CN217842282U - Expansion bolt with double-end thread structure - Google Patents
Expansion bolt with double-end thread structure Download PDFInfo
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- CN217842282U CN217842282U CN202222379528.7U CN202222379528U CN217842282U CN 217842282 U CN217842282 U CN 217842282U CN 202222379528 U CN202222379528 U CN 202222379528U CN 217842282 U CN217842282 U CN 217842282U
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- bolt
- expansion
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- fixing part
- sleeve
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Abstract
The utility model relates to an expansion bolt technical field especially relates to an expansion bolt with double thread structure, include: the bolt comprises a first bolt, a second bolt, a gasket, a limiting device and an expansion bolt sleeve; the first bolt and the second bolt are coaxially arranged, and the end surfaces of the first bolt and the second bolt are mutually abutted; a force application structure is arranged on the end face of one end of the second bolt; the limiting device is sleeved on the first bolt and extrudes and fixes the external keel together with the gasket; the gasket is arranged at the abutting part of the first bolt and the second bolt and is coaxially arranged with the second bolt; the expansion bolt sleeve is sleeved on the second bolt and forms a gap with the washer. Through the utility model discloses, solved the current problem that the bolt adjustment fossil fragments operation degree of difficulty is big that expands, and fixed wall is firm, and it is various to deal with the condition, and the installation only needs alright realization alone with the regulation, and labour saving and time saving has practiced thrift cost of labor and adjust time's cost greatly.
Description
Technical Field
The utility model relates to an expansion bolt technical field especially relates to an expansion bolt with double thread structure.
Background
In the assembled wallboard system, the T-shaped expansion bolt is an expansion bolt used for supporting and fixing the leveling keel. The application method of the expansion bolt comprises the steps of firstly adjusting an external adjusting screw to change the length of the expansion bolt plastic part inserted into the wall, adjusting the height of the expansion bolt out of the wall by using the method, and then fixing the middle expansion bolt screw to finish installation.
The problem with this installation is that the height of the expansion bolts after installation cannot be adjusted, which is the target of the t-shaped expansion bolts. A plurality of T-shaped expansion bolts are required to be installed in one leveling keel, and a plurality of leveling keels are required to be installed on one wall. Under the condition that the height of the wall can not be adjusted, the length of the expansion bolt plastic part inserted into the wall can be adjusted in advance, so that the workload is greatly increased, and the leveling effect is not satisfactory.
The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an expand and tie with double thread structure can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an expansion bolt with a double-start thread structure, comprising: the bolt comprises a first bolt, a second bolt, a gasket, a limiting device and an expansion bolt sleeve;
the first bolt and the second bolt are coaxially arranged, and the end surfaces of the first bolt and the second bolt are mutually abutted;
a force application structure is arranged on the end face of one end of the second bolt;
the limiting device is sleeved on the first bolt and extrudes and fixes the external keel together with the gasket;
the gasket is arranged at the abutting position of the first bolt and the second bolt and is coaxially arranged with the second bolt;
the expansion bolt sleeve is sleeved on the second bolt and forms a gap with the gasket.
Further, the second bolt length is greater than the expansion bolt sleeve.
Further, the expansion bolt sleeve comprises: the limiting ring, the fixing part and the expansion part;
the limiting ring is arranged at one end of the fixing part, and the diameter of the limiting ring is larger than that of the fixing part;
the fixing part is used for the second bolt to pass through, and one end of the fixing part, which is far away from the limiting ring, is fixedly connected with the expansion part;
the bloated portion is two parts, every part is equipped with tooth portion and protruding portion, tooth portion with the screw thread of second bolt connects in marriage, the protruding portion extends to form the contained angle and points to the second bolt is kept away from the direction of packing ring, just two parts correspond the setting to form the clearance chamber.
Further, the void includes: a baffle plate and an expansion cavity;
the baffle is in a circular truncated cone shape and is arranged between the fixing part and the expansion part, and the diameter of one port close to the fixing part is larger than that of one port close to the expansion part;
the expansion cavity is arranged in one end of the expansion part far away from the fixing part and is divided into two parts, and each part is fixedly connected with the expansion parts of the two parts respectively.
Furthermore, an internal thread is arranged in the washer, and the first bolt and the second bolt are screwed in and abut against each other.
Further, the washer, the first bolt and the second bolt are of an integrally formed structure.
Furthermore, the limiting device is a nut.
Further, the nuts are installed in at least two.
Through the technical scheme of the utility model, can realize following technological effect:
effectively solved current bloated bolt and adjusted the big problem of the fossil fragments operation degree of difficulty, and fixed wall body is firm, and the answer condition is various, and the installation only need with adjust alone alright realize labour saving and time saving, has practiced thrift cost of labor and adjust time's cost greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an installation of an expansion bolt, a keel and a wall body with a double-thread structure;
FIG. 2 is a view of the position of the expansion bolt and keel with a double start thread configuration;
FIG. 3 is a schematic structural diagram according to a second embodiment;
FIG. 4 is an exploded view of the expansion bolt assembly;
FIG. 5 is a schematic view of the structure of the expansion bolt sleeve
FIG. 6 is an internal cross-sectional view of the expansion bolt sleeve;
reference numerals are as follows: 1. a wall body; 2. a keel; 3. an expansion bolt assembly; 4. a limiting device; 51. a first bolt; 52. a second bolt; 53. a gasket; 6. expanding the bolt sleeve; 61. a limiting ring; 62. a fixed part; 63. a protrusion; 64. a void cavity; 65. an expansion section; 66. a baffle plate; 67. and (6) expanding the cavity.
