Splicing structure for coal shed rod pieces

Abstract

The utility model relates to the field of steel structure net rack installation, in particular to a splicing structure for coal shed rod pieces. The splicing structure comprises a bolt ball, the bolt ball is provided with a first bolt hole and a second bolt hole, and the second bolt hole is formed in the circumferential outer side of the first bolt hole; the high-strength bolt is matched with the first bolt hole and is suitable for being connected with a rod piece; the sleeve is arranged on the circumferential outer side of the high-strength bolt in a sleeving mode and located between the rod piece and the bolt ball; the sleeve comprises a main cylinder and an auxiliary cylinder capable of extending out of the main cylinder; the main cylinder is fixedly connected with the high-strength bolts; a mounting ring is arranged at the end, away from the main cylinder, of the auxiliary cylinder, and fixing bolts matched with the second bolt holes are arranged on the mounting ring. According to the splicing structure for the coal shed rod piece, the main barrel and the auxiliary barrel are arranged, the auxiliary barrel can stretch out of the main barrel, high-strength bolts can be prevented from being exposed outside, and the stability of the splicing structure and a coal shed is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of steel structure grid installation, and particularly relates to a splicing structure for coal shed members. Background Art

[0002] The existing bolt ball joints are mainly composed of bolts, steel balls, pins (or screws), sleeves, and cone heads or sealing plates. They are suitable for connecting steel pipe members to form a grid structure. The assembly of bolt ball joints does not require welding and is convenient for installation and disassembly. Therefore, they are widely used in the design and construction of steel grid structures.

[0003] The low assembly accuracy of the grid structure composed of the existing bolt ball joints is the most common and prominent problem in the grid installation process. Since the grid members are usually standardized and produced in the same size, there are a large number of finished members with basically the same geometric shape, and the assembly accuracy of the grid cannot be controlled by adjusting the length of the members. At the same time, the length of the sleeve is also fixed, so that when the assembly accuracy is low, the sleeve cannot completely cover the bolt, resulting in some bolts being exposed and vulnerable to moisture erosion, which in turn leads to poor stability of the grid.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] In order to improve or solve the technical problem that the fixed length of the sleeve in the prior art cannot completely cover the bolt, resulting in poor stability of the grid, the utility model provides a splicing structure for coal shed members. The splicing structure includes: a bolt ball, on which a first bolt hole and a second bolt hole are opened, and the second bolt hole is arranged on the circumferential outside of the first bolt hole; a high-strength bolt, which is matched with the first bolt hole and is suitable for connecting with a member; a sleeve, which is sleeved on the circumferential outside of the high-strength bolt and is located between the member and the bolt ball; the sleeve includes a main cylinder and a sub-cylinder that can extend out of the main cylinder; the main cylinder forms a fixed connection with the high-strength bolt; an installation ring is arranged at one end of the sub-cylinder away from the main cylinder, and a fixing bolt matched with the second bolt hole is arranged on the installation ring.

[0006] In a splicing structure for coal shed members of the present utility model, it includes a bolt sphere, high-strength bolts, and sleeves. Among them, the bolt sphere is provided with first bolt holes that match the high-strength bolts for installing the high-strength bolts. One end of the high-strength bolt is arranged in the first bolt hole, and the other end is connected to the member to fix the member on the bolt sphere. The sleeve includes a main cylinder and a sub-cylinder. The main cylinder is fixedly connected to the high-strength bolt, and by rotating the main cylinder, the high-strength bolt is rotated and tightened into the first bolt hole. The sub-cylinder can extend out of the main cylinder, capable of extending the length of the sleeve, so as to extend the length of the sleeve when the main cylinder cannot completely cover the high-strength bolt. One end of the sub-cylinder is provided with a mounting ring, and the mounting ring is provided with fixing bolts that match the second bolt holes. One end of the sub-cylinder is arranged in the main cylinder, and the other end is fixedly connected to the bolt sphere to prevent the sub-cylinder from slipping after assembly. Through the above settings, the splicing structure for coal shed members of the present utility model can avoid the high-strength bolts being exposed outside by setting the main cylinder and the sub-cylinder, and enhance the stability of the splicing structure and the coal shed.

[0007] Further, tracks for limiting the sliding direction of the sub-cylinder are provided in the main cylinder, and sliding grooves that match the tracks are provided in the sub-cylinder.

[0008] Further, internal threads are provided on the inner wall of the main cylinder, and external threads that match the internal threads are provided on the outer wall of the sub-cylinder.

[0009] Further, the main cylinder includes a connecting portion connected to the sub-cylinder and a fixing portion connected to the high-strength bolt; the fixing portion and the high-strength bolt are fixedly connected by connecting bolts.

[0010] Further, it further includes a sealing plate adapted to be fixedly connected to the member; the sealing plate is sleeved on the circumferential outer side of the high-strength bolt, and the nut of the high-strength bolt abuts against the sealing plate.

[0011] Further, a first sealing ring is arranged between the sealing plate and the main cylinder.

[0012] Further, a second sealing ring is arranged between the mounting ring and the bolt sphere.

