CN214036423U - Invisible expansion screw suitable for various walls - Google Patents
Invisible expansion screw suitable for various walls Download PDFInfo
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- CN214036423U CN214036423U CN202022039808.4U CN202022039808U CN214036423U CN 214036423 U CN214036423 U CN 214036423U CN 202022039808 U CN202022039808 U CN 202022039808U CN 214036423 U CN214036423 U CN 214036423U
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- screw
- sleeve
- swivel nut
- guide pin
- pin bushing
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Abstract
The utility model discloses an invisible expansion screw suitable for multiple wall body, including the swivel nut, the spiral shell chamber has been seted up between the upper and lower surface intermediate position of swivel nut, and the swivel nut has the double-screw bolt through swivel nut chamber threaded connection, the dead slot has all been seted up between the middle and bottom position of the both sides wall of swivel nut, the surface screw thread of swivel nut has cup jointed the guide pin bushing, and the guide pin bushing is the carbon steel material, the surface coating of guide pin bushing has the concrete filling layer, and the top intermediate position of guide pin bushing has seted up the fixed slot, the piston bush is installed through fixed slot screw thread in the inside of guide pin bushing. The utility model discloses in, stealthy inflation screw is equipped with the inseparable reinforcement urceolus structure of assembly to fix through the drilling installation, extensive applicability uses in order to satisfy the installation of inflation screw on multiple wall body, simultaneously, twists the end of orbit in the screw and provides to connect spacingly, separates through the direction and keeps off the structure and applys reaction force in order to realize the firm installation of screw end in the wall body.
Description
Technical Field
The utility model relates to a connect the accessory field, especially relate to an invisible expansion screw suitable for multiple wall body.
Background
The invisible expansion screw is a combination body formed by assembling a screw and a screw sleeve made of plastic materials, the screw sleeve is firstly driven into a wall body when the invisible expansion screw is used, then the screw is screwed into the screw sleeve, and the screw sleeve is unfolded up and down to be filled in the wall body to realize reinforcement in the process, so that the anti-falling performance of screw installation is enhanced.
Traditional stealthy inflation screw is when using, does not establish the inseparable reinforcement urceolus structure of assembly, fixes through the drilling installation, leads to the suitability limited, can not satisfy the installation user demand of inflation screw on multiple wall body, simultaneously, does not provide in the end of screw wrong income orbit and connects spacingly, has reduced the terminal steadiness of installing in the wall body of screw, has influenced stealthy inflation screw's use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an invisible expansion screw suitable for various walls.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an invisible expansion screw suitable for multiple wall body, includes the swivel nut, the spiral shell chamber has been seted up between the upper and lower surface intermediate position of swivel nut, and the swivel nut has the double-screw bolt through spiral shell chamber threaded connection, the dead slot has all been seted up between the middle and the bottom position of the both sides wall of swivel nut, the surface screw thread of swivel nut has cup jointed the guide pin bushing, and the guide pin bushing is the carbon steel material, the surface coating of guide pin bushing has the concrete filling layer, and the top intermediate position of guide pin bushing has seted up the fixed slot, the piston bush is installed through fixed slot screw thread in the inside of guide pin bushing.
Preferably, the threaded sleeve is movably sleeved at the bottom of the outer surface of the stud, and a threaded head is welded at the upper end of the stud.
Preferably, the upper surface of the screw head is provided with a cross-shaped notch, and the stud is vertically arranged in the middle of the bottom of the screw head.
Preferably, the empty groove corresponds to the screw cavity, and the screw sleeve is made of plastic.
Preferably, the piston sleeve is made of rubber, and the piston sleeve is filled between the threaded sleeve and the guide sleeve.
Preferably, the lower surface intermediate position welding of double-screw bolt has the inserted bar, and the axis of ordinates center setting of inserted bar and double-screw bolt is on same vertical line, the both sides inner wall bottom position of swivel nut has all been seted up and has been connected the chamber, and connect the chamber and adjacent the dead slot is corresponding, the swivel nut has the spring through connecting chamber fixed mounting, and the spring setting is in the inside of connecting the chamber.
