European style crane trolley buffering protection device

Abstract

The utility model relates to the technical field of crane devices, and particularly discloses a European style crane trolley buffer protection device. A limiting end seat comprises a groove-shaped piece fixed at a rail beam limiting end; the hinge piece comprises an upper beam and a lower beam which are slidably clamped on the upper side and the lower side of the middle of an inner cavity of the groove-shaped piece respectively, a lug plate is arranged in the middle of the bottom end of the upper beam, a notch hinged to the lug plate is formed in the middle of the top end of the lower beam, and the hinge position of the upper beam and the lower beam is in a forward arching state. The two vertical elastic pieces are arranged between the top end of the upper beam and the top of an inner cavity of the groove-shaped piece and between the bottom end of the lower beam and the bottom of the inner cavity of the groove-shaped piece respectively. The connecting plate is fixed to the outer wall of the side, facing the limiting end, of the crane trolley, the front end of the horizontal batten is perpendicularly fixed to the rear wall of the connecting plate, the horizontal batten is right opposite to the bottom of the notch, the horizontal batten is sleeved with the jacking plate in a sliding mode, and the horizontal elastic piece is arranged between the jacking plate and the connecting plate. The problem that the European style crane trolley is difficult to stop stably in time after moving to the limiting end is well solved.

Description

Technical Field

[0001] This utility model relates to the field of crane device technology, specifically a buffer protection device for a European-style crane trolley. Background Technology

[0002] European cranes are characterized by their light weight, compact structure, and low energy consumption. A trolley and lifting mechanism are mounted on the bridge frame, and the trolley moves back and forth along the bridge's rails to move materials in three-dimensional space. European cranes employ a unique design concept, featuring small size, light weight, and low wheel pressure. Compared to traditional cranes, they have the lowest headroom and the highest lifting height, effectively increasing the usable workspace in existing factories and warehouses, making them widely used in factories and warehouses.

[0003] When existing European-style crane trolleys travel along the rail beam and brake at the limit end, they often continue to slide a certain distance due to inertia. Therefore, buffer protection devices are often installed at the limit end of the rail beam. Traditional buffer devices are mostly elastic impact buffers, which rely on the buffer to generate a rebound force through deformation after impacting the limit end, thus buffering the impact force. However, after the trolley moves to the limit end and is compressed, the buffer will produce a certain rebound. That is, the European-style crane trolley will rebound a certain displacement in the opposite direction after braking at the limit end, causing violent swinging at its hook, which can easily create a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a buffer protection device for European-style crane trolleys to solve the problem that European-style crane trolleys are difficult to stop in time after moving to the limit end.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a European-style crane trolley buffer protection device, wherein the limiting end seat includes a grooved component fixed to the limiting end of the rail beam; the hinge component includes an upper beam and a lower beam respectively slidably mounted on the upper and lower sides of the inner cavity of the grooved component, the lower beam having an ear plate at the middle of its bottom end, and the lower beam having a slot at the middle of its top end that is hinged to the ear plate, the hinge joint between the upper beam and the lower beam being arched forward; two vertical elastic members are respectively disposed between the top end of the upper beam and the top of the inner cavity of the grooved component, and between the bottom end of the lower beam and the bottom of the inner cavity of the grooved component; the follower component includes a connecting plate fixed to the outer wall of the crane trolley facing the limiting end, a horizontal strip with its front end vertically fixed to the rear wall of the connecting plate and directly opposite the bottom of the slot, a jacking plate slidably mounted on the horizontal strip, and a horizontal elastic member disposed between the jacking plate and the connecting plate.

[0006] Preferably, the upper beam has a first groove at the top center and the lower beam has a second groove at the bottom center, and one end of the vertical elastic member is respectively hinged to the first groove and the second groove.

[0007] Preferably, the inner cavity of the grooved component is fixed with a partition extending in the horizontal direction near the top and bottom ends, and a sleeve hole is provided in the middle of the partition near the front end. The vertical elastic component includes a connecting block that is hinged to and matched with the first and second slots, a vertical rod with one end fixed to the connecting block and the other end slidably sleeved in the sleeve hole, and a vertical spring sleeved on the outside of the vertical rod.

[0008] Preferably, the top and bottom ends of the rear wall of the grooved component are respectively provided with fixing frames that are fixedly connected to the limiting end of the rail beam.

[0009] Preferably, the center of the top plate is provided with a rectangular hole that is slidably fitted with the horizontal strip, the top and bottom ends of the center of the front wall of the top plate are respectively vertically fixed with guide rods, the top and bottom ends of the center of the rear wall of the connecting plate are respectively vertically fixed with sleeves that are slidably fitted with the guide rods, and the rear part of the guide rod is fitted with a horizontal spring whose front end is supported on the rear end face of the sleeve.

