CN221195648U - Butterfly type expansion screw - Google Patents
Butterfly type expansion screw Download PDFInfo
- Publication number
- CN221195648U CN221195648U CN202322752234.9U CN202322752234U CN221195648U CN 221195648 U CN221195648 U CN 221195648U CN 202322752234 U CN202322752234 U CN 202322752234U CN 221195648 U CN221195648 U CN 221195648U
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- Prior art keywords
- expansion screw
- ring
- folding
- outer sleeve
- butterfly
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- 238000009434 installation Methods 0.000 description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model provides a butterfly type expansion screw. The butterfly expansion screw comprises: the inner sleeve is arranged in the outer sleeve, one end of the inner sleeve is fixedly connected with a fixing ring, one side, opposite to the other end of the fixing ring, of each fixing ring is fixedly connected with a movable buckle, the bottoms of the movable buckles are respectively connected with a second folding plate in a rotating mode, the other ends of the second folding plates are respectively connected with a folding buckle in a rotating mode, and the other ends of the folding buckles are respectively connected with a first folding plate in a rotating mode. According to the butterfly expansion screw provided by the utility model, the expansion screw can be rapidly taken out from the outer sleeve through the butterfly expansion screw device, meanwhile, through the cooperation of the two groups of first folding plates and the second folding plates and the support of the internal thread ring, the independent stress of the first folding plates and the second folding plates is reduced, so that the loss is reduced, the damage of the first folding plates and the second folding plates can be independently replaced, and the expansion screw can be reused after being disassembled, so that the use cost is reduced.
Description
Technical Field
The utility model relates to the technical field of expansion screws, in particular to a butterfly expansion screw.
Background
The expansion screw is also called expansion bolt, which is a special threaded connecting piece used for fixing a pipeline support, a crane, a bracket or equipment on a wall, a floor slab and a column, and the grades of the carbon steel bolts are divided into more than 10 grades of 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 and the like.
The expansion screw is divided into a plurality of types, the expansion screw is fixed by utilizing wedge-shaped inclination to promote expansion to generate friction grip force, the fixing effect is achieved, one end of the screw is threaded, one end of the screw is tapered, an iron sheet is covered outside, one half of the iron sheet cylinder is provided with a plurality of notches, the iron sheet cylinder and the iron sheet cylinder are plugged into a hole drilled in a wall together, then a nut is locked, the nut pulls the screw outwards, the taper is pulled into the iron sheet cylinder, and the iron sheet cylinder is expanded, so that the iron sheet cylinder is tightly fixed on the wall.
The traditional butterfly expansion screw is mostly disposable, after the expansion screw is inserted into a wall body, the rear fastening piece is not easy to take out after being stressed, the butterfly fastening piece behind the expansion screw is easy to damage even after being forcibly taken out, and the butterfly fastening piece is not used for the second time, so that the utilization rate of the expansion screw for reuse is reduced, and the use cost is increased.
Therefore, it is necessary to provide a butterfly expansion screw to solve the above technical problems.
Disclosure of utility model
The utility model provides a butterfly expansion screw, which solves the problems that the butterfly expansion screw is not easy to take out after being inserted into a wall body, and a butterfly fastener is damaged and can not be reused after being taken out.
In order to solve the above technical problems, the butterfly expansion screw provided by the present utility model includes: an outer sleeve;
The middle sleeve is arranged in the outer sleeve, one end of the middle sleeve is fixedly connected with a fixed ring, one side, opposite to the other end, of the fixed ring is fixedly connected with movable buckles, the bottoms of the two movable buckles are rotationally connected with second folding plates, the other ends of the two second folding plates are rotationally connected with folding buckles, the other ends of the two folding buckles are rotationally connected with first folding plates, and the other ends of the two first folding plates are rotationally connected with internal thread rings through the movable buckles;
The through-hole, the sheathed tube openly in the middle, the inside of through-hole is provided with the dwang, the one end fixedly connected with threaded rod of dwang the interior hexagonal groove has been seted up to the other end of dwang, and first folding plate and second folding plate can realize laminating in the outside of threaded rod when receiving through folding knot and activity knot cooperation, and the expansion is that one side of first folding plate and second folding plate can contact and form a style of calligraphy, can prevent that the threaded rod from breaking away from the outer tube, and the through-hole runs through the other end from sheathed tube openly one end, and the opening of the other end can let the threaded rod card go into, can refer to fig. 3, and first folding plate and second folding plate can be dismantled the individual change if damaged.
