Forklift cylinder gliding distance detection device

By designing the sliding distance detection device of the forklift cylinder, and using the combination of slide rod and infrared sensor, the problem of low cylinder sliding detection efficiency is solved, and the precise monitoring of the cylinder status is achieved.

CN222668566UActive Publication Date: 2025-03-25CHUZHOU KANGDA FORKLIFT ACCESSORIES MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421503123.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-03-25
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

Electric forklift oil cylinders are prone to oil seal loss and automatic drop in oil leakage and lack of effective detection methods during long-term work.

Method used

A forklift cylinder sliding distance detection device is designed, and the precise measurement of the sliding distance of the cylinder is achieved through the combination of a fixed cylinder, a slide rod, an infrared transmitter and an infrared receiver.

Benefits of technology

This device can effectively detect the sliding distance of the forklift oil cylinder, improve detection efficiency, and meet the requirements of accurate monitoring of the oil cylinder status.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222668566U_ABST
    Figure CN222668566U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of forklift oil cylinder detection, in particular to a forklift oil cylinder gliding distance detection device which comprises a fixed cylinder, an oil cylinder body is arranged on one side of the fixed cylinder, a second bent rod is fixedly connected to the bottom end of the fixed cylinder, a sliding rod is slidably connected to the interior of the fixed cylinder, a fixed seat is arranged at the top end of the sliding rod, and the fixed seat is fixedly connected with the oil cylinder body. A first bent rod is fixedly connected to the outer wall of the top of the fixing base, positioning assemblies are arranged at one end of the first bent rod and one end of the second bent rod, and the first bent rod and the second bent rod are fixedly connected with the oil cylinder body through the positioning assemblies. According to the utility model, the device can be directly fixed on the outer wall of the forklift oil cylinder, meanwhile, the oil cylinder body can be effectively subjected to gliding detection, the detection efficiency of people on the oil cylinder body is improved, and in the detection process, the infrared transmitter and the infrared receiver are matched, so that the detection accuracy is improved. Therefore, the descending distance of the oil cylinder body can be accurately measured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of forklift oil cylinder detection, in particular to a forklift oil cylinder sliding distance detection device. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device.

[0003] At present, common fault problems will occur during the long-term operation of the electric forklift cylinder, that is, the oil leakage at the oil return pipe of the lifting cylinder causes the automatic decline and other problems. The cause is the loss of the oil seal between the lifting cylinder and the piston rod and other quality problems. Therefore, in order to ensure that the forklift cylinder can work stably, it is necessary to regularly detect the forklift cylinder. Therefore, a forklift cylinder sliding distance detection device is urgently needed to solve the above problems. Utility Model Content

[0004] Based on the deficiencies in the prior art mentioned in the above background technology, the utility model provides a forklift oil cylinder sliding distance detection device.

[0005] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A forklift cylinder sliding distance detection device comprises a fixed cylinder, a cylinder body is arranged on one side of the fixed cylinder, a second bent rod is fixedly connected to the bottom end of the fixed cylinder, a sliding rod is slidably connected to the inside of the fixed cylinder, a fixed seat is arranged on the top of the sliding rod, a first bent rod is fixedly connected to the top outer wall of the fixed seat, a positioning assembly is arranged at one end of the first bent rod and one end of the second bent rod, and the first bent rod and the second bent rod are fixedly connected to the cylinder body via the positioning assembly.

[0007] As a further solution of the utility model: the circumferential outer wall of the fixed cylinder is fixedly connected to the second connecting plate, the circumferential outer wall of the fixed seat is fixedly connected to the first connecting plate, the top outer wall of the second connecting plate is fixedly connected to the infrared transmitter, and the bottom outer wall of the first connecting plate is fixedly connected to the infrared receiver.

[0008] As a further solution of the utility model: the top outer wall of the second connecting plate is fixedly connected to a shell, and one side outer wall of the shell is fixedly connected to a control panel.

[0009] As a further solution of the utility model: a through hole is opened on the top outer wall of the shell, and infrared rays pass through the inside of the through hole.

[0010] As a further solution of the utility model: a mounting groove is provided on the bottom outer wall of the fixing seat, a bearing seat is fixedly connected inside the mounting groove, and one end of the sliding rod is fixedly connected inside the bearing seat.

[0011] As a further solution of the utility model: one end of the sliding rod away from the bearing seat is fixedly connected with a counterweight block, and the counterweight block is arranged inside the fixing tube.

