Protective structure of diesel generator
By using a synchronous limit structure driven by a hinged telescopic cylinder and a servo motor, the stability problem of the diesel generator protection structure during the switching between transport and working states is solved, achieving all-round limit protection and convenient operation, and improving the protection stability and usage efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI LEES POWER CO LTD
- Filing Date
- 2026-04-09
- Publication Date
- 2026-05-12
AI Technical Summary
The existing diesel generator protection structure is inconvenient during transportation and operation, and the limit protection is not comprehensive, resulting in insufficient equipment stability, cumbersome operation, and difficulty in meeting the requirements for high-efficiency protection.
The system uses a hinged telescopic cylinder to drive the Y-shaped swing arm and chassis movement, combined with a servo motor-driven synchronous limit structure to achieve all-round limit protection and stable support switching for the diesel generator, while buffer springs reduce collision damage.
It enables convenient transportation and stable support switching of diesel generators, ensuring the structural stability and operational efficiency of the equipment in different scenarios and reducing the risk of equipment damage.
Smart Images

Figure CN122014974A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of diesel generator technology, and more particularly to a protective structure for a diesel generator. Background Technology
[0002] Currently, diesel generator protective structures are mostly simple frame-type protections, primarily providing basic dust and collision protection. Some structures are equipped with movable parts for easy transport, but they generally lack stable switching mechanisms between transport and operating states. Existing technologies often use limit protection that is fixed in one direction, resulting in poor linkage. Furthermore, the simple design of the buffer structure makes it difficult to balance transport convenience with operational stability, and overall adaptability needs improvement.
[0003] Existing technologies have significant drawbacks: inconvenient switching between transport and support, lack of dedicated linkage mechanisms, and easy slippage during operation; incomplete limit protection, with top and side limits unable to be synchronized, leading to rigid collision damage to the equipment; cumbersome operation, lack of automatic synchronous drive structure, insufficient overall protection and stability, and inability to meet the requirements for high-efficiency protection. Summary of the Invention
[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a protective structure for diesel generators.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0006] A protective structure for a diesel generator includes a base plate, on which the diesel generator body is placed. Rectangular notches are provided at the four corners of the base plate. A hinged telescopic cylinder and a Y-shaped swing arm are respectively hinged to the side wall of each rectangular notch. The telescopic rod end of the hinged telescopic cylinder and the bottom end of the Y-shaped swing arm, which are located at the same location, are hinged to a chassis.
[0007] Two pairs of L-shaped plates are fixedly installed on the front and rear sides of the top of the base plate. A hollow sleeve is fixedly inserted through the top of each L-shaped plate, and a fixed sliding cylinder is slidably inserted inside each hollow sleeve.
[0008] Each of the fixed sliding cylinders is fixedly inserted with a through-distributed fixed shaft. Each fixed shaft is fixedly provided with a first swing arm at its top end. Each first swing arm is provided with a first pressure plate at its outer end. Each first pressure plate rests against the top surface of the diesel generator body.
[0009] Each L-shaped plate has a pair of L-shaped connecting plates fixedly installed on both sides. Each pair of L-shaped connecting plates has a rack slidably inserted into its outer end. Each rack has a second swing arm fixedly installed at its outer end. Each second swing arm has a second pressure plate installed at its outer end. Each second pressure plate abuts against the side of the diesel generator body.
[0010] A widened gear is fixedly sleeved at the bottom end of the fixed shaft. The widened gear meshes with the rack, and the teeth of the widened gear and the teeth of the rack slide vertically together.
[0011] Preferably, two pairs of wheel axles are rotatably inserted on the front and rear sides of the top of the base plate, and a load-bearing wheel is fixedly sleeved on the outer end of each wheel axle.
[0012] Preferably, a first U-shaped seat is fixedly provided on the top of the side wall of the rectangular notch, and a pair of second U-shaped seats are fixedly provided on the bottom of the side wall of the rectangular notch. The cylinder body of the hinged telescopic cylinder is hingedly installed in the first U-shaped seat, and the two ends of the opening of the Y-shaped swing arm are hingedly installed in the pair of second U-shaped seats.
[0013] Preferably, a triangular lug is fixedly provided at the bottom end of the Y-shaped swing arm, the telescopic rod end of the hinged telescopic cylinder is hingedly installed on the top of the triangular lug, a single lug is fixedly provided on the top surface of the chassis, and the top of the single lug is hingedly installed on the bottom of the triangular lug.
[0014] Preferably, a first spring is fixedly installed between the middle of the bottom surface of the Y-shaped swing arm and the top surface of the chassis, and a pair of limiting rods are fixedly installed in the middle of the cylinder body of the articulated telescopic cylinder, with the bottom ends of the pair of limiting rods facing downward toward the chassis.
