Torque wrench opening head convenient to adjust
By using the design of moving head sliding adjustment and positioning mechanism in the torque wrench opening, the problem of unsmooth adjustment caused by the prone to rust of the thread block in the prior art is solved, and a fast and stable opening size adjustment is achieved.
Patent Information
- Application Number
- CN202421128734.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing torque wrench opening is adjusted by rotating the thread block, which can easily cause impurities and moisture to rust, resulting in poor rotation and blockage of movement, affecting the adjustment effect.
The moving head is used to slide and adjust the slide through the slide, and combine the coordination of the positioning mechanism and the spring pressing rod to achieve rapid adjustment and fix the opening size.
It effectively avoids movement blockage, improves the adjustment efficiency and stability of the opening verb, and is suitable for bolts of different sizes.
Smart Images
Figure CN222430601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of torque wrenches, and more specifically to an open-ended torque wrench head which is easy to adjust. Background Art
[0002] A torque wrench, also known as an electric torque wrench, torque wrench, or torque adjustable wrench, is a type of wrench. With the continuous improvement of the level of industrialization, many equipment manufacturing industries, such as EMU and locomotive assembly, automobile assembly, and aircraft assembly, have increasingly stringent requirements for tightening bolts. Torque wrenches can meet high standards in some key technical indicators such as the torque loading accuracy of bolts.
[0003] At present, torque wrenches use different wrench heads depending on actual usage requirements. Common wrench heads include ratchet heads, movable open heads, hook heads, plum heads and pipe clamp heads, among which the movable open heads can be adjusted to be suitable for bolts and nuts of different sizes. The existing torque wrench open heads are adjusted by rotating the threaded block and controlling the movement of the open heads by rotating the threaded block. However, the threaded block is easily contaminated with impurities after long-term use and is easily rusted when in contact with water, which will cause uneven rotation and movement blockage, affecting the adjustment effect of the open head. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an easy-to-adjust torque wrench open head, aiming to solve the problem that the torque wrench open head in the prior art is to control the movement and adjustment of the open head by rotating a threaded block, but the threaded block is easily contaminated with impurities after long-term use, and is easily rusted when in contact with water, which will cause uneven rotation and movement blockage, affecting the adjustment effect of the open head.
[0006] 2. Technical solution
[0007] In order to solve the above problems, the utility model adopts the following technical solutions:
[0008] A torque wrench open head that is easy to adjust, comprising a connecting column, a fixed head is fixedly connected to the top of the connecting column, a moving head is slidably connected to the fixed head, a slideway is cut on the fixed head, a slider is fixedly connected to the moving head, and the slider is slidably connected in the slideway, a positioning mechanism is arranged between the moving head and the fixed head, the positioning mechanism is used to position the moving head after moving, so that the moving head cooperates with the fixed head to twist bolts of different sizes; the positioning mechanism comprises a limiting opening, the limiting opening is cut on the fixed head and intersects with the slideway, a slot rod is fixedly connected in the limiting opening, a part cavity is opened in the moving head, a pressing rod is slidably inserted in the part cavity, and both ends of the pressing rod are movably penetrated to the outside of the moving head, a spring is sleeved on the outer surface of the pressing rod, and the spring is located in the part cavity, a compression block is fixedly connected to the outer surface of the pressing rod, and the compression block is located in the part cavity and corresponds to the spring, and one end of the pressing rod is fixedly connected to a tooth ring, and the tooth ring is located in the limiting opening and corresponds to the slot rod.
[0009] As a preferred solution of the utility model, the outer surface of the fixed head is engraved with scale marks, and the scale marks correspond to the movable head.
[0010] As a preferred solution of the utility model, a nail removal opening is drilled on the fixing head.
[0011] As a preferred solution of the utility model, both the fixed head and the movable head are engraved with anti-slip pattern groups, and the two anti-slip pattern groups correspond to each other.
