A trampoline guardrail connecting device
By using the fit and fixation of the guardrail support base and the T-joint sleeve, and the arc-shaped groove design of the rubber pad, combined with bolt connection, the problem of unstable connection of trampoline guardrail is solved, achieving the effect of structural stability and quick disassembly and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JINHUAXING METAL
- Filing Date
- 2025-07-13
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional trampoline guardrail connection methods are difficult to disassemble, inconvenient to repair, and lack stability, which affects the safety and user experience of the trampoline.
The guardrail support base is fixed to the tee sleeve, and the rubber pad has an arc groove design. The guardrail is connected by bolts. The friction of the rubber pad prevents the guardrail from shaking, and the bolt connection allows for quick disassembly and maintenance.
It improves the structural stability of the trampoline, prevents the guardrail from wobbling, reduces maintenance costs, and is suitable for installation needs of trampolines with different structures.
Smart Images

Figure CN224442020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sports equipment manufacturing, and in particular to a trampoline guardrail connecting device. Background Technology
[0002] Trampoline is a competitive sport in which athletes use the bounce of a trampoline to perform acrobatic skills in the air. A standard trampoline frame is made of metal, and the surface is made of nylon or other similar materials. Several springs are often installed under the surface for support. During the assembly process, the guardrails and base need to be connected to enhance the safety of the trampoline.
[0003] Traditional trampoline guardrails are typically connected by welding, which makes disassembly difficult and maintenance or replacement inconvenient. While some trampoline guardrails now use detachable structures, these structures lack stability, causing the guardrails to wobble during use and affecting the overall safety of the trampoline. To address this technical problem, this application proposes a trampoline guardrail connection device. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a trampoline guardrail connection device. The guardrail support base is fixed to the three-way sleeve. Combined with the arc-shaped groove design of the rubber pad, the gap can be filled and the friction can be increased, which can effectively prevent the guardrail from shaking, thereby improving the overall structural stability of the trampoline. Moreover, by using bolt connection, no welding is required, which can facilitate quick disassembly and maintenance, thereby reducing maintenance costs.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A trampoline guardrail connecting device is characterized by comprising multiple support rods, a T-shaped sleeve installed at the upper end of each support rod, a trampoline body installed inside the T-shaped sleeve, a guardrail support seat installed at the outer end of each support rod and the T-shaped sleeve, two rubber pads installed inside the guardrail support seat, a guardrail body installed at the outer end of each rubber pad, a guardrail bracket installed on the outer side of the outer wall of the guardrail body, bolt holes being formed at corresponding positions of the guardrail bracket, guardrail body, guardrail support seat, rubber pads, support rods, and T-shaped sleeve, mounting bolts being installed in the bolt holes, and mounting nuts and washers being installed on the outer wall of each mounting bolt.
[0007] Furthermore, the inner end of the guardrail support is fitted with the outer end of the tee sleeve.
[0008] Furthermore, the outer end of the rubber pad is an arc-shaped groove, which fits against the outer wall of the guardrail body.
[0009] Furthermore, the rubber pad is made of a highly elastic and wear-resistant material.
[0010] Furthermore, the main body of the guardrail is made of aluminum alloy.
[0011] Furthermore, both the mounting bolts and mounting nuts are made of stainless steel.
[0012] This utility model has the following beneficial effects:
[0013] 1. In this utility model, the guardrail support base is fixed to the three-way sleeve, and the arc-shaped groove design of the rubber pad can fill the gap and increase the friction, effectively preventing the guardrail from shaking, thereby improving the overall structural stability of the trampoline. Moreover, by using bolt connection, no welding is required, which can facilitate quick disassembly and maintenance, thereby reducing maintenance costs.
[0014] 2. In this utility model, by changing the shape of the guardrail support base, it can be compatible with both straight guardrails and inclined guardrails, thereby meeting the installation requirements of different trampoline structures and improving the applicability of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall connection of a trampoline guardrail connecting device proposed in this utility model;
[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is an exploded view of the connection point of a trampoline guardrail connecting device proposed in this utility model.
[0018] Legend:
[0019] 1. Support rod; 2. Bed frame; 3. Guardrail body; 4. T-joint sleeve; 5. Guardrail support base; 6. Rubber pad; 7. Guardrail bracket; 8. Mounting bolt; 9. Mounting nut; 10. Washer. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Reference Figures 1-3This utility model provides an embodiment of a trampoline guardrail connection device, comprising multiple support rods 1, a three-way sleeve 4 installed at the upper end of the support rods 1, a trampoline body 2 installed inside the three-way sleeve 4, a guardrail support seat 5 installed at the outer end of the support rods 1 and the three-way sleeve 4, two rubber pads 6 installed inside the guardrail support seat 5, a guardrail body 3 installed at the outer end of the rubber pads 6, a guardrail bracket 7 installed on the outer side of the outer wall of the guardrail body 3, bolt holes are provided at corresponding positions of the guardrail bracket 7, guardrail body 3, guardrail support seat 5, rubber pads 6, support rods 1 and three-way sleeve 4, mounting bolts 8 are installed in the bolt holes, mounting nuts 9 and washers 10 are installed on the outer wall of the mounting bolts 8, the inner end of the guardrail support seat 5 is in contact with the outer end of the three-way sleeve 4, and the outer end of the rubber pad 6 is an arc-shaped groove that is in contact with the outer wall of the guardrail body 3.
