a strip-shaped groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1) This ratchet wrench with limit and steering function moves the slide within the limit seat by controlling the slide to ensure that the positioning block is away from the rotating seat. Furthermore, after controlling the limit seat to rotate 90°, the slide is released, and the slide pushes the positioning block into the positioning groove under the action of the second spring, thereby realizing the steering of the limit seat. When the limit seat is rotated so that it is perpendicular to the outer shell, the ratchet wrench can be used in working environments with limited operating space.

[0014] 2) This ratchet wrench with limit and steering function, when the limit seat is rotated so that it is perpendicular to the outer shell, the center of the handle and the center of the ratchet ring will be on the same straight line. At this time, the handle bar is rotated so that it is perpendicular to the handle, and the rotation of the handle can be controlled by holding the handle bar. Benefiting from the positional relationship between the center of the handle and the center of the ratchet ring, it is easier to hold and less effort when rotating compared with the traditional ratchet wrench. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a ratchet wrench with a limiting steering mechanism according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the limiting mechanism in an embodiment of the present utility model; Figure 3 As an embodiment of this utility model Figure 2 Enlarged view of A in the middle; Figure 4 This is a diagram illustrating the rotation of the limiting seat in an embodiment of this utility model. Figure 5 This is a cross-sectional view of the handle in an embodiment of the present invention.

[0016] In the diagram: 1. Outer shell; 2. Ratchet ring; 3. Pawl; 4. First spring; 5. Limiting mechanism; 501. Rotary seat; 502. Limiting seat; 503. Slide; 504. Positioning block; 505. Second spring; 506. Positioning groove; 6. Grip mechanism; 601. Folding bar; 602. Handle; 603. Buckle groove; 604. Grip bar; 605. Stop post. 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. Example 1

[0018] Combination Figures 1-4 A ratchet wrench with a limit and steering mechanism includes a housing 1. A ratchet ring 2 is rotatably mounted inside the housing 1, and a pawl 3 is slidably mounted on one side of the housing 1. A first spring 4 is fixedly mounted on one side of the pawl 3. A limit mechanism 5 is provided on one side of the housing 1. The limit mechanism 5 includes a rotating base 501, which is fixedly mounted on one side of the housing 1. A limit seat 502 is rotatably mounted on the rotating base 501. A slide 503 is slidably mounted through the limit seat 502. Positioning blocks 504 are fixedly mounted at both ends of the slide 503. Two second springs 505 are fixedly mounted side by side on one side of the slide 503. Positioning grooves 506 are provided on three sides of the rotating base 501.

[0019] Three positioning slots 506 are located at the top, bottom, and front of the rotating base 501, respectively, and the positioning block 504 is adapted to the positioning slots 506. A strip-shaped groove is provided in the middle of the limiting base 502, and the slide 503 is slidably mounted on the limiting base 502 through the strip-shaped groove. The second spring 505 is located between the slide 503 and the limiting base 502. The ratchet ring 2 and the pawl 3 are both composed of several right-angled trapezoidal teeth. Benefiting from the positional relationship of the positioning slots 506, during use, by controlling the slide 503 to move within the limiting base 502, the positioning block 504 is ensured to be away from the rotating base 501. Furthermore, after controlling the limiting base 502 to rotate 90°, the slide 503 is released so that the positioning block 504 is pushed into the positioning slot 506 under the action of the second spring 505, thereby realizing the rotation of the limiting base 502. When the limiting base 502 is rotated so that it is perpendicular to the outer shell 1, the ratchet wrench can be used in working environments with limited operating space. Example 2

[0020] See Figure 4 and Figure 5 The limiting seat 502 is provided with a gripping mechanism 6, which includes a folding rod 601. The folding rod 601 is fixedly installed at one end of the limiting seat 502, and a handle 602 is fixedly installed at one end of the folding rod 601. A buckle groove 603 is opened on one side of the handle 602, and a grip rod 604 is slidably installed through the handle 602. Both ends of the grip rod 604 are fixedly installed with stop posts 605.

