CN217759045U - Skid-steer loader driver safety device and skid-steer loader - Google Patents

Abstract

The utility model relates to a safety device discloses a skid steer loader driver safety device, including support, induction system and rotation connect in the safety lever of support, just have opening state and closed condition in the rotation stroke of safety lever, induction system can detect the opening state and the closed condition of safety lever. The utility model discloses a rotate the safety of connecting in the safety lever of support and can effectively protecting the driver to still be provided with induction system in this protector, can detect the state that safety lever located through induction system. The utility model also discloses a skid-steer loader, which controls the operation state of the skid-steer loader according to the detection result by detecting the state of the safety rod, and allows the skid-steer loader to operate when the safety rod is detected to be in the closed state; when the safety lever is detected to be in the opening state, the skid steer loader is forbidden to operate, so that misoperation is avoided.

Description

Skid-steer loader driver safety device and skid-steer loader

Technical Field

The utility model relates to a safety device especially relates to a skid-steer loader driver safety device. In addition, still relate to a skid steer loader.

Background

The skid steer loader is also called a skid steer loader, a multifunctional engineering vehicle and a multifunctional engineering machine, is wheel type special chassis equipment for realizing vehicle steering by utilizing the linear velocity difference of wheels at two sides, is mainly used for occasions with narrow operation places, uneven ground and frequent operation content change, is suitable for infrastructure construction, industrial application, wharf loading and unloading, city streets, houses, barns, animal houses, airport runways and the like, and can also be used as auxiliary equipment of large engineering construction machinery.

The skid steer loader as a small-sized engineering machine can turn 360 degrees on site, is flexible to operate and is an excellent tool for operation in narrow space. The operation of the skid steer loader is different from other engineering machinery with steering wheel operation, and the skid steer loader is operated by two operating handle rods. To make the skid steer loader safer and more comfortable for the driver to operate, it is common for skid steer loaders to be designed with cab bumpers.

However, the skid steer loader currently used in the market generates large vibration and jolt when working, so a bumper is required to ensure the safety of a driver, as shown in fig. 1, the bumper assembly 20 is fixed by the safety lever fixing seat 30, and the bumper assembly 20 is hinged on the safety lever fixing seat 30, so that the bumper assembly 20 can rotate on the safety lever fixing seat 30, that is, when the bumper assembly 20 rotates right above, the bumper assembly 20 is in a lifted state, and when the bumper assembly 20 rotates to the horizontal direction, the bumper assembly 20 is in a lowered state; in addition, the two ends of the bumper assembly 20 are symmetrically provided with anti-vibration units, each anti-vibration unit mainly comprises a pressure spring 43, a retainer ring 42, a first bolt 41 and a U-shaped rod fork head 44, when the bumper assembly 20 is in an open state, the pressure springs 43 are in a pre-tightening state, and when the skid-steer loader vibrates and bumps, the force acting on the bumper assembly 20 acts on the support seat plates of the pressure springs 43 through the retainer rings 42 of the pressure springs 43, so that the safety rods can be supported through the support seats of the pressure springs 43; when the bumper assembly 20 is in a put-down state, the compression springs 43 at the two ends are in a pre-tightening state, the counter-elastic force acting on the bumper assembly 20 acts on the compression spring 43 support plate welded on the bumper assembly 20 through the compression spring 43 retainer ring 42, so that the effect of pressing the bumper assembly 20 downwards is achieved, at the moment, the acting force of the compression spring 43 deviates from the rear and has an included angle with the vertical direction, even if the skid-steer loader works, the acting force of the compression spring 43 deviating from the rear cannot automatically bounce, and the effect of safety protection is achieved.

As can be seen from the above description, although the safety lever is provided to ensure the safety of the driver when the skid steer loader vibrates and jolts, the bumper assembly 20 having the U-shaped structure occupies a relatively small space in the cab when it is turned over, and the bumper assembly 20 has a complicated structure and is relatively expensive to manufacture; in addition, when the bumper assembly 20 is in the raised state, the driver may inadvertently and accidentally touch the operating device while leaving, thereby causing unnecessary safety accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the main technical problem that a skid steer loader driver safety device is provided can reduce occupation space, can avoid producing the maloperation simultaneously.

