Foldable portable equipment transport trailer

Abstract

This utility model discloses a foldable portable equipment transport trailer, including a base, a handle connected to the front end of the base, and two directional wheels mounted on both sides of the bottom of the base via wheel brackets. The handle, wheel brackets, and directional wheels can all be folded and placed at the bottom of the base. One end of the handle is hinged to the bottom of the base, while the other end is free and placed at the bottom of the base via a hook. A quick-release assembly is provided on the handle, and a fixing member corresponding to the position of the quick-release assembly when the handle is unfolded is provided at the front end of the base. The quick-release assembly includes a locking member sleeved on the handle and movable along the length of the handle. The fixing member has a locking groove for inserting the locking member, and one end of the locking member is connected to an elastic member for maintaining the position of the locking member when inserted into the locking groove. This utility model, by equipping the handle, wheel bracket, and other components with a quick-release assembly, hook, and elastic locking mechanism, achieves rapid switching between the unfolded use and folded storage states of the transport vehicle.

Description

Technical Field

[0001] This utility model relates to a foldable portable equipment transport trailer, belonging to the field of fire-fighting equipment technology. Background Technology

[0002] In disasters and accidents where transportation is disrupted, such as emergency response, earthquake rescue, and firefighting, the rapid transfer of relief supplies and firefighting equipment is crucial to gaining valuable rescue time. Currently, most commonly used rescue carts have fixed wheels and handles mounted directly to the base, lacking folding functionality. This results in two main problems: firstly, rescue carts occupy a large amount of space during transport; secondly, in complex scenarios such as narrow rubble areas formed by collapsed buildings or densely packed obstacles, the fixed-size wheels and handles severely hinder the cart's passage, delaying rescue efforts.

[0003] To address the aforementioned issues, existing technologies attempt to optimize performance through foldable designs, such as the foldable handles, wheels, and outriggers found in some improved fire equipment transport vehicles. However, these solutions still have significant drawbacks: firstly, the folding and unfolding operations are cumbersome, requiring multiple adjustments to the angle or position of components; secondly, foldable components generally employ traditional plug-and-play fixing methods, lacking quick-release devices. This necessitates spending considerable time locating corresponding sockets and aligning fixing positions when unfolding or storing equipment at the rescue site, significantly reducing equipment response efficiency.

[0004] A typical example is the multi-functional portable handcart disclosed in Chinese utility model patent CN204567700U. Although the folding and storage of the directional wheels is achieved through the wheel bracket (one of the directional wheels can move laterally as a load-bearing wheel), its core movable parts such as wheels, handles and support legs still rely on traditional plug-and-play fixing. In the race against time rescue scenarios, this "find hole-alignment-plug-in" operation mode has become a bottleneck restricting the rapid deployment of equipment and is difficult to match the stringent timeliness requirements of emergency rescue. Utility Model Content

[0005] The present invention aims to provide a foldable portable equipment transport trailer that is easy to fold and unfold quickly, addressing the aforementioned technical problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A foldable portable equipment transport trailer includes a base, a guardrail mounted on the base, a handle connected to the front end of the base, and two directional wheels mounted on both sides of the bottom of the base via wheel brackets. The handle, wheel brackets, and directional wheels can all be folded and placed at the bottom of the base. One end of the handle is hinged to the bottom of the base, and the other end is a free end that is placed at the bottom of the base via a hook. The handle is provided with a quick-release assembly. The front end of the base is provided with a fixing member that corresponds to the position of the quick-release assembly when the handle is unfolded. The quick-release assembly includes a locking member sleeved on the handle and movable along the length direction of the handle. The fixing member has a locking groove for the locking member to be inserted. One end of the locking member is connected to an elastic member for maintaining the position of the locking member when it is inserted into the locking groove.

