Forklift and novel self-centering forklift lifting oil cylinder fixing device thereof
By designing a new lifting cylinder fixing device including welding plates, adjustable fixing plates, pads and U-shaped clamps, the problems of easy deformation and low adjustment efficiency of the lifting cylinder are solved, and self-centering fixing and efficient assembly are achieved.
Patent Information
- Application Number
- CN202421005117.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing locking structure is prone to cause deformation of the lifting cylinder head or pulling, and the adjustment process is inefficient.
A new type of self-centered forklift lifting cylinder fixing device is designed, including a fixed position welding plate, an adjustable fixing plate, a slidable pad and a U-shaped clamp sleeved outside the lifting cylinder. Through the design of the bending parts and the use of the nut gasket assembly, the self-centering fixing and position adjustment of the lifting cylinder is achieved.
The self-centering fixation of the lifting cylinder is achieved, which avoids damage to the cylinder and shortens the service life, while simplifies operation and improves assembly efficiency.
Smart Images
Figure CN222961093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forklifts, in particular to a forklift and a novel self-centering fixing device for a forklift lifting cylinder. Background Art
[0002] A forklift is an industrial handling vehicle, referring to various wheeled handling vehicles for loading, unloading, stacking, and short-distance transportation operations of palletized goods. When stacking goods, the forklift needs to frequently lift and lower the goods, and the lifting cylinder will vibrate during this process, affecting the operation safety. Therefore, it is necessary to fix the top of the lifting cylinder again. The traditional method for fixing the lifting cylinder is to fix it with a U-shaped clamp and a tightening bolt. First, adjust the position of the tightening bolt and then lock the U-shaped clamp. However, it is not easy to control the position adjustment of the tightening bolt, and the lifting cylinder is often deformed by being pushed or pulled. Moreover, the adjustment process requires repeated operations, resulting in very low efficiency. Summary of the Utility Model
[0003] The technical problem solved by the utility model is that the existing locking structure is likely to cause the deformation of the lifting cylinder by pushing or pulling.
[0004] To solve the above technical problems, the technical solution of the utility model provides a novel self-centering fixing device for a forklift lifting cylinder, which includes:
[0005] A welding plate with a fixed position;
[0006] A fixing plate adjustably connected to the welding plate;
[0007] A cushion block slidably connected to the fixing plate and contacting the lifting cylinder; and
[0008] A U-shaped clamp sleeved outside the lifting cylinder and adjustably connected to the fixing plate; wherein
[0009] The fixing plate is a bent part. When the position of the fixing device needs to be adjusted, the positions are adjusted through the two bent parts of the fixing plate and the welding plate and the U-shaped clamp respectively.
[0010] Optionally, a first adjustment groove is provided in the first bent part of the fixing plate. The U-shaped clamp passes through the first adjustment groove and is connected with a nut gasket assembly. The position between the fixing plate and the U-shaped clamp is adjusted in the first direction through the first adjustment groove.
[0011] Optionally, the U-shaped clamp includes an arc-shaped section in the shape of a flat strip steel and two protruding sections in the shape of round steel. External threads are provided on the protruding sections. The arc-shaped section fits the lifting cylinder, and the protruding sections pass through the first adjustment groove.
[0012] Optionally, one side of the cushion block is provided with an arc groove whose structure matches that of the lifting oil cylinder, and the other side is provided with a square groove whose structure matches that of the fixed plate.
[0013] Optionally, the fixed plate is connected to the square groove, the arc groove contacts the lifting oil cylinder, the arc section of the U-shaped clamp fits the lifting oil cylinder, the extended section of the U-shaped clamp passes through the first adjustment groove and is connected to the nut gasket assembly. After the position in the first direction is adjusted, tighten the nut gasket assembly to lock the position of the lifting oil cylinder in the first direction.
[0014] Optionally, the arc section of the U-shaped clamp and the arc groove of the cushion block jointly form an installation groove that matches the outer contour size of the lifting oil cylinder.
[0015] Optionally, the second bending part of the fixed plate is provided with a second adjustment groove, the welding plate is provided with an installation hole, a bolt gasket assembly is connected between the second adjustment groove and the installation hole, and the fixed plate and the welding plate realize position adjustment in the second direction through the second adjustment groove; after the position in the second direction is adjusted, tighten the bolt gasket assembly to lock the position of the lifting oil cylinder in the second direction.
[0016] Optionally, the first adjustment groove and the second adjustment groove are of waist-shaped hole groove structure.
[0017] To solve the above technical problems, the technical solution of the present utility model also provides a forklift, including the novel self-centering forklift lifting oil cylinder fixing device according to any one of the above.
