CN112901621A - Multipurpose expansion screw and tightening tool - Google Patents
Multipurpose expansion screw and tightening tool Download PDFInfo
- Publication number
- CN112901621A CN112901621A CN202110201899.3A CN202110201899A CN112901621A CN 112901621 A CN112901621 A CN 112901621A CN 202110201899 A CN202110201899 A CN 202110201899A CN 112901621 A CN112901621 A CN 112901621A
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- expansion
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- 239000000463 material Substances 0.000 claims abstract description 16
- 230000007613 environmental effect Effects 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
A multi-purpose expansion screw and tightening tool comprising: an expansion portion and a ferrule portion; the expansion part is matched with the ferrule part for use; the expansion part is automatically fixed in a hole which is drilled in advance, can also adapt to holes made of different materials, and has great environmental adaptability; the ferrule part is arranged in the expansion part and has two different fixing modes, so that different use requirements can be met; the whole can make and be applicable to multiple in service behavior, can be fine with the hole of different materials in fixed, further, also have multiple connected mode with the object installation that needs to fix, very big improvement suitability and security.
Description
Technical Field
The invention relates to the field of hardware tools, in particular to a multipurpose expansion screw and a tightening tool.
Background
The expansion screw is generally a metal expansion screw, and the expansion screw is fixed by utilizing the wedge-shaped slope to promote expansion to generate friction bond force so as to achieve the fixing effect. One end of the screw is provided with threads, and the other end of the screw is provided with conicity. The outer surface of the steel pipe is covered with an iron sheet, a plurality of notches are arranged on one half of an iron sheet cylinder (steel pipe), the iron sheet cylinder (steel pipe) and the steel pipe are plugged into a hole drilled on the wall together, then a nut is locked, the nut pulls a screw outwards to pull the taper into the iron sheet cylinder, and the iron sheet cylinder is expanded and then is tightly fixed on the wall; however, the existing common structure has weak fastening performance and is not very reliable in fixation, and if the load has large vibration, the load may be loosened, so that the common structure is not recommended to be used for installing ceiling fans and the like; therefore, a multi-purpose expansion screw and a tightening tool are needed, the fixation needs to be firm, and the use modes need to be various.
Disclosure of Invention
Aiming at the problems, the invention provides a multipurpose expansion screw and a tightening tool, aiming at solving the problems of infirm connection and single use mode of the existing expansion screw.
The technical scheme adopted by the invention is as follows: a multipurpose expansion screw comprising: an expansion portion and a ferrule portion; the expansion part is matched with the ferrule part for use;
furthermore, the expansion part is automatically fixed in a hole which is punched in advance, can also adapt to holes made of different materials, and has great environmental adaptability; the ferrule part is arranged in the expansion part and has two different fixing modes, so that different use requirements can be met;
further, the expansion part comprises: the device comprises a rotating shaft c, a shell b, a chuck, an expansion clamping mechanism, a knife-shaped clamping piece, a pawl and a ratchet wheel; the rotating shaft c is rotatably arranged in the shell b, a ratchet wheel is arranged at one end of the rotating shaft c, a chuck is fixedly arranged at the other end of the rotating shaft c, and a circular hole in the chuck is matched with a cylinder arranged on the twisting disc a; the lower end of the chuck is provided with a ratchet wheel, and a round hole on the chuck is matched with a cylinder on the screwing disc b; a plurality of grooves are formed in the shell b, knife-shaped clamping pieces are slidably mounted in the grooves, and springs arranged on the knife-shaped clamping pieces are fixedly connected with the shell b; and a plurality of grooves are formed in the two ends of the shell b, pawls are arranged in the grooves in a sliding mode, springs arranged on the pawls are fixedly connected with the shell b, and the pawls are matched with the ratchet wheels.
Furthermore, the locking mechanism comprises two threaded sleeve rods a, two threaded sleeves, two connecting rods and two expansion pieces, wherein one threaded sleeve rod a is fixedly connected with one end of the rotating shaft c, the other threaded sleeve rod a is rotatably installed on the shell b, a chuck is arranged on the threaded sleeve rod a, the two threaded sleeves are slidably installed on the threaded sleeve rod a, the threaded sleeve rings are in threaded fit with the threaded sleeve rods a, a plurality of cylinders are arranged on the threaded sleeve rings, the connecting rods are rotatably installed on the cylinders, a plurality of symmetrical cylinders are arranged in the middle of the shell b, the connecting rods are rotatably installed on the cylinders, and one ends of the opposite connecting rods are rotatably connected with the cylinders on two sides of the expansion pieces; the thread loop rod a is driven by the chuck to rotate, the thread loop ring on the thread loop rod a is driven by the thread loop rod a to move, and the thread loop ring is matched with the connecting rod, so that the expansion sheet can be supported, and the expansion sheet is clamped and fixed with the inner wall of the hole.
