High-stability forklift portal frame

Abstract

The utility model relates to the technical field of forklift door frames, and discloses a high-stability forklift door frame which comprises a fork arm carrier, an inner door frame and an outer door frame, two sets of fork bodies are fixedly installed at the front end of the fork arm carrier, and first electric telescopic rods are fixedly installed at the left end and the right end of a fixing column in the middle of the fork arm carrier. The first electric telescopic rods on the left side and the right side penetrate out of the fork arm carrier frame, side fence strips are fixedly mounted at the ends of the first electric telescopic rods, second electric telescopic rods are mounted in mounting grooves in the front sides of the side fence strips, and L-shaped guardrails are fixedly mounted at the other ends of the second electric telescopic rods. According to the high-stability forklift portal frame, the guardrail assembly capable of stretching out and drawing back transversely and longitudinally is fixedly installed at the front end of the pallet fork frame, the guardrail assembly is composed of the side guardrail strips and the L-shaped guardrails, cargoes are prevented from moving left and right or moving forwards to fall off on a pallet fork body, stability is high, and safety is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift door frames, in particular to a high-stability forklift door frame. Background Art

[0002] Forklift truck door frame is the main load-bearing structure of the forklift load handler. The mechanism for lifting goods is also called the door frame. It consists of the inner door frame, outer door frame, fork frame, fork, sprocket, chain, lifting cylinder and tilting cylinder.

[0003] The fork body of the existing forklift gantry is not provided with a protective component. When the goods are placed on the top of the fork body and lifted, they are easy to fall from the left or right or the front due to the incorrect placement of the goods, which has low stability and is unsafe. Utility Model Content

[0004] The purpose of the utility model is to provide a high-stability forklift mast. The utility model discloses a high-stability forklift mast, the front end of which is fixedly mounted with a guardrail assembly that can be retracted laterally and longitudinally. The guardrail assembly is composed of side bars and L-shaped guardrails to prevent cargo from moving left and right on the fork body or falling forward. The stability is high and the fork is relatively safe, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly stable forklift mast, comprising a fork frame, an inner mast and an outer mast, two sets of fork bodies are fixedly installed at the front end of the fork frame, first electric telescopic rods are fixedly installed at both ends of the left and right ends of the fixed column in the middle of the fork frame, the first electric telescopic rods on the left and right sides both pass through the fork frame frame and side rails are fixedly installed at the ends, a second electric telescopic rod is installed in the front mounting groove of the side rail, and an L-shaped guardrail is fixedly installed at the other end of the second electric telescopic rod.

[0006] Preferably, the L-shaped guardrail comprises a plurality of L-shaped rails arranged in a straight and equidistant array along a vertical direction, and the L-shaped rails are fixedly connected by connecting columns.

[0007] Preferably, the fork frame can be lifted and installed on the inner wall of the inner mast through a lifting chain assembly.

[0008] Preferably, the inner mast is liftably mounted on the inner side wall of the outer mast via a lifting hydraulic cylinder.

[0009] Preferably, the left and right sides of the outer door frame are both hinged with tilt hydraulic cylinders through limit hinge assemblies.

[0010] Preferably, guardrails are installed on the back of both upper and lower ends of the outer door frame.

[0011] Preferably, the side rails and L-shaped guardrails are both made of metal.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a high-stability forklift mast, on the front end of which a guardrail assembly capable of being retracted laterally and longitudinally is fixedly installed. The guardrail assembly is composed of side bars and L-shaped guardrails to prevent goods from moving left and right on the fork body or falling forward. The utility model has high stability and is relatively safe. The utility model solves the problem that no protective assembly is arranged outside the fork body of the existing forklift mast, and when goods are placed on the top of the fork body for lifting, they are easy to fall from the left and right or the front end due to incorrect placement of the goods, resulting in low stability and insecurity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. Fork frame; 2. Fork body; 3. Lifting chain assembly; 4. Limit hinge assembly; 5. Tilt hydraulic cylinder; 6. First electric telescopic rod; 7. Side rail; 8. Second electric telescopic rod; 9. L-shaped guardrail; 901, L-shaped rail; 902, connecting column; 10. Inner door frame; 11. Outer door frame; 12. Lifting hydraulic cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4A high-stability forklift gantry shown in the figure comprises a fork frame 1, an inner frame 10 and an outer frame 11. Two sets of fork bodies 2 are fixedly installed at the front end of the fork frame 1. First electric telescopic rods 6 are fixedly installed at both ends of the left and right ends of the fixed column in the middle of the fork frame 1. The first electric telescopic rods 6 on the left and right sides pass through the frame of the fork frame 1 and are fixedly installed with side rails 7 at the ends. A second electric telescopic rod 8 is installed in the mounting groove on the front side of the side rail 7, and an L-shaped guardrail 9 is fixedly installed on the other end of the second electric telescopic rod 8. The utility model discloses a high-stability forklift gantry with a fork frame 1 having a horizontally and longitudinally retractable guardrail assembly fixedly installed at the front end. The guardrail assembly is composed of side rails 7 and L-shaped guardrails 9 to prevent the goods from moving left and right or falling forward on the fork body 2, and the stability is relatively high and safe.

