CN111645012B - Sleeve for disassembling and assembling fastener - Google Patents

Abstract

The invention provides a sleeve for disassembling and assembling a fastener, which comprises a sleeve main body, wherein a first end part of the sleeve main body is used for being connected with a disassembling tool, and a second end part of the sleeve main body is used for being connected with the fastener; the second end part is provided with a sleeve opening, and the sleeve opening comprises a fixed nesting and at least two movable nesting; the sleeve further comprises an adjusting mechanism; the fixed nesting and each movable nesting correspond to fasteners with different sizes; the adjusting mechanism adjusts the movable nesting to slide to the cavity body to the highest point, so that the sleeve opening is exposed out of the inner wall of the adjacent movable nesting or fixed nesting. The size of the sleeve opening can be changed by adjusting, so that sleeves with multiple specifications are integrated into one sleeve, the sleeve replacement time is saved, the operation efficiency is improved, and the sleeve is convenient to carry.

Description

Sleeve for disassembling and assembling fastener

Technical Field

The invention relates to the field of fastener tools, in particular to a sleeve for disassembling and assembling a fastener.

Background

During the process of assembling or disassembling fasteners such as bolts, nuts and the like, a disassembling tool is often required to be matched with the sleeve to complete the tightening or disassembling of the fasteners. However, the head opposite side sizes of the fasteners with different sizes are different, so that the sleeves with multiple sizes are often seen in one sleeve, and in the operation process, the sleeves with corresponding models need to be replaced aiming at the fasteners with different models, so that the operation is inconvenient, and the operation efficiency is also influenced. Also, multiple cartridge sizes are extremely inconvenient to carry and manage.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, sleeves of different types need to be replaced aiming at fasteners of different types, so that the operation is inconvenient; and the multi-type sleeve is inconvenient to carry. The utility model provides a sleeve for fastener dismouting, the change is adjusted to cover sleeve mouth size accessible, makes the sleeve of a plurality of models integrated as one, practices thrift sleeve change time and promotes the operating efficiency to conveniently carry.

In order to solve the technical problem, the invention provides a sleeve for disassembling and assembling a fastener, which comprises a sleeve main body, wherein the sleeve main body is provided with a first end part and a second end part, the first end part is used for being connected with a disassembling tool, and the second end part is used for being connected with the fastener; wherein the second end of sleeve main part is provided with the cover barrel mouth, and the cover barrel mouth is used for the cover to locate the fastener surface.

The sleeve opening comprises a fixed nesting and at least two movable nesting, a cavity body is arranged in the sleeve main body, and the sleeve further comprises an adjusting mechanism. Wherein, fixed nestification is the polygon opening that sets up in the second tip of sleeve main part, and the cavity body communicates with fixed nested inside. The shape of the movable nesting is a polygon which is consistent with the shape of the fixed nesting, at least two movable nesting are mutually sleeved, and the outermost movable nesting is slidably sleeved in the fixed nesting; each movable nesting sleeve can slide along the axial direction of the sleeve opening relative to the adjacent movable nesting sleeve or the fixed nesting sleeve.

And locking mechanisms are arranged between every two adjacent movable nests and between the outermost movable nest and the fixed nest; when any movable nesting is flush with one end of the adjacent movable nesting or the fixed nesting close to the outside of the sleeve main body, the movable nesting on the inner side is locked by the locking mechanism and slides towards the outside of the sleeve main body relative to the adjacent movable nesting or the fixed nesting on the outer side; the fixed nest and each movable nest correspond to fasteners of different sizes.

The adjusting mechanism comprises an adjusting buckle, an adjusting rod, a cam and an adjusting component, wherein the adjusting buckle is U-shaped, two ends of the adjusting buckle are fixedly connected with one side of the movable nesting close to the cavity body, and each movable nesting is correspondingly provided with one adjusting buckle. The adjusting rod is rotatably arranged in the cavity body and penetrates through the adjusting buckle; the cams are arranged on the adjusting rod, each adjusting buckle corresponds to one cam, the cams corresponding to each adjusting buckle are sequentially arranged on the adjusting rod along the circumferential direction of the adjusting rod, and all the circumferential cams surround the adjusting rod by less than one circle of the adjusting rod; the adjusting component is arranged outside the sleeve main body and connected with the adjusting rod, and the adjusting component drives the adjusting rod to drive the cam to rotate around the axis direction of the adjusting rod.

When the cam rotates to be close to the top end of the corresponding adjusting buckle far away from the movable nesting, the cam is abutted against the adjusting buckle, the cam continues to rotate towards the top end, the adjusting buckle is pushed to move towards the cavity body, and therefore the movable nesting corresponding to the adjusting buckle is driven to slide towards the cavity body; when the cam rotates to the top end of the adjusting buckle, the movable nesting sleeve slides to the cavity body to the highest point, and the sleeve opening is exposed out of the inner wall of the adjacent movable nesting sleeve or the fixed nesting sleeve.

