CN212613009U

CN212613009U - Novel net rack rod piece

Info

Publication number: CN212613009U
Application number: CN202021078470.7U
Authority: CN
Inventors: 张权; 孔德福; 夏芝霞; 高修岭; 李文利
Original assignee: Shandong Huayi Steel Machinery Co ltd
Current assignee: Shandong Huayi Steel Machinery Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-26
Anticipated expiration: 2030-06-12

Abstract

The utility model relates to a novel rack member, a conical head has been welded respectively at the both ends of rack member body, it has a connecting bolt to run through respectively in the conical head, connecting bolt includes bolt head, polished rod section and the screw rod section of coaxial setting, the both ends of polished rod section respectively with bolt head, screw rod section integrated into one piece, detachable installs the spacing ring on the outer wall of polished rod section, still establish the sleeve outside the polished rod section including the cover, be provided with on the telescopic inner wall with spacing ring complex inner ring recess. The utility model discloses following beneficial effect has: under the action of the limiting ring, the long hexagonal sleeve cannot jack the bolt back into the net rack rod piece body again, so that unnecessary labor is avoided; the synchronous rotation of the sleeve and the bolt is transmitted by matching the inner hole B with the polish rod B, so that the high-strength bolt is conveniently screwed down. The friction force between the sleeve and the conical head is used for avoiding the integral rotation of the connecting bolt and the sleeve, so that the connecting bolt has the effect of stopping the side.

Description

Novel net rack rod piece

Technical Field

The utility model relates to a novel rack member belongs to building steel construction technical field.

Background

The net frame is a novel roof bearing structure emerging in recent years, changes the stress state of a common plane frame structure, and can bear loads from all aspects. Novel structure is pleasing to the eye, and the member regularity is strong, and the net is drawn one, and the wholeness is good, and space rigidity is big, and anti-seismic performance is good, all adopts bolted ball to connect between the member, the installation of being convenient for, and is easy and simple to handle, and the atress is clear and definite. It is widely used for bearing structures of roofs of gymnasiums, exhibition halls, restaurants, waiting rooms, warehouses, single-layer multi-span industrial plants and the like.

The connection structure principle of the existing bolt-ball joint is as follows: the method comprises the steps of firstly welding conical heads provided with bolts at two ends of a steel pipe rod piece, sleeving a long hexagonal sleeve (or called long hexagonal non-threaded nut) on a screw rod extending out of the conical heads, connecting the bolts and the sleeve together by fastening screws, directly screwing the long hexagonal sleeve during assembly, driving the bolts to rotate by the fastening screws, and screwing the bolts into a sphere until the bolt heads are tightly attached to the conical heads, wherein all converging rod pieces are connected according to the connection to form nodes.

The existing grid structure is reasonable, but still has partial defects: 1. the long hexagonal sleeve is sleeved on the screw rod extending out of the conical head, and in terms of the step, because the screw rod is not fixedly connected with the conical head, the screw rod section only directly penetrates out of the conical head hole of the conical head. 2. The synchronous rotation of the sleeve and the bolt is realized through the action of the fastening screw, and the section of the fastening screw is small, so that the fastening screw is easy to be broken when the required torque is large, and the high-strength bolt cannot be screwed. 3. The installation of the fastening screw also needs corresponding tools such as a screwdriver and the like, and the fastening screw is directly small, so that the installation process is not easy.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: in order to solve one of the above problems, a novel net rack rod is provided.

Novel rack member, including rack member body, a conical head has been welded respectively at the both ends of rack member body, it has a connecting bolt, its characterized in that to run through respectively in the conical head: the connecting bolt comprises a bolt head, a polished rod section and a threaded rod section which are coaxially arranged, the two ends of the polished rod section are integrally formed with the bolt head and the threaded rod section respectively, a limiting ring is detachably mounted on the outer wall of the polished rod section, the connecting bolt further comprises a sleeve which is sleeved outside the polished rod section, and an inner ring groove matched with the limiting ring is formed in the inner wall of the sleeve.