Preferably, the limit groove is all offered to the inner wall four directions of outer tube, the internal thread has been offered to the position that the inner wall of outer tube is close to one end, and the limit groove is square, and the internal thread is the internal thread connection that can be with the help of the instrument outer tube inner wall that has the screw thread at the outer tube that needs to take out.
Preferably, the outside four directions of well sheathed tube all fixedly connected with spacing, spacing is square that can block into the spacing groove, and spacing groove cooperation can prevent that well sleeve pipe from rotating in the inside of outer tube.
Preferably, the outer part of the outer sleeve is provided with two threaded holes on the first surface opposite to each other, the outer part of the outer sleeve is provided with a first mounting ring at the position of one surface, and the threaded holes are positioned on the two surfaces opposite to each other and close to the top and the bottom of the outer sleeve, and the position of the threaded holes can be specifically referred to fig. 5.
Preferably, the outside of first collar is located the intermediate position and has seted up the installing port, the inside of installing port is provided with the bolt, and the bolt passes installing port and screw hole threaded connection.
Preferably, the contact piece is installed in the middle position of the inner ring of the first installation ring, the contact ring is installed in the inner ring of the first installation ring, and the contact ring is made of rubber materials so as to increase friction force.
Preferably, both ends of the first installation ring are fixedly connected with clamping bolts, both ends of the first installation ring are provided with second installation rings through clamping grooves, the first installation rings and the second installation rings are semi-rings, the first installation rings and the second installation rings are combined together to form a complete ring, the clamping bolts are clamped into the clamping grooves, the second installation rings are arranged on the outer side of the outer sleeve and on the opposite side of the first installation rings through bolts, and if the outer diameter of the outer sleeve is increased, the first installation rings or the second installation rings can be independently arranged, and the clamping bolts can be used together.
Compared with the related art, the butterfly type expansion screw provided by the utility model has the following beneficial effects:
The utility model provides a butterfly expansion screw, when the expansion screw is needed, firstly, a hole is formed between a corresponding position and an outer sleeve, then the outer sleeve is inserted into the hole, then a threaded rod provided with a rotating rod is inserted into the middle sleeve through a through hole, an internal thread ring is positioned outside the threaded rod, then the middle sleeve is inserted into the outer sleeve, the threaded rod passes through the outer sleeve, one end of the middle sleeve is contacted with one end of the inner wall of the outer sleeve, after the expansion screw is reached, the threaded rod is driven to rotate by the rotating rod through a tool inserted into the inner hexagonal groove, the position of the internal thread ring can be adjusted, so that a first folding plate and a second folding plate are mutually close through a folding buckle and a movable buckle, the first folding plate and the second folding plate are unfolded to be clamped at one end of the outer sleeve, then the other end of the middle sleeve is connected through an external thread, when the expansion screw is needed to be removed, the internal thread ring and the fixed ring are mutually far away, and the first folding plate and the second folding plate are mutually damaged through the tool, the first folding plate and the second folding plate are independently arranged in the first folding plate and the outer sleeve, the expansion screw is removed from the outer sleeve through the first folding plate, the first folding plate and the second folding plate is independently, the expansion screw is removed through the first folding plate and the second folding plate, and the expansion screw is quickly damaged through the first folding plate and the external sleeve through the external screw, therefore, the expansion screw can be reused after being disassembled, and the use cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a butterfly expansion screw according to the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a structure of a rotating rod according to the present utility model;
FIG. 4 is a schematic view of a structure of an inner hexagonal groove according to the present utility model;
Fig. 5 is a schematic structural view of a second embodiment of the butterfly expansion screw according to the present utility model;
fig. 6 is a schematic structural view of a contact ring according to the present utility model.