[0015] Preferably, the outer surface of the hollow sleeve is provided with an oblique sliding hole, and the outer surface of the fixed slide cylinder is fixedly provided with a limiting pin, the outer end of which is slidably inserted into the oblique sliding hole.
[0016] Preferably, a retaining ring is fixedly sleeved on the lower middle part of the fixed shaft, and a second spring is sleeved on the lower middle part of the fixed shaft, with the upper and lower ends of the second spring abutting against the hollow sleeve and the retaining ring, respectively.
[0017] Preferably, a pair of fixing plates are fixedly provided on the front and rear sides of the top of the base plate, a servo motor is fixedly installed on the top of the fixing plates, a double-headed connecting rod is fixedly provided at the end of the motor shaft of the servo motor, a pair of hinged connecting rods are hinged at both ends of the double-headed connecting rod, and the outer end of each hinged connecting rod is movably hinged to the rack on the same side.
[0018] Preferably, a first bolt is threaded into the outer end of the first swing arm, the threaded end of the first bolt is fixedly connected to the first pressure plate, and a buffer spring is sleeved on the threaded end of the first bolt.
[0019] Preferably, a second bolt is threaded into the outer end of the second swing arm, the threaded end of the second bolt is fixedly connected to the second pressure plate, and a buffer spring is sleeved on the threaded end of the second bolt.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] 1. In this invention, there is a function of convenient transportation and stable support switching. The articulated telescopic cylinder drives the Y-shaped swing arm and chassis to move. When folded, the load-bearing wheels touch the ground for easy movement. When unfolded, the chassis fits the ground to prevent slipping. It is suitable for different usage scenarios and ensures the structural stability during transportation and operation.
[0022] 2. In this invention, all-round limiting protection of diesel generator is achieved. The top and side pressure plates are linked synchronously and, together with the buffer spring, reduce rigid collisions, avoid shaking and lateral displacement during equipment transportation and operation, effectively protect the diesel generator body and reduce the risk of damage.
[0023] In summary, the present invention features strong overall structural linkage and convenient operation. The servo motor drive enables synchronous limit switching, and the components work closely together, ensuring both the integrity and stability of the protection and improving operational efficiency, thus meeting the protection and usage requirements of diesel generators. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention (excluding the diesel generator body);
[0027] Figure 3 This is a schematic diagram of the base plate and four chassis structure of the present invention;
[0028] Figure 4 For the present invention Figure 3 Explosion-proof diagram of the structure;
[0029] Figure 5 This is a schematic diagram of the base plate and two pairs of L-shaped plates of the present invention;
[0030] Figure 6 For the present invention Figure 5 Explosion-proof diagram of the structure;
[0031] In the diagram, the following are the serial numbers: 100, base plate; 101, axle; 102, load-bearing wheel; 103, diesel generator body; 200, first U-shaped seat; 201, articulated telescopic cylinder; 202, limit rod; 203, second U-shaped seat; 204, Y-shaped swing arm; 205, triangular lug seat; 206, chassis; 207, first spring; 300, L-shaped plate; 301, hollow sleeve; 302, oblique sliding hole; 303. Fixed slide cylinder; 304. Limiting pin; 305. Fixed shaft; 306. First swing arm; 307. First pressure plate; 308. Retaining ring; 309. Second spring; 310. Widened gear; 400. L-shaped connecting plate; 401. Rack; 402. Second swing arm; 403. Second pressure plate; 404. Fixed plate; 405. Servo motor; 406. Double-headed connecting rod; 407. Hinge connecting rod. Detailed Implementation
[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0033] Example: This example provides a protective structure for a diesel generator. See [link / reference]. Figures 1 to 6 Specifically, the base plate 100 is used as the foundation support for the entire protective structure. The base plate 100 is used to stably support the diesel generator body 103, provide an installation reference for each component, integrate the components to form a unified protective whole, and ensure structural stability. Two pairs of wheel axles 101 are rotatably inserted on the front and rear sides of the top of the base plate 100. Each wheel axle 101 has a load-bearing wheel 102 fixedly fitted on its outer end. Rectangular notches are opened at the four corners of the base plate 100. A hinged telescopic cylinder 201 and a Y-shaped swing arm 204 are hinged on the side wall of each rectangular notch. The telescopic rod end of the hinged telescopic cylinder 201 and the bottom end of the Y-shaped swing arm 204, which are located at the same location, are hinged together to a chassis 206.
