CN115180555A - Auxiliary suspension arm of forklift - Google Patents

Abstract

The invention discloses an auxiliary suspension arm of a forklift, which comprises a base, wherein a connecting arm is arranged on the upper side of the base, a lifting hook is arranged at one end of the connecting arm, the base comprises two connecting sleeves, inserting grooves are formed in the connecting sleeves, each inserting groove comprises an inlet and an outlet, a via hole and a first avoiding groove are formed in the lower side of one end, close to the outlet, of each connecting sleeve, each first avoiding groove is formed in one end, close to the inlet, of each via hole and communicated with the corresponding via hole, the extending direction of each first avoiding groove is consistent with the extending direction of the corresponding connecting sleeve, a blocking block is arranged on the lower side of each via hole, a plurality of balls are arranged on one side, close to the inlet, of each blocking block, each first avoiding groove is provided with a guide plate, two support plates are arranged on the lower side of each connecting sleeve, a moving cavity is formed between the support plates, a guide rail is arranged in each moving cavity, each guide rail is connected with a sliding seat in a sliding mode, a rotating rod is arranged between each sliding seat and each blocking block, and a first driving device and a second driving device are arranged in each moving cavity. The blocking block can prevent the connecting sleeve and the front fork from being separated.

Description

Fork truck auxiliary boom

Technical Field

The invention relates to the technical field of equipment transportation, in particular to an auxiliary suspension arm of a forklift.

Background

When the goods and materials are loaded and unloaded, for the complete equipment more than 0.5 ton, if no tray exists, an assistant person is needed to pry the equipment to lift off the ground, and the fork of the forklift is convenient to insert. Even so, it is easy to cause: 1. the fork of the forklift scrapes the ground, so that the ground of the warehouse is damaged; 2. the number of the persons needing to be assisted is large, and the labor cost is high; 3. easily causing injury to people.

Particularly, when new equipment arrives at a warehouse, the equipment is still on a vehicle, generally, no tray exists, personnel with small gaps among the equipment are difficult to stand, and the cost is not cost-effective when the large-scale crane is used for goods below 2 tons. The auxiliary lifting arm of the forklift can utilize the existing equipment of the forklift and can lift goods below 2 tons. However, the conventional auxiliary boom of the forklift is easy to disengage from the forklift under the action of inertia when the forklift is braked and stopped, so that the safety problem is caused.

Disclosure of Invention

The invention provides an auxiliary boom of a forklift, aiming at solving the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a fork truck auxiliary boom, which comprises a base, the upside of base is provided with the linking arm, the one end of linking arm is provided with the lifting hook, the base includes two adapter sleeves that are parallel to each other, through bottom plate fixed connection between the adapter sleeve, be provided with the slot that runs through in the adapter sleeve, the slot includes entry and export, the lifting hook sets up in the top of export and sets up the front side in the export, the downside that the adapter sleeve is close to the one end of export is provided with via hole and the first groove of dodging, first dodging the groove setting is close to the one end of entry and communicates with the via hole at the via hole, the extending direction of the first groove of dodging is unanimous with the extending direction of adapter sleeve, the downside of via hole is provided with the sprue, the sprue is provided with a plurality of balls in the one side that the sprue is close to the entry, first relative both sides of dodging the width direction of groove at the first dodging is provided with the deflector plate that is used for supporting the ball, the downside of adapter sleeve is provided with two backup pads that are parallel to each other sides, the backup pad sets up in the width direction of adapter sleeve and extend along the dwang adapter sleeve and the runner drive block, the sprue sets up the sprue and drive the sprue with the sprue and the sprue to be connected with the second sprue, the sprue and the sprue with the first sprue and drive device, the sprue and the sprue, the sprue and drive the sprue and the sprue set up the sprue and drive the sprue and the sprue with the second sprue and drive the sprue, the sprue and drive device and drive the sprue in the sprue and the first sprue of the sprue.

