Multi-model integrated wrench
By designing the hollow main rod, swing arm and rotary rod structure of multi-model integrated wrench, the problem that traditional wrench cannot adapt to multiple screw models is solved, and the effect of stabilizing and tightening of multiple screws and reducing manufacturing costs is achieved.
Patent Information
- Application Number
- CN202420879618.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Traditional wrench is a single model and cannot adapt to multiple screw models, resulting in low working efficiency and deforming the inner corner of the screw when used frequently, making the press rod easy to bend, and the manufacturing cost is high.
Design a multi-model integrated wrench, adopting hollow main rod, swing arm, rotary rod and press rod structure, push the press rod top push the swing arm through the rotary rod to open the inner corner of the screw, and use the reset part and the conical press rod end to improve Stability and structural integrity.
It realizes stable elasticity and tightness of various screw models, avoids the pressure rod falling out and bent, reduces manufacturing costs, and enhances the stability and convenience of use of wrench.
Smart Images
Figure CN222155393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wrench, in particular to a multi-model integrated wrench. Background Art
[0002] Traditional wrenches are all of a single model, and one model corresponds to tightening and loosening a type of hexagon socket screw or torx screw. During the installation and disassembly process of the hexagon socket screw or torx screw, due to the large number of screw models, it is necessary to repeatedly switch different models of wrenches to rotate different screws, resulting in low work efficiency. In addition, after repeated disassembly using the existing single-model wrench, the inner angle of the screw will expand and deform until the thread is damaged. To this end, the utility model discloses a wrench that can be used for multiple types of screws, but the original solution has the following problems: 1. The rotating rod and the pressure rod are matched by magnets. During the working process, the pressure rod may be separated from the rotating rod and fall out of the main rod due to insufficient suction, etc., which is not stable. 2. One end of the pressure rod is located inside the rotating rod and needs to be made thinner, so it is easy to bend. 3. The rotating rod is threadedly connected to the inner wall of the main rod. Because the rotating rod is long, a longer threaded hole needs to be opened in the main rod, which increases the manufacturing cost. Utility Model Content
[0003] The utility model aims at the technical problems existing in the prior art and provides a multi-model integrated wrench, which has a more stable structure, lower cost and can avoid bending of the pressure rod.
[0004] The utility model adopts the following technical solution to solve its technical problems: a multi-model integrated wrench, comprising a main rod and a plurality of swing arms, wherein the main rod is a hollow structure, the plurality of swing arms are respectively rotatably connected to one end of the main rod, and the plurality of swing arms are distributed along the circumference of the main rod; the utility model also comprises a rotary rod and a pressure rod, wherein the pressure rod is located inside the main rod, the rotary rod is threadedly connected to the inner side surface of the main rod, and the rotary rod is butted against one end of the pressure rod, when the rotary rod rotates relative to the main rod and pushes the pressure rod to move toward one end of the main rod, the other end of the pressure rod pushes each swing arm, so that the plurality of swing arms are spread open and support the corresponding inner angles of the screw; a reset component is matched between the pressure rod and the main rod, so that when the rotary rod rotates in the opposite direction relative to the main rod, the pressure rod is reset in a direction away from one end of the main rod.
[0005] Furthermore, the other end of the pressure rod is in a conical shape that is wide inside and narrow outside.
[0006] Furthermore, the reset member is a spring and is sleeved outside the pressure rod, and two ends of the spring respectively press against a first limiting portion provided on the outer side of the pressure rod and a second limiting portion provided on the inner side of the main rod.
[0007] Furthermore, the first limiting portion and the second limiting portion are step surfaces respectively and are arranged opposite to each other.
[0008] Furthermore, the swing arm is an integrated structure, and its rotation axis is perpendicular to the radial direction of the main rod where the swing arm is located; the swing arm is triangular in shape, and of its three end angles, two of the end angles constitute one end and the other end of the swing arm, and the remaining end angle faces the inner side of the main rod, one end of the swing arm is rotatably connected to one end of the main rod, and the other end of the swing arm is used to support the corresponding inner angle of the screw.
