A detachable steel purlin quick mounting connector

By using detachable steel purlin quick-installation connectors, and utilizing bolt adjustment and wedge block tight contact, combined with an anti-loosening device, the problems of time-consuming and easy loosening of traditional steel purlin installation are solved, achieving efficient and reliable steel purlin fixing and convenient construction.

CN224452057UActive Publication Date: 2026-07-03CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG
Filing Date
2025-06-06
Publication Date
2026-07-03

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Abstract

This utility model relates to the field of fixed support technology, specifically a detachable quick-installation connector for steel purlins. The utility model includes a mounting base and a steel purlin body. Its features include: a fixing device on one side of the mounting base; the fixing device comprising a connector body; one side of the connector body being fixedly connected to the mounting base; a locking tooth fixedly connected to one side of the connector body; a wedge block slidably connected to one side of the connector body; a support plate fixedly connected to one side of the connector body; an internally threaded ring fixedly connected to one side of the support plate; a bolt connected to the internal thread of the internally threaded ring; and a rubber damping washer fixedly connected to one side of the connector body. This invention solves the problems of traditional steel purlin installation requiring manual handling, positioning, bolt tightening, or welding, with each connection point taking 2-3 minutes, and high-altitude operations being susceptible to weather, visibility, and other factors, resulting in unstable efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of fixed bracket technology, and in particular to a detachable steel purlin quick-installation connector. Background Technology

[0002] The quick-installation connector for steel purlins is a specialized component used in steel structure buildings to enable the rapid and convenient installation and fixing of steel purlins. Its main function is to improve construction efficiency and ensure connection reliability.

[0003] In existing technologies, the installation of traditional steel purlins requires manual handling, positioning, bolt tightening or welding. Each connection point takes 2 to 3 minutes. Moreover, high-altitude operations are easily affected by factors such as weather and visibility, resulting in unstable efficiency. Conventional bolted connections are prone to loosening due to thread wear or preload decay under long-term loads or vibrations. Although welded connections have high strength, they require professional operation, cannot be disassembled, and are difficult to maintain later. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, which requires manual handling, positioning, bolt tightening or welding for the installation of traditional steel purlins, takes 2 to 3 minutes for a single connection point, and is easily affected by weather, visibility and other factors when operating at height, resulting in unstable efficiency. Therefore, a detachable steel purlin quick installation connector is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable steel purlin quick-installation connector, comprising a mounting base and a steel purlin body, wherein a fixing device is provided on one side of the mounting base, the fixing device comprising a connector body, one side of the connector body being fixedly connected to the mounting base, a locking tooth being fixedly connected to one side of the connector body, a wedge block being slidably connected to one side of the connector body, a support plate being fixedly connected to one side of the connector body, and an internal threaded ring being fixedly connected to one side of the support plate, wherein a bolt is threaded into the internal thread of the internal threaded ring.

[0006] The effect achieved by the above components is that the bolt rotates on the internal threaded ring to adjust its position, and the bolt continuously abuts against the wedge block to limit the position of the wedge block.

[0007] Preferably, a rubber damping pad is fixedly connected to one side of the connector body.

[0008] The effect achieved by the above components is that the rubber damping pad is fixed to the main body of the connector.

[0009] Preferably, two round rods are fixedly connected to one side of the wedge block, and the arc surfaces of the two round rods are fixedly connected to the support plate.

[0010] The effect achieved by the above components is that the movement of the wedge block drives the round rod to slide on the support plate.

[0011] Preferably, two rings are fixedly connected to one side of the support plate, and a circular plate is fixedly connected to one end of the circular rod.

[0012] The aforementioned components achieve the following effect: the ring is fixed to the support plate, and the circular plate is fixed to the circular rod.

[0013] Preferably, the arc surface of the round rod is fitted with a spring, and the two ends of the two springs are respectively fixedly connected to the ring and the round plate.

[0014] The effect achieved by the above components is that the circular rod moves, causing the circular plate to move, at which point the spring is in a stretched or retracted state.

[0015] Preferably, one side of the wedge block is provided with an anti-detachment device, the anti-detachment device including an internal threaded collar, the arc surface of the internal threaded collar being fixedly connected to the wedge block, the internal thread of the internal threaded collar being connected to an external threaded sleeve, and one end of the external threaded sleeve being fixedly connected to a rotating block.

[0016] The effect achieved by the above components is that the rotating block drives the external threaded sleeve to screw into or out of the internal threaded collar.

[0017] Preferably, the rotating block has a plurality of anti-slip grooves on its arc surface, and the plurality of anti-slip grooves are evenly distributed on the rotating block.

[0018] The effect achieved by the above components is that the anti-slip groove increases the friction of the rotating block.

[0019] Preferably, a guide ring is fixedly connected inside the external threaded sleeve.

[0020] The effect achieved by the above components is that the movement of the external threaded sleeve drives the movement of the guide ring.

[0021] Preferably, a central rod is slidably connected inside the guide ring, and one end of the central rod is fixedly connected to the wedge block.