Further, the expansion sheet is a thorn-shaped sheet or a plane sheet.
Furthermore, the thorn-shaped sheet is provided with sharp thorns, and the thorn-shaped sheet can be used in holes with soft and fragile materials, such as holes on wood and soft cement;
furthermore, a plurality of plane bulges are arranged on the plane sheet, and the plane sheet is suitable for holes with hard materials, such as holes in steel blocks and steel ingots.
Further, the collar part is a movable buckle mechanism or a screwing fixing mechanism.
Further, a multi-purpose expansion screw, wherein said ferrule portion comprises a movable snap mechanism; the activity buckle mechanism includes: the device comprises a threaded sleeve rod b, a hexagonal nut a, a gasket a, a hexagonal nut b, a threaded rod a, a clamping block, a clamping rod b and a sleeve rod; the thread arranged on the outer side of the threaded sleeve rod b is matched with the thread inside the rotating shaft c, and the threaded sleeve rod b can be arranged inside the rotating shaft c; the hexagonal nut a is fixedly arranged at one end of the threaded sleeve rod b; a loop bar is arranged inside the threaded loop bar b, a plurality of sliding grooves are formed inside the loop bar, a clamping block is arranged inside each groove in a sliding mode, and a spring arranged at one end of each clamping block is fixedly connected with the loop bar; a circular hole is formed in the sleeve rod, a clamping rod b is slidably mounted in the circular hole, a plurality of circular jacking blocks are arranged on the clamping rod b, and the jacking blocks are matched with the grooves in the clamping blocks; the clamping rod a can be arranged in the sleeve rod, and a groove arranged on the clamping rod a is matched with the clamping block; the threaded rod a is fixedly arranged at one end of the clamping rod a, and two slidably-arranged gaskets a are arranged on the threaded rod a; the hexagonal nut b is installed at one end of the threaded rod a, and threads on the hexagonal nut b are matched with the threads of the threaded rod a in a threaded mode.
Further, a multipurpose expansion screw, wherein said ferrule portion includes a twist-off securement mechanism; screw and move fixed establishment and include: the thread sleeve rod c, the hexagon nut c, the gasket b, the hexagon nut d and the threaded rod b; the thread arranged on the outer side of the threaded sleeve rod c is matched with the thread inside the rotating shaft c, and the threaded sleeve rod c can be arranged inside the rotating shaft c; the ab0 expansion part is fixedly arranged at one end of the threaded sleeve rod c; the threaded rod b can be arranged in the threaded sleeve rod c, and threads on the threaded rod b are matched with threads in the threaded sleeve rod c and are in threaded fit; two slidably mounted gaskets b are arranged on the threaded rod b; the hexagonal nut d is installed on the threaded rod b, and the threads inside the hexagonal nut d are matched with the threads on the threaded rod b and are in threaded fit.
Further, comprising a tool portion for tightening a multipurpose expansion screw according to one to eight of the claims; the tool part is matched with the ferrule part for use; the tool part can be used manually or can be arranged on a common electric drill for use.
Further, the tool portion includes: the spark plug wrench comprises a spark plug wrench, a shell a, a change-over switch, a screwing disc a, a screwing disc b, a rotating shaft a, a rotating shaft b, a straight gear a and a straight gear b; an inner gear, a top bead; one end of the spark plug wrench is matched with a groove at one end of the shell a, and the groove of the shell a is also suitable for a drill bit of a common electric drill; the change-over switch is slidably arranged in a groove on the shell a; the screwing plate a is rotatably arranged in the shell a, the screwing plate b is rotatably arranged in the shell a, a plurality of round holes are formed in one ends of the shell a and the screwing plate b, ejecting beads are slidably arranged in the round holes, and a spring arranged at one end of each ejecting bead is fixedly connected with the screwing plate a and the screwing plate b; the rotating shaft a is rotatably arranged inside the shell a, the rotating shaft b is rotatably arranged inside the shell a, a plurality of round holes are formed in the rotating shaft a and the rotating shaft b, and the round holes are matched with the top beads; the straight gear a is fixedly arranged at one end of the rotating shaft b, the straight gear b is fixedly arranged at one end of the rotating shaft a, the internal gear is slidably arranged in the shell a, the internal gear is meshed with the straight gear a and the straight gear b, and the internal gear is fixedly connected with one end of the change-over switch.
