Forklift external compressor mounting device
By using an external compressor mounting device for forklifts, and utilizing engine power output and a mounting bracket adjustment structure, the installation problem of air conditioning compressors in high-temperature environments for forklifts has been solved, achieving stable operation and low-cost installation of the compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HELI CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-23
AI Technical Summary
The lack of effective air conditioning compressor installation solutions for existing forklifts in high-temperature environments has resulted in unmet operator needs and difficulties in subsequent installation.
An external compressor mounting device for forklifts was designed. It utilizes the crankshaft power output of the engine, transmits power through a double-groove pulley and belt, and ensures stable installation and position adjustment of the compressor through a fixed frame and an adjustable frame structure.
This achieved stable operation of the compressor, reduced installation costs and complexity, and maintained the overall performance and stability of the unit.
Smart Images

Figure CN224396658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift technology, and in particular to an external compressor mounting device for forklifts. Background Technology
[0002] As industrial vehicles used for handling and loading / unloading goods, forklifts are becoming increasingly important as the industry develops and mechanical handling replaces manual labor. This has led to a significant increase in demand for forklifts. At the same time, forklifts are being used in a wider range of scenarios, and the environments and locations they operate in are becoming more complex. They are also frequently used in high-temperature environments, which has led to a demand from operators for forklifts to be equipped with air conditioning. However, due to the current structural limitations of forklifts, such as the fact that the engines they are equipped with do not have integrated air conditioning compressors, it is difficult to install external air conditioning compressors in the aftermarket. Utility Model Content
[0003] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of this invention is to provide an external compressor mounting device for forklifts that ensures stable compressor operation.
[0004] The forklift external compressor mounting device proposed in this utility model includes an engine, a double-groove pulley mounted on the crankshaft of the engine, a fixing frame fixed on the engine body, an adjusting frame fixed at the bottom of the fixing frame, a compressor fixed inside the adjusting frame, and a belt sleeved on the pulley of the compressor and the double-groove pulley.
[0005] Preferably, the fixing frame includes a fixing plate, a base plate is fixed to the bottom of the fixing plate, and a first stiffening plate and a second stiffening plate are fixed to the fixing plate at a position perpendicular to the base plate.
[0006] Preferably, the adjusting frame includes an adjusting plate, an L-shaped rib plate is fixed to the bottom of the adjusting plate, a hanging plate is fixed between the bottom of the adjusting plate and the interior of the L-shaped rib plate, and a through-hole plate is fixed inside the L-shaped rib plate.
[0007] Preferably, a pair of second fixing holes are provided on one side of the base plate, and an adjusting bolt threadedly connected to the second fixing hole is inserted into the second fixing hole, with one end of the adjusting bolt abutting against the adjusting plate.
[0008] Preferably, the bottom plate has through-holes at all four corners of its top, and the adjustment plate also has through-holes at all four corners of its top that mate with the through-holes. The surface of the fixing plate has multiple first fixing holes, and fixing bolts that are threaded to the engine block are inserted into the first fixing holes. Fixing bolts are also inserted into the through-holes and the threaded holes, and fixing nuts for fixing the adjustment plate are fitted on the outer surface of the fixing bolts.
[0009] Preferably, a pair of mounting holes are provided on one side above the suspension plate, and small fixing bolts for fixing the top of the compressor are inserted into the mounting holes, and long bolts for fixing the bottom of the compressor are inserted into the through-hole plate.
[0010] The beneficial effects of this utility model are:
[0011] 1. The fixed frame and the adjusting frame can mount the compressor on the engine body. Through the first and second stiffeners of the fixed frame, the L-shaped stiffeners of the adjusting frame and the suspension plate, the strength and rigidity of the entire device are effectively enhanced, which can ensure that the compressor maintains stable operation.
[0012] 2. The double-groove pulley utilizes the engine's crankshaft power output, transmitting power to the compressor via a belt. This leverages the engine's existing power output, eliminating the need for major engine modifications and reducing installation costs and complexity. Furthermore, the belt tension can be adjusted using adjusting bolts, allowing for flexible adjustment of the compressor's position and improving the overall performance and stability of the device. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the forklift external compressor mounting device proposed in this utility model.