[0007] Therefore, when the handle is folded, the free end of the handle is located in the hook at the bottom of the base. The hook's limiting effect ensures stable storage of the folded handle, effectively preventing it from shifting or loosening during the transportation of fire-fighting equipment, thus ensuring transportation stability. When it is necessary to unfold the handle to push the transport vehicle, simply remove the free end of the handle from the hook, then rotate it around the hinge point to the front end of the base. Once the handle has moved to the preset working position, push the locking member in the quick-release assembly along the length of the handle. This allows the locking member to insert into the locking groove of the fixing member at the front end of the base. At this point, the locking member and the fixing member form a rigid fit, quickly locking the handle in its unfolded position. Simultaneously, the elastic element connected to one end of the locking member continuously applies a preload force towards the fixing member, preventing the locking member from accidentally dislodging from the locking groove. This ensures that the handle remains stably locked during use, preventing operational safety issues caused by a loose handle. When the handle needs to be folded again, simply pull the locking element in the opposite direction to compress the elastic element and simultaneously disengage it from the locking groove. This quickly releases the positional constraint on the handle. Then, fold the handle downwards along the length of the base, allowing the free end to re-engage with the hook, completing the folding and storage process. The entire unfolding and folding process requires no additional tools. Relying on the coordinated design of the quick-release components and hooks, it achieves efficient and convenient operation for switching handle states. This simplifies the usage process while ensuring reliability in all states through structural design, meeting the dual requirements of convenience and stability for equipment transportation tools in fire-fighting scenarios.

[0008] Based on the embodiments of this utility model, further optimizations can be made to this utility model. The optimized technical solutions are as follows: In one specific embodiment, the base is provided with a support member for holding the wheel bracket in a folded or unfolded state.

[0009] In one specific embodiment, the support includes a mounting component fixedly connected to the base and a working component rotatable on the mounting component; the working component includes a rotating shaft with one end extending into the interior of the mounting component, a first torsion spring connected between the interior of the mounting component and the rotating shaft, and a snap-fit ​​plate connected to the other end of the rotating shaft.

[0010] In one specific embodiment, the wheel bracket includes a top plate and side plates disposed on both sides of the top plate for mounting the directional wheel; when the two wheel brackets are in an unfolded state, the snap-fit ​​plate abuts against the lower side of the top plate; when the two wheel brackets are in a folded state, the snap-fit ​​plate abuts against the lower side of the side plate.

[0011] In one specific embodiment, an opening for the handle to pass through is provided below the locking groove. The opening extends through the lower edge of the fixing member and the width of the opening is greater than the diameter of the handle. A plurality of limiting grooves are provided along the circumference of the locking groove, and a limiting block corresponding to the limiting groove is provided along the circumference of the locking member. A plurality of stop members are provided on the side wall of the locking member, and the stop members are located at the end of the locking member closer to the elastic member.

[0012] In one specific embodiment, one end of the elastic member is fixedly connected to the locking member, and the other end is fixedly connected to the handle through a mounting plate fixedly sleeved on the handle.

[0013] In one specific embodiment, a mounting base is provided at the front end of the base, the mounting base including a limiting plate disposed on one side facing the front end of the base; a support leg is hinged to the rear side of the limiting plate, a second torsion spring is connected between the support leg and the limiting plate, so that the support leg always tends to fold towards the base; a locking tongue is hinged to the side wall of the support leg, a third torsion spring is connected between the locking tongue and the support leg, so that the locking tongue always tends to move towards the limiting plate; a slot for the locking tongue to engage is formed on the limiting plate around the rotation axis of the support leg.

[0014] In one specific embodiment, the rear end of the base is provided with two handles, each handle being provided with the quick-release assembly, and the rear end of the base is provided with a fixing member corresponding to the position of the quick-release assembly when the handles are unfolded; the quick-release assembly includes a locking member sleeved on the handles and movable along the length direction of the handles, the fixing member having a locking groove for the locking member to be inserted, and one end of the locking member being connected to an elastic member for maintaining the position of the locking member when the locking member is inserted into the locking groove.

[0015] In one specific embodiment, the base is provided with extension frames on both sides that can extend to both sides of the base.

[0016] In one specific embodiment, the base is equipped with a barrier, and the side of the barrier is provided with a winding device for winding up the fire hose; the front end of the base is provided with a shoulder strap.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1) This utility model's foldable portable equipment transport trailer, by designing handles, wheel supports, and other components as foldable structures, and equipped with quick-release components, hooks, and elastic locking mechanisms, enables the transport vehicle to quickly and easily switch between unfolded use and folded storage states. No additional tools are required; a single person can operate it, greatly improving ease of use, making it particularly suitable for high-efficiency scenarios such as fire emergencies. Simultaneously, the continuous locking force provided by the elastic components and the limiting structures such as hooks ensure the stability of each component in both working and stored states, effectively preventing accidental loosening.