Preferably, the polished rod section comprises a polished rod a with a circular cross section and a polished rod B with a regular hexagonal cross section, two ends of the polished rod a are respectively connected with the bolt head and the polished rod B, the other end of the polished rod B is connected with the threaded rod section, and the center lines of the bolt head, the polished rod a, the polished rod B and the threaded rod section are overlapped.

Preferably, the outer wall of the sleeve is a regular hexagon, the inner wall of the sleeve is provided with an inner hole A and an inner hole B which are communicated with each other, the section of the inner hole A is circular, the inner wall of the inner hole A is matched with the outer wall of the polish rod A, the section of the inner hole B is a regular hexagon, and the inner wall of the inner hole B is matched with the outer wall of the polish rod B.

Preferably, the outer wall of the polish rod A is provided with an outer ring groove for placing a limit ring, the inner ring of the limit ring is arranged in the outer ring groove, and the outer ring of the limit ring is arranged in the inner ring groove.

Preferably, the limiting ring comprises a ring body, and a notch is formed in the ring body, so that the inner diameter and the outer diameter of the limiting ring can be changed under the action of an external force.

Preferably, the connecting bolt is a high-strength bolt.

Preferably, the conical head comprises a conical head body, the conical head body is provided with a conical head inner hole, and the outer diameter of the limiting ring is larger than the inner diameter of the conical head inner hole.

Preferably, the diameter of the circumscribed circle of the polish rod B with the cross section of a regular hexagon is larger than the outer diameter of the polish rod A, the thickness of the limiting ring is 2-8mm, and the limiting ring is made of plastic or metal.

Preferably, the length of the inner hole A is 1/5-1/3 of the length of the inner hole B, and the end part of the outer end of the inner hole A of the sleeve is provided with a chamfer so as to be beneficial to press fitting of the limiting ring.

Preferably, the outer wall of the sleeve is provided with an observation hole communicated with the inner ring groove.

Compared with the prior art, the utility model discloses following beneficial effect has: 1. in the novel net rack rod piece, after the threaded rod section of the connecting bolt directly penetrates out of the conical head hole of the conical head, the limiting ring is firstly installed in the outer ring groove on the surface of the polished rod A, and then the long hexagonal sleeve is sleeved, so that the long hexagonal sleeve can not jack the bolt back into the net rack rod piece body again under the action of the limiting ring, and the unnecessary labor is avoided being increased; 2. the synchronous rotation of the sleeve and the bolt is transmitted by matching the inner hole B with the polish rod B, so that the high-strength bolt is conveniently screwed; 3. the limiting ring is used for replacing a fastening screw, so that the limiting ring is more convenient to mount; 4. under hole A and polished rod A's mating reaction, the inner circle of spacing ring is installed in the outer loop recess, the outer lane of spacing ring is installed in the inner loop recess, and the spacing ring restricts telescopic position, and the telescopic tip of restriction pastes tightly on the terminal surface of conical head, relies on the frictional force between sleeve and the conical head to have avoided connecting bolt and the integrative rotation of sleeve for connecting bolt has stopping side effect.

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 technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the stop collar;

FIG. 3 is an enlarged view of the sleeve;

FIG. 4 is an enlarged view of the structure of the connecting bolt;

FIG. 5 is a schematic view of the installation step of the stop collar;

FIG. 6 is a first schematic view of a sleeve installation step;

FIG. 7 is a second schematic view of the sleeve installation step;

FIG. 8 is a schematic structural view of a second construction of the sleeve;

in the figure: 1. the net rack rod piece comprises a net rack rod piece body 2, a conical head 3, a bolt ball 4, a connecting bolt 4.1, a bolt head 4.2, a polished rod section 4.3, a threaded rod section 4.4, a polished rod A4.5, a polished rod B5, a limiting ring 5.1, a ring body 5.2, a notch 6, a sleeve 6.1, an inner hole A6.2, an inner hole B6.3, a chamfer 7, an inner ring groove 8, an outer ring groove 9 and an observation hole.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Example one