[0010] Preferably, the rear end of the horizontal strip is provided with a wedge-shaped structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The European-style crane trolley buffer protection device involved in this utility model first provides an elastic buffer structure when the European-style crane trolley moves along the rail beam to the limit end. When the vertical elastic element is compressed to the limit state, the upper beam and the lower beam are in a straight line state, and the ear plate just clamps the horizontal strip in the slot, so as to realize the timely stopping and stabilization of the European-style crane trolley. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the limiting end seat of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the hinge component of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the vertical elastic element of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the follower component of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the top moving plate of this utility model.

[0019] In the diagram: 1-Limiting end seat; 1.1-Slotted part; 1.2-Fixing bracket; 1.3-Partition plate; 1.3.1-Sleeve hole;

[0020] 2-Hinged component; 2.1-Upper beam; 2.1.1-Ear plate; 2.1.2-Slot one; 2.2-Lower beam; 2.2.1-Gate; 2.2.2-Slot two;

[0021] 3-Vertical elastic element; 3.1-Connecting block; 3.2-Vertical rod; 3.3-Vertical spring;

[0022] 4-Follower component; 4.1-Connecting plate; 4.2-Horizontal strip; 4.3-Pushing plate; 4.3.1-Rectangular hole; 4.3.2-Guide rod; 4.4-Sleeve; 4.5-Horizontal spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a buffer protection device for a European-style crane trolley, wherein the limiting end seat 1 includes a vertically extending groove-shaped component 1.1, and the top and bottom ends of the rear wall of the groove-shaped component 1.1 are respectively provided with fixing brackets 1.2 that are fixedly connected to the limiting end of the rail beam. A horizontally extending partition plate 1.3 is fixedly installed in the inner cavity of the groove-shaped component 1.1 near the top and bottom ends, and a sleeve hole 1.3.1 is provided in the middle of the partition plate 1.3 near the front end.

[0025] The hinge component 2 includes an upper beam 2.1 and a lower beam 2.2, which are respectively slidably mounted on the upper and lower sides of the inner cavity of the groove-shaped component 1.1. The upper beam 2.1 has an ear plate 2.1.1 at the bottom center, and the lower beam 2.2 has a slot 2.2.1 at the top center for hinge with the ear plate 2.1.1. The hinge joint between the upper beam 2.1 and the lower beam 2.2 is arched forward. In addition, the upper beam 2.1 has a first slot 2.1.2 at the top center, and the lower beam 2.2 has a second slot 2.2.2 at the bottom center.

[0026] Two vertical elastic elements 3 are respectively located between the top of the upper beam 2.1 and the top of the inner cavity of the grooved component 1.1, and between the bottom of the lower beam 2.2 and the bottom of the inner cavity of the grooved component 1.1. Each vertical elastic element 3 includes a connecting block 3.1 that is hinged to either slot one 2.1.2 or slot two 2.2.2; a vertical rod 3.2 with one end fixed to the connecting block 3.1 and the other end slidably fitted into the sleeve hole 1.3.1; and a vertical spring 3.3 fitted onto the outside of the vertical rod 3.2. That is, the two ends of the vertical spring 3.3 are supported on the connecting block 3.1 and the partition plate 1.3, respectively.

[0027] The follower 4 includes a connecting plate 4.1 fixed to the outer wall of the crane trolley facing the limiting end, a horizontal strip 4.2 whose front end is vertically fixed to the rear wall of the connecting plate 4.1 and directly opposite the bottom of the slot 2.2.1, a jacking plate 4.3 slidably fitted onto the horizontal strip 4.2, and a horizontal elastic element disposed between the jacking plate 4.3 and the connecting plate 4.1. The jacking plate 4.3 has a rectangular hole 4.3.1 in the middle that slides and matches the horizontal strip 4.2. Guide rods 4.3.2 are vertically fixed to the top and bottom ends of the middle of the front wall of the jacking plate 4.3, and sleeves 4.4 are vertically fixed to the top and bottom ends of the middle of the rear wall of the connecting plate 4.1 that slide and match the guide rods 4.3.2. A horizontal spring 4.5, whose front end is supported on the rear end face of the sleeve 4.4, is fitted onto the rear of the guide rod 4.3.2.

