Limiting device for a radiator of a skid loader

Abstract

The utility model discloses a limiting device for radiator of skid loader, including first mounting plate, second mounting plate, first mounting plate and second mounting plate articulate, and first mounting plate is detachably connected with radiator, and second mounting plate is detachably connected with the frame, and be equipped with the lug plate on first mounting plate, still include first fixed link, install the reinforcing plate on second mounting plate, be equipped with first through -hole on reinforcing plate, and first fixed link is passed through lug plate after with reinforcing plate upper end surface abut, and rotate after around articulation point and enter first through -hole. Through utilize rotatable plug -in first fixed link and the cooperation of reinforcing plate through -hole, realize the firm locking of radiator opening state, effectively prevent articulated structure overload deformation and eliminate the security risk in maintenance process, improve radiator opening angle control's accuracy and the reliability of maintenance operation, improve the improper opening angle of existing radiator due to lack of effective limiting, and the problem of easy interference or accidental closure.

Description

Technical Field

[0001] This utility model relates to a limiting device for the radiator of a skid steer loader, belonging to the technical field of engineering machinery. Background Technology

[0002] As a multi-functional construction machine, the radiator assembly of a skid steer loader is a key component ensuring the normal operation of the hydraulic system and engine. Currently, most skid steer loaders use a hinged radiator design, requiring periodic opening for cleaning, maintenance, or replacement of internal components. However, existing radiators generally lack effective limiting structures when opened, leading to numerous problems in practical use.

[0003] On the one hand, due to the lack of limiting devices, operators find it difficult to accurately control the opening angle of the radiator. If the opening angle is insufficient, the radiator cannot be fully opened, resulting in a narrow internal space, which not only affects the cleaning effect but also causes great inconvenience to maintenance operations. On the other hand, if the opening angle is too large, it can easily cause interference between the radiator and adjacent components, or even cause overload, deformation, or damage to the hinge structure, seriously affecting the service life of the radiator.

[0004] Furthermore, existing radiators often fail to maintain a stable position after being opened, and are prone to shaking, swaying, or even accidental closure due to equipment vibration or external disturbances. This not only increases the uncertainty during operation but also poses a potential threat to the safety of maintenance personnel, and can easily interfere with ongoing maintenance or repair work. Summary of the Invention

[0005] Purpose of the invention: To solve the above-mentioned technical problems, this utility model provides a limiting device for the radiator of a skid steer loader. The device adopts a design in which a rotatable first fixed rod passes through the ear plate, abuts against the upper surface of the reinforcing plate, and finally inserts into the first through hole. This achieves precise mechanical limiting and stable maintenance of the radiator opening angle, and solves the problems of difficulty in controlling the opening angle, easy interference with adjacent components, and accidental closure caused by vibration in existing radiators due to the lack of limiting when opening.

[0006] Technical solution: A limiting device for the radiator of a skid steer loader, comprising a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate being hinged together, the first mounting plate being detachably connected to the radiator, the second mounting plate being detachably connected to the vehicle frame, the first mounting plate being provided with a lug plate, and further comprising a first fixing rod and a reinforcing plate mounted on the second mounting plate, the reinforcing plate being provided with a first through hole, the first fixing rod passing through the lug plate and abutting against the upper end face of the reinforcing plate, and rotating around the hinge point and entering the first through hole.

[0007] This invention achieves precise mechanical limiting and stable maintenance of the radiator opening angle by setting an ear plate on the first mounting plate, setting a reinforcing plate with a first through hole on the second mounting plate, and using a rotatable first fixing rod that passes through the ear plate, abuts against the upper surface of the reinforcing plate, and finally inserts into the first through hole. This solves the problems of difficulty in controlling the opening angle, easy interference with adjacent components, and accidental closure caused by vibration in existing radiators due to the lack of limiting when opening. At the same time, it prevents the hinge structure from deforming and being damaged due to overload, and improves the safety and convenience of maintenance operations. When it is necessary to close the radiator, simply disengage the first fixing rod from the first through hole and rotate it in the opposite direction to close the radiator.

[0008] In a preferred embodiment, to ensure the accuracy and reliability of the limiting action, the distance from the axial axis of the first fixed rod to the hinge point is equal to the distance from the axial axis of the first through hole to the hinge point.

