Oil path conversion equipment for forklift

By improving the design of the oil storage tank, sealing ring, and fixing mechanism, the problems of delayed hydraulic oil delivery and poor return flow were solved, enabling the hydraulic system to respond quickly and operate stably, improving forklift operating efficiency and equipment lifespan, and ensuring the stability and safety of the equipment in complex environments.

CN223879412UActive Publication Date: 2026-02-06宁波昊天机械有限公司
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Patent Information

Application Number
CN202520682209.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-06
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Traditional forklift hydraulic circuit switching equipment suffers from delayed hydraulic oil delivery and slow response in complex operating environments, failing to quickly reach the designated location. Its poor oil return design affects operating efficiency and equipment lifespan. Furthermore, its poor stability makes it prone to loosening and displacement, leading to oil leakage and abnormal pressure supply.

Method used

The design incorporates multiple oil storage tanks, sealing rings, oil supply pipes, and return pipes, combined with a telescopic rod and push plate structure to ensure rapid hydraulic oil delivery and return. It also features a fixed mechanism for precise engagement with forklifts, and uses threaded rods and rotating handles to adjust the tightness, enhancing equipment stability.

Benefits of technology

It achieves rapid response and stable return of hydraulic oil, improves operating efficiency, extends equipment life, ensures that the equipment is firmly fixed in complex environments, prevents oil leakage, and ensures the safe and efficient operation of forklifts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil way conversion, and discloses an oil way conversion device for a forklift, which comprises a plurality of oil storage tanks, a first sealing ring is fixedly connected between every two adjacent oil storage tanks, and a second sealing ring is fixedly connected to the front side of the outer part of each oil storage tank. Oil conveying pipes are fixedly connected to the front sides of the second sealing rings correspondingly, backflow pipes are fixedly connected between the adjacent oil conveying pipes correspondingly, third sealing rings are fixedly connected to the top ends of the front sides of the oil conveying pipes correspondingly, and supporting rods are fixedly connected between the adjacent oil storage tanks correspondingly. And telescopic rods are fixedly connected to the interiors of the multiple oil conveying pipes. According to the utility model, the telescopic rod and the push plate in the oil delivery pipe enable hydraulic oil to quickly reach a designated position, the operation response speed of the forklift is improved, the return pipe enables the hydraulic oil to smoothly return to the oil tank for circulation, the operation progress and efficiency are accelerated, the service life of equipment is prolonged, and powerful support is provided for stable operation of the forklift.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil circuit conversion technical field especially relates to a forklift oil circuit conversion equipment. BACKGROUND

[0002] The forklift oil circuit conversion equipment is a component in the forklift hydraulic system, undertakes the role of accurate regulation and control of hydraulic oil flow direction and distribution, can guide hydraulic oil into the corresponding working oil circuit according to the needs of different operation links of the forklift, change the communication state of the oil circuit channel, thereby realizing smooth switching of hydraulic oil among different branch oil circuits, and the forklift oil circuit conversion equipment plays an indispensable role, greatly improves the efficiency, flexibility and reliability of forklift operation, and provides solid protection for efficient and stable operation of the forklift.

[0003] With the rapid development of logistics and warehousing and manufacturing industries, forklift operation scenes are increasingly complex and diverse, and the emergence of the forklift oil circuit conversion equipment brings many benefits, can quickly and accurately switch the oil circuit according to actual needs, greatly improves the flexibility of forklift operation, can help the forklift quickly adjust the fork action, efficiently complete the storage and retrieval of goods, reduce the energy consumption of the forklift by accurately controlling the oil, reduce exhaust gas or electric pollution, and provide strong support for the continuous progress of the forklift industry.

[0004] The traditional forklift oil circuit conversion equipment has obvious problems in complex operation environment, the internal structure design is insufficient during oil circuit conversion, so that the hydraulic oil cannot quickly reach the specified position, when the forklift performs emergency lifting and rapid steering operation, the hydraulic oil delivery is delayed and the response is slow, which seriously slows down the operation process and efficiency, and the equipment cannot smoothly guide the hydraulic oil back to the oil tank for circulation in the oil return design, which affects the accuracy of the coordinated operation of the components, and long-term use will aggravate the aging of the hydraulic oil, increase impurities, shorten the overall service life of the hydraulic system, increase maintenance cost and failure risk, and the structure design lacks adaptability to various parts of the forklift, and it is difficult to be firmly fixed at the specified position of the forklift, the equipment is easy to loosen and displace during forklift operation, resulting in unstable oil circuit connection, oil leakage and abnormal pressure supply, which seriously interferes with the normal operation of the forklift and affects the operation efficiency and safety. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a forklift oil circuit conversion equipment, which aims at improving the problem that the hydraulic oil cannot quickly reach the specified position in the prior art, leading to delayed hydraulic oil delivery and slow response, which seriously slows down the operation process and efficiency, and the equipment cannot smoothly guide the hydraulic oil back to the oil tank for circulation in the oil return design, increasing maintenance cost and failure risk.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a forklift oil line conversion equipment, including a plurality of oil storage tanks, the adjacent between a plurality of oil storage tanks Fixedly connected with sealing ring no.