Due to the adoption of the technical scheme, the invention has the following advantages:
(1) a tool part: the change-over switch is manually adjusted to drive the inner gear to move, so that the expansion part can be driven to work by using the tool part, and when the expansion part is screwed down, the top ball is bounced off the rotating shaft a or the rotating shaft b, so that idling is generated, and the expansion part is prevented from being damaged and lost; the function that can adjust the pretightning force has been realized, very big avoided causing the damage and then cause economic loss to the inflation part when torsion is too big, further increased the security, improved work efficiency.
(2) An expansion part: when the hole that the material was beaten is installed to the inflation part in, the sword type card is died with the inner wall card in hole because of the elasticity messenger sword type card of spring, the screw lasso makes the inflation piece strut with the inner wall card in hole die with connecting rod cooperation motion, at this moment, the pawl of shell b upside dies with the ratchet card on the inboard chuck because of the elasticity of spring, whole and hole fixing card die, the dead function of whole and wall body card has been realized, and for traditional inflation screw, more firm and stable, it is not fragile, further improved life and then reduce cost, high durability and convenient installation.
(3) A movable buckle mechanism; when the expansion part is installed, a spanner is used for clamping the hexagon nut a to drive the threaded sleeve rod b to be screwed into the rotating shaft c; so that the clamping rod a and the loop bar are clamped; screwing off the hexagon nut b, taking off one gasket a, installing an article to be fixed, and screwing the hexagon nut b; when the clamping rod a needs to be taken down, the clamping rod b can be propped by the slender cylinder to move downwards, and the clamping rod a is taken down; realized the specific using-way to the inflation part, the installation is simple, and it is simple to dismantle, can satisfy most use scenes, very big increase work efficiency.
(4) Screwing the fixing mechanism: when the expansion part is installed, a wrench is used for clamping the hexagon nut c to drive the threaded sleeve rod c to be screwed into the rotating shaft c; screwing the threaded rod b into the threaded sleeve rod c, and fixing the object to be fixed through the hexagon nut d; realized the specific use mode to inflation part, the installation is simple, can be applicable to the fixed mode of not frequently dismantling, connects the fastening, is difficult for droing, very big increase work efficiency, improved the security.
(5) The whole can make and be applicable to multiple in service behavior, can be fine with the hole of different materials in fixed, further, also have multiple connected mode with the object installation that needs to fix, very big improvement suitability and security.
Drawings
FIG. 1 is an overall schematic view of the present invention.
Fig. 2 and 3 are schematic views of the tool of the present invention in its entirety, in cross-section and exploded.
FIG. 4 is a schematic cross-sectional view of an expanded portion and ferrule portion of the present invention.
Fig. 5 and 6 are schematic views of the expanded portion and a cross section of the present invention.
Fig. 7 and 8 are schematic views of the expansion part of the invention.
Fig. 9 is a schematic view of an intumescent sheet of the invention.
Fig. 10 is a schematic view of the movable buckle mechanism of the present invention, with a cross section and exploded.
FIG. 11 is a cross-sectional view of the screwing fixture of the present invention.
Reference numerals: 1-a tool part; 2-an expansion section; 3-a ferrule portion; a 3-movable snap mechanism; b 3-screwing the fixing mechanism; 101-spark plug wrench; 102-housing a; 103-a change-over switch; 104-screwing disc a; 105-screwing disc b; 106-axis of rotation a; 107-axis of rotation b; 108-spur gear a; 109-spur gear b; 110-internal gear; 111-top bead; 201-rotation axis c; 202-housing b; 203-a chuck; 204-threaded shank a; 205-a threaded collar; 206-a connecting rod; 207-expansion sheet; 208-knife card; 209-pawl; 210-a ratchet wheel; a 207-thorn-shaped sheet; b 207-planar sheet; a 301-threaded sleeve rod b; a 302-hexagon nut a; a 303-spacer a; a 304-hexagonal nut b; a 305-threaded rod a; a 306-jamming rod a; a 307-fixture block; a 308-clamping rod b; a 309-loop bar; b 301-threaded shank c; b 302-hexagonal nut c; b 303-spacer b; b 304-hexagonal nut d; b 305-threaded rod b.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, 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 referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Embodiments, as shown in fig. 1-11, a multipurpose expansion screw, comprising: an expansion portion 2 and a ferrule portion 3; the expansion part 2 is used with the ferrule part 3;
the expansion part 2 is automatically fixed in a hole which is punched in advance, can also adapt to holes made of different materials, and has great environmental adaptability; the ferrule part 3 is arranged in the expansion part 2 and has two different fixing modes, so that different use requirements can be met;
the expansion section 2 includes: the rotating shaft c201, the shell b202, the chuck 203, the expansion blocking mechanism, the knife-shaped clamping piece 208, the pawl 209 and the ratchet wheel 210; the rotating shaft c201 is rotatably arranged inside the shell b202, one end of the rotating shaft c201 is provided with a ratchet wheel 210, the other end of the rotating shaft c201 is fixedly provided with a chuck 203, and a round hole in the chuck 203 is matched with a cylinder arranged on the screwing disc a 104; the lower end of the chuck 203 is provided with a ratchet wheel 210, and a round hole on the chuck 203 is matched with a cylinder on the screwing disc b 105; a plurality of grooves are formed in the shell b202, a knife-shaped clamping piece 208 is slidably mounted in each groove, and a spring arranged on each knife-shaped clamping piece 208 is fixedly connected with the shell b 202; the two ends of the shell b202 are provided with a plurality of grooves, the grooves are internally provided with pawls 209 in a sliding manner, the springs arranged on the pawls 209 are fixedly connected with the shell b202, and the pawls 209 are matched with the ratchet wheel 210.
