CN114922288A - High-strength bolt and steel mesh frame bolt ball joint connecting structure - Google Patents
High-strength bolt and steel mesh frame bolt ball joint connecting structure Download PDFInfo
- Publication number
- CN114922288A CN114922288A CN202210703661.5A CN202210703661A CN114922288A CN 114922288 A CN114922288 A CN 114922288A CN 202210703661 A CN202210703661 A CN 202210703661A CN 114922288 A CN114922288 A CN 114922288A
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- bolt
- screw
- ball joint
- fluted disc
- bolt ball
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1957—Details of connections between nodes and struts
- E04B2001/196—Screw connections with axis parallel to the main axis of the strut
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a high-strength bolt and steel mesh frame bolt ball joint connecting structure, wherein the high-strength bolt comprises two coaxially arranged screw rods, the end parts of the screw rods are fixedly provided with bolt heads, the two bolt heads are fixedly connected, one side of the bolt head, which is far away from the screw rods, is provided with a positioning half hole, and after the two bolt heads are fixedly connected, the two positioning half holes are buckled to form a positioning hole. The steel mesh frame bolt ball joint connecting structure can quickly and fixedly connect the bolt ball and the steel pipe with the stud bolt, is simple and convenient to operate, does not need to disassemble the steel pipe when maintaining and screwing the loosened high-strength bolt in the later period, and is very convenient and fast.
Description
Technical Field
The invention relates to the field of steel mesh frame structures, in particular to a high-strength bolt and a steel mesh frame bolt-ball joint connecting structure.
Background
The bolt ball joint net rack is a steel structure net rack commonly used in steel components, most of the components can be prefabricated and completed in a factory, and only the components need to be transported to a field for assembly, so that the bolt ball joint net rack is simple, convenient and fast to install, time-saving and labor-saving, is very suitable for being adopted in places with short construction period and simple construction conditions.
In the prior art, a bolt ball and a steel pipe are usually connected by a bolt, a bolt head is located in the steel pipe, one end of a screw, which is far away from the bolt head, extends out of the end of the steel pipe, is inserted into the bolt ball and is spirally and fixedly connected with the bolt ball, and the bolt ball and the steel pipe are fixedly connected together by the bolt. The connection mode is simple, convenient and quick in construction, but the connection firmness is not strong, the time is long, the steel pipe is liable to shift relative to the bolt ball under the action of self gravity, then the steel pipe is caused to swing on the connecting bolt, after all, the end part of the steel pipe is kept to be tightly pressed and fixedly connected with the bolt ball by the connecting bolt, the bolt head is not limited in any axial direction of the steel pipe, once the steel pipe shifts relative to the bolt ball, the steel pipe swings relative to the bolt head, the end part of the steel pipe loses a supporting point which is tightly pressed and connected with the bolt ball, even if the bolt is still fixedly connected with the bolt ball at the moment, the steel pipe still has the problem of swinging, and the safety of the steel structure grid is endangered.
Disclosure of Invention
The invention mainly aims to provide a high-strength bolt and steel mesh frame bolt-ball joint connecting structure, and aims to solve the problems that the existing steel mesh frame bolt-ball joint connecting structure in the background technology is not strong in firmness and reliability, and the safety of a steel structure mesh frame is endangered by steel pipe shaking.
In order to solve the problems, the high-strength bolt provided by the invention comprises two coaxially arranged screw rods, wherein the end parts of the screw rods are fixedly provided with bolt heads, the two bolt heads are fixedly connected, one side of the bolt head, which is far away from the screw rods, is provided with a positioning half hole, and the two positioning half holes are buckled to form a positioning hole after the two bolt heads are fixedly connected.
In one embodiment, the two bolt heads are fixedly connected through the connecting pin in an inserted mode.
In addition, in order to solve the above problems, the invention further provides a steel truss bolt ball joint connecting structure, which comprises a bolt ball, a conical head and the high-strength bolt, wherein the surface of the bolt ball and the end part of the conical head are both provided with threaded holes, a screw cylinder is sleeved outside the screw, and the screw cylinder can be screwed into the threaded hole of the bolt ball or the conical head.