[0028] In summary, the European-style crane trolley, carrying the follower 4, moves along the rail beam. When the European-style crane trolley approaches the limiting end of the rail beam, the end of the horizontal strip 4.2 first inserts into the slot 2.2.1, and then the push plate 4.3 presses against the hinge between the upper beam 2.1 and the lower beam 2.2. As the European-style crane trolley continues to move, the guide rod 4.3.2 gradually slides into the sleeve 4.4, and the horizontal spring 4.5 is gradually compressed. At the same time, the vertical rod 3.2 also moves relative to the sleeve hole 1.3.1, that is, the vertical spring 3.3 is gradually compressed.

[0029] With the above actions, the upper beam 2.1 and the lower beam 2.2 gradually tend to be in a straight line state. When the two are in a vertical state, the ear plate 2.1.1 at the bottom of the upper beam 2.1 just presses the horizontal strip 4.2 onto the bottom surface of the inner cavity of the slot 2.2.1, thereby preventing the European-style crane trolley from being horizontally bounced away, so as to achieve timely stopping after braking.

[0030] When the trolley restarts and moves in the opposite direction, a pulling force is applied to the follower 4, which pulls the hinge of the hinge 2 forward through the horizontal strip 4.2, so that the hinge 2 is reset and the clamping state of the horizontal strip 4.2 is released.

[0031] To facilitate the smooth insertion of the horizontal slat 4.2 into the slot 2.2.1, a wedge-shaped structure is provided at the rear end of the horizontal slat 4.2.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A European-style crane trolley buffer protection device, characterized in that, include: Limiting end seat (1), the limiting end seat (1) includes a grooved part (1.1) fixed to the limiting end of the rail beam; The hinge (2) includes an upper beam (2.1) and a lower beam (2.2) that are respectively slidably mounted on the upper and lower sides of the inner cavity of the grooved part (1.1). The upper beam (2.1) has an ear plate (2.1.1) at the bottom center and the lower beam (2.2) has a slot (2.2.1) at the top center that is hinged to the ear plate (2.1.1). The hinge joint between the upper beam (2.1) and the lower beam (2.2) is arched forward. Vertical elastic element (3), the two vertical elastic elements (3) are respectively disposed between the top of the upper beam (2.1) and the top of the inner cavity of the grooved part (1.1) and between the bottom of the lower beam (2.2) and the bottom of the inner cavity of the grooved part (1.1); Follower (4), the follower (4) includes a connecting plate (4.1) fixed to the outer wall of the crane trolley facing the limiting end, a horizontal strip (4.2) with its front end vertically fixed to the rear wall of the connecting plate (4.1) and directly opposite the bottom of the slot (2.2.1), a top plate (4.3) slidably fitted on the horizontal strip (4.2), and a horizontal elastic member disposed between the top plate (4.3) and the connecting plate (4.1).

2. The European-style crane trolley buffer protection device according to claim 1, characterized in that: The upper beam (2.1) has a slot 1 (2.1.2) at the top center and the lower beam (2.2) has a slot 2 (2.2.2) at the bottom center. The vertical elastic member (3) is respectively hinged at one end in the slot 1 (2.1.2) and the slot 2 (2.2.2).

3. The European-style crane trolley buffer protection device according to claim 2, characterized in that: The inner cavity of the grooved component (1.1) is fixed with a partition plate (1.3) extending horizontally near the top and bottom ends respectively. The partition plate (1.3) has a sleeve hole (1.3.1) near the front end in the middle. The vertical elastic component (3) includes a connecting block (3.1) that is hinged to and matched with the first slot (2.1.2) and the second slot (2.2.2), a vertical rod (3.2) with one end fixed to the connecting block (3.1) and the other end slidably sleeved in the sleeve hole (1.3.1), and a vertical spring (3.3) sleeved on the outside of the vertical rod (3.2).

4. The European-style crane trolley buffer protection device according to claim 1, characterized in that: The top and bottom ends of the rear wall of the grooved component (1.1) are respectively provided with fixing frames (1.2) that are fixedly connected to the limiting end of the rail beam.

5. The European-style crane trolley buffer protection device according to claim 1, characterized in that: The top plate (4.3) has a rectangular hole (4.3.1) in the middle that is slidably fitted with the horizontal strip (4.2). The top and bottom ends of the front wall of the top plate (4.3) are vertically fixed with guide rods (4.3.2). The top and bottom ends of the rear wall of the connecting plate (4.1) are vertically fixed with sleeves (4.4) that are slidably fitted with the guide rods (4.3.2). A horizontal spring (4.5) with its front end supported on the rear end face of the sleeve (4.4) is fitted on the rear part of the guide rod (4.3.2).

6. The European-style crane trolley buffer protection device according to claim 1, characterized in that: The rear end of the horizontal strip (4.2) is provided with a wedge-shaped structure.

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