Ratchet wrench

Abstract

The utility model provides a ratchet wrench which comprises a handle, installation grooves are formed in the two side faces of the front end of the handle, two long-strip-shaped cover plates are jointly and fixedly installed in the installation grooves in the two sides of the handle, and the front ends of the two long-strip-shaped cover plates extend out of the installation grooves. A first rivet is rotationally installed at the front ends of the two long-strip-shaped cover plates together, and a regular hexagon inserting groove is formed in one end of the first rivet. According to the ratchet wrench provided by the utility model, the cylindrical ratchet can only rotate in one direction under the mutual matching of the steering block, the seam, the spring, the ball and the cylindrical ratchet, and the steering can be switched by operating the steering block, so that a user can continuously apply torque in one direction without frequently changing a holding mode or adjusting a tool; and meanwhile, the mechanical structure for controlling one-way rotation and switching steering of the ratchet wrench is simple, operation is convenient, and the production cost can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to a ratchet wrench. Background Art

[0002] A ratchet wrench is a commonly used hand tool used to tighten or loosen bolts and nuts. Traditional ratchet wrenches may have problems such as complex structures. For example, Chinese patent publication number CN111660238A discloses a ratchet wrench comprising a wrench head, a wrench handle, a ratchet rotatably disposed within a slot in the wrench head, and an adapter fixedly connected to the ratchet. The slot in the wrench head includes a pair of latching arms, the fixed ends of the latching arms being hinged to the wrench head, and the movable ends being formed with pawls that engage with the ratchet. A switching member is disposed between the latching arms, the switching member being hinged to the wrench head and having a magnet disposed on the switching member to provide magnetic attraction to the latching arms.

[0003] Although the ratchet wrench controls the swing of the latch arm through the magnet on the switching member, compared with the structure that uses an elastomer to provide restoring force, it can significantly reduce the design size of the wrench head, reduce manufacturing costs, improve the appearance and ease of use of the wrench, and also has higher reliability and service life, but its switching steering structure also simplifies space. Therefore, a ratchet wrench with a simpler structure is proposed. Utility Model Content

[0004] The utility model aims to solve the problems raised in the background technology and provides a ratchet wrench.

[0005] The specific technical solutions are as follows:

[0006] A ratchet wrench comprises: a handle, wherein mounting grooves are formed on both sides of the front end of the handle, and two long cover plates are fixedly mounted in the mounting grooves on both sides of the handle, and the front ends of the two long cover plates extend to the outside of the mounting grooves;

[0007] The front ends of the two long cover plates are jointly rotated with a rivet 1, one end of which is provided with a regular hexagonal slot, and a cylindrical ratchet is fixedly sleeved on the rivet 1, and the cylindrical ratchet is located between the front ends of the two long cover plates;

[0008] A second rivet is fixedly installed between the two long cover plates, and a steering block is rotatably mounted on the second rivet. The steering block is located between the cylindrical ratchet and the front end of the handle. The end of the steering block close to the cylindrical ratchet has an arc-shaped groove, and the end of the steering block away from the cylindrical ratchet has a pointed tip, and both ends of the arc-shaped groove have bites;

[0009] A fitting groove is provided on one side surface of the front end of the handle, and a spring is installed in the fitting groove. The spring is encapsulated inside the fitting groove by the long cover plate, and a round ball is abutted between the end of the spring close to the steering block and the tip of the steering block. Under the action of the spring, the round ball pushes the tip of the steering block to one side and tilts it. When the tip of the steering block tilts to one side, the bite at one end can engage with the teeth on the cylindrical ratchet, so that the cylindrical ratchet can only rotate in one direction.

[0010] The ratchet wrench mentioned above, wherein: the number of teeth on the cylindrical ratchet is 24-48 teeth.

[0011] The ratchet wrench mentioned above, wherein: anti-slip grooves are provided on both side surfaces of the steering block.

[0012] The ratchet wrench mentioned above, wherein: the two long cover plates are fixedly installed in the installation groove through rivets three.