The base is used for supporting the linking arm and is used for being connected with fork truck's front fork, and the linking arm is used for supporting the lifting hook, and the lifting hook is used for connecting the object that needs the transport. The slot is used for passing through the front fork. Specifically, the front fork passes through the slot from the inlet to the outlet. The lifting hook sets up in the top of export and sets up in the front side of export, prevents that object and base from producing the interference. The supporting plate is used for contacting with the ground so as to support the connecting sleeve for protecting the blocking block. The guide rail is used for the sliding seat to slide, and the sliding seat is used for driving the plugging block to move. When the object is lifted by the lifting hook, the connecting sleeve rotates, so that the front fork is abutted against the lower side of the inlet, the front fork is abutted against the upper side of the outlet, and at the moment, a first space with the height gradually reduced from the outlet to the inlet is formed between the front fork and the lower side wall of the inserting groove. Under the effect of first drive arrangement, the sprue upwards passes the via hole and gets into first space, and the ball is located the downside of sprue, the upside and the front fork clearance fit of sprue. Under the effect of second drive arrangement, the sliding seat moves to the entry, drives the sprue and moves to the entry, and the downside butt of upside and the front fork of sprue is up to. The blocking block can prevent the connecting sleeve from moving forwards relative to the front fork under the action of inertia force, and further prevent the front fork from being separated from the connecting sleeve.

Further, the one end that the sprue was kept away from to the dwang extends there is the extension section, the downside of extension section is provided with dials the piece, dial piece fixed connection in the motion intracavity, a drive arrangement is including setting up the first reset spring between dwang and sliding seat, the one end and the dwang of first reset spring are connected, the other end and the sliding seat of first reset spring are connected, the downside and the piece butt of dialling of extension section, the sliding seat includes first portion, the second portion, the intermediate part, first portion and second portion pass through intermediate part fixed connection, form the second between first portion and the second portion and dodge the groove, the dwang rotates to be connected at the second and dodges the inslot, dial the piece and partly set up at the second and dodge the inslot, the intermediate part sets up in the top of extension section and is used for the dwang spacingly.

Furthermore, the second driving device comprises a motor arranged in the movement cavity, the motor is arranged on one side, close to the inlet, of the sliding seat, the motor is connected with a winding wheel, the winding wheel is connected with the sliding seat through a pull wire, a support is arranged on the lower side of the outlet, the support is fixedly connected with the connecting sleeve, and the support is connected with the first portion through a second reset spring.

Further, the upside of export is provided with first conducting strip, and the downside of entry is provided with the second conducting strip, is provided with the battery in the motion intracavity, and the positive pole and the first conducting strip of battery are connected, and the negative pole and the motor of battery are connected, and the negative pole of motor and battery is connected, and the upside that the one end that the adapter sleeve is close to the entry is provided with the balancing weight.

Further, the upside fixedly connected with that the bottom plate is close to the one end of export is along the stand of vertical extension, and the upside fixedly connected with connecting plate that the bottom plate is close to the one end of entry, and the one end and the connecting plate of linking arm are connected, and the other end slope of linking arm upwards extends and is provided with the lifting hook, and the middle part of linking arm and the upper end of stand are connected.

Furthermore, one end of the guide plate close to the via hole is provided with a guide surface which is convenient for the ball to roll to the upper side of the guide plate.

Compared with the prior art, the invention has the following beneficial effects: 1. the blocking block can prevent the connecting sleeve and the front fork from being separated; 2. the arrangement of the first conducting plate and the second conducting plate can realize the automatic operation of the first driving device and the second driving device.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the present application.

Fig. 2 is a top view of an embodiment of the present application.

Fig. 3 is an enlarged view at a of fig. 1 of an embodiment of the present application.

FIG. 4 is a cross-sectional view B-B of FIG. 3 of an embodiment of the present application.

Fig. 5 is a schematic view of the front fork of the embodiment of the present application passing through the connecting sleeve.

Fig. 6 is a schematic view of a hook of an embodiment of the present application lifting an object.

Fig. 7 is a schematic view of a rotated blockout of an embodiment of the present application.

Fig. 8 is an enlarged view at C of fig. 7 of an embodiment of the present application.

Fig. 9 is a schematic view of the abutment of a blocker and a front fork of an embodiment of the present application.

Fig. 10 is an enlarged view at D of fig. 9 of an embodiment of the present application.

