Preset opening and closing angle structure of movable radiator of loading machine

By installing an angle limiter between the loader radiator and the chassis, and using a combination of pins and springs, the preset opening and closing angle of the radiator can be achieved, solving the problems of high maintenance difficulty and easy damage to the hoses in loaders, and improving maintenance convenience and hose lifespan.

CN224031786UActive Publication Date: 2026-03-24LONKING SHANGHAI ROAD MACHINERY MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Loaders are difficult to maintain, and their hoses are prone to damage, further increasing the difficulty of maintenance.

Method used

A preset opening and closing angle structure for a loader's movable radiator is designed. By setting an angle limiter between the radiator and the frame, and using a combination of pins and springs, the radiator and the frame are temporarily fixed together, and the length of the hose is precisely controlled.

Benefits of technology

It reduces the overall maintenance difficulty and time of the loader, increases the service life of the hose, and avoids hose waste and damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a preset opening and closing angle structure of a movable radiator of a loader. The preset opening and closing angle structure comprises a frame, the engine complete machine is connected to the frame; the radiator is rotatably connected with the frame; the loader rear cabin door is connected with the radiator; the rubber pipe is connected with the whole engine and the radiator; wherein an angle limiter is arranged at the joint of the radiator and the frame, when the radiator rotates around the frame by taking the pin shaft as the center to reach a preset angle of the angle limiter, the relative position between the radiator and the frame is temporarily fixed, and the length of the rubber pipe is arranged according to the preset angle. The opening and closing angle can be easily and temporarily positioned at 40 degrees, the use length and the cutting length of the rubber tube can be accurately controlled under the condition that the angle is met, waste of rubber tube materials can be effectively avoided, the rubber tube cannot be extruded, twisted and the like, damage cannot be caused, the service life of the rubber tube is prolonged, and the service life of the rubber tube is prolonged. And meanwhile, the overall maintenance difficulty and maintenance time of the loader are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to loader technical field especially is related to a preset opening and closing angle structure of loader movable radiator. BACKGROUND

[0002] At present, along with the more and more extensive application of loader in our country, the layout scheme of radiator is also required to be diversified while meeting the convenience of maintenance. At present, the layout of loader radiator is mainly fixed, and the radiator is installed through rigid connection with the frame by bolts. Because of its simple structure, it is convenient to arrange and design, and is adopted by most host factories, but its disadvantage is that it needs to be disassembled and assembled during maintenance, and the maintenance of the power system of the loader is difficult and time-consuming. And the length of the rubber pipe arranged between the engine and the radiator in the loader is not accurately controlled, which is easy to be too long. When the rear hatch of the loader is closed, the rubber pipe is easy to be affected by bending stress, and the rubber pipe is easy to be damaged, which further leads to the need for maintenance. SUMMARY

[0003] The technical problem solved by the utility model is that the maintenance of the loader is difficult, and the rubber pipe is easy to be damaged, which further increases the difficulty of maintenance.

[0004] To solve the above technical problems, the technical scheme of the utility model provides a preset opening and closing angle structure of a movable radiator of a loader, which comprises:

[0005] A frame;

[0006] An engine, connected to the frame;

[0007] A radiator, rotatably connected to the frame through a pin shaft;

[0008] A rear hatch of the loader, connected to the radiator; and

[0009] A rubber pipe, connecting the engine and the radiator; wherein

[0010] An angle limiter is arranged at the connection between the radiator and the frame, and when the radiator rotates around the frame with the pin shaft as the center to the preset angle of the angle limiter, the relative position between the radiator and the frame is temporarily fixed, and the length of the rubber pipe is arranged according to the preset angle.

[0011] Optionally, the preset angle is 40°.

[0012] Optionally, the angle limiter is a pin, which is connected to the radiator through a spring.

[0013] Optionally, the frame has a positioning groove, the radiator is provided with a mounting through hole, and the head of the pin passes through the mounting through hole and contacts the positioning groove.

[0014] Optionally, a spring is further connected between the pin and the radiator, and the head of the pin is telescopically contacted with or separated from the positioning groove by the elastic force of the spring.

[0015] Optionally, the head of the pin is semispherical, and the positioning groove is a semicircular groove, and the pin and the positioning groove are in sliding contact or separation through the semicircular structure.

[0016] Optionally, the pin has a pin cap, the maximum outer diameter of the pin cap is greater than the diameter of the pin, and the spring is sleeved outside the pin and located between the pin cap and the radiator.