[0013] In summary, compared with the prior art, the present utility model has the following beneficial effects:

[0014] (1) The sleeve includes a main cylinder and a secondary cylinder. The main cylinder is fixedly connected to the high-strength bolt. By rotating the main cylinder, the high-strength bolt is rotated and tightened into the first bolt hole. The secondary cylinder can extend out of the main cylinder, capable of extending the length of the sleeve, so as to extend the length of the sleeve when the main cylinder cannot fully cover the high-strength bolt. One end of the secondary cylinder is provided with a mounting ring, and the mounting ring is provided with fixing bolts matching the second bolt hole. One end of the secondary cylinder is arranged inside the main cylinder, and the other end is fixedly connected to the bolt ball to prevent the secondary cylinder from slipping after assembly;

[0015] (2) By providing the first sealing ring and the second sealing ring, the first sealing ring can enhance the sealing performance between the sleeve and the sealing plate, and the second sealing ring can enhance the sealing performance between the sleeve and the bolt ball, thereby enhancing the stability of the splicing structure and the coal shed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following describes the preferred embodiments of the present invention with reference to the drawings. In the drawings:

[0017] Figure 1 is a schematic diagram of an embodiment of a splicing structure for a coal shed member of the present invention;

[0018] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0019] LIST OF REFERENCE NUMERALS: 1, bolt ball; 11, first bolt hole; 12, second bolt hole; 2, high-strength bolt; 21, nut; 3, sleeve; 31, main cylinder; 311, connecting part; 312, fixing part; 313, track; 314, fixing bolt; 32, secondary cylinder; 33, mounting ring; 34, connecting bolt; 4, sealing plate; 5, first sealing ring; 6, second sealing ring; 100, member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following describes the preferred embodiments of the present invention with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0021] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "setting", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, indirectly connected through an intermediate medium, or the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] In order to improve or solve the technical problem in the prior art that the length of the sleeve 3 is fixed and cannot completely cover the bolt, resulting in poor stability of the grid structure, the present utility model provides a splicing structure for the coal shed members. The splicing structure includes: a bolt ball 1, on which a first bolt hole 11 and a second bolt hole 12 are provided, and the second bolt hole 12 is arranged on the circumferential outer side of the first bolt hole 11; a high-strength bolt 2, which is matched with the first bolt hole 11 and is suitable for connecting with the member 100; a sleeve 3, which is sleeved on the circumferential outer side of the high-strength bolt 2 and is located between the member 100 and the bolt ball 1; the sleeve 3 includes a main cylinder 31 and a sub-cylinder 32 that can extend out of the main cylinder 31; the main cylinder 31 forms a fixed connection with the high-strength bolt 2; at one end of the sub-cylinder 32 away from the main cylinder 31, a mounting ring 33 is arranged, and a fixing bolt 314 that is matched with the second bolt hole 12 is provided on the mounting ring 33.

[0024] Figure 1 is a schematic diagram of an embodiment of a splicing structure for the coal shed members of the present utility model. As Figure 1 shown, in one or more embodiments, a splicing structure for the coal shed members of the present utility model includes a bolt ball 1, a high-strength bolt 2, a sealing plate 4, and a sleeve 3.

[0025] Figure 2 is Figure 1 an enlarged schematic diagram of part A in Figure 1 and Figure 2 shown, in one or more embodiments, the bolt ball 1 is generally spherical. A plurality of first bolt holes 11 are provided on the bolt ball 1, and the first bolt holes 11 are used for installing the high-strength bolts 2. Further, a second bolt hole 12 is also provided on the bolt ball 1, and the second bolt hole 12 is arranged along the circumference of the first bolt hole 11 and is used for fixing the sleeve 3.

[0026] Continue to refer to Figure 1 and Figure 2, in one or more embodiments, the sealing plate 4 is adapted to be mounted at the end of the rod member 100 by welding or by bolts. The sealing plate 4 is generally circular, and through holes for accommodating high-strength bolts 2 are formed in the sealing plate 4. Further, the high-strength bolt 2 includes a screw rod and a nut 21 disposed at one end of the screw rod. The nut 21 is disposed within the rod member 100, and the screw rod passes through the through hole in the sealing plate 4 and is connected to the bolt ball 1. Specifically, the nut 21 abuts against the sealing plate 4, thereby arranging the high-strength bolt 2 within the rod member 100.

