Round steel keel connecting sleeve structure

Abstract

The utility model discloses a round steel keel connecting sleeve structure which comprises a first steel keel and a second steel keel, and a sleeve is arranged at the connecting position of the first steel keel and the second steel keel in a sleeved mode. The threaded rod is screwed into the threaded hole, the inclined face on the threaded rod abuts against the inclined face on the sliding block, the sliding block pushes the insertion rods to stretch into the insertion holes, and therefore the steel keel is further connected and fixed, the insertion rods are arranged in the sleeve, the strength of connection between the steel keel and the sleeve is improved, and the service life of the steel keel is prolonged. An arranged annular limiting plate can position the steel joist with the two ends screwed in, inserting holes in the steel joist are aligned with penetrating holes, when a threaded rod is screwed out of a threaded hole, an arranged spring telescopic rod resets to enable an inserting rod to be separated from the inserting holes, dismounting of the steel joist and a sleeve is facilitated, and a threaded groove is formed in the inner side of the sleeve so that friction force can be enhanced; a sealing groove and a sealing ring are arranged, so that the blockage phenomenon caused by foreign matters entering the inner cavity can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a round steel keel connecting sleeve structure. Background Technology

[0002] A round steel keel connecting sleeve is a metal tubular component used to connect and fix steel keels. It is commonly referred to as a "steel keel connecting sleeve" or "steel keel sleeve". It is mainly used in building structures to enhance the stability and load-bearing capacity of the structure.

[0003] Existing round steel keel connection methods mostly use welding or bolt connection, which have problems such as difficulty in disassembly or insufficient connection strength. Therefore, a sleeve connection structure with high efficiency and high connection strength is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a round steel keel connecting sleeve structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a round steel keel connecting sleeve structure, including steel keel one and steel keel two, wherein a sleeve is fitted at the connection between steel keel one and steel keel two.

[0006] The sleeve has threaded holes on both the upper and lower sides. Each of the two threaded holes has an installation groove at one end facing each other. There are four installation grooves in total. Each installation groove has a through hole at the end near the inner wall of the sleeve. Two through holes are formed in each installation groove. A sliding block is slidably connected to each installation groove. A spring telescopic rod is provided at one end of each sliding block and the inner side of each installation groove. Insert rods are fixedly connected to the outer surface of each sliding block and on the same side as the spring telescopic rod. Two insert rods are provided on each sliding block. The insert rods are located on both sides of the spring telescopic rod. Insert holes are provided on the upper and lower sides of the opposite ends of steel keel one and steel keel two. The insert holes are aligned with the through holes. The insert rods pass through the through holes and are inserted into the insert holes.

[0007] In the above technical solution, the threaded rod is screwed into the threaded hole. The inclined surface on the threaded rod abuts against the inclined surface on the sliding block, causing the sliding block to push the insert rod into the insertion hole, thereby further connecting and fixing the steel keel. Multiple insert rods are provided inside the sleeve to improve the strength of the connection between the steel keel and the sleeve. When the threaded rod is screwed out of the threaded hole, the spring telescopic rod resets, causing the insert rod to disengage from the insertion hole, which facilitates the disassembly of the steel keel and the sleeve.

[0008] As a further preferred embodiment of this technical solution, the inner side of the sleeve is provided with a through hole that matches the outer diameter of the round steel keel, and the inner wall of the through hole is provided with a threaded groove.

[0009] In the above technical solution, a threaded groove is provided on the inner side of the sleeve to enhance friction.

[0010] As a further preferred embodiment of this technical solution, an annular limiting plate is fixedly connected to the middle of the inner side of the sleeve, one end of the steel keel abuts against one side of the annular limiting plate, and the other end of the steel keel abuts against the other side of the annular limiting plate.

[0011] In the above technical solution, the annular limiting plate can position the steel keel screwed in at both ends, so that the insertion holes and through holes on the steel keel are aligned.

[0012] As a further preferred embodiment of this technical solution, sealing grooves are provided on the inner sides of both ends of the sleeve, and sealing rings are embedded in the sealing grooves. The sealing rings are in contact with the outer walls of steel keel one and steel keel two, respectively.

[0013] In the above technical solution, the sealing groove and sealing ring can reduce the blockage caused by foreign objects entering the inner cavity.

[0014] As a further preferred embodiment of this technical solution, each of the sliding blocks has an inclined surface on one side, and the inclined surfaces of the sliding blocks at one end of the sleeve face the same direction.