In one embodiment, an end-toothed disc I is coaxially and fixedly arranged at one end of the screw cylinder close to the bolt head;
the utility model discloses a portable quick-witted, including screw rod, movable ring, end fluted disc two, fixed ring and screw rod swing joint, but the end fluted disc two keeps and end fluted disc one meshing with the end fluted disc one, the end fluted disc two that is close to the bolt head on the screw rod is equipped with solid fixed ring and movable ring, gu fixed ring goes up and has set firmly many slide bars along axial direction, the activity ring sliding sleeve is on the slide bar, the coaxial end fluted disc two that has set firmly on the activity ring, gu fixed ring goes up the coaxial end fluted disc three that has set firmly, gu pass through spring elastic connection between fixed ring and the activity ring, the spring extends along the length direction of slide bar for promote the activity ring along the slide bar slip messenger end fluted disc two keep with end fluted disc one meshing.
In one embodiment, a rotating shaft is rotatably mounted in the positioning hole, a gear meshed with the end tooth discs on the two screws is sleeved on the rotating shaft, and the rotation of the gear can drive the screw cylinders on the two screws to move close to or away from each other.
In one embodiment, the rotating shaft comprises a cylinder and a prism which are coaxially and fixedly connected, and the gear is sleeved on the prism in a sliding manner.
In one embodiment, the bolt ball and the threaded hole on the conical head have the same hole depth;
the distance between the bolt ball and the conical head is equal to the axial length of the high-strength bolt.
In one embodiment, the outer axial sliding sleeve of spiral shell has the casing, and two casings can be dismantled and link firmly, protect and be equipped with the through-hole that supplies the pivot to run through on the casing.
In one embodiment, an annular sliding groove coaxial with the screw cylinder is formed in the inner wall of the protective cylinder, and one ends of the sliding rods, far away from the fixing ring, extend into the annular sliding groove and can slide along the annular sliding groove.
Has the beneficial effects that: according to the high-strength bolt, the stud bolt is fixedly connected with the bolt ball and the steel pipe through the threads, so that even if the steel pipe deviates relative to the bolt ball, the bolt ball and the steel pipe are still fixedly connected with the stud bolt, the steel pipe cannot shake, and the safety of a steel structure net rack is ensured;
the steel mesh frame bolt ball joint connecting structure can quickly and fixedly connect the bolt ball and the steel pipe with the stud bolt, is simple and convenient to operate, does not need to disassemble the steel pipe when the loosened high-strength bolt is maintained and screwed in the later period, and is very convenient and fast.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a high strength bolt of the present invention;
FIG. 2 is a schematic view showing a bolt-ball joint connecting structure for a steel truss according to the present invention;
FIG. 3 is a front view of the steel truss bolt-ball joint connection structure of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a cross-sectional view C-C of FIG. 3;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 3;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic structural view of the casing of the present invention;
fig. 9 is a connection view of the steel truss bolting ball joint connection structure according to the present invention.
The reference numerals are explained below:
1. a screw; 2. a bolt head; 3. a connecting pin; 4. a screw cylinder; 5. an end tooth disc I; 6. a end tooth disc II; 7. a movable ring; 8. a slide bar; 9. a fixing ring; 10. a spring; 11. a third end tooth disc; 12. a gear; 13. a hexagonal prism; 14. a cylinder; 15. a right protective cylinder; 16. a left protective cylinder; 17. a through hole; 18. an annular chute; 19. a bolt; 20. a bolt ball; 21. a first threaded hole; 22. a steel pipe; 23. a second threaded hole; 24. positioning the half-hole; 25. a conical head; 26. and (7) positioning the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a high-strength bolt which is fixedly connected with a bolt ball 20 and a steel pipe 22 through threads by adopting a stud bolt, so that even if the steel pipe 22 deviates relative to the bolt ball 20, the bolt ball 20 and the steel pipe 22 are still fixedly connected with the stud bolt respectively, the steel pipe 22 cannot shake, and the safety of a steel structure net rack is ensured.