The utility model discloses further technical problem that will solve provides a skid-steer loader, can avoid producing the maloperation.

In order to solve the technical problem, the utility model provides an aspect provides a skid-steer loader driver safety device, including support, induction system and rotate connect in the safety lever of support, and have open mode and off-state in the rotation stroke of safety lever, induction system can detect the open mode and the off-state of safety lever.

Preferably, the support includes left branch seat and right branch seat, the one end of safety lever pass through the bolt with left branch seat or right branch seat rotates to be connected, is provided with the block structure on the lateral wall of the other end, so that safety lever can pass through block structure and another support joint.

Further preferably, all be provided with the block structure on the both ends lateral wall of safety lever, left side support with all set up on the right branch seat with the waist hole of block structure looks adaptation, so that the block structure can imbed the waist hole, thereby the realization is right safety lever's is fixed.

Preferably, when the safety lever is in a closed state, the clamping structure on the side wall of one end of the safety lever, which is far away from the rotating connection position, is clamped with the left support waist hole formed in the left support.

Further preferably, when the safety lever is in an open state, the fastening structure on the side wall of one end of the safety lever, which is far away from the rotation connection position, is separated from the left support waist hole until the fastening structure arranged on the side wall of the other end of the safety lever is fastened with the right support waist hole arranged on the right support.

Preferably, the snap-fit structure is a ball plunger.

Further preferably, a limiting device is further arranged at the rotary connection position of the safety rod and the support, so that the rotation angle of the safety rod can be limited through the limiting device.

Preferably, the outer surface of the safety rod is provided with a protective sleeve, and the protective sleeve is made of a material adopting a foaming process.

Further preferably, the middle portion of the safety lever is provided in an arc shape.

A skid steer loader comprising the skid steer loader driver safety device of any of the preceding claims, the sensing device coupled to a control device such that the control device is capable of sensing a signal from the sensing device, the sensing device coupled to the control device such that the control device is capable of enabling or disabling operation of the skid steer loader based on the sensing signal from the sensing device.

Through the technical scheme, the utility model discloses a skid steer loader driver safety device connects the safety lever that can effectively protect the driver in the support through rotating to still be provided with induction system in this protector, can detect the state that safety lever located through induction system. The utility model discloses a skid-steer loader has used the utility model discloses a skid-steer loader driver safety device, through detecting the state that the safety lever is located, and control the running state of this skid-steer loader according to the testing result, when detecting that the safety lever is in the closed condition, allow the skid-steer loader to function; when the safety lever is detected to be in the opening state, the skid-steer loader is forbidden to operate, so that misoperation is avoided.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of a conventional skid steer loader driver safety guard;

fig. 2 is a schematic structural view of a skid steer loader driver safety device according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a skid steer loader driver safety device according to an embodiment of the present invention in an open state;

FIG. 4 is a schematic view of the right bracket securing position of the skid steer loader driver safety device in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural view of a left support fixing position of the skid steer loader driver safety device according to the embodiment of the present invention;

fig. 6 is a schematic structural view of the skid steer loader driver safety device according to the embodiment of the present invention in an open state in a cab.