[0022] The effect achieved by the above components is that the guide ring and the center rod are properly matched.

[0023] In summary, the beneficial effects of this utility model are as follows:

[0024] In this invention, a fixing device is used to position the steel purlin body in the clamping area between the connector body and the locking teeth when steel purlin installation is required. By rotating the bolts, the wedge block is brought into close contact with the surface of the steel purlin body for clamping and fixing. This fixing device solves the problems of traditional steel purlin installation, which requires manual handling, positioning, bolt tightening or welding, takes 2 to 3 minutes for a single connection point, and is easily affected by weather, visibility and other factors, resulting in unstable efficiency.

[0025] In this utility model, by means of an anti-detachment device, when it is necessary to strengthen the fixation of the steel purlin, holes are pre-drilled on the steel purlin body, and the rotating block drives the external threaded sleeve to screw into the internal threaded collar, so that the rotating block and the steel purlin body come into contact and limit the position. Through the fixing device, the problem that traditional quick-installation connectors for steel purlins can only fix a single steel purlin is solved. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the fixing structure of this utility model;

[0028] Figure 3 This is a cross-sectional structural diagram of the three-dimensional structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the anti-detachment structure of this utility model.

[0030] Legend: 1. Mounting base; 2. Fixing device; 201. Connector body; 202. Support plate; 203. Internal threaded ring; 204. Bolt; 205. Round rod; 206. Wedge block; 207. Clamping tooth; 208. Rubber damping pad; 209. Circular ring; 210. Spring; 211. Circular plate; 3. Anti-detachment device; 31. Internal threaded collar; 32. External threaded sleeve; 33. Guide ring; 34. Center rod; 35. Rotating block; 36. Anti-slip groove; 4. Steel purlin body. Detailed Implementation

[0031] Reference Figure 1 and Figure 3 As shown, this utility model provides a technical solution: a detachable steel purlin quick-installation connector, including a mounting base 1 and a steel purlin body 4. A fixing device 2 is provided on one side of the mounting base 1, and an anti-detachment device 3 is provided on one side of the wedge block 206.

[0032] The following section will explain the specific design and function of the fixing device 2 and the anti-detachment device 3.

[0033] Reference Figure 2As shown in this embodiment: the fixing device 2 includes a connecting body 201, one side of which is fixedly connected to the mounting base 1. A retaining tooth 207 is fixedly connected to one side of the connecting body 201. A wedge block 206 is slidably connected to one side of the connecting body 201. A support plate 202 is fixedly connected to one side of the connecting body 201. An internal threaded ring 203 is fixedly connected to one side of the support plate 202. A bolt 204 is threaded into the internal thread of the internal threaded ring 203. This achieves the effect of adjusting the position of the bolt 204 by rotating it on the internal threaded ring 203, and continuously abutting against the wedge block 206, thus limiting the position of the wedge block 206. A rubber damping pad 208 is fixedly connected to one side of the connecting body 201. This achieves the effect of fixing the rubber damping pad 208 to the connecting body 201. Two round rods 205 are fixedly connected to one side of the wedge block 206, and the arc surfaces of the two round rods 205 are fixedly connected to the support plate 202. This achieves the effect of the wedge block 206 moving to cause the round rod 205 to slide on the support plate 202. Two rings 209 are fixedly connected to one side of the support plate 202, and a round plate 211 is fixedly connected to one end of the round rod 205. This achieves the effect of the rings 209 being fixed to the support plate 202 and the round plate 211 being fixed to the round rod 205. Springs 210 are fitted onto the arc surface of the round rod 205, and the two ends of the two springs 210 are fixedly connected to the rings 209 and the round plate 211, respectively. This achieves the effect of the round rod 205 moving to move the round plate 211, at which time the springs 210 are in a stretched or retracted state.

[0034] Reference Figure 4 As shown in this embodiment: the anti-detachment device 3 includes an internally threaded collar 31, the arc surface of which is fixedly connected to the wedge block 206. An externally threaded sleeve 32 is threadedly connected to the internal thread of the internally threaded collar 31, and a rotating block 35 is fixedly connected to one end of the externally threaded sleeve 32. This achieves the effect of the rotating block 35 rotating to drive the externally threaded sleeve 32 into or out of the internally threaded collar 31. Several anti-slip grooves 36 are evenly distributed on the arc surface of the rotating block 35, increasing the friction of the rotating block 35. A guide ring 33 is fixedly connected inside the externally threaded sleeve 32, allowing the externally threaded sleeve 32 to move and drive the guide ring 33 to move. A central rod 34 is slidably connected inside the guide ring 33, with one end of the central rod 34 fixedly connected to the wedge block 206, achieving a matching effect between the guide ring 33 and the central rod 34.