Preferably, be located both sides the equal fixed mounting in one end position that the spring is close to each other has the clamping piece, and is two sets of the movable angle scope of contained angle is zero degree to forty-five degrees between the clamping piece, and is two sets of the pole groove has all been seted up to a lateral wall intermediate position that the clamping piece is close to each other, and is two sets of the pole groove makes up into round structure, and the inserted bar passes through pole groove movable mounting and is two sets of between the clamping piece.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the guide sleeve is coated outside the screw sleeve, when in use, the reinforcing outer cylinder structure is drilled into the wall body and tightly mounted between the reinforcing outer cylinder structure and the wall body under the action of the concrete filling layer, the expansion screw is screwed in and supported by the reinforcing outer cylinder structure, and the piston sleeve installed by the guide of the fixed groove is filled between the screw sleeve and the guide sleeve for sealing and reinforcing, so that the reinforcing outer cylinder structure is tightly assembled and is fixed by drilling and mounting, and the application range is wide, so that the expansion screw can be mounted and used on various wall bodies;
2. in the utility model, the insertion rod is arranged to realize the fit assembly between the two groups of clamping pieces through the rod groove, the clamping pieces are movably arranged in the screw sleeve through the spring installed in a guiding way by the connecting cavity, when the screw is screwed into the screw sleeve to the tail end of the screw is clamped between the two groups of clamping pieces, the two groups of clamping pieces are propped apart under the deformation action of the spring, and a guiding and blocking structure is formed to exert a reaction force so as to realize the stable installation of the screw tail end in the wall body;
to sum up, stealthy inflation screw is equipped with the inseparable reinforcement urceolus structure of assembly to fix through the drilling installation, extensive applicability uses in order to satisfy the installation of inflation screw on multiple wall body, simultaneously, it is spacing to provide to connect in the end of screw twist orbit, separates through the direction and keeps off the structure and applys reaction force in order to realize the terminal firm installation of screw in the wall body.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an invisible expansion screw suitable for various walls according to the present invention;
fig. 2 is a partial side view of an invisible expansion screw suitable for various walls according to the present invention;
fig. 3 is a top view of the invisible expansion screw suitable for various walls according to the present invention;
fig. 4 is a schematic structural diagram of a second embodiment of the invisible expansion screw suitable for various walls according to the present invention;
fig. 5 is a partial bottom view of a second embodiment of the invisible expansion screw suitable for various walls according to the present invention.
In the figure: the screw rod comprises a screw sleeve 1, a screw cavity 2, a stud 3, a screw head 4, a hollow groove 5, a guide sleeve 6, a concrete filling layer 7, a fixing groove 8, a piston sleeve 9, an insertion rod 10, a connecting cavity 11, a spring 12, a clamping piece 13 and a rod groove 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-4, an invisible expansion screw suitable for various walls comprises a screw sleeve 1, a screw cavity 2 is formed between the middle positions of the upper surface and the lower surface of the screw sleeve 1, the screw sleeve 1 is in threaded connection with a stud 3 through the screw cavity 2, empty grooves 5 are formed between the middle positions of two side walls and the bottom position of the screw sleeve 1, a guide sleeve 6 is sleeved on the outer surface of the screw sleeve 1 in a threaded mode, the guide sleeve 6 is made of carbon steel, a concrete filling layer 7 is coated on the outer surface of the guide sleeve 6, a fixing groove 8 is formed in the middle position of the top of the guide sleeve 6, and a piston sleeve 9 is installed inside the guide sleeve 6 through the fixing groove 8 in a threaded mode.
The screw sleeve 1 is movably sleeved at the bottom of the outer surface of the stud 3, the upper end of the stud 3 is welded with the screw head 4, the upper surface of the screw head 4 is provided with a cross-shaped notch, the stud 3 is vertically arranged at the middle position of the bottom of the screw head 4, the empty groove 5 corresponds to the screw cavity 2, the screw sleeve 1 is made of plastic, the piston sleeve 9 is made of rubber, and the piston sleeve 9 is filled between the screw sleeve 1 and the guide sleeve 6.