[0009] By setting the distance from the axial axis of the first fixed rod to the hinge point to be exactly equal to the distance from the axial axis of the first through hole to the hinge point, the rotation trajectory of the first fixed rod and the position of the first through hole are precisely matched, ensuring that the limit rod can smoothly and without jamming enter the limit hole, thus improving the success rate and durability of the device.

[0010] In a preferred embodiment, to prevent the first fixing rod from accidentally dislodging in the limited state and to enhance locking reliability, the first fixing rod includes a rod body and a first limiting boss disposed at the end of the rod body. The diameter of the first limiting boss is larger than the diameter of the rod body. When the first fixing rod is in the first through hole, the bottom surface of the first limiting boss abuts against the upper end surface of the ear plate.

[0011] By setting a first limiting boss with a larger diameter at the end of the rod, the bottom surface of the limiting boss can abut tightly against the upper surface of the ear plate when the fixed rod is in the first through hole. This achieves axial locking of the rod through mechanical interference, effectively preventing the rod from detaching due to equipment vibration or misoperation, and ensuring the stability and safety of the maintenance process.

[0012] In a preferred embodiment, to facilitate the operator in unlocking and resetting the locked state with one hand and with minimal effort, and to provide a clear tactile feedback, the device further includes a spring fitted onto the first fixed rod and a first pin that penetrates the end of the rod radially. When the first fixed rod abuts against the upper surface of the reinforcing plate, both ends of the spring abut against the lower surface of the ear plate and the upper surface of the first pin, respectively. The bottom surface of the first limiting boss is separated from the upper surface of the ear plate. When the first fixed rod is in the first through hole, one end of the spring abuts against the upper surface of the first pin, and the other end is separated from the lower surface of the ear plate.

[0013] By setting a spring and a first pin, when unlocking is required, the operator pulls the first fixed rod upward and rotates it around the hinge point to the reinforcing plate, where the spring is compressed and stores energy. When limiting is required, the rod rotates above the first through hole and releases, the spring releases energy, and automatically pushes the rod downward to assist it in entering the first through hole to complete the locking. This achieves convenient operation with easy unlocking and assisted locking, improving the efficiency and safety of maintenance.

[0014] In a preferred embodiment, to protect the spring and optimize its stress state, a retaining ring is also fitted on the first fixing rod. The retaining ring is positioned between the spring and the first pin, and the end face of the spring abuts against the retaining ring.

[0015] By adding a retaining ring between the spring and the first pin, the end face of the spring is made to make uniform contact with the retaining ring instead of directly pressing against the pin, thus achieving a smooth transmission of spring force. This prevents the spring from twisting or permanently deforming due to local stress concentration, extends the service life of the elastic element, and ensures the reliability of the device in long-term use.

[0016] In a preferred embodiment, to enhance the structural rigidity and overall load-bearing capacity of the second mounting plate, the second mounting plate is a U-shaped plate, and the reinforcing plate is installed between the two side panels of the U-shaped plate. The side panel of the U-shaped plate away from the radiator is detachably connected to the vehicle frame, and the other side panel is hinged to the second mounting plate.

[0017] By designing it as a U-shaped plate and installing reinforcing plates between its two side panels, a stable box-shaped support structure is formed. This not only improves the bending and torsional resistance of the mounting plate, enabling it to better withstand the weight of the radiator and working load, and facilitates the installation on the frame on the opposite side of the radiator, but also provides a solid installation foundation for achieving precise positioning.

[0018] In a preferred embodiment, to provide additional and more robust hinge support to share the load of the main hinge point, the device further includes a first sleeve, a second sleeve, and a second fixing rod. The first sleeve is mounted on a first mounting plate, and the second sleeve is mounted on the other side wall of a second mounting plate. The second fixing rod passes through both the first and second sleeves. One end of the second fixing rod is provided with a second limiting boss, the diameter of which is larger than the diameter of the second fixing rod body. The other end is provided with a second pin that passes through radially. The bottom surface of the second limiting boss abuts against the top surface of the first sleeve, and the second pin is located below the second sleeve.