[0009] Furthermore, one end of the swing arm is rotatably connected to one end of the main rod through a pressure plate.
[0010] Furthermore, a protrusion is provided at a portion of the swing arm that is used to cooperate with the corresponding inner angle of the screw, and the protrusion has an obtuse-angle structure that can enter the inner angle of the hexagon socket screw, and the obtuse-angle structure is adapted to the inner angle of the hexagon socket screw; or, the protrusion has an acute-angle structure that can enter the inner angle of the plum screw, and the acute-angle structure is adapted to the inner angle of the plum screw.
[0011] Furthermore, the rotating rod is a screw, and its head is exposed outside the other end of the main rod.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model also includes a rotating rod and a pressure rod. The pressure rod is located inside the main rod. The rotating rod is threadedly connected to the inner side of the main rod, and the rotating rod is butted against one end of the pressure rod. When the rotating rod rotates relative to the main rod and pushes the pressure rod to move toward one end of the main rod, the other end of the pressure rod pushes against each swing arm, so that the plurality of swing arms are spread open and against the corresponding inner angle of the screw. A reset member is provided between the pressure rod and the main rod to reset the pressure rod in a direction away from one end of the main rod when the rotating rod rotates in the opposite direction relative to the main rod. This structure of the utility model increases the stability of the structure by pushing the pressure rod to push each swing arm, and resets the pressure rod through the reset member when the rotating rod rotates in the opposite direction relative to the main rod, thereby preventing the pressure rod from falling out of the main rod, shortening the length of the threaded hole of the main rod, and reducing the manufacturing cost. At the same time, since the rotating rod is butted against one end of the pressure rod, the pressure rod can be thickened to avoid bending and the like.
[0014] 2. The end of the other end of the pressure rod is in a cone shape that is wide inside and narrow outside. The utility model can achieve the effect of the pressure rod moving toward one end of the main rod to open the swing arm through the cone-shaped structure of the other end of the pressure rod.
[0015] 3. The swing arm is an integrated structure. This structure of the utility model reduces the use of parts and is easy to install.
[0016] 4. The swing arm is provided with a protrusion at the position where it cooperates with the corresponding inner angle of the screw, so that the utility model is more secure when loosening or tightening the screw, and avoids the swing arm from being separated from the screw when loosening or tightening the screw.
[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the utility model of a multi-model integrated wrench is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is an exploded schematic diagram of the first embodiment of the utility model;
[0019] Figure 2 This is a cross-sectional schematic diagram of the first embodiment of the utility model when the loosenable screw is at its smallest size;
[0020] Figure 3 It is a cross-sectional schematic diagram of the swing arm of the first embodiment of the utility model during the expansion process;
[0021] Figure 4 It is a cross-sectional schematic diagram of the first embodiment of the utility model when the loose and tightenable screw is at its maximum;
[0022] Figure 5 This is a front view of the first embodiment of the utility model;
[0023] Figure 6 yes Figure 5 Schematic diagram of the cross section along AA;
[0024] Figure 7 It is a partial three-dimensional structural schematic diagram of the main rod of the first embodiment of the utility model;
[0025] Figure 8 It is a bottom view of the main rod of the first embodiment of the utility model;
[0026] Fig. 9 It is a schematic diagram of the limiting rod pressing the secondary rotating shaft in the first embodiment of the utility model;
[0027] Fig.10 It is a three-dimensional structural schematic diagram of the swing arm of the first embodiment of the utility model;
[0028] Fig.11 is a top view of the swing arm of the first embodiment of the utility model;
[0029] Fig.12 It is a three-dimensional structural schematic diagram of the pressing plate of the first embodiment of the utility model;
[0030] Fig.13 This is a three-dimensional structure diagram of the first embodiment of the utility model. Figure 1 (Use two swing arms);