[0014] Figure 2 This is a three-dimensional structural diagram of the mounting bracket for the external compressor mounting device for forklifts proposed in this utility model.
[0015] Figure 3 This is a top view of the mounting bracket of the forklift external compressor mounting device proposed in this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the adjustment frame of the forklift external compressor mounting device proposed in this utility model.
[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the double-groove pulley of the forklift external compressor mounting device proposed in this utility model.
[0018] Figure 6 This is a schematic diagram of the installation structure of the forklift external compressor mounting device proposed in this utility model.
[0019] Figure 7 This is a partially enlarged structural diagram of the forklift external compressor mounting device proposed in this utility model.
[0020] In the diagram: 1. Fixing frame; 2. Adjusting frame; 3. Double groove pulley; 4. Belt; 5. Compressor; 6. Fixing bolt; 7. Fixing nut; 8. Fixing small bolt; 9. Adjusting bolt; 10. Long bolt; 11. Fixing plate; 12. Base plate; 13. First stiffening plate; 14. Second stiffening plate; 15. First fixing hole; 16. Waist-shaped hole; 17. Second fixing hole; 21. Adjusting plate; 22. Suspension plate; 23. L-shaped stiffening plate; 24. Through-hole plate; 25. Threaded hole; 26. Mounting hole. Detailed Implementation
[0021] Reference Figure 1-7 The forklift external compressor mounting device includes an engine, a double groove pulley 3 mounted on the crankshaft of the engine, a mounting bracket 1 fixed on the engine body, an adjusting bracket 2 fixed at the bottom of the mounting bracket 1, a compressor 5 fixed inside the adjusting bracket 2, and a belt 4 sleeved on the pulley of the compressor 5 and the double groove pulley 3.
[0022] The fixing frame 1 includes a fixing plate 11, a base plate 12 is fixed to the bottom of the fixing plate 11, and a first stiffening plate 13 and a second stiffening plate 14 are fixed at the perpendicular positions of the fixing plate 11 and the base plate 12, respectively. The first stiffening plate 13 and the second stiffening plate 14 are irregularly shaped plates, which serve to support and strengthen the frame.
[0023] The adjustment frame 2 includes an adjustment plate 21, an L-shaped stiffener 23 is fixed to the bottom of the adjustment plate 21, a suspension plate 22 is fixed between the bottom of the adjustment plate 21 and the interior of the L-shaped stiffener 23, the suspension plate 22 is a semi-enclosed structure, and a through-hole plate 24 is fixed inside the L-shaped stiffener 23. The through-hole plate 24 is a square body with a long through hole.
[0024] A pair of second fixing holes 17 are provided on one side of the base plate 12. An adjusting bolt 9 is inserted into the second fixing hole 17 and is threadedly connected thereto. One end of the adjusting bolt 9 abuts against the adjusting plate 21.
[0025] The top four corners of the base plate 12 are provided with oblong holes 16, and the top four corners of the adjusting plate 21 are also provided with threaded holes 25 that mate with the oblong holes 16. The surface of the fixing plate 11 is provided with a plurality of first fixing holes 15. Fixing bolts 6 that are threaded to the engine body are inserted into the first fixing holes 15. Fixing bolts 6 are also inserted into the oblong holes 16 and the threaded holes 25. The outer surface of the fixing bolts 6 is fitted with fixing nuts 7 for fixing the adjusting plate 21.
[0026] A pair of mounting holes 26 are provided on one side above the suspension plate 22. Small fixing bolts 8 for fixing the top of the compressor 5 are inserted into the mounting holes 26. Long bolts 10 for fixing the bottom of the compressor 5 are inserted into the through hole plate 24.
[0027] refer to Figure 1-3The mounting bracket 1 is used to securely mount the adjusting bracket 2 and the compressor 5 onto the engine. The mounting plate 11 is connected to the engine block via the first fixing hole 15 using fixing bolts 6, ensuring the stability and reliability of the entire device. The slotted hole 16 on the base plate 12 allows the adjusting bracket 2 to move within a certain range. With the help of the adjusting bolts 9, the length of the adjusting bracket 2 can be adjusted to move it, thereby adjusting the tension of the belt 4 between the compressor 5 and the double-groove pulley 3.
