Safety device for preventing misoperation of hydraulic valve for skid loader

Abstract

The utility model provides a hydraulic valve misoperation prevention safety device for a skid steer loader, which comprises a pedal, a safety cover, a support, a hydraulic valve, a nut and a bolt, the hydraulic valve is mounted at the bottom of the support, the pedal and a connecting rod are mounted at the upper part of the hydraulic valve, and one end of the safety cover is hinged and fixed on the support through the bolt and the nut. And the other end of the safety cover is connected with the hydraulic valve through a locking structure. The locking structure is flexible and reliable, various forms and combination modes such as buckling, plug pin, rotation and electromagnetism are provided, and the locking structure can adapt to different operation scenes according to needs.

Description

Safety device for skid steer loaders to prevent hydraulic valve misoperation Technical Field

[0001] This utility model relates to the field of skid steer loader technology, and more specifically, to a safety device for preventing the misoperation of hydraulic valves in skid steer loaders. Background Technology

[0002] Currently, existing anti-misoperation technologies for skid steer loaders' hydraulic valves have several shortcomings. First, they lack physical protection, leaving the hydraulic valve operating components exposed and prone to accidental triggering due to accidental contact with limbs or equipment vibration, potentially leading to safety accidents. Second, the locking structures are often simplistic or unreliable; for example, relying solely on buckles is prone to wear and failure, single pins may loosen due to vibration, some may even lack forced locking, or the operation is cumbersome and inefficient. Third, they have poor adaptability; mechanical locking is prone to corrosion and dust accumulation in harsh environments, and the lack of electronic locking makes it difficult to integrate with the equipment's safety system. Fourth, emergency design is inadequate; rigid locking cannot be quickly unlocked in emergencies such as equipment failure. Summary of the Invention

[0003] To overcome the above deficiencies, this utility model provides a three-in-one slag cleaning machine that overcomes or at least partially solves the above technical problems.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a safety device for preventing the misoperation of hydraulic valves in skid steer loaders, including a pedal, a safety cover, a bracket, a hydraulic valve, nuts, and bolts. The hydraulic valve is installed at the bottom of the bracket, and the pedal and connecting rod are installed on the upper part of the hydraulic valve. One end of the safety cover is hinged to the bracket by bolts and nuts, and the other end of the safety cover is connected to the hydraulic valve by a locking structure.

[0006] Furthermore, the locking structure is a snap-locking structure, consisting of snaps set on the edge of the safety cover and corresponding blocks installed on the hydraulic valve. The elastic deformation of the snaps and the cooperation of the blocks prevent the safety cover from being opened.

[0007] Furthermore, the locking structure is a pin-type locking structure, including a pin installed on the safety cover and a pin hole provided on the hydraulic valve, with the pin inserted into the pin hole.

[0008] Furthermore, the locking structure is a rotary locking structure, consisting of a rotary latch, a locking groove, and a rotating shaft installed at the connection between the safety cover and the hydraulic valve. The rotary latch rotates around the rotating shaft and engages with the locking groove.

[0009] Furthermore, the locking structure is an electromagnetic locking structure, including an electromagnetic lock body installed on the safety cover, an armature set on the hydraulic valve, and related control circuits and power supplies. The control circuit energizes the electromagnetic lock body to generate a magnetic field, which attracts the armature, and the safety cover is tightly attached to the hydraulic valve.

[0010] Furthermore, the above-mentioned various locking structures can be used in combination, employing snap-on and pin-type structures, or a combination of pin-type and electromagnetic structures.

