A semi-fixed type hidden power generation interface of a trailer silent oil machine
By using a semi-fixed power generation interface with a snap-fit mechanism and modular structure, the problems of cumbersome operation and insufficient protection of traditional power generation interfaces are solved, achieving convenient connection, stable power supply and low-noise operation, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU UNITED-CREATION M&E EQUIP CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional power generation interface structures are cumbersome to operate, lack adequate protection, have complex sealing components, cannot flexibly adapt to different devices, have high maintenance costs, and are easily damaged when not in operation.
It adopts a semi-fixed design, combining the first and second locking mechanisms, and uses a return spring to achieve automatic locking and unlocking. The modular structure facilitates maintenance, and the use of rubber seals and labyrinth seals reduces noise and provides protection. The use of rubber materials improves operating comfort.
Simplify operation procedures, reduce the risk of damage, improve equipment compatibility and lifespan, reduce maintenance costs, and enhance the user experience and connection stability.
Smart Images
Figure CN224418091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power generation interface technology, specifically a semi-fixed concealed power generation interface for a trailer-mounted silent generator. Background Technology
[0002] The semi-fixed concealed power generation interface of trailer-mounted silent generators belongs to the field of mobile power generation equipment technology. It is mainly used in scenarios that require convenient and safe power output for trailer-mounted silent generators, such as power supply for outdoor work equipment, emergency power systems, or interface configuration for temporary power devices. Such equipment typically requires the power generation interface to have fast connection, stable power supply, and environmental adaptability to meet the power transmission needs under different operating conditions, while also taking into account ease of operation and equipment protection performance.
[0003] Traditional power generation interface structures generally suffer from cumbersome operation and insufficient protection. Their snap-fit mechanisms often employ multi-step tightening or bolt fixing methods, resulting in time-consuming closure operations requiring specialized tools. The lack of concealment in the design makes the interface susceptible to damage from external impacts during transportation or use. The sealing components and snap-fit structure are usually separate designs, requiring additional sealing materials, which increases assembly complexity and increases the risk of leakage due to seal aging or mismatch. Existing elastic snap-fit components often only have a one-way reset function, requiring two-handed operation to unlock, and the trapezoidal locking block lacks an automatic retraction mechanism, making it prone to structural deformation during transportation due to the protruding parts scratching foreign objects. The interface module and base are often connected by welding or non-removable connections, with fixed port specifications that cannot flexibly adapt to different devices. Later maintenance requires complete replacement, increasing operating costs and exacerbating the probability of physical damage due to the exposed interface when not in operation. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a semi-fixed concealed generator interface for trailer-mounted silent generators. This solves the technical problems of the aforementioned interface modules and bases often using welding or non-removable connections, fixed port specifications that cannot flexibly adapt to different devices, and the need for complete replacement for later maintenance. This not only increases the cost of use but also exacerbates physical damage due to the exposed interface when not in operation.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a semi-fixed concealed generator interface for a trailer-mounted silent generator, comprising: an assembly base, a generator interface, a connection port, and a closed hollow cover. The closed hollow cover is connected to the assembly base via a hinge. The connection port is connected to the assembly base, and the output end of the connection port is connected to the generator interface. A second snap-fit mechanism is mounted on the outside of the closed hollow cover, and a first snap-fit mechanism is mounted on the bottom of the assembly base.
[0008] The first snap-fit mechanism includes a hollow column, a push plate is slidably connected to the bottom of the hollow column, and a first return spring is connected between the hollow column and the push plate.
[0009] The second snap-fit mechanism includes a hollow box, with hollow cylinders connected to both sides of the hollow box. A trapezoidal block is slidably connected inside the hollow cylinder, and a second return spring is connected between the trapezoidal block and the hollow cylinder. The hollow box and the hollow column are respectively connected to the closed hollow cover and the assembly base by bolts.
[0010] Preferably, the mounting base has evenly spaced bolt fixing holes on its exterior, and washers are embedded in the exterior of the bolt fixing holes. The bolt fixing holes are countersunk holes, which, together with the embedded rubber washers, can effectively absorb the vibration energy during the trailer's movement, prevent the bolts from loosening, and avoid abnormal noises caused by direct metal-to-metal contact.
[0011] Preferably, the inner cavity of the closed hollow cover is fitted with a rubber sleeve that fits into the outer surface of the mounting base. The rubber sleeve is made of fluorosilicone material, which has oil-resistant and high-temperature-resistant properties. Its inner wall is designed with annular sealing ribs, forming a labyrinth-like sealing structure with the outer wall of the mounting base, which can block more than 95% of oil and dust from entering the interface.
[0012] Preferably, the front and rear sides of the hollow column are open, and the exterior of the hollow column is adapted to the trapezoidal block. The open structure of the hollow column allows the trapezoidal block to be fully embedded when snapped together. Its inner wall is polished, and the coefficient of friction is reduced to below 0.1, ensuring smooth sliding of the trapezoidal block and preventing jamming after long-term use.