[0022] Specifically, a three-way sleeve 4 is fixed to the upper end of the support rod 1, and the bed body 2 is inserted into the three-way sleeve 4 to form the basic support structure of the trampoline. The inner end of the guardrail support seat 5 is tightly fitted with the outer end of the three-way sleeve 4 to form a rigid connection base. The guardrail support seat 5 is divided into a straight guardrail support seat 5 and an inclined guardrail support seat 5. The outer end of the inclined guardrail support seat 5 is designed with an inclined surface to facilitate connection with the inclined guardrail. The outer ends of the two rubber pads 6 inside the guardrail support seat 5 are designed with arc-shaped grooves to fit against the outer wall of the guardrail body 3. When the guardrail body 3 is inserted into the support seat, the rubber pads 6 wrap around the guardrail through elastic deformation, using friction to limit its radial movement. The guardrail bracket 7 covers the outer side of the guardrail body 3, and the mounting bolts 8 pass through the guardrail bracket 7, the guardrail body 3, the guardrail support seat 5, and the rubber pads 6. The bolt holes of the support rod 1 and the three-way sleeve 4 are secured by the mounting nuts 9 and washers 10, locking all components together as a whole. When the guardrail is impacted during trampoline use, the force is transmitted through the guardrail body 3 to the rubber pad 6. The high elasticity of the rubber pad 6 causes buffer deformation, absorbing the impact and reducing vibration. The remaining force is transmitted through the guardrail support seat 5 to the three-way sleeve 4 and the support rod 1, and finally distributed to the bed frame 2 structure, avoiding damage from single-point force. The guardrail support seat 5 is fixed to the three-way sleeve 4, and the arc-shaped groove design of the rubber pad 6 can fill gaps and increase friction, effectively preventing the guardrail from shaking, thereby improving the overall structural stability of the trampoline. Moreover, the use of bolted connections eliminates the need for welding, facilitating quick disassembly and maintenance, thus reducing maintenance costs.
[0023] Reference Figure 3 The rubber pad 6 is made of a highly elastic and wear-resistant material, which can improve the cushioning performance and service life. The guardrail body 3 is made of aluminum alloy, which is lightweight, easy to transport and install, and has good corrosion resistance, thus improving the durability of the trampoline. The mounting bolts 8 and mounting nuts 9 are both made of stainless steel, which is rust-proof and durable, and can enhance the stability and durability of the connection.
[0024] Working principle: During installation, first, the bed frame 2 is installed on the upper end of multiple support rods 1 through the T-joint sleeve 4. Then, the guardrail support seat 5 is placed over the support rods 1 and the outer end of the T-joint sleeve 4, and its position is adjusted so that it is completely in contact with the outer end of the T-joint sleeve 4. Inside the guardrail support seat 5, corresponding to the position of the guardrail body 3, two rubber pads 6 are embedded, with the arc-shaped grooves of the rubber pads 6 facing the guardrail body 3. Then, the guardrail body 3 is inserted between the guardrail support seat 5 and the rubber pads 6, ensuring that the outer wall of the guardrail body 3 is tightly in contact with the arc-shaped grooves of the rubber pads 6. Then, the guardrail bracket 7 covers the outer side of the guardrail body 3, aligning the bolt holes on the guardrail bracket 7, guardrail body 3, guardrail support seat 5, rubber pads 6, support rods 1 and T-joint sleeve 4. Finally, the mounting bolts 8 are passed through the bolt holes, and the washers 10 and mounting nuts 9 are inserted in sequence. The bolts are tightened gradually using a diagonal tightening method to ensure that the force on each component is even. Then, the guardrail bodies 3 are installed around the bed frame 2 in sequence, thus completing the installation of the guardrail bodies 3.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A trampoline guardrail connection device, characterised in that, The device includes multiple support rods (1), with a three-way sleeve (4) installed at the upper end of each support rod (1). A bed frame (2) is installed inside the three-way sleeve (4). Guardrail support seats (5) are installed at the outer ends of the support rods (1) and the three-way sleeve (4). Two rubber pads (6) are installed inside the guardrail support seats (5). A guardrail body (3) is installed at the outer end of the rubber pads (6). A guardrail bracket (7) is installed on the outer side of the outer wall of the guardrail body (3). Bolt holes are opened at corresponding positions of the guardrail bracket (7), guardrail body (3), guardrail support seats (5), rubber pads (6), support rods (1), and three-way sleeve (4). Mounting bolts (8) are installed in the bolt holes. Mounting nuts (9) and washers (10) are installed on the outer wall of the mounting bolts (8).
2. A trampoline barrier connection device according to claim 1, characterised in that: The inner end of the guardrail support (5) is fitted with the outer end of the tee sleeve (4).
3. A trampoline safety enclosure attachment as claimed in claim 1, wherein: The outer end of the rubber pad (6) is an arc-shaped groove, which fits against the outer wall of the guardrail body (3).
4. A trampoline safety enclosure attachment as claimed in claim 1, wherein: The rubber pad (6) is made of a highly elastic and wear-resistant material.
5. A trampoline safety enclosure attachment as claimed in claim 1, wherein: The main body (3) of the guardrail is made of aluminum alloy.
6. A trampoline safety enclosure attachment as claimed in claim 1, wherein: The mounting bolts (8) and mounting nuts (9) are both made of stainless steel.