Forklift and sealing structure of side door of forklift
By designing a sealing structure with a fixing part, side airbag, and sealing edge on the side door of the forklift, the problem of poor sealing at the lifting gap is solved, the cab is effectively waterproofed, and the maintenance process is simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HELI CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-28
AI Technical Summary
Existing electric counterbalance forklifts have poor sealing at the lifting gap, leading to water leakage in the cab. This is especially problematic when replacing the battery, requiring re-sealing, which is inconvenient.
A sealing structure for a forklift side door was designed, including a fixing part, a side airbag and a sealing edge. It is fixed to the side door by snap-fit and the side airbag is used to fit against the vehicle body to achieve a seal. The baffle extends to the inside of the rain shelter to block water. Combined with a U-shaped frame and clamping teeth, the stability and sealing effect are improved.
It effectively prevents rainwater and moisture from entering from the side of the cab, enhances sealing, avoids the hassle of reapplying sealant, adapts to different plate thicknesses and top frame shapes, and is low in cost and simple in structure.
Smart Images

Figure CN224170778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift manufacturing technology, and specifically to a sealing structure for a forklift and its side door. Background Technology
[0002] Currently, most electric counterbalance forklifts use lead-acid or lithium-ion batteries as their power source. In order to extend the service life of forklifts in busy working environments, users often use multiple batteries in rotation. The common way to replace batteries is to leave a lifting gap on the top frame of the forklift cab and use a crane to lift the battery.
[0003] Because the side doors of the cab are typically sealed to the roof frame using side airbags, rainwater will still flow into the cab through the joints of the roof frame with lifting gaps, regardless of how tightly the side airbags are pressed against the roof frame. Some manufacturers apply silicone sealant to the gaps in the roof frame after the rain canopy is installed, making it a unified whole with the side of the roof frame, and then use the side airbags to achieve a sealing effect. However, this sealing method requires reapplying sealant when removing the rain canopy to install the battery, which is inconvenient for users. Utility Model Content
[0004] The purpose of this invention is to overcome the water leakage problem in the cab of a forklift with a lifting notch in the existing technology, and to provide a sealing structure for the forklift and its side door. This sealing structure can ensure the seal between the side door of the forklift and the side of the top frame, and can also effectively prevent water from entering from the side of the lifting notch of the cab.
[0005] To achieve the above objectives, this utility model provides a sealing structure for a forklift side door, comprising:
[0006] The fixing part is U-shaped and is sleeved on the outer edge of the forklift side door panel and engaged in a snap-fit manner.
[0007] The side airbag is located on the side of the fixing part closer to the vehicle body and is integrally formed with the fixing part;
[0008] A sealing edge is provided on the side of the side airbag away from the fixing part, and the sealing edge is used to press and seal against the side of the vehicle body roof frame.
[0009] A baffle is provided on the top side of the fixing part, and the end of the baffle away from the fixing part extends to the inner side of the downward-turned edge of the rain shelter.
[0010] Optionally, a U-shaped frame is provided inside the fixing part.
[0011] Optionally, a clamping part is provided on the inner side of the U-shape, the clamping part including multiple sets of clamping teeth, each set of clamping teeth being symmetrically distributed along two opposite inner walls of the U-shape.
[0012] Optionally, one end of the clamping tooth is connected to the interior of the U-shape, and the other end of the clamping tooth extends obliquely along the inner bottom of the U-shape.
[0013] Optionally, a compression block is provided on the side of the side airbag cavity away from the sealing edge.
[0014] Optionally, a hook portion that bends toward the forklift side door panel is provided on one side bottom of the fixing part.
[0015] Optionally, the baffle is located on the side of the fixing part that connects to the side airbag, and a guide slope is provided on the side of the baffle away from the side airbag.
[0016] Optionally, the stop is located on the side of the fixing part away from the side airbag.
[0017] Optionally, the stop and the fixing part are integrally formed.
[0018] The second aspect of this utility model provides a forklift, comprising:
[0019] The forklift body includes a forklift cab and a forklift side door, and the top of the forklift cab is provided with a lifting notch;
[0020] A rain shelter is provided on the top of the forklift cab, and the rain shelter extends to the outside of the forklift side door on both sides, with downward-turned edges at the ends of both sides of the rain shelter.