[0013] The ratchet wrench mentioned above, wherein: a positioning block is integrally provided in the installation groove, a positioning hole is opened on the long cover plate, and the positioning block is inserted into the positioning hole when the long cover plate is fixedly installed in the installation groove.

[0014] The ratchet wrench mentioned above, wherein: a mounting hole 1 for mounting the rivet 1 is provided on the elongated cover plate near its front end.

[0015] The ratchet wrench mentioned above, wherein: the long cover plate is provided with a second mounting hole for passing the second rivet.

[0016] The ratchet wrench mentioned above, wherein: the long cover plate is provided with a mounting hole three for passing the rivet three.

[0017] The ratchet wrench mentioned above, wherein: the handle is provided with a through hole near its tail end.

[0018] The ratchet wrench mentioned above, wherein: decorative grooves are provided on both side surfaces of the handle near the through holes.

[0019] The utility model has the following beneficial effects:

[0020] The ratchet wrench provided by the utility model can only rotate in one direction due to the mutual cooperation of the steering block, the bite, the spring, the ball and the cylindrical ratchet, and the steering can be switched by operating the steering block, so that the user can continuously apply torque in one direction without frequently changing the gripping method or adjusting the tool, which can significantly improve work efficiency and comfort. At the same time, the mechanical structure of the ratchet wrench for controlling unidirectional rotation and switching steering is simple, which is not only easy to operate but also can greatly reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a ratchet wrench provided in an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the exploded structure of a ratchet wrench provided in an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 This is a schematic structural diagram of the steering block in the ratchet wrench provided by an embodiment of the present utility model.

[0025] In the attached figure:

[0026] 1. Handle; 101. Mounting slot; 102. Perforation; 103. Decorative slot; 104. Positioning block; 105. Mounting slot; 106. Spring; 107. Ball; 2. Long cover; 201. Rivet three; 202. Mounting hole three; 203. Positioning hole; 204. Mounting hole two; 205. Mounting hole one; 4. Rivet one; 401. Regular hexagonal slot; 5. Cylindrical ratchet; 6. Steering block; 601. Arc groove; 602. Bite; 603. Anti-slip groove; 604. Rivet two. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Example

[0032] The ratchet wrench provided in this embodiment is as follows: Figures 1-4 As shown, it includes: a handle 1, and mounting grooves 101 are provided on both side surfaces of the front end of the handle 1. Two long cover plates 2 are fixedly installed in the mounting grooves 101 on both sides of the handle 1, and the front ends of the two long cover plates 2 extend to the outside of the mounting grooves 101.

[0033] Among them, the front ends of the two long cover plates 2 are jointly rotated and installed with a rivet 4, one end of the rivet 4 is provided with a regular hexagonal slot 401, and a cylindrical ratchet 5 is fixedly sleeved on the rivet 4. The cylindrical ratchet 5 is located between the front ends of the two long cover plates 2, and the regular hexagonal slot 401 is used to insert an inner hexagonal wrench or directly insert a regular hexagonal nut.

[0034] Among them, a second rivet 604 is fixedly installed between the two long cover plates 2, and a steering block 6 is rotatably mounted on the second rivet 604. The steering block 6 is located between the cylindrical ratchet 5 and the front end of the handle 1. The steering block 6 has an arc-shaped groove 601 at one end close to the cylindrical ratchet 5, and a tip at one end away from the cylindrical ratchet 5. Both ends of the arc-shaped groove 601 have a bite 602.

[0035] Among them, a fitting groove 105 is opened on one side surface of the front end of the handle 1, and a spring 106 is installed in the fitting groove 105. The spring 106 is encapsulated inside the fitting groove 105 through the long cover plate 2, and a ball 107 is abutted between the end of the spring 106 close to the steering block 6 and the tip of the steering block 6. Under the action of the spring 106, the ball 107 pushes the tip of the steering block 6 to one side and tilts it. When the tip of the steering block 6 tilts to one side, the bite 602 at one end can engage with the teeth on the cylindrical ratchet 5, so that the cylindrical ratchet 5 can only rotate in one direction.

