CN220098347U - Novel gantry crane - Google Patents

Abstract

The utility model discloses a novel gantry crane, which comprises a base, upright posts and a cross beam, wherein the upright posts are arranged between the base and the cross beam; a first transverse frame and a second transverse frame are arranged between the transverse beams; the bottoms of the first transverse frame and the second transverse frame are respectively provided with a hook. The two ends of the first transverse frame and the second transverse frame are respectively arranged in the slide way in a sliding connection mode by arranging the slide way on the transverse beam; sliding grooves are respectively formed in two sides of the first transverse frame and the second transverse frame, matched sliding components are installed, the sliding components can reciprocate along the sliding grooves on the first transverse frame and the second transverse frame respectively, and the sliding components can drive the hooks to reciprocate while moving; through the arrangement, the gantry crane can realize the front-back and left-right movement of the hook in use, thereby meeting the change of different positions of the hook in hoisting and further improving the hoisting efficiency of the gantry crane.

Description

Novel gantry crane

Technical Field

The utility model relates to the technical field of gantry cranes, in particular to a novel gantry crane.

Background

The gantry crane, namely a portal crane (also called a gantry crane), is a bridge crane with a bridge supported on a ground track through two side support legs. The metal structure of the utility model is like a door-shaped frame, two supporting legs are arranged under the bearing main beam, the walking device can directly walk on a track on the ground, and the two ends of the main beam can be provided with overhanging cantilever beams; the portal crane has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, and is mainly used for loading and unloading operations of indoor or outdoor goods, stock yard goods and bulk goods and for stone throwing operations of water stone throwing ships.

The utility model patent CN207466911U discloses a multifunctional salvage navigation mark working ship of a gantry crane and a telescopic crane, which comprises the gantry crane, the telescopic crane and the salvage navigation mark working ship, wherein a control room is arranged on the upper surface of the salvage navigation mark working ship, a lifting hook is arranged at one end of the telescopic crane, a hydraulic rod is arranged at one side of the lifting hook, a telescopic crane bracket is arranged at the lower end of the telescopic crane, a lifting hook fixer is arranged at one end of the telescopic crane bracket, and a hanging ring is arranged at one end of the lifting hook fixer; through being provided with the scraper blade on the slide of portal crane, can conveniently clear up the dust in the slide for the couple is more smooth in the removal of slide, and the couple is blocked in the slide when having reduced the dust too much, makes the phenomenon that the motor burns out, through being provided with detachable lifting hook fixer on flexible hanging, the lifting hook fixer can make the lifting hook fix when using prevent that the lifting hook swing from causing the damage to the staff, when not using, can pull down lifting hook fixer, convenient to use.

Chinese patent CN104261270a discloses a gantry crane, comprising a left front bracket, a left rear bracket, a right front bracket, a right rear bracket, a cross beam, a sliding rail and a pulley, wherein the sliding rail is installed below the pulley, and the pulley and the sliding rail are in sliding fit; the beam is provided with a motor, a transmission wheel set is arranged at the output end of the motor, a transmission chain is arranged at the output end of the transmission wheel set, and a hook is arranged at the output end of the transmission chain; the top ends of the left front bracket, the left rear bracket, the right front bracket and the right rear bracket are respectively provided with a connecting sheet, through holes are formed in the connecting sheets, and the left front bracket, the left rear bracket, the right front bracket and the right rear bracket can rotate relatively; still including first connective bar, second connective bar, third connective bar, fourth connective bar, left sleeve pipe and right sleeve pipe, the bottom of left front support, left back support, right front support and right back support all is provided with the landing leg, still includes landing leg and sleeve pipe down. The left front support, the left rear support, the right front support and the right rear support are matched and pulled apart through the transverse beam, so that the height is increased and reduced, and the height adjustment purpose can be further achieved through the upper supporting leg, the lower supporting leg and the lower sleeve.

