Mechanical hoisting and transferring device capable of automatically extracting and releasing

Abstract

The utility model discloses a mechanical hoisting transfer device capable of automatically extracting and releasing, which comprises a first connecting piece and a second connecting piece, the first connecting piece is provided with a vertical hoisting through hole, the hole walls of the two opposite sides of the hoisting through hole are respectively provided with a transverse guide hole, a sliding block and a pressure spring are arranged in the guide holes, and the sliding block is connected with the second connecting piece. The second connecting piece comprises a large cylinder, a small cylinder is arranged at the upper end of the large cylinder, a fixed cone frustum is arranged at the upper end of the small cylinder, and the small cylinder is sleeved with a movable cone frustum through a center through hole of the movable cone frustum and can vertically move. The upper end of the movable cone frustum is a large-diameter end and is the same as the large-diameter end of the fixed cone frustum in diameter. According to the utility model, an automatic control function of automatic extraction and release can be realized completely through a mechanical structure, electrical energy is not needed, the device can work normally in an application scene of power failure or no power supply, and the device also has the advantages of simple structure and lower cost.

Description

Technical Field

[0001] The utility model relates to a hoisting and transferring device, in particular to a mechanical hoisting and transferring device which can automatically extract and release. Background Art

[0002] Lifting and transfer are used in various industries. In order to realize the functions of automatic extraction and release, the general traditional lifting and transfer systems use manipulators or electromagnets as the components that are in direct contact with the objects. This method has sufficient lifting capacity and is easy to control, but it relies on electricity to ensure the automatic control function. In the application scenarios of power outages or no power supply, traditional lifting and transfer systems are difficult to work normally. In addition, traditional lifting and transfer systems also have the defects of complex structure and high cost. Utility Model Content

[0003] The purpose of the utility model is to provide a mechanical lifting and transferring device which can automatically extract and release and realize automatic control by using a mechanical structure in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A mechanical lifting and transfer device capable of automatic extraction and release, comprising a first connecting piece for connecting with a lifting rope and a second connecting piece for connecting with a lifted object, wherein the first connecting piece is provided with a vertical lifting through hole, and the hole walls on opposite sides of the lifting through hole are respectively provided with transverse guide holes, wherein a slider and a compression spring are installed in the guide hole, wherein the slider can move axially in the guide hole and cannot rotate circumferentially in the guide hole, wherein the compression spring is located between the slider and the hole wall at one end of the guide hole away from the lifting through hole, wherein the surface at one end of the slider close to the lifting through hole is an inclined surface and the lower part of the surface is closer to the corresponding part than the upper part The compression spring, the second connecting member includes a large cylinder with an outer diameter smaller than the aperture of the lifting through hole and an axial direction vertical, a small cylinder with an axial direction vertical is provided at the upper end of the large cylinder, the outer diameter of the small cylinder is smaller than the outer diameter of the large cylinder, a fixed frustum with an axial direction vertical is provided at the upper end of the small cylinder, the lower end of the fixed frustum is a large diameter end and the diameter of the large diameter end is larger than the outer diameter of the small cylinder and smaller than the aperture of the lifting through hole, a movable frustum with an axial direction vertical is mounted outside the small cylinder through its own center through hole and can move vertically, the upper end of the movable frustum is a large diameter end and has the same diameter as the large diameter end of the fixed frustum.

[0006] Preferably, in order to prevent the slider from circumferential rotation, the radial cross-section of the guide hole and the corresponding cross-section of the slider are both square.

[0007] Preferably, in order to limit the sliding range of the slider to prevent it from disengaging from the guide hole, a limiting rod is connected to one end of the slider close to the compression spring, and the compression spring is sleeved on the outside of the corresponding limiting rod. The end of the limiting rod away from the slider passes through the corresponding through hole on the hole wall of the corresponding guide hole away from the lifting through hole and is connected to a limiting boss. The limiting boss is placed outside the first connecting member and its outer diameter is larger than the outer diameter of the limiting rod.

[0008] Preferably, in order to facilitate the slider to be blocked by the large cylinder and unable to enter the lifting through hole during the downward movement of the first connecting piece and to facilitate determining the downward limit position of the movable frustum, the large cylinder and the small cylinder are transitionally connected by a conical section, the outer diameter of the lower end of the conical section is larger than the outer diameter of the upper end and the outer diameter of the lower end is the same as the outer diameter of the large cylinder, and the outer diameter of the upper end of the conical section is larger than the outer diameter of the small cylinder.

[0009] Preferably, in order to facilitate connection with the hoisted object, a connecting flange with a larger outer diameter is provided at the lower end of the large cylinder.