FIG. 11 is a cross-sectional view E-E of FIG. 10 of an embodiment of the present application.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Referring to fig. 1 to 11, an auxiliary boom for a forklift includes a base 11, a connecting arm 111 is disposed on an upper side of the base 11, a hook 1111 is disposed at one end of the connecting arm 111, the base 11 includes two connecting sleeves 112 parallel to each other, the connecting sleeves 112 are fixedly connected to each other through a bottom plate 113, a slot 1121 penetrating through the connecting sleeves 112 is disposed in the connecting sleeves 112, the slot 1121 includes an inlet 1121a and an outlet 1121b, the hook 1111 is disposed above the outlet 1121b and is disposed at a front side of the outlet, wherein the front side is a side of the outlet away from the inlet to avoid interference between objects on the hook and the base, a via 1122 and a first avoiding groove 1123 are disposed at a lower side of one end of the connecting sleeves 112 close to the outlet 1121b, the first avoiding groove 1123 is disposed at one end of the via 1122 close to the inlet 1121a and is communicated with the via 1122, an extending direction of the first avoiding groove 1123 is identical to an extending direction of the connecting sleeves 112, a blocking piece 1122a is disposed at a lower side of the via 1122, a plurality of balls 1122b are arranged on one side of the blocking block 1122a close to the inlet 1121a, guide plates 1123a for supporting the balls 1122b are arranged on two opposite sides of the first avoidance groove 1123 in the width direction, two support plates 1124 parallel to each other are arranged on the lower side of the connecting sleeve 112, the support plates 1124 are arranged on two opposite sides of the connecting sleeve 112 in the width direction and extend in the extending direction of the connecting sleeve 112, the blocking block 1122a is arranged between the support plates 1124, a moving cavity extending in the extending direction of the connecting sleeve 112 is formed between the support plates 1124, a guide rail 1124a extending in the extending direction of the connecting sleeve 112 is arranged in the moving cavity, the guide rail 1124a is slidably connected with a sliding seat 1124b, the sliding seat 1124b is arranged on one side of the blocking block 1122a close to the inlet 1121a, a rotating rod 1124c is arranged between the sliding seat 1124b and the blocking block 1122a, one end of the rotating rod 1124c is fixedly connected with the blocking block a, and the other end of the rotating rod 1124c is rotatably connected with the sliding seat 1124b, a first driving device and a second driving device 1124e are disposed in the moving cavity, the first driving device and the rotating rod 1124c are connected and used for driving the rotating rod 1124c to rotate so that the blocking piece 1122a passes through the through hole 1122 and moves into the connecting sleeve 112, and the second driving device 1124e and the sliding seat 1124b are connected and used for driving the sliding seat 1124b to move along the guide rail 1124a so that the blocking piece 1122a moves to the upper side of the guide plate 1123 a.

An extension section 1124f extends from one end of the rotating rod 1124c far away from the blocking piece 1122a, a toggle block 1124g is arranged on the lower side of the extension section 1124f, the toggle block 1124g is fixedly connected in the motion cavity, the first driving device comprises a first return spring (not shown in the figure) arranged between the rotating rod 1124c and the sliding seat 1124b, one end of the first return spring is connected with the rotating rod 1124c, the other end of the first return spring is connected with the sliding seat 1124b, the lower side of the extension section 1124f is abutted to the toggle block 1124g, the sliding seat 1124b comprises a first portion 1124h, a second portion 1124k and an intermediate portion 1124m, the first portion 1124h and the second portion 1124k are fixedly connected through the intermediate portion 1124m, a second avoidance groove 1124n is formed between the first portion 1124h and the second portion 1124k, the rotating rod 1124c is rotatably connected in the second avoidance groove 1124n, the toggle block 1124g is at least partially arranged in the second avoidance groove 1124n, the intermediate portion 1124m is arranged above the extension section 1124f and is used for limiting the position of the extension section 1124 c.

The second driving device 1124e includes a motor 1124p disposed in the moving cavity, the motor 1124p is disposed on one side of the sliding seat 1124b near the inlet 1121a, the motor 1124p is connected with a winding wheel 1124q, the winding wheel 1124q and the sliding seat 1124b are connected through a pull wire 1124r, a bracket 1121c is disposed on the lower side of the outlet 1121b, the bracket 1121c is fixedly connected with the connecting sleeve 112, and the bracket 1121c is connected with the first portion 1124h through a second return spring 1121 d.

A first conducting strip 1121e is arranged on the upper side of the outlet 1121b, a second conducting strip 1121f is arranged on the lower side of the inlet 1121a, a battery 1124s is arranged in the movement cavity, the positive electrode of the battery 1124s is connected with the first conducting strip 1121e, the negative electrode of the battery 1124s is connected with the motor 1124p, and the negative electrode of the motor 1124p is connected with the negative electrode of the battery 1124 s. The upper side of one end of the connecting sleeve 112 near the inlet 1121a is provided with a weight 1125.