Reference numerals in the drawings: 1. the outer sleeve, 2, the threaded rod, 3, the internal thread ring, 4, the fixed ring, 5, the external thread, 6, the middle sleeve, 7, the first folding rod, 8, the folding knot, 9, the second folding rod, 10, the movable knot, 11, the internal hexagonal groove, 12, the rotating rod, 13, the limit strip, 14, the limit groove, 15, the through hole, 16, the internal thread, 17, the threaded hole, 18, the bolt, 19, the first installation ring, 20, the latch, 21, the installation hole, 22, the contact piece, 23, the draw-in groove, 24, the contact ring, 25, the second installation ring.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1, fig. 2, fig. 3, and fig. 4 in combination, fig. 1 is a schematic structural diagram of a butterfly expansion screw according to a first embodiment of the present utility model; FIG. 2 is an enlarged view of FIG. 1 at A; FIG. 3 is a schematic view of a structure of a rotating rod according to the present utility model; fig. 4 is a schematic structural view of the inner hexagonal groove provided by the utility model. Butterfly expansion screw includes: an outer sleeve 1;
The middle sleeve 6 is arranged in the outer sleeve 1, one end of the middle sleeve 6 is fixedly connected with a fixed ring 4, one side, opposite to the other end, of the fixed ring 4 is fixedly connected with movable buckles 10, the bottoms of the two movable buckles 10 are respectively and rotatably connected with a second folding plate 9, the other ends of the two second folding plates 9 are respectively and rotatably connected with a folding buckle 8, the other ends of the two folding buckles 8 are respectively and rotatably connected with a first folding plate 7, and the other ends of the two first folding plates 7 are respectively and rotatably connected with an inner threaded ring 3 through the movable buckles 10;
The through hole 15, the front at well sleeve pipe 6 is offered to the through hole 15, the inside of through hole 15 is provided with dwang 12, the one end fixedly connected with threaded rod 2 of dwang 12 the other end of dwang 12 has seted up interior hexagonal groove 11, first folding plate 7 and second folding plate 9 can realize laminating in the outside of threaded rod 2 when it cooperates through folding buckle 8 and activity knot 10, the expansion is that one side of first folding plate 7 and second folding plate 9 will form a style of calligraphy, can prevent threaded rod 2 break away from outer tube 1, the through hole 15 runs through to the other end from the front one end of well sleeve pipe 6, and the opening of the other end can let threaded rod 2 card go into, can refer to fig. 3, first folding plate 7 and second folding plate 9 can be dismantled and change outer tube 1 alone if damaging, but the opening at both ends is different, can let internal thread ring 3 and solid fixed ring 4 pass.
The limiting groove 14 has all been seted up to the inner wall four directions of outer tube 1, the inner wall of outer tube 1 has been seted up the internal thread 16 near the position of one end, and limiting groove 14 is square, and internal thread 16 is taking out outer tube 1 in needs, can be with the help of the internal thread 16 connection of the instrument outer tube 1 inner wall that has the screw thread, conveniently takes out outer tube 1.
The outside four directions of well sleeve pipe 6 are all fixedly connected with spacing 13, spacing 13 is square that can block into spacing groove 14, and spacing 13 and spacing groove 14 cooperation can prevent well sleeve pipe 6 at the inside rotation of outer tube 1, and simultaneously spacing 13 and the one end contact of outer tube 1 inner wall when well sleeve pipe 6 inserts the inside of outer tube 1.
The working principle of the butterfly type expansion screw provided by the utility model is as follows:
The position is firstly opened in the corresponding position and the hole is almost formed between the outer sleeve 1, the outer sleeve 1 is inserted into the hole, the threaded rod 2 provided with the rotating rod 12 is inserted into the middle sleeve 6 through the through hole 15, the inner threaded ring 3 is positioned at the outer part of the threaded rod 2, the middle sleeve 6 is inserted into the outer sleeve 1, the threaded rod 2 passes through the outer sleeve 1, one end of the middle sleeve 6 is simultaneously contacted with one end of the inner wall of the outer sleeve 1, after the position is reached, the threaded rod 2 is driven to rotate through the rotating rod 12 only by inserting a tool into the inner hexagonal groove 11, the position of the inner threaded ring 3 can be adjusted, so that the first folding plate 7 and the second folding plate 9 are mutually close to each other through the folding buckle 8 and the movable buckle 10, the first folding plate 7 and the second folding plate 9 are unfolded to be clamped at one end of the outer sleeve 1, the other end of the middle sleeve 6 is connected through the outer threaded rod 5, and when the outer sleeve 1 needs to be taken down, the threaded rod 3 and the fixed ring 4 are mutually far away from each other by inserting the tool into the inner hexagonal groove 11, and the threaded rod 2 can be moved away from each other, and the first folding plate 7 and the second folding plate 9 can be folded up through the threaded rod 2 and the outer sleeve 2 through the folding buckle 8.