By adopting the scheme, the size of the sleeve opening is variable by arranging the movable nesting, so that the adjustable sleeve opening is suitable for fasteners of different models, the size of the sleeve opening can be adjusted and changed, the sleeves of a plurality of models are integrated into one, the sleeve replacement time is saved, the operation efficiency is improved, and the portable sleeve opening is convenient to carry.

According to another specific embodiment of the invention, the sleeve disclosed in the embodiment of the invention further comprises a sliding mechanism, wherein the sliding mechanism is arranged between every two adjacent movable nesting sleeves and between the outermost movable nesting sleeve and the fixed nesting sleeve, so that each movable nesting sleeve can slide relative to the adjacent movable nesting sleeve or the fixed nesting sleeve along the axial direction of the sleeve opening through the sliding mechanism.

By adopting the scheme, the sliding mechanism is arranged to promote the sliding between the movable nesting or between the movable nesting and the fixed nesting, so that the sliding is smooth.

According to another embodiment of the present invention, a sleeve according to an embodiment of the present invention includes: the sliding block is arranged on one side, close to the outside of the sleeve body, of the outer wall of each movable nesting, and the sliding rail is arranged on the inner wall of each movable nesting and each fixed nesting except the innermost movable nesting; the extending direction of the slide rail is parallel to the axial direction of the sleeve opening, and the slide rail is matched with the slide block. Two sliding blocks are arranged on the outer wall of each movable nesting, and the two sliding blocks are respectively arranged on two opposite sides of the outer wall of each movable nesting; two slide rails are arranged at the positions of the inner walls of the movable nesting and the fixed nesting, which are provided with the slide rails, corresponding to the slide blocks.

By adopting the scheme, the sliding mechanism is reasonable in arrangement, and the two groups of sliding blocks and the sliding rails are symmetrically arranged, so that the sliding balance is stable.

According to another specific embodiment of the invention, in the sleeve disclosed by the embodiment of the invention, the sliding block is a spring buckle, the spring buckle comprises a spring and a ball body, one end of the spring is connected with the outer wall of the movable nesting, and the other end of the spring is connected with the ball body; the sliding rail is a semi-cylindrical sliding groove, and the spring fastener can be accommodated in the sliding groove and slides along the sliding groove.

The locking mechanism comprises a first clamping groove which is arranged at one end of the sliding groove close to the outside of the sleeve main body and is used for being matched with the ball body; and when the spring fastener slides to the first clamping groove position, the movable nesting corresponding to the spring fastener and the movable nesting corresponding to the sliding groove or the fixed nesting corresponding to the sliding groove are flush with one end of the sleeve body, and the ball body is clamped in the first clamping groove to limit the sliding of the spring fastener in the sliding groove.

By adopting the scheme, the sliding block and the sliding rail are simple in structure; when the bottom ends of the adjacent movable nests are flush or the movable nests are flush with the bottom ends of the adjacent fixed nests, the locking mechanism not only locks the movable nests at the inner sides from sliding towards the outside of the sleeve main body relative to the adjacent movable nests or the fixed nests at the outer sides, but also limits the sliding towards the inside of the sleeve main body. The function of locking sliding can be realized by the aid of the spring buckle structure and the clamping groove structure on the sliding groove, the inward sliding limiting state can be released only by increasing external force for pushing sliding, and the operation is simple.

According to another specific embodiment of the present invention, in the sleeve disclosed in the embodiment of the present invention, the locking mechanism further includes a second locking groove disposed at one end of the sliding groove close to the hollow cavity, and the second locking groove is configured to match with the ball. And when the spring fastener slides to the second clamping groove position, the movable nesting corresponding to the spring fastener slides to the highest point relative to the movable nesting corresponding to the sliding groove, and the ball body is clamped in the second clamping groove to limit the sliding of the spring fastener in the sliding groove.

With the above arrangement, when the inner movable nest slides to the topmost end in the sleeve body relative to the adjacent movable nest or fixed nest, the locking mechanism also locks the sliding of the inner movable nest relative to the adjacent outer movable nest or fixed nest to the outside of the sleeve body.

According to another specific embodiment of the invention, the sleeve disclosed by the embodiment of the invention further comprises a return mechanism, and when the movable nesting sleeve moves to the highest point towards the hollow cavity relative to the adjacent movable nesting sleeve or the adjacent fixed nesting sleeve, the movable nesting sleeve is returned through the return mechanism.

By adopting the scheme, the movable nesting can be returned by the return mechanism, and the operation is convenient.

According to another specific embodiment of the invention, in the sleeve disclosed by the embodiment of the invention, the return mechanism comprises a return arc, the return arc is arranged on the adjusting rod corresponding to the outermost movable nesting, and the return arc and one side of the adjusting rod far away from the movable nesting form an oval structure; when all the movable nests move to the highest point relative to the fixed nests towards the cavity body, the cam corresponding to the outermost movable nest continues to rotate away from the top end of the corresponding adjusting rod and rotates to the lowest end of the return arc, the adjusting buckle is pushed to move towards the outside of the cavity body, the outermost movable nest is driven to slide towards the outside of the cavity body, and all the movable nests are returned.