[0028] refer to Figure 1-4 The adjusting bracket 2 is used to adjust and fix the position of the compressor 5. The adjusting plate 21 mates with the slotted hole 16 on the fixing bracket 1 through the threaded hole 25, and is connected and fixed by the fixing bolt 6 and fixing nut 7. The suspension plate 22 adopts a semi-enclosed structure, providing a stable support platform for the compressor 5.
[0029] refer to Figure 1 and Figure 5 A double-grooved pulley 3 is mounted on the engine crankshaft. One groove is used to connect with the engine fan belt, and the other groove is connected to the compressor 5 pulley via belt 4, thus achieving power transmission. This utilizes the engine's existing power output, eliminating the need for major engine modifications and reducing installation costs and complexity.
[0030] refer to Figure 1 and Figure 4 The compressor 5 is mounted on the adjusting frame 2 using small bolts 8, long bolts 10, and nuts. Its top and bottom are secured by a suspension plate 22 and a through-hole plate 24, respectively, ensuring the stability and safety of the compressor 5 during operation.
[0031] When using this device, first, install the mounting bracket 1 onto the engine block using the fixing bolts 6, ensuring a secure and reliable connection. Then, install the double-groove pulley 3 onto the engine crankshaft via a keyway, and install the fan belt into one groove of the double-groove pulley. Next, connect the adjusting bracket 2 to the mounting bracket 1 using the fixing bolts 6 and fixing nuts 7, and install the compressor 5 onto the adjusting bracket 2. Secure the top and bottom of the compressor 5 using the small fixing bolts 8 and the long bolts 10 respectively, ensuring a stable installation. Finally, connect the belt 4 to the pulley of the compressor 5 and the other groove of the double-groove pulley 3. Adjust the length of the adjusting bolts 9 to achieve the appropriate tension of the belt 4, ensuring efficient and reliable power transmission. After adjustment, tighten the fixing nuts 7 to secure the adjusting bracket 2 under the mounting bracket 1, completing the entire installation process.
Claims
1. A forklift truck external mounted compressor mounting arrangement characterised in that: The engine includes a double-groove pulley (3) mounted on the crankshaft of the engine, a fixed frame (1) fixed on the engine body, an adjusting frame (2) fixed at the bottom of the fixed frame (1), a compressor (5) fixed inside the adjusting frame (2), and a belt (4) sleeved on the pulley of the compressor (5) and the outside of the double-groove pulley (3).
2. The walkie stackable compressor mounting arrangement of claim 1, wherein: The fixing frame (1) includes a fixing plate (11), and a base plate (12) is fixed to the bottom of the fixing plate (11). A first stiffener (13) and a second stiffener (14) are respectively fixed at the perpendicular positions of the fixing plate (11) and the base plate (12).
3. The walkie stackable compressor mounting arrangement of claim 1, wherein: The adjustment frame (2) includes an adjustment plate (21), an L-shaped rib plate (23) is fixed at the bottom of the adjustment plate (21), a suspension plate (22) is fixed between the bottom of the adjustment plate (21) and the interior of the L-shaped rib plate (23), and a through-hole plate (24) is fixed inside the L-shaped rib plate (23).
4. The walkie stackable compressor mounting arrangement of claim 2, wherein: A pair of second fixing holes (17) are provided on one side of the base plate (12). An adjusting bolt (9) is threadedly connected to the second fixing hole (17). One end of the adjusting bolt (9) abuts against the adjusting plate (21).
5. The walkie stackable compressor mounting arrangement of claim 4, wherein: The bottom plate (12) has four through-holes (16) at the top corners, and the top four corners of the adjusting plate (21) also have through-holes (25) that mate with the through-holes (16). The surface of the fixing plate (11) has multiple first fixing holes (15). The first fixing holes (15) are filled with fixing bolts (6) that are threaded to the engine body. The through-holes (16) and the threaded holes (25) are also filled with fixing bolts (6). The outer surface of the fixing bolts (6) is fitted with fixing nuts (7) for fixing the adjusting plate (21).
6. The walkie stackable compressor mounting arrangement of claim 3, wherein: A pair of mounting holes (26) are provided on one side above the suspension plate (22). A small fixing bolt (8) for fixing the top of the compressor (5) is inserted into the mounting hole (26). A long bolt (10) for fixing the bottom of the compressor (5) is inserted into the through hole plate (24).