[0017] Optionally, the loader rear hatch is detachably connected with the radiator.

[0018] Optionally, the frame comprises a base and a pair of side plates, the two side plates are symmetrically connected on two sides of the base, the side plates are provided with door locks, the engine is mounted on the surface of the base, and when the radiator is rotated to 0° around the frame, the loader rear hatch is connected with the side plates through the door locks and forms a closed state.

[0019] Optionally, the radiator is connected with the side plates without the door locks through the pin shaft and the pin.

[0020] The beneficial effects of the technical scheme of the utility model are as follows:

[0021] The preset opening and closing angle structure of the utility model makes the opening and closing angle of the radiator and the engine easy to be temporarily positioned at 40°, the use length and the cutting length of the rubber pipe can be accurately controlled under the condition of meeting the angle, the waste of the rubber pipe material can be effectively avoided, and when the loader rear hatch is closed, the length of the rubber pipe is accurately controlled, the rubber pipe will not be squeezed and twisted, and will not be damaged, which not only prolongs the service life of the rubber pipe, but also reduces the overall maintenance difficulty and maintenance time of the loader. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a connection structure diagram of an engine, a radiator and a rubber pipe in an embodiment of the utility model;

[0023] Figure 2 FIG. 2 is a schematic diagram of a preset angle in an embodiment of the utility model;

[0024] Figure 3 FIG. 3 is a general assembly structure diagram in an embodiment of the utility model;

[0025] Figure 4 Figure 1 is a structural schematic view of the connection between the radiator and the frame in the embodiment of the present application.

[0026] In the drawings: 1, engine whole machine, 2, rubber pipe, 3, radiator, 4, frame, 5, pin shaft, 6, loader rear hatch, 7, door lock, 8, pin, 9, spring, 10, mounting through hole, 11, positioning groove, 41, base, 42, side plate, 81, head, 82, peg cap. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the present application.

[0028] In the description of the present application, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connected", "connected", "fixed" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] Please see Figure 1 and Figure 3 The diagram illustrates a preset opening and closing angle structure for a loader's movable radiator according to an embodiment. The radiator includes a frame 4; an engine unit 1 connected to the frame 4; a radiator 3 rotatably connected to the frame 4 via a pin 5; a loader rear hatch 6 connected to the radiator 3; and a hose 2 connecting the engine unit 1 and the radiator 3. An angle limiter is provided at the connection between the radiator 3 and the frame 4. When the radiator 3 rotates around the frame 4 about the pin 5 to a preset angle of the angle limiter, the relative position between the radiator 3 and the frame 4 is temporarily fixed. The length of the hose 2 is arranged according to the preset angle.

[0033] In this embodiment, as Figure 2 As shown, the preset angle is 40°.

[0034] In this embodiment, as Figure 4 As shown, the angle limiter is pin 8, which is connected to the radiator 3 via spring 9.

[0035] In this embodiment, the frame 4 has a positioning groove 11, the radiator 3 has a mounting through hole 10, and the head 81 of the pin 8 passes through the mounting through hole 10 and contacts the positioning groove 11.

[0036] In this embodiment, a spring 9 is also connected between the pin 8 and the radiator 3. The head 81 of the pin 8 can extend and retract to contact or separate from the positioning groove 11 through the elastic force of the spring 9.

[0037] In this embodiment, the head 81 of the pin 8 is hemispherical, and the positioning groove 11 is a semi-circular groove. The pin 8 and the positioning groove 11 slide in contact or separate through the semi-circular structure.

[0038] In this embodiment, the pin 8 has a pin head 82, the maximum outer diameter of the pin head 82 is greater than the diameter of the pin 8, and the spring 9 is sleeved on the outside of the pin 8 and located between the pin head 82 and the radiator 3.

[0039] In this embodiment, the loader rear hatch 6 is detachably connected to the radiator 3.

[0040] In the embodiment, the frame 4 comprises a base 41 and a pair of side plates 42 symmetrically connected to the two sides of the base 41, the side plates 42 are provided with door locks 7, the engine assembly 1 is installed on the surface of the base 41, and the loader rear hatch 6 is connected with the side plates 42 through the door locks 7 and forms a closure when the radiator 3 rotates to 0° around the frame 4.

[0041] In the embodiment, the radiator 3 is connected with the side plates 42 without door locks through the pin shaft 5 and the pin 8.

[0042] The characteristics and functions of the present application will be further understood through the following description.