[0021] The lever 601 consists of two horizontal bars and one vertical bar. The length of the vertical bar is consistent with the center distance between the rotating seat 501 and the ratchet ring 2. The buckle groove 603 is adapted to the handle 604. The diameter of the stop post 605 is smaller than the thickness of the handle 604. A strip groove is provided at one end of the buckle groove 603. When the limiting seat 502 is rotated to be perpendicular to the outer shell 1, the center of the handle 602 and the ratchet ring 2 will be on the same straight line. At this time, the handle 604 is rotated to be perpendicular to the handle 602. Then, the rotation of the handle 602 can be controlled by holding the handle 604. Compared with the traditional ratchet wrench, it is easier to hold and less effort when rotating.

[0022] In actual operation, by controlling the slide 503 to move within the limit seat 502, the positioning block 504 is kept away from the rotating seat 501. Furthermore, after controlling the limit seat 502 to rotate 90°, the slide 503 is released, so that the slide 503 pushes the positioning block 504 into the positioning groove 506 under the action of the second spring 505, thereby realizing the rotation of the limit seat 502. When the limit seat 502 is rotated to be perpendicular to the outer shell 1, the ratchet wrench can be used in working environments with limited operating space. When the rotating limit seat 502 is made perpendicular to the outer shell 1, the center of the handle 602 and the ratchet ring 2 will be on the same straight line. At this time, the grip bar 604 is rotated to be perpendicular to the handle 602, and the rotation of the handle 602 can be controlled by gripping the grip bar 604. Benefiting from the positional relationship between the center of the handle 602 and the ratchet ring 2, it is easier to hold and less effort to rotate compared to a traditional ratchet wrench.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ratchet wrench with a limiting and steering mechanism, comprising a housing (1), wherein a ratchet ring (2) is rotatably mounted inside the housing (1), and a pawl (3) is slidably mounted on one side of the housing (1), and a first spring (4) is fixedly mounted on one side of the pawl (3), characterized in that: A limiting mechanism (5) is provided on one side of the outer shell (1); The limiting mechanism (5) includes a rotating seat (501), which is fixedly installed on one side of the outer shell (1). A limiting seat (502) is rotatably installed on the rotating seat (501). A slide (503) is slidably installed through the limiting seat (502). Positioning blocks (504) are fixedly installed at both ends of the slide (503). Two second springs (505) are fixedly installed side by side on one side of the slide (503). Positioning grooves (506) are provided on three sides of the rotating seat (501).

2. A ratchet wrench with a limiting and steering mechanism according to claim 1, characterized in that: The three positioning slots (506) are located at the top, bottom and front of the rotating base (501) respectively, and the positioning block (504) is adapted to the positioning slots (506).

3. A ratchet wrench with a limit and steering mechanism according to claim 1, characterized in that: The limiting seat (502) has a strip-shaped groove in the middle, and the slide (503) is slidably mounted on the limiting seat (502) through the strip-shaped groove.

4. A ratchet wrench with a limiting and steering mechanism according to claim 3, characterized in that: The second spring (505) is located between the slide (503) and the limiting seat (502), and the exterior of the ratchet ring (2) and the pawl (3) are composed of several right-angled trapezoidal teeth.

5. A ratchet wrench with a limiting and steering mechanism according to claim 4, characterized in that: The limiting seat (502) is provided with a gripping mechanism (6), which includes a folding rod (601). The folding rod (601) is fixedly installed at one end of the limiting seat (502), and a handle (602) is fixedly installed at one end of the folding rod (601). A buckle groove (603) is provided on one side of the handle (602), and a grip rod (604) is slidably installed through the handle (602). Both ends of the grip rod (604) are fixedly installed with stop posts (605).

6. A ratchet wrench with a limiting and steering mechanism according to claim 5, characterized in that: The folding bar (601) consists of two horizontal bars and one vertical bar, and the length of the vertical bar is consistent with the center distance between the rotating seat (501) and the ratchet ring (2).

7. A ratchet wrench with a limiting and steering mechanism according to claim 5, characterized in that: The buckle groove (603) is adapted to the grip (604), the diameter of the stop post (605) is smaller than the thickness of the grip (604), and a strip groove is provided at one end of the buckle groove (603).

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