[0010] The beneficial effects of the utility model are:

[0011] The utility model provides a lifting through hole, a slider and a compression spring on the first connecting member, so that the slider can be completely placed in the guide hole when squeezed and partially enter the lifting through hole when not squeezed. A large cylinder, a small cylinder, a fixed truncated cone and a movable truncated cone are provided on the second connecting member. When the first connecting member moves downward, the slider is squeezed by the conical surface of the fixed truncated cone and completely enters the guide hole. After the slider passes over the large diameter end of the fixed truncated cone, it will be pushed into the lifting through hole by the compression spring. At this time, the first connecting member can be moved upward, and the slider is blocked by the large diameter end of the fixed truncated cone, so that the second connecting member is lifted to realize the automatic extraction function. After the lifting transfer is in place, the first connecting member moves downward again, and when passing the movable truncated cone, the slider is pushed by the large diameter end of the movable truncated cone under the action of the inclined surface of the slider. The slider is squeezed at the large diameter end and completely enters the guide hole. After the slider passes over the large diameter end of the movable frustum, it will be pushed by the compression spring into the lifting through hole and contact with the outer wall of the movable frustum. At this time, the first connecting piece is moved up again, and the elastic force of the compression spring can make the slider drive the movable frustum to move upward until the upper end of the movable frustum contacts with the lower end of the fixed frustum. Under the squeezing action of the conical outer wall of the movable frustum, the slider completely enters the guide hole, and the first connecting piece can continue to move up and be completely separated from the second connecting piece to realize the release function, and finally realize the automatic control function of automatic extraction and release completely through the mechanical structure. It does not require electric energy and can work normally in application scenarios where there is a power outage or no power supply. It also has the advantages of simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the three-dimensional structure of the mechanical lifting and transfer device capable of automatic extraction and release according to the utility model, wherein the first connecting member is a three-dimensional half-section structure, and the other components are three-dimensional structures;

[0013] Figure 2 This is one of the main structural diagrams of the mechanical lifting and transfer device capable of automatic extraction and release described in the utility model when it is used, wherein the first connecting member is the main cross-sectional structure, and the other components are the main structures;

[0014] Figure 3 This is the second main structural schematic diagram of the mechanical lifting and transferring device capable of automatic extraction and release described in the utility model when it is used, wherein the first connecting member is the main cross-sectional structure, and the other components are the main structures. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] like Figure 1 As shown, the mechanical lifting and transferring device capable of automatic extraction and release of the utility model comprises a first connecting member 2 for connecting with a lifting rope (not shown in the figure) and a second connecting member for connecting with a suspended object (not shown in the figure), the first connecting member 2 is provided with a vertical lifting through hole 7, and the hole walls on opposite sides of the lifting through hole 7 are respectively provided with transverse guide holes 4, a slider 6 and a compression spring 5 are installed in the guide hole 4, the slider 6 can move axially in the guide hole 4 and cannot rotate circumferentially in the guide hole 4, the compression spring 5 is located between the slider 6 and the hole wall at one end of the guide hole 4 away from the lifting through hole 7, the end surface of the slider 6 close to the lifting through hole 7 is an inclined surface and the lower part of the surface is lower than the upper The part is closer to the corresponding compression spring 5, and the second connecting member includes a large cylinder 12 with an outer diameter smaller than the aperture of the lifting through hole 7 and an axial direction vertical. The upper end of the large cylinder 12 is provided with a small cylinder 10 with an axial direction vertical. The outer diameter of the small cylinder 10 is smaller than the outer diameter of the large cylinder 12. The upper end of the small cylinder 10 is provided with a fixed frustum 8 with an axial direction vertical. The lower end of the fixed frustum 8 is a large diameter end and the diameter of the large diameter end is larger than the outer diameter of the small cylinder 10 and smaller than the aperture of the lifting through hole 7. A movable frustum 9 with an axial direction vertical is mounted on the outside of the small cylinder 10 through its own center through hole and can move vertically. The upper end of the movable frustum 9 is a large diameter end and has the same diameter as the large diameter end of the fixed frustum 8.

[0017] like Figure 1 As shown, the utility model also discloses the following more optimized specific structures:

[0018] In order to prevent the slider 6 from circumferentially rotating, the radial cross section of the guide hole 4 and the corresponding cross section of the slider 6 are both square.

[0019] In order to limit the sliding range of the slider 6 to prevent it from disengaging from the guide hole 4, the end of the slider 6 close to the compression spring 5 is connected to the limiting rod 3, and the compression spring 5 is sleeved on the outside of the corresponding limiting rod 3. The end of the limiting rod 3 away from the slider 6 passes through the corresponding through hole on the hole wall of the corresponding guide hole 4 away from the lifting through hole 7 and is connected to the limiting boss 1. The limiting boss 1 is placed outside the first connecting member 2 and its outer diameter is larger than the outer diameter of the limiting rod 3.

[0020] In order to facilitate the slider 6 to be blocked by the large cylinder 12 and unable to enter the lifting hole 7 during the downward movement of the first connecting member 2, and to facilitate determining the downward limit position of the movable frustum 9, the large cylinder 12 and the small cylinder 10 are transitionally connected by a conical section 11. The outer diameter of the lower end of the conical section 11 is larger than the outer diameter of the upper end and the lower end outer diameter is the same as the outer diameter of the large cylinder 12, and the outer diameter of the upper end of the conical section 11 is larger than the outer diameter of the small cylinder 10.