By adopting the scheme, the return mechanism is simple in structure and easy to operate.

According to another specific embodiment of the present invention, the sleeve disclosed in the embodiments of the present invention, the adjusting member includes an adjusting knob disposed on an outer wall of the sleeve main body; the adjusting knob is connected with one end of the adjusting rod through a bearing arranged on the wall of the sleeve main body, and the adjusting rod is driven to rotate through the rotation of the adjusting knob.

By adopting the scheme, the size change of the sleeve opening can be adjusted by rotating the adjusting knob, and the sleeve opening adjusting device is simple in structure and convenient to operate.

According to another embodiment of the present invention, the sleeve is disclosed in which the other end of the adjustment lever is rotatably coupled to the sleeve body by a bearing provided on a wall of the sleeve body.

By adopting the scheme, the adjusting rod structure is more stable.

According to another specific embodiment of the invention, the sleeve disclosed by the embodiment of the invention is characterized in that scales are arranged on the adjusting knob, a pointer is arranged on the sleeve body, and the pointer points to the scales; when the adjusting knob is rotated to enable the pointer to point to a certain scale number in the scales, the inner wall of the movable nesting or the fixed nesting corresponding to the scale number is exposed out of the sleeve opening.

By adopting the scheme, an operator can conveniently adjust the size of the sleeve opening.

The invention has the beneficial effects that:

the sleeve provided by the invention has the advantages that the size of the sleeve opening is variable by arranging the movable nesting, so that the sleeve is suitable for fasteners of different types, the size of the sleeve opening can be changed by adjustment, the sleeves of multiple types are integrated into one sleeve, the sleeve replacement time is saved, the operation efficiency is improved, and the sleeve is convenient to carry.

Drawings

FIG. 1 is a schematic structural view of a sleeve for fastener installation and removal according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a movable nesting and adjusting buckle of a sleeve for disassembling and assembling a fastener according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of an adjusting rod, a cam and an adjusting member of a sleeve for dismounting a fastener according to an embodiment of the invention;

FIG. 4 is a schematic structural view of an adjusting mechanism and a movable nesting connection of a sleeve for dismounting and mounting a fastener according to an embodiment of the invention;

FIG. 5a is a schematic structural view of an adjusting rod of a sleeve for mounting and dismounting a fastener, an adjusting buckle and a corresponding cam according to an embodiment of the present invention, wherein the cam is rotated to be close to the top end of the corresponding adjusting buckle;

FIG. 5b is a schematic structural view of an adjusting rod of a sleeve for mounting and dismounting a fastener, an adjusting buckle and a corresponding cam according to an embodiment of the present invention, wherein the cam is rotated to the top end of the adjusting buckle;

FIG. 6 is an enlarged partial outside view of a movable nest with a snap fastener of a sleeve for fastener installation and removal according to an embodiment of the present invention, showing the snap fastener configuration;

FIG. 7 is an enlarged partial view of the inside of a movable nest with a slide slot of a sleeve for fastener installation and removal showing the slide slot configuration in accordance with an embodiment of the present invention;

fig. 8 is a schematic structural view of an adjusting rod of a sleeve for mounting and dismounting a fastener, an adjusting buckle provided with a return arc and a corresponding cam according to an embodiment of the invention, wherein the cam rotates to the lowest end of the return arc.

Description of reference numerals:

100: a sleeve body;

110: a first end portion; 111: square opening;

120: a second end portion;

130: a sleeve opening; 131: fixing and nesting; 132: performing active nesting;

200: an adjustment mechanism;

210: adjusting buckles; 211: a return arc;

220: adjusting a rod;

230: a cam;

240: an adjustment member; 241: adjusting a knob;

250: a bearing;

300: a sliding mechanism;

310: a slider; 311: a spring buckle; 3111: a spring; 3112: a sphere;

320: a slide rail; 321: a chute; 3211: a first card slot; 3212: and a second card slot.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides a sleeve for disassembling and assembling a fastener, which comprises a sleeve main body 100, as shown in figure 1, wherein the sleeve main body 100 is provided with a first end part 110 and a second end part 120, the first end part 110 is used for being connected with a disassembling and assembling tool, and the second end part 120 is used for being connected with the fastener; wherein the second end 120 of the sleeve body 100 is provided with a sleeve opening 130, and the sleeve opening 130 is used for being sleeved on the outer surface of the fastener.

The sleeve port 130 includes a fixed nest 131 and at least two movable nests 132, a hollow body is disposed within the sleeve body 100, and the sleeve further includes an adjustment mechanism 200. The fixed nest 131 is a polygonal opening disposed at the second end 120 of the sleeve body 100, and the hollow body is communicated with the inside of the fixed nest 131. As shown in fig. 2, the shape of the movable nest 132 is a polygon that is consistent with the shape of the fixed nest 131, at least two movable nests 132 are sleeved with each other, and the movable nest 132 at the outermost layer is slidably sleeved in the fixed nest 131; each movable nest 132 is slidable relative to an adjacent movable nest 132 or fixed nest 131 in the axial direction of the sleeve opening 130.