The upside fixedly connected with of bottom plate 113 near the one end of export 1121b is along vertical extension's stand 1131, and the upside fixedly connected with connecting plate 1132 of bottom plate 113 near the one end of entry 1121a, the one end and the connecting plate 1132 of linking arm 111 are connected, and the other end slope of linking arm 111 upwards extends and is provided with lifting hook 1111, and the middle part of linking arm 111 and the upper end of stand 1131 are connected.

One end of the guide plate 1123a near the through hole 1122 is provided with a guide surface 1123b for allowing the balls 1122b to roll to the upper side of the guide plate 1123 a.

Principle of embodiment:

in use, the fork 200 of the forklift passes through the slot 1121 from the inlet 1121a to the outlet 1121b, see fig. 5, and then moves upward so that the connection sleeve 112 leaves the ground, and the fork is attached to the upper side wall of the slot 1121 by the weight 1125.

After the object is connected to the hook 1111, under the action of the gravity of the object, the connection sleeve 112 rotates, and finally, the first conductive piece 1121e abuts against the upper side of the front fork, and the second conductive piece 1121f abuts against the lower side of the front fork, that is, the current of the battery 1124s flows to the motor 1124p through the first conductive piece 1121e, the front fork and the second conductive piece 1121f, and the motor 1124p is operated, as shown in fig. 6. In addition, at this time, a first space 101 in which the height gradually decreases from the outlet 1121b to the inlet 1121a is formed between the front fork and the lower side wall of the insertion groove 1121.

When the motor 1124p is operated, the motor 1124p drives the winding wheel 1124q to rotate, the sliding seat 1124b moves towards the inlet 1121a under the action of the pull wire 1124r, the second return spring 1121d is lengthened, the toggle block 1124g and the sliding seat 1124b relatively move in the process of movement of the sliding seat 1124b, the toggle block 1124g and the rotating rod 1124c rotate under the action of the first return spring, the blocking block 1122a upwardly passes through the through hole 1122 and enters the first space, the ball 1122b is positioned at the lower side of the blocking block 1122a, and the rotating rod 1124c abuts against the middle part 1124m, see fig. 7 and 8. At this time, the upper side of the blocking piece 1122a is clearance-fitted with the front fork.

As the motor 1124p continues to operate, the sliding seat 1124b moves towards the inlet 1121a, and drives the blocking piece 1122a to move towards the inlet 1121a until the upper side of the blocking piece 1122a abuts against the lower side of the front fork. In this process, the rotating lever 1124c moves along the first escape groove 1123, and the balls 1122b roll to the upper side of the guide plate 1123a by the guide surface 1123b and move along the guide plate 1123a until the upper side of the block 1122a abuts against the lower side of the front fork, see fig. 9, 10, and 11. At this time, the rotating rod 1124c passes through the first avoidance groove 1123 and abuts on one end of the first avoidance groove 1123 away from the through hole 1122.

Friction exists between the front fork and the blocking piece 1122a, and when the forklift is suddenly braked, the blocking piece 1122a can prevent the connecting sleeve 112 from moving forward relative to the front fork under the action of inertia force, so that the front fork and the connecting sleeve 112 are prevented from being separated. The principle is that when the connecting sleeve 112 tends to move forward under the action of inertia force, the blocking piece 1122a tends to move along the first space toward the inlet 1121a under the action of friction force of the front fork, but the height of the first space gradually decreases from the outlet 1121b to the inlet 1121a, so that the blocking piece 1122a basically cannot move along the first space, and finally, the pressure between the blocking piece 1122a and the front fork becomes large, that is, the friction force between the blocking piece 1122a and the front fork becomes large, that is, the connecting sleeve 112 cannot move forward relative to the front fork.

After the object reaches the destination, after the object is detached from the hook 1111, the front fork is attached to the upper side wall of the slot 1121 again, referring to fig. 5, at this time, the front fork is detached from the blocking piece 1122a, the first conductive piece 1121e and the second conductive piece 1121f are disconnected, under the action of the second return spring 1121d, the sliding seat 1124b moves toward the outlet 1121b until the moving piece 1124g moves the extending section 1124f, so that the rotating rod 1124c rotates, and the blocking piece 1122a passes through the through hole 1122 downward and leaves the slot 1121, so that the front fork is conveniently separated from the slot 1121.