[0007] Further description of the above technical scheme:

[0008] The fixing mechanism includes an oil tank, the left and right sides of the oil tank are fixedly connected between the adjacent oil storage tanks, the front side of the inside of the oil tank is fixedly connected with a fixed plate, the upper and lower ends of the fixed plate are fixedly connected with two embedded plates, the left and right sides of the inside of the oil tank are fixedly connected with a clamping plate, the rear ends of the left and right sides of the oil tank are threadedly connected with two threaded rods, and the sides away from the threaded rods are fixedly connected with a rotating handle.

[0009] Further description of the above technical scheme:

[0010] The left and right sides of the top of the oil storage tank are threadedly connected with buckles, and the front and rear sides of the two buckles are threadedly connected with two screws.

[0011] Further description of the above technical scheme:

[0012] The right end of the front side of the oil storage tank is fixedly connected with two power supply blocks, and the front side of the two power supply blocks is fixedly connected with a power supply indicator light.

[0013] Further description of the above technical scheme:

[0014] The front side of the oil storage tank is fixedly connected with a mounting plate, and the inside of the mounting plate is fixedly connected with a display screen.

[0015] Further description of the above technical scheme:

[0016] The left and right sides of the bottom of the oil storage tank are fixedly connected with a bottom plate, and the adjacent between the two bottom plates is fixedly connected with two support frames.

[0017] Further description of the above technical scheme:

[0018] The outside left front end of the oil storage tank is fixedly connected with a battery box, and the outside of the battery box is fixedly connected with a lamp strip.

[0019] As a further description of the above technical solution:

[0020] The right side of the right top of the oil storage tank is fixedly connected with an oil pressure gauge, and the inside of the oil pressure gauge is fixedly connected with a luminous pointer.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the multiple oil storage tanks guarantee the sealing property of hydraulic oil transmission through the sealing ring, the telescopic rod and the push plate in the oil conveying pipe enable the hydraulic oil to quickly reach the specified position, the response speed of the forklift operation is improved, the backflow pipe enables the hydraulic oil to smoothly backflow to the oil tank for circulation, the oil liquid is prevented from accumulating or aging in the local position, the continuous and efficient operation of the forklift hydraulic system is ensured, the operation process and efficiency are accelerated, the overall service life of the equipment is prolonged, and the forklift stable operation is provided with powerful support.

[0023] 2. In the utility model, the oil tank can be accurately embedded with the specific position of the forklift through the inside fixed plate and the embedded plate at the upper end and the lower end, the clamping plate at the left side and the right side in the oil tank is further combined with the structure of the forklift, the connection stability is enhanced, the fixed tightness is adjusted through the rotating handle on the threaded rod, different forklift installation environments are adapted, the fixed mechanism ensures that the equipment is fixed firmly in the vibration and bumping generated in the forklift driving and operation, displacement and shaking are prevented, and the forklift operation safety and efficient operation are ensured. DRAWINGS

[0024] Figure 1 A perspective view of a forklift oil path conversion equipment is provided for the utility model;

[0025] Figure 2 A fixed mechanism schematic view of a forklift oil path conversion equipment is provided for the utility model;

[0026] Figure 3 A split view of an oil storage tank of a forklift oil path conversion equipment is provided for the utility model;

[0027] Figure 4 A bottom view of a forklift oil path conversion equipment is provided for the utility model;

[0028] Figure 5 An oil tank structure schematic view of a forklift oil path conversion equipment is provided for the utility model.

