Auxiliary cantilever frame for forklift to transfer ton bags

Abstract

The utility model discloses an auxiliary cantilever frame for a forklift to transfer ton bags, and relates to the technical field of logistics storage of large packing materials such as the ton bags. The auxiliary cantilever frame for the forklift to transfer the ton bags comprises a base, a stand column, a fixing bolt, an inclined strut, a cantilever arm, a ratchet wheel, a ratchet wheel shaft, a tension spring and a taper head. The base is installed on a fork shovel of a forklift through a rectangular hole in the rear end. The lower end of the stand column is welded and fixed to the base. The fixing bolt is installed on the base and used for fixing the base and a fork shovel of a forklift. The inclined struts are welded to the upper portion of the base and the upper portion of the stand column respectively. The rear end of the cantilever arm is welded and fixed on the upright post; the ratchet wheel is mounted on the ratchet wheel shaft; the ratchet shaft is mounted on the cantilever shaft sleeve; the upper end of the tension spring is tied to the ratchet wheel, and the lower end of the tension spring is tied to the inner wall of the cantilever arm; and the taper head is arranged on an inner hole at the front end of the cantilever arm.

Description

Technical Field

[0001] This utility model relates to the field of logistics storage technology for large packaging materials such as ton bags, and in particular to an auxiliary lifting frame for forklift transfer of ton bags. Background Technology

[0002] In recent years, with the rapid development of the construction industry, the application of building fasteners has been enormous. Initially, the turnover, transportation, and storage of fasteners mainly relied on bulk loading, unloading, and storage. This method is labor-intensive, time-consuming, and presents significant difficulties for on-site storage and transfer. Currently, building fasteners are typically transported and stored in ton bags using forklifts for transport and stacking. While forklift transport of ton bags reduces labor intensity and improves efficiency, in practice, the forklifts lift the ton bags by directly reaching the lifting rings above them, resulting in the entire ton bag being below the forklifts. This severely reduces the forklift's lifting height, leading to insufficient stacking height, increased space occupation, and a high risk of slippage during stacking and transport, posing significant safety hazards. Furthermore, the sharp edges of the forklifts can easily damage the ton bags and lifting rings, causing localized stress concentration and fatigue failure, thus increasing turnover and storage costs. To address these issues, an innovative auxiliary lifting frame for forklift transport of ton bags has been designed. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem this utility model aims to solve is: by using this cantilever frame, the lifting and stacking height of the forklift is increased, and the space occupied is reduced. The application of anti-slip ratchet ensures that the ton bags will not slip during transportation and stacking, eliminating safety hazards. The application of round tube cantilever arms and tapered heads avoids the problems of local stress concentration and fatigue damage of the ton bag lifting rings, and the sharp edges of the forks and shovels can easily damage the ton bags and lifting rings, thus reducing turnover and storage costs.

[0005] Technical solution

[0006] To solve the above technical problems, this utility model provides an auxiliary lifting frame for forklift transporting ton bags, including: a base, a column, fixing bolts, diagonal braces, a lifting arm, a ratchet, a ratchet shaft, a tension spring, and a tapered head; the base is made of 20# channel steel and 10mm thick steel plate welded together to form a rectangular tube, and then the rectangular tube is welded into a cuboid. The cuboid is installed on the forklift's forks through a rectangular hole at the rear end. 18mm diameter holes are drilled on both sides of the rear end of the cuboid, and M18 nuts are welded concentrically to these 18mm diameter holes to fix the fixing bolts; the column is made of ∠100*100*10 angle steel welded together, and its lower end is welded and fixed to the base; the fixing bolts are installed on the M18 nuts on both sides of the rear of the base to fix the base to the forklift's forks; the diagonal brace is made of φ90*5 steel pipe, and is divided into... The cantilever arm is welded to the upper part of the base and the upper part of the column, connecting the base and the column into a stable structure. It is made of φ90*7 steel pipe, with the rear end welded to the column. φ30 through holes are drilled on both sides of the front, and a bushing is welded and fixed into each of the φ30 through holes. A 120mm long and 6.5mm wide elongated hole is provided on the upper front side of the cantilever arm, centered on the bushing, for installing a ratchet. The ratchet is an eccentric design, cut from a 6mm thick steel plate, and installed between the two bushings via a ratchet shaft, allowing for forward and reverse rotation. The ratchet shaft is installed on the bushing with an interference fit, with the ratchet installed in the middle. The tension spring is attached to the ratchet at the upper end and to the inner wall of the cantilever arm at the lower end. The tapered head is made of synthetic rubber and is installed in the inner hole at the front end of the cantilever arm with an interference fit.

[0007] Preferably, the fixing bolt is an M18 high-strength bolt.

[0008] Preferably, the bottom side of the inner tube of the cantilever arm is provided with a tension spring hook, and the two bushings welded and fixed in the φ30 through holes on both sides of the front part have an outer diameter of 30mm and an inner diameter of 20mm. The two bushings are kept concentric when welded and fixed, and the gap between the two bushings is 6.5mm. The bottom side of the rear part is obliquely welded to the column.

[0009] Preferably, the ratchet has an eccentric hole diameter of 20mm and a tension spring hanging hole on one side of the pawl.

[0010] Preferably, the ratchet shaft has a diameter of 20mm and is made of 45# round steel through machining and heat treatment.

[0011] (III) Beneficial Effects

[0012] The beneficial effects of this utility model are as follows: the application of this cantilever arm increases the lifting and stacking height of the forklift, reducing the space occupation; the application of anti-slip ratchet ensures that the ton bags will not slip during transportation and stacking, eliminating safety hazards and ensuring operational safety; the application of the round tube cantilever arm and tapered head avoids local stress concentration and fatigue damage to the ton bag lifting ring, as well as the problem that the sharp edges of the forks and shovels can easily damage the ton bags and lifting ring, extending the service life of the ton bags and reducing turnover and storage costs. Attached Figure Description

[0013] Figure 1 This is a three-dimensional diagram of the forklift transfer ton bag auxiliary lifting frame described in this embodiment of the utility model.

