Chain block capable of saving labor in operation

Abstract

The utility model provides a chain block which is labor-saving in operation, comprises a block body provided with a fixed guide wheel, and is characterized by further comprising a movable guide wheel group, a driving rope and an auxiliary grasping piece, one end of the driving rope penetrates through the fixed guide wheel and is connected with the block body through a connecting buckle, and the other end of the driving rope penetrates through the fixed guide wheel and is connected with the auxiliary grasping piece. The movable guide wheel set is arranged on the driving rope in a transmission mode, a lifting hook is arranged on the movable guide wheel set, the auxiliary grabbing piece is arranged on the driving rope in a sleeving mode, the auxiliary grabbing piece is close to the other end of the driving rope, the auxiliary grabbing piece is further connected with the hoist body through an elastic rope, and the auxiliary grabbing piece comprises a square frame, a guide cylinder and two regulation and control rods. The guide cylinder is fixed to the middle of the square frame, the two regulation and control rods are connected to the square frame in a sliding mode and arranged on the two sides of the guide cylinder, reset tension springs are further arranged between the regulation and control rods and the square frame, the regulation and control rods are connected with the clamping pieces through installation rods, and the clamping pieces are arranged in the guide cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of hoist technology and relates to a hand-operated hoist that is labor-saving to operate. Background Technology

[0002] A hand chain hoist is a common manual lifting tool widely used in various lifting, pulling, and traction operations. This device is designed based on the lever principle, using a chain or drive rope to lift or move heavy objects. Hand chain hoists are simple in structure, easy to operate, and have low maintenance costs, making them widely used in construction, machinery repair, cargo loading and unloading, and many other fields.

[0003] Currently, most chain hoists on the market use a drive rope to control the up and down movement of the lifting hook, which requires manual pulling of the drive rope during operation. However, because the drive rope is relatively thin, it is quite strenuous for the operator to grip. Therefore, it is necessary to design a chain hoist that is easier to operate. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a labor-saving hand chain hoist.

[0005] The objective of this utility model can be achieved through the following technical solution: A labor-saving hand chain hoist includes a hoist body with a fixed guide wheel installed on it. The hoist body is characterized by further including a movable guide wheel assembly, a drive rope, and an auxiliary gripping component. One end of the drive rope passes through the fixed guide wheel and is connected to the hoist body via a connecting buckle. The movable guide wheel assembly is mounted on the drive rope and has a lifting hook. The auxiliary gripping component is sleeved on the drive rope and is located near the other end of the drive rope. The auxiliary gripping component is also connected to the hoist body via an elastic rope. The auxiliary gripping component includes a square frame, a guide cylinder, and two adjusting rods. The guide cylinder is fixed in the middle of the square frame, and the two adjusting rods are slidably connected to the square frame, with the adjusting rods arranged on both sides of the guide cylinder. A return spring is also provided between the adjusting rod and the square frame. The adjusting rod is connected to a clamping plate via a mounting rod, and the clamping plate is arranged inside the guide cylinder.

[0006] The square frame has connecting loops for connecting to elastic ropes.

[0007] The gourd body also has a fixed hook.

[0008] The control lever also has an anti-slip sleeve.

[0009] Compared with existing technologies, this labor-saving hand chain hoist has the following advantages:

[0010] In this invention, a movable guide wheel assembly is used on the hand chain hoist. At the same time, in conjunction with the auxiliary gripping component, the gripping force can be greatly reduced when the drive rope is pulled, thus making it more labor-saving to use the hand chain hoist. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0012] Figure 2 This is a magnified view of a portion of point A;

[0013] Figure 3 This is a three-dimensional structural diagram of the auxiliary gripping component in this utility model;

[0014] Figure 4 This is a three-dimensional structural diagram of the removed portion of this utility model;

[0015] In the diagram, 1. Hoist body; 2. Fixed hook; 3. Fixed guide wheel; 4. Drive rope; 5. Movable guide wheel assembly; 6. Lifting hook; 7. Auxiliary gripping component; 7a. Square frame; 7b. Guide cylinder; 7c. Reset spring; 7d. Adjusting rod; 7e. Mounting rod; 7f. Connecting ring; 7h. Clamping plate; 8. Elastic rope; 9. Connecting buckle. Detailed Implementation

