Pluggable simple lifting appliance
By designing a plug-and-pull and unplugged simple spreader that automatically locks and releases, the problem of inconvenience of manual assisted connection in the prior art is solved, and efficient and simple connection and removal of spreader and heavy objects is achieved, which is suitable for a variety of scenarios.
Patent Information
- Application Number
- CN202420347067.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In the prior art, the connection process between the lifting device and the heavy object requires manual assistance, which is inconvenient to operate, low efficiency, complex structure and low reliability.
A plug-in and unplugged simple spreader is designed, using a combination structure of lock core and spring to automatically lock and unhook the attachment. The cage automatically returns to its original position through the spring to improve the attachment efficiency.
It realizes efficient connection and release without manual assistance, simplifies the operation process, reduces structural complexity and improves reliability, and is suitable for scenarios where space is small and inconvenient for manual operation.
Smart Images
Figure CN222630805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connection between a lifting device and a heavy object, in particular to a portable lifting sling. Background Art
[0002] The plug-in simple lifting device is a connection device between the lifting device and the heavy object. After the connection is completed, the position of the heavy object is moved by operating the lifting device. The lifting device and the lifting device have vertical rotation and horizontal rotation.
[0003] The sling mainly includes a shell, a cage, a cage lifting mechanism, a locking device, a spring and other accessories. The disadvantages of the prior art are that the connection process with the heavy object requires manual assistance to complete the connection, which is inconvenient to operate and requires multiple adjustments to the connection point position, which is inefficient; there is a power unit inside the bracket, and a hydraulic or electric telescopic locking rod is used for automatic connection during connection, which adds a set of power units, making its structure more complicated and reducing reliability. Utility Model Content
[0004] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a plug-in simple sling. When hanging, the lock core can overcome the force of the spring and automatically lock. When releasing the hanging, the retaining frame automatically returns to its original position under the action of the spring, thereby improving the hanging efficiency.
[0005] The utility model is realized through the following technical scheme: a plug-in simple sling, comprising a heavy object lifting shaft, a sling shell, steel balls, a retaining frame, a spring lower support, a spring I and a sling, the sling being arranged on the sling shell, the sling being an upper support seat of the spring I, the spring I being fixed at the bottom of the sling, the other end of the spring I being connected to the spring lower support, the retaining frame being matched with the sling shell through the spring lower support, the retaining frame being provided with a hole matched with the steel balls, the steel balls being assembled and connected with the retaining frame, the sling shell being further provided with a handle locking device, the handle locking device being connected with a retaining frame lifting handle, the shift fork of the retaining frame lifting handle being matched with the retaining frame pin shaft, the retaining frame lifting handle being able to drive the retaining frame to move up and down, the heavy object lifting shaft being connected with the retaining frame in the sling shell through the steel balls.
[0006] The sling shell and retainer include a conical portion and a cylindrical portion. The retainer is arranged inside the sling shell. The conical portion of the retainer can cooperate with the conical portion inside the sling shell. The heavy object lifting shaft includes a shaft head, a shaft neck and a shaft body. The diameter of the shaft neck is smaller than the diameters of the shaft head and the shaft body. When the retainer cooperates with the conical portion of the sling shell under the action of spring I, the steel balls are in close contact with the holes on the retainer and the sling shell at the same time. The spacing of the steel balls can pass through the shaft neck, but the shaft head and the shaft body cannot pass through.
[0007] The retaining frame is provided with three holes matched with the steel balls, and the steel balls are provided with three holes.
[0008] The handle locking device is also provided with a lock release switch, which includes a lock core, a spring II and a handle. The lock core is connected to the handle and spring II. The lock core, spring II and the handle are assembled on the lock release switch body. The lock core is a semi-cylinder. The lock core is kept in an extended state by spring II, and the upper half of the lock core head is a spherical surface.
[0009] The retainer lifting handle is hinged on the handle locking device. When the retainer lifting handle moves clockwise to the lock core, it can push the lock core to overcome the force of spring II and retract into the interior. When the retainer lifting handle moves counterclockwise, the handle is locked by the extended lower plane of the lock core.
[0010] The hanging shaft and the handle locking device are welded on the hanging tool shell.
[0011] The connection mode between the suspension shaft and the suspension housing is threaded or bolted.
[0012] The beneficial effects of the utility model are: simple principle and structure, low manufacturing cost, and simple operation. A new method is provided for the hoisting connection mode, which expands the application scenarios of hoisting, and is particularly practical for working conditions where the space is small and it is not convenient for manual auxiliary operation. The utility model can be used for connection when the environment where the heavy object is located is not convenient for manual connection or the heavy object is cylindrical and it is not convenient to use a hoisting belt. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below based on the drawings and embodiments.