[0019] By setting first and second sleeves on the first and second mounting plates respectively, and using a second fixing rod with a second limiting boss and a second pin for through connection, the radiator assembly can rotate smoothly around two hinge points during opening and closing, effectively reducing the load on a single hinge point, avoiding structural deformation, and making the entire movement process smoother and more controllable.

[0020] In a preferred embodiment, in order to maximize the installation and maintenance space around the radiator while ensuring support strength, the first sleeve is disposed on the side of the first mounting plate near the radiator, and the second sleeve is disposed on the other side of the second mounting plate near the vehicle frame.

[0021] By placing the first sleeve on the side of the first mounting plate closer to the radiator and the second sleeve on the side of the second mounting plate closer to the frame, the length of the ear plate is shortened without reducing functionality, avoiding interference problems caused by excessively long ear plates, and making the overall structure more compact and reasonable.

[0022] Beneficial effects: This utility model utilizes the cooperation between the rotatable and pluggable first fixing rod and the through hole of the reinforcing plate to achieve a firm lock in the open state of the radiator, effectively preventing overload deformation of the hinge structure and eliminating safety hazards during maintenance. Furthermore, through elastic auxiliary locking, multiple structural reinforcements, and double hinge point support, it improves operational convenience and structural durability, meeting the requirements of stable limit function, labor-saving operation, and reasonable spatial arrangement under frequent maintenance operations. It enhances the accuracy of radiator opening angle control and the reliability of maintenance operations, and addresses the problems of improper opening angles, interference, or accidental closure caused by the lack of effective limiters in existing radiators. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a structural diagram of the present invention; Figure 2 This is an exploded view of the limiting device of this utility model. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] 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 below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] like Figures 1-2 As shown, a limiting device for the radiator of a skid steer loader includes a first mounting plate 1 and a second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are hinged together. The first mounting plate 1 is detachably connected to the radiator, and the second mounting plate 2 is detachably connected to the vehicle frame. The first mounting plate 1 is provided with a lug plate 3, and also includes a first fixing rod 4 and a reinforcing plate 5 mounted on the second mounting plate 2. The reinforcing plate 5 is provided with a first through hole 51. The first fixing rod 4 passes through the lug plate 3 and abuts against the upper end face of the reinforcing plate 5, and rotates around the hinge point to enter the first through hole 51.

[0029] By setting an ear plate 3 on the first mounting plate 1 and a reinforcing plate 5 with a first through hole 51 on the second mounting plate 2, and by using a rotatable first fixing rod 4 to pass through the ear plate 3 and abut against the upper end face of the reinforcing plate 5 and finally insert into the first through hole 51, the design achieves precise mechanical limiting and stable maintenance of the radiator opening angle. This solves the problems of difficulty in controlling the opening angle, easy interference with adjacent components, and accidental closure caused by vibration caused by the lack of limiting when the existing radiator is opened. At the same time, it prevents the hinge structure from deforming and being damaged due to overload, and improves the safety and convenience of maintenance operations. When it is necessary to close the radiator, it is only necessary to disengage the first fixing rod 4 from the first through hole 51 and rotate it in the opposite direction to close the radiator.

[0030] To ensure the accuracy and reliability of the limiting action, the distance from the axial axis of the first fixed rod 4 to the hinge point is equal to the distance from the axial axis of the first through hole 51 to the hinge point.

[0031] By setting the distance from the axial axis of the first fixed rod 4 to the hinge point to be exactly equal to the distance from the axial axis of the first through hole 51 to the hinge point, the rotation trajectory of the first fixed rod 4 and the position of the first through hole 51 are precisely matched, ensuring that the limiting rod can smoothly and without jamming enter the limiting hole, thereby improving the success rate and durability of the device.

[0032] To prevent the first fixing rod 4 from accidentally coming out in the limited state and to enhance the locking reliability, the first fixing rod 4 includes a rod body 41 and a first limiting boss 42 provided at the end of the rod body 41. The diameter of the first limiting boss 42 is larger than the diameter of the rod body 41. When the first fixing rod 4 is in the first through hole 51, the bottom surface of the first limiting boss 42 abuts against the upper end surface of the ear plate 3.

