Reinforcing structure and camping trailer

Abstract

The utility model discloses a reinforcing structure and a camping trailer, which belong to the technical field of trailers, the reinforcing structure comprises a structure main body, the structure main body comprises a main connecting piece and a secondary connecting piece, the secondary connecting piece is hinged in the main connecting piece, a movable short arm is inserted in the main connecting piece, a movable long arm is sleeved outside the secondary connecting piece, and the movable long arm is connected with the main connecting piece. A mounting hole is formed in the secondary connecting piece, a spring is mounted in the mounting hole, the other end of the spring is connected with an elastic bean, a second through hole for the elastic bean to penetrate through is formed in the main connecting piece, and a first through hole for the elastic bean to penetrate through is formed in the movable long arm; compared with a traditional hinge structure, the reinforcing structure and the camping trailer have the advantages that the connecting rigidity and the shaking resistance are remarkably enhanced, and the problem of loose structure mentioned in the background technology is solved.

Description

Technical Field

[0001] This utility model specifically relates to a reinforced structure and a camping trailer, belonging to the field of trailer technology. Background Technology

[0002] Currently, with the increasing popularity of outdoor camping activities, camping trailers have become the preferred equipment for many camping enthusiasts due to their flexible space and convenient mobility. To meet the dual needs of transportation and use, most camping trailers adopt a foldable or unfoldable structure design, folding to reduce volume during transportation and unfolding to expand the internal usable space after arriving at the campsite.

[0003] However, existing camping trailers generally suffer from a significant problem when deployed: a lack of effective reinforcement structures. When deployed, the connections between components rely solely on basic hinges or snap-fit ​​mechanisms, resulting in poor overall structural stability. Under conditions of frequent movement or uneven ground, the trailer is prone to swaying or even shifting, affecting campers' comfort and posing safety hazards. Furthermore, due to the lack of reinforcement, uneven stress at the connection points can lead to loosening and wear over time, reducing the trailer's lifespan and increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a reinforced structure and a camping trailer that occupies less space, is easy to store, has higher overall mechanical strength when unfolded, and is suitable for transporting different objects.

[0005] A reinforcement structure includes a main body, which includes a main connector and a secondary connector. The secondary connector is hinged within the main connector. A movable short arm is inserted into the main connector. A movable long arm is sleeved on the outside of the secondary connector. The secondary connector has a mounting hole. A spring is installed inside the mounting hole. The other end of the spring is connected to a spring bead. The main connector has a second through hole for the spring bead to pass through. The movable long arm has a first through hole for the spring bead to pass through.

[0006] Furthermore, the main connector has a plug groove and a hinge groove. The plug groove extends along its length direction. The movable short arm is plugged into the inside of the plug groove. The secondary connector extends entirely into the hinge groove and is hinged to the main connector via a hinge shaft.

[0007] Furthermore, the secondary connector has a hinge portion and a connecting portion. The connecting portion is fixed to the side wall of the hinge portion and extends radially along the hinge portion. The movable long arm is sleeved outside the connecting portion, and the hinge portion is hinged inside the hinge groove.

[0008] Furthermore, the main connector has an installation groove, the pressing piece is installed inside the installation groove, and in the initial state, the pressing piece has a pressure head installed on it corresponding to the position of the second through hole.

[0009] Furthermore, in the initial state of the spring, the spring bead has a tendency to displace outward from the mounting hole.

[0010] Furthermore, the main body of the structure has two states: unfolded and folded. When the main body of the structure is in the unfolded state, the spring passes through the first perforation and is engaged inside the second perforation. When the main body of the structure is in the folded state, the spring only passes through the first perforation.

[0011] A camping trailer, including a reinforced structure, also includes:

[0012] The vehicle frame body has an unfolded state and a folded state; the vehicle frame body includes a frame structure consisting of two opposing base supports, uprights connected to the top surface of the base supports, and folding fences surrounding the uprights.

[0013] The base has four support brackets hinged to it, and a connecting seat is hinged between two opposite support brackets. Each of the two opposite ends of the support brackets is hinged to a movable seat. A column is installed on the top surface of both the connecting seat and the movable seat. An adjustment seat is connected to the end of the folding fence. The adjustment seat is slidably connected to the column. Both ends of the main structure are hinged to the adjustment seat.