Reference numerals

1. Left support 2 and right support

3. Bolt 4 nut

5. 6 waist holes of safety rod

61. Left support waist hole 62 and right support waist hole

7. Induction device 8 clamping structure

9. Limiting device

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and for example, the term "connected" may be either a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be connected through inter-element communication or interaction between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

An embodiment of the safety protection device for the driver of the skid steer loader of the present invention, as shown in fig. 2, comprises a support, a sensing device 7 and a safety lever 5 rotatably connected to the support, and has an open state and a closed state within a rotation stroke of the safety lever 5, when the safety lever 5 is in the open state, the safety lever 5 can freely rotate on the support, but the maximum rotation stroke of the safety lever cannot contact with the glass of the cab of the skid steer loader; when safety lever 5 is in the closed condition, safety lever 5 is fixed transversely in skid steer loader's driver's cabin, thereby can protect the driver in the driver cabin, avoid skid steer loader carrying out the pivoted in-process, the driver constantly rocks in the driver cabin, thereby influence normal mechanical operation, and safety lever 5's setting can protect the driver can not receive skid steer loader vibration, the influence of other factors such as jolting at the in-process of carrying out the operation, driver's safe driving has been guaranteed. In addition, because safety lever 5 adopts solitary member, for the bumper that traditional adoption U type structure, the occupied driver's cabin area is littleer, because the driver's cabin space itself of skid steer loader is less relatively, consequently adopts the design of the safety lever 5 of this application more practical for the driver's cabin in narrow and small space to can protect driver's safety in limited space equally.

The utility model discloses an embodiment of skid-steer loader driver safety device, as shown in fig. 2, the support includes left support 1 and right support 2, wherein, one end of safety lever 5 is connected with left support 1 or right support 2 through bolt 3 rotation, bolt 3 preferably adopts hexagon socket head cap screw 3, pass hexagon socket head cap screw 3 simultaneously left support 1 or right support 2 and one end of safety lever 5, and fasten through nut 4, so that when safety lever 5 rotates around hexagon socket head cap screw 3, safety lever 5 can not drop from hexagon socket head cap screw 3, guarantee that safety lever 5 can be stable rotate on hexagon socket head cap screw 3; the lateral wall of the other end of the safety rod 5 is provided with a clamping structure 8, the clamping structure 8 preferably adopts a spherical plunger, a spring is arranged in the inner cavity of the spherical plunger, one end of the spring is fixedly connected to the bottom of the inner cavity of the spherical plunger, the other end of the spring is connected with one end of a ball head, the ball head part protrudes out of the cavity of the spherical plunger, in the process of clamping the spherical plunger with a waist hole 6 on a clamping seat, two lateral walls of the support seat generate pressure on the ball head, so that the ball head contracts into the inner cavity of the spherical plunger under the action of the pressure, when the ball head corresponds to the waist hole 6 on the support seat, the ball head contracted in the inner cavity of the spherical plunger is popped out and clamped with the waist hole, and therefore the safety rod 5 is fixedly operated. The other end of the safety rod 5 can be clamped with another support through the clamping structure 8, but the fixing mode of the safety rod 5 and the support is not limited to the clamping mode, and other detachable connection modes, such as a pin connection mode and the like, can also be adopted, so that the safety rod 5 can be fixed with the support, and the safety rod 5 cannot fall off from the support when the skid-steer loader vibrates or jolts after the safety rod is fixed.

Some embodiments of the safety protection device for skid steer loaders of the present invention, as shown in fig. 3, are provided with a fastening structure 8 at both ends of a safety bar 5, and a waist hole 6 is provided on a support which can be connected with both ends of the safety bar 5, and the fastening structure 8 is adapted to the waist hole 6, so that when the safety bar 5 is in a closed state, the fastening structure 8 on the connecting end away from the safety bar 5 and one support is embedded with the waist hole 6 on the other support, thereby fixing the safety bar 5; when safety lever 5 is in the open mode, block structure 8 breaks away from the back rather than the waist hole 6 of gomphosis mutually, and safety lever 5 can be on inner hexagonal bolt 3 free rotation, and after safety lever 5 rotated its maximum angle, set up block structure 8 on this safety lever 5 rotation connection end lateral wall and set up the waist hole 6 looks block on this end support to this carries out the locking to safety lever 5 fixedly, makes safety lever 5 can be in the biggest opening angle for a long time under the open mode, avoids safety lever 5 to produce and falls back.