[0035] Working Principle: When steel purlin installation is required, the operator first securely fixes the mounting base 1 to the main structure, such as the steel frame, using the fixing device 2. Then, the steel purlin body 4 is precisely placed on the connector body 201, positioning it in the clamping area between the connector body 201 and the locking teeth 207. The bolt 204 is manually or with a tool rotated, utilizing the thread transmission principle to rotate the bolt 204 along the internal thread ring 203 towards the wedge block 206. During the movement of the bolt 204, its end continuously presses against the wedge block 206, pushing it towards the steel purlin body 4. During this process, the round rod 205 connected to the wedge block 206 slides on the support plate 202, causing the round plate 211 to move synchronously, compressing the spring 210 to store energy. When the wedge block 206 is in close contact with the surface of the steel purlin body 4, both the wedge block 206 and the connector body 201... In conjunction with the steel purlin body 4, a stable limiting and clamping fixation is formed. At this time, the rubber damping pad 208 set between the connector body 201 and the steel purlin body 4 fully utilizes its elastic deformation characteristics. It not only effectively buffers the installation stress, but also adaptively compensates for the thermal expansion and contraction of the steel purlin body 4 caused by temperature changes, ensuring that the preload remains stable. In addition, the locking teeth 207 installed obliquely on the inclined surface of the connector body 201 can automatically adjust the locking depth according to the actual thickness of the steel purlin body 4 by means of the unique inclined surface structure and the wedge block 206. This achieves rapid and accurate positioning and reliable fixation of steel purlin bodies 4 of different specifications, significantly improving the versatility and convenience of construction. Through the fixing device 2, the problem of traditional steel purlin installation requiring manual handling, positioning, bolt 204 tightening or welding is solved. Each connection point takes 2 to 3 minutes, and high-altitude operation is easily affected by weather, visibility and other factors, resulting in unstable efficiency.

[0036] With the anti-detachment device 3, when it is necessary to strengthen the fixation of the steel purlin, the operator first drills holes in the steel purlin body 4 in advance. After the steel purlin body 4 is fixed, the holes on the steel purlin body 4 are aligned with the internal threaded collar 31 installed on the wedge block 206. This causes the rotating block 35 to drive the external threaded sleeve 32 and the internal threaded collar 203 to be aligned and move towards the internal threaded collar 31, so that the external threaded sleeve 32 is screwed into the internal threaded collar 31. The center rod 34 is pre-assembled with the guide ring 33 to avoid misalignment during the screwing process. After the external threaded sleeve 32 is screwed into the internal threaded collar 31, the rotating block 35 and the steel purlin body 4 come into contact, thereby completing the fixation of the steel purlin body 4. Through the fixing device 2, the problem that traditional steel purlin quick installation connectors can only fix a single steel purlin is solved.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A detachable steel purlin quick mounting connector, comprising a mounting base (1) and a steel purlin body (4), characterized in that: The mounting base (1) is provided with a fixing device (2) on one side. The fixing device (2) includes a connector body (201). One side of the connector body (201) is fixedly connected to the mounting base (1). A locking tooth (207) is fixedly connected to one side of the connector body (201). A wedge block (206) is slidably connected to one side of the connector body (201). A support plate (202) is fixedly connected to one side of the connector body (201). An internal threaded ring (203) is fixedly connected to one side of the support plate (202). A bolt (204) is connected to the internal thread of the internal threaded ring (203).

2. A quick-mounting connector for detachable steel purlin according to claim 1, characterized in that: A rubber damping pad (208) is fixedly connected to one side of the connector body (201).

3. A quick-mounting connector for detachable steel purlin according to claim 1, characterized in that: Two round rods (205) are fixedly connected to one side of the wedge block (206), and the arc surfaces of the two round rods (205) are fixedly connected to the support plate (202).

4. A quick-mounting connector for detachable steel purlin according to claim 3, characterized in that: Two rings (209) are fixedly connected to one side of the support plate (202), and a circular plate (211) is fixedly connected to one end of the circular rod (205).

5. A detachable steel purlin quick-installation connector according to claim 4, characterized in that: The circular rod (205) has a spring (210) fitted on its arc surface, and the two ends of the two springs (210) are fixedly connected to the ring (209) and the circular plate (211) respectively.

6. A quick-mounting connector for detachable steel purlin according to claim 3, characterized in that: One side of the wedge block (206) is provided with an anti-detachment device (3). The anti-detachment device (3) includes an internal threaded collar (31). The arc surface of the internal threaded collar (31) is fixedly connected to the wedge block (206). The internal thread of the internal threaded collar (31) is connected to an external threaded sleeve (32). One end of the external threaded sleeve (32) is fixedly connected to a rotating block (35).

7. A quick-mounting connector for detachable steel purlin according to claim 6, characterized in that: The rotating block (35) has a plurality of anti-slip grooves (36) on its arc surface, and the plurality of anti-slip grooves (36) are evenly distributed on the rotating block (35).

8. A quick-mounting connector for detachable steel purlin according to claim 7, characterized in that: The guide ring (33) is fixedly connected inside the external threaded sleeve (32).

9. A quick-mounting connector for detachable steel purlin according to claim 8, characterized in that: The guide ring (33) is internally slidably connected to a central rod (34), one end of which is fixedly connected to a wedge block (206).