A quick wrench and method of use

Abstract

This invention relates to the technical field of maintenance tools, and more particularly to a quick-release wrench and its method of use, including the aforementioned quick-rotation nut method and a reciprocating mechanism, comprising a housing, a reciprocating groove formed inside the housing, and a guide rail fixedly connected inside the housing. A reversing component is adapted to be installed inside the housing, a pushing component is adapted to be installed inside the housing, a transmission component is adapted to be installed outside the pushing component, and a rotating component is adapted to be installed outside the transmission component. Under the action of the reciprocating mechanism, after determining the work requirement of tightening or loosening the nut, the reversing component is adjusted to put the device in a tightening or loosening state. At this time, the reciprocating wrench can always rotate the nut in a unified direction to tighten or loosen the nut. In this process, the reciprocating stroke of the wrench is fully utilized, improving work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of repair tools, and more particularly to a quick-release wrench and its method of use. Background Technology

[0002] Existing ratchet wrenches can easily tighten or loosen nuts by reciprocating the handle within a narrow range. However, such ratchet wrenches still have drawbacks. When the ratchet wrench is working, only about half of the stroke is used to tighten or loosen the nut, and the rest of the stroke is only used to return the handle to its original position. This ratchet wrench with only half of the effective working stroke will reduce work efficiency. Summary of the Invention

[0003] In view of the problem that the ratchet wrench in the prior art has only about half of its effective working stroke, the present invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a quick wrench, which enables the wrench to tighten or loosen nuts during the reciprocating movement of the handle.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quick-release wrench, including the aforementioned method for quickly rotating a nut, and...

[0006] A reciprocating mechanism includes a housing, a reciprocating groove formed inside the housing, and a guide rail fixedly connected inside the housing. A reversing component is adapted to be installed inside the housing, a pushing component is adapted to be installed inside the housing, a transmission component is adapted to be installed outside the pushing component, and a rotating component is adapted to be installed outside the transmission component.

[0007] The handheld mechanism includes a front tube sleeve adapted to be installed outside the reversing component, a fixed post fixedly connected inside the front tube sleeve, a ring rotatably connected outside the fixed post, a connecting plate fixedly connected outside the ring, a snap-fit ​​component adapted to be installed inside the front tube sleeve, a connecting component adapted to be installed outside the fixed post, and a rotating component adapted to be installed outside the front tube sleeve.

[0008] In a preferred embodiment of the quick wrench described in this invention, the reversing component includes a slide table slidably connected inside the reciprocating groove, a guide tube fixedly connected to the outside of the slide table, and a traction cable disposed inside the guide tube.

[0009] In a preferred embodiment of the quick wrench of the present invention, the pushing component includes an arc rod fixedly connected to the outside of the slide, an arc plate fixedly connected to the outside of the arc rod, a push plate rotatably connected to the outside of the arc plate, a toothed plate fixedly connected to the outside of the arc plate, and a first spring disposed between the arc plate and the push plate.

[0010] The traction cable is slidably connected inside the slide table and the front tube, and is also slidably connected inside the arc plate. One end of the traction cable is connected to the outside of the push plate, and the other end of the traction cable is fixedly connected to the outside of the connecting plate.

[0011] In a preferred embodiment of the quick-release wrench of the present invention, the transmission component includes a support body fixedly connected inside the housing, and a small gear rotatably connected to the outside of the support body.

[0012] The rotating component includes a large gear rotatably connected inside the housing, a mounting body fixedly connected to the bottom end of the large gear, and a driven component adapted to be installed on the top end of the large gear.

[0013] In a preferred embodiment of the quick-release wrench of the present invention, the driven component includes a base fixedly connected to the top of the large gear, a mounting post fixedly connected to the outside of the base, a cavity opened inside the mounting post, a limiting body disposed inside the cavity, a lever fixedly connected to the outside of the limiting body, and a second spring disposed between the lever and the base.

[0014] In a preferred embodiment of the quick wrench of the present invention, the snap-fit ​​component includes a first baffle fixedly connected inside the front tube, a snap rod slidably connected inside the first baffle, a second baffle fixedly connected to one end of the snap rod, and a third spring disposed between the second baffle and the first baffle.

[0015] The other end of the lever is set as an inclined surface.

[0016] In a preferred embodiment of the quick wrench described in this invention, the connecting component includes a rotating block rotatably connected inside the fixed post, a connecting post fixedly connected outside the rotating block, and a lever fixedly connected outside the connecting post, and an irregular cavity formed inside the connecting post.