In an embodiment of the invention, as shown in fig. 1, the high-strength bolt includes two coaxially arranged screw rods 1, a bolt head 2 is fixedly arranged at an end of each screw rod 1, the two bolt heads 2 are fixedly connected, a positioning half-hole 24 is arranged on one side of each bolt head 2, which is far away from the screw rod 1, and the two positioning half-holes 24 are buckled to form a positioning hole 26 after the two bolt heads 2 are fixedly connected.
Further, in this embodiment, as shown in fig. 6 and 7, two bolt heads 2 are fixedly connected by inserting the connecting pin 3, so that the high-strength stud bolt of this embodiment can be conveniently manufactured by simply processing a common single-head high-strength bolt, and the cost reduction is facilitated.
In addition, in order to solve the above problems, the invention further provides a steel truss bolt-ball joint connecting structure, which includes a bolt ball 20, a conical head 25 and the high-strength bolt, as shown in fig. 9, the conical head 25 is integrally formed with one end of a steel pipe 22, threaded holes are formed in the surface of the bolt ball 20 and the end of the conical head 25, and the threaded holes are blind holes, and for convenience of description, the threaded hole on the bolt ball 20 in fig. 9 can be referred to as a first threaded hole 21, and the threaded hole on the conical head 25 can be referred to as a second threaded hole 23.
In this embodiment, as shown in fig. 2, 3, 6 and 7, the screw barrel 4 is externally sleeved on the screw rod 1 to control the high-strength bolt to be immobile, and then the screw barrel 4 is rotated to separate the two screw barrels 4 on the high-strength bolt from each other, as shown in fig. 9, as the screw barrel 4 continuously rotates in the same direction, the screw barrel 4 at the left end moves leftwards and can be screwed into the first threaded hole 21 on the bolt ball 20, the screw barrel 4 at the left end is screwed and fixedly connected with the bolt ball 20 through the first threaded hole 21, the screw barrel 4 at the right end moves rightwards and can be screwed into the second threaded hole 23 of the conical head 25, the screw barrel 4 at the right end is screwed and fixedly connected with the steel pipe 22 through the second threaded hole 23, and the two screw barrels 4 are screwed and fixedly connected with the screw rod 1 of the high-strength bolt, so that the high-strength bolt can be screwed and fixedly connected with the bolt ball 20 and the steel pipe 22 through the screw barrel 4, even if the steel pipe 22 deviates from the bolt ball 20, the bolt ball 20 and the steel pipe 22 are respectively still fixedly connected with the stud bolt through threads through the screw cylinder 4, and the steel pipe 22 cannot shake, so that the safety of the steel structure net rack is ensured.
In this embodiment, the inner wall and the outer wall of barrel 4 all have the screw thread, and the internal thread is used for linking soon with screw rod 1 screw thread and links firmly, and the external screw thread is used for linking soon with the screw hole and links firmly.
In this embodiment, as shown in fig. 6 and 7, an end-toothed disc 5 is fixedly disposed at one end of each of the two screw cylinders 4 close to the bolt head 2, a central axis of the end-toothed disc 5 coincides with a central axis of the screw cylinder 4, and the rotation of the end-toothed disc 5 can drive the screw cylinders 4 to rotate to adjust the distance between the two screw cylinders 4.
