Diesel generator preheating device and diesel generator
By designing a diesel generator preheating device, the position of the hot air gun can be adjusted using a base, support hose, and air hood, solving the problem of difficult start-up of diesel generators in cold weather, achieving automatic preheating, reducing labor intensity, and improving convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI DINGBO GENERATOR SET MFG CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-05
AI Technical Summary
In cold weather, existing diesel generators are difficult to start, and existing preheating methods are labor-intensive and require a large number of personnel.
Design a diesel generator preheating device, including a base, a support hose, a receiving ring, a hot air gun, and an air supply hood. The base is fixed to the diesel generator, and the position and orientation of the hot air gun are adjusted by the support hose and the air supply hood to achieve automatic preheating of the diesel generator components, reducing the need for manual handheld hot air blowers.
It reduces labor intensity, improves the convenience and efficiency of preheating, and can automatically adjust the position and orientation of the hot air gun, freeing up users and reducing manual operation.
Smart Images

Figure CN224326346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power generation equipment technology, and in particular to a diesel generator preheating device and a diesel generator. Background Technology
[0002] A diesel generator is a power machine that uses diesel fuel and a diesel engine as the prime mover to drive a generator to produce electricity. Diesel generators are widely used in mines, railways, field construction sites, road maintenance, factories, enterprises, hospitals, and other sectors due to their small size, flexibility, portability, complete accessories, and ease of operation and maintenance. They can also serve as an emergency device in locations not connected to the power grid, as an emergency power source during grid failures, and for more complex applications such as peak tripping, grid support, and grid output.
[0003] In cold weather, diesel generators often experience starting difficulties due to poor fuel flow, increased engine oil viscosity, and decreased battery performance. While switching to low-temperature diesel fuel or adding diesel anti-gelling agents can provide some relief, these methods are not very effective.
[0004] Currently, the main method for starting diesel generators in cold weather is through heating. One method is to install a heat grille to preheat the intake air, or to install a cylinder heater to continuously preheat the diesel fuel and coolant to maintain engine temperature. However, this method is costly, difficult, and inconvenient to maintain. Another, lower-cost method is to use a hot air gun to preheat the diesel fuel and coolant inside the cylinder, as well as the fuel filter and oil filter, to meet the conditions for starting the diesel generator. However, this method requires holding a hot air gun for an extended period of time while preheating the components, resulting in high labor intensity and requiring a large number of personnel. Utility Model Content
[0005] To address the above shortcomings, this utility model provides a diesel generator preheating device and a diesel generator, which can solve the problems of high labor intensity and large number of personnel required by the existing handheld hot air blower heating method.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] On one hand, a diesel generator preheating device includes:
[0008] A base for mounting onto a diesel generator;
[0009] A support hose, one end of which is fixed to the base, and the other end of which is fitted with a receiving ring;
[0010] A hot air gun, which is placed on the receiving ring;
[0011] An air supply hood has openings at both ends, with one end of the air supply hood fitted over the air outlet of the hot air gun.
[0012] Furthermore, a magnet is provided at the open end of the air supply hood away from the hot air gun.
[0013] Furthermore, multiple connecting strips are evenly arranged circumferentially at the open end of the air supply hood away from the hot air gun, with notches between adjacent connecting strips, and the magnet is installed at the end of the connecting strip away from the air supply hood.
[0014] Furthermore, an elastic rope is provided at one end of the air supply hood that is fitted over the air outlet of the hot air gun. The two ends of the elastic rope are respectively connected to the air supply hood, and when the air supply hood is fitted over the air outlet of the hot air gun, the elastic rope is wrapped around the hot air gun.
[0015] Furthermore, the receiving ring is provided with spring clips on the inner walls of opposite sides, so that when the hot air gun is placed on the receiving ring, the spring clips clamp the hot air gun.
[0016] Furthermore, one end of the spring is fixedly connected to the receiving ring, and the spring has an arc-shaped clamping part. The two springs are arranged with their protruding sides facing each other to clamp the hot air gun.
[0017] Furthermore, the clamping part is provided with an arc-shaped abutment at the end away from the spring piece and the receiving ring. The clamping part and the abutment form an integral S-shaped structure. The receiving ring is provided with an abutment surface for abutting against the abutment. The protruding side of the abutment abuts against the abutment surface.