[0021] As described above, the sealing structure is used to cooperate with the downward-flipped edge to waterproof and seal the forklift side door.
[0022] Through the above technical solution, the present invention provides a sealing structure that achieves a seal between the side frame and the side of the top frame by engaging the fixing part with the outer edge of the forklift side door panel and squeezing the side airbag with the sealing edge. The end of the baffle located at the top of one side of the fixing part extends away from the fixing part to the inner side of the downward-turned edge of the rain shelter, thereby effectively preventing rainwater from the side of the cab from seeping into the vehicle through the gap between the forklift side door and the rain shelter. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the end face of a sealing structure according to a specific embodiment of the present utility model;
[0024] Figure 2This is a schematic diagram of the end face of another sealing structure provided according to a specific embodiment of the present utility model;
[0025] Figure 3 This is a schematic diagram illustrating the installation of a sealing structure in conjunction with a forklift side door, according to a specific embodiment of this utility model.
[0026] Figure 4 This is a schematic diagram illustrating the sealing structure and its cooperation with the side door of a forklift, according to a specific embodiment of this utility model.
[0027] Figure 5 This is a schematic diagram of the forklift cab assembly in this utility model;
[0028] Figure 6 yes Figure 1 A schematic diagram showing the sealing structure and its fit with the rectangular tube.
[0029] Figure 7 yes Figure 2 A schematic diagram showing the sealing structure and its fit with the irregular square tube.
[0030] Explanation of reference numerals in the attached figures
[0031] 1. Fixing part; 11. U-shaped frame; 12. Clamping teeth; 13. Hook part; 2. Side airbag; 21. Extrusion block; 3. Sealing edge; 4. Stop part; 41. Guide slope; 100. Forklift cab; 200. Forklift side door; 300. Lifting notch; 301. Lifting cover plate; 400. Rain shelter canopy; 401. Downward flip-up edge. Detailed Implementation
[0032] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0033] According to the following Figures 1 to 5 Detailed description of the sealing structure provided by the present invention and the forklift having the sealing structure.
[0034] The forklift described in this utility model includes a forklift cab 100 and a forklift side door 200. To ensure airtightness, a sealing strip is provided between the forklift cab 100 and the forklift side door 200. However, in actual use, for most forklift cabs 100 in China with lifting notches 300, the presence of the lifting notches 300 leads to poor sealing performance of the side door, which easily causes water leakage in rainy weather or when washing the vehicle. Moreover, the leakage points will basically appear on both sides of the lifting notches 300, and the side airbags 2 of ordinary sealing strips cannot achieve a complete sealing effect.
[0035] Based on this, such as Figure 1 , Figure 2 As shown, this utility model provides a sealing structure, which is installed on the forklift side door 200 to achieve airtightness when the forklift side door 200 is closed. The sealing structure of the forklift side door 200 includes a fixing part 1, a side airbag 2, a sealing edge 3, and a stop part 4. The fixing part 1 is U-shaped and is used to fit on the outer edge of the forklift side door 200 plate and engage with the forklift side door 200. The side airbag 2 is located on the side of the fixing part 1 near the vehicle body and is integrally formed with the fixing part 1. The sealing edge 3 is located on the side of the side airbag 2 away from the fixing part 1 and is used to press against the side of the vehicle body roof guard after the side airbag 2 is compressed and deformed to achieve a seal. The stop part 4 is located on the top of one side of the fixing part 1, and the end of the stop part 4 away from the fixing part 1 extends to the inner side of the downward-turned edge 401 of the rain shelter 400.
[0036] In this utility model, the sealing structure is connected to the forklift side door 200 through the fixing part 1. The connection method can be an existing method that can quickly and reliably connect the sealing structure and the forklift side door 200. For example, a mating structure is provided on the inner side of the U-shaped fixing part 1 to form a one-way guide and reverse check with the edge of the forklift side door 200.