[0017] In a preferred embodiment of the quick wrench of the present invention, the rotating component includes a sliding column slidably connected inside the irregular cavity, a disc fixedly connected to one end of the sliding column, a square linkage column fixedly connected to the outside of the disc, a fourth spring sleeved on the outside of the square linkage column, a cylinder fixedly connected to the other end of the sliding column, a handheld sleeve fixedly connected to the outside of the cylinder, and a slot fixedly connected inside the handheld sleeve.

[0018] The present invention also provides a method of use.

[0019] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a method of use, comprising the aforementioned quick-release wrench, and...

[0020] First, position the plug of the quick-release wrench onto the target nut, and adjust the reversing component according to the operational requirements to select the tightening or loosening mode. By reciprocating the rotation of the handle, the plug of the quick-release wrench will always rotate in the same direction, thereby driving the nut to always rotate in the same direction.

[0021] In a preferred embodiment of the method of use described in this invention, after determining the working requirement of tightening or loosening, the corresponding rotating handle is used to adjust the reversing mechanism so that the pushing component does not interfere with the movement of tightening or loosening the nut.

[0022] The beneficial effects of the present invention are as follows: Under the action of the reciprocating mechanism, after determining the work requirement of tightening or loosening the nut, the reversing component is adjusted to put the device in the tightening or loosening state. At this time, the reciprocating wrench can always rotate the nut in the same direction to tighten or loosen the nut. In this process, the reciprocating stroke of the wrench is utilized, which improves work efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic cross-sectional view of the reciprocating mechanism of the present invention.

[0026] Figure 3 This is a front view schematic diagram of the pushing component of the present invention.

[0027] Figure 4 This is a top view of the pushing component of the present invention.

[0028] Figure 5 This is an enlarged structural schematic diagram of the rotating component of the present invention.

[0029] Figure 6 This is a partial cross-sectional view of the handheld mechanism of the present invention.

[0030] Figure 7 This is a partially enlarged cross-sectional view of the handheld mechanism of the present invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Reference Figures 1-5 This is the first embodiment of the present invention, which provides a quick-release wrench, comprising:

[0037] The reciprocating mechanism 100 includes a housing 101, a reciprocating groove 102 formed inside the housing 101, and a guide rail 103 fixedly connected inside the housing 101. A reversing component 104 is adapted to be installed inside the housing 101, a pushing component 105 is adapted to be installed inside the housing 101, a transmission component 106 is adapted to be installed outside the pushing component 105, and a rotating component 107 is adapted to be installed outside the transmission component 106.

[0038] The handheld mechanism 200 includes a front tube 201 adapted to be installed on the outside of the reversing component 104, a fixed post 202 fixedly connected inside the front tube 201, a ring 203 rotatably connected to the outside of the fixed post 202, a connecting plate 204 fixedly connected to the outside of the ring 203, a snap-fit ​​component 205 adapted to be installed inside the front tube 201, a connecting component 206 adapted to be installed on the outside of the fixed post 202, and a rotating component 207 adapted to be installed on the outside of the front tube 201.

[0039] Furthermore, the reversing component 104 includes a slide 104a slidably connected inside the reciprocating groove 102, a guide tube 104b fixedly connected to the outside of the slide 104a, and a traction cable 104c disposed inside the guide tube 104b.

[0040] Furthermore, the pushing component 105 includes an arc rod 105a fixedly connected to the outside of the slide table 104a, an arc plate 105b fixedly connected to the outside of the arc rod 105a, a push plate 105c rotatably connected to the outside of the arc plate 105b, a toothed plate 105d fixedly connected to the outside of the arc plate 105b, and a first spring 105e disposed between the arc plate 105b and the push plate 105c.

[0041] The traction cable 104c is slidably connected inside the slide table 104a and the front tube 201, and is slidably connected inside the arc plate 105b. One end of the traction cable 104c is connected to the outside of the push plate 105c, and the other end of the traction cable 104c is fixedly connected to the outside of the connecting plate 204.

[0042] Specifically, the transmission component 106 includes a support 106a fixedly connected inside the housing 101, and a pinion 106b rotatably connected to the outside of the support 106a.

[0043] The rotating component 107 includes a large gear 107a rotatably connected inside the housing 101, a mounting body 107b fixedly connected to the bottom end of the large gear 107a, and a driven component 107c adapted to be installed on the top end of the large gear 107a.