Although the technical scheme of the design of the patent can achieve better technical effects, the designed gantry crane cannot achieve front-back and left-right movement of the hook structure, so that adjustment of different positions of the hook in the hoisting process cannot be met, and further the need of changing the hoisting position cannot be met.

Therefore, how to realize the front-back and left-right movement of the hook structure on the gantry crane, and meet the change of different positions of the hook during lifting, so as to improve the lifting efficiency of the gantry crane, is needed to be solved.

Disclosure of Invention

In order to achieve the above purpose, the utility model provides a novel gantry crane, which specifically comprises the following technical scheme:

a novel gantry crane comprises a base, upright posts and a cross beam,

the upright post is arranged between the base and the cross beam;

a first transverse frame and a second transverse frame are arranged between the transverse beams;

the bottoms of the first transverse frame and the second transverse frame are respectively provided with a hook.

Preferably, the first transverse frame and the second transverse frame are arranged between the transverse beams in a sliding connection mode;

the hooks are respectively arranged below the first transverse frame and the second transverse frame in a sliding connection mode.

Preferably, first sliding grooves are formed in two sides of the first transverse frame, sliding components matched with the first sliding grooves are mounted on the first transverse frame, and the sliding components slide back and forth along the length direction of the first sliding grooves;

the sliding component is concave and is slidably arranged in the first sliding grooves at two sides through connecting sliding blocks on the sliding component;

the sliding assembly is characterized in that a first motor is arranged below the sliding assembly, a first transmission assembly is arranged below the first motor, a first transmission chain is arranged on the first transmission assembly, and a first hook is connected below the first transmission chain.

Preferably, two sides of the second transverse frame are provided with second sliding grooves, matched sliding components are arranged in the second sliding grooves, and the sliding components slide back and forth along the length direction of the second sliding grooves;

the sliding component is concave and is slidably arranged in the second sliding grooves at two sides through connecting sliding blocks on the sliding component;

the second motor is arranged below the sliding component, the second transmission component is arranged below the second motor, a second transmission chain is arranged on the second transmission component, and a second hook is connected below the second transmission chain.

Preferably, buffer cushion blocks are arranged at two ends of the first chute and the second chute.

Preferably, one or more sliding components are respectively installed on the first transverse frame and the second transverse frame.

Preferably, a slideway is also arranged on the inner side of the cross beam;

the slide ways are two groups and are respectively positioned at two sides of the central line of the cross beam;

the first transverse frame and the second transverse frame are respectively matched with the slide way for sliding connection, and the first transverse frame and the second transverse frame respectively slide along the length of the slide way in a reciprocating manner.

Preferably, the base is provided with a sliding rail; and a first sliding block is arranged below the upright post and sleeved on the sliding rail.

Preferably, a clamping groove is formed in the lower end of the first sliding block, and the clamping groove is T-shaped; the structure of the sliding rail is that a T-shaped bulge matched with the clamping groove is arranged, and the first sliding block is sleeved on the T-shaped bulge.

Preferably, the width of the first sliding block is larger than that of the upright post; the width of the first sliding block is smaller than that of the base.

The technical scheme of the utility model has the following advantages and beneficial effects:

(1) According to the novel gantry crane, the sliding ways are arranged on the cross beams, two ends of the first transverse frame and two ends of the second transverse frame are respectively arranged in the sliding ways in a sliding connection mode, and therefore the first transverse frame and the second transverse frame can move back and forth on the cross beams along the sliding ways; sliding grooves are respectively formed in two sides of the first transverse frame and the second transverse frame, matched sliding components are installed in the sliding grooves, the sliding components are slidably installed in the sliding grooves through connecting sliding blocks on the sliding components, so that the sliding components can reciprocate along the sliding grooves on the first transverse frame and the second transverse frame respectively, and the sliding components can drive the hooks to reciprocate while moving; through the arrangement, the gantry crane can realize the front-back and left-right movement of the hook in use, so that the hook can reach different hoisting positions in hoisting, and the hoisting efficiency of the gantry crane is improved.