[0034] Two pairs of L-shaped plates 300 are fixedly installed on the front and rear sides of the top of the base plate 100. Each L-shaped plate 300 has a hollow sleeve 301 that is inserted through it at the top. Each hollow sleeve 301 has a fixed sliding cylinder 303 that is slidably inserted inside it.
[0035] Each fixed slide cylinder 303 has a fixed shaft 305 that is fixedly inserted through it. Each fixed shaft 305 has a first swing arm 306 fixedly installed at its top end. Each first swing arm 306 has a first pressure plate 307 installed at its outer end. Each first pressure plate 307 abuts against the top surface of the diesel generator body 103. The outer end of the first swing arm 306 is threaded with a first bolt. The threaded end of the first bolt is fixedly connected to the first pressure plate 307. The threaded end of the first bolt is fitted with a buffer spring. The first pressure plate 307 abuts against the top of the diesel generator body 103 under the action of the fixed shaft 305 and the first swing arm 306, so as to achieve top limit protection. In conjunction with the buffer spring, it reduces rigid collision damage and protects the equipment.
[0036] Each L-shaped plate 300 has a pair of L-shaped connecting plates 400 fixedly installed on both sides. Each pair of L-shaped connecting plates 400 has a rack 401 slidably inserted into its outer end. Each rack 401 has a second swing arm 402 fixedly installed at its outer end. Each second swing arm 402 has a second pressure plate 403 installed at its outer end. Each second pressure plate 403 abuts against the side of the diesel generator body 103. The outer end of the second swing arm 402 is threaded with a second bolt. The threaded end of the second bolt is fixedly connected to the second pressure plate 403. The threaded end of the second bolt is fitted with a buffer spring 2. The second pressure plate 403 moves with the rack 401 and the second swing arm 402 to abut against the side of the diesel generator body 103, thereby achieving side limit and preventing lateral displacement of the equipment during movement or operation. The buffer spring 2 plays an auxiliary buffer protection role.
[0037] A widened gear 310 is fixedly sleeved at the bottom end of the fixed shaft 305. The widened gear 310 meshes with the rack 401, and the teeth of the widened gear 310 and the teeth of the rack 401 are vertically slidingly engaged. The meshing and vertical sliding engagement of the widened gear 310 and the rack 401 converts the sliding of the rack 401 into the rotation of the fixed shaft 305, realizing the synchronous linkage of the top and side limiting structures, and improving the limiting efficiency and integrity.
[0038] In the specific implementation process, such as Figure 3 and Figure 4 As shown, a first U-shaped seat 200 is fixedly installed on the top of the side wall of the rectangular notch, and a pair of second U-shaped seats 203 are fixedly installed on the bottom of the side wall of the rectangular notch. The cylinder body of the hinged telescopic cylinder 201 is hingedly installed in the first U-shaped seat 200, and the two ends of the opening of the Y-shaped swing arm 204 are hingedly installed in the pair of second U-shaped seats 203.
[0039] A triangular ear seat 205 is fixedly installed at the bottom end of the Y-shaped swing arm 204. The end of the telescopic rod of the hinge telescopic cylinder 201 is hinged to the top of the triangular ear seat 205. A single ear seat is fixedly installed on the top surface of the chassis 206. The top of the single ear seat is hinged to the bottom of the triangular ear seat 205. The hinge telescopic cylinder 201 serves as the power source for the unfolding and folding of the chassis 206. The telescopic rod extends and retracts to drive the Y-shaped swing arm 204 to swing, thereby realizing the switching between the device's transport and working states and ensuring the applicability of the device in different scenarios.
[0040] A first spring 207 is fixedly installed between the bottom center of the Y-shaped swing arm 204 and the top surface of the chassis 206. A pair of limiting rods 202 are fixedly installed in the middle of the cylinder body of the hinged telescopic cylinder 201, and the bottom ends of the pair of limiting rods 202 are set downward toward the chassis 206. When the chassis 206 is folded, it cooperates with the load-bearing wheels 102 to facilitate the transportation of the device. When unfolded, it is in contact with the ground to achieve stable support for the device, preventing slippage when the diesel generator is working and ensuring smooth operation.
[0041] It should be noted that: such as Figure 5 and Figure 6 As shown, the outer surface of the hollow sleeve 301 is provided with an oblique sliding hole 302, and the outer surface of the fixed slide cylinder 303 is fixedly provided with a limiting pin 304. The outer end of the limiting pin 304 is slidably inserted into the oblique sliding hole 302. The lower middle part of the fixed shaft 305 is fixedly fitted with a retaining ring 308, and the lower middle part of the fixed shaft 305 is fitted with a second spring 309. The upper and lower ends of the second spring 309 respectively abut against the hollow sleeve 301 and the retaining ring 308. The servo motor 405 drives the rack 401 to slide by driving the double-headed connecting rod 406 and the hinged connecting rod 407, so as to realize the subsequent synchronous limiting of the top and the side, and improve the convenience and synchronization of the limiting operation.