In this embodiment, as shown in fig. 6 and 7, a fixed ring 9 and a movable ring 7 are sleeved on one end of each of the two screws 1 close to the screw head 2, the fixed ring 9 and the movable ring 7 are coaxially arranged with the screws 1, the movable ring 7 is located between the fixed ring 9 and the screw barrel 4, the fixed ring 9 is only rotatably connected with the screws 1 and cannot slide along the axial direction of the screws 1, that is, the fixed ring 9 only can rotate, the movable ring 7 is rotatably connected with the screws 1 in a sliding manner, that is, the movable ring 7 can rotate or slide along the axial direction of the screws 1, a plurality of sliding rods 8 are fixedly arranged on the fixed ring 9 along the axial direction of the screws 1, the movable ring 7 is slid on the sliding rods 8 in a sliding manner, so that the movable ring 7 can slide along the stable axial direction of the sliding rods 8, the rotation of the fixed ring 9 drives the movable ring 7 to rotate synchronously through the plurality of sliding rods 8, preferably, as shown in figure 5, a plurality of sliding rods 8 are distributed on the fixed ring 9 in a central symmetry manner, and by means of the design, the sliding stability of the movable ring 7 can be improved.
In this embodiment, as shown in fig. 7, the movable ring 7 is fixedly provided with a second end-toothed disc 6, the second end-toothed disc 6 is coaxially disposed with the movable ring 7 and the first end-toothed disc 5, the second end-toothed disc 6 is capable of being meshed with the first end-toothed disc 5, the fixed ring 9 is fixedly provided with a third end-toothed disc 11, the third end-toothed disc 11 is coaxially disposed with the fixed ring 9, a compressed spring 10 is disposed between the fixed ring 9 and the movable ring 7, and the spring 10 is capable of extending or compressing along the length direction of the sliding rod 8, as shown in fig. 7, so that the compressed spring 10 is designed to push the movable ring 7 to slide along the sliding rod 8 away from the fixed ring 9, so that the second end-toothed disc 6 is permanently meshed with the first end-toothed disc 5.
In this embodiment, the rotation of the fixed ring 9 can drive the screw cylinder 4 to rotate through the movable ring 7, even if the screw cylinder 4 gradually moves away from or approaches the fixed ring 9 after the rotation of the screw cylinder 4, the existence of the compressed spring 10 ensures that the movable ring 7 can synchronously move along with the screw cylinder 4, so as to ensure that the end-toothed disc 6 is always meshed with the end-toothed disc one 5.
Preferably, the compressed spring 10 is slid on the sliding rod 8, one end of the spring 10 is connected with the fixed ring 9, and the other end is connected with the movable ring 7.
In this embodiment, as shown in fig. 7, the pivot is installed in the gyration in the locating hole 26, the cover is equipped with the gear 12 with the three 11 meshing of end-toothed disc in two screw rods 1 in the pivot, gear 12 rotates and can drive three 11 rotations of two end-toothed disc, drive solid fixed ring 9 rotations through three 11 of end-toothed disc, then drive the barrel 4 rotation by activity ring 7, realize the barrel 4 function that is close to each other or keeps away from on two screw rods 1, the design like this, the trouble of rotatory solid fixed ring 9 one by one has been saved, can realize through rotatory pivot that two barrel 4 are rotatory to be close to each other or keep away from each other simultaneously, the installation of the steel framework bolt ball node connection structure of this embodiment that makes is simple convenient and fast more, can link firmly bolt ball 20 and steel pipe 22 with stud fast, time saving and labor saving, and good practicality.
Preferably, in order to enable the rotating shaft to rotate, two screw cylinders 4 can be simultaneously screwed with the threaded holes on the bolt ball 20 and the conical head 25 in place, the hole depths of the threaded holes on the bolt ball 20 and the conical head 25 are equal, and the distance between the bolt ball 20 and the conical head 25 is equal to the axial length of the high-strength bolt, in such a design, as shown in fig. 9, after the high-strength bolt of the embodiment is placed on the connecting line of the threaded hole one 21 and the threaded hole two 23 and the high-strength bolt is coaxial with the threaded hole one 21, the distances between the rotating shaft and the threaded hole one 21 and the threaded hole two 23 are equal, then the rotating shaft is rotated to drive the two screw cylinders 4 to be simultaneously screwed into the threaded hole one 21 and the threaded hole two 23 and simultaneously abut against the hole bottoms of the threaded hole one 21 and the threaded hole two 23 to complete the connection and installation of the steel truss bolt node connection structure, the rotating shaft is reversely rotated during the later period of assembly and disassembly, and operation are simple, convenient and rapid, time and labor are saved.
