A large torque ratchet wrench

Abstract

The utility model discloses a big torque ratchet wrench belongs to torque wrench technical field, including two main staff, two main staff symmetry distribution, and the one end of two main staff is away respectively detachable connection has sleeve ratchet head and plum blossom ratchet head, and the one end of two main staff is close all fixedly connected with fixed nut, and two fixed nuts are screw -threaded connection with two -way threaded rod, and two -way threaded rod's both ends respectively swing and penetrate in two main staff, and the circumferential surface of two main staff all is fixedly connected with handle, and one handle is fixedly connected with the plug -in rod, and the other handle is opened and cuts has the sliding slot, two -way threaded rod can adjust the distance between two main staff through two fixed nuts, and two handles follow two main staff movement to make the whole ratchet wrench extend, and two handles extend respectively correspond sleeve ratchet head and plum blossom ratchet head staggered use to improve sleeve ratchet head and plum blossom ratchet head when the torque of loose fastener.

Description

Technical Field

[0001] This utility model relates to the field of torque wrench technology, and more specifically, to a high-torque ratchet wrench. Background Technology

[0002] A ratchet wrench is a manual screw tightening and loosening tool. Single-headed and double-headed ratchet wrenches (with fixed holes) with adjustable handles are made of main and secondary ratchet sleeves of different sizes, connected by the engagement of male and female keys of a hinge key. Because one ratchet sleeve has two sizes of ratchet-shaped through holes, it can be used to tighten and loosen two sizes of screws, thus expanding its application range and saving raw materials and labor costs.

[0003] Currently, to increase torque and make wrenches easier to use, ratchet wrenches generally use an extended handle. However, most existing ratchet wrenches use a telescopic handle extension method to increase torque. Since there is only one handle, it can only be used for single-ended ratchet wrenches and cannot be used for double-ended ratchet wrenches with large torque adjustment. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a high-torque ratchet wrench. This invention aims to solve the problem that most ratchet wrenches in the prior art use a telescopic handle to extend in order to increase torque. Since there is only one handle, it can only be used for single-head ratchet wrenches and cannot be used for high-torque adjustment of double-head ratchet wrenches.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A high-torque ratchet wrench includes two main rods symmetrically distributed. A sleeve ratchet head and a box ratchet head are detachably connected to the far ends of the two main rods, respectively. A fixing nut is fixedly connected to the near ends of the two main rods. A double-threaded rod is internally threaded onto each of the two fixing nuts, with both ends of the double-threaded rod movably passing through the two main rods. A handle is fixedly connected to the circumferential surface of each of the two main rods. A insertion rod is fixedly connected to one handle, and a groove is chiseled into the other handle, into which the insertion rod slidably inserts.

[0009] As a preferred embodiment of this utility model, both ends of the bidirectional threaded rod are fixedly connected to reinforcing columns, and the two reinforcing columns are slidably inserted into the two main rods respectively.

[0010] As a preferred embodiment of this utility model, a rotating sleeve is fixedly connected to the middle circumferential surface of the bidirectional threaded rod, and the rotating sleeve is located between two fixed nuts.

[0011] As a preferred embodiment of this utility model, anti-slip sleeves are fixedly connected to the circumferential surfaces of both handles, and grip grooves are provided on the circumferential surfaces of both anti-slip sleeves.

[0012] 3. Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1) In this solution, the distance between the two main rods can be adjusted by two fixing nuts. The two handles move with the two main rods, thereby extending the entire ratchet wrench. After the two handles are extended, they are used alternately for the socket ratchet head and the box ratchet head, thereby increasing the torque of the socket ratchet head and the box ratchet head when tightening or loosening the fasteners.

[0015] 2) In this design, the entire ratchet wrench uses two handles. The distance between the two handles can increase the torque of the entire ratchet wrench. The two handles correspond to the socket ratchet head and the box ratchet head respectively, so that both ends of the ratchet wrench can be adjusted to a large torque, making it easier to use. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the present invention.

[0019] Explanation of the labels in the diagram:

[0020] 1. Main rod; 3. Sleeve ratchet head; 4. Plum blossom ratchet head; 5. Fixing nut; 6. Two-way threaded rod; 7. Handle; 8. Insert rod; 9. Slide groove; 10. Reinforcing column; 11. Rotating sleeve; 12. Anti-slip sleeve; 13. Grip groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 1-3 A high-torque ratchet wrench includes two main rods 1, which are symmetrically distributed. The ends of the two main rods 1 that are far apart are respectively detachably connected to a socket ratchet head 3 and a box ratchet head 4. The ends of the two main rods 1 that are close to each other are fixedly connected to a fixing nut 5. The two fixing nuts 5 are internally threaded with a double-threaded rod 6, and the two ends of the double-threaded rod 6 are respectively movably inserted into the two main rods 1. The circumferential surfaces of the two main rods 1 are fixedly connected to a handle 7. A plug rod 8 is fixedly connected to one handle 7, and a groove 9 is carved on the other handle 7, and the plug rod 8 is slidably inserted into the groove 9.