[0042] A pair of fixing plates 404 are fixedly installed on the front and rear sides of the top of the base plate 100. A servo motor 405 is fixedly installed on the top of the fixing plate 404. A double-headed connecting rod 406 is fixedly installed at the end of the motor shaft of the servo motor 405. A pair of hinged connecting rods 407 are hinged at both ends of the double-headed connecting rod 406. The outer end of each hinged connecting rod 407 is movably hinged to the rack 401 on the same side.
[0043] The working principle of this embodiment is as follows: First, the diesel generator body 103 is placed stably on the top surface of the base plate 100, and the servo motor 405 is started. Under the driving action of the servo motor 405, its motor shaft drives the double-headed connecting rod 406 to rotate synchronously. The double-headed connecting rod 406 drives the rack 401 to slide inward along the corresponding pair of L-shaped connecting plates 400 through the hinged connecting rod 407.
[0044] As the rack 401 slides, it simultaneously drives the second swing arm 402 and the second pressure plate 403 to move towards one side of the diesel generator body 103 until each second pressure plate 403 is tightly against the side of the diesel generator body 103, thereby limiting and protecting the side of the diesel generator body 103 and preventing it from shifting laterally during movement or operation. At the same time, the buffer spring 2 sleeved on the threaded end of the second bolt can play a buffering and shock-absorbing role, reducing the damage to the diesel generator body 103 caused by rigid collisions during side limiting.
[0045] During the process of the rack 401 sliding inward, since the rack 401 is meshed with the widened gear 310 and the teeth of the widened gear 310 and the teeth of the rack 401 are in vertical sliding engagement, the rack 401 will mesh and drive the widened gear 310 to rotate synchronously, thereby driving the fixed shaft 305 and the fixed slide cylinder 303 to rotate.
[0046] At this time, the limiting pin 304 will slide along the inclined sliding hole 302. Under the guidance of the inclined sliding hole 302, the fixed sliding cylinder 303 will slide down synchronously and drive the first swing arm 306 to rotate down, eventually driving the first pressure plate 307 to move down until the first pressure plate 307 is tightly against the top surface of the diesel generator body 103, thereby achieving limiting protection of the top of the diesel generator body 103. Together with the second pressure plate 403 on the side, it forms an all-round limiting fixation. The buffer spring sleeved on the threaded end of the first bolt can buffer the pressure when the top is limited, further protecting the diesel generator body 103.
[0047] Meanwhile, the second spring 309, which is sleeved on the lower part of the fixed shaft 305, abuts against the hollow sleeve 301 and the retaining ring 308 at its upper and lower ends, respectively. It can play an auxiliary buffering and reset role for the sliding of the fixed shaft 305, and improve the stability of the limit protection.
[0048] When the device is in its initial state, the chassis 206 is in an upward flipped and folded state, a pair of limit rods 202 abut against the chassis 206, and the load-bearing wheels 102 are in a grounded state, which makes it easy to push the base plate 100 and the diesel generator body 103 to move them to the designated working position. This achieves convenient transportation, while the limit protection structure can prevent the diesel generator body 103 from shaking or colliding during transportation.
[0049] When the diesel generator body 103 moves to the appropriate position, the articulated telescopic cylinder 201 is activated. The telescopic rod of the articulated telescopic cylinder 201 extends outward, and its end drives the Y-shaped swing arm 204 to swing downward around a pair of second U-shaped seats 203 via the triangular ear seat 205.
[0050] As the Y-shaped swing arm 204 swings downward, it simultaneously drives the chassis 206 to swing downward. During the swing, under the tension of the first spring 207, the chassis 206 gradually disengages from the support of the limiting top rod 202 and then folds downward until the bottom surface of the chassis 206 is stably in contact with the ground. At this time, the four load-bearing wheels 102 at the bottom of the base plate 100 are in a suspended state. The chassis 206 provides stable support for the entire device and the diesel generator body 103, preventing the device from sliding during operation, further improving the stability of the protective structure, and ensuring the smooth operation of the diesel generator body 103.