[0029] LEGEND:

[0030] 1, oil tank; 2, fixing mechanism; 201, oil tank; 202, fixed plate; 203, embedded plate; 204, threaded rod; 205, rotating handle; 206, clamping plate; 3, sealing ring one; 4, sealing ring two; 5, oil pipe; 6, return pipe; 7, sealing ring three; 8, support rod; 9, telescopic rod; 10, push plate; 11, extension rod; 12, rubber plug; 13, buckle; 14, screw; 15, power block; 16, power indicator; 17, mounting plate; 18, display screen; 19, bottom plate; 20, support frame; 21, battery box; 22, light strip; 23, oil pressure gauge; 24, luminous pointer. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Referring to Figure 1 , Figure 3 and Figure 4 , the present application provides an embodiment: a forklift oil line switching device, comprising a plurality of oil tanks 1, a plurality of oil tanks 1 are fixedly connected with sealing ring one 3 between adjacent, the outer front side of a plurality of oil tanks 1 is fixedly connected with sealing ring two 4, prevent hydraulic oil leakage, the front side of a plurality of sealing ring two 4 is fixedly connected with oil pipe 5, a plurality of oil pipes 5 are fixedly connected with return pipe 6 between adjacent, the front top end of a plurality of oil pipes 5 is fixedly connected with sealing ring three 7, a plurality of oil tanks 1 are fixedly connected with support rod 8 between adjacent, a plurality of oil pipes 5 are fixedly connected with telescopic rod 9 inside, the output end of a plurality of telescopic rods 9 is fixedly connected with push plate 10, push a plurality of push plates 10 to push the hydraulic oil by the telescopic movement of a plurality of telescopic rods 9, the front side of a plurality of push plates 10 is fixedly connected with a plurality of extension rods 11, the front top end of a plurality of extension rods 11 is fixedly connected with rubber plug 12, for reducing friction force;

[0033] Specifically, the sealing ring 3 between adjacent oil tanks 1 effectively isolates external impurities and prevents hydraulic oil leakage, ensuring the stability of the hydraulic oil storage environment. The external front sealing ring 4 provides reliable sealing protection for the connection between the oil pipe 5 and the oil tank 1, further enhancing the anti-leakage performance. The oil pipe 5 is responsible for transporting hydraulic oil from the oil tank 1 to the designated location. The return pipe 6 connected between adjacent oil tanks 1 creates a circulating channel for hydraulic oil, allowing it to smoothly return to the oil tank 201 after completing its work, maintaining the good condition of the oil in the system. The sealing ring 3 ensures the sealing of the top end of the oil pipe 5, eliminating potential leakage risks. The support rod 8 between the oil tanks 1 plays a stabilizing role, enhancing the stability of the entire device. The telescopic rod 9 inside the oil pipe 5 pushes the push plate 10 connected to it, thereby achieving rapid pushing of hydraulic oil, allowing it to quickly reach the designated location, greatly improving the response speed of the forklift operation. The multiple extension rods 11 connected to the front side of the push plate 10 and the rubber plug 12 fixed at the top not only reduce the friction of the push plate 10 during movement, ensuring smooth pushing, but also further protect the inner wall of the oil pipe 5, prolonging the service life of the device and providing strong support for the stable operation of the forklift.

[0034] With reference to Figure 1 and Figure 2 The fixing mechanism 2 includes an oil tank 201, which is fixedly connected between adjacent oil tanks 1 on the left and right sides of the oil tank 201. The inside front side of the oil tank 201 is fixedly connected with a fixed plate 202, and the upper and lower ends of the fixed plate 202 are fixedly connected with two embedded plates 203 for firm embedding on the forklift structure. The inside left and right sides of the oil tank 201 are fixedly connected with a clamping plate 206, and the left and right rear ends of the oil tank 201 are threadedly connected with two threaded rods 204. The distal side of the multiple threaded rods 204 is fixedly connected with a rotating handle 205, and the tightness of the threaded rod 204 is adjusted by rotating the rotating handle 205;

[0035] Specifically, the fixed plate 202 inside the front side of the oil tank 201, the two embedded plates 203 fixed at the upper and lower ends respectively, the embedded plate 203 can be tightly embedded in the designated structure part of the forklift, forming a preliminary and stable positioning, effectively preventing the displacement of the equipment in the horizontal direction, and the clamping plate 206 on the left and right sides of the oil tank 201 is further clamped with the relevant structure of the forklift from the side, enhancing the stability in the vertical direction, making the connection between the equipment and the forklift more closely, and the two threaded rods 204 threaded at the rear ends of the left and right sides of the oil tank 201 are matched with the rotating handle 205, and the operator can conveniently adjust the tightness of the threaded rod 204 by rotating the handle 205. In the case of changing forklift operating environment, the tightening force of the fixing mechanism 2 on the forklift can be accurately adjusted according to the actual needs, so that the equipment can be firmly fixed on the forklift in any working condition, ensuring the stable operation of the oil way switching device, and maintaining the efficiency and safety of the whole forklift operation.