[0014] Figure 2 This is a cross-sectional view of the ratchet, ratchet shaft, and bushing assembly described in an embodiment of this utility model.

[0015] Figure 3 This is a cross-sectional view of the ratchet and tension spring assembly described in an embodiment of this utility model.

[0016] Figure 4 This is a schematic diagram of the tapered head described in an embodiment of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] Figure 1 This is a three-dimensional view of the forklift transfer ton bag auxiliary lifting frame described in this utility model embodiment, including: base 1, column 2, fixing bolt 3, diagonal brace 4, lifting arm 5, ratchet 6, ratchet shaft 7, and tapered head 9.

[0019] Figure 2 This is a cross-sectional view of the ratchet, ratchet shaft, and bushing assembly described in an embodiment of the present invention, including: ratchet 6, ratchet shaft 7, and bushing 10.

[0020] Figure 3 This is a cross-sectional view of the ratchet and spring assembly described in an embodiment of the present invention, including: ratchet 6, ratchet shaft 7, and tension spring 8.

[0021] Figure 4 This is a schematic diagram of the tapered head described in an embodiment of this utility model.

[0022] The specific working principle is as follows:

[0023] An auxiliary lifting frame for forklift transporting ton bags is disclosed. The forklift inserts its forks into a rectangular hole at the rear of the base and tightens the fixing bolts, thus securing the base to the forks. During operation, the forklift drives the auxiliary lifting frame, extending its arm into the ton bag lifting ring to lift the bag. At this point, the bag is in a stable position and will not touch the ratchet. The ratchet pawl, under the tension of the spring, will not pop out, allowing for normal operation. When the bag slips forward and the lifting ring presses against the rear of the eccentric ratchet, the front ratchet pawl rotates upward and pops out to prevent the bag from slipping, thus preventing slippage during transport. Secondly, the height of the auxiliary lifting frame itself increases the lifting and stacking height of the forklift. Thirdly, the round tube design of the auxiliary lifting frame arm, compared to the original square design of the forklift forks, avoids localized stress concentration and fatigue damage to the ton bag lifting ring. Fourthly, the front end of the auxiliary lifting frame arm is equipped with a rubber tapered head, which effectively protects the ton bag and lifting ring from damage.

[0024] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. All equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. An auxiliary lifting frame for forklift transport of ton bags, characterized in that, include: The base (1), column (2), fixing bolt (3), diagonal brace (4), cantilever arm (5), ratchet (6), ratchet shaft (7), tension spring (8), tapered head (9); The base (1) is made of 20# channel steel and 10mm thick steel plate welded into a rectangular tube, and then the rectangular tube is welded into a cuboid. It is installed on the forklift fork through the rectangular hole at the rear end of the cuboid. 18mm diameter holes are drilled on both sides of the rear end of the cuboid, and M18 nuts are welded concentrically with the 18mm diameter holes to fix the fixing bolt (3); The column (2) is made of ∠100*100*10 angle steel welded into a rectangular tube, and the lower end is welded and fixed to the base; The fixing bolt (3) is installed on the M18 nuts on both sides of the rear part of the base (1) to fix the base to the forklift fork; The diagonal brace (4) is made of φ90*5 steel pipe and is welded to the upper part of the base (1) and the upper part of the column (2) to fix the base (1) to the forklift fork. The cantilever arm (5) is connected to the column (2) to form a stable structure. The cantilever arm (5) is made of φ90*7 steel pipe, and the rear end is welded to the column (2). φ30 through holes are drilled on both sides of the front part. A bushing (10) is welded and fixed in each of the φ30 through holes on both sides. A long strip hole with a length of 120mm and a width of 6.5mm is provided on the upper side of the front part with the center of the bushing (10) as the center, for installing the ratchet (6). The ratchet (6) is an eccentric design and is made of steel plate with a thickness of 6mm. It is installed between the two bushings (10) through the ratchet shaft (7) and can rotate in the forward and reverse directions. The ratchet shaft (7) is installed on the bushing (10) by interference fit, and the ratchet (6) is installed in the middle. The tension spring (8) is tied to the ratchet (6) at the upper end and tied to the inner wall of the cantilever arm (5) at the lower end. The tapered head (9) is made of synthetic rubber and is installed in the inner hole at the front end of the cantilever arm (5) by interference fit.

2. The forklift transfer auxiliary lifting frame for ton bags as described in claim 1, characterized in that, The fixing bolt (3) is an M18 high-strength bolt.

3. The forklift transfer auxiliary lifting frame for ton bags as described in claim 1, characterized in that, The cantilever arm (5) has a tension spring (8) hook on the bottom side of the inner tube at the front end. The two bushings (10) with an outer diameter of 30mm and an inner diameter of 20mm are welded and fixed in the φ30 through holes on both sides of the front part. The two bushings are kept concentric when welded and fixed. The gap between the two bushings is 6.5mm. The bottom side of the rear part is obliquely welded to the column (2) with a φ90*5 steel pipe.

4. The forklift transfer auxiliary lifting frame for ton bags as described in claim 1, characterized in that, The ratchet (6) has an eccentric hole diameter of 20mm and a tension spring (8) hanging hole on one side of the pawl.

5. The forklift transfer auxiliary lifting frame for ton bags as described in claim 1, characterized in that, The ratchet shaft (7) has a diameter of 20mm and is made of 45# round steel through machining and heat treatment.

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