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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 6, an expansion bolt with a double-thread structure includes: the bolt comprises a first bolt 51, a second bolt 52, a washer 53, a limiting device 4 and an expansion bolt sleeve 6; the first bolt 51 and the second bolt 52 are coaxially arranged, and end faces thereof are abutted to each other; a force application structure is arranged on the end face of one end of the second bolt 52; the limiting device 4 is sleeved on the first bolt 51 and extrudes and fixes the external keel 2 with the gasket 53; a washer 53 is mounted at the abutment of the first bolt 51 and the second bolt 52 and is arranged coaxially with the second bolt 52; the expansion bolt sleeve 6 is sleeved on the second bolt 52 and forms a gap with the washer 53.
Through the technical scheme of the utility model, effectively solved current bloated bolt and adjusted the big problem of the 2 operation degree of difficulty of fossil fragments, and fixed wall body 1 is firm, and it is various to deal with the condition, and the installation only need alone alright realize with the regulation, and labour saving and time saving has practiced thrift cost of labor and adjust time's cost greatly.
As shown in fig. 1 in the specific use installation process, firstly, the expansion bolt sleeve 6 is inserted into the wall body 1, then, part of the second bolt 52 of the expansion bolt assembly 3 is screwed into the expansion bolt sleeve 6, the installation hole part of the keel 2 is sleeved on the first bolt 51, and the keel 2 is extruded and fixed through the limiting device 4, at the moment, the keel 2 and the expansion bolt assembly 3 are relatively fixed, as long as the force application structure is used for adjusting the position of the keel 2 between the expansion bolt assembly 3 and the wall body 1, the force application structure can be a cross screw, or a hexagon nut can realize the adjustment of the first bolt 51.
In order to better fix the expansion bolt sleeve 6 to the wall 1, as shown in fig. 3, the second bolt 52 is longer than the expansion bolt sleeve 6. The figure shows an embodiment, specifically, the second bolt 52 can be made longer by the positional relationship after the second bolt 52 is completely screwed into the expansion bolt sleeve 6, but it should be noted that the meaning that the length of the second bolt 52 is longer than the expansion bolt sleeve 6 is that when the position of the keel 2 is adjusted, more parts of the second bolt 52 are screwed into the expansion bolt sleeve 6 as much as possible, so that the expansion bolt sleeve 6 is fully expanded, and the expansion bolt sleeve 6 and the wall body 1 are fixed more stably; however, the second bolt 52 should not be too long, which results in a limited adjustment space, and prevents the second bolt 52 from being completely screwed into the expansion bolt sleeve 6 even if the adjustment of the keel 2 is not completed.
In the above embodiment, the expansion plug sheath 6 includes: a stop collar 61, a fixing part 62 and an expansion part 65; the limiting ring 61 is arranged at one end of the fixing part 62, and the diameter of the limiting ring is larger than that of the fixing part 62; the fixing part 62 is used for the second bolt 52 to pass through, and one end far away from the limiting ring 61 is fixedly connected with the expansion part 65; the expansion part 65 is divided into two parts, each part is provided with a tooth part and a protruding part 63, the tooth parts are matched and connected with the threads of the second bolt 52, the protruding parts 63 extend to form included angles pointing to the direction of the second bolt 52 far away from the washer 53, and the two parts are correspondingly arranged and form a clearance cavity 64. Referring to fig. 5, the limiting ring 61 can provide a better reference when the expansion bolt sleeve 6 is inserted into the wall 1, so that the expansion bolt sleeve 6 is prevented from being inserted too deeply into the wall 1 to affect subsequent installation, the second bolt 52 enters the expansion bolt sleeve 6 and passes through the fixing part 62, the second bolt 52 and the expansion bolt sleeve 6 are contacted more fully by the fixing part 62, the fixation is more stable, and the influence of splitting on the expansion part 65 is reduced; the second bolt 52 enters the fixing portion 62 and then enters the expansion portion 65, so that two parts of the expansion portion 65 expand towards two sides, and friction force between the protruding portion 63 and the wall body 1 is increased, and the fixing is firmer.
For the same purpose, as shown in fig. 6, the clearance cavity 64 comprises therein: flap 66 and inflation lumen 67; the baffle plate 66 is in a circular truncated cone shape and is arranged between the fixing part 62 and the expansion part 65, and the diameter of one port close to the fixing part 62 is larger than that of one port close to the expansion part 65; the expansion chamber 67 is mounted in the end of the expansion 65 remote from the fixed part 62 and is divided into two parts, each part fixedly connecting the two parts of the expansion 65. The effect of the fixed part 62 of separation blade 66's setting reinforcing, the elasticity of separation blade 66 itself has then been utilized in the setting of two parts, and when second bolt 52 passed, separation blade 66 kick-backs and forms the extrusion to second bolt 52 for second bolt 52 and bloated bolt cover 6 are fixed compacter, and the setting of bloated chamber 67 can make the position that bloated portion 65 is deepened expand the range more greatly, and then stronger to the extrusion of wall body 1, and it is more firm to wholly grab.