[0031] Fig.14This is a schematic diagram of the cooperation between the protrusion and the hexagon socket screw in the first embodiment of the utility model. Figure 1 (Use two swing arms);
[0032] Fig.15 This is a three-dimensional structure diagram of the first embodiment of the utility model. Figure 2 (Using three swing arms);
[0033] Fig.16 This is a schematic diagram of the cooperation between the protrusion and the hexagon socket screw in the first embodiment of the utility model. Figure 2 (Using three swing arms);
[0034] Fig.17 This is a three-dimensional structure diagram of the first embodiment of the utility model. Figure 3 (Using six swing arms);
[0035] Fig.18 This is a schematic diagram of the cooperation between the protrusion and the hexagon socket screw in the first embodiment of the utility model. Figure 3 (Using six swing arms);
[0036] Fig.19 It is a schematic diagram of the three-dimensional structure of the swing arm of the second embodiment of the utility model;
[0037] Fig. 20 is a top view of the swing arm of the second embodiment of the utility model;
[0038] Fig.21 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model. Figure 1 (Use two swing arms);
[0039] Fig. 22 This is a schematic diagram of the cooperation between the protrusion and the plum screw in the second embodiment of the utility model Figure 1 (Use two swing arms);
[0040] Fig.23 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model. Figure 2 (Using three swing arms);
[0041] Fig.24 This is a schematic diagram of the cooperation between the protrusion and the plum screw in the second embodiment of the utility model Figure 2 (Using three swing arms);
[0042] Fig.25 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model. Figure 3 (Using six swing arms);
[0043] Fig.26 This is a schematic diagram of the cooperation between the protrusion and the plum screw in the second embodiment of the utility model Figure 3 (Using six swing arms);
[0044] In the figure: 1. main rod; 11. locking slot; 111. first locking slot; 112. second locking slot; 12. jack; 13. opening; 14. second limiting portion; 15. threaded hole; 2. swing arm; 21. rotating shaft; 211. main rotating shaft; 212. secondary rotating shaft; 22. protrusion; 3. pressure plate; 31. limiting rod; 32. long hole; 4. rotating rod; 5. pressure rod; 51. first limiting portion; 6. spring; 7. screw. DETAILED DESCRIPTION
[0045] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the orientation or position relationship indicated by "inside", "outside", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0046] In addition, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "provided with", "connection", etc. should be understood in a broad sense. 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 the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0047] Embodiment 1
[0048] See also Figure 1-Figure 18 As shown, the utility model is a multi-model integrated wrench, comprising a main rod 1 and a plurality of swing arms 2, wherein the main rod 1 is a hollow structure, and the plurality of swing arms 2 are respectively rotatably connected to one end of the main rod 1, and the plurality of swing arms 2 are distributed along the circumference of the main rod 1. It also comprises a rotating rod 4 and a pressing rod 5, wherein the pressing rod 5 is located inside the main rod 1, the rotating rod 4 is threadedly connected to the inner side of the main rod 1, and the rotating rod 4 is butted against one end of the pressing rod 5, when the rotating rod 4 rotates relative to the main rod 1 and pushes the pressing rod 5 to move toward one end of the main rod 1, the other end of the pressing rod 5 pushes against each swing arm 2, so that the plurality of swing arms 2 are spread apart and support the corresponding inner angles of the screw. A reset member is provided between the pressing rod 5 and the main rod 1, so as to cause the pressing rod 5 to reset in a direction away from one end of the main rod 1 when the rotating rod 4 rotates in the opposite direction relative to the main rod 1.
[0049] The other end of the pressure rod 5 is in a conical shape that is wide inside and narrow outside.
[0050] The reset member is a spring 6, which is sleeved outside the pressure rod, and the two ends of the spring 6 respectively press against the first limit portion 51 set on the outer side of the pressure rod 5 and the second limit portion 14 set on the inner side of the main rod 1. Specifically, the first limit portion 51 and the second limit portion 14 are step surfaces and are arranged opposite to each other, but not limited to this.