[0036] Referring to Figure 1 , Figure 4 and Figure 5 , the left and right sides of the top of the oil tank 1 are threaded with buckles 13, the front and rear sides of the two buckles 13 are threaded with two screws 14, the outer front right end of the oil tank 1 is fixedly connected with two power blocks 15, the front side of the two power blocks 15 is fixedly connected with a power indicator light 16, and the power block 15 provides power supply for the power indicator light 16, and the outer front side of the oil tank 1 is fixedly connected with a mounting plate 17, and the inside of the mounting plate 17 is fixedly connected with a display screen 18 for displaying the remaining amount of hydraulic oil.

[0037] Specifically, the buckles 13 threaded on the left and right sides of the top of the oil tank 1 are further reinforced by the front and rear screws 14, which can firmly fix the related parts and prevent them from loosening or falling off during the vibration process of the forklift operation, ensuring the overall stability of the equipment. At the outer front right end of the oil tank 1, the two power blocks 15 provide stable power supply for the front power indicator light 16, and the power indicator light 16 can directly display the power state of the equipment, so that the operator can know the normal working condition of the equipment at any time, greatly improving the convenience and safety of use. The display screen 18 is fixed on the mounting plate 17 on the outer front side of the oil tank 1, and the operator can observe the data on the display screen 18 to timely grasp the remaining amount of hydraulic oil in the oil tank 1. When the hydraulic oil is insufficient, it can be replenished in time to avoid equipment failure or affect the normal operation of the forklift due to lack of hydraulic oil, ensuring the continuous and stable operation of the forklift oil way switching device.

[0038] Referring to Figure 1 , Figure 4 and Figure 5The bottom left and right sides of the oil storage tank 1 are fixedly connected with bottom plates 19, the adjacent two bottom plates 19 are fixedly connected with two support frames 20, which are used for supporting, the left front end of the outer side of the oil storage tank 1 is fixedly connected with a battery box 21, the outer side of the battery box 21 is fixedly connected with a lamp strip 22, the right side of the top of the oil storage tank 1 is fixedly connected with an oil pressure gauge 23, the inside of the oil pressure gauge 23 is fixedly connected with a luminous pointer 24, and the oil pressure change in the oil tank can be clearly displayed through the luminous pointer 24;

[0039] Specifically, the bottom left and right sides of the oil storage tank 1 are fixedly connected with the bottom plates 19 to disperse the weight of the equipment and ensure that the equipment remains stable when placed, the two support frames 20 connected between the two bottom plates 19 further enhance the supporting effect, can effectively cope with the vibration and shaking generated during forklift operation, prevent the oil storage tank 1 from being displaced or tilted due to uneven stress, and provide reliable protection for the safe operation of the equipment, the left front end of the outer side of the oil storage tank 1 is fixedly connected with the battery box 21 to supply power to the connected lamp strip 22, the lamp strip 22 can provide local illumination in a relatively dark working environment, facilitating the operator to check the surrounding situation of the equipment, and improving the safety and convenience of the operation, and the right side of the top of the oil storage tank 1 is fixedly connected with the oil pressure gauge 23 for monitoring the oil pressure change in the oil tank, and the luminous pointer 24 inside can be clearly observed by the operator even in poor light conditions, so that the operator can master the oil pressure in the oil tank in real time, and when the oil pressure fluctuates abnormally, the operator can take timely measures to avoid affecting the performance of the equipment due to the oil pressure problem, and ensure that the forklift oil way switching equipment works efficiently and stably.

[0040] Working principle: after the equipment is started, the sealing ring one 3 between the adjacent oil storage tanks 1 and the sealing ring two 4 on the outer front side effectively isolate the invasion of external impurities and prevent hydraulic oil leakage, when the forklift needs to perform a specific action, the command triggers the extension rod 9 in the oil delivery pipe 5 to push the push plate 10 connected thereto to move forward, the rubber plugs 12 at the top ends of the multiple extension rods 11 connected to the front side of the push plate 10 reduce friction while protecting the inner wall of the oil delivery pipe 5, under the pushing of the push plate 10, the hydraulic oil in the oil storage tank 1 is rapidly extruded and flows at high speed along the oil delivery pipe 5 to the designated position, and the hydraulic oil after completing the work task is sequentially returned to the oil tank 201 through the return pipe 6 connected between the adjacent oil delivery pipes 5, the sealing ring three 7 at the connection of the top end of the oil delivery pipe 5 prevents the risk of leakage when connected with the external structure, and the support rod 8 between the oil storage tanks 1 can effectively cope with the vibration and impact generated during forklift operation;