Compared with the related art, the butterfly type expansion screw provided by the utility model has the following beneficial effects:
When an expansion screw is needed, firstly, a hole is formed between the corresponding position and the outer sleeve 1, then the outer sleeve 1 is inserted into the hole, then the threaded rod 2 provided with the rotating rod 12 is inserted into the middle sleeve 6 through the through hole 15, the internal thread ring 3 is positioned outside the threaded rod 2, then the middle sleeve 6 is inserted into the outer sleeve 1, the threaded rod 2 passes through the outer sleeve 1, one end of the middle sleeve 6 is contacted with one end of the inner wall of the outer sleeve 1, after the position is reached, the threaded rod 2 is driven to rotate by the rotating rod 12 through the tool inserted into the inner hexagonal groove 11, and the position of the internal thread ring 3 can be adjusted, so that the first folding plate 7 and the second folding plate 9 are mutually close through the folding buckle 8 and the movable buckle 10, the first folding plate 7 and the second folding plate 9 are unfolded to be clamped at one end of the outer sleeve 1 passing through a wall body, the other end of the middle sleeve 6 can be connected through the external thread 5, when the middle sleeve is required to be removed, the threaded rod 2 is only required to be inserted into the internal hexagonal groove 11 through a tool to rotate in the opposite direction, the internal thread ring 3 and the fixed ring 4 can be separated from each other, the first folding plate 7 and the second folding plate 9 can be folded through the folding buckle 8 and the movable buckle 10, the first folding plate 7 and the second folding plate 9 are attached to the outside of the threaded rod 2, the middle sleeve 6 provided with the threaded rod 2 can be taken out from the inside of the outer sleeve 1, the device can be used for rapidly taking out the expansion screw from the outer sleeve 1, simultaneously, the two groups of the first folding plate 7 and the second folding plate 9 are matched and supported through the internal thread ring 3, the independent stress of the first folding plate 7 and the second folding plate 9 is reduced, and the loss is reduced, and the first folding plate 7 and the second folding plate 9 can be singly replaced after being damaged, thereby realizing that the expansion screw can be reused after being disassembled, and reducing the use cost.
Second embodiment
Referring to fig. 5-6 in combination, fig. 5 is a schematic structural diagram of a butterfly expansion screw according to a second embodiment of the present utility model; fig. 6 is a schematic structural view of a contact ring according to the present utility model, and another butterfly expansion screw according to the second embodiment of the present utility model is provided based on the butterfly expansion screw according to the first embodiment of the present utility model. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the butterfly expansion screw provided in the second embodiment of the present application is different in that two threaded holes 17 are formed on opposite first surfaces of the outer sleeve 1, a first mounting ring 19 is disposed on a surface of the outer sleeve 1, the threaded holes 17 are located on opposite surfaces of the outer sleeve 1 and near the top and bottom, as shown in fig. 5, and the first mounting ring 19 is a semi-ring shape.
The outside of first collar 19 is located the intermediate position and has seted up mounting hole 21, the inside of mounting hole 21 is provided with bolt 18, and bolt 18 passes mounting hole 21 and screw hole 17 threaded connection to can install first collar 19 in the outside of outer tube 1.
The contact piece 22 is installed in the middle of the inner ring of the first mounting ring 19, the contact ring 24 is installed in the inner ring of the first mounting ring 19, the contact ring 24 is made of rubber, and in order to increase friction force, a hole through which the bolt 18 can pass is formed in the contact piece 22.