[0014] The movable wheels include four omnidirectional wheels and two directional wheels. The four omnidirectional wheels are respectively installed at the bottom ends of the columns located at the four corners of the main body of the frame, and the directional wheels are installed at the bottom ends of the columns located in the middle of the main body of the frame.

[0015] Furthermore, a locking sleeve is provided at the top of the column, and the locking sleeve is threadedly connected to the top of the column to determine the position of the movable seat and the adjusting seat.

[0016] Furthermore, the trailer frame body is also provided with a handle assembly, which includes two diagonal braces hinged to the rear upright, and a fixed seat is connected between the two diagonal braces, on which a handle is installed.

[0017] Furthermore, one of the connecting seats is provided with a slot, and one of the movable seats is provided with a latching groove. The latching groove and the slot are mounted on the same column, and the latching groove is located above the slot.

[0018] Beneficial effects:

[0019] 1. This utility model utilizes the locking mechanism of the spring bead in the reinforced structure with the first and second through holes, combined with the threaded fastening of the lock sleeve and the auxiliary connection of the slot and buckle groove, to form multiple solid defenses, effectively enhancing the structural strength of the camping trailer after it is unfolded, resisting external shaking and displacement, and significantly improving the safety and comfort of use.

[0020] 2. This utility model features a hinged design for all components of the main frame, combined with a dual-state switching mechanism for a reinforced structure, enabling flexible folding and rapid unfolding of the camping trailer. The synergistic effect of the omnidirectional wheels, directional wheels, and handle assembly facilitates easy movement and turning in different scenarios, saving transportation space and meeting diverse camping needs, thus significantly improving the product's practicality. Attached Figure Description

[0021] Figure 1 A structural diagram of a camping trailer in its unfolded state;

[0022] Figure 2 A schematic diagram of a camping trailer in its folded state;

[0023] Figure 3 A schematic diagram of a camping trailer in its semi-deployed state;

[0024] Figure 4 A structural diagram showing a camping trailer in its unfolded state with an umbrella attached;

[0025] Figure 5 This is a structural diagram of the reinforced structure;

[0026] Figure 6 Left view of the exploded structure for reinforcement;

[0027] Figure 7 Schematic diagram of the exploded structure on the right side for reinforcement;

[0028] Figure 8 A schematic diagram of the structure in its folded state for reinforcement.

[0029] In the diagram: 1. Base; 2. Support; 3. Connecting seat; 4. Movable seat; 5. Column; 6. Casters; 7. Directional casters; 8. Adjustable seat; 9. Folding fence; 10. Diagonal brace; 11. Fixed seat; 12. Handle; 13. Locking sleeve; 14. Main structure; 141. Movable short arm; 142. Movable long arm; 143. Main connector; 144. Secondary connector; 145. Mounting hole; 146. Spring; 147. Spring bead; 148. Mounting groove; 149. Pressing plate; 1410. Press head; 1411. First through hole; 1412. Second through hole; 15. Clip groove; 16. Slot. Detailed Implementation

[0030] 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.

[0031] Please see Figure 5-8 As shown, a reinforcement structure includes a main body 14, which includes a main connector 143 and a secondary connector 144. The secondary connector 144 is hinged within the main connector 143. A movable short arm 141 is inserted into the main connector 143. A movable long arm 142 is sleeved on the outside of the secondary connector 144. A mounting hole 145 is provided on the secondary connector 144. A spring 146 is installed inside the mounting hole 145. The other end of the spring 146 is connected to a spring bead 147. A second through hole 1412 for the spring bead 147 to pass through is provided on the main connector 143. A first through hole 1411 for the spring bead 147 to pass through is provided on the movable long arm 142.

[0032] Specifically, in the reinforced structure, the secondary connector 144 is hinged within the main connector 143 to form a rotating pair. The movable short arm 141 can slide within the insertion slot of the main connector 143 to achieve length adjustment. The spring 146 provides elastic force, causing the spring bead 147 to have an outward displacement tendency. When the movable long arm 142 is sleeved on the secondary connector 144 and rotated to a specific angle, the spring bead 147 passes through the first through hole 1411 and the second through hole 1412 in sequence to achieve a snap-locking. This spring-loaded snap-locking structure provides the function of quick deployment and locking. Compared with the traditional hinged structure, it significantly enhances the connection stiffness and anti-shaking ability, and solves the structural looseness problem mentioned in the background art.