[0018] The beneficial effect of the technical solution of the present utility model is:
[0019] The adjustment device of the present utility model can be self-centered and fixed, ensuring the correctness of assembly, avoiding damage to the oil cylinder and extending the service life of the oil cylinder. And the fixing device does not need adjustment, simplifies the operation, and improves the assembly efficiency. Description of the Drawings
[0020] Figure 1 It is an assembly schematic diagram of the fixing device in the embodiment of the present utility model;
[0021] Figure 2 It is a structural schematic diagram of the U-shaped clamp in the embodiment of the present utility model;
[0022] Figure 3 It is a structural schematic diagram of the cushion block in the embodiment of the present utility model;
[0023] Figure 4 It is a structural schematic diagram of the fixed plate in the embodiment of the present utility model;
[0024] Figure 5This is a schematic structural diagram of the welding plate in the embodiment of the present utility model. Detailed implementation manners
[0025] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present utility model.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.
[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0028] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0029] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.
[0030] Please refer to Figure 1As shown, a new type of self-centering forklift lifting cylinder fixing device of an embodiment is shown, which includes a welding plate 5 with a fixed position; a fixing plate 4 connected to the welding plate 5 with adjustable position; a cushion block 2 slidably connected to the fixing plate 4 and contacting the lifting cylinder; and a U-shaped clamp 1 sleeved outside the lifting cylinder and connected to the fixing plate 4 with adjustable position; wherein the fixing plate 4 is a bent part, and when the position of the fixing device needs to be adjusted, the positions are adjusted through the two bent parts of the fixing plate 4 with the welding plate 5 and the U-shaped clamp 1 respectively.
[0031] In this embodiment, as Figure 4 shown, a first adjustment groove 411 is provided on the first bent part 41 of the fixing plate 4. The U-shaped clamp 1 passes through the first adjustment groove 411 and is connected to a nut gasket assembly 3. The position between the fixing plate 4 and the U-shaped clamp 1 is adjusted in the first direction through the first adjustment groove 411.
[0032] In this embodiment, as Figure 2 shown, the U-shaped clamp 1 includes an arc-shaped section 11 in the shape of a flat strip steel and two protruding sections 12 in the shape of round steel. The protruding sections 12 are provided with external threads. The arc-shaped section 11 fits the lifting cylinder, and the protruding sections 12 pass through the first adjustment groove 411.
[0033] In this embodiment, as Figure 3 shown, an arc-shaped groove 21 with a structure matching the lifting cylinder is provided on one side of the cushion block 2, and a square groove 22 with a structure matching the fixing plate 4 is provided on the other side.
[0034] In this embodiment, the fixing plate 4 is connected to the square groove 22, the arc-shaped groove 21 contacts the lifting cylinder, the arc-shaped section 11 of the U-shaped clamp 1 fits the lifting cylinder, and the protruding sections 12 of the U-shaped clamp 1 pass through the first adjustment groove 411 and are connected to the nut gasket assembly 3. After the position in the first direction is adjusted, the nut gasket assembly 3 is tightened to lock the position of the lifting cylinder in the first direction.
[0035] In this embodiment, the arc-shaped section 11 of the U-shaped clamp 1 and the arc-shaped groove 21 of the cushion block 2 together form an installation groove matching the outer contour size of the lifting cylinder.
[0036] In this embodiment, as Figure 4 and Figure 5 shown, a second adjustment groove 421 is provided on the second bent part 42 of the fixing plate 4, and the welding plate 5 is provided with an installation hole 51. A bolt gasket assembly 6 is connected between the second adjustment groove 421 and the installation hole 51. The fixing plate 4 and the welding plate 5 are adjusted in the second direction through the second adjustment groove 422; after the position in the second direction is adjusted, the bolt gasket assembly 6 is tightened to lock the position of the lifting cylinder in the second direction
[0037] In this embodiment, the first adjustment groove 411 and the second adjustment groove 421 are of waist-shaped hole groove structures.
[0038] The technical solution of this embodiment also provides a forklift, including the novel self-centering forklift lifting cylinder fixing device according to any one of the above.
[0039] The characteristics and functions of the present utility model are further understood through the following description.
[0040] See Figure 1 , a self-centering forklift lifting cylinder fixing device of this embodiment, includes a U-shaped clamp 1, a spacer 2, a nut gasket assembly 3, a fixing plate 4, a welding plate 5 and a bolt gasket assembly 6. The U-shaped clamp 1 is shown in Figure 2 , which is a round steel with a U-shaped appearance. The protruding sections 12 at both ends of the round steel have external threads and can be tightened with the nut gasket assembly 3. The middle of the round steel is flattened, and the inner ring of the arc section 11 just fits over the cylinder barrel of the oil cylinder.
[0041] The spacer 2 is shown in Figure 3 , which is a nylon plastic part. One end is an arc-shaped groove 21 that cooperates with the cylinder barrel of the oil cylinder, and the other end is provided with a square groove 22 that cooperates with the fixing plate 4. It is used for pressing and supporting between the oil cylinder and the fixing plate 4.
[0042] The fixing plate 4 is shown in Figure 4 , which is a right-angle bending plate (of course, in other embodiments, it doesn't necessarily have to be a right angle bend, and bends at other angles can also achieve the function of the fixing plate 4). The two sides of the right-angle bend respectively use two groups of long slots (the first adjustment slot 411 and the second adjustment slot 421), and can be adjusted in the XY direction according to the position of the oil cylinder.