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 It is a perspective view of the utility model;
[0016] Figure 3 It is a top view of the utility model;
[0017] Figure 4 It is an exploded view of the utility model;
[0018] Figure 5 This is a schematic diagram of a heavy object hoisting shaft locking device composed of a steel ball and a retaining frame of the utility model;
[0019] Figure 6 yes Figure 5 A top view of
[0020] Figure 7 yes Figure 5 Side view of
[0021] Figure 8It is a schematic diagram of the combination of the handle locking device and the lock release switch of the utility model;
[0022] Fig. 9 yes Figure 8 Side view of
[0023] Fig.10 yes Figure 8 A top view of
[0024] Fig.11 It is a structural schematic diagram of the lock release switch of the utility model;
[0025] Fig.12 This is the application scenario of the utility model.
[0026] In the figure: 1. heavy object lifting shaft; 2. lifting device housing; 3. steel ball; 4. retaining frame; 5. spring lower support; 6. spring I; 7. lifting shaft; 8. retaining frame lifting handle; 9. handle locking device; 10. lock release switch; 1-1. shaft head; 1-2. shaft neck; 1-3. shaft body; 10-1. lock core; 10-2. spring II; 10-3. handle. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] like Figures 1 to 11 The shown plug-in simple sling comprises a heavy object lifting shaft 1, a sling housing 2, a steel ball 3, a retaining frame 4, a spring lower support 5, a spring I6 and a sling shaft 7. The sling shaft 7 is arranged on the sling housing 2. The sling shaft 7 is an upper support seat of the spring I6. The spring I6 is fixed at the bottom of the sling shaft 7. The other end of the spring I6 is connected to the spring lower support 5. The retaining frame 4 cooperates with the sling housing 2 through the spring lower support 5. The retaining frame 4 is provided with a hole that cooperates with the steel ball 3. The steel ball 3 is assembled and connected to the retaining frame 4. The sling housing 2 is also provided with a handle locking device 9. The handle locking device 9 is connected with a retaining frame lifting handle 8. The fork of the retaining frame lifting handle 8 cooperates with the pin shaft of the retaining frame 4. The retaining frame lifting handle 8 can drive the retaining frame 4 to move up and down. The heavy object lifting shaft 1 is connected to the retaining frame 4 in the sling housing 2 through the steel ball 3.
[0030] The sling housing 2 and retainer 4 include a conical portion and a cylindrical portion. The retainer 4 is arranged inside the sling housing 2. The conical portion of the retainer 4 can cooperate with the conical portion inside the sling housing 2. The heavy object lifting shaft 1 includes a shaft head 1-1, a shaft neck 1-2 and a shaft body 1-3. The diameter of the shaft neck 1-2 is smaller than the diameters of the shaft head 1-1 and the shaft body 1-3. When the retainer 4 cooperates with the conical portion of the sling housing 2 under the action of the spring Ⅰ6, the steel ball 3 is in close contact with the hole on the retainer 4 and the sling housing 2 at the same time. The spacing of the steel ball 3 is such that the shaft neck 1-2 can pass through, but the shaft head 1-1 and the shaft body 1-3 cannot pass through.
[0031] The retaining frame 4 is provided with three holes matched with the steel balls 3, and the steel balls 3 are provided with three holes.
[0032] The handle locking device 9 is also provided with a lock release switch 10, which includes a lock core 10-1, a spring II 10-2 and a handle 10-3. The lock core 10-1 is connected to the handle 10-3 and the spring II 10-2. The lock core 10-1, the spring II 10-2 and the handle 10-3 are assembled on the lock release switch 10 body. The lock core 10-1 is a semi-cylinder. The lock core 10-1 is kept in an extended state by the spring II 10-2, and the upper half of the head of the lock core 10-1 is a spherical surface.
[0033] The retainer lifting handle 8 is hinged on the handle locking device 9. When the handle of the retainer lifting handle 8 moves clockwise to the lock core 10-1, it can push the lock core 10-1 to retract into the interior, overcoming the force of the spring II 10-2. When the retainer lifting handle 8 moves counterclockwise, the handle is locked by the extended lower plane of the lock core.
[0034] The suspension shaft 7 and the handle locking device 9 are welded to the sling housing 2 .
[0035] The connection between the suspension shaft 7 and the sling housing 2 is by thread or bolt connection.
[0036] When the sling is connected to the object to be lifted, the object lifting shaft 1 is inserted into the sling hole. At this time, the retainer 4 cooperates with the conical part of the sling shell 2 under the action of the spring Ⅰ6, and the farthest distance between the three steel balls 3 in the hole on the retainer 4 is the state where the three steel balls are in contact with the inclined surface of the conical part of the sling shell 2. At this time, the state of the 3 steel balls is shown in FIG. Figure 5 , Figure 6 and Figure 7 At this time, this spacing is only enough for the size of the shaft neck 1-2 of the heavy object lifting shaft 1 to pass through, and its shaft head 1-1 cannot pass through, so when the heavy object lifting shaft 1 continues to be inserted into the sling hole, the shaft head 1-1 of the heavy object lifting shaft 1 will push the steel balls 3 to move away from each other, and the retaining frame 4 will move away from the conical part of the sling shell 2. At this time, the three steel balls 3 will always keep in contact with the sling shell 2 under the action of the heavy object lifting shaft 1, until the distance between the three steel balls 3 is enough for the shaft head 1-1 of the heavy object lifting shaft 1 to pass through (here, the position of the trigger handle locking device 9 is not reached), and the retaining frame 4 is no longer away from the conical part of the sling shell 2; when the shaft neck 1-2 of the heavy object lifting shaft 1 moves to the position of the steel balls 3, the steel balls 3 no longer need to maintain a relatively far relative position. At this time, the retaining frame 4 will drive the steel balls 3 to move toward the conical part of the sling shell 2 under the action of the spring Ⅰ6, and return to the original position, thereby completing the connection between the sling and the heavy object.