[0033] As a technical optimization of this utility model, the main connector 143 has a plug groove and a hinge groove. The plug groove extends along its length direction, and the movable short arm 141 is inserted into the inside of the plug groove. The secondary connector 144 extends into the hinge groove as a whole and is hinged to the main connector 143 through the hinge shaft.

[0034] Specifically, the hinge slot of the main connector 143 provides rotational space for the secondary connector 144, while the insertion slot constrains the movable short arm 141 to slide axially. This double-slot design enables control of the degrees of freedom of the reinforced structure in two dimensions. The precise slot design improves the assembly accuracy of the components, reduces the connection gap, and enables the reinforced structure to withstand greater lateral loads, thereby enhancing overall stability.

[0035] As a technical optimization of this utility model, the secondary connector 144 has a hinge part and a connecting part. The connecting part is fixed to the side wall of the hinge part and extends radially along the hinge part. The movable long arm 142 is sleeved on the outside of the connecting part, and the hinge part is hinged inside the hinge groove.

[0036] Specifically, the hinge portion of the secondary connector 144 achieves a rotatable connection with the main connector 143, while the radially extending connector provides a sliding guide for the movable long arm 142.

[0037] As a technical optimization of this utility model, the main connector 143 is provided with an installation groove 148, and the pressing piece 149 is installed inside the installation groove 148. In the initial state, the pressing piece 149 is provided with a pressing head 1410 that corresponds to the position of the second through hole 1412.

[0038] Specifically, the pressing plate 149 is installed in the mounting groove 148 of the main connector 143, and its pressing head 1410 is aligned with the second through hole 1412. When it is necessary to unlock, pressing the pressing plate 149 causes the pressing head 1410 to push the spring 147 out of the second through hole 1412. This unlocking mechanism design makes the folding operation of the reinforced structure simpler and can be completed quickly without tools, improving ease of use.

[0039] As a technical optimization of this utility model, in the initial state of the spring 146, the spring bead 147 has a tendency to displace outward from the mounting hole 145.

[0040] Specifically, the preload of the spring 146 keeps the spring bead 147 in a popping-out tendency, ensuring that it can automatically lock into the first perforation 1411 and the second perforation 1412 during the unfolding process. The automatic locking function simplifies the operation process, reduces the number of manual alignment steps, and lowers the difficulty of use, making it especially suitable for rapid assembly in outdoor environments.

[0041] As a technical optimization of this utility model, the main body 14 has two states: unfolded and folded. When the main body 14 is in the unfolded state, the spring 147 passes through the first through hole 1411 and is locked inside the second through hole 1412. When the main body 14 is in the folded state, the spring 147 only passes through the first through hole 1411.

[0042] Specifically, in the unfolded state, the spring 147 passes through the first perforation 1411 and the second perforation 1412 simultaneously to form a rigid connection; when folded, the spring 147 remains only in the first perforation 1411, allowing the movable long arm 142 to rotate relative to the secondary connector 144. This dual-state switching mechanism enables the reinforced structure to freely switch between rigid support and flexible folding, taking into account both stability in use and convenience in transportation.

[0043] Please see Figure 1-8A camping trailer, including a reinforced structure, also includes:

[0044] The frame body has an unfolded state and a folded state; the frame body includes a frame structure consisting of two opposing bases 1, a column 5 connected to the top surface of the base 1, and a folding fence 9 surrounding the column 5.

[0045] Among them, four support brackets 2 are hinged on the base 1, and a connecting seat 3 is hinged between two opposite support brackets 2. Movable seats 4 are hinged to the ends of two separate support brackets 2. Columns 5 are installed on the top surfaces of the connecting seat 3 and the movable seat 4. Adjusting seats 8 are connected to the ends of the folding fence 9. The adjusting seats 8 are slidably connected to the columns 5. Both ends of the main structure 14 are hinged to the adjusting seats 8.

[0046] The movable wheels include four omnidirectional wheels 6 and two fixed wheels 7. The four omnidirectional wheels 6 are respectively installed at the bottom of the uprights 5 located at the four corners of the frame body, and the fixed wheels 7 are installed at the bottom of the uprights 5 located in the middle of the frame body.