[0043] The preset opening and closing angle structure of the embodiment mainly solves the problem that the existing loader system itself has a high disassembly and maintenance difficulty, and the rubber tube is easily damaged by being squeezed, twisted and deformed during the closing process of the loader rear hatch, which further increases the maintenance difficulty and the maintenance time.

[0044] Therefore, in order to improve the maintenance and diagnosis convenience of the power system, reduce the maintenance difficulty and save the maintenance time, the present application provides a loader opening and closing 40° movable radiator arrangement structure, which improves the maintenance convenience of the power system, reduces the pipeline arrangement redundancy, improves the material and loader arrangement space utilization rate. Mainly by setting an angle limiter mainly composed of a pin between the radiator and the frame, setting a positioning groove on the side plate of the frame, drilling an installation through hole on the radiator, setting a spring outside the pin, and contacting the head of the pin to the positioning groove through the installation through hole, the two ends of the spring can be firmly connected with the radiator and the pin cap through welding.

[0045] The positioning groove is a semicircular structure, and the head of the pin is a semispherical structure, so when the radiator rotates around the side plate of the frame with the pin shaft as the center, the pin is inserted into the positioning groove when it is rotated to 40°, so that the radiator and the frame are temporarily fixed at the position of 40°. The connection rubber tube is arranged at the position of 40° design opening and closing, which can greatly avoid the waste of rubber tube material (precise control of the use length and cutting length of the rubber tube) and the bending stress influence on the rubber tube caused by the closing of the loader rear hatch (if the length of the rubber tube is too long, the rubber tube is easily squeezed when the hatch is closed, causing the rubber tube to be damaged).

[0046] In summary, the preset opening and closing angle structure makes the opening and closing angle of the radiator and the engine whole machine easy to be temporarily positioned at 40°, the use length and the cutting length of the rubber pipe can be accurately controlled under the condition of meeting the angle, the waste of the rubber pipe material can be effectively avoided, and when the rear cabin door of the loader is closed, since the length of the rubber pipe is accurately controlled, the rubber pipe will not be squeezed, twisted and damaged, not only the service life of the rubber pipe is improved, but also the overall maintenance difficulty and maintenance time of the loader are reduced.

[0047] The above is only the preferred embodiment of the utility model, and does not limit the implementation and protection scope of the utility model, and those skilled in the art should realize that any equivalent replacement and obvious change obtained by applying the utility model specification and drawing contents should be included in the protection scope of the utility model.

Claims

1. A pre-set opening angle structure of a movable radiator of a loader, characterized in that, The utility model relates to a kind of loader, including: Frame; Engine, connected to the frame; Radiator, rotatably connected with the frame by pin shaft; Loader rear hatch, connected with the radiator; And Rubber tube, connecting the engine and the radiator; Wherein The radiator is provided with angle limiter at the connection with the frame, when the radiator is rotated around the frame to the preset angle of the angle limiter with the pin shaft as center, the relative position between the radiator and the frame is temporarily fixed, and the length of the rubber tube is arranged according to the preset angle.

2. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 1, characterized in that, The preset angle is 40 °.

3. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 2, characterized in that, The angle limiter is pin, connected to the radiator by spring.

4. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 3, characterized in that, The frame has positioning groove, the radiator is provided with mounting through-hole, the head of the pin passes through the mounting through-hole and contacts the positioning groove.

5. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 4, characterized in that, Spring is further connected between the pin and the radiator, the head of the pin is elastically contacted or separated with the positioning groove by the elastic force of the spring.

6. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 5, characterized in that, The head of the pin is semispherical, the positioning groove is semicircular groove, and the pin and the positioning groove are slidably contacted or separated by semicircular structure.

7. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 6, characterized in that, The pin has pin cap, the maximum outer diameter of the pin cap is greater than the diameter of the pin, and the spring is sleeved outside the pin and located between the pin cap and the radiator.

8. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 7, characterized in that, The loader rear hatch is detachably connected with the radiator.

9. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 8, characterized in that, The frame includes a base and a pair of side plates, the two side plates are symmetrically connected on both sides of the base, the side plate is provided with door lock, the engine is installed on the surface of the base, and the loader rear hatch is connected with the side plate by the door lock and forms closed when the radiator is rotated to 0 ° around the frame.

10. The pre-set opening and closing angle structure of a mobile radiator of a loader according to claim 9, characterized in that, The radiator is connected with the side plate without the door lock by the pin shaft and the pin.