(2) The buffer cushion blocks are arranged at the two ends of the first chute and the second chute, so that the buffer function is realized on the impact force generated when the sliding component reciprocates in the moving process.

(3) According to the utility model, the first sliding block is arranged at the lower end of the upright post of the gantry crane, the T-shaped clamping groove is arranged on the first sliding block, the matched T-shaped bulge is arranged on the sliding rail on the base, and the first sliding block is sleeved on the T-shaped bulge of the rail, so that the upright post can reciprocate along the rail.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the technical means of the present utility model, so that the present utility model may be practiced according to the teachings of the present specification, and so that the above-mentioned and other objects, features and advantages of the present utility model may be better understood, and the following detailed description of the preferred embodiments of the present utility model will be presented in conjunction with the accompanying drawings.

The above and other objects, advantages and features of the present utility model will become more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view of a novel gantry crane according to the present utility model;

FIG. 2 is a schematic view of another angle structure of a novel gantry crane according to the present utility model;

FIG. 3 is a schematic view of another angle structure of a novel gantry crane according to the present utility model;

FIG. 4 is a schematic view of another angle structure of a novel gantry crane according to the present utility model;

FIG. 5 is a right side view of a novel gantry crane of the present utility model;

FIG. 6 is a schematic view of a first slider structure in a novel gantry crane according to the present utility model;

reference numerals: 1. a base; 1-1 sliding rail; 2. a column; 2-1, a first sliding block; 2-2, clamping grooves; 3. a cross beam; 4. a first cross frame; 4-1, a first chute; 5. a sliding assembly; 5-1, connecting a sliding block; 6. a second cross frame; 7. a first motor; 8. a first transmission assembly; 9. a first drive chain; 10. a first hook; 11. a second motor; 12. a second transmission assembly; 13. a second drive chain; 14. and a second hook.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the utility model. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the utility model. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "this embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the "one embodiment" or "this embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.

The term "at least one" is herein merely an association relation describing an associated object, meaning that there may be three kinds of relations, e.g., at least one of a and B may represent: a exists alone, A and B exist together, and B exists alone.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

This embodiment introduces a novel gantry crane structure. The gantry crane comprises a base 1, an upright post 2 and a cross beam 3,

the upright post 2 is arranged between the base 1 and the cross beam 3;

a first transverse frame 4 and a second transverse frame 6 are arranged between the transverse beams 3;

hooks are arranged at the bottoms of the first transverse frame 4 and the second transverse frame 6.

Further, the first transverse frame 4 and the second transverse frame 6 are arranged between the transverse beams 3 in a sliding connection manner;

the hooks are respectively arranged below the first transverse frame 4 and the second transverse frame 6 in a sliding connection mode.

Further, a first chute 4-1 is arranged at two sides of the first transverse frame 4, and a sliding component 5 matched with the first chute 4-1 is mounted on the first transverse frame 4, and the sliding component 5 slides back and forth along the length direction of the first chute 4-1;

the sliding component 5 is concave and is slidably arranged in the first sliding grooves 4-1 at two sides through the connecting sliding blocks 5-1 on the sliding component 5;

the sliding assembly 5 installs the first motor 7 below, first drive assembly 8 is installed to first motor 7 below, be provided with first drive chain 9 on the first drive assembly 8, first drive chain 9 below is connected with first couple 10.

Further, two sides of the second transverse frame 6 are provided with second sliding grooves 6-1, matched sliding assemblies 5 are installed in the second sliding grooves 6-1, and the sliding assemblies 5 slide back and forth along the length direction of the second sliding grooves 6-1;

the sliding component 5 is concave and is slidably arranged in the second sliding grooves 6-1 at two sides through the connecting sliding blocks 5-1 on the sliding component 5;

the second motor 11 is installed below the sliding component 5, the second transmission component 12 is installed below the second motor 11, the second transmission component 12 is provided with the second transmission chain 13, and the second hook 14 is connected below the second transmission chain 13.