The utility model discloses a skid-steer loader driver safety device's some embodiments, as shown in FIG. 2, when safety lever 5 is in the closed condition, this safety lever 5 keeps away from the block structure 8 of seting up on the one end lateral wall of rotation junction and sets up left support waist hole 61 looks block on left support 1, cooperate through block structure 8 and waist hole 6, thereby make this safety lever 5 stably fix on the support, produce vibration or jolt and lead to safety lever 5 to bounce when avoiding moving because of the skid-steer loader, thereby can't play effectual guard action.

The utility model discloses a skid-steer loader driver safety device's some embodiments, as shown in FIG. 3, safety lever 5 is when the open mode, safety lever 5 keeps away from the block structure 8 that rotates on the one end lateral wall of junction and breaks away from waist hole 6 on the left branch seat 1, safety lever 5 becomes the open mode from the closed condition this moment, safety lever 5 under the open mode can be under hexagon socket head cap screw 3's support free rotation, after it rotates certain angle, safety lever 5 rotates and serves the block structure 8 that sets up and right branch seat waist hole 62 looks block of seting up on 2, realized safety lever 5's fixed after the block. However, the position of the right support waist hole 62 is not fixed, and preferably, the right support waist hole 62 is arranged in the maximum rotation angle of the safety rod 5, namely, the right support waist hole 62 is vertically arranged right below the rotation connecting shaft of the safety rod 5 and the right support 2, at this time, when the clamping structure 8 on the safety rod 5 is clamped with the waist hole 6, the safety rod 5 can be vertically fixed on one side of the cab, the safety rod 5 is in the position, on one hand, the safety rod 5 can be prevented from damaging glass, on the other hand, the activity space in the cab can be ensured to the maximum extent, the safety rod 5 is prevented from occupying too much activity space of a driver, and the space utilization rate in the cab is improved.

The utility model discloses a skid-steer loader driver safety device's some embodiments, as shown in fig. 3, safety lever 5 still is provided with stop device 9 with the rotation junction of support, restrict safety lever 5's the biggest turned angle through stop device 9, stop device 9's the optional limiting plate of selection, add in the axis of rotation and establish damping material or adopt modes such as hinges to restrict safety lever 5's turned angle, through stop device 9's restriction, this safety lever 5's the biggest rotation stroke does not produce the collision with driver's cabin glass, driver's safe driving has been guaranteed, avoid safety lever 5 to smash driver's cabin glass.

The utility model discloses an implementation mode of skid-steer loader driver safety device, as shown in fig. 2 to fig. 3, the middle part of safety lever 5 sets up to the arc, make safety lever 5 be adapted to the extension length and the human body type of human arm, change in driver's operation, and still be provided with the lag at safety lever 5's surface, the lag adopts the material of foaming process material to make, the foamed plastics that the lag can adopt to make through foaming process, plastic foam's technological source is long away, the foam bakelite in the 20 th century initial stage at the earliest, prepare with the method of similar manufacturing foam rubber, rigid polyurethane foam and polystyrene foam appear in the 30 s, there is polyethylene in the 40 s, polyvinyl chloride, epoxy, phenol-formaldehyde polyurethane foam, there are expandable polystyrene foam and soft foam in the 50 s. Now, essentially all plastics, both thermoplastic and thermosetting, can be foamed into foamed plastics. When the foamed plastic is manufactured, firstly, inert gas is dissolved in plastic melt or paste under pressure, and then the gas is released through decompression, so that air holes are formed in the plastic for foaming; foaming by vaporizing a low boiling point liquid dissolved in the polymer melt; hollow microspheres are added to a plastic to form a foam or the like. The foaming process has relatively low cost, particularly low cost of carbon dioxide and nitrogen, flame retardance and no pollution, so the application value is high; and the foaming process has no residue after foaming and has little influence on the performance of the foamed plastic, so the safety rod 5 is covered by the material, and a driver feels more comfortable when touching the safety rod.