The steel truss bolt ball node connection structure of this embodiment uses a period of back, if discovery steel pipe 22 takes place the skew for bolt ball 20 relatively in patrolling and examining the maintenance, but the rotatable shaft makes the bottom of hole of spiral shell section of thick bamboo 4 and screw hole resume the butt can, need not to dismantle steel pipe 22, and is very convenient.
In this embodiment, as shown in fig. 4, 6 and 7, the rotating shaft includes a cylinder 14 and a prism that are coaxially and fixedly connected, the gear 12 is slid on the prism, the cylinder 14 is rotatably installed in the positioning hole 26, preferably, the prism shown in fig. 4 is a hexagonal prism 13, and thus the rotating shaft can be moved after the installation and the connection of the steel mesh frame bolt-ball joint connecting structure of the embodiment are completed, the rotating shaft penetrating gear 12 is inserted into the positioning hole 26 when the distance between the two screw cylinders 4 needs to be adjusted next time, accordingly, the rotating shaft can be fixedly connected with the tool bit of the electric screwdriver, and the screw cylinders 4 can be conveniently and quickly adjusted in place through the electric screwdriver by means of the rotating shaft each time when the distance between the two screw cylinders 4 needs to be adjusted.
Further, in this embodiment, as shown in fig. 2, 3 and 6, the outer shaft of the screw cylinder 4 is axially slidably sleeved with a protecting cylinder, the bolt head 2, the fixing ring 9, the movable ring 7, the spring 10, the sliding rod 8, the end-toothed disc 5, the end-toothed disc two 6 and the end-toothed disc three 11 are wrapped by the two protecting cylinders to be isolated from the outside so as to prevent the above components from being damaged by a foreign object, and at this time, as shown in fig. 4, the protecting cylinder is provided with a through hole 17 through which the rotating shaft passes.
In this embodiment, two protect a section of thick bamboo and can dismantle and link firmly, for example shown in fig. 7 and fig. 8, two protect a section of thick bamboo and mark respectively as left side and protect a section of thick bamboo 15 with the right side, the left end face that the right side protected a section of thick bamboo 15 is equipped with a plurality of bolts 19, the right-hand member face that the left side protected a section of thick bamboo 16 is equipped with and supplies bolt 19 to insert the jack wherein, and a left side protects a section of thick bamboo 16 and right side and protects a section of thick bamboo 15 and can dismantle the grafting through bolt 19 and link firmly.
Further, in this embodiment, as shown in fig. 8, an annular chute 18 coaxial with the screw cylinder 4 is arranged on the inner wall of the protective cylinder, and one ends of the plurality of sliding rods 8, which are far away from the fixing ring 9, extend into the annular chute 18 and can slide along the annular chute 18, so that the limitation on the sliding rods 8 is further improved, and the sliding rods are not prone to swinging in the process that the fixing ring 9 drives the movable ring 7 to rotate.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The high-strength bolt is characterized by comprising two coaxially arranged screw rods, wherein bolt heads are fixedly arranged at the end parts of the screw rods, the two bolt heads are fixedly connected, a positioning half hole is formed in one side, deviating from the screw rods, of the bolt head, and the two positioning half holes are buckled to form a positioning hole after the two bolt heads are fixedly connected.
2. The high strength bolt according to claim 1, wherein two bolt heads are fixedly connected by means of a connecting pin.
3. A steel truss bolt ball joint connection structure is characterized by comprising a bolt ball, a conical head and the high-strength bolt of claim 1 or 2, wherein the surface of the bolt ball and the end part of the conical head are respectively provided with a threaded hole, a screw cylinder is sleeved outside the screw rod in a threaded manner, and the screw cylinder can be screwed into the threaded hole of the bolt ball or the conical head.