In an optional implementation manner of the embodiment of the present invention, except for the same components as in the previous embodiment, the locking mechanism includes two threaded rods a204, two threaded collars 205, two connecting rods 206, and an expansion piece 207, where one threaded rod a204 is fixedly connected to one end of the rotating shaft c201, the other threaded rod a204 is rotatably installed on the housing b202, the threaded rod a204 is provided with one chuck 203, two threaded collars 205 are provided, the threaded collar 205 is slidably installed on the threaded rod a204, the threaded collar 205 is in threaded fit with the threaded rod a204, the threaded collar 205 is provided with a plurality of cylinders, the cylinders are rotatably installed with the connecting rods 206, the middle portion of the housing b202 is provided with a plurality of symmetrical cylinders, the cylinders are rotatably installed with the connecting rods 206, and one end of the opposite connecting rod 206 is rotatably connected to the cylinders on both sides of the expansion piece 207; the threaded sleeve rod a204 is driven by the chuck 203 to rotate, the threaded sleeve rod a204 drives the threaded ferrule 205 on the threaded sleeve rod a to move, and the threaded ferrule 205 is matched with the connecting rod 206, so that the expansion sheet 207 is supported, and the expansion sheet 207 is clamped and fixed with the inner wall of the hole.
In an alternative embodiment of this embodiment of the present invention, the expansion sheet 207 is a stab type sheet a207 or a flat sheet b207, except for the same components as in the previous embodiment.
In an alternative implementation manner of the embodiment of the present invention, except for the same components as those in the previous embodiment, the thorn-shaped sheet a207 is provided with sharp thorns, and the thorn-shaped sheet a207 can be used in holes with softer and weaker materials, such as holes on wood and softer cement;
in an alternative implementation manner of the embodiment of the present invention, besides the same components as those in the previous embodiment, the planar sheet b207 is provided with a plurality of planar protrusions, and the planar sheet b207 is suitable for holes with relatively hard material, such as holes in steel blocks or steel ingots.
In an alternative embodiment of the present invention, the ferrule portion 3 is a movable snap mechanism a3 or a screw-on fixing mechanism b3, except for the same parts as in the previous embodiment.
In an alternative embodiment of the present invention, a multipurpose expansion screw, except for the same parts as the previous embodiment, is characterized in that said ferrule portion 3 comprises a movable snap mechanism a 3; the movable catch mechanism a3 includes: the thread sleeve rod ba301, the hexagonal nut aa302, the gasket aa303, the hexagonal nut ba304, the threaded rod aa305, the clamping rod aa306, the clamping block a307, the clamping rod ba308 and the sleeve rod a 309; the thread arranged on the outer side of the threaded sleeve rod ba301 is matched with the thread inside the rotating shaft c201, and the threaded sleeve rod ba301 can be installed inside the rotating shaft c 201; the hexagonal nut aa302 is fixedly arranged at one end of the threaded sleeve rod ba 301; a loop bar a309 is arranged inside the threaded loop bar ba301, a plurality of sliding grooves are formed inside the loop bar a309, a clamping block a307 which is installed in a sliding mode is arranged inside each groove, and a spring arranged at one end of each clamping block a307 is fixedly connected with the loop bar a 309; a round hole is formed in the sleeve rod a309, a clamping rod ba308 is slidably mounted in the round hole, a plurality of round ejector blocks are arranged on the clamping rod ba308, and the ejector blocks are matched with the grooves in the clamping blocks a 307; the clamping rod aa306 can be arranged inside the sleeve rod a309, and a groove formed in the clamping rod aa306 is matched with the clamping block a 307; the threaded rod aa305 is fixedly arranged at one end of the clamping rod aa306, and two slidably-arranged gaskets aa303 are arranged on the threaded rod aa 305; the hexagonal nut ba304 is mounted on one end of the threaded rod aa305, and the thread on the hexagonal nut ba304 is engaged with the thread of the threaded rod aa305, and is in threaded engagement.