The utility model discloses an embodiment of skid-steer loader has used the utility model discloses skid-steer loader driver safety device in any embodiment consequently also has above-mentioned advantage. As shown in fig. 4, the right holder of the safety guard is fixedly installed at the right side of the cab, as shown in fig. 5, and the left holder is fixedly installed at the left side of the cab, as shown in fig. 6, when the safety lever is in the open state, it is possible to facilitate the driver to freely enter and exit the cab. In addition, in the skid steer loader, a control device is further arranged, and the control device is electrically connected with the sensing device 7, so that the control device can control the skid steer loader according to signals detected by the sensing device 7, wherein when the sensing device 7 senses that the safety lever 5 is in the open state, the control device receives information sensed by the sensing device 7, the control device locks a control device of the skid steer loader, and when a driver tries to operate the skid steer loader to work, the skid steer loader does not respond to the operation of the driver, namely the driver cannot operate the skid steer loader when the safety lever 5 is in the open state; when the sensing device 7 senses that the safety rod 5 is in a closed state, the control device receives a sensing signal transmitted by the sensing device 7, the control device releases the limitation on the slotted hole equipment of the skid loader, and a driver can freely operate the skid loader at the moment. Therefore, through the mutual matching of the control equipment and the sensing device 7, the intelligent control of the skid steer loader is realized, and the possibility that the driver generates misoperation on the skid steer loader is effectively avoided.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical concept scope of the present invention, it can be right to perform various simple modifications to the technical solution of the present invention, including combining each specific technical feature in any suitable manner, in order to avoid unnecessary repetition, the present invention does not describe separately various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. A skid steer loader driver safety device, characterized by, include support, induction system (7) and rotate connect in safety lever (5) of support, and in the rotation stroke of safety lever (5) has open mode and closed condition, induction system (7) can detect the open mode and the closed condition of safety lever (5).

2. The skid steer loader driver safety device of claim 1, wherein the support comprises a left support (1) and a right support (2), one end of the safety lever (5) is rotatably connected with the left support (1) or the right support (2) through a bolt (3), and a clamping structure is arranged on a side wall of the other end of the safety lever, so that the safety lever (5) can be clamped with the other support through the clamping structure (8).

3. The safety device for drivers of a skid steer loader according to claim 2, wherein the side walls of the two ends of the safety rod (5) are provided with clamping structures (8), and the left support (1) and the right support (2) are provided with waist holes (6) matched with the clamping structures (8), so that the clamping structures (8) can be embedded into the waist holes (6), thereby fixing the safety rod (5).

4. The skid steer loader driver safety device according to claim 3, wherein when the safety lever (5) is in a closed position, the engagement structure (8) on the side wall of the end of the safety lever (5) away from the pivot connection engages with a left support waist hole (61) formed in the left support (1).

5. The skid steer loader driver safety guard according to claim 4, wherein when the safety lever (5) is in an open position, the engagement structure (8) on the side wall of one end of the safety lever (5) away from the pivot joint is disengaged from the left support waist hole (61) until the engagement structure (8) on the side wall of the other end of the safety lever (5) engages with the right support waist hole (62) provided on the right support (2).

6. The skid steer loader driver safety shield according to any of claims 2-5, wherein the snap-fit structure (8) is a ball plunger.

7. The skid steer loader driver safety shield according to claim 1, wherein a stop device (9) is further provided at a rotational connection of the safety lever (5) and the support, such that a rotational angle of the safety lever (5) can be limited by the stop device (9).

8. The skid steer loader driver safety device according to claim 1, wherein an outer surface of said safety bar (5) is provided with a protective sleeve, said protective sleeve being made of a material using a foaming process.

9. The skid steer loader driver safety guard according to claim 1, wherein the middle of the safety bar (5) is configured in an arc.

10. A skid steer loader comprising a skid steer loader driver safety device according to any of claims 1 to 9, wherein the sensing device (7) is connected to a control device such that the control device can enable or disable the skid steer loader operation based on a detection signal from the sensing device.

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