[0013] Preferably, the bottom of the trapezoidal block is designed with a slope, and a rubber sleeve is fitted on the outside of the trapezoidal block. The rubber sleeve on the outside of the trapezoidal block is made of conductive silicone material. While achieving electrical shielding, its surface microporous structure can absorb the impact energy during snapping, reducing the operating noise to below 40dB and achieving a silent effect.
[0014] Preferably, the bottom of the push plate is equipped with a pressure plate, which is a square rubber block. The pressure plate is integrally molded from high-density rubber and has a wave-shaped anti-slip texture on its bottom. When pressing, it can increase the contact area of the fingers. Combined with the elastic deformation characteristics of rubber, it makes the operation force feedback softer and avoids the discomfort caused by hard metal contact.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a semi-fixed concealed generator interface for a trailer-mounted silent generator, which has the following advantages:
[0017] The semi-fixed, concealed generator interface of this trailer-mounted silent generator features a design that simplifies the closing of the hollow cover through the coordinated use of the first and second locking mechanisms. The concealed design reduces the probability of impact during use, and the detachable design facilitates replacement and maintenance. Users can simultaneously complete the mechanical locking and interface sealing by simply rotating the cover. The nested structure of the trapezoidal block and hollow column is automatically locked by a return spring, ensuring connection stability and eliminating the need for additional seals. The elastic component design of the dual locking mechanism optimizes the user experience. The first return spring provides the push plate with elastic reset functionality, allowing for quick separation with a single-handed push when releasing the lock. The second return spring ensures that the trapezoidal block remains retracted in the non-working state, preventing accidental scratches during transportation or use. The modular assembly method, with the hollow box and hollow column bolted to the cover and base respectively, facilitates future maintenance and replacement. This allows the generator interface to be flexibly configured with different connection port specifications to extend the equipment's service life and reduce the risk of physical damage during non-working periods. Attached Figure Description
[0018] Figure 1 This is a front view of the present utility model;
[0019] Figure 2 This is a partial sectional view of the first snap-fit mechanism of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the second snap-fit mechanism of this utility model.
[0021] In the diagram: 1. Assembly base; 11. Bolt fixing hole; 2. Generator interface; 3. Connection port; 4. First snap-fit mechanism; 41. Hollow column; 42. First return spring; 43. Push plate; 44. Pressure plate; 5. Second snap-fit mechanism; 51. Hollow box; 52. Hollow cylinder; 53. Second return spring; 54. Trapezoidal block; 6. Closed hollow cover. Detailed Implementation
[0022] 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.
[0023] This utility model provides a technical solution, please refer to Figure 1 , Figure 2 and Figure 3 A semi-fixed concealed generator interface for a trailer-mounted silent generator includes: an assembly base 1, a generator interface 2, a connection port 3, and a closed hollow cover 6. The closed hollow cover 6 is connected to the assembly base 1 via a hinge. The connection port 3 is connected to the assembly base 1, and the output end of the connection port 3 is connected to the generator interface 2. A second snap-fit mechanism 5 is mounted on the outside of the closed hollow cover 6, and a first snap-fit mechanism 4 is mounted on the bottom of the assembly base 1.
[0024] When the closed hollow cover 6 is closed, the trapezoidal block 54 of the second locking mechanism 5 contacts the inner wall of the hollow column 41 of the first locking mechanism 4 through the inclined surface, pushing the trapezoidal block 54 to retract into the hollow cylinder 52 and compressing the second return spring 53. After the trapezoidal block 54 is fully inserted into the hollow column 41, the second return spring 53 resets and drives the trapezoidal block 54 to extend outward and lock, thus achieving mechanical locking. When it is necessary to open, the push plate 43 is pressed to drive the pressure plate 44 to press down, and the inclined surface of the trapezoidal block 54 is squeezed through the inner wall of the hollow column 41 to retract it and release the locked state.
[0025] The first locking mechanism 4 includes a hollow column 41, a push plate 43 is slidably connected to the bottom of the hollow column 41, and a first return spring 42 is connected between the hollow column 41 and the push plate 43.
[0026] The first return spring 42 is a high-strength compression spring with an optimized elastic coefficient. This design ensures the stability of the push plate 43 during reset and avoids operational difficulties caused by excessive spring force. Meanwhile, the rubber material of the pressure plate 44 enables silent pressing.
[0027] The second snap-fit mechanism 5 includes a hollow box 51, with hollow cylinders 52 connected to both sides of the hollow box 51. A trapezoidal block 54 is slidably connected inside the hollow cylinder 52. A second return spring 53 is connected between the trapezoidal block 54 and the hollow cylinder 52. The hollow box 51 and the hollow column 41 are respectively connected to the closed hollow cover 6 and the assembly base 1 by bolts.
[0028] The trapezoidal block 54 has a 15° bevel angle, which ensures a smooth transition during insertion and prevents accidental disengagement due to an excessively gentle bevel. The second return spring 53 adopts a double helix structure to ensure that the trapezoidal block 54 can maintain a stable locking force after long-term use.