[0047] Specifically, the main frame of the camping trailer is formed into a foldable frame structure through components such as the base 1, support 2, and connecting seat 3. The two ends of the main structure 14 are hinged to the adjustment seat 8. When the frame is unfolded, the reinforcement structure unfolds and locks simultaneously, providing lateral support for the entire frame. The frame design with integrated reinforcement structure significantly improves the camping trailer's resistance to deformation, maintaining stability even in complex terrain and strong winds, thus solving the safety hazards mentioned in the background art.

[0048] As a technical optimization of this utility model, a locking sleeve 13 is provided at the top of the column 5. The locking sleeve 13 is threadedly connected to the top of the column 5 to the position of the movable seat 4 and the adjusting seat 8.

[0049] Specifically, the locking sleeve 13 at the top of the column 5 achieves axial displacement through a threaded connection. When the locking sleeve 13 is tightened, its lower end face presses against the movable seat 4 and the adjusting seat 8, restricting their sliding along the column 5.

[0050] As a technical optimization of this utility model, the trailer frame body is also provided with a handle assembly. The handle assembly includes two diagonal braces 10 hinged to the rear upright 5. The two diagonal braces 10 are connected together by a fixed seat 11, and a handle 12 is installed on the fixed seat 11.

[0051] Specifically, the handle assembly is hinged to the column 5 via diagonal bracing rods 10, and the mounting base 11 connects the two diagonal bracing rods 10 to form a stable triangular structure. The operator applies pushing or pulling force by gripping the handle 12 to steer and move the trailer. The triangular stable structure design allows the handle assembly to withstand large operating forces, while the hinged design allows the handle to be folded and stored when not in use, saving space.

[0052] As a technical optimization of this utility model, a slot 16 is installed on one of the connecting seats 3, and a buckle 15 is opened on one of the adjusting seats 8. The buckle 15 and the slot 16 are installed on the same column 5, and the buckle 15 is located above the slot 16.

[0053] Specifically, when the camping trailer frame is fully extended, the buckle slots 15 and slots 16, aligned vertically on the same upright post 5, provide fixed points for installing umbrellas and sunshades. The umbrella or sunshade poles are passed sequentially through the buckle slots 15 and slots 16. The buckle slots 15 limit the upper part of the pole, while the slots 16 secure the lower part, ensuring the poles are vertically and stably mounted on the upright post 5. This fixing method, in conjunction with other reinforcing structures of the frame such as the main structure 14 and locking sleeves 13, leverages the overall stability of the frame to provide reliable support for the umbrellas and sunshades, preventing them from wobbling or tipping over during outdoor use. The buckle slots 15 and slots 16 allow users to easily install umbrellas and sunshades, quickly setting up sun and rain shelters for the camping trailer without additional tools or complicated operations, greatly improving convenience during camping. In strong sunlight or sudden rainfall, it effectively provides campers with a comfortable resting space, enhancing the outdoor camping experience.

[0054] Working principle: The stability and versatility of this camping trailer solution depend on the precise design and coordinated operation of its various structures.

[0055] For stabilization and reinforcement: When the camping trailer is deployed, the main structure 14 plays a crucial role. The movable short arm 141 slides and adjusts its length within the insertion slot of the main connector 143. The secondary connector 144 is hinged within the main connector 143 to allow rotation, and the movable long arm 142 is fitted over the secondary connector 144. The spring 146 provides a tendency for the spring bead 147 to move outward. When the reinforcement structure is deployed to the appropriate position, the spring bead 147 passes through the first through hole 1411 of the movable long arm 142 and the second through hole 1412 of the main connector 143 and engages, locking the reinforcement structure and providing stable support for the frame body. At the same time, the locking sleeve 13 at the top of the column 5 presses the movable seat 4 and the adjusting seat 8 through a threaded connection. The slot 16 on the connecting seat 3 and the buckle slot 15 on the adjusting seat 8 can be inserted into the connector for further fixation. The combined effect of multiple reinforcement structures tightly connects the various components of the frame body, effectively resisting shaking and displacement caused by external factors.