Example two
Referring to fig. 2-5, an invisible expansion screw suitable for various walls comprises a screw sleeve 1, a screw cavity 2 is formed between the middle positions of the upper surface and the lower surface of the screw sleeve 1, the screw sleeve 1 is in threaded connection with a stud 3 through the screw cavity 2, empty grooves 5 are formed between the middle positions of two side walls and the bottom position of the screw sleeve 1, a guide sleeve 6 is sleeved on the outer surface of the screw sleeve 1 in a threaded mode, the guide sleeve 6 is made of carbon steel, a concrete filling layer 7 is coated on the outer surface of the guide sleeve 6, a fixing groove 8 is formed in the middle position of the top of the guide sleeve 6, and a piston sleeve 9 is installed inside the guide sleeve 6 through the fixing groove 8 in a threaded mode.
The screw sleeve 1 is movably sleeved at the bottom of the outer surface of the stud 3, the upper end of the stud 3 is welded with a screw head 4, the upper surface of the screw head 4 is provided with a cross-shaped notch, the stud 3 is vertically arranged at the middle position of the bottom of the screw head 4, a hollow groove 5 corresponds to a screw cavity 2, the screw sleeve 1 is made of plastic, a piston sleeve 9 is made of rubber, the piston sleeve 9 is filled between the screw sleeve 1 and a guide sleeve 6, the middle position of the lower surface of the stud 3 is welded with an inserting rod 10, the longitudinal axis centers of the inserting rod 10 and the stud 3 are arranged on the same vertical line, the bottom positions of the inner walls at two sides of the screw sleeve 1 are both provided with connecting cavities 11, the connecting cavities 11 correspond to the adjacent hollow grooves 5, the screw sleeve 1 is fixedly provided with springs 12 through the connecting cavities 11, the springs 12 are arranged inside the connecting cavities 11, clamping pieces 13 are fixedly arranged at the positions at the ends, which are positioned at two sides, the springs 12 are close to each other, the two groups of the clamping pieces 13 have a movable angle ranging from zero degree to forty-five degrees, rod grooves 14 are formed in the middle of one side wall, close to each other, of the two clamping pieces 13, the inserted rod 10 is assembled between the two clamping pieces 13 through the rod grooves 14, the clamping pieces 13 are movably mounted in the screw sleeve 1 through the springs 12 mounted in the connecting cavity 11 in a guiding mode, when a screw is screwed into the screw sleeve 1 and clamped between the two clamping pieces 13 to the tail end of the screw, the two clamping pieces 13 are stressed to be stretched under the deformation effect of the springs 12, a guiding blocking structure is formed, reacting force is applied to achieve stable mounting of the tail end of the screw in a wall body, the two rod grooves 14 are combined into a circular structure, and the inserted rod 10 is movably mounted between the two clamping pieces 13 through the rod grooves 14.
The working principle is as follows: the screw sleeve 1 is assembled with the stud 3 through the screw cavity 2, the stud 3 and the screw head 4 are combined into a screw structure, an object is installed and fixed on a wall body by screwing the stud 3 into the screw sleeve 1, the stud 3 is driven to be stretched up and down under the action of the empty groove 5 in the process of screwing the stud 3 into the screw sleeve 1 through the screw thread action, so that the reinforcement is realized by filling the screw sleeve in the wall body, the anti-falling performance of the screw installation is enhanced, the guide sleeve 6 is coated outside the screw sleeve 1, the screw sleeve is drilled into the wall body and tightly installed between the screw sleeve and the wall body under the action of the concrete filling layer 7 when in use, the reinforcing outer cylinder structure is formed to provide screwing support of the expansion screw, the piston sleeve 9 guided by the fixing groove 8 is filled between the screw sleeve 1 and the guide sleeve 6 to carry out sealing reinforcement, the reinforcing outer cylinder structure is tightly assembled and is fixed through drilling installation, and the application range of the expansion screw on various wall bodies is met, inserted bar 10 realizes the fit assembly between two sets of clamping pieces 13 through pole groove 14, and clamping piece 13 realizes the movable mounting in swivel nut 1 at the spring 12 by connecting 11 guide installations in chamber, and when the screw twists in swivel nut 1 to its terminal card go into between two sets of clamping pieces 13, two sets of clamping pieces 13 atress strut under spring 12's deformation, constitute the direction and separate the retaining structure and apply the reaction force in order to realize the terminal firm installation in the wall of screw, the utility model discloses in, stealthy inflation screw is equipped with the inseparable reinforcement urceolus structure of assembly to fix through the drilling installation, extensive applicability is used in order to satisfy the installation of inflation screw on multiple wall, and simultaneously, it is spacing to provide the connection in the end of screw twist orbit, separates the retaining structure through the direction and applies the reaction force in order to realize the terminal firm installation in the wall of screw.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides an invisible expansion screw suitable for multiple wall body, includes swivel nut (1), its characterized in that: screw cavity (2) have been seted up between the upper and lower surface intermediate position of swivel nut (1), and swivel nut (1) has double-screw bolt (3) through screw cavity (2) threaded connection, dead slot (5) have all been seted up between the middle and the bottom position of both sides wall of swivel nut (1), guide pin bushing (6) have been cup jointed to the surface screw thread of swivel nut (1), and guide pin bushing (6) are carbon steel material, the surface coating of guide pin bushing (6) has concrete filling layer (7), and the top intermediate position of guide pin bushing (6) has seted up fixed slot (8), piston cover (9) are installed through fixed slot (8) screw thread to the inside of guide pin bushing (6).