And as shown in fig. 2, a locking mechanism is arranged between every two adjacent movable nesting boxes 132 and between the outermost movable nesting box 132 and the fixed nesting box 131; when any movable nesting sleeve 132 is flush with one end of the adjacent movable nesting sleeve 132 or fixed nesting sleeve 131 close to the outer side of the sleeve body 100, the locking mechanism locks the movable nesting sleeve 132 at the inner side to slide relative to the adjacent movable nesting sleeve 132 or fixed nesting sleeve 131 at the outer side towards the outer side of the sleeve body 100; fixed nest 131 and each movable nest 132 correspond to different sized fasteners.

As shown in fig. 2-4, the adjusting mechanism 200 includes an adjusting buckle 210, an adjusting rod 220, a cam 230 and an adjusting member 240, wherein the adjusting buckle 210 is U-shaped, two ends of the adjusting buckle are fixedly connected to one side of the movable nests 132 close to the cavity, and one adjusting buckle 210 is correspondingly arranged on each movable nest 132. The adjusting rod 220 is rotatably arranged in the cavity body, and the adjusting rod 220 penetrates through the adjusting buckle 210; the cams 230 are arranged on the adjusting rod 220, each adjusting button 210 corresponds to one cam 230, the cams 230 corresponding to each adjusting button 210 are sequentially arranged on the adjusting rod 220 along the circumferential direction of the adjusting rod 220, and all the circumferential cams 230 surround the adjusting rod 220 by less than one circle of the adjusting rod 220; the adjusting member 240 is disposed outside the sleeve body 100 and connected to the adjusting lever 220, and the adjusting member 240 drives the adjusting lever 220 to rotate the cam 230 around the axis direction of the adjusting lever 220.

As shown in fig. 5a, when the cam 230 rotates to be close to the top end of the corresponding adjusting buckle 210 far from the movable nesting 132, the cam 230 abuts against the adjusting buckle 210, and as shown in fig. 5b, the cam 230 continues to rotate to the top end, pushing the adjusting buckle 210 to move into the cavity body, thereby driving the movable nesting 132 corresponding to the adjusting buckle 210 to slide into the cavity body; when the cam 230 rotates to the top end of the adjusting buckle, the movable nesting sleeve 132 slides to the cavity body to the highest point, and the sleeve opening 130 is exposed out of the inner wall of the adjacent movable nesting sleeve 132 or the fixed nesting sleeve 131.

Specifically, the shape of the sleeve main body 100 may be a structure with a common radial cross section being circular, and the sizes of the two ends of the sleeve main body 100 may be the same or different; other shapes may be provided as desired. The first end portion 110 may be disposed on a connecting structure of the disassembling tool, and specifically, as shown in fig. 1, the first end portion 110 may be disposed with a square opening 111 for connecting with a handle. The sleeve opening 130 is used for sleeving a fastener bolt or a nut matched with the sleeve opening 130, so that the fastener is driven to rotate by means of sleeve rotation to realize disassembly and assembly.

The fixed nesting 131 and the movable nesting 132 which are arranged on the sleeve opening 130 have different sizes, and each fixed nesting 131 or movable nesting 132 is correspondingly matched with a fastener of one type, so that if two movable nesting 132 are arranged, the sleeve opening 130 can correspond to fasteners of three types; if three live nests 132 are provided, the sleeve ports 130 may correspond to four types of fasteners, and so on. The polygonal shape of the fixed nest 131 and the movable nest 132 of the sleeve opening 130 is set according to the shape of a fastener to be detached, and may be, for example, a 6-sided shape as shown in fig. 2, an 8-sided shape, a 12-sided shape, or the like. For example, the first end 110 of the sleeve body 100 may be provided with a square opening 111 with a side length of 10mm, the sleeve opening 130 may be provided with a hexagonal fixed nest 131 with a side size of 24mm and a hexagonal movable nest 132 with side sizes of 21mm, 18mm, 16mm and 15mm in sequence, so that the sleeve may be simultaneously suitable for hexagonal bolts or nuts with side sizes of 24mm, 21mm, 18mm, 16mm and 15 mm.