[0029] The mounting base 1 has evenly spaced bolt fixing holes 11 on its exterior. Washers are embedded in the exterior of the bolt fixing holes 11. The bolt fixing holes 11 adopt a countersunk hole design. With the embedded rubber washers, they can effectively absorb the vibration energy during the trailer's movement, prevent the bolts from loosening, and avoid abnormal noise caused by direct metal contact.
[0030] The inner cavity of the closed hollow cover 6 is fitted with a rubber sleeve, which fits the outside of the mounting base 1. The rubber sleeve is made of fluorosilicone material, which has oil resistance and high temperature resistance. Its inner wall is designed with annular sealing ribs, which form a labyrinth-like sealing structure with the outer wall of the mounting base 1, which can block more than 95% of oil and dust from entering the interface.
[0031] The front and rear sides of the hollow column 41 are open, and the exterior of the hollow column 41 is adapted to the trapezoidal block 54. The open structure of the hollow column 41 allows the trapezoidal block 54 to be fully embedded when snapped together. Its inner wall is polished, and the coefficient of friction is reduced to below 0.1, ensuring that the trapezoidal block 54 slides smoothly and preventing jamming after long-term use.
[0032] The bottom of the trapezoidal block 54 is designed with a slope, and the outside of the trapezoidal block 54 is fitted with a rubber sleeve. The rubber sleeve of the trapezoidal block 54 is made of conductive silicone material. While achieving electrical shielding, its surface microporous structure can absorb the impact energy during snapping, reducing the operating noise to below 40dB and achieving a silent effect.
[0033] The bottom of the push plate 43 is equipped with a pressure plate 44, which is a square rubber block. The pressure plate 44 is made of high-density rubber in one piece, and its bottom is designed with a wave-shaped anti-slip texture. When pressing, it can increase the contact area of the fingers. Combined with the elastic deformation characteristics of rubber, it makes the operation force feedback softer and avoids the discomfort caused by hard metal contact.
[0034] This solution first installs the power generation interface 2. The power generation line is connected through the cooperation of the connection port 3 and the power generation interface 2. When the connection port 3 is not in use, the closed hollow cover 6 is rotated. At this time, the hollow box 51 will be fitted onto the outside of the hollow column 41, and the trapezoidal block 54 will be pushed back into place by the hollow column 41. When the hollow box 51 is fully fitted onto the outside of the hollow column 41, the trapezoidal block 54 is inserted into the outer sides of the hollow column 41, completing the snap-fit between the hollow column 41 and the hollow box 51. At the same time, the hollow box 51 and the hollow column 41 are sealed. When the closed hollow cover 6 needs to be released from the assembly base 1, the push plate 43 is pushed up to press out the trapezoidal block 54 in the inner cavity of the hollow column 41, thus completing the snap-fit state of the first snap-fit mechanism 4 and the second snap-fit mechanism 5.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A semi-fixed concealed generator interface for a trailer-mounted silent generator, comprising: The assembly base (1), power generation interface (2), connection port (3) and closed hollow cover (6) are connected to the assembly base (1) by a hinge. The connection port (3) is connected to the assembly base (1), and the output end of the connection port (3) is connected to the power generation interface (2). The closed hollow cover (6) is equipped with a second snap-fit mechanism (5) on the outside, and the assembly base (1) is equipped with a first snap-fit mechanism (4) at the bottom. The first snap-fit mechanism (4) includes a hollow column (41), a push plate (43) is slidably connected to the bottom of the hollow column (41), and a first return spring (42) is connected between the hollow column (41) and the push plate (43). The second snap-fit mechanism (5) includes a hollow box (51), and hollow cylinders (52) are connected to both sides of the hollow box (51). A trapezoidal block (54) is slidably connected inside the hollow cylinder (52). A second return spring (53) is connected between the trapezoidal block (54) and the hollow cylinder (52). The hollow box (51) and the hollow column (41) are respectively connected to the closed hollow cover (6) and the assembly base (1) by bolts.
2. The semi-fixed concealed generator interface for a trailer-mounted silent generator according to claim 1, characterized in that: The mounting base (1) has bolt fixing holes (11) evenly distributed on its exterior, and washers are embedded in the exterior of the bolt fixing holes (11).
3. The semi-fixed concealed generator interface for a trailer-mounted silent generator according to claim 1, characterized in that: The inner cavity of the closed hollow cover (6) is fitted with a rubber sleeve, which fits into the outside of the mounting base (1).
4. The semi-fixed concealed generator interface for a trailer-mounted silent generator according to claim 1, characterized in that: The front and rear sides of the hollow column (41) are open, and the exterior of the hollow column (41) is adapted to the trapezoidal block (54).
5. The semi-fixed concealed generator interface for a trailer-mounted silent generator according to claim 1, characterized in that: The bottom of the trapezoidal block (54) is designed with a slope, and a rubber sleeve is fitted around the outside of the trapezoidal block (54).
6. The semi-fixed concealed generator interface for a trailer-mounted silent generator according to claim 1, characterized in that: The bottom of the push plate (43) is fitted with a pressure plate (44), which is a square rubber block.