[0026] In this embodiment, the socket ratchet head 3 and the Phillips head ratchet head 4 are suitable for different types of fasteners. The two handles 7 are respectively staggered with the socket ratchet head 3 and the Phillips head ratchet head 4. When the ratchet wrench needs to be adjusted to a large torque, the bidirectional threaded rod 6 is rotated. The surface of the bidirectional threaded rod 6 is provided with two threads in opposite directions. The two fixing nuts 5 are respectively threaded to the two opposite threads on the surface of the bidirectional threaded rod 6. After the bidirectional threaded rod 6 is rotated, the two fixing nuts 5 will move away from each other. The two fixing nuts 5 will drive the two main rods 1 to move away from each other, thereby making the two handles 7 move away from each other. The insert rod 8 slides and extends in the slide groove 9, the entire ratchet wrench is extended, the distance between the two handles 7 changes, thereby increasing the torque, making it easier for the socket ratchet head 3 and the Phillips head ratchet head 4 to tighten or loosen the fasteners.

[0027] Specifically, both ends of the bidirectional threaded rod 6 are fixedly connected with reinforcing columns 10, and the two reinforcing columns 10 are slidably inserted into the two main rods 1 respectively.

[0028] In this embodiment, the two reinforcing posts 10 are in contact with the inner walls of the two main rods 1 respectively, thereby improving the strength of the ratchet wrench when it rotates.

[0029] Specifically, a rotating sleeve 11 is fixedly connected to the middle circumferential surface of the bidirectional threaded rod 6, and the rotating sleeve 11 is located between two fixed nuts 5.

[0030] In this embodiment, the rotating sleeve 11 can increase the friction when the operator rotates the bidirectional threaded rod 6, making it easier to rotate the bidirectional threaded rod 6.

[0031] Specifically, anti-slip sleeves 12 are fixedly connected to the circumferential surfaces of both handles 7, and grip grooves 13 are provided on the circumferential surfaces of both anti-slip sleeves 12.

[0032] In this embodiment, the two anti-slip sleeves 12 and the two grip grooves 13 work together to make it more convenient for the operator to hold the handle 7 and turn it.

[0033] Working principle: When the ratchet wrench needs to be adjusted to a high torque, the two fixed nuts 5 are moved away from each other by rotating the double-threaded rod 6. The two fixed nuts 5 drive the two main rods 1 to move away from each other, thereby moving the two handles 7 away from each other. The insert rod 8 slides and extends in the slide groove 9, thus lengthening the entire ratchet wrench. The distance between the two handles 7 changes, thereby increasing the torque. When the ratchet wrench is not in use, the two main rods 1 are brought closer together by rotating the double-threaded rod 6 in the opposite direction, shortening the length of the entire ratchet wrench and making it easy to carry.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A high-torque ratchet wrench, comprising two main rods (1), characterized in that: The two main rods (1) are symmetrically distributed. The ends of the two main rods (1) that are far apart are respectively detachably connected to a sleeve ratchet head (3) and a plum blossom ratchet head (4). The ends of the two main rods (1) that are close to each other are fixedly connected to a fixing nut (5). The two fixing nuts (5) are internally threaded with a double-threaded rod (6), and the two ends of the double-threaded rod (6) are respectively movably inserted into the two main rods (1). The circumferential surfaces of the two main rods (1) are fixedly connected to a handle (7). A plug rod (8) is fixedly connected to one handle (7), and a groove (9) is chiseled on the other handle (7), and the plug rod (8) is slidably inserted into the groove (9).

2. A high-torque ratchet wrench according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (6) are fixedly connected to reinforcing columns (10), and the two reinforcing columns (10) are slidably inserted into the two main rods (1).

3. A high-torque ratchet wrench according to claim 2, characterized in that: A rotating sleeve (11) is fixedly connected to the middle circumferential surface of the bidirectional threaded rod (6), and the rotating sleeve (11) is located between two fixed nuts (5).

4. A high-torque ratchet wrench according to claim 3, characterized in that: Both handles (7) are fixedly connected with anti-slip sleeves (12) on their circumferential surfaces, and both anti-slip sleeves (12) are provided with grip grooves (13) on their circumferential surfaces.

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