Brake bar clamping device for crane carriage

Abstract

The utility model provides a brake bar clamping device for a crane carriage, and belongs to the technical field of crane carriage components. A brake bar clamping device for a crane carriage comprises a carriage body and a safety brake bar, two cross beams are symmetrically installed on the carriage body, a screw is arranged on one side of each cross beam, and the screws penetrate through the safety brake bar and are connected with the safety brake bar; a clamping frame is fixed to the upper portion of the cross beam, a clamping frame is installed on one side of the clamping frame, a clamping groove is formed in the clamping frame, and one side of the safety brake bar body is clamped in the clamping groove of the clamping frame in a limited mode; a chain is mounted on one side of the cross beam, a clamping hook is arranged on the chain, a clamping lug is arranged on the safety gate, and the clamping hook is connected with the clamping lug. The protection device has the advantages of stability, firmness and good protection effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of crane trolley components, specifically a brake lever clamping device for crane trolleys. Background Technology

[0002] Tower cranes are crucial pieces of machinery in industrial infrastructure, bridges, and other infrastructure projects. They are equipped with trolleys that can move rapidly along steel cables for transporting and moving equipment. However, existing trolleys lack safety brakes. When the trolley moves to the starting or ending point of the crane boom, operators must carefully wait for it to settle smoothly before proceeding. This lack of timely restraint and stabilization, coupled with the absence of safety brakes, poses a significant safety hazard, increasing the risk of accidents and endangering the safety of operators. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a brake lever clamping device for crane trolleys, which has the advantages of being stable, reliable, and providing good protection.

[0004] The purpose of this utility model can be achieved through the following technical solution: a brake arm clamping device for a crane trolley, including a trolley body and a safety brake arm, two crossbeams are symmetrically installed on the trolley body, and a screw is provided on one side of the crossbeams. The screw passes through the safety brake arm and is connected to the safety brake arm.

[0005] A snap-fit ​​bracket is fixed above the crossbeam, and a snap-fit ​​frame is installed on one side of the snap-fit ​​bracket. The snap-fit ​​frame has a snap-fit ​​groove, and one side of the safety gate arm is snapped into the snap-fit ​​groove of the snap-fit ​​frame.

[0006] A chain is installed on one side of the crossbeam, and the chain has a hook. The safety gate has a locking lug, and the hook is connected to the locking lug.

[0007] Preferably, the bottom of the safety gate arm has a counterweight block to facilitate the vertical installation of the safety gate arm.

[0008] Preferably, the slot opening of the snap-fit ​​groove has a guide portion for guiding the safety gate arm into the snap-fit ​​groove.

[0009] Preferably, the snap-fit ​​groove is oriented towards the safety gate arm, and the groove width at the opening of the snap-fit ​​groove gradually widens from the inside to the outside.

[0010] Preferably, the end of the screw furthest from the vehicle body is threaded with a first bolt for securing the safety valve stem.

[0011] Preferably, the safety gate arm and the snap-fit ​​frame are made of stainless steel.

[0012] Compared with the prior art, the advantages of this utility model are: by adding a safety gate arm and a locking groove on the crossbeam for locking the safety gate arm, the safety gate arm flips towards the locking frame until it locks into the locking groove of the locking frame for locking and fixing, which helps to stabilize the vehicle body and fix the vehicle body, prevent the vehicle body from shaking, and greatly protect the safety of the operator on the vehicle body. Attached Figure Description

[0013] Figure 1 This is a front view of the present invention.

[0014] Figure 2 This is a view showing the connection between the snap-fit ​​frame and the safety gate arm of this utility model.

[0015] In the diagram, 2 is the vehicle body; 21 is the crossbeam; 22 is the screw; 23 is the snap-fit ​​bracket; 24 is the snap-fit ​​frame; 241 is the snap-fit ​​groove; 242 is the guide part; 3 is the safety brake arm; 31 is the snap-fit ​​ear; 4 is the counterweight; 5 is the first bolt; 61 is the chain; and 62 is the snap hook. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1 to 2 As shown, a brake arm clamping device for a crane trolley includes a vehicle body 2 and a safety brake arm 3. Two crossbeams 21 are symmetrically installed on the vehicle body 2. A screw 22 is provided on one side of the crossbeams 21. The screw 22 passes through the safety brake arm 3 and is connected to the safety brake arm 3.

[0018] A snap-fit ​​bracket 23 is fixed above the crossbeam 21. A snap-fit ​​frame 24 is installed on one side of the snap-fit ​​bracket 23. The snap-fit ​​frame 24 has a snap-fit ​​groove 241. One side of the safety gate arm 3 is snapped into the snap-fit ​​groove 241 of the snap-fit ​​frame 24.