As shown in fig. 1-7, novel rack member, including rack member body 1, a conical head 2 has been welded respectively at the both ends of rack member body 1, a connecting bolt 4 has been run through respectively in the conical head 2, connecting bolt 4 includes bolt head 4.1, polished rod section 4.2 and the screw rod section 4.3 of coaxial setting, the both ends of polished rod section 4.2 respectively with bolt head 4.1, screw rod section 4.3 integrated into one piece, detachable installs spacing ring 5 on the outer wall of polished rod section 4.2, still establish the sleeve 6 at polished rod section 4.2 outside including the cover, be provided with on the inner wall of sleeve 6 with spacing ring 5 complex inner ring recess 7.

In this embodiment, the polish rod section 4.2 includes a polish rod a4.4 with a circular cross section and a polish rod B4.5 with a regular hexagon cross section, two ends of the polish rod a4.4 are respectively connected with a bolt head 4.1 and a polish rod B4.5, the other end of the polish rod B4.5 is connected with a threaded rod section 4.3, and the center lines of the bolt head 4.1, the polish rod a4.4, the polish rod B4.5 and the threaded rod section 4.3 are overlapped; the outer wall of the sleeve 6 is regular hexagon, the inner wall of the sleeve 6 is provided with an inner hole A6.1 and an inner hole B6.2 which are communicated with each other, the section of the inner hole A6.1 is circular, the inner wall of the inner hole A6.1 is matched with the outer wall of the polished rod A4.4, the section of the inner hole B6.2 is regular hexagon, and the inner wall of the inner hole B6.2 is matched with the outer wall of the polished rod B4.5; an outer ring groove 8 for placing a limiting ring 5 is formed in the outer wall of the polished rod A4.4, the inner ring of the limiting ring 5 is installed in the outer ring groove 8, and the outer ring of the limiting ring 5 is installed in the inner ring groove 7; the limiting ring 5 comprises a ring body 5.1, and a gap 5.2 is formed in the ring body 5.1, so that the inner diameter and the outer diameter of the limiting ring 5 can be changed under the action of external force; the connecting bolt 4 is a high-strength bolt; the conical head 2 comprises a conical head body, the conical head body is provided with a conical head inner hole, and the outer diameter of the limiting ring 5 is larger than the inner diameter of the conical head inner hole; the diameter of the circumscribed circle of the polish rod B4.5 with the cross section of a regular hexagon is larger than the outer diameter of the polish rod A4.4, the thickness of the limiting ring 5 is 2-8mm, and the material is plastic or metal; the length of the inner hole A6.1 is 1/5-1/3 of the length of the inner hole B6.2, and the end part of the outer end of the inner hole A6.1 of the sleeve 6 is provided with a chamfer 6.3.

The utility model discloses a construction step: after the threaded rod section of the connecting bolt directly penetrates out of the conical head hole of the conical head, a limiting ring is installed in an outer ring groove on the surface of the polish rod A, then a long hexagonal sleeve is sleeved on the limiting ring, the long hexagonal sleeve cannot jack the bolt back into the net rack rod piece body again under the action of the limiting ring, the installation step of the sleeve 6 refers to (figures 4-7), figure 5 shows the state that the limiting ring 5 is installed, the sleeve 6 is sleeved on the connecting bolt 4 to form the state shown in figure 6, the sleeve 6 is rotated through external force under the matching of an inner hole B6.2 and the polish rod B4.5, so that the sleeve 6 drives the connecting bolt 4 to rotate, the threaded rod section 4.3 of the connecting bolt 4 is in threaded connection with the bolt ball 3, the threaded rod section 4.3 is continuously screwed into the bolt ball 3, the right end of the sleeve 6 abuts against the end face of the bolt ball 3, the sleeve 6 is pushed to approach the bolt head 4.1, and the limiting ring 5 enters, the inner ring of the limiting ring is arranged in the outer ring groove, the outer ring of the limiting ring is arranged in the inner ring groove, the position of the sleeve is limited by the limiting ring, the state shown in figure 7 is formed, and the installation is also finished.