[0018] Furthermore, an electromagnet is provided at the bottom of the base.
[0019] Furthermore, the base has a side groove on its side, and a screw hole extending from the top down into the side groove is provided on the base, with a locking bolt screwed into the screw hole.
[0020] On the other hand, a diesel generator is equipped with a diesel generator preheating device as described in any of the above claims.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] This utility model discloses a diesel generator preheating device. The device is mounted on a base and fixed to the diesel generator. A hot air gun is placed on a receiving ring, and the supporting hose is adjusted so that the outlet of the hot air gun and the end of its air supply shroud are open, facing and close to the component or location requiring preheating. The hot air generated by the hot air gun is delivered along the air supply shroud to the component or location of the diesel generator requiring preheating. This eliminates the need for the user to hold the hot air gun continuously, thus freeing the user and reducing workload. It also facilitates the selection of a suitable installation location and the adjustment of the hot air gun's position and orientation, ensuring convenient and practical application of the device.
[0023] The diesel generator of this utility model, by setting a diesel generator preheating device, can preheat the parts or positions of the diesel generator that need to be preheated, eliminating the need for the user to hold a hot air blower all the time, thereby freeing the user and reducing the workload. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0025] Figure 1 This is a schematic diagram of the structure of the diesel generator preheating device of this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the air supply hood in this utility model;
[0027] Figure 3 This is a schematic diagram of the accommodating ring from one perspective in this utility model;
[0028] Figure 4 This is a schematic diagram of the accommodating ring from another perspective in this utility model;
[0029] Figure 5 This is a schematic diagram of the diesel generator of this utility model used in conjunction with a preheating device.
[0030] The markings shown in the figure are as follows: 10-base; 11-electromagnet; 12-side groove; 14-locking bolt; 20-support hose; 30-accommodating ring; 31-spring piece; 32-supporting surface; 311-clamping part; 312-supporting part; 40-hot air gun; 50-air supply cover; 51-magnet; 52-connecting strip; 53-notch; 54-elastic rope; 100-diesel generator; 200-diesel generator preheating device. Detailed Implementation
[0031] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0034] On the one hand, please refer to Figures 1 to 4 A preferred embodiment of this utility model provides a diesel generator preheating device, which mainly includes a base 10, a support hose 20, a receiving ring 30, a hot air gun 40, and an air supply hood 50.
[0035] The base 10 is used for mounting onto the diesel generator. During implementation, the base 10 is fixedly mounted onto the diesel generator. One end of the support hose 20 is fixed to the base 10, and the other end is fitted with a receiving ring 30. The support hose 20 is preferably a gooseneck tube, which can be bent arbitrarily and its direction determined. Therefore, after the base 10 is mounted onto the diesel generator, the position of the receiving ring 30 can be adjusted via the support hose 20. The hot air gun 40 is placed on the receiving ring 30, which supports the hot air gun 40. Adjusting the position of the receiving ring 30 allows for adjustment of the position and orientation of the hot air gun 40. The air supply shroud 50 has openings at both ends. One open end of the air supply shroud 50 is fitted over the air outlet of the hot air gun 40. When the hot air gun 40 is activated, the hot air generated by the hot air gun 40 is blown into the air supply shroud 50 from one open end and blown out from the other end. In practice, the base 10 is installed and fixed next to the component or location of the diesel generator that needs preheating. Then, the hot air gun 40 is placed on the receiving ring 30, and the support hose 20 is adjusted so that the air outlet of the hot air gun 40 and the end of the air supply shroud 50 above it are open and facing and close to the component or location that needs preheating. The hot air gun 40 is then turned on, and the hot air generated by the hot air gun 40 is sent along the air supply shroud 50 to the component or location of the diesel generator that needs preheating to achieve preheating. In this way, on the one hand, by installing and fixing it with the base 10, the user does not need to hold the hot air gun all the time, thus freeing the user and reducing the workload. At the same time, by setting the support hose 20 and the air supply shroud 50, it is helpful to select a suitable installation position for the base 10, and it is also helpful to adjust the position and orientation of the hot air gun 40, so as to facilitate the delivery of air to the component or location of the diesel generator that needs preheating, ensuring practicality and convenience.
[0036] In a preferred embodiment, an electromagnet 11 is provided at the bottom of the base 10. The electromagnet 11 can attract the base 10 to a component made of steel or other materials, which facilitates the installation and fixation of the base 10.