[0018] 2) This utility model's foldable portable equipment transport trailer folds and stores its handles, wheel brackets, and directional wheels at the bottom of the base, allowing the transport vehicle to form a neat and compact whole when not in use, significantly reducing the space it occupies. This feature facilitates centralized storage of the transport vehicle, warehouse management, and carrying and transporting it in confined spaces such as fire trucks, thus improving space utilization.

[0019] 3) The foldable portable equipment transport trailer of this utility model has extendable extension frames on both sides of its base, and a foldable handle with quick-release components at the rear, which enhances the load capacity and applicability of the transport vehicle. The extension frames can be flexibly adjusted to adjust the load-bearing area according to the size of the transported equipment, while the rear handle facilitates pushing or pulling from different directions in different scenarios (such as narrow spaces or when multiple people are needed), improving the transport vehicle's ability to cope with various fire-fighting equipment and complex operating environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the unfolded structure of the foldable portable equipment transport trailer of this utility model; Figure 2 This is a schematic diagram of the folded structure of the foldable portable equipment transport trailer of this utility model; Figure 3 This is a partial enlarged view of the handle, quick-release assembly, and fixing component of this utility model; Figure 4 This is an exploded view of the mounting base and support legs of this utility model; Figure 5 This is a schematic diagram of the unfolded structure of the base and wheel bracket of this utility model; Figure 6 This is an exploded view of the structure of the support component of this utility model.

[0021] In the figure 1-Base; 11-Enclosure; 111-Rolling device; 12-Handle; 13-Split handle; 14-Extended frame; 15-Hook; 16-Shoulder strap; 2-Wheel bracket; 21-Top plate; 22-Side plate; 3, 4-Directional wheels; 5-Quick release assembly; 51-Locking component; 511-Limiting block; 512-Stop component; 52-Elastic component; 53-Mounting plate; 6-Fixing component; 61-Locking groove; 611-Opening; 612-Limiting groove; 7-Support component; 71-Mounting component; 72-Working component; 721-Rotating shaft; 722-Snap-fit ​​plate; 8-Mounting seat; 81-Limiting plate; 811-Snap-fit ​​groove; 82-Outrigger; 83-Second torsion spring; 84-Locking tongue; 841-Third torsion spring; 9-First torsion spring. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0023] like Figure 1 , Figure 2 As shown, the foldable portable equipment transport trailer of this embodiment includes a base 1, a guardrail 11 mounted on the base, a handle 12 connected to the front end of the base 1, a secondary handle 13 connected to the rear end of the base 1, and two directional wheels 3,4 mounted on both sides of the bottom of the base 1 via wheel brackets 2. The handle 12, wheel brackets 2, and directional wheels 3,4 can all be folded and placed at the bottom of the base 1. One end of the handle 12 is hinged to the bottom of the base 1, and the other end is a free end placed at the bottom of the base 1 via a hook 15. A quick-release assembly 5 is provided on the handle 12. A fixing member 6 is provided at the front end of the base 1, corresponding to the position of the quick-release assembly 5 when the handle 12 is unfolded. One end of the secondary handle 13 is hinged to the rear end of the base. When multiple people need to carry the equipment together or when passing through narrow sections, the secondary handle 13 can be unfolded, enhancing the load capacity and applicability of the transport vehicle. The secondary handle 13 is provided with the same quick-release assembly 5 as the handle 12 and a fixing member 6 for fixing the position of the secondary handle 13 when unfolded. The handle 12 and the secondary handle 13 are operated in the same way for unfolding and folding. The free end of the secondary handle 13 can be fixed to the bottom of the base 1 by a strap. The front end of the base 1 is provided with a shoulder strap 16 to facilitate the use of force by firefighters and prevent slippage.

