Electric wrench driving hoist pressing and embedding device

Abstract

The utility model discloses a pressing and embedding device for an electric wrench driving hoist. The pressing and embedding device comprises a shell, a gear shaft assembly and a stop assembly, wherein the gear shaft assembly and the stop assembly are installed on the shell in a matched mode. The gear shaft assembly and the stop assembly are matched through a limiting structure. The gear shaft assembly is suitable for moving along the axis of the gear shaft assembly to be limited with the stop assembly or be unlimited from the stop assembly. The chain block has the beneficial effects that compared with an existing chain block, the chain block is provided with the gear shaft assembly and the stop assembly; the stop assembly and the gear shaft assembly are matched through a limiting structure, so that the electric wrench driving hoist can still have the function of suspending a heavy object without moving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting machinery, in particular to a kind of electric wrench drive cage pressure embedding device. BACKGROUND

[0002] Hand chain hoist is a kind of simple, portable hand-operated hoisting machinery, also known as "ring chain hoist" or "chain block"; Its driving structure mainly includes hand sprocket, hand chain and hoisting sprocket etc.; By manually driving hand sprocket, hand chain is driven to rotate, and then the rotation of hoisting sprocket is realized to control the lifting or lowering of goods; When the suspended load is not moving, the hand chain should be tied on the hoisting chain, which can prevent the automatic falling of the load.

[0003] Because the labor intensity of manual operation is relatively large, the prior art discloses a driving mode by electric wrench to replace manual driving, for example, a kind of hand electric chain hoist disclosed in Chinese patent application No. CN118270680A.In the technical solution, the traditional hand sprocket and hand chain are replaced by the cooperation of the pinion and the gear ring, i.e. the hand sprocket and hand chain have been removed, so that the anti-falling function of the traditional hand chain hoist when the suspended load is not moving no longer exists. At the same time, it is relatively dangerous to rely solely on the motor in the electric wrench for self-locking to achieve the anti-falling of the suspended load.

[0004] Therefore, it is necessary to improve the structure of the existing electric wrench drive cage. CONTENT OF THE UTILITY MODEL

[0005] The present application aims to provide an electric wrench drive cage that can solve at least one of the defects in the background art.

[0006] To achieve the above at least one purpose, the technical solution adopted by the present application is as follows: an electric wrench drive cage pressure embedding device, comprising a housing and a pinion assembly and a stop assembly installed on the housing in cooperation; the pinion assembly and the stop assembly are cooperated by a limiting structure; the pinion assembly is adapted to be limited or released by the stop assembly by moving along its own axis.

[0007] Preferably, the limiting structure includes a limiting hole provided on the pinion assembly, a locking pin provided on the stop assembly and an elastic member sleeved on the pinion assembly; the pinion assembly is adapted to be clamped and limited by the limiting hole and the locking pin under the elastic force of the elastic member; the limiting hole and the locking pin are released by axially moving the pinion assembly by pressing it with the electric wrench.

[0008] Preferably, the limiting structure comprises a limiting hole arranged on the stop component, a locking pin arranged on the gear shaft component and an elastic member sleeved on the gear shaft component; the gear shaft component is adapted to be clamped and limited by the limiting hole and the locking pin under the elastic force of the elastic member; the gear shaft component is axially moved by the electric wrench to release the limiting of the limiting hole and the locking pin.

[0009] Preferably, the gear shaft component comprises a gear shaft, a driving shaft and a locking flange; the gear shaft is rotatably installed on the shell, the driving shaft is axially slidably inserted into the gear shaft, the locking flange is fixedly installed on the driving shaft, and the limiting hole is arranged on the locking flange; the elastic member is arranged between the locking flange and the shell; the electric wrench is adapted to cooperate with the driving shaft and axially move the driving shaft by pressing.

[0010] Preferably, the gear shaft component comprises a gear shaft and a locking flange; the gear shaft is rotatably installed on the shell, the locking flange is slidably sleeved on the gear shaft, and the cooperation section of the locking flange and the gear shaft is a non-circular section; the limiting hole is arranged on the locking flange, and the elastic member is arranged between the locking flange and the shell; the electric wrench is adapted to cooperate with the gear shaft and move the locking flange by pressing.

[0011] Preferably, the stop component comprises a mounting seat and a screw cover; the mounting seat is fixedly installed on the shell, and the gear shaft component penetrates through the mounting seat; the screw cover is threadedly installed on the end of the mounting seat, and the locking pin is arranged on the screw cover.

[0012] Preferably, a plurality of limiting holes and locking pins are arranged and are equally spaced along the circumferential direction of the gear shaft component.

[0013] Preferably, the elastic member is one of a spring sheet and a spring.

[0014] Compared with the prior art, the application has the beneficial effects that:

[0015] Compared with the existing hand-operated hoist, the application is provided with a gear shaft component and a stop component; the stop component and the gear shaft component are cooperated by a limiting structure, so that the electric wrench driven hoist can still have the function of suspending heavy objects. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the gear shaft component and the stop component cooperatively installed on the shell in the application.

[0017] Figure 2 It is an exploded state schematic view of the application.

[0018] Figure 3 It is the cross section schematic view of example one in the utility model.

[0019] Figure 4 It is the cross section schematic view of example one in the utility model. Figure 3 It is the partial enlarged schematic view of A in the utility model.

[0020] Figure 5 It is the cross section schematic view when example one in the utility model is released from the limiting.

[0021] Figure 6 It is the cross section schematic view of example two in the utility model.