[0037] The side airbag 2 and the sealing edge 3 are made of elastic foam material, which has a certain degree of compressibility and resilience. When the forklift side door 200 is closed, the side airbag 2 can fit tightly against the vehicle body to form a good sealing effect. Furthermore, the seamless fit between the sealing edge 3 and the side of the vehicle body overhead guard prevents water and air from entering and enhances the sealing effect.
[0038] The end of the baffle 4 furthest from the fixing part 1 extends to the inner side of the downward-flipped edge 401 of the rain shelter 400. Together with the downward-flipped edge 401, it ensures a seal between the forklift side door 200 and the side of the top frame, and effectively prevents water from the side of the forklift cab 100 from entering the gap between the rain shelter 400 and the forklift side door 200. The baffle 4 can be made of sponge rubber.
[0039] like Figure 3 As shown, the sealing strip with the sealing structure provided by this utility model is a ring body corresponding to the shape of the forklift side door 200, wherein the stop part 4 of the sealing structure is provided on the upper side of the forklift side door 200 and extends to a small section on the left side of the forklift side door 200.
[0040] In this invention, to increase the stability of the sealing structure, a U-shaped frame 11 is provided inside the fixing part 1. The U-shaped frame 11 provides additional support for the fixing part 1, enhancing the rigidity of the entire sealing structure. This helps prevent deformation or damage to the sealing structure due to vibration or impact during forklift operation. The U-shaped frame 11 can be made of high-strength, corrosion-resistant materials, such as stainless steel or high-quality alloy steel. The shape and size of the U-shaped frame 11 are customized according to the edge shape and size of the forklift side door 200 panel. Together with the rubber strip covering its surface, it constitutes the fixing part 1, ensuring that the fixing part 1 can fit tightly against the edge of the side door panel and provide sufficient support.
[0041] In this invention, to prevent the sealing strip from falling off and to accommodate installations with different plate thicknesses, a clamping part is provided on the inner side of the U-shape. The clamping part includes multiple sets of clamping teeth 12, each set of clamping teeth 12 being symmetrically distributed along two opposite inner walls of the U-shape. Specifically, one end of the clamping tooth 12 is connected to the interior of the U-shape, and the other end of the clamping tooth 12 extends obliquely along the inner bottom of the U-shape. The clamping tooth 12 can be integrally formed with the fixing part 1.
[0042] In this invention, in order to improve the contact surface and sealing effect of the sealing edge 3, a compression block 21 is provided on the side of the inner cavity of the side airbag 2 away from the sealing edge 3.
[0043] In this invention, a hook portion 13 is provided on one bottom side of the fixing part 1, which bends toward the forklift side door 200 plate. The hook portion 13 is interference-fitted with one side of the forklift side door 200 plate, which not only effectively prevents the fixing part 1 from falling off, but also has a waterproof function.
[0044] In this utility model, the baffle 4 is located on the side of the fixing part 1 that connects to the side airbag 2. The baffle 4 is provided with a guide slope 41 on the side away from the side airbag 2, so as to ensure that rainwater coming from the side of the cab or water sprayed during vehicle washing can be smoothly guided down along the guide slope 41, thereby effectively preventing water from accumulating or seeping into areas that need to be waterproofed.
[0045] In some embodiments, by adjusting the position of the stop 4, the sealing structure can be adapted to the side door of a forklift with a top frame made of rectangular or irregularly shaped steel tubing. When the stop 4 is located at the top of the fixing part 1 on the side away from the side airbag 2, the sealing structure is adapted to the side door of the forklift with a top frame made of irregularly shaped steel tubing. Figure 7 As shown. When the stop 4 is located at the top of the side of the fixed part 1 connected to the side airbag 2, the sealing structure is adapted to the side door of a forklift with a top frame made of rectangular steel tubing, such as... Figure 6 As shown.
[0046] In this utility model, the stop part 4 and the fixing part 1 are integrally formed.
[0047] This utility model also provides a forklift, which includes a forklift body, a rain shelter 400, and the aforementioned sealing structure.