[0012] As a further solution of the utility model: the positioning assembly includes a first fixing ring and a second fixing ring, both ends of the first fixing ring and the second fixing ring are fixedly connected with extension plates, the outer walls of one side of the extension plates at both ends of the second fixing ring are fixedly connected with fixing screws, and positioning holes are opened on the outer walls of one side of the extension plates at both ends of the first fixing ring, one end of the fixing screw passes through the inside of the positioning hole, and the circumferential outer wall of the fixing screw is threadedly connected with a fixing nut.

[0013] After adopting the above structure, the utility model has the following advantages compared with the prior art: the device can be directly fixed on the outer wall of the forklift cylinder, and at the same time, the downward sliding of the cylinder body can be effectively detected, thereby improving people's detection efficiency of the cylinder body, and during the detection process, the infrared transmitter and the infrared receiver cooperate to accurately measure the distance that the cylinder body has descended, thereby meeting people's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the working structure of the utility model in conjunction with the oil cylinder body.

[0016] Figure 3 It is a semi-sectional structural schematic diagram of the utility model.

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1. fixing cylinder; 2. sliding rod; 3. fixing seat; 4. first connecting plate; 5. cylinder body; 6. positioning assembly; 6001. first fixing ring; 6002. second fixing ring; 6003. extension plate; 6004. fixing screw; 6005. fixing nut; 7. first bent rod; 8. second connecting plate; 9. infrared transmitter; 10. housing; 11. through hole; 12. second bent rod; 13. control panel; 14. counterweight; 15. infrared receiver; 16. mounting groove; 17. bearing seat. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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 on this patent.

[0022] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0023] See also Figure 1 to Figure 4In an embodiment of the utility model, a forklift cylinder sliding distance detection device includes a fixed cylinder 1, a cylinder body 5 is arranged on one side of the fixed cylinder 1, a second bent rod 12 is fixedly connected to the bottom end of the fixed cylinder 1, a sliding rod 2 is slidably connected inside the fixed cylinder 1, a fixed seat 3 is arranged on the top of the sliding rod 2, a first bent rod 7 is fixedly connected to the top outer wall of the fixed seat 3, one end of the first bent rod 7 and one end of the second bent rod 12 are both provided with a positioning assembly 6, the first bent rod 7 and the second bent rod 12 are both fixedly connected to the cylinder body 5 through the positioning assembly 6, the first bent rod 7 and the second bent rod 12 are both L-shaped, thereby ensuring that the sliding rod 2 can always remain parallel to the cylinder body 5, thereby improving the accuracy of the detection result.

[0024] Preferably, the circumferential outer wall of the fixed cylinder 1 is fixedly connected to the second connecting plate 8, the circumferential outer wall of the fixed seat 3 is fixedly connected to the first connecting plate 4, the top outer wall of the second connecting plate 8 is fixedly connected to the infrared transmitter 9, and the bottom outer wall of the first connecting plate 4 is fixedly connected to the infrared receiver 15. The staff starts the cylinder body 5 to make it reach the longest extension and stand for a certain period of time. If the cylinder body 5 fails, it will cause the output end to slide down and drive the slide bar 2 to move together. In the process of the slide bar 2 sliding down, the infrared transmitter 9 and the infrared receiver 15 cooperate to accurately measure the distance the cylinder body 5 has fallen, and effectively perform an effective downward detection on the cylinder body 5, thereby improving people's detection efficiency of the cylinder body 5 and meeting people's usage needs.

[0025] Preferably, the top outer wall of the second connecting plate 8 is fixedly connected to the shell 10 , and the outer wall of one side of the shell 10 is fixedly connected to the control panel 13 .

[0026] Preferably, a through hole 11 is formed on the top outer wall of the housing 10 , and infrared rays pass through the through hole 11 .

[0027] Preferably, a mounting groove 16 is formed on the bottom outer wall of the fixing seat 3 , a bearing seat 17 is fixedly connected inside the mounting groove 16 , and one end of the sliding rod 2 is fixedly connected inside the bearing seat 17 .

[0028] Preferably, one end of the slide rod 2 away from the bearing seat 17 is fixedly connected to a counterweight block 14, and the counterweight block 14 is arranged inside the fixed tube 1 to ensure that the slide rod 2 can stably descend with the cylinder body 5 when the cylinder body 5 automatically descends due to oil leakage.