[0033] By setting a first limiting boss 42 with a larger diameter at the end of the rod 41, the bottom surface of the limiting boss can be tightly abutted against the upper surface of the ear plate 3 when the fixed rod is in the first through hole 51, thereby achieving axial locking of the rod 41 by mechanical interference, effectively preventing the rod 41 from dislodging due to equipment vibration or misoperation, and ensuring the stability and safety of the maintenance operation process.

[0034] To facilitate the operator in unlocking and resetting the locked state with one hand and with minimal effort, and to provide a clear operating feel through elastic feedback, the system also includes a spring 6 sleeved on the first fixing rod 4 body 41 and a first pin 7 that penetrates the end of the rod body 41 radially. When the first fixing rod 4 abuts against the upper end face of the reinforcing plate 5, both ends of the spring 6 abut against the lower end face of the ear plate 3 and the upper end face of the first pin 7, respectively. The bottom surface of the first limiting boss 42 is separated from the upper end face of the ear plate 3. When the first fixing rod 4 is in the first through hole 51, one end of the spring 6 abuts against the upper end face of the first pin 7, and the other end is separated from the lower end face of the ear plate 3.

[0035] By setting up spring 6 and first pin 7, when unlocking is required, the operator pulls the first fixed rod 4 upward and rotates it around the hinge point to the reinforcing plate 5, and spring 6 is compressed and stores energy; when limiting is required, rod 41 rotates to above the first through hole 51 and is released, spring 6 releases energy and automatically pushes rod 41 downward to assist it in entering the first through hole 51 to complete locking, realizing convenient operation of easy unlocking and assisted locking, improving the efficiency and safety of maintenance experience.

[0036] In order to protect the spring 6 and optimize its stress state, a retaining ring 8 is also sleeved on the first fixing rod 4. The retaining ring 8 is disposed between the spring 6 and the first pin 7, and the end face of the spring 6 abuts against the retaining ring 8.

[0037] By adding a retaining ring 8 between the spring 6 and the first pin 7, the end face of the spring 6 is made to make uniform contact with the retaining ring 8 instead of directly pressing against the pin. This achieves smooth force transmission of the spring 6, prevents the spring 6 from twisting or permanently deforming due to local stress concentration, extends the service life of the elastic element, and ensures the reliability of the device in long-term use.

[0038] To enhance the structural rigidity and overall load-bearing capacity of the second mounting plate 2, the second mounting plate 2 is a U-shaped plate. The reinforcing plate 5 is installed between the two side panels of the U-shaped plate. The side panel of the U-shaped plate away from the radiator is detachably connected to the frame, and the other side panel is hinged to the second mounting plate 2.

[0039] By designing it as a U-shaped plate and installing the reinforcing plate 5 between its two side panels, a stable box-shaped support structure is formed. This not only improves the bending and torsional resistance of the mounting plate, enabling it to better withstand the weight of the radiator and working load, and facilitates the installation on the frame on the opposite side of the radiator, but also provides a solid installation foundation for achieving precise positioning. Example 1

[0040] To provide additional and more robust hinge support to share the load of the main hinge point, the system also includes a first sleeve 9, a second sleeve 91, and a second fixing rod 10. The first sleeve 9 is mounted on the first mounting plate 1, and the second sleeve 91 is mounted on the other side wall of the second mounting plate 2. The second fixing rod 10 passes through both the first sleeve 9 and the second sleeve 91. One end of the second fixing rod 10 is provided with a second limiting boss 101, the diameter of which is larger than the diameter of the body 41 of the second fixing rod 10. The other end is provided with a second pin 102 that passes through radially. The bottom surface of the second limiting boss 101 abuts against the top surface of the first sleeve 9, and the second pin 102 is located below the second sleeve 91.

[0041] By setting first and second sleeves 91 on the first and second mounting plates 2 respectively, and using a second fixing rod 10 with a second limiting boss 101 and a second pin 102 for through connection, the radiator assembly can rotate smoothly around two hinge points during opening and closing, effectively reducing the load on a single hinge point, avoiding structural deformation, and making the entire movement process smoother and more controllable. Example 2

[0042] In order to maximize the installation and maintenance space around the radiator while ensuring the support strength, the first sleeve 9 is set on the side of the first mounting plate 1 near the radiator, and the second sleeve 91 is set on the other side of the second mounting plate 2 near the frame.