[0011] This utility model of a safety device for preventing hydraulic valve misoperation in skid steer loaders offers several significant advantages: First, it provides excellent physical protection. By covering the hydraulic valve with a safety cover, it eliminates accidental triggering caused by accidental contact with limbs or dropped tools, effectively reducing the risk of accidents and damage caused by abnormal equipment operation. Second, its locking structure is flexible and reliable, offering various forms and combinations such as latches, pins, rotations, and electromagnetic locks to adapt to different operating scenarios. Mechanical locking is suitable for harsh environments, while electromagnetic locks facilitate linkage with the equipment's safety system; combined structures provide multiple layers of protection, avoiding problems caused by wear, loosening, or power failure of a single structure. Third, it is easy to operate and also addresses emergency needs. Latch and rotation structures facilitate quick manual unlocking, while electromagnetic locks allow for electrical control linkage. Combined structures ensure rapid opening even in emergencies (such as equipment failure), preventing delays in rescue efforts. Fourth, it has wide adaptability. The diverse design allows the device to meet the safety requirements of different working conditions such as construction sites, mines, and farmland, significantly improving the safety and reliability of skid steer loader operations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 is a schematic diagram of the overall structure provided by an embodiment of this utility model.

[0014] Figure 2 is a top view of this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] This utility model provides a safety device for preventing the misoperation of hydraulic valves in skid steer loaders. It is characterized by including a pedal 1, a safety cover 2, a bracket 3, a hydraulic valve 4, a nut 5, and a bolt 6. The hydraulic valve 4 is installed at the bottom of the bracket 3, and the pedal 1 and connecting rod are installed at the top of the hydraulic valve 4. One end of the safety cover 2 is hinged to the bracket 3 by the bolt 6 and the nut 5, and the other end of the safety cover 2 is connected to the hydraulic valve by a locking structure.

[0017] Furthermore, the locking structure is a snap-locking structure, consisting of snaps set on the edge of the safety cover 2 and corresponding blocks installed on the hydraulic valve. The elastic deformation of the snaps and the cooperation of the blocks prevent the safety cover from being opened.

[0018] Furthermore, the locking structure is a pin-type locking structure, including a pin installed on the safety cover and a pin hole provided on the hydraulic valve, with the pin inserted into the pin hole.

[0019] Furthermore, the locking structure is a rotary locking structure, consisting of a rotary latch, a locking groove, and a rotating shaft installed at the connection between the safety cover and the hydraulic valve. The rotary latch rotates around the rotating shaft and engages with the locking groove.

[0020] Furthermore, the locking structure is an electromagnetic locking structure, including an electromagnetic lock body installed on the safety cover, an armature set on the hydraulic valve, and related control circuits and power supplies. The control circuit energizes the electromagnetic lock body to generate a magnetic field, which attracts the armature, and the safety cover is tightly attached to the hydraulic valve.

[0021] Furthermore, the above-mentioned various locking structures can be used in combination, employing snap-on and pin-type structures, or a combination of pin-type and electromagnetic structures.

[0022] The working principle of this utility model of a safety device for preventing hydraulic valve misoperation in skid steer loaders revolves around "protection-locking-operation". The device is based on a bracket, with the hydraulic valve fixed at the bottom. A pedal and connecting rod are installed on the upper part of the hydraulic valve for normal operation. A safety cover is hinged to the bracket with bolts and nuts and can be opened and closed to cover the hydraulic valve.

[0023] When the equipment is not in operation or in a state where accidental operation needs to be prevented, the operator lowers the safety cover to cover the hydraulic valve and locks it using a locking mechanism. Different locking mechanisms operate on different principles: A snap-on locking mechanism utilizes the elastic deformation of the safety cover's edge snaps to tightly engage with a block on the hydraulic valve, maintaining the locked state through mechanical elasticity; a pin-type mechanism achieves mechanical limiting by inserting a pin on the safety cover into the hydraulic valve's pin hole; a rotary type uses a rotating latch to rotate around an axis and engage with a locking groove; and an electromagnetic type, after the control circuit is energized, generates a magnetic field that attracts the armature, causing the safety cover to press tightly against the hydraulic valve. Furthermore, combined locking mechanisms can combine the advantages of multiple methods, such as mechanical locking combined with electromagnetic locking, relying on electromagnetic locking during normal power supply and maintaining the lock through the mechanical structure when power is off.