[0037] Releasing the connection between the sling and the heavy object is the reverse process of the above process, except that at this time, the holder lifting handle 8 is needed to lift the holder 4 to the position of triggering the handle locking device 9, and the three steel balls 3 are at a position where the shaft head 1-1 of the heavy object lifting shaft 1 passes through. The heavy object lifting shaft 1 can be pulled out of the sling, completing the separation of the sling and the heavy object. By toggling the lock release switch 10, the holder lifting handle 8 can be released, and the holder 4 and the sling housing 2 are restored to their original positions under the action of the spring Ⅰ6.
[0038] It is very practical in working conditions where the space is small and it is not convenient for manual operation, such as Fig.12 As shown, when the environment where the heavy object is located is not convenient for manual connection or the heavy object is cylindrical and it is not convenient to use a lifting belt, the lifting device can be used for connection.
[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A plug-in simple lifting device, characterized in that: The invention comprises a heavy object lifting shaft (1), a lifting device housing (2), a steel ball (3), a retainer (4), a spring lower support (5), a spring I (6) and a lifting shaft (7), wherein the lifting shaft (7) is arranged on the lifting device housing (2), the lifting shaft (7) is an upper support seat of the spring I (6), the spring I (6) is fixed to the bottom of the lifting shaft (7), the other end of the spring I (6) is connected to the spring lower support (5), the retainer (4) cooperates with the lifting device housing (2) through the spring lower support (5), and the retainer (4) is connected to the lifting device housing (2). ) is provided with a hole that cooperates with the steel ball (3), the steel ball (3) is assembled and connected with the retaining frame (4), and the sling housing (2) is also provided with a handle locking device (9), and the handle locking device (9) is connected with a retaining frame lifting handle (8), the fork of the retaining frame lifting handle (8) cooperates with the pin shaft of the retaining frame (4), and the retaining frame lifting handle (8) can drive the retaining frame (4) to move up and down, and the heavy object lifting shaft (1) is connected to the retaining frame (4) in the sling housing (2) through the steel ball (3).
2. The plug-in simple lifting device according to claim 1, characterized in that: The sling housing (2) and retainer (4) include a conical portion and a cylindrical portion. The retainer (4) is arranged inside the sling housing (2). The conical portion of the retainer (4) can cooperate with the conical portion inside the sling housing (2). The heavy object lifting shaft (1) includes a shaft head (1-1), a shaft neck (1-2) and a shaft body (1-3). The diameter of the shaft neck (1-2) is smaller than the diameters of the shaft head (1-1) and the shaft body (1-3). When the retainer (4) cooperates with the conical portion of the sling housing (2) under the action of the spring I (6), the steel ball (3) is in close contact with the hole on the retainer (4) and the sling housing (2) at the same time. The shaft neck (1-2) can pass through the spacing of the steel ball (3), but the shaft head (1-1) and the shaft body (1-3) cannot pass through.
3. The plug-in simple hanger according to claim 1, characterized in that: The retaining frame (4) is provided with three holes that cooperate with the steel balls (3), and there are three steel balls (3).
4. The plug-in simple lifting device according to claim 1, characterized in that: The handle locking device (9) is also provided with a lock release switch (10), which comprises a lock core (10-1), a spring II (10-2) and a handle (10-3). The lock core (10-1) is connected to the handle (10-3) and the spring II (10-2). The lock core (10-1), the spring II (10-2) and the handle (10-3) are assembled on the lock release switch (10) body. The lock core (10-1) is a semi-cylindrical body. The lock core (10-1) is kept in an extended state by the spring II (10-2). The upper part of the head of the lock core (10-1) is a spherical surface.
5. The plug-in simple lifting device according to claim 4, characterized in that: The retainer lifting handle (8) is hinged on the handle locking device (9). When the handle of the retainer lifting handle (8) moves clockwise to the lock core (10-1), it can push the lock core (10-1) to retract into the interior by overcoming the force of the spring II (10-2). When the retainer lifting handle (8) moves counterclockwise, the handle is locked by the extended lower plane of the lock core.
6. The plug-in simple hanger according to claim 1, characterized in that: The suspension shaft (7) and the handle locking device (9) are welded to the suspension tool housing (2).
7. The plug-in simple lifting device according to claim 1, characterized in that: The connection between the suspension shaft (7) and the suspension tool housing (2) is by threaded connection or bolted connection.