[0044] More specifically, the driven component 107c includes a base 107c-1 fixedly connected to the top of the large gear 107a, a mounting post 107c-2 fixedly connected to the outside of the base 107c-1, a cavity 107c-3 opened inside the mounting post 107c-2, a limiting body 107c-4 disposed inside the cavity 107c-3, a lever 107c-5 fixedly connected to the outside of the limiting body 107c-4, and a second spring 107c-6 disposed between the lever 107c-5 and the base 107c-1.

[0045] In use, taking tightening a nut as an example, after adjusting the reversing component 104, connect the mounting body 107b to the nut, and then rotate the slide table 104a clockwise. On the left side of the device, the slide table 104a drives the arc plate 105b to rotate clockwise via the arc rod 105a. The arc plate 105b drives the push plate 105c to rotate clockwise. During the movement, the push plate 105c presses against the teeth of the large gear 107a, causing the push plate 105c to push the large gear 107a to rotate clockwise. The large gear 107a drives the nut to rotate clockwise via the mounting body 107b, thus tightening the nut. Furthermore, during the clockwise rotation of the arc plate 105b, it also drives the toothed plate 105d to rotate clockwise, and the toothed plate 105d... The pinion 106b rotates clockwise, and its teeth press against the lever 107c-5. Under the pressure, the lever 107c-5 moves closer to the base 107c-1. At this time, the second spring 107c-6 is compressed. When the pinion 106b teeth no longer contact the lever 107c-5, the lever 107c-5 returns to its initial position under the rebound force of the second spring 107c-6. During this process, the pinion 106b cannot drive the large gear 107a to rotate via the lever 107c-5. On the right side of the device, under the action of the reversing component 104, the right push plate 105c is always in contact with the arc plate 105b in the tightening state. Therefore, the push plate 105c cannot contact the large gear 107a, thus preventing the right push plate 105c from interfering with the tightening process. When the arc plate 105b rotates clockwise, it drives the toothed plate 105d to rotate clockwise. The toothed plate 105d drives the pinion 106b to rotate clockwise. At this time, the teeth of the pinion 106b press against the dial block 107c-5, causing the dial block 107c-5 to move closer to the base 107c-1. During this process, the right pinion 106b is also unable to drive the large gear 107a to rotate through the dial block 107c-5.

[0046] After the slide table 104a rotates clockwise to its limit position, it rotates counterclockwise. On the left side of the device, the slide table 104a rotates counterclockwise, driving the push plate 105c to rotate counterclockwise via the arc rod 105a and the arc plate 105b. The push plate 105c is pressed by the teeth of the large gear 107a, causing it to move closer to the arc plate 105b. When the toothed plate 105d rotates counterclockwise, it drives the small gear 106b to rotate counterclockwise. At this time, the teeth of the small gear 106b are in contact with the dial block 107c-5. During the counterclockwise rotation of the small gear 106b, the teeth push the dial block 107c-5 to rotate clockwise. The dial block 107c-5 drives the large gear 107a to rotate clockwise via the base 107c-1. The large gear 107a drives the nut to rotate clockwise via the mounting body 107b, thus achieving the purpose of tightening the nut. On the right side of the device, the counterclockwise rotation of the toothed plate 105d drives the pinion 106b to rotate counterclockwise. The teeth of the pinion 106b press against the lever block 107c-5, causing the teeth of the pinion 106b to push the lever block 107c-5 to rotate clockwise. The lever block 107c-5 drives the large gear 107a to rotate clockwise through the base 107c-1. The clockwise rotation of the large gear 107a drives the nut to rotate clockwise, thus tightening the nut.

[0047] In summary, the reciprocating mechanism enables the device to be in a tightening or loosening state by adjusting the reversing component after determining the need to tighten or loosen the nut. At this time, the reciprocating wrench can always rotate the nut in the same direction to tighten or loosen it. During this process, the reciprocating stroke of the wrench is utilized, which improves work efficiency.

[0048] Example 2

[0049] Reference Figure 6 and Figure 7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a snap-fit ​​component 205 is provided, including a first baffle 205a fixedly connected inside the front tube 201, a snap rod 205b slidably connected inside the first baffle 205a, a second baffle 205c fixedly connected to one end of the snap rod 205b, and a third spring 205d disposed between the second baffle 205c and the first baffle 205a.