[0037] In a preferred embodiment, a side groove 12 is provided on the side of the base 10, and a screw hole extending from the top of the base 10 to the side groove 12 is provided. A locking bolt 13 is screwed into the screw hole. By setting the side groove 12 and the locking bolt 13, when the generator has a thin sheet component (smaller than the width of the side groove 12), the side groove 12 can be inserted into the thin sheet component, and then the locking bolt 13 is tightened to fix the base 10.
[0038] The air supply hood 50 can be made of a rigid material, such as high-temperature resistant plastic or stainless steel, or a flexible material, such as fire-resistant cloth, depending on the actual application. In this exemplary embodiment, the air supply hood 50 is made of flexible fire-resistant cloth.
[0039] In this exemplary embodiment, a magnet 51 is provided at the open end of the air supply shroud 50 away from the hot air gun 40. Considering that many components on the diesel generator are made of materials such as steel, the material of the component or location requiring preheating is also made of materials such as steel, which can interact with the magnet 51. In use, the magnet 51 connects the other end of the air supply shroud 50 away from the hot air gun 40 to the component or location requiring preheating, ensuring that hot air can be blown towards the component or location requiring preheating. It can be understood that by setting the air supply shroud 50, the air outlet of the hot air gun 40 does not need to be close to the component or location requiring preheating. Instead, the air supply shroud 50 provides an air supply channel, which helps in the position adjustment of the hot air gun 40 and the selection of the installation position of the base 10. At the same time, the connection between the air supply shroud 50 and the component or location of the diesel generator requiring preheating via the magnet 51 enhances the installation stability of the preheating device of this utility model. Understandably, in order to achieve air outlet, the air supply shroud 50 and the parts or locations of the diesel generator that need to be preheated are not dense. In this case, the magnets 51 are not distributed throughout the entire opening of the air supply shroud 50, so as to leave gaps or openings for hot air to escape. At the same time, the hot air that escapes from these gaps or openings can increase the temperature of the surrounding area, which helps to improve the preheating efficiency.
[0040] Multiple connecting strips 52 are evenly arranged circumferentially at the open end of the air supply shroud 50 away from the hot air gun 40. The connecting strips 52 are made of flexible fire-resistant cloth, and there are notches 53 between adjacent connecting strips 52. Magnets 51 are installed at the ends of the connecting strips 52 away from the air supply shroud 50. By setting the connecting strips 52 and the notches 53 between adjacent connecting strips 52, hot air can be allowed to escape through the notches 53. It should be understood that allowing hot air to escape through the notches 53 does not mean that the hot air escapes without preheating, but rather that the hot air acts on the parts or locations of the diesel generator that need to be preheated before escaping through the notches 53 to form an airflow and prevent excessive pressure inside the air supply shroud 50. The flexible connecting strips 52 allow the magnets 51 of different connecting strips 52 to be connected to the raised surfaces of the generator, accommodating the use of more components.
[0041] An elastic rope 54 is provided at one end of the air supply cover 50 that is fitted onto the air outlet of the hot air gun 40. The two ends of the elastic rope 54 are connected to the air supply cover 50. When the air supply cover 50 is fitted onto the air outlet of the hot air gun 40, the elastic rope 54 is wrapped around the hot air gun 40. At this time, the elastic rope 54 facilitates the installation and fixation of the air supply cover 50 onto the hot air gun 40, and also facilitates the assembly and disassembly of the air supply cover 50 from the hot air gun 40.
[0042] The receiving ring 30 has an overall ring-shaped structure, and spring pieces 31 are provided on the inner walls of its opposite sides. When the hot air gun 40 is placed on the receiving ring 30, the spring pieces 31 clamp the hot air gun 40. The clamping of the spring pieces 31 can enhance the stability of the hot air gun 40 placed in the receiving ring 30, allow the receiving ring 30 to tilt slightly at a certain angle, and reduce the shaking of the hot air gun 40 during use.