The axial sliding between the adjacent movable nesting rings 132 or between the outermost movable nesting ring 132 and the fixed nesting ring 131 can be realized by arranging a sliding structure, specifically, arranging a sliding block 310 on one side of the nesting surface and arranging a sliding rail 320 on the other side; and the friction sliding of the smooth socket surface can be realized. The locking mechanism may be a structure for limiting sliding provided on the sliding structure, such as a structure for limiting the sliding of the sliding block 310 when the end position of the sliding rail 320 is set; it is also possible to provide an elastic blocking structure on one side of the sleeve-contacting surface and a groove matching the elastic blocking structure on the other side of the sleeve-contacting surface, when the movable nest 132 is flush with the adjacent movable nest 132 or fixed nest 131 at the end near the outside of the sleeve body 100, the elastic blocking structure enters the groove to limit the inner movable nest 132 from sliding towards the outside of the sleeve body 100 relative to the adjacent outer movable nest 132 or fixed nest 131, and at the same time, the blocking structure has a smooth slope on one side facing the inside of the sleeve body 100, and when the inner movable nest 132 slides towards the sleeve body 100 relative to the adjacent outer movable nest 132 or fixed nest 131, the elastic blocking structure can retract along the slope and exit the groove. When the locking mechanism locks the movable nest 132 or the fixed nest 131 at the bottom end level, the inner movable nest 132 slides outward of the sleeve main body 100 relative to the adjacent outer movable nest 132 or the fixed nest 131, so that when the outer movable nest 132 slides upward, the inner movable nest 132 at the bottom end level can slide upward at the same time.

The adjustment buckle 210 and the movable nest 132 may be integrally formed. The adjusting member 240 may be specifically an adjusting knob 241 provided outside the sleeve body 100, and rotation of the adjusting knob 241 facilitates rotation of the adjusting lever 220; or a motor and a control module arranged outside the sleeve body 100, wherein the control module controls the motor to operate according to a command to facilitate the rotation of the adjusting rod 220.

It should be noted that because the opposite sides of the sleeve mouth in the standard sleeve of the prior art have different sizes, the heights of the sleeve mouth end portions into the sleeve body are also different, for example, the height of the sleeve mouth with the opposite side size of 8mm is 4.24mm, and the height of the sleeve mouth with the opposite side size of 9mm is 4.51 mm. The inner movable nesting 132 slides inwards for at least the height of the sleeve opening 130 corresponding to the outer movable nesting 132 or the fixed nesting 131; therefore, the height of the movable nest 132 can be gradually increased from inside to outside according to different sliding distances.

The distance that each movable nest 132 slides up relative to the outer movable nest 132 or fixed nest 131 can vary depending on the required height of the outer socket opening 130 and can be achieved by design differences between the adjustment buckle 210 and the cam 230; for example, all the adjusting buttons 210 may be arranged to be flush with each other in the sleeve main body 100, that is, the top end in the height direction, the outermost ends of the cams 230 are arranged to have different heights with respect to the surface of the adjusting rod 220, and the adjusting buttons 210 are arranged to have different widths corresponding to the different heights of the cams 230, so that different sliding distances are realized by pushing the adjusting buttons 210 to move to different distances in the cavity; the top end positions of the adjusting buttons 210 in the height direction can be set to be different, and the heights of the cams 230 are set to be the same, so that different sliding distances are realized.

The movable nest 132 slides to the highest point towards the hollow body and should also be able to return, i.e. slide to a position flush with the bottom end of the outer movable nest 132 or fixed nest 131. Specifically, the cam 230 is driven by the rotation of the adjusting rod 220 to rotate to the highest point, so that the movable nest 132 slides towards the cavity body and is fixed to the highest point, the cam 230 is driven by the rotation of the adjusting rod 220 to retract, and the movable nest 132 returns by means of gravity and a sliding structure; other arrangements for enabling the active nest 132 to be repositioned are also possible.

Adopt above-mentioned scheme, through setting up activity nested 132, realize that cover barrel mouth 130 size is variable to be suitable for the fastener of different models, cover barrel mouth 130 size accessible is adjusted the change, and the sleeve that realizes a plurality of models is integrated as one, practices thrift sleeve change time and promotes the operating efficiency, and conveniently carries.

According to another embodiment of the present invention, as shown in fig. 2, the sleeve further comprises a sliding mechanism 300, wherein the sliding mechanism 300 is arranged between each two adjacent movable nests 132 and between the outermost movable nest 132 and the fixed nest 131, so that each movable nest 132 slides relative to the adjacent movable nest 132 or fixed nest 131 through the sliding mechanism 300 along the axial direction of the sleeve opening 130.

The slide mechanism 300 is a structure capable of achieving the sliding of the movable nest 132 in the axial direction of the sleeve opening 130 with respect to the adjacent movable nest 132 or fixed nest 131 by means of the slide mechanism 300. The device can specifically comprise a mechanism which realizes sliding through rolling, such as a ball, a roller and the like; the sliding block and the sliding rail are matched, wherein the sliding block is arranged on the inner movable nesting 132, and the sliding rail is arranged at the position corresponding to the outer movable nesting 132 or the fixed nesting 131; the slide rail and the slide block can also be arranged in reverse.

With the above arrangement, the sliding mechanism 300 is provided to facilitate the sliding between the movable nests 132 or between the movable nests 132 and the fixed nests 131, so that the sliding is smooth.