[0051] The rotating rod 4 is a screw, and its head is exposed outside the other end of the main rod 1.
[0052] The swing arm 2 is an integrated structure, and its rotation axis is perpendicular to the radial direction of the main rod 1 where the swing arm 2 is located. The swing arm 2 is triangular in shape, and two of its three end angles constitute one end and the other end of the swing arm 2, and the remaining end angle faces the inside of the main rod 1. One end of the swing arm 2 is rotatably connected to one end of the main rod 1, and the other end of the swing arm 2 is used to support the corresponding inner angle of the screw.
[0053] One end of the swing arm 2 is rotatably connected to one end of the main rod 1 through a pressure plate 3. Specifically, one end of the main rod 1 is provided with a locking groove 11 corresponding to each swing arm 2, and one end of the swing arm 2 is provided with a rotating shaft 21, which is installed in the locking groove 11. The pressure plate 3 presses the rotating shaft 21 of the swing arm 2 into the locking groove 11 to limit the rotating shaft 21 of the swing arm 2 from exiting the locking groove 11, and due to the pressing effect of the pressure plate 3 on the rotating shaft 21, the swing arm 2 will not shake randomly and can stay at any position. Two adjacent swing arms 2 share the same pressure plate 3. Specifically, the number of swing arms 2 is six, and the number of pressure plates 3 is three.
[0054] The rotating shaft 21 includes a main rotating shaft 211 and two auxiliary rotating shafts 212 arranged on opposite sides of the main rotating shaft 211, and the main rotating shaft 211 and the auxiliary rotating shaft 212 are located on the same axis. The locking groove 11 includes a first locking groove 111 corresponding to the main rotating shaft 211 and two second locking grooves 112 connected to the first locking groove 111 and located on opposite sides of the first locking groove 111, and the two auxiliary rotating shafts 212 correspond to the two second locking grooves 112 one by one. The pressing plate 3 is provided with two limiting rods 31 arranged in parallel, and the two limiting rods 31 extend into the corresponding second locking grooves 112 respectively and press the auxiliary rotating shafts 212 in the second locking grooves 112. The adjacent second locking grooves 112 in the adjacent locking grooves 11 are connected to each other, and each limiting rod 31 cooperates with the auxiliary main shafts 212 in the two adjacent second locking grooves 112 respectively.
[0055] Preferably, the first locking groove 111 extends radially toward the main rod 1 and penetrates the side wall surface of the main rod 1, thereby increasing the swing amplitude of the swing arm 2 and making the working space larger.
[0056] The side wall of the main rod 1 is provided with a plug hole 12 leading to the corresponding second lock slot 112 corresponding to each limit rod 31, and the limit rod 31 passes through the plug hole 12 and enters the corresponding second lock slot 112. Specifically, the cross section of the limit rod 31 is semicircular to facilitate entering the plug hole 12, and the flat side of the semicircle presses the auxiliary shaft 212 to play a good clamping effect. The lock slot 11 is provided with an opening 13 for the shaft 21 to enter and exit at the end surface of one end of the main rod 1.
[0057] The pressure plate 3 is installed on the outer side of the main rod 1 by means of screws 7, and the pressure plate 3 is provided with an elongated hole 32 for the screw 7 to pass through. The elongated hole 32 extends along the axial direction of the main rod 1. The pressure plate 3 can be fine-tuned to achieve the tightening of the limiting rod 31 on the secondary rotating shaft. A threaded hole 15 corresponding to the screw 7 is provided on the outer side of the main rod 1.
[0058] The swing arm 2 is provided with a protrusion 22 at the position for matching with the corresponding inner angle of the screw. The protrusion 22 has an obtuse structure that can enter the inner angle of the hexagon socket screw, and the obtuse structure is adapted to the inner angle of the hexagon socket screw. Specifically, the horizontal projection of the protrusion 22 is composed of a trapezoid and an isosceles obtuse triangle, and the base of the trapezoid is co-lateral with the hypotenuse of the isosceles obtuse triangle. When the distance between the six swing arms 2 is minimized, the side surfaces of two adjacent protrusions 22 can fit together.