[0041] And in the installation phase will be installed near the forklift device designated installation position, the oil tank 201 inside the front side fixed plate 202 upper and lower ends of the fixed connection of the embedded plate 203, the operator will be embedded in the embedded plate 203 aligning the corresponding structure of the forklift and embedded in the horizontal direction for the device provides a preliminary and stable positioning, the oil tank 201 inside the left and right side of the clamping plate 206 from the side with the forklift related structure and each other, so that the device and the forklift connection is more closely, the oil tank 201 left and right side of the rear end of the threaded rod 204 and rotating handle 205, the operator rotates the rotating handle 205 adjusting the degree of tightness of the threaded rod 204, in the road conditions, the work intensity of the work condition, through the adjustment of the threaded rod 204 on the forklift fastening force to ensure that the device is always firmly fixed on the forklift.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made with reference to the foregoing embodiments, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A forklift oil passage switching device comprising a plurality of oil reservoirs (1), characterized by: A plurality of said oil tank (1) between adjacent fixed connection has sealing ring one (3), a plurality of said oil tank (1) outside front side fixedly connected with sealing ring two (4), a plurality of said sealing ring two (4) front side fixedly connected with oil pipe (5), a plurality of said oil pipe (5) between adjacent fixed connection has backflow pipe (6), a plurality of said oil pipe (5) front side top end fixedly connected with sealing ring three (7), a plurality of said oil tank (1) between adjacent fixed connection has support rod (8), a plurality of said oil pipe (5) inside fixedly connected with telescopic rod (9), a plurality of said telescopic rod (9) output end fixedly connected with push plate (10), a plurality of said push plate (10) front side fixedly connected with a plurality of extension rod (11), a plurality of said extension rod (11) front side top end fixedly connected with rubber plug (12), a plurality of said oil tank (1) between adjacent fixed connection has the same fixed mechanism (2), the fixed mechanism (2) is used for fixing the equipment.

2. The oil passage switching device for a fork lift truck according to claim 1, characterized by: The fixed mechanism (2) comprises an oil tank (201), the left and right sides of the oil tank (201) are fixedly connected between a plurality of oil tanks (1), the front side of the inside of the oil tank (201) is fixedly connected with a fixed plate (202), the upper and lower ends of the fixed plate (202) are fixedly connected with two embedded plates (203), the left and right sides of the inside of the oil tank (201) are fixedly connected with a clamping plate (206), the left and right rear ends of the oil tank (201) are fixedly connected with two threaded rods (204), and the sides away from the threaded rods (204) are fixedly connected with a rotating handle (205).

3. A fork truck oil circuit switching device according to claim 2 wherein: The left and right sides of the top of the oil tank (1) are fixedly connected with a buckle (13), and the front and rear sides of the two buckles (13) are fixedly connected with two screw nails (14).

4. The oil passage switching device for a fork lift truck according to claim 2, characterized by: The front right end of the outside of the oil tank (1) is fixedly connected with two power supply blocks (15), and the front sides of the two power supply blocks (15) are fixedly connected with power supply indicator lights (16).

5. The oil passage switching device for a fork lift truck according to claim 2, characterized by: The front side of the outside of the oil tank (1) is fixedly connected with a mounting plate (17), and the inside of the mounting plate (17) is fixedly connected with a display screen (18).

6. The oil passage switching device for a fork lift truck according to claim 2, characterized by: The left and right sides of the bottom of the oil tank (1) are fixedly connected with a bottom plate (19), and the adjacent between the two bottom plates (19) is fixedly connected with two support frames (20).

7. The oil passage switching device for a fork lift truck according to claim 2, characterized by: The left side of the outside of the oil tank (1) is fixedly connected with a battery box (21), and the outside of the battery box (21) is fixedly connected with a lamp strip (22).

8. The oil passage switching device for a fork lift truck according to claim 1, characterized by: The right side of the right side of the oil tank (1) is fixedly connected with an oil pressure gauge (23), and the inside of the oil pressure gauge (23) is fixedly connected with a luminous pointer (24).