The first transverse frame and the second transverse frame can be respectively provided with one or more sliding components, and the sliding components are correspondingly provided with a motor, a transmission component, a transmission chain and a hook.

Further, both ends of the first chute 4-1 and the second chute 6-1 are provided with buffer pads, and the buffer pads play a role in buffering impact force generated when the sliding assembly reciprocates in the moving process.

Further, a slideway 3-1 is arranged on the inner side of the cross beam 3;

the number of the slide ways 3-1 is two, and the slide ways are respectively positioned at two sides of the central line of the cross beam 3;

the first transverse frame 4 and the second transverse frame 6 are respectively matched with the slide way 3-1 for sliding connection, the first transverse frame 4 and the second transverse frame 6 respectively slide along the length of the slide way 3-1 in a reciprocating manner, and the transverse frames are driven to slide along the slide rails by an operation motor in the use process.

Further, a sliding rail 1-1 is arranged on the base 1;

a first sliding block 2-1 is arranged below the upright post 2, and the first sliding block 2-1 is sleeved on the sliding rail 1-1. The width of the first sliding block 2-1 is larger than that of the upright post 2; the width of the first sliding block 2-1 is smaller than that of the base 1.

In the embodiment, the sliding way is arranged on the cross beam, and two ends of the first transverse frame and the second transverse frame are respectively arranged in the sliding way in a sliding connection mode, so that the first transverse frame and the second transverse frame can move back and forth on the cross beam along the sliding way; sliding grooves are respectively formed in two sides of the first transverse frame and the second transverse frame, matched sliding components are installed in the sliding grooves, the sliding components are slidably installed in the sliding grooves through connecting sliding blocks on the sliding components, so that the sliding components can reciprocate along the sliding grooves on the first transverse frame and the second transverse frame respectively, and the sliding components can drive the hooks to reciprocate while moving; through the arrangement, the gantry crane can realize the front-back and left-right movement of the hook in use, so that the hook can reach different hoisting positions in hoisting, and the hoisting efficiency of the gantry crane is improved.

Example 2

Based on embodiment 1, this embodiment further describes the structure of the first slider.

Fig. 5 is a right side view of a novel gantry crane according to the present utility model, and fig. 6 is a schematic view of a first slider in the novel gantry crane according to the present utility model.

The base 1 is provided with a sliding rail 1-1, a first sliding block 2-1 is installed below the upright post 2, and the first sliding block 2-1 is sleeved on the sliding rail 1-1. The lower end of the first sliding block 2-1 is provided with a clamping groove 2-2 which is T-shaped; the sliding rail 1-1 is in a T-shaped bulge matched with the clamping groove 2-1, and the first sliding block is sleeved on the T-shaped bulge. Through the design, realize first slider suit on the slide rail of base, the stand carries out reciprocating motion along the track, so connected relationship moreover, firm and slip convenience.

Example 3

Based on the above embodiments 1 and 2, in this embodiment, two sets of sliding assemblies are slidably mounted on the first beam and the second beam, respectively. Referring to fig. 1, fig. 1 is a schematic structural view of a novel gantry crane according to the present utility model.

In the embodiment, the gantry crane is used for the water stone throwing operation, and before the gantry crane is used, a stone throwing ship and a working ship are connected through welding of a transverse frame, the two groups of the bases 1 of the gantry crane are respectively and fixedly arranged on one side of the stone throwing ship and one side of the working ship, a stone throwing area is arranged in a space between the stone throwing ship and the working ship, a stone throwing bin is arranged between the stone throwing ship and the working ship, the stone throwing bin is arranged between the bases 1, the bottom of the stone throwing bin is of a split door structure, the stone can be opened and closed downwards during stone throwing, and stones fall from the stone throwing bin. A fixed upright post 2 is arranged on the base 1, and a cross beam 3 is arranged above the upright post 2; a first transverse frame 4 and a second transverse frame 5 are arranged between the transverse beams 3 in a sliding connection mode; the bottoms of the first transverse frame 4 and the second transverse frame 5 are respectively provided with a hook, and the hooks are arranged below the first transverse frame 4 and the second transverse frame 6 in a sliding connection mode.

