Novel locking structure of portal crane

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a novel locking structure of a portal crane, which comprises a frame, a locking seat, a locking block and a locking pin, and the locking seat is firmly and fixedly mounted on the frame of the portal crane in a welding manner. According to the novel locking structure of the portal crane, the limiting block at the bottom of the locking block is inserted into the central guide groove of the locking seat, it is ensured that the axes of the limiting block and the locking seat are aligned, during installation, the locking pin horizontally penetrates through the through hole in the side wall of the locking seat and the pin hole of the limiting block, at the moment, the clamping head is automatically clamped into the annular clamping groove of the locking pin under the action of the locking spring, and self-locking is completed; when unlocking is needed, an operator buckles fingers into a buckle groove of a pull rod and pulls the pull rod outwards to enable a sliding rod to drive a clamping head to be separated from a clamping groove, the locking pin can be pulled out, rapid separation of the locking block is facilitated, when a portal crane works, longitudinal impact force borne by the locking block is transmitted to a gasket through a lower abutting block, an elastic spring is compressed to deform, and instantaneous impact is converted into elastic potential energy.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering machinery technical field, concretely is a novel locking structure of door machine. BACKGROUND

[0002] As a crucial equipment in logistics operation sites such as ports and wharfs, the door machine, with the "door" in its name, symbolizes that the equipment is like a large door, controlling the passage of cargo loading and unloading. It is the key hub connecting the transfer of goods between ships and wharfs, like a door, through which goods circulate between different transportation tools and storage areas. The main function of this equipment is to realize the rapid loading and unloading and efficient turnover of goods, and its efficient working capacity and flexible operating performance make it an indispensable part of the modern logistics system. The emergence of the door machine greatly improves the efficiency of cargo loading and unloading, reduces the labor intensity of manual handling, and makes an important contribution to the development of the logistics industry.

[0003] However, the existing door machine has many problems in locking. The traditional door machine locking structure is often complex, and the operator needs to perform multiple steps to complete the locking and unlocking action. This not only increases the difficulty and time cost of operation, but in emergency situations, the locking may fail due to untimely or erroneous operation, causing safety accidents. Some door machine locking devices are prone to wear and tear and aging due to long-term use. For example, the cooperation between the locking pin and the locking hole may become loose, reducing the reliability of the locking; the elastic coefficient of the locking spring may change, making the locking block unable to provide enough pressure to ensure the stable locking of the door machine. In addition, the locking structure of some door machines lacks effective protection measures and is easily affected by external environments such as dust and moisture entering the locking components, causing corrosion and damage to the components and affecting the normal operation of the locking structure. The existence of these problems not only reduces the working efficiency of the door machine, but also increases the maintenance cost and safety risk of the equipment.

[0004] Therefore, it is necessary to provide a novel locking structure of a door machine. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a novel locking structure of a door machine, which has the advantages of improving the locking effect and safety of the door machine and solving the problems raised in the background art.

[0006] The utility model provides the following technical scheme: A novel locking structure of door machine, including frame, locking seat, locking block and locking pin, the locking seat is firmly fixed and installed on the frame of door machine through welding mode, provides stable support base for whole locking structure, the locking block sets up in the positive upper of locking seat, the bottom fixed connection of locking block has limit stop, the limit stop is inserted in the inside of locking seat, the locking pin passes through locking seat and limit stop, fixes the connection of locking block and locking seat.

[0007] Preferably, the welding between the locking seat and the frame adopts a multi-layer multi-pass welding process, first performs a backing welding to ensure root fusion of the weld, then performs a filling welding and a surface welding to make the weld surface smooth and ensure high connection strength.

[0008] Preferably, the bottom of the locking block is fixedly connected with a lower block at each corner, the top of the locking seat is provided with a groove at each corner, the inner bottom of the groove is fixedly connected with a elastic spring, the top of the elastic spring is fixedly connected with a gasket, and the lower block corresponds to the position of the groove.