[0015] As a further preferred embodiment of this technical solution, each threaded hole is threaded with a threaded rod, one end of which has an inclined surface, and the inclined surface on the threaded rod abuts against the inclined surface on the sliding block.

[0016] As a further preferred embodiment of this technical solution, the inner side of the threaded rod head is designed in a hexagonal shape, and the threaded rod head is fitted into a circular groove on the outer surface of the sleeve.

[0017] In the above technical solution, the hexagonal shape set on the inner side of the threaded rod head makes it convenient to unscrew the threaded rod with tools later.

[0018] This utility model provides a round steel keel connecting sleeve structure, which has the following beneficial effects:

[0019] (1) This utility model enhances friction by setting a threaded groove on the inner side of the sleeve, and the set sealing groove and sealing ring can reduce the blockage caused by foreign objects entering the inner cavity.

[0020] (2) This utility model uses a threaded rod that is screwed into a threaded hole. The inclined surface on the threaded rod abuts against the inclined surface on the sliding block, which pushes the insert rod into the insertion hole, thereby further connecting and fixing the steel keel. Multiple insert rods are provided in the sleeve to improve the strength of the connection between the steel keel and the sleeve. When the threaded rod is screwed out of the threaded hole, the spring telescopic rod resets, causing the insert rod to disengage from the insertion hole, which facilitates the disassembly of the steel keel and the sleeve. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the sleeve of this utility model;

[0024] Figure 4 This is a schematic diagram of the steel keel and sleeve of this utility model;

[0025] Figure 5 This is an enlarged view of Figure A of this utility model;

[0026] In the diagram: 1. Steel keel one; 2. Steel keel two; 3. Sleeve; 4. Insertion hole; 31. Annular limiting plate; 32. Sealing groove; 33. Sealing ring; 34. Threaded groove; 35. Threaded hole; 36. Mounting groove; 361. Spring telescopic rod; 362. Sliding block; 363. Insert rod; 37. Through hole; 38. Threaded rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] This utility model provides a technical solution: such as Figure 1 and Figure 3 As shown, in this embodiment, a round steel keel connecting sleeve structure includes a steel keel 1 and a steel keel 2. A sleeve 3 is fitted at the connection between the steel keel 1 and the steel keel 2. The inner side of the sleeve 3 has a through hole matching the outer diameter of the round steel keel, and the inner wall of the through hole has a threaded groove 34. An annular limiting plate 31 is fixedly connected to the middle of the inner side of the sleeve 3. The annular limiting plate 31 can position the steel keels screwed in at both ends, so that the insertion hole 4 on the steel keel is aligned with the through hole 37. One end of the steel keel 1 abuts against one side of the annular limiting plate 31, and the other end of the steel keel 2 abuts against the other side of the annular limiting plate 31. Both ends of the sleeve 3 have sealing grooves 32 on their inner sides, and sealing rings 33 are embedded in the sealing grooves 32. The sealing rings 33 contact the outer walls of the steel keel 1 and the steel keel 2 respectively. By setting a threaded groove 34 on the inner side of the sleeve 3, the friction is enhanced. The sealing grooves 32 and sealing rings 33 can reduce the blockage caused by foreign objects entering the inner cavity.

[0029] like Figure 2 and Figure 4As shown, threaded holes 35 are provided on the upper and lower sides of both ends of the sleeve 3. A mounting groove 36 is provided at the opposite end of each of the two threaded holes 35. Four mounting grooves 36 are provided on each side. A through hole 37 is provided at the end of each mounting groove 36 near the inner wall of the sleeve 3. Two through holes 37 are provided within each mounting groove 36. A sliding block 362 is slidably connected within each mounting groove 36. A spring telescopic rod 361 is provided at the inner end of both the sliding block 362 and the mounting groove 36. 2. Insert rods 363 are fixedly connected to the outer surface of the sliding block 362 on the same side as the spring telescopic rod 361. Two insert rods 363 are provided on each sliding block 362. The insert rods 363 are located on both sides of the spring telescopic rod 361. Insert holes 4 are provided on the upper and lower sides of the opposite ends of the steel keel 1 and steel keel 2. The insert holes 4 are aligned with the through holes 37. The insert rods 363 pass through the through holes 37 and are inserted into the insert holes 4. A bevel is provided on one side of the sliding block 362. A sliding sleeve 3 is provided at one end. All blocks 362 have the same inclined surface facing the same direction. Each of the threaded holes 35 is threaded with a threaded rod 38. The inner side of the head of the threaded rod 38 is designed in a hexagonal shape. The head of the threaded rod 38 is fitted into a circular groove on the outer surface of the sleeve 3. The hexagonal shape on the inner side of the head of the threaded rod 38 makes it easy to unscrew the threaded rod 38 with a tool. One end of the threaded rod 38 has an inclined surface. The inclined surface on the threaded rod 38 abuts against the inclined surface on the sliding block 362. The threaded rod 38 is screwed into the threaded hole 35. The inclined surface on the threaded rod 38 abuts against the inclined surface on the sliding block 362, causing the sliding block 362 to push the insertion rod 363 into the insertion hole 4, thereby further connecting and fixing the steel keel. Multiple insertion rods 363 are provided in the sleeve 3 to improve the connection strength between the steel keel and the sleeve 3. When the threaded rod 38 is unscrewed from the threaded hole 35, the spring telescopic rod 361 resets, causing the insertion rod 363 to disengage from the insertion hole 4, which facilitates the disassembly of the steel keel and the sleeve 3.