[0036] With the mutual cooperation of the steering block 6, the bite 602, the spring 106, the ball 107 and the cylindrical ratchet 5, the cylindrical ratchet 5 can only rotate in one direction, and the steering can be switched by operating the steering block 6, so that the user can continuously apply torque in one direction without frequently changing the gripping method or adjusting the tool, which can significantly improve work efficiency and comfort. At the same time, the mechanical structure of the ratchet wrench for controlling unidirectional rotation and switching steering is simple, which is not only easy to operate, but also can greatly reduce production costs.

[0037] Specifically, in this embodiment, in order to meet the usage requirements of different users, the number of teeth on the cylindrical ratchet 5 is 24-48 teeth. The number of teeth can affect the rotation accuracy and strength of the ratchet.

[0038] Specifically, in this embodiment, anti-slip grooves 603 are provided on both side surfaces of the steering block 6. The anti-slip grooves 603 increase the friction of the user's hands during use, prevent sliding, and improve the stability of operating the steering block 6.

[0039] Specifically, in this embodiment, the two long cover plates 2 are fixedly installed in the installation groove 101 through the rivet three 201. The long cover plates 2 are fixedly installed in the installation groove 101 through the rivet three 201, ensuring the stability and durability of the overall structure of the ratchet wrench.

[0040] Specifically, in this embodiment, a positioning block 104 is integrated into the installation groove 101, and a positioning hole 203 is opened on the long cover plate 2. When the long cover plate 2 is fixedly installed in the installation groove 101, the positioning block 104 is inserted into the positioning hole 203. The positioning block 104 and the positioning hole 203 cooperate with each other to improve the stability of the overall structure of the ratchet wrench, while ensuring the accuracy and stability of the long cover plate 2 during installation.

[0041] Specifically, in this embodiment, a mounting hole 1 205 for mounting rivet 1 4 is provided near the front end of the long cover plate 2, a mounting hole 204 for passing rivet 2 604 is provided on the long cover plate 2, and a mounting hole 3 202 for passing rivet 3 201 is provided on the long cover plate 2. The design of mounting hole 1 205, mounting hole 204 and mounting hole 3 202 provides mounting positions for rivet 1 4, rivet 2 604 and rivet 3 201, ensuring the accurate installation of the various components of the ratchet wrench.

[0042] Specifically, in this embodiment, a through hole 102 is provided on the handle 1 near its tail end. The through hole 102 is designed to be used for hanging or carrying the ratchet wrench, thereby increasing the convenience of use.

[0043] Specifically, in this embodiment, decorative grooves 103 are provided on both side surfaces of the handle 1 near the through-holes 102 . The design of the decorative grooves 103 not only provides an aesthetically pleasing appearance, but also can be used to reduce the weight of the handle 1 .

[0044] In summary, the usage process of the ratchet wrench provided in this embodiment is as follows:

[0045] 1. Preparation stage:

[0046] The user first confirms the condition of the ratchet wrench to ensure that all parts are installed properly and function properly.

[0047] As needed, the user can select a suitable tool (such as an inner hexagonal wrench) and insert it into the regular hexagonal slot 401, or directly clamp the regular hexagonal slot 401 of the ratchet wrench on the regular hexagonal nut to tighten or loosen it;

[0048] 2. Apply torque:

[0049] The user holds the handle 1 and aligns the ratchet wrench with the bolt or nut that needs to be tightened or loosened.

[0050] By continuously rotating the handle 1 , the cylindrical ratchet 5 can only rotate in one direction under the action of the steering block 6 , the spring 106 and the ball 107 , thereby achieving the tightening or loosening of the bolt or nut.

[0051] 3. Switch steering:

[0052] When the rotation direction needs to be changed, the user can gently push the steering block 6 with his fingers, so that the ball 107 moves to the other side of the tip of the steering block 6 under the action of the spring 106, so that the bite 602 of the steering block 6 engages with the teeth on the cylindrical ratchet 5 in the opposite direction.

[0053] After switching the steering direction, the user can continue to apply torque in the other direction.

[0054] 4. Complete the operation:

[0055] When the tightening or loosening operation is completed, the user can remove the ratchet wrench from the bolt or nut and store it properly.