[0050] The other end of the lever 205b is set as an inclined surface.

[0051] Furthermore, the connecting component 206 includes a rotating block 206a rotatably connected inside the fixed post 202, a connecting post 206b fixedly connected to the outside of the rotating block 206a, a lever 206c fixedly connected to the outside of the connecting post 206b, and a shaped cavity 206d opened inside the connecting post 206b.

[0052] Furthermore, the rotating component 207 includes a sliding column 207a slidably connected inside the irregular cavity 206d, a disk 207b fixedly connected to one end of the sliding column 207a, a square linkage column 207c fixedly connected to the outside of the disk 207b, a fourth spring 207d sleeved on the outside of the square linkage column 207c, a cylinder 207e fixedly connected to the other end of the sliding column 207a, a handheld tube 207f fixedly connected to the outside of the cylinder 207e, and a slot 207g fixedly connected inside the handheld tube 207f.

[0053] In use, as mentioned in Embodiment 2 above, before starting work, it is necessary to adjust the reversing component 104 to confirm the need to tighten or loosen the nut, ensuring that the push plate 105c on one side does not interfere with the work. This embodiment provides a specific adjustment method for the reversing component 104. Taking tightening the nut as an example, the operator holds the hand-held cylinder 207f and rotates it clockwise half a turn. During this process, the hand-held cylinder 207f drives the sliding column 207a to rotate clockwise through the cylinder 207e. The sliding column 207a drives the connecting column 206b to rotate clockwise through the disc 207b and the square linkage column 207c. The connecting column 206b drives the lever 206c to rotate clockwise. During the rotation, the lever 206c drives the connecting plate 204 to rotate clockwise. The connecting plate 204 drives the traction cable 104c to rotate clockwise. The rotation of the traction cable 104c will drive the push plate 105c on the right side. 5c moves closer to the arc plate 105b, ensuring that the right push plate 105c does not interfere with the tightening operation. During rotation, the inclined surface of one end of the clamping rod 205b presses against the outer wall of the groove 207g. Under the pressure, the clamping rod 205b slides backward and stretches the fourth spring 207d. After the clamping rod 205b is aligned with the groove 207g, the rebound force of the fourth spring 207d enables the second baffle 205c to drive the clamping rod 205b into the groove 207g. At this time, the hand-held cylinder 207f cannot rotate, ensuring the stability of the tightening process. After completing the work, pull the hand-held cylinder 207f backward. The hand-held cylinder 207f drives the disc 207b to move backward through the cylinder 207e and the sliding column 207a. At this time, the fourth spring 207d is stretched, the locking rod 205b moves out of the locking slot 207g, and after rotating the hand-held cylinder 207f counterclockwise by half a turn, release the hand-held cylinder 207f. Under the action of the rebound force of the fourth spring 207d, the hand-held cylinder 207f returns to the initial position.

[0054] In summary, after confirming the need to tighten or loosen the nut, rotate the hand-held cylinder 207f, and use the traction cable 104c to bring the push plate 105c on one side close to the arc plate 105b, so as to ensure that the push plate 105c will not interfere with the tightening or loosening process. After rotating the hand-held cylinder 207f, the locking component keeps the hand-held cylinder 207f in the rotated position to ensure the stability of the tightening or loosening of the nut.

[0055] Example 3

[0056] Reference Figures 1 to 7 This is the third embodiment of the present invention. Unlike the second embodiment, this embodiment provides a method of use, which includes the following steps:

[0057] First, position the plug or jaws of the quick-release wrench onto the target nut, and adjust the reversing mechanism according to the operational requirements to select the tightening or loosening mode. By reciprocating the rotation of the handle, the plug or jaws of the quick-release wrench will always rotate in the same direction to complete the work of quickly rotating the nut.

[0058] Specifically, after determining the tightening or loosening work requirement, the corresponding rotating handle is used to adjust the reversing mechanism so that the pushing component 105 does not interfere with the movement of tightening or loosening the nut.

[0059] In summary, this method of quickly rotating the nut allows workers to connect the mounting body to the nut after determining whether to tighten or loosen it and adjusting the corresponding tightening or loosening state. By reciprocating the wrench, the nut can be rotated in the same direction at all times, thus achieving the goal of efficiently rotating the nut.