[0030] This utility model provides a round steel keel connecting sleeve structure, the specific working principle of which is as follows: Steel keel one 1 and steel keel two 2 are screwed into the two ends of sleeve 3 until they abut against the annular limiting plate 31. Then, threaded rod 38 is screwed into threaded hole 35. The inclined surface on threaded rod 38 abuts against the inclined surface on sliding block 362, so that sliding block 362 pushes insertion rod 363 into insertion hole 4, thereby further connecting and fixing the steel keel. When threaded rod 38 is screwed out from threaded hole 35, the spring telescopic rod 361 resets, causing insertion rod 363 to disengage from insertion hole 4.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A round steel joist connection sleeve structure comprising a steel joist one (1) and a steel joist two (2), characterized by: The sleeve (3) is arranged at the joint of the steel keel one (1) and the steel keel two (2). Threaded holes (35) are arranged on the upper and lower sides of both ends of the sleeve (3), mounting grooves (36) are arranged at the ends of the two threaded holes (35) facing each other, four mounting grooves (36) are arranged on the upper and lower sides, a through hole (37) is arranged at one end of the mounting groove (36) close to the inner wall of the sleeve (3), two through holes (37) are arranged in one mounting groove (36), a sliding block (362) is slidably connected in the mounting groove (36), a spring telescopic rod (361) is arranged at one end of the sliding block (362) and the mounting groove (36), a plug rod (363) is fixedly connected to the outer surface of the sliding block (362) and the same side of the spring telescopic rod (361), two plug rods (363) are arranged on one sliding block (362), the plug rods (363) are arranged on both sides of the spring telescopic rod (361), plug holes (4) are arranged on the upper and lower sides of the ends of the steel keel one (1) and the steel keel two (2) facing each other, the plug holes (4) are arranged in alignment with the through holes (37), and the plug rods (363) pass through the through holes (37) and are inserted into the plug holes (4).

2. A round steel joist connection sleeve structure according to claim 1, characterized in that: A through hole matched with the outer diameter of the round steel keel is arranged on the inner side of the sleeve (3), and a threaded groove (34) is arranged on the inner wall of the through hole.

3. A round steel joist connector sleeve structure according to claim 1, characterized in that: An annular limiting plate (31) is fixedly connected to the middle of the inner side of the sleeve (3), one end of the steel keel one (1) abuts one side of the annular limiting plate (31), and the steel keel two (2) abuts the other side of the annular limiting plate (31).

4. A round steel joist connector sleeve structure according to claim 1, characterized by: Sealing grooves (32) are arranged on the inner sides of both ends of the sleeve (3), and sealing rings (33) are embedded in the sealing grooves (32), and the sealing rings (33) are in contact with the outer walls of the steel keel one (1) and the steel keel two (2) respectively.

5. A round steel joist connector sleeve structure according to claim 1, characterized by: An inclined surface is arranged on one side of the sliding block (362), and the inclined surfaces of the sliding blocks (362) arranged at one end of the sleeve (3) face the same direction.

6. A round steel joist connector sleeve structure according to claim 1, characterized by: A threaded rod (38) is threadedly connected in each threaded hole (35), an inclined surface is arranged at one end of the threaded rod (38), and the inclined surfaces on the threaded rod (38) and the sliding block (362) abut each other.

7. A round steel joist connection sleeve structure according to claim 6, characterized in that: The inner side of the head of the threaded rod (38) is designed in a hexagonal shape, and the head of the threaded rod (38) is embedded in the circular groove on the outer surface of the sleeve (3).

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