[0027] Continue to refer to Figure 1 and Figure 2 , in one or more embodiments, the sleeve 3 is sleeved on the circumferential outer side of the high-strength bolt 2, and the sleeve 3 is located between the rod member 100 and the bolt ball 1. Specifically, the sleeve 3 includes a main cylinder 31 and a sub-cylinder 32 that can extend out of the main cylinder 31. Among them, the main cylinder 31 forms a fixed connection with the high-strength bolt 2, and the sub-cylinder 32 forms a fixed connection with the bolt ball 1. Further, the main cylinder 31 includes a connecting portion 311 connected to the sub-cylinder 32 and a fixing portion 312 connected to the high-strength bolt 2. Specifically, the fixing portion 312 is generally cylindrical, and its inner diameter matches the diameter of the high-strength bolt 2. The inner diameter of the connecting portion 311 matches the outer diameter of the sub-cylinder 32, so that the connecting portion 311 can extend out of the main cylinder 31. Further, bolt holes are formed in the fixing portion 312, and bolts are arranged in the bolt holes. Corresponding bolt holes are provided on the high-strength bolt 2 corresponding to the bolt holes in the fixing portion 312, so that the fixing portion 312 and the high-strength bolt 2 can form a fixed connection through the connecting bolts 34. By rotating the fixing portion 312, the high-strength bolt 2 is rotated, so that the high-strength bolt 2 can be screwed into the first threaded hole. Further, tracks 313 are arranged on the inner wall of the connecting portion 311, and the tracks 313 extend along the length direction of the sleeve 3. A plurality of tracks 313 are arranged uniformly and at intervals along the circumference of the connecting portion 311. Preferably, two tracks 313 are provided. Sliding grooves matching the tracks 313 are formed on the inner wall of the sub-cylinder 32. In another embodiment, internal threads are formed on the inner wall of the connecting portion 311, and external threads matching the internal threads are formed on the outer wall of the sub-cylinder 32, and the sub-cylinder 32 is extended out of the outer cylinder by screw rotation. Further, an installation ring 33 is provided at one end of the sub-cylinder 32 away from the main cylinder 31, and a fixing bolt 314 matching the second threaded hole is provided on the installation ring 33. Specifically, the installation ring 33 is generally circular, and the installation ring 33 is fixed to the bolt ball 1 by the fixing bolt 314. Further, a first sealing ring 5 is arranged between the sealing plate 4 and the main cylinder 31, and a second sealing ring 6 is arranged between the installation ring 33 and the bolt ball 1. Both the first sealing ring 5 and the second sealing ring 6 are rubber rings, which can enhance the sealing performance between the sealing plate 4 and the main cylinder 31, and between the installation ring 33 and the bolt ball 1, and prevent water vapor from eroding the high-strength bolt 2.

[0028] The working principle of the present utility model is as follows: Insert the high-strength bolt 2 into the sealing plate 4, and fix the sealing plate 4 on the rod member 100; then, sleeved the sleeve 3 on the outside of the high-strength bolt 2, fix the main cylinder 31 and the high-strength bolt 2 through the connecting bolt 34, rotate the main cylinder 31 to make the high-strength bolt 2 cooperate with the bolt ball 1 in place, that is, the nut 21 abuts against the sealing plate 4; then move the auxiliary cylinder 32 to make the mounting ring 33 abut against the bolt ball 1, and then fix the mounting ring 33 on the bolt ball 1 through the fixing bolt 314.

[0029] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A splicing structure for coal shed rods, characterized in that: include: A bolt ball (1), wherein a first bolt hole (11) and a second bolt hole (12) are formed on the bolt ball (1), and the second bolt hole (12) is arranged on the circumferential outer side of the first bolt hole (11); A high-strength bolt (2), matched with the first bolt hole (11) and suitable for being connected to the rod (100); A sleeve (3) is sleeved on the circumferential outer side of the high-strength bolt (2) and is located between the rod (100) and the bolt ball (1); the sleeve (3) comprises a main cylinder (31) and a secondary cylinder (32) that can extend out of the main cylinder (31); the main cylinder (31) is fixedly connected to the high-strength bolt (2); A mounting ring (33) is arranged at one end of the secondary tube (32) away from the main tube (31), and a fixing bolt (314) matching the second bolt hole (12) is provided on the mounting ring (33).

2. A splicing structure for coal shed rods according to claim 1, characterized in that: A track (313) for limiting the sliding direction of the auxiliary tube (32) is provided in the main tube (31), and a sliding groove matching the track (313) is provided in the auxiliary tube (32).

3. A splicing structure for coal shed rods according to claim 1, characterized in that: An internal thread is provided on the inner wall of the main tube (31), and an external thread matching the internal thread is provided on the outer wall of the secondary tube (32).

4. A splicing structure for coal shed rods according to claim 1, characterized in that: The main cylinder (31) comprises a connecting portion (311) connected to the secondary cylinder (32), and a fixing portion (312) connected to the high-strength bolt (2); the fixing portion (312) and the high-strength bolt (2) are fixedly connected via a connecting bolt (34).

5. A splicing structure for coal shed rods according to claim 1, characterized in that: It also includes a sealing plate (4) suitable for forming a fixed connection with the rod (100); the sealing plate (4) is sleeved on the circumferential outer side of the high-strength bolt (2), and the nut (21) of the high-strength bolt (2) abuts against the sealing plate (4).

6. A splicing structure for coal shed rods according to claim 5, characterized in that: A first sealing ring (5) is arranged between the sealing plate (4) and the main cylinder (31).

7. A splicing structure for coal shed rods according to claim 1, characterized in that: A second sealing ring (6) is arranged between the mounting ring (33) and the bolt ball (1).

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