[0059] Specifically, when working, the head of the rotating rod 4 is rotated by hand to drive the pressure rod 5 downward, so that the other end of the pressure rod 5 opens the bottom swing arm 2, so that the protrusion 22 of the swing arm 2 hits the inner corner of the screw. Because the other end of the pressure rod 5 firmly clamps the swing arm 2, the swing arm 2 can no longer rotate. At this time, the protrusion 22 of the swing arm 2 fits tightly with the inner corner of the screw, and there is no gap between the two, so that the utility model can be firmly clamped with the screw, and you can rest assured to use a wrench or torque wrench to forcefully rotate the head nut of the main rod 1 to loosen or tighten the screw. Figure 2 As shown, when the two swing arms 2 are close together at their end angles toward the inner side of the main rod 1, the screws that can be loosened and tightened in the utility model are minimal. Figure 3 As shown, the rotating rod 4 rotates to drive the pressing rod 5 to move downward, so that the other end of the pressing rod 5 gradually opens the swing arm 2 to change the size of the tightening screw of the utility model. Figure 4 As shown, when the top end of the other end of the pressure rod 5 contacts the swing arm 2, the size of the screw that can be loosened and tightened in the utility model is the largest.
[0060] In this embodiment, the utility model can loosen or tighten hexagon socket screws of any size between 2-10 mm.
[0061] In actual operation, due to the small inner diameter of 2mm and 2.5mm hexagon socket screws, only two swing arms 2 are needed to expand the other four swing arms 2 to their maximum. Due to the pressing effect of the pressure plate 3, the other four swing arms 2 remain in the maximum expanded position and are left idle. Only two swing arms 2 are used to hold the inner angle of the hexagon socket screws for tightening. Fig.13 , 14 As shown in the figure, since the 2mm and 2.5mm hexagon socket screws do not require much torque, two swing arms 2 are sufficient.
[0062] When tightening a 3mm hexagon socket screw, only three swing arms 2 are needed to hold the inner corner of the hexagon socket screw for tightening, and the other three swing arms 2 are left at the maximum expanded position. Fig.15 , 16 As shown in the figure, since the 3mm hexagon socket screw does not require too much torque, it is sufficient to use three swing arms 2 to open them.
[0063] When tightening or loosening a 4-10 mm hexagon socket screw, all six swing arms 2 can be placed into the inner corner of the hexagon socket screw to tighten or loosen it. Fig.17 , 18 As shown, the six swing arms 2 can fully meet their corresponding torque requirements.
[0064] If you want to adapt to more complex work scenarios, you can prepare three wrenches at the same time to deal with the above three situations respectively.
[0065] The utility model is a multi-model integrated wrench, in which the rotary rod 4 pushes the pressure rod 5 to push each swing arm 2, and the pressure rod 5 is reset by the reset member when the rotary rod 4 rotates in the opposite direction relative to the main rod 1, thereby increasing the stability of the structure, preventing the pressure rod 5 from falling out of the main rod 1, and shortening the length of the threaded hole of the main rod 1, thereby reducing the manufacturing cost. At the same time, since the rotary rod 4 is in abutment with one end of the pressure rod 5, the pressure rod 5 can be thickened to avoid bending and the like.
[0066] Embodiment 2
[0067] See also Figure 19-Figure 26 As shown, a multi-model integrated wrench of the utility model is different from the first embodiment in that the protrusion 22 of the swing arm 2 has an acute angle structure that can enter the inner angle of the plum screw, and the acute angle structure is adapted to the inner angle of the plum screw.
[0068] In this embodiment, the utility model can loosen or tighten any type of T10-T45 plum screws.