[0009] Preferably, the side surface of the locking seat is provided with two insertion grooves, the insertion grooves are slidably connected with clamping joints, the surface of the locking pin is provided with a clamping groove, and the clamping groove is clamped with the clamping joint.

[0010] Preferably, one end of the clamping joint is fixedly connected with a locking spring, and the other end of the locking spring is fixedly connected with the inner wall of the insertion groove.

[0011] Preferably, the surface of one side of the clamping joint is fixedly connected with a sliding rod, the end of the sliding rod is fixedly connected with a pull rod, the edge of the pull rod is provided with a buckling groove, the side surface of the locking seat is provided with an inlay groove, and the model specification of the pull rod matches the inlay groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The limit stop at the bottom of the locking block is inserted into the central guide groove of the locking seat to ensure that the axes of the two are aligned, when installing, the locking pin is horizontally inserted through the through hole of the side wall of the locking seat and the pin hole of the limit stop, at this time, the clamping joint is automatically clamped into the annular clamping groove of the locking pin under the action of the locking spring, self-locking is completed, when unlocking, the operator's finger is buckled into the buckling groove of the pull rod, the sliding rod is pulled outward to drive the clamping joint to separate from the clamping groove, the locking pin can be pulled out, the lower block at the bottom of the locking block is slightly lifted under the jacking action of the elastic spring, the locking block is quickly separated, when the door machine is working, the longitudinal impact force received by the locking block is transmitted to the gasket through the lower block, the elastic spring is compressed to generate deformation, instantaneous impact is converted into elastic potential energy, direct rigid impact on the locking seat is reduced, the locking effect is good, and the safety is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is a schematic view of the overall structure of the device of the present application.

[0016] Figure 2 It is a schematic view of the locking block structure of the present application.

[0017] Figure 3 It is a schematic view of the locking seat structure of the present application.

[0018] Figure 4 It is a schematic view of the locking seat sectional structure of the present application.

[0019] In the drawings, the component list represented by each number is as follows:

[0020] 100, rack;

[0021] 200, locking seat; 201, groove; 202, gasket; 203, elastic spring; 204, plug-in slot; 205, inlay slot;

[0022] 300, locking block; 301, lower block; 302, limiting block;

[0023] 400, locking pin; 401, clamping groove;

[0024] 500, clamping head; 501, sliding rod; 502, locking spring; 503, pull rod; 504, buckle groove. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] Referring to Figures 1-4The utility model discloses a new type locking structure of a door machine, which comprises a rack 100, a locking seat 200, a locking block 300 and a locking pin 400, characterized in that: the locking seat 200 is firmly fixed and installed on the rack 100 of the door machine by welding, thereby providing a stable support base for the whole locking structure; the locking block 300 is arranged directly above the locking seat 200; the bottom end of the locking block 300 is fixedly connected with a limiting block 302, which is inserted into the inside of the locking seat 200; and the locking pin 400 penetrates through the locking seat 200 and the limiting block 302, thereby fixedly connecting the locking block 300 with the locking seat 200.

[0027] Further preferably, the welding between the locking seat 200 and the rack 100 adopts a multi-layer and multi-pass welding process, i.e., first performing a backing welding to ensure the root penetration of the welding seam, and then performing a filling welding and a surface welding to make the surface of the welding seam smooth and flat, thereby ensuring high connection strength.

[0028] Further preferably, the bottom end of the locking block 300 is fixedly connected with a lower abutting block 301 at four corners thereof; the top end of the locking seat 200 is provided with a recess 201 at four corners thereof; the inner bottom of the recess 201 is fixedly connected with a elastic spring 203; the top end of the elastic spring 203 is fixedly connected with a gasket 202; and the lower abutting block 301 corresponds in position to the recess 201.

[0029] Further preferably, the side surface of the locking seat 200 is provided with two insertion grooves 204; the inside of the insertion groove 204 is slidably connected with a clamping head 500; the surface of the locking pin 400 is provided with a clamping groove 401; and the clamping groove 401 is clamped with the clamping head 500.