[0060] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0061] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A quick-release wrench, characterized in that: include, The reciprocating mechanism (100) includes a housing (101), a reciprocating groove (102) formed inside the housing (101), and a guide rail (103) fixedly connected inside the housing (101). A reversing component (104) is adapted to be installed inside the housing (101), a pushing component (105) is adapted to be installed inside the housing (101), a transmission component (106) is adapted to be installed outside the pushing component (105), and a rotating component (107) is adapted to be installed outside the transmission component (106). The handheld mechanism (200) includes a front tube (201) adapted to be installed on the outside of the reversing component (104), a fixed post (202) fixedly connected inside the front tube (201), a ring (203) rotatably connected to the outside of the fixed post (202), a connecting plate (204) fixedly connected to the outside of the ring (203), a snap-fit ​​component (205) adapted to be installed inside the front tube (201), a connecting component (206) adapted to be installed on the outside of the fixed post (202), and a rotating component (207) adapted to be installed on the outside of the front tube (201). The reversing component (104) includes a slide (104a) slidably connected inside the reciprocating groove (102), a guide tube (104b) fixedly connected to the outside of the slide (104a), and a traction cable (104c) disposed inside the guide tube (104b). The pushing component (105) includes an arc rod (105a) fixedly connected to the outside of the slide (104a), an arc plate (105b) fixedly connected to the outside of the arc rod (105a), a push plate (105c) rotatably connected to the outside of the arc plate (105b), a toothed plate (105d) fixedly connected to the outside of the arc plate (105b), and a first spring (105e) disposed between the arc plate (105b) and the push plate (105c). The traction cable (104c) is slidably connected to the slide table (104a) and the front tube (201) inside, the traction cable (104c) is slidably connected to the arc plate (105b) inside, one end of the traction cable (104c) is connected to the outside of the push plate (105c), and the other end of the traction cable (104c) is fixedly connected to the outside of the connecting plate (204). The transmission component (106) includes a support (106a) fixedly connected inside the housing (101) and a pinion (106b) rotatably connected to the outside of the support (106a). The rotating component (107) includes a large gear (107a) rotatably connected inside the housing (101), a mounting body (107b) fixedly connected to the bottom end of the large gear (107a), and a driven component (107c) adapted to be installed on the top end of the large gear (107a). The driven assembly (107c) includes a base (107c-1) fixedly connected to the top of the large gear (107a), a mounting post (107c-2) fixedly connected to the outside of the base (107c-1), a cavity (107c-3) opened inside the mounting post (107c-2), a limiting body (107c-4) disposed inside the cavity (107c-3), a lever (107c-5) fixedly connected to the outside of the limiting body (107c-4), and a second spring (107c-6) disposed between the lever (107c-5) and the base (107c-1). The snap-fit ​​component (205) includes a first baffle (205a) fixedly connected inside the front tube (201), a snap rod (205b) slidably connected inside the first baffle (205a), a second baffle (205c) fixedly connected to one end of the snap rod (205b), and a third spring (205d) disposed between the second baffle (205c) and the first baffle (205a). The other end of the lever (205b) is set as an inclined surface; The connecting component (206) includes a rotating block (206a) rotatably connected inside the fixed post (202), a connecting post (206b) fixedly connected to the outside of the rotating block (206a), a lever (206c) fixedly connected to the outside of the connecting post (206b), and a shaped cavity (206d) opened inside the connecting post (206b). The rotating component (207) includes a sliding column (207a) slidably connected inside the irregular cavity (206d), a disk (207b) fixedly connected to one end of the sliding column (207a), a square linkage column (207c) fixedly connected to the outside of the disk (207b), a fourth spring (207d) sleeved on the outside of the square linkage column (207c), a cylinder (207e) fixedly connected to the other end of the sliding column (207a), a handheld tube (207f) fixedly connected to the outside of the cylinder (207e), and a slot (207g) fixedly connected inside the handheld tube (207f).

2. A method of use, characterized in that: Including the quick-release wrench as described in claim 1, and, First, position the plug of the quick-release wrench onto the target nut, and adjust the reversing component according to the operational requirements to select the tightening or loosening mode. By reciprocating the rotation of the handle, the plug of the quick-release wrench will always rotate in the same direction, thereby driving the nut to always rotate in the same direction.

3. The method of use according to claim 2, characterized in that: After determining the tightening or loosening work requirement, rotate the corresponding handle to adjust the reversing mechanism so that the pushing component (105) does not interfere with the movement of tightening or loosening the nut.

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