In an alternative embodiment of the present invention, a multipurpose expansion screw, except for the same parts as the previous embodiment, is characterized in that said ferrule portion 3 comprises screwing and fixing means b 3; the screwing fixture b3 includes: a threaded sleeve rod cb301, a hexagonal nut cb302, a washer bb303, a hexagonal nut db304 and a threaded rod bb 305; the outer side of the threaded sleeve rod cb301 is provided with threads which are matched with the threads inside the rotating shaft c201, and the threaded sleeve rod cb301 can be installed inside the rotating shaft c 201; the ab0 expansion part 2 is fixedly arranged at one end of the threaded sleeve rod cb 301; the threaded rod bb305 can be arranged inside the threaded sleeve cb301, and threads on the threaded rod bb305 are matched with threads inside the threaded sleeve cb301 in a threaded manner; two slidably mounted gaskets bb303 are arranged on the threaded rod bb 305; the hexagonal nut db304 is mounted on the threaded rod bb305, and the threads inside the hexagonal nut db304 are engaged with the threads on the threaded rod bb305, and are in threaded engagement.
An alternative embodiment of the invention, apart from the same parts as the previous embodiment, comprises a tool part 1, said tool part 1 being used for tightening a multipurpose expansion screw according to one to eight of the claims; the tool part 1 is matched with the ferrule part 3 for use; the tool part 1 can be used manually or can be arranged on a common electric drill for use.
In an alternative embodiment of the present invention, the tool part 1 comprises, in addition to the same components as in the previous embodiment: spark plug wrench 101, housing a102, change-over switch 103, screwing disk a104, screwing disk b105, rotating shaft a106, rotating shaft b107, spur gear a108, spur gear b 109; an internal gear 110, a top bead 111; one end of the spark plug wrench 101 is matched with a groove at one end of the shell a102, and the groove of the shell a102 is also suitable for drill bits of common electric drills; the switch 103 is slidably mounted in a groove on the shell a 102; the screwing plate a104 is rotatably installed inside the shell a102, the screwing plate b105 is rotatably installed inside the shell a102, one end of the shell a102 and one end of the screwing plate b105 are provided with a plurality of round holes, the round holes are internally and slidably provided with the top beads 111, and a spring arranged at one end of each top bead 111 is fixedly connected with the screwing plate a104 and the screwing plate b 105; the rotating shaft a106 is rotatably installed inside the shell a102, the rotating shaft b107 is rotatably installed inside the shell a102, a plurality of round holes are formed in the rotating shaft a106 and the rotating shaft b107, and the round holes are matched with the top beads 111; spur gear a108 is fixedly arranged at one end of rotating shaft b107, spur gear b109 is fixedly arranged at one end of rotating shaft a106, internal gear 110 is slidably arranged inside housing a102, internal gear 110 is meshed with spur gear a108 and spur gear b109, and internal gear 110 is fixedly connected with one end of switch 103.
The working principle is as follows:
the working principle of the tool part 1 is as follows: firstly, a change-over switch 103 is manually adjusted, the change-over switch 103 drives an internal gear 110 to move, the internal gear 110 is meshed with a spur gear b109 or a spur gear a108, at the moment, the internal gear 110 is clamped with the spur gear b109 or the spur gear a108, namely, a shell a102 is clamped with the spur gear a108 or the spur gear b109, when the internal gear 110 is clamped with the spur gear b109, the shell a102 is rotated, even if the spur gear b109 rotates, the spur gear b109 drives a rotating shaft a106 to rotate, a groove of the rotating shaft a106 and a top bead 111 on a screwing disc a104 are in a clamping state at the moment, namely, the rotating shaft a106 drives the screwing disc a104 to rotate; similarly, the spur gear a108 drives the screwing disc b105 to rotate; the chuck 203 can be driven to rotate by the screwing disc a104 and the screwing disc b105, namely, the expansion part 2 can be driven to work by the tool part 1, when the expansion part 2 is screwed down, in order to avoid damage to the expansion part 2, when the rotating force is too large, the ejecting ball 111 overcomes the elastic force of the spring, the ejecting ball 111 and the rotating shaft a106 or the rotating shaft b107 are flicked, so that idling is generated, and damage to the expansion part 2 and loss are avoided; the function that can adjust the pretightning force has been realized, very big avoided causing the damage and then causing economic loss to expansion part 2 when torsion is too big, further increased the security, improved work efficiency.