[0043] The welding plate 5 is shown in Figure 5 , which is a long strip-shaped steel plate. One end is welded to the channel steel, and the other end is provided with two groups of mounting holes 51 that are locked with the second adjustment slot 421 of the fixing plate 4 for fixing the position of the entire device.
[0044] The assembly process of the fixing device of the present utility model is as follows:
[0045] As Figure 1 shown, pass the inner surface of the arc section 11 of the U-shaped clamp 1 through the lifting cylinder barrel 100 of the lifting cylinder, and pass the protruding sections 12 at both ends into the first adjustment slot 411 of the fixing plate 4, and pre-tighten them respectively with two groups of nut gasket assemblies 3. Then, insert the spacer 2 between the lifting cylinder and the fixing plate 4 to ensure that the square groove 22 of the spacer 2 is stuck on the edge of the fixing plate 4. Pre-tighten again, and the spacer 2 will slide and adjust itself according to the position of the oil cylinder to ensure that the assembly does not break away from the lifting cylinder.
[0046] When the previous structural member was fabricated, the welding plate 5 had already been welded to the channel steel 200. At this time, rotate the assembly to make the connecting plane of the fixing plate 4 and the welding plate 5 fit. If there is a gap, push or gently tap the assembly, and the fixing plate 4 will slide within the square groove 22 of the spacer block 2, and the U-shaped clamp 1 will also slide within the first adjustment groove 411 of the fixing plate 4. After observing that they are basically in contact, use the bolt gasket assembly 6 to tightly connect the fixing plate 4 and the welding plate 5. Since the connecting end of the fixing plate 4 and the welding plate 5 is also provided with a second adjustment groove 422, the error in the other direction can be automatically adjusted. After the fixing plate 4 and the welding plate 5 are tightened, tighten the nut gasket assembly 3 to lock the assembly and the lifting cylinder. At this time, the fixing of the lifting cylinder is completed, and mark the locking position.
[0047] In summary, the adjustment device of the present utility model can perform self-centering fixation, ensure the correctness of the assembly, avoid damaging the cylinder, and extend the service life of the cylinder. Moreover, the fixing device does not require adjustment, simplifies the operation, and improves the assembly efficiency.
[0048] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model accordingly. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A new self-centering forklift lifting cylinder fixing device, characterized in that: include: A fixed position welding plate; A fixing plate adjustably connected to the welding plate; A pad slidably connected to the fixing plate and contacting the lifting cylinder; as well as A U-shaped clamp sleeved outside the lifting cylinder and connected to the fixing plate in an adjustable position; in The fixing plate is a bent part. When the position of the fixing device needs to be adjusted, the position is adjusted through the two bent parts of the fixing plate, the welding plate and the U-shaped clamp respectively.
2. The novel self-centering forklift lifting cylinder fixing device according to claim 1 is characterized in that: The first bending portion of the fixing plate is provided with a first adjustment groove, the U-shaped clamp passes through the first adjustment groove and is connected to the nut gasket assembly, and the position between the fixing plate and the U-shaped clamp is adjusted in the first direction through the first adjustment groove.
3. The novel self-centering forklift lifting cylinder fixing device according to claim 2 is characterized in that: The U-shaped clamp includes an arc section in the shape of a flat steel bar and two protruding sections in the shape of round steel. The protruding sections are provided with external threads. The arc section fits the lifting cylinder, and the protruding sections pass through the first adjustment slot.
4. The novel self-centering forklift lifting cylinder fixing device according to claim 3 is characterized in that: One side of the cushion block is provided with an arc groove whose structure matches the lifting cylinder, and the other side is provided with a square groove whose structure matches the fixing plate.
5. The novel self-centering forklift lifting cylinder fixing device according to claim 4 is characterized in that: The fixing plate is connected to the square groove, the arc groove contacts the lifting cylinder, the arc section of the U-shaped clamp fits the lifting cylinder, the extended section of the U-shaped clamp passes through the first adjustment groove and is connected to the nut washer assembly, and when the position in the first direction is adjusted, the nut washer assembly is tightened to lock the position of the lifting cylinder in the first direction.
6. The novel self-centering forklift lifting cylinder fixing device according to claim 5 is characterized in that: The arc section of the U-shaped clamp and the arc groove of the cushion block together form a mounting groove that matches the outer contour size of the lifting cylinder.
7. The novel self-centering forklift lifting cylinder fixing device according to claim 6 is characterized in that: The second bending portion of the fixing plate is provided with a second adjustment groove, the welding plate is provided with a mounting hole, a bolt gasket assembly is connected between the second adjustment groove and the mounting hole, and the fixing plate and the welding plate are positionally adjusted in the second direction through the second adjustment groove; after the position in the second direction is adjusted, the bolt gasket assembly is tightened to lock the position of the lifting cylinder in the second direction.
8. The novel self-centering forklift lifting cylinder fixing device according to claim 7 is characterized in that: The first adjustment groove and the second adjustment groove are waist-shaped hole groove structures.
9. A forklift, characterized in that: It comprises a novel self-centering forklift lifting cylinder fixing device according to any one of claims 1-8.