[0024] When the equipment needs to operate normally, the operator releases the locking mechanism of the safety cover, lifts the safety cover, and can then operate the hydraulic valves via the pedal and linkage. Throughout the process, the safety cover and locking mechanism form a physical barrier; the hydraulic valves can only be operated after the operator actively releases the lock, effectively preventing accidental operation and ensuring the safety of both equipment and personnel.

[0025] This utility model also includes an instrument panel and indicator lights. The instrument panel is installed on a fixed panel behind or to the right of the steering wheel in the driver's cab, within an area that the operator can observe with their eyes naturally lowered, facilitating real-time viewing of the safety cover status icon and locking structure fault codes. The indicator lights are installed in the center above the control panel in the driver's cab, within the operator's normal sitting posture and allowing for quick observation of the indicator light status without significantly shifting their gaze. For smaller indicator lights, they can also be integrated into a conspicuous location on the edge of the safety cover or the bracket to provide close-range indication of the locking status. For example, a green indicator light illuminates when the safety cover is locked, and a red light flashes when an abnormality occurs. A transparent protective cover can be added next to the indicator light to prevent dust and oil stains from affecting the display effect.

[0026] This utility model integrates multiple status feedback mechanisms: first, indicator lights illuminate green when the safety cover is locked, and flash red with an alarm when unlocking or locking malfunctions; second, instrument panel linkage displays the safety cover status icon and locking structure fault code on the cockpit display screen in real time; third, tactile feedback provides vibration feedback when the operating handle vibrates to indicate locking malfunctions. Furthermore, the control circuit of the electromagnetic locking structure also has a self-diagnostic function, periodically checking the status of the electromagnetic lock body, armature, and power supply, and actively triggering locking and reporting error information when abnormalities occur.

[0027] By standardizing opening conditions and providing multi-dimensional status prompts, the device can ensure that the hydraulic valves operate under safe conditions and reduce the risk of human error through timely feedback, thereby comprehensively improving the safety and reliability of skid steer loader operations.

Claims

1. A safety device for preventing maloperation of hydraulic valves in skid steer loaders, characterized in that: It includes a pedal (1), a safety cover (2), a bracket (3), a hydraulic valve (4), a nut (5), and a bolt (6). The hydraulic valve (4) is installed at the bottom of the bracket (3), and the pedal (1) and connecting rod are installed on the upper part of the hydraulic valve (4). One end of the safety cover (2) is hinged to the bracket (3) by bolts (6) and nuts (5), and the other end of the safety cover (2) is connected to the hydraulic valve (4) by a locking structure.

2. The safety device for preventing hydraulic valve misoperation in a skid steer loader according to claim 1, characterized in that: The locking structure is a snap-locking structure, consisting of a snap-lock on the edge of the safety cover (2) and a corresponding locking block installed on the hydraulic valve (4). The snap-lock's elastic deformation and the locking block's cooperation prevent the safety cover (2) from opening.

3. The skid steer loader anti-hydraulic valve misuse safety device of claim 1, wherein: The locking structure is a pin-type locking structure, including a pin installed on the safety cover (2) and a pin hole set on the hydraulic valve (4), with the pin inserted into the pin hole.

4. The skid steer loader anti-hydraulic valve misuse safety device of claim 1, wherein, The locking structure is a rotary locking structure, consisting of a rotary latch, a locking groove, and a rotating shaft installed at the connection between the safety cover (2) and the hydraulic valve (4). The rotary latch rotates around the rotating shaft and engages in the locking groove.

5. The safety device for preventing maloperation of hydraulic valves in a skid steer loader according to claim 1, characterized in that, The locking structure is an electromagnetic locking structure, including an electromagnetic lock body installed on the safety cover (2), an armature set on the hydraulic valve (4), a control circuit and a power supply. The control circuit powers the electromagnetic lock body to generate a magnetic field, attracting the armature, and the safety cover is tightly attached to the hydraulic valve (4).

6. The skid steer loader anti-hydraulic valve misuse safety device of any one of claims 1-5, wherein, The above-mentioned locking structures are used in combination, employing snap-on and pin-type structures, or a combination of pin-type and electromagnetic structures.

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