[0029] Preferably, the positioning assembly 6 includes a first fixing ring 6001 and a second fixing ring 6002, both ends of the first fixing ring 6001 and the second fixing ring 6002 are fixedly connected with an extension plate 6003, the outer wall of one side of the extension plate 6003 located at both ends of the second fixing ring 6002 is fixedly connected with a fixing screw 6004, and the outer wall of one side of the extension plate 6003 located at both ends of the first fixing ring 6001 is provided with a positioning hole, one end of the fixing screw 6004 passes through the inside of the positioning hole, and the circumferential outer wall of the fixing screw 6004 is threadedly connected with a fixing nut 6005, and the device can be fastened to the outer wall of the cylinder body 5 through the cooperation between multiple groups of fixing screws 6004 and fixing nuts 6005.

[0030] Working principle: When the staff needs to inspect the forklift cylinder, the second bent rod 12 and one end of the first bent rod 7 can be fixed on the outer wall and the output end of the cylinder body 5 respectively through two sets of positioning components 6, so that the device can always remain stable when inspecting the cylinder body 5. Then the staff starts the cylinder body 5 to make it reach the longest elongation and let it stand for a certain period of time. If a failure occurs in the cylinder body 5, it will cause the output end to slide down and drive the slide bar 2 to move together. During the sliding movement of the slide bar 2, the infrared transmitter 9 and the infrared receiver 15 cooperate to accurately measure the distance that the cylinder body 5 has fallen, and effectively perform an effective downward sliding detection on the cylinder body 5, thereby improving people's detection efficiency of the cylinder body 5 and meeting people's usage needs.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A forklift oil cylinder sliding distance detection device, comprising a fixing cylinder (1), characterized in that: A cylinder body (5) is provided on one side of the fixed cylinder (1); a second bent rod (12) is fixedly connected to the bottom end of the fixed cylinder (1); a sliding rod (2) is slidably connected to the interior of the fixed cylinder (1); a fixed seat (3) is provided at the top end of the sliding rod (2); a first bent rod (7) is fixedly connected to the top outer wall of the fixed seat (3); a positioning assembly (6) is provided at one end of the first bent rod (7) and one end of the second bent rod (12); the first bent rod (7) and the second bent rod (12) are fixedly connected to the cylinder body (5) via the positioning assembly (6).

2. A forklift cylinder sliding distance detection device according to claim 1, characterized in that: The circumferential outer wall of the fixed cylinder (1) is fixedly connected to a second connecting plate (8), the circumferential outer wall of the fixed seat (3) is fixedly connected to a first connecting plate (4), the top outer wall of the second connecting plate (8) is fixedly connected to an infrared transmitter (9), and the bottom outer wall of the first connecting plate (4) is fixedly connected to an infrared receiver (15).

3. A forklift oil cylinder sliding distance detection device according to claim 2, characterized in that: The top outer wall of the second connecting plate (8) is fixedly connected to a housing (10), and the outer wall of one side of the housing (10) is fixedly connected to a control panel (13).

4. A forklift oil cylinder sliding distance detection device according to claim 3, characterized in that: A through hole (11) is provided on the top outer wall of the shell (10), and infrared rays pass through the inside of the through hole (11).

5. A forklift oil cylinder sliding distance detection device according to claim 4, characterized in that: The bottom outer wall of the fixed seat (3) is provided with a mounting groove (16), the interior of the mounting groove (16) is fixedly connected to a bearing seat (17), and one end of the sliding rod (2) is fixedly connected to the interior of the bearing seat (17).

6. A forklift oil cylinder sliding distance detection device according to claim 5, characterized in that: One end of the sliding rod (2) away from the bearing seat (17) is fixedly connected to a counterweight block (14), and the counterweight block (14) is arranged inside the fixed cylinder (1).

7. A forklift oil cylinder sliding distance detection device according to claim 6, characterized in that: The positioning assembly (6) comprises a first fixing ring (6001) and a second fixing ring (6002), wherein both ends of the first fixing ring (6001) and the second fixing ring (6002) are fixedly connected with extension plates (6003), and the outer walls of one side of the extension plates (6003) at both ends of the second fixing ring (6002) are fixedly connected with fixing screws (6004), and the outer walls of one side of the extension plates (6003) at both ends of the first fixing ring (6001) are provided with positioning holes, and one end of the fixing screw (6004) passes through the interior of the positioning hole, and the circumferential outer wall of the fixing screw (6004) is threadedly connected with a fixing nut (6005).