According to another embodiment of the present invention, as shown in fig. 2, the sliding mechanism 300 includes: a slide block 310 disposed on the outer wall of each movable nest 132 on the side close to the outside of the sleeve body 100, and a slide rail 320 disposed on the inner wall of each movable nest 132 and fixed nest 131 except the innermost movable nest 132; the sliding rail 320 extends in a direction parallel to the axial direction of the sleeve opening 130, and the sliding rail 320 is matched with the sliding block 310. Two sliding blocks 310 are arranged on the outer wall of each movable nesting 132, and the two sliding blocks 310 are respectively arranged on two opposite sides of the outer wall of each movable nesting 132; two sliding rails 320 are arranged on the inner wall of each movable nesting 132 and fixed nesting 131 of the sliding rail 320 corresponding to the position of the sliding block 310.

The sliding mode of the movable nesting 132 of the sleeve opening 130 is mainly that the inner movable nesting 132 slides towards the sleeve main body 100 relative to the outer movable nesting 132 or the fixed nesting 131, so that the sliding block 310 is arranged outside the inner movable nesting 132, and the sliding rail 320 is arranged inside the sleeve of the outer movable nesting 132 or the fixed nesting 131. And two sets of sliders 310 and sliding rails 320 are symmetrically arranged to make the sliding balance stable.

According to another embodiment of the present invention, as shown in fig. 6-7, the sliding block 310 is a spring button 311, the spring button 311 includes a spring 3111 and a ball 3112, one end of the spring 3111 is connected to the outer wall of the movable nest 132, and the other end of the spring 3111 is connected to the ball 3112; the sliding rail 320 is a semi-cylindrical sliding slot 321, and the spring catch 311 can be received in the sliding slot 321 and slide along the sliding slot 321.

The locking mechanism comprises a first clamping groove 3211 arranged at one end of the sliding groove 321 close to the outside of the sleeve main body 100, and the first clamping groove 3211 is used for matching with the ball 3112; when the spring fastener 311 slides to the first slot 3211, the movable nest 132 corresponding to the spring fastener 311 is flush with the movable nest 132 or the fixed nest 131 corresponding to the sliding slot 321 at an end close to the outside of the sleeve body 100, and the ball 3112 is clamped in the first slot 3211 to limit the sliding of the spring fastener 311 in the sliding slot 321.

By adopting the scheme, the sliding block 310 and the sliding rail 320 have simple structures; when the bottom end of the adjacent movable nesting 132 is flush or the movable nesting 132 is flush with the bottom end of the adjacent fixed nesting 131, the locking mechanism not only locks the sliding of the inner movable nesting 132 relative to the adjacent outer movable nesting 132 or fixed nesting 131 to the outside of the sleeve main body 100, but also limits the sliding to the inside of the sleeve main body 100. The function of locking and sliding can be realized by the spring fastener 311 structure and the clamping groove structure on the sliding groove 321, the limited state of inward sliding can be released only by increasing the external force of pushing and sliding, and the operation is simple.

According to another embodiment of the present invention, as shown in fig. 7, the locking mechanism further includes a second locking groove 3212 disposed at an end of the sliding groove 321 close to the hollow cavity, and the second locking groove 3212 is configured to match with the ball 3112. When the spring 3111 button 311 slides to the second slot 3212, the movable nest 132 corresponding to the spring 3111 button 311 slides to the highest point relative to the movable nest 132 corresponding to the sliding slot 321, and the ball 3112 is clamped in the second slot 3212, so as to limit the sliding of the spring button 311 in the sliding slot 321.

With the above arrangement, when the inner movable nest 132 slides to the uppermost end in the sleeve main body 100 relative to the adjacent movable nest 132 or fixed nest 131, the locking mechanism also locks the sliding of the inner movable nest 132 relative to the adjacent outer movable nest 132 or fixed nest 131 to the outside of the sleeve main body 100, and the outward sliding restriction can be released only by increasing the external force for pushing the sliding.

According to another embodiment of the invention, the sleeve further comprises a return mechanism, when the movable nesting ring 132 moves to the highest point towards the hollow body relative to the adjacent movable nesting ring 132 or fixed nesting ring 131, the movable nesting ring 132 is returned through the return mechanism.

Specifically, an elastic component may be disposed above the corresponding adjusting button 210, and the elastic component is connected to the wall inside the cavity body, and applies an elastic force to the outside of the sleeve body 100 above the adjusting button 210; when the cam 230 is at the top end of a certain adjusting buckle 210, the movable nesting 132 corresponding to the adjusting buckle 210 slides to the top end of the inner side of the sleeve main body 100, and the movable nesting 132 at the inner side should lock the bottom end of the mechanism and the movable nesting 132 corresponding to the adjusting buckle 210 at the inner side of the sleeve main body 100; when the cam 230 is rotated to disengage from the top of the adjustment buckle 210, the adjustment buckle 210 is pushed by the elastic force of the elastic component of the adjustment buckle 210 to push the corresponding movable nest 132 to return. Other arrangements may be provided to enable the active nest 132 to be repositioned.

By adopting the scheme, the movable nest 132 can return by the return mechanism, and the operation is convenient.