In the above embodiment, preferably, the washer 53 is internally provided with female threads, and the first bolt 51 and the second bolt 52 are screwed into contact with each other. The thickness of the keel 2 deviates when different conditions are met, so that the position of the first bolt 51 can be adjusted relatively, and when the length of the second bolt 52 exceeds the position of the expansion bolt sleeve 6 to a great extent and the adjustment is not easy, and the first bolt 51, the second bolt 52 and the washer 53 are in a detachable state, so that different installation and adjustment conditions can be met, the corresponding size can be selected correspondingly by selecting the size of the expansion bolt assembly 3, so as to adapt to more conditions.
The difference from the above embodiment is that the washer 53, the first bolt 51 and the second bolt 52 are of an integrally formed structure. In general, when the keel 2, the wall 1 and other factors are determined, the sizes of the washer 53 and the first bolt 51 and the second bolt 52 can be designed, so that the cost can be greatly reduced when the integrated components are manufactured, and the fixation among the components can be more stable.
Preferably, the stopper 4 is a nut. The nut and bolt fit is more optimal, but of course, conventional fasteners such as pins and keys may be included to achieve the same result.
Example two
At least two nuts are arranged to avoid the falling of the nuts after long-time use. Referring to fig. 3, since the keel 2 is completely received by the nut, the nut is prevented from falling off, that is, the keel 2 is prevented from falling off, which causes unnecessary safety hazards, the nuts are arranged to enhance mutual extrusion between the nuts, so that the nuts are better engaged with the threads of the first bolt 51, and similarly, the elastic pad can be arranged to achieve the purpose.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an expand and tie with double thread structure which characterized in that includes: the bolt comprises a first bolt, a second bolt, a gasket, a limiting device and an expansion bolt sleeve;
the first bolt and the second bolt are coaxially arranged, and the end surfaces of the first bolt and the second bolt are mutually abutted;
a force application structure is arranged on the end face of one end of the second bolt;
the limiting device is sleeved on the first bolt and extrudes and fixes the external keel together with the gasket;
the gasket is arranged at the abutting position of the first bolt and the second bolt and is coaxially arranged with the second bolt;
the expansion bolt sleeve is sleeved on the second bolt, and a gap is formed between the expansion bolt sleeve and the gasket.
2. The expansion bolt with a double-start threaded structure according to claim 1, wherein the second bolt length is greater than the expansion bolt sleeve.
3. The expansion bolt with a double-start thread structure according to claim 2, wherein the expansion bolt sleeve comprises: the limiting ring, the fixing part and the expansion part;
the limiting ring is arranged at one end of the fixing part, and the diameter of the limiting ring is larger than that of the fixing part;
the fixing part is used for the second bolt to pass through, and one end of the fixing part, which is far away from the limiting ring, is fixedly connected with the expansion part;
the bloated portion is two parts, and every part is equipped with tooth portion and protruding portion, tooth portion with the screw thread of second bolt connects in marriage, the protruding portion extends to form the contained angle and points to the second bolt is kept away from the direction of packing ring, just two parts correspond the setting to form the clearance chamber.
4. An expansion bolt with a double start thread structure according to claim 3, characterized in that said clearance cavity comprises: a baffle plate and an expansion cavity;
the baffle is in a circular truncated cone shape and is arranged between the fixing part and the expansion part, and the diameter of one port close to the fixing part is larger than that of one port close to the expansion part;
the expansion cavity is arranged in one end of the expansion part far away from the fixing part and is divided into two parts, and each part is fixedly connected with the expansion parts of the two parts respectively.
5. The expansion bolt with a double-ended threaded structure according to claim 1, wherein an internal thread is provided in the washer for the first bolt and the second bolt to be screwed into and abutted against each other.
6. The expansion bolt with a double-start threaded structure of claim 1, wherein the washer, the first bolt and the second bolt are of an integrally formed structure.
7. The expansion bolt with a double-start thread structure according to claim 1, wherein the limiting means is a nut.
8. The expansion bolt with a double thread structure of claim 7, wherein at least two nuts are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222379528.7U CN217842282U (en) | 2022-09-07 | 2022-09-07 | Expansion bolt with double-end thread structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222379528.7U CN217842282U (en) | 2022-09-07 | 2022-09-07 | Expansion bolt with double-end thread structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842282U true CN217842282U (en) | 2022-11-18 |
Family
ID=84015995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222379528.7U Active CN217842282U (en) | 2022-09-07 | 2022-09-07 | Expansion bolt with double-end thread structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842282U (en) |
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2022
- 2022-09-07 CN CN202222379528.7U patent/CN217842282U/en active Active
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