The working principle of the expansion part 2 is: when the expansion part 2 is installed in a hole punched by a material, the knife-shaped clamping piece 208 is clamped with the inner wall of the hole due to the elastic force of the spring, namely the shell b202 is clamped with the inner part of the hole, so that the expansion part 2 cannot easily rotate; at this time, the chuck 203 on the rotating shaft c201 is driven to rotate by the tool part 1, the chuck 203 drives the rotating shaft c201 to rotate, the rotating shaft c201 drives the threaded sleeve rod a204 on the lower side to rotate, the threaded sleeve rod a204 drives the threaded sleeve ring 205 on the threaded sleeve rod to rotate, the threaded sleeve ring 205 is matched with the connecting rod 206, so that the expansion sheet 207 is supported, the expansion sheet 207 is clamped and fixed with the inner wall of the hole, and at this time, the pawl 209 arranged on the lower side of the shell b202 is clamped with the ratchet wheel 210 on the rotating shaft c201, so that the rotating shaft c201 cannot rotate; at this time, the other chuck 203 is rotated, the chuck 203 drives the upper threaded sleeve rod a204 to rotate, the threaded sleeve rod a204 drives the threaded sleeve ring 205 on the chuck to move, the threaded sleeve ring 205 and the connecting rod 206 are matched to move, so that the expansion sheet 207 is expanded to be clamped with the inner wall of the hole, and at this time, the pawl 209 on the upper side of the shell b202 is clamped with the ratchet wheel 210 on the inner chuck 203 due to the elasticity of the spring, so that the upper threaded sleeve rod a204 cannot rotate; the whole body is fixedly clamped with the hole, and the device can be suitable for holes made of different materials and with different apertures; the function of blocking the whole wall body is realized, and compared with the traditional expansion screw, the expansion screw is more stable and stable, is not easy to damage, further prolongs the service life, reduces the cost, and is simple to use and convenient to install.
The working principle of the movable buckle mechanism a3 is as follows; when the expansion part 2 is installed, a wrench is used for clamping the hexagon nut aa302 to drive the threaded sleeve rod ba301 to be screwed into the rotating shaft c 201; at this time, the clamping rod aa306 is inserted into the sleeve rod a309, the clamping rod aa306 clamps the clamping block a307, the clamping block a307 moves outwards, and when the clamping rod aa306 moves to a specified position, the groove on the clamping rod aa306 is clamped with the clamping block a307, so that the clamping rod aa306 is clamped with the sleeve rod a 309; at this time, the hexagon nut ba304 can be unscrewed, one gasket aa303 is removed, an article to be fixed is installed, and then the hexagon nut ba304 is screwed; when the clamping rod aa306 is required to be removed, the elongated cylinder can be used to abut against the clamping rod ba308 to move downwards, the protrusion on the clamping rod ba308 abuts against the groove on the clamping block a307 to enable the clamping block a307 to move outwards, and the clamping rod aa306 and the sleeve rod a309 are bounced open, so that the clamping rod aa306 can be removed; realized the specific use mode to inflation part 2, the installation is simple, and it is simple to dismantle, can satisfy most use scenes, very big increase work efficiency.
The working principle of screwing the fixing mechanism b3 is as follows: when the expansion part 2 is installed, a wrench is used for clamping the hexagonal nut cb302 to drive the threaded sleeve rod cb301 to be screwed into the rotating shaft c 201; screwing the threaded rod bb305 into the threaded sleeve rod cb301, and fixing the object to be fixed through the hexagonal nut db 304; realized the specific use mode to inflation part 2, the installation is simple, can be applicable to the fixed mode of not frequently dismantling, connects the fastening, is difficult for droing, very big increase work efficiency, improved the security.
The whole can make and be applicable to multiple in service behavior, can be fine with the hole of different materials in fixed, further, also have multiple connected mode with the object installation that needs to fix, very big improvement suitability and security.