According to another embodiment of the present invention, as shown in fig. 8, the return mechanism includes a return arc 211, the return arc 211 is disposed on the adjusting rod 220 corresponding to the outermost movable nest 132, and forms an oval structure with a side of the adjusting rod 220 away from the movable nest 132; when all the movable nests 132 move to the highest point relative to the fixed nests 131 towards the cavity body, the cam 230 corresponding to the outermost movable nest 132 continuously rotates away from the top end of the corresponding adjusting rod 220 and rotates to the lowest end of the return arc 211, the adjusting buckle 210 is pushed to move towards the outside of the cavity body, the outermost movable nest 132 is driven to slide towards the outside of the cavity body, and all the movable nests 132 return.

Specifically, the live nests 132 are provided with a locking mechanism such that when the outermost live nest 132 is raised to the topmost, all live nests 132 inside are raised at the same height; when the adjusting rod 220 is rotated again, the cam 230 corresponding to the outermost movable nest 132 rotates downwards, when the lowest end of the return arc 211 is close to, namely the position of the oval which is symmetrical to the topmost end of the adjusting buckle, the lowest end abuts against one side of the return arc 211, the adjusting buckle 210 is continuously rotated to the lowest end position, and the movable nests 132 are pushed to move back.

By adopting the scheme, the return mechanism is simple in structure and easy to operate.

According to another embodiment of the present invention, as shown in fig. 1, 3, and 4, the adjusting member 240 includes an adjusting knob 241, the adjusting knob 241 being disposed on the outer wall of the sleeve body 100; the adjustment knob 241 is connected to one end of the adjustment lever 220 through a bearing 250 provided on the wall of the sleeve body 100, and the rotation of the adjustment lever 220 is driven by the rotation of the adjustment knob 241.

By adopting the scheme, the size change of the sleeve opening 130 can be adjusted by rotating the adjusting knob 241, and the device is simple in structure and convenient to operate.

According to another embodiment of the present invention, as shown in fig. 1, 3 and 4, the other end of the adjustment lever 220 is rotatably coupled to the sleeve body 100 by a bearing 250 provided on the wall of the sleeve body 100.

By adopting the scheme, the structure of the adjusting rod 220 is more stable.

According to another embodiment of the present invention, the adjusting knob 241 is provided with a scale (not shown in the drawings), and the sleeve body 100 is provided with a pointer, which points to the scale; when the adjusting knob 241 is rotated to make the pointer point to a certain scale number in the scale, the inner wall of the movable nesting sleeve 132 or the fixed nesting sleeve 131 corresponding to the scale number is exposed in the sleeve opening 130.

When a sleeve opening 130 with a certain side specification of 10mm is needed, only the adjusting knob 241 needs to be rotated, a pointer rotated by the adjusting knob 241 points to a scale corresponding to 10mm, the adjusting rod 220 is driven to rotate to the top end of the corresponding adjusting buckle 210 when the cam 230 corresponding to the movable nesting 132 corresponding to 10mm or the movable nesting 132 inside the fixed nesting 131 rotates, the movable nesting 132 inside the fixed nesting 131 slides upwards, and the movable nesting 132 or the fixed nesting 131 with the opposite side dimension of 10mm is exposed.

By adopting the scheme, an operator can conveniently adjust the size of the sleeve opening 130.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A sleeve for use in connection with the removal of a fastener, comprising a sleeve body having a first end for connection with a removal tool and a second end for connection with a fastener; the second end of the sleeve main body is provided with a sleeve opening, and the sleeve opening is used for being sleeved on the outer surface of the fastener; the sleeve is characterized in that the sleeve opening comprises a fixed nesting and at least two movable nesting, a cavity body is arranged in the sleeve main body, and the sleeve further comprises an adjusting mechanism; wherein the content of the first and second substances,

the fixed nest is a polygonal opening arranged at the second end of the sleeve main body, and the hollow cavity is communicated with the inside of the fixed nest;

the shape of the movable nesting is a polygon which is consistent with the shape of the fixed nesting, at least two movable nesting are mutually sleeved, and the movable nesting at the outermost layer is slidably sleeved in the fixed nesting; each movable nesting sleeve can slide along the axial direction of the sleeve opening relative to the adjacent movable nesting sleeve or the adjacent fixed nesting sleeve; and a locking mechanism is arranged between every two adjacent movable nests and between the outermost movable nest and the fixed nest; when any movable nesting sleeve is flush with one end of the adjacent movable nesting sleeve or the adjacent fixed nesting sleeve close to the outside of the sleeve body, the locking mechanism locks the movable nesting sleeve at the inner side to slide relative to the adjacent movable nesting sleeve or the adjacent fixed nesting sleeve towards the outside of the sleeve body; the fixed nesting and each movable nesting correspond to different sizes of the fasteners;

the adjusting mechanism comprises an adjusting buckle, an adjusting rod, a cam and an adjusting component, wherein,

the adjusting buckle is U-shaped, two ends of the adjusting buckle are fixedly connected with one side of the movable nesting close to the cavity body, and each movable nesting is correspondingly provided with one adjusting buckle;