It will be appreciated that modifications and variations are possible to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims (6)

1. A forklift auxiliary boom is characterized by comprising a base, wherein a connecting arm is arranged on the upper side of the base, a lifting hook is arranged at one end of the connecting arm, the base comprises two connecting sleeves which are parallel to each other, the connecting sleeves are fixedly connected with each other through a bottom plate, inserting grooves penetrating through the connecting sleeves are arranged in the connecting sleeves, each inserting groove comprises an inlet and an outlet, the lifting hook is arranged above the outlet and is arranged on the front side of the outlet, a via hole and a first avoiding groove are arranged on the lower side of one end, close to the outlet, of the connecting sleeve, the first avoiding groove is arranged at one end, close to the inlet, of the via hole and communicated with the via hole, the extending direction of the first avoiding groove is consistent with the extending direction of the connecting sleeves, a blocking block is arranged on the lower side of the via hole, and a plurality of balls are arranged on one side, close to the inlet, of the blocking block, the first groove of dodging is in the first relative both sides of the width direction of dodging the groove are provided with the deflector that is used for supporting the ball, the downside of adapter sleeve is provided with two backup pads that are parallel to each other, the backup pad sets up the width direction's of adapter sleeve relative both sides and follows the extending direction extension of adapter sleeve, the sprue sets up between the backup pad, form the motion chamber that extends along the extending direction extension of adapter sleeve between the backup pad, be provided with in the motion chamber along the guide rail that extends of the extending direction of adapter sleeve, guide rail sliding connection has the sliding seat, the sliding seat sets up the sprue is close to one side of entry, the sliding seat with be provided with the dwang between the sprue, the one end of dwang with sprue fixed connection, the other end of dwang with the sliding seat rotates to be connected, the movement cavity is internally provided with a first driving device and a second driving device, the first driving device is connected with the rotating rod and used for driving the rotating rod to rotate so that the blocking block passes through the via hole and moves into the connecting sleeve, and the second driving device is connected with the sliding seat and used for driving the sliding seat to move along the guide rail so that the blocking block moves to the upper side of the guide plate.

2. The forklift truck auxiliary boom according to claim 1, wherein one end of the blocking block, from which the rotating rod is away, is extended with an extension section, a poking block is provided on a lower side of the extension section, the poking block is fixedly connected in the motion cavity, the first driving device comprises a first return spring arranged between the rotating rod and the sliding seat, one end of the first return spring is connected with the rotating rod, the other end of the first return spring is connected with the sliding seat, the lower side of the extension section is abutted against the poking block, the sliding seat comprises a first portion, a second portion and an intermediate portion, the first portion is connected with the second portion through the intermediate portion fixedly connected, a second dodging groove is formed between the first portion and the second portion, the rotating rod is rotatably connected in the second dodging groove, the poking block is at least partially arranged in the second dodging groove, the intermediate portion is arranged above the extension section and is used for limiting the rotating rod.

3. The auxiliary boom of forklift as claimed in claim 2, wherein said second driving device comprises a motor disposed in said motion chamber, said motor is disposed on a side of said sliding seat near said inlet, said motor is connected with a winding wheel, said winding wheel is connected with said sliding seat by a pull wire, a support is disposed on a lower side of said outlet, said support is fixedly connected with said connecting sleeve, and said support is connected with said first portion by a second return spring.

4. The auxiliary boom of forklift as claimed in claim 3, wherein a first conducting strip is arranged on the upper side of the outlet, a second conducting strip is arranged on the lower side of the inlet, a battery is arranged in the motion cavity, the positive pole of the battery is connected with the first conducting strip, the negative pole of the battery is connected with the motor, the motor is connected with the negative pole of the battery, and a counterweight is arranged on the upper side of one end of the connecting sleeve close to the inlet.

5. The auxiliary boom of forklift truck as claimed in claim 4, wherein the upper side of the end of said bottom plate near said outlet is fixedly connected with a vertical column extending vertically, the upper side of the end of said bottom plate near said inlet is fixedly connected with a connecting plate, one end of said connecting arm is connected with said connecting plate, the other end of said connecting arm extends obliquely upward and is provided with said hook, and the middle part of said connecting arm is connected with the upper end of said vertical column.

6. The auxiliary boom of any one of claims 1 to 5, wherein one end of said guide plate near said through hole is provided with a guide surface for facilitating rolling of said ball onto the upper side of said guide plate.

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