4. The steel space frame bolt ball joint connecting structure as defined in claim 3, wherein a first end-toothed disc is coaxially and fixedly arranged at one end of the screw cylinder close to the bolt head; the utility model discloses a portable quick-witted, including screw rod, movable ring, end fluted disc two, fixed ring and screw rod swing joint, but the end fluted disc two keeps and end fluted disc one meshing with the end fluted disc one, the end fluted disc two that is close to the bolt head on the screw rod is equipped with solid fixed ring and movable ring, gu fixed ring goes up and has set firmly many slide bars along axial direction, the activity ring sliding sleeve is on the slide bar, the coaxial end fluted disc two that has set firmly on the activity ring, gu fixed ring goes up the coaxial end fluted disc three that has set firmly, gu pass through spring elastic connection between fixed ring and the activity ring, the spring extends along the length direction of slide bar for promote the activity ring along the slide bar slip messenger end fluted disc two keep with end fluted disc one meshing.
5. The steel truss bolt ball joint connecting structure as defined in claim 4, wherein a rotating shaft is rotatably mounted in said positioning hole, said rotating shaft is sleeved with a gear engaging with three end-toothed discs on two screws, and said gear rotation can drive the screw cylinders on two screws to move toward or away from each other.
6. The steel truss bolt-ball joint connecting structure as defined in claim 5 wherein said rotating shaft includes a cylinder and a prism coaxially fixed, and said gear is slipped on the prism.
7. The steel truss bolt ball joint connection structure as defined in claim 5, wherein said bolt ball and said threaded hole on the conical head have the same hole depth; the distance between the bolt ball and the conical head is equal to the axial length of the high-strength bolt.
8. The steel space frame bolt ball joint connecting structure according to claim 5, wherein a protecting cylinder is axially slidably sleeved outside the screw cylinder, two protecting cylinders are detachably and fixedly connected, and a through hole for the rotating shaft to penetrate through is formed in each protecting cylinder.
9. The steel space frame bolt ball joint connection structure as claimed in claim 8, wherein said protecting tube has an annular sliding groove on its inner wall, which is coaxial with said screw tube, and one ends of said plurality of sliding rods, which are away from said fixing ring, extend into said annular sliding groove and can slide along said annular sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210703661.5A CN114922288B (en) | 2022-06-21 | 2022-06-21 | Bolt ball joint connecting structure of steel net rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210703661.5A CN114922288B (en) | 2022-06-21 | 2022-06-21 | Bolt ball joint connecting structure of steel net rack |
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| CN114922288A true CN114922288A (en) | 2022-08-19 |
| CN114922288B CN114922288B (en) | 2023-05-02 |
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| CN202210703661.5A Active CN114922288B (en) | 2022-06-21 | 2022-06-21 | Bolt ball joint connecting structure of steel net rack |
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| CN214274189U (en) * | 2020-12-28 | 2021-09-24 | 常州晨虹不锈钢制品有限公司 | Stainless steel wire stud |
| CN113586577A (en) * | 2021-07-01 | 2021-11-02 | 浙江意动科技股份有限公司 | Double-bolt head bolt of anti-skid thread |
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2022
- 2022-06-21 CN CN202210703661.5A patent/CN114922288B/en active Active
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| DE4312127A1 (en) * | 1993-04-14 | 1994-10-20 | Armin Mylaeus | Simplified junction connection for three-dimensional frameworks formed from tubes |
| JPH10102581A (en) * | 1996-10-02 | 1998-04-21 | Sankyo Alum Ind Co Ltd | Strut and structural member |
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| CN214274189U (en) * | 2020-12-28 | 2021-09-24 | 常州晨虹不锈钢制品有限公司 | Stainless steel wire stud |
| CN113586577A (en) * | 2021-07-01 | 2021-11-02 | 浙江意动科技股份有限公司 | Double-bolt head bolt of anti-skid thread |
| CN113915220A (en) * | 2021-10-08 | 2022-01-11 | 张东 | High-strength bolt for steel net frame bolt ball joint |
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| CN114922288B (en) | 2023-05-02 |
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