2. The invisible expansion screw suitable for various walls according to claim 1, wherein the screw sleeve (1) is movably sleeved at the bottom position of the outer surface of the stud (3), and the upper end of the stud (3) is welded with a screw head (4).
3. The invisible expansion screw suitable for various walls as claimed in claim 2, wherein the upper surface of the screw head (4) is provided with a cross-shaped notch, and the stud (3) is vertically arranged at the middle position of the bottom of the screw head (4).
4. The invisible expansion screw suitable for various walls according to claim 1, wherein the hollow groove (5) corresponds to the screw cavity (2), and the screw sleeve (1) is made of plastic.
5. The invisible expansion screw for various walls as claimed in claim 1, wherein the piston sleeve (9) is made of rubber, and the piston sleeve (9) is filled between the screw sleeve (1) and the guide sleeve (6).
6. The invisible expansion screw suitable for various walls according to claim 1, wherein an inserted bar (10) is welded in the middle of the lower surface of the stud (3), the centers of the longitudinal axes of the inserted bar (10) and the stud (3) are arranged on the same vertical line, a connecting cavity (11) is formed in the bottom of each of the inner walls of the two sides of the screw sleeve (1), the connecting cavity (11) corresponds to the adjacent empty groove (5), a spring (12) is fixedly installed on the screw sleeve (1) through the connecting cavity (11), and the spring (12) is arranged inside the connecting cavity (11).
7. The invisible expansion screw suitable for various walls according to claim 6, wherein clamping pieces (13) are fixedly mounted at one end positions of the springs (12) close to each other at two sides, the included angle between the two sets of clamping pieces (13) ranges from zero degrees to forty-five degrees, rod grooves (14) are formed in the middle positions of one side wall of the two sets of clamping pieces (13) close to each other, the two sets of rod grooves (14) are combined into a circular structure, and the inserted rod (10) is movably mounted between the two sets of clamping pieces (13) through the rod grooves (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039808.4U CN214036423U (en) | 2020-09-17 | 2020-09-17 | Invisible expansion screw suitable for various walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039808.4U CN214036423U (en) | 2020-09-17 | 2020-09-17 | Invisible expansion screw suitable for various walls |
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| Publication Number | Publication Date |
|---|---|
| CN214036423U true CN214036423U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022039808.4U Active CN214036423U (en) | 2020-09-17 | 2020-09-17 | Invisible expansion screw suitable for various walls |
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| CN (1) | CN214036423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773301A (en) * | 2022-10-21 | 2023-03-10 | 浙江利永达制冷机械有限公司 | Compression screw with good sealing effect and sealing method thereof |
-
2020
- 2020-09-17 CN CN202022039808.4U patent/CN214036423U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773301A (en) * | 2022-10-21 | 2023-03-10 | 浙江利永达制冷机械有限公司 | Compression screw with good sealing effect and sealing method thereof |
| CN115773301B (en) * | 2022-10-21 | 2023-06-13 | 浙江利永达制冷机械有限公司 | Compression screw with good sealing effect and sealing method thereof |
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