[0021] Furthermore, the L-shaped guardrail 9 includes a plurality of L-shaped bars 901 arranged in a straight and equidistant array along the vertical direction, and the L-shaped bars 901 are fixedly connected by connecting columns 902, so as to achieve good protection effect; further, the fork frame 1 can be lifted and installed on the inner wall of the inner door frame 10 through the lifting chain assembly 3, so as to facilitate the lifting of the fork frame 1; further, the inner door frame 10 can be lifted and installed on the inner wall of the outer door frame 11 through the lifting hydraulic cylinder 12, so as to facilitate the lifting of the inner door frame 10; further, the left and right sides of the outer door frame 11 are hinged with a tilting hydraulic cylinder 5 through a limit hinge assembly 4, so as to facilitate the tilting of the entire forklift door frame to a certain angle for loading or unloading; further, guardrails are installed on the back of the upper and lower ends of the outer door frame 11, so as to achieve good protection effect; further, the side bars 7 and the L-shaped guardrail 9 are both made of metal and have a long service life.

[0022] In this scheme, when in use, a guardrail assembly that can be retracted laterally and longitudinally is fixedly installed at the front end of the fork frame 1 of a high-stability forklift gantry disclosed by the utility model. The guardrail assembly is composed of side rails 7 and L-shaped guardrails 9 to prevent the goods from moving left and right or falling forward on the fork body 2. The stability is high and it is safer. The external power supply is used to extend the first electric telescopic rod 6 and the second electric telescopic rod 8 to the longest state through the external switch, and then the goods are placed on the fork body 2. The length, width and height of the cargo stack are input into the external control panel, and the control panel is adjusted according to the length of the cargo stack. The first electric telescopic rod 6 and the second electric telescopic rod 8 at both ends are intelligently controlled to shorten a certain length, and the cargo stack is pushed to the correct position. Then the side rails 7 are limited from the left and right ends, and the L-shaped guardrails 9 are limited on the left and right sides and the front end of the cargo stack, while the rear end of the cargo stack is close to the fork body 2, which can automatically correct the position of the cargo stack and block the cargo stack from all sides. The stability is high, and when the cargo stack is lifted to a high place by the fork frame 1, it is not easy to fall (the lifting chain assembly 3, the tilting hydraulic cylinder 5, the first electric telescopic rod 6, the second electric telescopic rod 8 and the lifting hydraulic cylinder 12 are all existing products on the market).

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high stability forklift mast, characterized by: The invention comprises a fork frame (1), an inner door frame (10) and an outer door frame (11), wherein two sets of fork bodies (2) are fixedly mounted at the front end of the fork frame (1), first electric telescopic rods (6) are fixedly mounted at both left and right ends of a fixed column in the middle of the fork frame (1), the first electric telescopic rods (6) on both left and right sides extend out of the frame of the fork frame (1) and are fixedly mounted with side rails (7) at their ends, a second electric telescopic rod (8) is mounted in a mounting groove on the front side of the side rail (7), and an L-shaped guardrail (9) is fixedly mounted at the other end of the second electric telescopic rod (8).

2. A highly stable forklift mast according to claim 1, characterized in that: The L-shaped guardrail (9) comprises a plurality of L-shaped rails (901) arranged in a straight line and equidistantly in an array along a vertical direction, and the L-shaped rails (901) are fixedly connected by connecting columns (902).

3. The high stability forklift mast according to claim 1, characterized in that: The fork frame (1) is installed on the inner wall of the inner door frame (10) in a lifting manner via a lifting chain assembly (3).

4. A highly stable forklift mast according to claim 3, characterized in that: The inner door frame (10) is installed on the inner side wall of the outer door frame (11) in a lifting manner by means of a lifting hydraulic cylinder (12).

5. The high stability forklift mast according to claim 4, characterized in that: The left and right sides of the outer door frame (11) are both hingedly connected with a tilting hydraulic cylinder (5) via a limit hinge assembly (4).

6. The high stability forklift mast according to claim 4, characterized in that: Guardrails are installed at the back of both upper and lower ends of the outer door frame (11).

7. The high stability forklift mast according to claim 1, characterized in that: The side rails (7) and the L-shaped guardrails (9) are both made of metal.

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