Claims (10)
1. A multi-purpose expansion screw, comprising: an expansion portion (2) and a ferrule portion (3); the expansion part (2) is matched with the ferrule part (3) for use;
the expansion part (2) is automatically fixed in a hole which is punched in advance, can also adapt to holes made of different materials, and has great environmental adaptability; the ferrule part (3) is arranged in the expansion part (2) and has two different fixing modes, so that different use requirements can be met;
the expansion part (2) comprises: the device comprises a rotating shaft c (201), a shell b (202), a chuck (203), an expansion clamping mechanism, a knife-shaped clamping piece (208), a pawl (209) and a ratchet wheel (210); the rotating shaft c (201) is rotatably arranged inside the shell b (202), one end of the rotating shaft c (201) is provided with a ratchet wheel (210), the other end of the rotating shaft c (201) is fixedly provided with a chuck (203), and a round hole in the chuck (203) is matched with a cylinder arranged on the screwing disc a (104); the lower end of the chuck (203) is provided with a ratchet wheel (210), and a round hole on the chuck (203) is matched with a cylinder on the screwing disc b (105); a plurality of grooves are formed in the shell b (202), knife-shaped clamping pieces (208) are slidably mounted in the grooves, and springs arranged on the knife-shaped clamping pieces (208) are fixedly connected with the shell b (202); the two ends of the shell b (202) are provided with a plurality of grooves, the grooves are internally and slidably provided with pawls (209), springs arranged on the pawls (209) are fixedly connected with the shell b (202), and the pawls (209) are matched with the ratchet wheel (210).
2. A multipurpose expansion screw according to claim 1, wherein: the locking mechanism comprises a threaded sleeve rod a (204), a threaded sleeve ring (205), a connecting rod (206) and an expansion sheet (207), two threaded sleeve rods a (204) are provided, one threaded sleeve rod a (204) is fixedly connected with one end of the rotating shaft c (201), the other threaded sleeve rod a (204) is rotatably arranged on the shell b (202), the threaded sleeve rod a (204) is provided with a chuck (203), two threaded ferrules (205) are provided, the threaded ferrules (205) are slidably mounted on the threaded sleeve rod a (204), the threaded ferrules (205) are in threaded fit with the threaded sleeve rod a (204), the threaded ferrules (205) are provided with a plurality of cylinders, connecting rods (206) are rotatably mounted on the cylinders, the middle part of the shell b (202) is provided with a plurality of symmetrical cylinders, the cylinders are rotatably mounted with the connecting rods (206), one end of the opposite connecting rod (206) is rotationally connected with the cylinders at the two sides of the expansion sheet (207); the threaded sleeve rod a (204) is driven by the chuck (203) to rotate, the threaded sleeve rod a (204) drives the threaded ferrule (205) on the threaded sleeve rod a to move, and the threaded ferrule (205) is matched with the connecting rod (206), so that the expansion sheet (207) is supported, and the expansion sheet (207) is clamped and fixed with the inner wall of the hole.
3. A multipurpose expansion screw according to claim 1, wherein: the expansion sheet (207) is a thorn-shaped sheet (a207) or a plane sheet (b 207).
4. A multipurpose expansion screw according to claim 3, wherein: the thorn-shaped sheet (a207) is provided with sharp thorns, and the thorn-shaped sheet (a207) can be used in holes which are soft and fragile in material, such as holes on wood and soft cement.
5. A multipurpose expansion screw according to claim 3, wherein: the plane sheet (b207) is provided with a plurality of plane protrusions, and the plane sheet (b207) is suitable for holes with hard materials, such as holes in steel blocks and steel ingots.
6. A multipurpose expansion screw according to claim 1, wherein: the ferrule part (3) is a movable buckling mechanism (a3) or a screwing fixing mechanism (b 3).
7. The multipurpose expansion screw according to claim 6, wherein: a multipurpose expansion screw, characterized in that said ferrule portion (3) comprises a movable snap mechanism (a 3); the movable catch mechanism (a3) includes: the device comprises a threaded sleeve rod b (a301), a hexagonal nut a (a302), a gasket a (a303), a hexagonal nut b (a304), a threaded rod a (a305), a clamping rod a (a306), a clamping block (a307), a clamping rod b (a308) and a sleeve rod (a 309); the thread arranged on the outer side of the threaded sleeve rod b (a301) is matched with the thread inside the rotating shaft c (201), and the threaded sleeve rod b (a301) can be installed inside the rotating shaft c (201); a hexagonal nut a (a302) is fixedly arranged at one end of the threaded sleeve rod b (a 301); a loop bar (a309) is arranged inside the threaded loop bar b (a301), a plurality of sliding grooves are formed inside the loop bar (a309), a clamping block (a307) which is installed in a sliding mode is arranged inside each groove, and a spring arranged at one end of each clamping block (a307) is fixedly connected with the loop bar (a 309); a round hole is formed in the sleeve rod (a309), a clamping rod b (a308) is arranged in the round hole in a sliding mode, a plurality of round ejector blocks are arranged on the clamping rod b (a308), and the ejector blocks are matched with grooves in the clamping block (a 307); the clamping rod a (a306) can be arranged in the sleeve rod (a309), and a groove arranged on the clamping rod a (a306) is matched with the clamping block (a 307); the threaded rod a (a305) is fixedly arranged at one end of the clamping rod a (a306), and two slidably-arranged gaskets a (a303) are arranged on the threaded rod a (a 305); the hexagonal nut b (a304) is attached to one end of the threaded rod a (a305), and the thread of the hexagonal nut b (a304) is engaged with the thread of the threaded rod a (a305) in a threaded manner.