[0043] By placing the first sleeve 9 on the side of the first mounting plate 1 close to the radiator and placing the second sleeve 91 on the side of the second mounting plate 2 close to the frame, the length of the ear plate 3 is shortened without reducing its functionality, thus avoiding interference problems caused by the excessive length of the ear plate 3 and making the overall structure more compact and reasonable.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A limiting device for a radiator of a skid steer loader, comprising a first mounting plate (1) and a second mounting plate (2), the first mounting plate (1) and the second mounting plate (2) being hinged together, the first mounting plate (1) being detachably connected to the radiator, and the second mounting plate (2) being detachably connected to the vehicle frame, characterized in that: The first mounting plate (1) is provided with an ear plate (3), and also includes a first fixing rod (4) and a reinforcing plate (5) mounted on the second mounting plate (2). The reinforcing plate (5) is provided with a first through hole (51). The first fixing rod (4) passes through the ear plate (3) and abuts against the upper end face of the reinforcing plate (5), and rotates around the hinge point and enters the first through hole (51).

2. The limiting device for the radiator of a skid steer loader according to claim 1, characterized in that: The distance from the axial axis of the first fixed rod (4) to the hinge point is equal to the distance from the axial axis of the first through hole (51) to the hinge point.

3. The limiting device for the radiator of a skid steer loader according to claim 1 or 2, characterized in that: The first fixing rod (4) includes a rod body (41) and a first limiting boss (42) provided at the end of the rod body (41). The diameter of the first limiting boss (42) is greater than the diameter of the rod body (41). When the first fixing rod (4) is in the first through hole (51), the bottom surface of the first limiting boss (42) abuts against the upper end surface of the ear plate (3).

4. The limiting device for the radiator of a skid steer loader according to claim 3, characterized in that: It also includes a spring (6) sleeved on the first fixed rod (4) rod body (41) and a first pin (7) that penetrates the end of the rod body (41) radially. When the first fixed rod (4) abuts against the upper end face of the reinforcing plate (5), the two ends of the spring (6) abut against the lower end face of the ear plate (3) and the upper end face of the first pin (7) respectively. The bottom surface of the first limiting boss (42) is separated from the upper end face of the ear plate (3). When the first fixed rod (4) is in the first through hole (51), one end of the spring (6) abuts against the upper end face of the first pin (7) and the other end is separated from the lower end face of the ear plate (3).

5. The limiting device for the radiator of a skid steer loader according to claim 4, characterized in that: A retaining ring (8) is also fitted on the first fixing rod (4). The retaining ring (8) is located between the spring (6) and the first pin (7). The end face of the spring (6) abuts against the retaining ring (8).

6. The limiting device for the radiator of a skid steer loader according to claim 1, characterized in that: The second mounting plate (2) is a U-shaped plate. The reinforcing plate (5) is installed between the two side panels of the U-shaped plate. The side panel of the U-shaped plate away from the radiator is detachably connected to the frame, and the other side panel is hinged to the second mounting plate (2).

7. The limiting device for the radiator of a skid steer loader according to claim 6, characterized in that: It also includes a first sleeve (9), a second sleeve (91), and a second fixing rod (10). The first sleeve (9) is installed on the first mounting plate (1), and the second sleeve (91) is installed on the other side wall of the second mounting plate (2). The second fixing rod (10) passes through both the first sleeve (9) and the second sleeve (91). One end of the second fixing rod (10) is provided with a second limiting boss (101). The diameter of the second limiting boss (101) is larger than the diameter of the body (41) of the second fixing rod (10). The other end is provided with a second pin (102) that passes through radially. The bottom surface of the second limiting boss (101) abuts against the top surface of the first sleeve (9), and the second pin (102) is located below the second sleeve (91).

8. The limiting device for the radiator of a skid steer loader according to claim 7, characterized in that: The first sleeve (9) is located on the side of the first mounting plate (1) near the radiator, and the second sleeve (91) is located on the other side of the second mounting plate (2) near the frame.

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