[0043] One end of the spring clip 31 is fixedly connected to the receiving ring 30. The spring clip 31 has an arc-shaped clamping part 311. The protruding sides of the clamping parts 311 of the two spring clips 31 are arranged facing each other to clamp the hot air gun 40. When the hot air gun 40 is placed inside the receiving ring 30, the clamping parts 311 of the spring clips 31 clamp both sides of the hot air gun 40. It can be understood that the length of the hot air gun 40 is greater than the inner diameter of the receiving ring 30. Therefore, when the grip part of the hot air gun 40 is put into the receiving ring 30, the gun body part abuts against the upper edge of the receiving ring 30. At this time, the clamping parts 311 of the spring clips 31 clamp both sides of the grip of the hot air gun 40, which can achieve stable installation, and the installation and removal are convenient and reliable.
[0044] Furthermore, the clamping part 311 is provided with an arc-shaped abutment part 312 at the end away from the spring piece 31 and the receiving ring 30. The clamping part 311 and the abutment part 312 form an integral S-shaped structure. The receiving ring 30 is provided with an abutment surface 32 for abutting against the abutment part 312. The protruding side of the abutment part 312 abuts against the abutment surface 32. Considering that if only one end of the spring 31 interacts with the receiving ring 30, the clamping force may be insufficient, or after long-term use, the spring 31 may gradually move away, resulting in insufficient clamping force, a retaining part 312 is provided, and the retaining part 312 abuts against the retaining surface 32. When the hot air gun 40 is inserted, the two clamping parts 311 move away from each other, while the retaining part 312 abuts against the retaining surface 32, which can act in the opposite direction on the clamping part 311, increasing the difficulty for the clamping part 311 to move away, thereby better maintaining the overall shape of the spring 31 to ensure clamping force.
[0045] On the other hand, please refer to Figures 1 to 5 The present invention also provides a diesel generator, which is equipped with the aforementioned diesel generator preheating device 200. By setting the diesel generator preheating device 200, the components or positions of the diesel generator that need to be preheated can be preheated in cold weather.
[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A diesel generator preheating device, characterized in that, Including: A base (10) for mounting onto a diesel generator; A support hose (20) is fixed at one end to the base (10) and a receiving ring (30) is installed at the other end; A hot air gun (40) is placed on the receiving ring (30); An air supply hood (50) has openings at both ends, and one end of the air supply hood (50) is fitted onto the air outlet of the hot air gun (40).
2. The diesel generator preheating device according to claim 1, characterized in that, A magnet (51) is provided at the open end of the air supply hood (50) away from the hot air gun (40).
3. The diesel generator preheating device according to claim 2, characterized in that, Multiple connecting strips (52) are evenly arranged around the opening at the other end of the air supply hood (50) away from the hot air gun (40). There is a notch (53) between adjacent connecting strips (52). The magnet (51) is installed at the end of the connecting strip (52) away from the air supply hood (50).
4. The diesel generator preheating device according to claim 1, characterized in that, An elastic rope (54) is provided at one end of the air supply hood (50) fitted onto the air outlet of the hot air gun (40). The two ends of the elastic rope (54) are respectively connected to the air supply hood (50), and when the air supply hood (50) is fitted onto the air outlet of the hot air gun (40), the elastic rope (54) is wrapped around the hot air gun (40).
5. The diesel generator preheating device according to claim 1, characterized in that, The receiving ring (30) has spring pieces (31) on its opposite inner walls, so that when the hot air gun (40) is placed on the receiving ring (30), the spring pieces (31) clamp the hot air gun (40).
6. The diesel generator preheating device according to claim 5, characterized in that, One end of the spring (31) is fixedly connected to the receiving ring (30). The spring (31) has an arc-shaped clamping part (311). The two springs (31) have their protruding sides facing each other to clamp the hot air gun (40).
7. The diesel generator preheating device according to claim 6, characterized in that, The clamping part (311) has an arc-shaped abutment part (312) at the end away from the spring piece (31) and the receiving ring (30) where it is fixed. The clamping part (311) and the abutment part (312) form an integral S-shaped structure. The receiving ring (30) has an abutment surface (32) for abutting against the abutment part (312). The protruding side of the abutment part (312) abuts against the abutment surface (32).
8. The diesel generator preheating device according to claim 1, characterized in that, An electromagnet (11) is provided at the bottom of the base (10).
9. The diesel generator preheating device according to claim 1 or 8, characterized in that, The base (10) has a side groove (12) on its side, and the base (10) has a screw hole extending from the top to the side groove (12), and a locking bolt (13) is screwed into the screw hole.
10. A diesel generator, characterized in that, It is equipped with a diesel generator preheating device as described in any one of claims 1 to 9.