the adjusting rod is rotatably arranged in the cavity body and penetrates through the adjusting buckle;

the cams are arranged on the adjusting rod, each adjusting buckle corresponds to one cam, and the cams corresponding to each adjusting buckle are sequentially arranged on the adjusting rod along the circumferential direction of the adjusting rod; and all the cams circumferentially surround the adjusting rod by less than one circle of the adjusting rod;

the adjusting component is arranged outside the sleeve main body and connected with the adjusting rod, and drives the adjusting rod to drive the cam to rotate around the axis direction of the adjusting rod; wherein the content of the first and second substances,

when the cam rotates to be close to the top end of the corresponding adjusting buckle far away from the movable nesting, the cam is abutted against the adjusting buckle, the cam continues to rotate towards the top end, the adjusting buckle is pushed to move towards the cavity body, and therefore the movable nesting corresponding to the adjusting buckle is driven to slide towards the cavity body; when the cam rotates to the top end, the movable nesting sleeve slides to the cavity body to the highest point, and the sleeve opening is exposed out of the inner wall of the adjacent movable nesting sleeve or the fixed nesting sleeve.

2. The sleeve of claim 1 further comprising a sliding mechanism disposed between each two adjacent live nests and between the outermost live nest and the fixed nest, such that each live nest slides relative to the adjacent live nest or the fixed nest in an axial direction of the sleeve port via the sliding mechanism.

3. The cartridge of claim 2, wherein the sliding mechanism comprises: the sliding block is arranged on one side, close to the outside of the sleeve body, of the outer wall of each movable nesting, and the sliding rail is arranged on the inner wall of each movable nesting and each fixed nesting except the innermost movable nesting; the extending direction of the slide rail is parallel to the axial direction of the sleeve opening, and the slide rail is matched with the slide block; and is

Two sliding blocks are arranged on the outer wall of each movable nesting, and the two sliding blocks are respectively arranged on two opposite sides of the outer wall of each movable nesting; and two sliding rails are arranged on the inner wall of each movable nesting and the inner wall of each fixed nesting, which are provided with the sliding rails, corresponding to the sliding blocks.

4. The socket of claim 3, wherein said slider is a snap fastener, said snap fastener comprising a spring and a ball, one end of said spring being connected to said nested wall and the other end of said spring being connected to said ball;

the sliding rail is a semi-cylindrical sliding groove, and the spring fastener can be accommodated in the sliding groove and slides along the sliding groove;

the locking mechanism comprises a first clamping groove which is arranged at one end of the sliding groove close to the outside of the sleeve main body, and the first clamping groove is used for being matched with the ball body; and the number of the first and second electrodes,

when the spring fastener slides to the first clamping groove position, the movable nesting corresponding to the spring fastener is parallel to one end, close to the outside of the sleeve main body, of the movable nesting or the fixed nesting corresponding to the sliding groove, and the ball body is clamped in the first clamping groove to limit the sliding of the spring fastener in the sliding groove.

5. The socket of claim 4, wherein said locking mechanism further comprises a second detent disposed on said chute proximate an end of said hollow body, said second detent for mating with said ball; and the number of the first and second electrodes,

when the spring fastener slides to the second clamping groove position, the movable nesting corresponding to the spring fastener slides to the highest point relative to the movable nesting corresponding to the sliding groove, and the ball body is clamped in the second clamping groove to limit the sliding of the spring fastener in the sliding groove.

6. A socket according to claim 5, wherein the socket further comprises a return mechanism by which the movable nest is returned when the movable nest is moved to an uppermost point towards the hollow body relative to the adjacent movable nest or fixed nest.

7. The sleeve as claimed in claim 6, wherein the return mechanism comprises a return arc, the return arc is arranged on the adjusting rod corresponding to the movable nesting at the outermost layer, and forms an oval structure with the side of the adjusting rod away from the movable nesting;

when all the movable nests move to the highest point relative to the fixed nests towards the cavity body, the cam corresponding to the outermost movable nest continues to rotate away from the top end of the corresponding adjusting rod and rotates to the lowest end of the return arc, the adjusting buckle is pushed to move towards the outside of the cavity body, the outermost movable nest is driven to slide towards the outside of the cavity body, and all the movable nests are returned.

8. The cartridge of any one of claims 1-7, wherein the adjustment member comprises an adjustment knob disposed on an outer wall of the cartridge body; the adjusting knob is connected with one end of the adjusting rod through a bearing arranged on the wall of the sleeve main body, and the adjusting rod is driven to rotate through the rotation of the adjusting knob.

9. A socket as claimed in claim 8, wherein the other end of the adjuster rod is rotatably connected to the socket body by a bearing provided on a wall of the socket body.

10. The cartridge of claim 8, wherein the adjustment knob is provided with a scale, and the cartridge body is provided with a pointer, the pointer pointing to the scale; when the adjusting knob is rotated to enable the pointer to point to a certain scale number in the scales, the inner wall of the movable nesting or the fixed nesting corresponding to the scale number is exposed out of the sleeve opening.

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