[0024] like Figure 1 , Figure 3As shown, the quick-release assembly 5 includes a locking member 51 sleeved on the handle 12 and movable along the length direction of the handle 12. The fixing member 6 has a locking groove 61 for inserting the locking member 51. One end of the locking member 51 is connected to an elastic member 52 for maintaining the position of the locking member 51 when it is inserted into the locking groove 61. Below the locking groove 61, an opening 611 for the handle 12 to pass through is provided. The opening 611 penetrates the lower edge of the fixing member 6, and its width is greater than the diameter of the handle 12. Two limiting grooves 612 are provided circumferentially along the locking groove 61, and two limiting blocks 511 corresponding to the limiting grooves 612 are provided circumferentially along the locking member 51. Two stop members 512 are provided on the side wall of the locking member 51, with the stop members 512 located at the end of the locking member 51 closest to the elastic member 52. One end of the elastic member 52 is fixedly connected to the locking member 51, and the other end is fixedly connected to the handle 12 through the mounting plate 53 fixedly sleeved on the handle 12.

[0025] Initial folded state: The free end of the handle 12 is engaged in the hook 15 at the bottom of the base 1, and the secondary handle 13 is similarly folded and stored at the rear end of the base. The locking part 51 of the quick-release component 5 is in the unlocked position under the action of the elastic part 52 being fixed to the handle by the mounting plate 53.

[0026] Steps for unfolding handle 12 or extended handle 13: Remove the free end of handle 12 or extended handle 13 from hook 15 and rotate it around the hinge point toward the front or rear end of the base; when the handle is rotated to the preset working position, the width of the opening 611 below the locking groove 61 of the fixing member 6 is greater than the diameter of the handle, making it easy to pass through and enter the fixing area; push the locking member 51 along the length direction of the handle to compress the elastic member 52, so that the locking member 51 is inserted into the locking groove 61, and at the same time, the circumferential limiting block 511 of the locking member is engaged with the circumferential limiting groove 612 of the locking groove to achieve radial limiting; after the locking member is released, the elastic member 52 returns to its original position and applies a pre-tightening force toward the fixing member to the locking member, and the stop member 512 on the side wall restricts the excessive movement of the locking member, thus completing the locking.

[0027] Folding steps: Pull the locking element 51 in the opposite direction along the length of the handle to compress the elastic element 52, so that the limiting block 511 disengages from the limiting groove 612 and the locking element 51 completely exits the locking groove 61; rotate the handle around the hinge point toward the bottom of the base so that the free end re-engages in the hook 15, completing the folding. The operation process of the handle 13 is exactly the same as that of the handle 12.

[0028] The front main handle allows for normal single-person pushing, while the rear auxiliary handle can be deployed when multiple people are carrying heavy equipment or when pulling in the opposite direction is required in narrow sections, significantly improving the load adaptability and space versatility of the transport vehicle. The continuous pre-tension of the elastic element and the radial engagement of the limiting block and limiting groove provide double protection against handle disengagement due to transport vibrations after deployment; the stop element limits the travel of the locking element, preventing component damage and ensuring operational safety.

[0029] like Figure 2 , Figure 5 , Figure 6 As shown, to facilitate the folding and unfolding of the wheels, the base 1 is provided with support members 7 for fixing the wheel bracket 2 in both the folded and unfolded states. Two support members 7 are provided for each wheel, located in the locked position when folded and the locked position when unfolded, respectively. Each support member 7 includes a mounting component 71 fixedly connected to the base 1 and a working component 72 rotatable on the mounting component 71. The working component 72 includes a rotating shaft 721 with one end extending into the mounting component 71. A first torsion spring 9 is connected between the interior of the mounting component 71 and the rotating shaft 721. The other end of the rotating shaft 721 is connected to a snap-fit ​​plate 722. The wheel bracket 2 includes a top plate 21 and side plates 22 disposed on both sides of the top plate 21 for mounting the directional wheels 3 and 4. When both wheel brackets 2 are in the unfolded state, the snap-fit ​​plate 722 abuts against the lower side of the top plate 21; when both wheel brackets 2 are in the folded state, the snap-fit ​​plate 722 abuts against the lower side of the side plates 22.

[0030] Initial folded state: The wheel bracket 2 drives the directional wheel 3 / 4 to fold at the bottom of the base 1. The snap plate 722 of the support member 7, under the action of the first torsion spring 9 connecting the mounting component 71 and the rotating shaft 721, abuts against the lower side of the side plate 22 of the wheel bracket to achieve folding and fixation.