[0056] Technical Effects

[0057] 1. One-way rotation function: The ratchet wrench achieves one-way rotation of the cylindrical ratchet 5 through the interaction of the steering block 6, the bite 602, the spring 106, and the ball 107. This allows the user to continuously apply torque in one direction, improving work efficiency and comfort. At the same time, the ratchet wrench has a simple mechanical structure for controlling one-way rotation and switching direction, which is not only easy to operate but also can significantly reduce production costs.

[0058] 2. Convenient steering switching: The user can switch the rotation direction of the ratchet wrench by simply operating the steering block 6, without having to frequently change the grip or adjust the tool, which improves the flexibility and convenience of operation.

[0059] 3. Stable and durable structure: The overall structure of the ratchet wrench is designed with rivet three 201, positioning block 104 and positioning hole 203, which ensures the stability and durability of the structure and extends the service life of the tool.

[0060] 4. Beautiful and lightweight: The decorative groove 103 on the handle 1 not only provides an aesthetically pleasing appearance, but also reduces the weight of the tool, making the ratchet wrench more convenient to carry and use.

[0061] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A ratchet wrench, characterized in that: include: A handle (1), wherein mounting grooves (101) are provided on both sides of the front end of the handle (1), and two long cover plates (2) are fixedly mounted in the mounting grooves (101) on both sides of the handle (1), and the front ends of the two long cover plates (2) extend to the outside of the mounting grooves (101); A rivet (4) is mounted on the front ends of the two long cover plates (2) for joint rotation, a regular hexagonal slot (401) is provided at one end of the rivet (4), and a cylindrical ratchet (5) is fixedly mounted on the rivet (4), and the cylindrical ratchet (5) is located between the front ends of the two long cover plates (2); A second rivet (604) is fixedly installed between the two long cover plates (2), and a steering block (6) is rotatably mounted on the second rivet (604). The steering block (6) is located between the cylindrical ratchet (5) and the front end of the handle (1). The steering block (6) has an arcuate groove (601) at one end close to the cylindrical ratchet (5), and has a pointed tip at one end away from the cylindrical ratchet (5). Both ends of the arcuate groove (601) have bites (602). A fitting groove (105) is provided on one side surface of the front end of the handle (1), and a spring (106) is installed in the fitting groove (105). The spring (106) is encapsulated in the fitting groove (105) through the long cover plate (2), and a ball (107) is abutted between one end of the spring (106) close to the steering block (6) and the tip of the steering block (6). Under the action of the spring (106), the ball (107) pushes the tip of the steering block (6) to tilt to one side. When the tip of the steering block (6) tilts to one side, the bite (602) at one end can engage with the teeth on the cylindrical ratchet (5), so that the cylindrical ratchet (5) can only rotate in one direction.

2. The ratchet wrench according to claim 1, characterized in that The number of teeth on the cylindrical ratchet (5) is 24 to 48.

3. The ratchet wrench according to claim 1, wherein: Anti-slip grooves (603) are provided on both side surfaces of the steering block (6).

4. The ratchet wrench according to claim 1, wherein: The two long cover plates (2) are fixedly installed in the installation groove (101) through rivet three (201).

5. The ratchet wrench according to claim 4, characterized in that A positioning block (104) is integrally provided in the installation groove (101), and a positioning hole (203) is provided on the strip cover (2). When the strip cover (2) is fixedly installed in the installation groove (101), the positioning block (104) is inserted into the positioning hole (203).

6. The ratchet wrench according to claim 5, characterized in that The long cover plate (2) is provided with a mounting hole (205) near its front end for mounting the rivet (4).

7. The ratchet wrench according to claim 6, characterized in that The long cover plate (2) is provided with a second mounting hole (204) for passing the second rivet (604).

8. The ratchet wrench according to claim 7, wherein: The long cover plate (2) is provided with a third mounting hole (202) for passing the third rivet (201).

9. The ratchet wrench according to claim 1, wherein: The handle (1) is provided with a through hole (102) near its tail end.

10. The ratchet wrench according to claim 9, wherein: Decorative grooves (103) are provided on both side surfaces of the handle (1) near the through hole (102).

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