[0069] In actual operation, due to the small inner diameter of the T10 plum screw, only two swing arms 2 are needed to tighten it, so that the other four swing arms 2 are expanded to the maximum. Due to the pressing effect of the pressure plate 3, the other four swing arms 2 stay in the maximum expanded position and are left idle. Only two swing arms 2 are used to hold the inner corner of the plum screw for tightening. Fig.21 , 22 As shown in the figure. Since the T10 plum screw itself does not require much torque, two swing arms 2 are sufficient.
[0070] When tightening or loosening a T15 plum screw, only three swing arms 2 are needed to support the inner corners of the plum screw for tightening or loosening, and the other three swing arms 2 are left at their maximum expanded position. Fig.23 , 24 As shown in the figure. Since the T15 plum screw does not require too much torque, use three swing arms 2 to open them to tighten them enough.
[0071] When tightening or loosening a T20-T45 plum screw, all six swing arms 2 can be placed in the inner corner of the plum screw to tighten or loosen it. Fig.25 , 26 As shown, the six swing arms 2 can fully meet their corresponding torque requirements.
[0072] If you want to adapt to more complex work scenarios, you can prepare three wrenches at the same time to deal with the above three situations respectively.
[0073] The utility model provides a multi-model integrated wrench, and the unrelated parts are the same as those in the prior art or can be implemented by using the prior art.
[0074] The above embodiments are only used to further illustrate a multi-model integrated wrench of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.
Claims
1. A multi-model integrated wrench, comprising a main rod and a plurality of swing arms, wherein the main rod is a hollow structure, the plurality of swing arms are rotatably connected to one end of the main rod, and the plurality of swing arms are distributed along the circumference of the main rod; characterized in that: The pressure rod is located inside the main rod, the rotary rod is threadedly connected to the inner side of the main rod, and the rotary rod is butted against one end of the pressure rod. When the rotary rod rotates relative to the main rod and pushes the pressure rod to move toward one end of the main rod, the other end of the pressure rod pushes each swing arm to make the several swing arms open and support the corresponding inner angles of the screw. A reset component is provided between the pressure rod and the main rod to cause the pressure rod to reset in a direction away from one end of the main rod when the rotary rod rotates in the opposite direction relative to the main rod.
2. The multi-model integrated wrench according to claim 1, characterized in that: The other end of the pressure rod is in a conical shape that is wide inside and narrow outside.
3. The multi-model integrated wrench according to claim 1, characterized in that: The reset member is a spring and is sleeved outside the pressure rod, and two ends of the spring respectively abut against a first limit portion provided on the outer side of the pressure rod and a second limit portion provided on the inner side of the main rod.
4. The multi-model integrated wrench according to claim 3, characterized in that: The first limiting portion and the second limiting portion are respectively step surfaces and are arranged opposite to each other.
5. The multi-model integrated wrench according to claim 1, characterized in that: The swing arm is an integrated structure, and its rotation axis is perpendicular to the radial direction of the main rod where the swing arm is located; the swing arm is triangular in shape, and of its three end angles, two of the end angles constitute one end and the other end of the swing arm, and the remaining end angle faces the inner side of the main rod. One end of the swing arm is rotatably connected to one end of the main rod, and the other end of the swing arm is used to support the corresponding inner angle of the screw.
6. The multi-model integrated wrench according to claim 5, characterized in that: One end of the swing arm is rotatably connected to one end of the main rod through a pressure plate.
7. The multi-model integrated wrench according to claim 1 or 5, characterized in that: The portion of the swing arm used to cooperate with the corresponding inner angle of the screw is provided with a protrusion, and the protrusion has an obtuse angle structure that can enter the inner angle of the hexagon socket screw, and the obtuse angle structure is adapted to the inner angle of the hexagon socket screw; or, the protrusion has an acute angle structure that can enter the inner angle of the plum screw, and the acute angle structure is adapted to the inner angle of the plum screw.
8. The multi-model integrated wrench according to claim 1, characterized in that: The rotating rod is a screw, and the head of the screw is exposed outside the other end of the main rod.