[0031] Unfolding steps: Move the latching plate 722 to disengage the side plate 22 from the latching plate 722. Then, rotate the wheel bracket 2 away from the base. When the wheel bracket rotates to the preset unfolding position where the directional wheel is perpendicular to the bottom surface of the base, the top plate 21 of the wheel bracket rotates to below the latching plate 722. At the same time, move the latching plate 722 to abut against the top plate 21, thereby locking the wheel position.

[0032] Folding steps: Rotate the wheel bracket 2 towards the base until the directional wheel is close to the bottom side plate 22 of the base facing down and the top plate 21 is folded to the side; then move the locking plate 722 of the support member 7 corresponding to the "folding lock position" so that the locking plate rotates around the pivot 721 and tightly abuts against the lower side of the side plate 22 of the wheel bracket, thereby restricting the wobbling of the wheel bracket through rigid abutment and completing the folding lock.

[0033] The wheel can be quickly unlocked and locked by moving the latch plate 722, which facilitates operation when performing tasks.

[0034] like Figure 1 , Figure 2 , Figure 4 As shown, for quick folding and unfolding of the legs, a mounting base 8 is provided at the front end of the base 1. The mounting base 8 includes a limiting plate 81 disposed on one side facing the front end of the base 1. A leg 82 is hinged to the rear side of the limiting plate 81. A second torsion spring 83 connects the leg 82 and the limiting plate 81, so that the leg 82 always tends to fold towards the base 1. A locking tongue 84 is hinged to the side wall of the leg 82. A third torsion spring 841 connects the locking tongue 84 and the leg 82, so that the locking tongue 84 always tends to move towards the limiting plate 81. The limiting plate 81 has a slot 811 for locking the locking tongue 84 to be engaged around the rotation axis of the leg 82. The slot 811 includes a first slot at the nine o'clock position for locking the folded position and a second slot at the six o'clock position for locking the folded position. In this embodiment, two symmetrical support legs are provided on the left and right. In order to prevent the two support legs from interfering when folding, one support leg will be lower than the other support leg when folded. At the same time, the corresponding slot 811 of the limiting plate 81 will also be lowered accordingly.

[0035] Under the action of the second torsion spring 83 connecting the support leg 82 and the limiting plate 81, the support leg 82 fits against the rear side of the mounting seat 8 limiting plate 81 at the front end of the base 1. Under the action of the third torsion spring 841 connecting the locking tongue and the support leg, the locking tongue 84 is engaged in the slot 811 on the limiting plate (in the first slot at the nine o'clock position for locking the folding position).

[0036] Deployment steps: Unlock the outrigger by moving the latch 84, pull the outrigger 82 away from the base, and the outrigger rotates around the hinge point, storing force in the second torsion spring 83; when the outrigger rotates to the preset support position (perpendicular to the ground), the latch 84, under the reset action of the third torsion spring 841, pops out towards the limit plate 81 and locks into the slot 811 on the limit plate (the second slot located at the six o'clock position for locking the folded position), completing the outrigger deployment and locking, and realizing the support for parking the transport vehicle.

[0037] Folding steps: Press the latch 84 towards the side wall of the outrigger to compress the third torsion spring 841, causing the latch to disengage from the slot 811; after unlocking, the outrigger automatically rotates around the hinge point towards the base under the reset action of the second torsion spring 83, fitting into the mounting base 8, thus completing the folding.

[0038] The foldable portable equipment transport trailer of this embodiment automatically locks when the outriggers are pulled during deployment and automatically resets when folded by simply pressing the locking tongue, eliminating the need for manual angle adjustment. This meets the high-efficiency requirements of "rapid parking / transfer of transport vehicles" in firefighting scenarios. After deployment, the rigid engagement of the locking tongue and the slot, combined with the preload of the second torsion spring 83, ensures that the transport vehicle does not slip or tip over when parked, especially when loading heavy firefighting equipment, thus improving parking safety. The combination of torsion spring drive and mechanical engagement eliminates the need for electric or hydraulic components, reducing potential failure points, adapting to complex firefighting environments (such as dust and water stains), and lowering maintenance costs.