[0030] Further preferably, one end of the clamping head 500 is fixedly connected with a locking spring 502; the other end of the locking spring 502 is fixedly connected with the inner wall of the insertion groove 204.

[0031] Further preferably, one side surface of the clamping head 500 is fixedly connected with a sliding rod 501; the end head of the sliding rod 501 is fixedly connected with a pull rod 503; the edge of the pull rod 503 is provided with a buckling groove 504; the side surface of the locking seat 200 is provided with an inlay groove 205; and the pull rod 503 is consistent in type and specification with the inlay groove 205.

[0032] Working principle: the limiting block 302 at the bottom of the locking block 300 is inserted into the central guide groove of the locking seat 200, ensuring that the axes of the two are aligned, during installation, the locking pin 400 is horizontally inserted through the through hole of the side wall of the locking seat 200 and the pin hole of the limiting block 302, at this time, the clamping head 500 is automatically clamped into the annular clamping groove 401 of the locking pin 400 under the action of the locking spring 502, and self-locking is completed, when unlocking is needed, the operator's finger is buckled into the buckle groove 504 of the pull rod 503, and the sliding rod 501 is driven to make the clamping head 500 disengage from the clamping groove 401, so that the locking pin 400 can be pulled out, and the lower abutting block 301 at the bottom of the locking block 300 is slightly lifted under the lifting action of the elastic spring 203, so that the locking block 300 can be quickly separated, when the door machine is working, the longitudinal impact force received by the locking block 300 is transmitted to the gasket 202 through the lower abutting block 301, the elastic spring 203 is compressed to generate deformation, and the instantaneous impact is converted into elastic potential energy, so that the direct rigid impact on the locking seat 200 is reduced.

[0033] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific situation.

[0035] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new type of locking structure of a portal crane, comprising a frame (100), a locking seat (200), a locking block (300) and a locking pin (400), characterized in that: The locking seat (200) is firmly fixed on the frame (100) of the door machine by welding, providing a stable support foundation for the entire locking structure, the locking block (300) is arranged above the locking seat (200), the bottom end of the locking block (300) is fixedly connected with a limiting block (302), the limiting block (302) is inserted into the locking seat (200), the locking pin (400) passes through the locking seat (200) and the limiting block (302), and the locking block (300) and the locking seat (200) are fixedly connected.

2. The new type of locking structure of a door machine according to claim 1, characterized in that: The welding between the locking seat (200) and the frame (100) adopts a multi-layer and multi-pass welding process, first performs a backing welding to ensure that the root of the welding seam is penetrated, then performs a filling welding and a surface welding to make the welding seam smooth and ensure high connection strength.

3. The new type of locking structure of a door machine according to claim 1, characterized in that: The bottom end of the locking block (300) is fixedly connected with a lower abutting block (301) at four corners, the top end of the locking seat (200) is provided with a recess (201) at four corners, the inner bottom of the recess (201) is fixedly connected with an elastic spring (203), the top end of the elastic spring (203) is fixedly connected with a gasket (202), and the lower abutting block (301) corresponds in position to the recess (201).

4. The new type of locking structure of a door machine according to claim 1, characterized in that: The side surface of the locking seat (200) is provided with two insertion grooves (204), the insertion grooves (204) are slidably connected with clamping joints (500), the surface of the locking pin (400) is provided with a clamping groove (401), and the clamping groove (401) is clamped with the clamping joint (500).

5. The new type of locking structure of a door machine according to claim 4, characterized in that: One end of the clamping joint (500) is fixedly connected with a locking spring (502), and the other end of the locking spring (502) is fixedly connected with the inner wall of the insertion groove (204).

6. The new type of locking structure of a door machine according to claim 4, characterized in that: The surface of one side of the clamping joint (500) is fixedly connected with a sliding rod (501), the end of the sliding rod (501) is fixedly connected with a pull rod (503), the edge of the pull rod (503) is provided with a buckling groove (504), the side surface of the locking seat (200) is provided with an inlay groove (205), and the pull rod (503) is matched with the inlay groove (205) in type and specification.

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