[0019] A chain 61 is installed on one side of the crossbeam 21. The chain 61 has a hook 62. The safety gate has a locking lug 31. The hook 62 is connected to the locking lug 31.

[0020] With the above structure, through the added safety gate 3 and the locking groove 241 on the crossbeam 21 for locking the safety gate 3, when the vehicle body 2 moves to one side of the crane boom and needs to be stabilized and fixed, the operator connects the hook 62 to the locking ear 31 in advance, and at the same time, the safety gate 3 flips towards the locking frame 24 until it locks into the locking groove 241 of the locking frame 24 for locking and fixing. This helps to stabilize the vehicle body 2 and fix the vehicle body 2, prevent the vehicle body 2 from shaking, and greatly protect the safety of the operator on the vehicle body 2.

[0021] Specifically, such as Figures 1 to 2 As shown, the bottom of the safety gate arm 3 has a counterweight block 4 for facilitating the vertical installation of the safety gate arm 3.

[0022] By adopting the above structure and setting the counterweight 4, it is beneficial to shift the center of gravity of the safety gate arm 3 downward, so that the bottom of the safety gate arm 3 always faces downward. It is also beneficial to make the safety gate arm 3 always vertically set under gravity, which facilitates further locking and fixing with the locking groove 241 of the locking frame 24. It is not easy to be difficult to lock and fix due to repeated shaking.

[0023] like Figures 1 to 2 As shown, the slot 241 has a guide portion 242 at its opening for guiding the safety gate arm 3 into the slot 241. The slot 241 is oriented towards the safety gate arm 3, and the width of the slot opening gradually widens from the inside to the outside.

[0024] By adopting the above structure, the width of the slot at the opening of the snap-fit ​​groove 241 gradually widens from the inside to the outside, and a guide part 242 is provided to guide the entry into the snap-fit ​​groove 241. This facilitates the entry or sliding of the safety gate arm 3 into the snap-fit ​​groove 241, making entry more effortless and effective, and providing a good guiding effect.

[0025] like Figures 1 to 2 As shown, the end of the screw 22 furthest from the vehicle body 2 is threadedly connected to a first bolt 5 for fixing the safety valve stem. By setting the first bolt 5, it is beneficial to limit the safety gate in the left and right horizontal directions, preventing the safety gate from shifting in the left and right horizontal directions when rotating and moving, and making it easier to perform subsequent snap-fit ​​fixing.

[0026] like Figures 1 to 2 As shown, the safety gate arm 3 and the snap-fit ​​frame 24 are made of stainless steel. The stainless steel construction provides strength and rigidity, making it less prone to deformation and damage, thus extending the service life of the device.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A brake lever clamping device for a hoist trolley, comprising a trolley body (2) and a safety brake lever (3), characterized in that, Two cross beams (21) are symmetrically installed on the vehicle body (2), one side of the cross beam (21) is provided with a screw rod (22), the screw rod (22) penetrates through the safety gate rod (3) and is connected with the safety gate rod (3); A clamping frame (23) is fixed above the cross beam (21), one side of the clamping frame (23) is provided with a clamping frame (24), the clamping frame (24) is provided with a clamping groove (241), one side of the rod body of the safety gate rod (3) is clamped in the clamping groove (241) of the clamping frame (24); One side of the cross beam (21) is provided with a chain (61), the chain (61) is provided with a clamping hook (62), the safety gate (3) is provided with a clamping lug (31), the clamping hook (62) is connected with the clamping lug (31).

2. The latch device for the brake lever of the trolley according to claim 1, wherein The bottom of the safety gate rod (3) is provided with a counterweight (4) for facilitating the vertical arrangement of the safety gate rod (3).

3. The latch device for the brake lever of the trolley according to claim 1, wherein The notch of the clamping groove (241) is provided with a guide portion (242) for guiding the safety gate rod (3) into the clamping groove (241).

4. The latch device for the brake lever of the trolley according to claim 1, wherein The direction of the clamping groove (241) is close to the safety gate rod (3), and the notch width of the notch of the clamping groove (241) gradually widens from inside to outside.

5. The latch device for the brake lever of the trolley according to claim 1, wherein The end of the screw rod (22) away from the vehicle body (2) is threadedly connected with a first bolt (5) for fixing the safety valve rod.

6. The latch device for the brake lever of the trolley according to claim 1, wherein The safety gate rod (3) and the clamping frame (24) are made of stainless steel.

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