[0021] In order to facilitate the connection of the hoisted object, a connecting flange 13 with a larger outer diameter is provided at the lower end of the large cylinder 12 .

[0022] like Figure 1-Figure 3 As shown, when used, first connect the lifting rope (or other lifting components) of the lifting system (such as a lifting arm, etc.) to the upper part of the first connecting member 2, and connect the connecting flange 13 to the object to be lifted; control the first connecting member 2 to move to the top of the second connecting member, and then control the first connecting member 2 to move downward. When the slider 6 is contacted by the fixed truncated cone 8, the conical surface of the slider 6 is squeezed and completely enters the guide hole 4. After the slider 6 passes the large diameter end of the fixed truncated cone 8, it will be pushed into the lifting through hole 7 by the compression spring 5, and then the first connecting member 2 is controlled to move upward. The slider 6 is blocked by the large diameter end of the fixed truncated cone 8 and is in contact with the horizontal plane. The slider 6 lifts the fixed truncated cone 8 and moves it upward, thereby lifting the second connecting member and the object to be lifted, and realizing the automatic extraction function; when the lifting transfer is in place, the first connecting member 2 moves downward again, and when passing through the moving truncated cone 9, under the action of the inclined surface of the slider 6, The slider 6 is squeezed by the large diameter end of the movable frustum 9 and completely enters the guide hole 4. After the slider 6 passes the large diameter end of the movable frustum 9, it will be pushed by the compression spring 5 into the lifting through hole 7 and contact with the outer wall of the movable frustum 9, and then the first connecting member 2 is controlled to move up again. The elastic force of the compression spring 5 can make the slider 4 drive the movable frustum 9 to move upward until the upper end of the movable frustum 9 contacts the lower end of the fixed frustum 8 and can no longer move upward. Under the squeezing action of the conical outer wall of the movable frustum 9, the slider 6 completely enters the guide hole 4, and the first connecting member 2 can continue to move upward and be completely separated from the second connecting member to realize the release function, and finally realize the automatic control function of automatic extraction and release completely through the mechanical structure. It does not require electric energy and can work normally in application scenarios where there is a power outage or no power supply. It also has the advantages of simple structure and low cost.

[0023] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A mechanical lifting and transfer device capable of automatic extraction and release, comprising a first connecting member for connecting to a lifting rope and a second connecting member for connecting to a suspended object, characterized in that: The first connecting member is provided with a vertical lifting through hole, and the hole walls on opposite sides of the lifting through hole are respectively provided with transverse guide holes, a slider and a compression spring are installed in the guide hole, the slider can move in the axial direction of the guide hole and cannot rotate in the circumferential direction of the guide hole, the compression spring is located between the slider and the hole wall at one end of the guide hole away from the lifting through hole, the end surface of the slider close to the lifting through hole is an inclined surface and the lower part of the surface is closer to the corresponding compression spring than the upper part, and the second connecting member includes an outer diameter smaller than the hole diameter of the lifting through hole A large cylinder with a vertical axis is provided at the upper end of the large cylinder, and the outer diameter of the small cylinder is smaller than the outer diameter of the large cylinder. A fixed frustum of cone is provided at the upper end of the small cylinder, and the lower end of the fixed frustum of cone is a large diameter end, and the diameter of the large diameter end is larger than the outer diameter of the small cylinder and smaller than the diameter of the lifting through hole. A movable frustum of cone with a vertical axis is mounted outside the small cylinder through its own center through hole and can move vertically. The upper end of the movable frustum of cone is a large diameter end and has the same diameter as the large diameter end of the fixed frustum of cone.

2. The mechanical lifting and transfer device capable of automatic extraction and release according to claim 1, characterized in that: The radial cross section of the guide hole and the corresponding cross section of the slider are both square.

3. The mechanical lifting and transfer device capable of automatic extraction and release according to claim 1, characterized in that: One end of the slider close to the compression spring is connected to a limiting rod, and the compression spring is sleeved outside the corresponding limiting rod. The end of the limiting rod away from the slider passes through the corresponding through hole on the hole wall of the corresponding guide hole away from the lifting through hole and is connected to a limiting boss. The limiting boss is placed outside the first connecting member and its outer diameter is larger than the outer diameter of the limiting rod.

4. The mechanical lifting and transferring device capable of automatic extraction and release according to any one of claims 1 to 3, characterized in that: The large cylinder and the small cylinder are transitionally connected via a conical section, the outer diameter of the lower end of the conical section is greater than the outer diameter of the upper end and is the same as the outer diameter of the large cylinder, and the outer diameter of the upper end of the conical section is greater than the outer diameter of the small cylinder.

5. The mechanical lifting and transferring device capable of automatic extraction and release according to any one of claims 1 to 3, characterized in that: A connecting flange with a larger outer diameter is provided at the lower end of the large cylinder.

Images