[0012] 3. Beneficial effects
[0013] Compared with the prior art, the advantages of the present invention are:
[0014] 1) In this solution, the position of the moving head is adjusted by pushing and pulling, so that the opening size of the opening head can be quickly adjusted, which is suitable for bolts of different sizes; in the utility model, the moving head is fixed by a positioning mechanism after adjustment, and the positioning mechanism removes the restriction on the movement of the moving head by pressing, so that the moving head can quickly slide to adjust the opening size. The overall structure is simple, and can effectively avoid the influence of movement blockage on the adjustment of the opening head. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the front view of the utility model;
[0016] Figure 2 It is a three-dimensional diagram of the utility model;
[0017] Figure 3 It is a cross-sectional view of the utility model;
[0018] Figure 4It is an exploded view of the utility model.
[0019] Description of the numbers in the figure:
[0020] 1. Connecting column; 2. Fixed head; 3. Moving head; 4. Slide; 5. Slider; 61. Limiting mouth; 62. Slot rod; 63. Parts cavity; 64. Pressing rod; 65. Spring; 66. Compression block; 67. Tooth ring; 7. Scale mark; 8. Nail removal mouth; 9. Anti-slip pattern group. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0024] Example:
[0025] See also Figure 1-4 , a torque wrench open head that is easy to adjust, comprising a connecting column 1, a fixed head 2 is fixedly connected to the top of the connecting column 1, a moving head 3 is slidably connected to the fixed head 2, a slideway 4 is excavated on the fixed head 2, a slider 5 is fixedly connected to the moving head 3, and the slider 5 is slidably connected in the slideway 4, a positioning mechanism is provided between the moving head 3 and the fixed head 2, and the positioning mechanism is used to position the moving head 3 after it moves, so that the moving head 3 cooperates with the fixed head 2 to twist bolts of different sizes;
[0026] The positioning mechanism includes a limit opening 61, which is excavated on the fixed head 2 and connected to the slideway 4. A slot rod 62 is fixedly connected in the limit opening 61. A part cavity 63 is opened in the moving head 3. A pressing rod 64 is slidably inserted in the part cavity 63, and both ends of the pressing rod 64 are movably inserted to the outside of the moving head 3. A spring 65 is sleeved on the outer surface of the pressing rod 64, and the spring 65 is located in the part cavity 63. A compression block 66 is fixedly connected to the outer surface of the pressing rod 64, and the compression block 66 is located in the part cavity 63 and corresponds to the spring 65. One end of the pressing rod 64 is fixedly connected to a tooth ring 67, and the tooth ring 67 is located in the limit opening 61 and corresponds to the slot rod 62.
[0027] In this embodiment, the open head is connected to the torque wrench through the connecting column 1. When the torque wrench is twisting the bolt, the moving head 3 is moved by opening the positioning mechanism. The moving head 3 is moved by the sliding connection between the slideway 4 and the slider 5. After the movement, the opening spacing between the moving head 3 and the fixed head 2 matches the bolt, and is fixed again by the positioning mechanism, so that the torque wrench twists the bolt through the open head;
[0028] The tooth ring 67 is located on the outer side of the slot rod 62, and is provided with an annular tooth matching the surface of the slot rod 62 inside. When the moving head 3 needs to move, the tooth ring 67 is moved by pressing the pressing rod 64, and the tooth inside the tooth ring 67 is disengaged from the slot on the surface of the slot rod 62, so that the pressing rod 64 is not restricted, and the moving head 3 can be moved and adjusted. At the same time, the compression block 66 is moved during the pressing of the pressing rod 64, and the compression block 66 squeezes the spring 65 in the part cavity 63. After the adjustment of the moving head 3 is completed, the spring 65 pushes the compression block 66 through its own elastic force, so that the compression block 66 drives the pressing rod 64 to reset on the moving head 3, and the pressing rod 64 drives the tooth ring 67 to move, and the tooth ring 67 contacts and engages with the slot rod 62, so that the pressing rod 64 is restricted in movement, and the moving head 3 cannot move, thereby ensuring the stability of the opening between the moving head 3 and the fixed head 2, and being able to twist the corresponding bolt.