[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A protective structure for a diesel generator, comprising a base plate (100), characterized in that: The diesel generator body (103) is placed on the top surface of the base plate (100). Rectangular notches are provided at the four corners of the base plate (100). A hinged telescopic cylinder (201) and a Y-shaped swing arm (204) are respectively hinged on the side wall of the rectangular notch. The telescopic rod end of the hinged telescopic cylinder (201) and the bottom end of the Y-shaped swing arm (204) located at the same location are hinged together to the chassis (206). Two pairs of L-shaped plates (300) are fixedly installed on the front and rear sides of the top plate (100). A hollow sleeve (301) is fixedly inserted at the top of the L-shaped plate (300), and a fixed slide cylinder (303) is slidably inserted inside the hollow sleeve (301). A fixed shaft (305) is fixedly inserted inside the fixed slide (303). A first swing arm (306) is fixedly installed at the top of the fixed shaft (305). A first pressure plate (307) is installed at the outer end of the first swing arm (306). The first pressure plate (307) abuts against the top surface of the diesel generator body (103). A pair of L-shaped connecting plates (400) are fixedly provided on both sides of the L-shaped plate (300). A rack (401) is slidably inserted into the outer end of each pair of L-shaped connecting plates (400). A second swing arm (402) is fixedly provided at the outer end of the rack (401). A second pressure plate (403) is installed at the outer end of the second swing arm (402). The second pressure plate (403) abuts against the side of the diesel generator body (103). The bottom end of the fixed shaft (305) is fixedly fitted with a widened gear (310), which meshes with the rack (401), and the teeth of the widened gear (310) and the teeth of the rack (401) are in vertical sliding engagement.
2. The protective structure for a diesel generator according to claim 1, characterized in that: Two pairs of wheel axles (101) are rotatably inserted on the front and rear sides of the top of the base plate (100), and load-bearing wheels (102) are fixedly sleeved on the outer ends of the wheel axles (101).
3. The protective structure for a diesel generator according to claim 1, characterized in that: A first U-shaped seat (200) is fixedly installed on the top of the side wall of the rectangular notch, and a pair of second U-shaped seats (203) are fixedly installed on the bottom of the side wall of the rectangular notch. The cylinder body of the hinged telescopic cylinder (201) is hingedly installed in the first U-shaped seat (200), and the two ends of the opening of the Y-shaped swing arm (204) are hingedly installed in the pair of second U-shaped seats (203).
4. The protective structure for a diesel generator according to claim 1, characterized in that: The bottom end of the Y-shaped swing arm (204) is fixedly provided with a triangular ear seat (205), the end of the telescopic rod of the hinged telescopic cylinder (201) is hingedly installed on the top of the triangular ear seat (205), and a single ear seat is fixedly provided on the top surface of the chassis (206), the top of the single ear seat is hingedly installed on the bottom of the triangular ear seat (205).
5. The protective structure for a diesel generator according to claim 1, characterized in that: A first spring (207) is fixedly installed between the middle of the bottom surface of the Y-shaped swing arm (204) and the top surface of the chassis (206). A pair of limiting rods (202) are fixedly installed in the middle of the cylinder body of the articulated telescopic cylinder (201), and the bottom ends of the pair of limiting rods (202) are set downward toward the chassis (206).
6. The protective structure for a diesel generator according to claim 1, characterized in that: The hollow sleeve (301) has an oblique sliding hole (302) on its outer surface, and a limiting pin (304) is fixedly provided on the outer surface of the fixed slide cylinder (303). The outer end of the limiting pin (304) is slidably inserted into the oblique sliding hole (302).
7. The protective structure for a diesel generator according to claim 1, characterized in that: A retaining ring (308) is fixedly sleeved on the lower middle part of the fixed shaft (305), and a second spring (309) is sleeved on the lower middle part of the fixed shaft (305). The upper and lower ends of the second spring (309) abut against the hollow sleeve (301) and the retaining ring (308) respectively.
8. The protective structure for a diesel generator according to claim 1, characterized in that: A pair of fixing plates (404) are fixedly installed on the front and rear sides of the top of the base plate (100). A servo motor (405) is fixedly installed on the top of the fixing plate (404). A double-headed connecting rod (406) is fixedly installed at the end of the motor shaft of the servo motor (405). A pair of hinged connecting rods (407) are hinged at both ends of the double-headed connecting rod (406). The outer end of the hinged connecting rod (407) is movably hinged to the rack (401) on the same side.
9. The protective structure for a diesel generator according to claim 1, characterized in that: The outer end of the first swing arm (306) is threaded with a first bolt, the threaded end of the first bolt is fixedly connected to the first pressure plate (307), and the threaded end of the first bolt is fitted with a buffer spring.
10. The protective structure for a diesel generator according to claim 1, characterized in that: The outer end of the second swing arm (402) is threaded with a second bolt, the threaded end of the second bolt is fixedly connected to the second pressure plate (403), and the threaded end of the second bolt is fitted with a buffer spring.