As shown in fig. 1, 2 and 3, fig. 1 is a schematic structural view of a novel gantry crane according to the present utility model, fig. 2 is a schematic structural view of another angle of the novel gantry crane according to the present utility model, and fig. 3 is a schematic structural view of another angle of the novel gantry crane according to the present utility model.

The first transverse frame 4 is provided with a first sliding groove 4-1 on two sides, and a sliding component 5 matched with the first sliding groove 4-1 is arranged on the first transverse frame 4. The sliding components 5 are arranged on the first cross beam 4 in two groups, and the two groups of sliding components 5 can slide back and forth along the length of the first sliding chute 4-1 in different directions.

The sliding component 5 is concave, and is slidably arranged in the first sliding grooves 4-1 at two sides through the connecting sliding blocks 5-1 on the sliding component 5.

The first motor 7 is installed respectively to two sets of slip subassembly 5 below, and first drive assembly 8 is installed to first motor 7 below, is provided with first drive chain 9 on the first drive assembly 8, and first couple 10 is connected with to first drive chain 9 below.

Fig. 4 is a schematic view of another angle structure of the novel gantry crane according to the present utility model, as shown in fig. 4. Two sides of the second transverse frame 6 are provided with second sliding grooves 6-1, two matched groups of sliding components 5 are arranged in the second sliding grooves 6-1, and the two groups of sliding components 5 can also slide back and forth in different directions along the length of the second sliding grooves 6-1.

The sliding component 5 is concave, and is slidably arranged in the second sliding grooves 6-1 at two sides through the connecting sliding blocks 5-1 on the sliding component 5.

The second motor 11 is installed respectively below two sets of slip subassembly 5, and second drive assembly 12 is installed to second motor 11 below, sets up second drive chain 13 on the second drive assembly 12, and second couple 14 is connected to second drive chain 13 below.

Both ends of the first chute 4-1 and the second chute 6-1 are provided with buffer cushion blocks.

The inner side of the cross beam 3 is provided with two groups of slide ways 3-1, and the slide ways 3-1 are respectively positioned at two sides of the center line of the cross beam 3; the first transverse frame 4 and the second transverse frame 6 are respectively matched with the slideway 3-1 for sliding connection, and the first transverse frame 4 and the second transverse frame 6 can respectively slide back and forth along the length of the slideway 3-1.

The base 1 is provided with a sliding rail 1-1; a first sliding block 2-1 is arranged below the upright post 2, and the first sliding block 2-1 is sleeved on the sliding rail 1-1 to realize the movement of the gantry crane.

In this embodiment, through with base fixed mounting respectively in the one side of riprap ship and workboat, the length of base can set up as required, and the gantry crane can follow the slide rail and slide reciprocally. During operation, after the stone filled by the net bag is placed in the stone throwing bin, the net bag is hung by the hooks on the first transverse frame and the second transverse frame, the hooks below the motor are controlled, the stone throwing bin at the bottom is opened downwards, the net bag is placed underwater with the stone, the net bag can be submerged, and then accurate falling positions of stones are achieved. Two sets of sliding components that install respectively on first crossbearer and the second crossbearer, first slider slides along the slide rail, has improved the lifting efficiency and the stability of stone throwing in-process longmen hoist and mount greatly, and longmen hoist and mount remove nimble, convenient.