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1-Figure 4As shown, this labor-saving hand chain hoist includes a hoist body 1, on which a fixed guide wheel 3 is mounted. It also includes a movable guide wheel assembly 5, a drive rope 4, and an auxiliary gripping component 7. One end of the drive rope 4 passes through the fixed guide wheel 3 and is connected to the hoist body 1 via a connecting buckle 9. The movable guide wheel assembly 5 is mounted on the drive rope 4 and has a lifting hook 6. The auxiliary gripping component 7 is sleeved on the drive rope 4 and is located near the other end of the drive rope 4. The auxiliary gripping component 7 is also connected to the hoist body 1 via an elastic rope 8. The auxiliary gripping component 7 includes a square frame 7a, a guide cylinder 7b, and two adjusting rods 7d. The guide cylinder 7b is fixed in the middle of the square frame 7a, and the two adjusting rods 7d slide. The control rod 7d is connected to the square frame 7a and arranged on both sides of the guide cylinder 7b. The control rod 7d and the square frame 7a also have a return spring 7c. The control rod 7d is connected to the clamping piece 7h through the mounting rod 7e and the clamping piece 7h is arranged inside the guide cylinder 7b. With this structure, when the other end of the drive rope 4 is pulled down, the operator's hand is on the auxiliary gripping piece 7. By gripping the control rod 7d, the two control rods 7d are brought closer to each other, and the drive rope 4 is clamped by the clamping piece 7h. Since the hand is in contact with the control rod 7d, the gripping area of ​​the hand is increased. That is, the hand does not need to directly grip the thin drive rope 4, so it is more convenient and less strenuous to grip.

[0018] The square frame 7a has a connecting ring 7f for connecting to the elastic rope 8. In this embodiment, the elastic rope 8 is used to connect the auxiliary gripper 7 so as not to affect the downward pulling of the auxiliary gripper 7.

[0019] The hoist body 1 also has a fixing hook 2, which makes it easy to install the entire hand chain hoist in the desired position.

[0020] The control lever 7d also has an anti-slip sleeve. With this structure, the anti-slip sleeve is connected to the outside of the control lever 7d in the existing way, which increases the friction and improves the comfort of gripping.

[0021] In this invention, a movable guide wheel assembly 5 is added to the hand chain hoist. At the same time, in conjunction with the auxiliary gripping component 7, the gripping force can be greatly reduced when the drive rope 4 is pulled, thus making it more labor-saving when using the hand chain hoist.

[0022] 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.

[0023] 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 replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A labor-saving hand-operated chain hoist, comprising a hoist body (1), wherein a fixed guide wheel (3) is mounted on the hoist body (1), characterized in that, It also includes a movable guide wheel assembly (5), a drive rope (4), and an auxiliary gripper (7). One end of the drive rope (4) passes through the fixed guide wheel (3) and is connected to the hoist body (1) via a connecting buckle (9). The movable guide wheel assembly (5) is mounted on the drive rope (4) and has a lifting hook (6). The auxiliary gripper (7) is sleeved on the drive rope (4) and is close to the other end of the drive rope (4). The auxiliary gripper (7) is also connected to the hoist body (1) via an elastic rope (8). The component (7) includes a square frame (7a), a guide cylinder (7b), and two control rods (7d). The guide cylinder (7b) is fixed in the middle of the square frame (7a). The two control rods (7d) are slidably connected to the square frame (7a) and arranged on both sides of the guide cylinder (7b). A reset spring (7c) is also provided between the control rod (7d) and the square frame (7a). The control rod (7d) is connected to a clamping piece (7h) through a mounting rod (7e) and the clamping piece (7h) is arranged inside the guide cylinder (7b).

2. The hand chain hoist for easy operation according to claim 1, characterized in that, The square frame (7a) has a connecting ring (7f) for connecting to the elastic rope (8).

3. The hand-operated chain hoist according to claim 1, characterized in that, The gourd body (1) also has a fixed hook (2).

4. The hand chain hoist for easy operation according to claim 1, characterized in that, The control lever (7d) also has an anti-slip sleeve.

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