In the second embodiment, referring to fig. 1 to 8, the difference from the first embodiment is that an observation hole 9 communicated with the inner ring groove 7 is formed in the outer wall of the sleeve 6, the outer wall of the limit ring 5 can be coated with a red coating, and the observation hole 9 is used for observing whether the limit ring 5 is in place, so that the connecting bolt 4 is prevented from being loosened or tightened too much.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel rack rod piece, includes rack rod piece body (1), a conical head (2) have been welded respectively at the both ends of rack rod piece body (1), it has a connecting bolt (4), its characterized in that to run through respectively in conical head (2): connecting bolt (4) are including bolt head (4.1), polished rod section (4.2) and the screw rod section (4.3) of coaxial setting, the both ends of polished rod section (4.2) respectively with bolt head (4.1), screw rod section (4.3) integrated into one piece, stop collar (5) are installed to detachable on the outer wall of polished rod section (4.2), still establish sleeve (6) at polished rod section (4.2) outside including the cover, be provided with on the inner wall of sleeve (6) with stop collar (5) complex inner ring recess (7).

2. The novel rack bar of claim 1, wherein: the polished rod section (4.2) comprises a polished rod A (4.4) with a circular cross section and a polished rod B (4.5) with a regular hexagonal cross section, the two ends of the polished rod A (4.4) are respectively connected with a bolt head (4.1) and a polished rod B (4.5), the other end of the polished rod B (4.5) is connected with a threaded rod section (4.3), and the center lines of the bolt head (4.1), the polished rod A (4.4), the polished rod B (4.5) and the threaded rod section (4.3) coincide.

3. The novel rack bar of claim 2, wherein: the outer wall of sleeve (6) is regular hexagon, and sleeve (6) inner wall has hole A (6.1) and hole B (6.2) that communicate each other, the cross-section of hole A (6.1) is circular, and its inner wall cooperatees with the outer wall of polished rod A (4.4), and the cross-section of hole B (6.2) is regular hexagon, and its inner wall cooperatees with the outer wall of polished rod B (4.5).

4. The novel rack bar of claim 3, wherein: an outer ring groove (8) used for placing the limiting ring (5) is formed in the outer wall of the polished rod A (4.4), the inner ring of the limiting ring (5) is installed in the outer ring groove (8), and the outer ring of the limiting ring (5) is installed in the inner ring groove (7).

5. The novel rack bar of claim 4, wherein: the limiting ring (5) comprises a ring body (5.1), and a notch (5.2) is formed in the ring body (5.1).

6. The novel rack bar of claim 5, wherein: the connecting bolt (4) is a high-strength bolt.

7. The novel rack bar of claim 6, wherein: conical head (2) are including the conical head body, the conical head body has the conical head hole, the external diameter of spacing ring (5) is greater than the internal diameter of conical head hole.

8. The novel rack bar of claim 7, wherein: the diameter of the circumscribed circle of the polish rod B (4.5) with the cross section of a regular hexagon is larger than the outer diameter of the polish rod A (4.4), the thickness of the limiting ring (5) is 2-8mm, and the limiting ring is made of plastic or metal.

9. The novel rack bar of claim 8, wherein: the length of the inner hole A (6.1) is 1/5-1/3 of the length of the inner hole B (6.2), and the end part of the outer end of the inner hole A (6.1) of the sleeve (6) is provided with a chamfer (6.3).

10. The novel rack bar of claim 9, wherein: and an observation hole (9) communicated with the inner ring groove (7) is formed in the outer wall of the sleeve (6).