[0048] Furthermore, the forklift body includes a forklift cab 100 and a forklift side door 200. The top of the forklift cab 100 has a lifting notch 300, and a rain shelter 400 is located on the top of the forklift cab 100. The rain shelter 400 extends to the outside of the forklift side door 200 on both sides, and the ends of both sides of the rain shelter 400 are provided with downward-curving edges 401. A lifting cover plate 301 is provided at the corresponding position of the lifting notch 300, such as... Figure 4 As shown, the lifting cover plate 301 is located above the rain shelter 400, and the sealing structure is installed on the forklift side door 200 to seal the gap between the forklift side door 200 and the forklift cab 100. The baffle 4 on the sealing structure extends to the inside of the downward-turned edge 401, which can prevent side rainwater from entering the gap between the rain shelter 400 and the forklift side door 200, thereby achieving complete waterproofing of the forklift side door 200.
[0049] like Figure 5 As shown, in some embodiments, the forklift cab 100 comprises a mounted front rainproof glass assembly, a mounted top rainproof glass assembly, a mounted rear rainproof glass assembly, a mounted left-side door assembly, and a right-side door assembly.
[0050] Based on the forklift provided by this utility model, the rain canopy 400 installed on the top of the cab can block most of the rainwater falling from above. The rain canopy 400 has bent and folded edges on both sides, which can strengthen the strength of the rain canopy 400 and guide the water accumulated on the top. The sealing strip of the forklift side door 200 adopts a sealing structure with an airbag on the side and a sponge rubber baffle 4 on the vertical surface, which can not only ensure the seal between the forklift side door 200 and the side of the top frame, but also prevent rainwater from the side from entering the gap between the rain canopy 400 and the forklift side door 200. The sealing structure used in the forklift cab 100 is low in cost, simple in structure, and has a significant waterproof effect.
[0051] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.
Claims
1. A sealing structure for a forklift side door, characterized in that, include: The fixing part (1) is U-shaped and is sleeved on the outer edge of the forklift side door (200) panel and engaged in a snap-fit manner. Side airbag (2) is provided on the side of the fixing part (1) near the vehicle body and is integrally formed with the fixing part (1); A sealing edge (3) is provided on the side of the side airbag (2) away from the fixing part (1), and the sealing edge (3) is used to press and seal against the side of the vehicle body roof frame; A baffle (4) is provided on the top of one side of the fixing part (1), and the end of the baffle (4) away from the fixing part (1) extends to the inside of the downward-turned edge (401) of the rain shelter canopy (400).
2. The sealing structure according to claim 1, characterized in that, A U-shaped frame (11) is provided inside the fixing part (1).
3. The sealing structure according to claim 1, characterized in that, The inner side of the U-shape is provided with a clamping part, which includes multiple sets of clamping teeth (12), and each set of clamping teeth (12) is symmetrically distributed along the two opposite inner walls of the U-shape.
4. The sealing structure according to claim 3, characterized in that, One end of the clamping tooth (12) is connected to the interior of the U-shape, and the other end of the clamping tooth (12) extends obliquely along the inner bottom of the U-shape.
5. The sealing structure according to claim 1, characterized in that, A compression block (21) is provided on the side of the inner cavity of the side airbag (2) away from the sealing edge (3).
6. The sealing structure according to claim 1, characterized in that, The bottom side of the fixing part (1) is provided with a hook part (13) that bends toward the forklift side door (200) plate.
7. The sealing structure according to claim 1, characterized in that, The baffle (4) is located on the side of the fixing part (1) that connects to the side airbag (2), and a guide slope (41) is provided on the side of the baffle (4) away from the side airbag (2).
8. The sealing structure according to claim 1, characterized in that, The stop (4) is located on the side of the fixing part (1) away from the side airbag (2).
9. The sealing structure according to claim 1, characterized in that, The stop (4) and the fixing part (1) are integrally formed.
10. A forklift, characterized in that, include: The forklift body includes a forklift cab (100) and a forklift side door (200), and the top of the forklift cab (100) is provided with a lifting notch (300); A rain shelter (400) is provided on the top of the forklift cab (100), the rain shelter (400) extends to the outside of the forklift side door (200) on both sides, and the ends of the rain shelter (400) are provided with downward-turned edges (401). The sealing structure as described in any one of claims 1-9 is used to cooperate with the downward flange (401) to waterproof the sides and seal the forklift side door (200).