Both ends of the first installation ring 19 are fixedly connected with a clamping bolt 20, both ends of the first installation ring 19 are provided with a second installation ring 25 through a clamping groove 23, both the first installation ring 19 and the second installation ring 25 are semi-rings, the two installation rings are combined together to form a complete ring, the clamping bolt 20 is clamped into the clamping groove 23, the second installation ring 25 is installed on one surface of the outer part of the outer sleeve 1 opposite to the first installation ring 19 through a bolt 18, if the outer diameter of the outer sleeve 1 is increased, the first installation ring 19 or the second installation ring 25 can be independently installed, and the two installation rings can be used together, but the first installation ring 19 or the second installation ring 25 are installed on the same surface of the outer part of the outer sleeve 1, so as to prevent the outer sleeve 1 from shaking in a hole.
Compared with the related art, the butterfly type expansion screw provided by the utility model has the following beneficial effects:
When the hole that needs to install the inflation screw is offered great, can be according to the demand with first collar 19 through the outside of bolt 18 installation at outer tube 1, let bolt 18 and screw hole 17 link together, thereby can fix first collar 19, the inner ring of first collar 19 has contact piece 22 and contact ring 24 can play the supporting role simultaneously, simultaneously can skid in a mode, if still less can dock the draw-in groove 23 on the second collar 25 and the bayonet catch 20 on the first collar 19, afterwards install the second collar 25 outside at outer tube 1 with the bolt 18 equally, let first collar 19 and second collar 25 constitute a ring, increase the outside diameter of outer tube 1, at least two sets of first collars 19 or second collars 25 are installed on outer tube 1, increase the stability in the inflation screw insertion hole and prevent rocking, can increase the outside diameter of outer tube 1 when the trompil is great through this equipment and with its bayonet catch in the hole, the practicality has been increased.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A butterfly expansion screw, comprising: an outer sleeve;
The middle sleeve is arranged in the outer sleeve, one end of the middle sleeve is fixedly connected with a fixed ring, one side, opposite to the other end, of the fixed ring is fixedly connected with movable buckles, the bottoms of the two movable buckles are rotationally connected with second folding plates, the other ends of the two second folding plates are rotationally connected with folding buckles, the other ends of the two folding buckles are rotationally connected with first folding plates, and the other ends of the two first folding plates are rotationally connected with internal thread rings through the movable buckles;
The inner hexagonal groove is formed in the other end of the rotating rod.
2. The butterfly expansion screw of claim 1, wherein the inner wall of the outer sleeve is provided with limit grooves in four directions, and the inner wall of the outer sleeve is provided with internal threads near one end.
3. The butterfly expansion screw of claim 1, wherein the four outer directions of the middle sleeve are fixedly connected with a limit bar, and the limit bar is square which can be clamped into the limit groove.
4. The butterfly expansion screw of claim 1, wherein the outer sleeve has two threaded holes on opposite first sides thereof, and a first mounting ring is disposed on a side of the outer sleeve.
5. The butterfly expansion screw of claim 4, wherein the outer portion of the first mounting ring is provided with a mounting port at a middle position, and the inner portion of the mounting port is provided with a bolt.
6. The butterfly expansion screw of claim 4, wherein the contact piece is mounted in the middle of the inner ring of the first mounting ring, and the contact ring is mounted in the inner ring of the first mounting ring.
7. The butterfly expansion screw of claim 4, wherein the two ends of the first mounting ring are fixedly connected with clamping bolts, and the two ends of the first mounting ring are provided with second mounting rings through clamping grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322752234.9U CN221195648U (en) | 2023-10-13 | 2023-10-13 | Butterfly type expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322752234.9U CN221195648U (en) | 2023-10-13 | 2023-10-13 | Butterfly type expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195648U true CN221195648U (en) | 2024-06-21 |
Family
ID=91493940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322752234.9U Active CN221195648U (en) | 2023-10-13 | 2023-10-13 | Butterfly type expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195648U (en) |
-
2023
- 2023-10-13 CN CN202322752234.9U patent/CN221195648U/en active Active
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