8. The multipurpose expansion screw according to claim 6, wherein: a multipurpose expansion screw, characterized in that said ferrule portion (3) comprises screwing fixing means (b 3); the screwing fixture (b3) includes: a threaded sleeve rod c (b301), a hexagonal nut c (b302), a washer b (b303), a hexagonal nut d (b304) and a threaded rod b (b 305); the thread arranged on the outer side of the threaded sleeve rod c (b301) is matched with the thread inside the rotating shaft c (201), and the threaded sleeve rod c (b301) can be installed inside the rotating shaft c (201); the ab0 expansion part (2) is fixedly arranged at one end of the threaded sleeve rod c (b 301); the threaded rod b (b305) can be arranged in the threaded sleeve rod c (b301), and threads on the threaded rod b (b305) are matched with threads in the threaded sleeve rod c (b301) in a threaded mode; two gaskets b (b303) which are installed in a sliding way are arranged on the threaded rod b (b 305); the hexagonal nut d (b304) is attached to the threaded rod b (b305), and the internal thread of the hexagonal nut d (b304) is engaged with the thread of the threaded rod b (b305) in a threaded manner.
9. A tightening tool according to claim 1, characterized by comprising a tool part (1), the tool part (1) being adapted to tighten a multipurpose expansion screw according to claims 1 to 8; the tool part (1) is matched with the ferrule part (3) for use; the tool part (1) can be used manually or can be arranged on a common electric drill for use.
10. A tightening tool according to claim 9, wherein: the tool part (1) comprises: the spark plug comprises a spark plug wrench (101), a shell a (102), a change-over switch (103), a screwing disc a (104), a screwing disc b (105), a rotating shaft a (106), a rotating shaft b (107), a spur gear a (108) and a spur gear b (109); an internal gear (110), a top bead (111); one end of the spark plug wrench (101) is matched with a groove at one end of the shell a (102), and the groove of the shell a (102) is also suitable for a drill bit of a common electric drill; the switch (103) is slidably arranged in a groove on the shell a (102); the screwing plate a (104) is rotatably installed inside the shell a (102), the screwing plate b (105) is rotatably installed inside the shell a (102), one end of the shell a (102) and one end of the screwing plate b (105) are provided with a plurality of round holes, the round holes are internally provided with ejection beads (111) in a sliding mode, and a spring arranged at one end of each ejection bead (111) is fixedly connected with the screwing plate a (104) and the screwing plate b (105); the rotating shaft a (106) is rotatably arranged inside the shell a (102), the rotating shaft b (107) is rotatably arranged inside the shell a (102), a plurality of round holes are formed in the rotating shaft a (106) and the rotating shaft b (107), and the round holes are matched with the top beads (111); a spur gear a (108) is fixedly arranged at one end of a rotating shaft b (107), a spur gear b (109) is fixedly arranged at one end of a rotating shaft a (106), an internal gear (110) is slidably arranged in a shell a (102), the internal gear (110), the spur gear a (108) and the spur gear b (109) are meshed with each other, and the internal gear (110) is fixedly connected with one end of a change-over switch (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110201899.3A CN112901621A (en) | 2021-02-23 | 2021-02-23 | Multipurpose expansion screw and tightening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110201899.3A CN112901621A (en) | 2021-02-23 | 2021-02-23 | Multipurpose expansion screw and tightening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112901621A true CN112901621A (en) | 2021-06-04 |
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ID=76124556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110201899.3A Pending CN112901621A (en) | 2021-02-23 | 2021-02-23 | Multipurpose expansion screw and tightening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112901621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432695A (en) * | 2023-12-13 | 2024-01-23 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
-
2021
- 2021-02-23 CN CN202110201899.3A patent/CN112901621A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117432695A (en) * | 2023-12-13 | 2024-01-23 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
| CN117432695B (en) * | 2023-12-13 | 2024-05-24 | 江苏佳杰特种螺钉有限公司 | Bolt and nut assembly for fixing air conditioner outdoor unit |
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