[0056] In terms of flexibility and versatility: The main frame adopts a foldable design, with components such as the base 1, support 2, connecting seat 3, and movable seat 4 hinged together for flexible rotation and folding. The main structure 14 also has both unfolded and folded states. When folded, the spring 147 only protrudes through the first through hole 1411, and each component can rotate and retract freely. During transportation, the main frame and reinforcement structure are folded to reduce volume; upon arrival at the campsite, the main frame is unfolded first, the positions of each component are adjusted, and then the reinforcement structure is quickly unfolded and locked in place by the spring 147. In addition, the four corner casters 6 and the central directional wheel 7 facilitate the movement of the trailer on different terrains. The handle assembly hinged to the rear upright 5, through the diagonal brace 10, fixed seat 11, and handle 12, allows users to easily push or pull the trailer, achieving flexible steering and position adjustment to meet diverse usage needs.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforced structure, comprising a main structural body (14), characterized in that: The main structure (14) includes a main connector (143) and a secondary connector (144). The secondary connector (144) is hinged inside the main connector (143). A movable short arm (141) is inserted inside the main connector (143). A movable long arm (142) is sleeved on the outside of the secondary connector (144). An installation hole (145) is provided on the secondary connector (144). A spring (146) is installed inside the installation hole (145). A spring bead (147) is connected to the other end of the spring (146). A second through hole (1412) for the spring bead (147) to pass through is provided on the main connector (143). A first through hole (1411) for the spring bead (147) to pass through is provided on the movable long arm (142).

2. The reinforced structure as described in claim 1, characterized in that: The main connector (143) has a plug groove and a hinge groove. The plug groove extends along its length direction. The movable short arm (141) is plugged into the inside of the plug groove. The secondary connector (144) extends entirely into the hinge groove and is hinged to the main connector (143) through a hinge shaft.

3. The reinforced structure as described in claim 2, characterized in that: The secondary connector (144) has a hinge portion and a connecting portion. The connecting portion is fixed to the side wall of the hinge portion and extends radially along the hinge portion. The movable long arm (142) is sleeved on the outside of the connecting portion. The hinge portion is hinged inside the hinge groove.

4. The reinforced structure as described in claim 1, characterized in that: The main connector (143) has an installation groove (148), and a pressing piece (149) is installed inside the installation groove (148). In the initial state, the pressing piece (149) has a pressing head (1410) installed on it, which corresponds to the position of the second through hole (1412).

5. The reinforced structure as described in claim 1, characterized in that: In the initial state of the spring (146), the spring bead (147) has a tendency to displace outward from the mounting hole (145).

6. The reinforced structure as described in claim 5, characterized in that: The main body (14) has two states: unfolded and folded. When the main body (14) is in the unfolded state, the spring (147) passes through the first perforation (1411) and is locked inside the second perforation (1412). When the main body (14) is in the folded state, the spring (147) only passes through the first perforation (1411).

7. A camping trailer, comprising the reinforcement structure according to any one of claims 1-6, characterized in that: Also includes: The frame body has an unfolded state and a folded state; the frame body includes a frame structure consisting of two opposing bases (1), a column (5) connected to the top surface of the bases (1), and a folding fence (9) surrounding the column (5); Among them, four support brackets (2) are hinged on the base (1), and a connecting seat (3) is hinged between two opposite support brackets (2). Movable seats (4) are hinged to the ends of the two opposite support brackets (2). Columns (5) are installed on the top surfaces of the connecting seat (3) and the movable seat (4). An adjusting seat (8) is connected to the end of the folding fence (9). The adjusting seat (8) is slidably connected to the column (5). Both ends of the main structure (14) are hinged to the adjusting seat (8). The movable wheels include four omnidirectional wheels (6) and two directional wheels (7). The four omnidirectional wheels (6) are respectively installed at the bottom of the uprights (5) located at the four corners of the frame body, and the directional wheels (7) are installed at the bottom of the uprights (5) located in the middle of the frame body.

8. The camping trailer as described in claim 7, characterized in that: The top of the column (5) is provided with a locking sleeve (13), which is threaded to the top of the column (5) to position the movable seat (4) and the adjusting seat (8).

9. The camping trailer as described in claim 7, characterized in that: The trailer frame body is also provided with a handle assembly, which includes two diagonal braces (10) hinged to the rear upright (5), and a fixed seat (11) is connected between the two diagonal braces (10), and a handle (12) is installed on the fixed seat (11).

10. The camping trailer as described in claim 7, characterized in that: One of the connecting seats (3) is equipped with a slot (16), and one of the adjusting seats (8) is equipped with a buckle (15). The buckle (15) and the slot (16) are installed on the same column (5), and the buckle (15) is located on the slot (16).

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