According to the utility model, the gantry crane can realize the front-back and left-right movement of the hook in use, so that the hook can reach different hoisting positions in hoisting, and the hoisting efficiency of the gantry crane is improved; the length of base can set up according to the operation needs, and the gantry crane can slide along the slide rail, and it is nimble convenient to remove.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (10)

1. A novel gantry crane is characterized by comprising a base (1), an upright post (2) and a cross beam (3),

the upright post (2) is arranged between the base (1) and the cross beam (3);

a first transverse frame (4) and a second transverse frame (6) are arranged between the transverse beams (3);

the bottoms of the first transverse frame (4) and the second transverse frame (6) are respectively provided with a hook.

2. A new gantry crane according to claim 1, characterized in that the first and second cross frames (4, 6) are arranged between the cross beams (3) in a sliding connection;

the hooks are respectively arranged below the first transverse frame (4) and the second transverse frame (6) in a sliding connection mode.

3. A novel gantry crane according to any one of claims 1 or 2, characterized in that the first cross frame (4) is provided with first sliding grooves (4-1) on both sides, and a sliding component (5) matched with the first sliding grooves (4-1) is arranged on the first cross frame (4), and the sliding component (5) slides reciprocally along the length direction of the first sliding grooves (4-1);

the sliding component (5) is concave, and is slidably arranged in the first sliding grooves (4-1) at two sides through connecting sliding blocks (5-1) on the sliding component (5);

the sliding assembly is characterized in that a first motor (7) is arranged below the sliding assembly (5), a first transmission assembly (8) is arranged below the first motor (7), a first transmission chain (9) is arranged on the first transmission assembly (8), and a first hook (10) is connected below the first transmission chain (9).

4. A novel gantry crane according to claim 3, characterized in that the second cross frame (6) is provided with second sliding grooves (6-1) on both sides, and the sliding components (5) are arranged in the second sliding grooves (6-1),

the sliding component (5) slides back and forth along the length direction of the second sliding groove (6-1);

the sliding component (5) is concave, and is slidably arranged in the second sliding grooves (6-1) at two sides through the connecting sliding blocks (5-1) on the sliding component (5);

the sliding assembly is characterized in that a second motor (11) is arranged below the sliding assembly (5), a second transmission assembly (12) is arranged below the second motor (11), a second transmission chain (13) is arranged on the second transmission assembly (12), and a second hook (14) is connected below the second transmission chain (13).

5. The novel gantry crane according to claim 4, wherein buffer cushion blocks are arranged at two ends of the first chute (4-1) and the second chute (6-1).

6. A novel gantry crane according to claim 3, characterized in that one or more sliding assemblies (5) are mounted on the first (4) and second (6) cross frames, respectively.

7. A novel gantry crane according to any one of claims 1 or 2, characterized in that the inside of the beam (3) is also provided with a slideway (3-1);

the number of the slide ways (3-1) is two, and the slide ways are respectively positioned at two sides of the central line of the cross beam (3);

the first transverse frame (4) and the second transverse frame (6) are respectively matched with the slide way (3-1) for sliding connection, and the first transverse frame (4) and the second transverse frame (6) respectively slide back and forth along the length of the slide way (3-1).

8. The novel gantry crane according to claim 1, wherein the base (1) is provided with a sliding rail (1-1);

a first sliding block (2-1) is arranged below the upright post (2), and the first sliding block (2-1) is sleeved on the sliding rail (1-1).

9. The novel gantry crane according to claim 8, wherein a clamping groove (2-2) is formed in the lower end of the first sliding block (2-1), and the clamping groove (2-2) is T-shaped; the sliding rail (1-1) is structurally characterized in that the sliding rail is a T-shaped protrusion (1-2) matched with the clamping groove, and the first sliding block (2-1) is sleeved on the T-shaped protrusion (1-2).

10. A new gantry crane according to any one of claims 8 or 9, characterized in that the width of the first slider (2-1) is greater than the upright (2); the width of the first sliding block (2-1) is smaller than that of the base (1).