[0039] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A foldable portable equipment transport trailer, comprising a base (1), a handle (12) connected to the front end of the base (1), and two directional wheels (3,4) mounted on both sides of the bottom of the base (1) via wheel brackets (2), wherein the handle (12), wheel brackets (2), and directional wheels (3,4) are all foldable and placed at the bottom of the base (1), characterized in that: One end of the handle (12) is hinged to the bottom of the base (1), and the other end is a free end and is placed at the bottom of the base (1) via a hook (15). A quick-release assembly (5) is provided on the handle (12), and a fixing member (6) is provided at the front end of the base (1) when the handle (12) is unfolded, which corresponds to the position of the quick-release assembly (5). The quick-release assembly (5) includes a locking member (51) sleeved on the handle (12) and movable along the length of the handle (12). The fixing member (6) has a locking groove (61) for the locking member (51) to be inserted. One end of the locking member (51) is connected to an elastic member (52) that maintains the position of the locking member (51) when the locking member (51) is inserted into the locking groove (61).

2. The foldable portable equipment transport trailer according to claim 1, characterized in that: The base (1) is provided with a support (7) for holding the wheel bracket (2) in a folded or unfolded state.

3. The foldable portable equipment transport trailer according to claim 2, characterized in that: The support member (7) includes a mounting component (71) fixedly connected to the base (1) and a working component (72) rotatable relative to the mounting component (71); the working component (72) includes a rotating shaft (721) with one end extending into the interior of the mounting component (71), a first torsion spring (9) connecting the interior of the mounting component (71) and the rotating shaft (721), and a snap-fit ​​plate (722) connecting the other end of the rotating shaft (721).

4. The foldable portable equipment transport trailer according to claim 3, characterized in that: The wheel bracket (2) includes a top plate (21) and side plates (22) disposed on both sides of the top plate (21) for mounting the directional wheels (3,4); when the two wheel brackets (2) are in the unfolded state, the snap-fit ​​plate (722) abuts against the lower side of the top plate (21); when the two wheel brackets (2) are in the folded state, the snap-fit ​​plate (722) abuts against the lower side of the side plate (22).

5. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: An opening (611) for the handle (12) to pass through is provided below the locking groove (61). The opening (611) penetrates the lower edge of the fixing member (6), and the width of the opening (611) is greater than the diameter of the handle (12). A plurality of limiting grooves (612) are provided along the circumference of the locking groove (61), and a limiting block (511) corresponding to the limiting groove (612) is provided along the circumference of the locking member (51). A plurality of stop members (512) are provided on the side wall of the locking member (51), and the stop members (512) are located at the end of the locking member (51) near the elastic member (52).

6. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: One end of the elastic element (52) is fixedly connected to the locking element (51), and the other end is fixedly connected to the handle (12) through the mounting plate (53) fixedly sleeved on the handle (12).

7. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: The base (1) has a mounting seat (8) at its front end. The mounting seat (8) includes a limiting plate (81) facing the front end of the base (1). A support leg (82) is hinged to the rear side of the limiting plate (81). A second torsion spring (83) is connected between the support leg (82) and the limiting plate (81), so that the support leg (82) always tends to fold towards the base (1). A locking tongue (84) is hinged to the side wall of the support leg (82). A third torsion spring (841) is connected between the locking tongue (84) and the support leg (82), so that the locking tongue (84) always tends to move towards the limiting plate (81). The limiting plate (81) has a slot (811) for the locking tongue (84) to engage around the rotation axis of the support leg (82).

8. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: The base (1) has two handles (13) at its rear end. The handles (13) are provided with the quick-release assembly (5). The base (1) has a fixing member (6) at its rear end that corresponds to the position of the quick-release assembly (5) when the handles (13) are unfolded. The quick-release assembly (5) includes a locking member (51) sleeved on the handle (13) and movable along the length direction of the handle (13). The fixing member (6) has a locking groove (61) for the insertion of the locking member (51). One end of the locking member (51) is connected to an elastic member (52) for maintaining the position of the locking member (51) when it is inserted into the locking groove (61).

9. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: The base (1) is provided with extension frames (14) on both sides that can extend to both sides of the base (1).

10. The foldable portable equipment transport trailer according to any one of claims 1-4, characterized in that: The base (1) is equipped with a guardrail (11), and the side of the guardrail (11) is provided with a winding device (111) for winding fire hoses; the front end of the base (1) is provided with a shoulder strap (16).

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