[0029] Specifically, a scale mark 7 is engraved on the outer surface of the fixed head 2 , and the scale mark 7 corresponds to the movable head 3 .
[0030] In this embodiment, the moving distance of the moving head 3 can be determined by the scale mark 7, which facilitates the determination of the opening size of the opening head.
[0031] Specifically, a nail removal opening 8 is drilled on the fixing head 2 .
[0032] In this embodiment, the nail removal opening 8 matches the screw, which makes it easy to tilt the screw and solves the single function of the torque wrench.
[0033] Specifically, both the fixed head 2 and the movable head 3 are engraved with anti-slip pattern groups 9, and the two anti-slip pattern groups 9 correspond to each other.
[0034] In this embodiment, the two anti-slip pattern groups 9 can increase the friction between the open head and the bolt, making it more stable when the torque wrench twists the bolt.
[0035] Working principle: When the torque wrench is twisting the bolt, the tooth ring 67 is moved by pressing the pressing rod 64, and the tooth inside the tooth ring 67 is disengaged from the groove on the surface of the groove rod 62, so that the pressing rod 64 is not restricted, and the moving head 3 can be moved and adjusted. At the same time, the compression block 66 is moved during the pressing of the pressing rod 64, and the compression block 66 squeezes the spring 65 in the part cavity 63. After the adjustment of the moving head 3 is completed, the spring 65 pushes the compression block 66 through its own elastic force, so that the compression block 66 drives the pressing rod 64 to reset on the moving head 3, and the pressing rod 64 drives the tooth ring 67 to move, and the tooth ring 67 contacts and engages with the groove rod 62, so that the pressing rod 64 is restricted in movement, and the moving head 3 cannot move. The opening spacing between the positioned moving head 3 and the fixed head 2 matches the bolt, so that the torque wrench twists the bolt through the open head.
[0036] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.
Claims
1. A torque wrench open head for easy adjustment, comprising a connecting column (1), characterized in that: The top end of the connecting column (1) is fixedly connected to a fixed head (2), a movable head (3) is slidably connected to the fixed head (2), a slideway (4) is excavated on the fixed head (2), a slider (5) is fixedly connected to the movable head (3), and the slider (5) is slidably connected in the slideway (4), a positioning mechanism is provided between the movable head (3) and the fixed head (2), and the positioning mechanism is used to position the movable head (3) after it is moved, so that the movable head (3) cooperates with the fixed head (2) to twist bolts of different sizes; The positioning mechanism comprises a limiting opening (61), wherein the limiting opening (61) is bored on the fixed head (2) and is connected to the slideway (4); a slot rod (62) is fixedly connected in the limiting opening (61); a parts cavity (63) is opened in the moving head (3); a pressing rod (64) is slidably inserted in the parts cavity (63), and two ends of the pressing rod (64) are movably inserted to the outside of the moving head (3); a spring (65) is sleeved on the outer surface of the pressing rod (64), and the spring (65) is located in the parts cavity (63); a compression block (66) is fixedly connected to the outer surface of the pressing rod (64), and the compression block (66) is located in the parts cavity (63) and corresponds to the spring (65); one end of the pressing rod (64) is fixedly connected to a toothed ring (67), and the toothed ring (67) is located in the limiting opening (61) and corresponds to the slot rod (62).
2. The torque wrench open head that is easy to adjust according to claim 1, characterized in that: The outer surface of the fixed head (2) is engraved with a scale mark (7), and the scale mark (7) corresponds to the movable head (3).
3. The torque wrench open head that is easy to adjust according to claim 2, characterized in that: The fixing head (2) is provided with a nail removal opening (8).
4. The torque wrench open head that is easy to adjust according to claim 3, characterized in that: The fixed head (2) and the movable head (3) are both engraved with anti-slip pattern groups (9), and the two anti-slip pattern groups (9) correspond to each other.