[0022] In the drawing: shell 1, pinion shaft assembly 2, gear shaft 20, drive shaft 21, locking flange 22, limiting hole 220, stop assembly 3, mounting seat 30, mounting hole 300, screw cover 31, locking pin 310, elastic member 4, bearing 5. Specific implementation

[0023] In the following, the application is further described in conjunction with specific implementation, and it needs to be explained that, on the premise of not conflicting, the following described embodiments or technical features between each other can be combined to form new embodiments.

[0024] In the description of the application, it needs to be explained that, for the orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawing, and only for the convenience of describing the application and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the application.

[0025] It needs to be explained that, the terms "first", "second" and the like in the specification and claims of the application are used to distinguish similar objects, and not necessarily used to describe a specific order or sequence.

[0026] The terms "include" and "have" and their any variants in the specification and claims of the application are intended to cover the non-exclusive inclusion, for example, the process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] One of the preferred embodiments of the application, such as Figures 1 to 6As shown, an electric wrench driving hoist press embedding device includes a shell 1 and a gear shaft assembly 2 and a stop assembly 3 installed on the shell 1. The gear shaft assembly 2 and the stop assembly 3 are matched through a limiting structure. The gear shaft assembly 2 can be limited or released by the stop assembly 3 through moving along its own axis.

[0028] It should be known that the driving structure of the traditional hand chain hoist mainly includes a hand chain wheel, a hand chain and a lifting sprocket; the hand chain wheel is driven manually to drive the hand chain to rotate, and then the rotation of the lifting sprocket is realized to control the lifting or lowering of the article; when the suspended heavy object is stationary, the hand chain should be tied on the lifting chain to prevent the heavy object from falling automatically. However, in the prior art, the hand chain and the hand chain wheel are removed, and the traditional manual operation is changed to electric operation; at the same time, the removal of the hand chain wheel and the hand chain makes the function of the hand chain hoist suspending the heavy object not exist.

[0029] In the embodiment, the stop assembly 3 can be matched with the gear shaft assembly 2 through the limiting structure, so that the stop assembly 3 can limit the operation of the gear shaft assembly 2. The limiting structure has various setting modes, including but not limited to the following two modes.

[0030] Mode one: the limiting structure includes a limiting hole 220 arranged on the gear shaft assembly 2, a locking pin 310 arranged on the stop assembly 3 and an elastic member 4 sleeved on the gear shaft assembly 2. The gear shaft assembly 2 can be clamped and limited by the limiting hole 220 and the locking pin 310 under the elastic force of the elastic member 4. The limiting of the limiting hole 220 and the locking pin 310 is released by pressing the gear shaft assembly 2 to move axially by the electric wrench.

[0031] Mode two: the limiting structure includes a limiting hole 220 arranged on the stop assembly 3, a locking pin 310 arranged on the gear shaft assembly 2 and an elastic member 4 sleeved on the gear shaft assembly 2. The gear shaft assembly 2 can be clamped and limited by the limiting hole 220 and the locking pin 310 under the elastic force of the elastic member 4. The limiting of the limiting hole 220 and the locking pin 310 is released by pressing the gear shaft assembly 2 to move axially by the electric wrench.

[0032] It should be known that the above two modes can meet the needs of the present application, and those skilled in the art can select according to actual needs; in the embodiment, the mode one is preferred; at the same time, the specific structure and working principle of the electric wrench are known to those skilled in the art, so they will not be described in detail here.

[0033] It should also be known that the principles and structures of mode one and mode two are the same, only the positions of the locking pin 310 and the limiting hole 220 are exchanged, and the above two modes can be implemented in actual operation.

[0034] In this embodiment, there are various specific structural arrangements of the pinion shaft assembly 2. For the convenience of understanding, two specific examples are described below.

[0035] Example 1: As shown in the figure, the pinion shaft assembly 2 includes a pinion shaft 20 and a locking flange 22. Figures 2 to 4

[0036] Specifically, the pinion shaft 20 is rotatably installed in the housing 1, the locking flange 22 is slidably sleeved on the pinion shaft 20, and the matching cross section of the locking flange 22 and the pinion shaft 20 is a non-circular cross section. The limiting hole 220 is arranged on the locking flange 22, and the elastic member 4 is arranged between the locking flange 22 and the housing 1. The electric wrench can be matched with the pinion shaft 20 and press the locking flange 22 to move.

[0037] Example 2: As shown in the figure, the pinion shaft assembly 2 includes a pinion shaft 20, a drive shaft 21, and a locking flange 22. Figure 6

[0038] Specifically, the pinion shaft 20 is rotatably installed in the housing 1, the drive shaft 21 is axially slidably inserted into the pinion shaft 20, the locking flange 22 is fixedly installed on the drive shaft 21, and the limiting hole 220 is arranged on the locking flange 22. The elastic member 4 is arranged between the locking flange 22 and the housing 1. The electric wrench can be matched with the drive shaft 21 and press it to move axially.

[0039] For example 1: The locking flange 22 is slidably sleeved on the pinion shaft 20, and the limiting hole 220 is arranged on the locking flange 22, so that the limiting structure is to limit the locking flange 22, so that the locking flange 22 cannot rotate. However, in this embodiment, the entire pinion shaft assembly 2 cannot rotate, so the locking flange 22 needs to limit the pinion shaft 20 while being slidably sleeved on the pinion shaft 20. Therefore, the matching cross section of the locking flange 22 and the pinion shaft 20 is a non-circular cross section. However, the pinion shaft 20 is mechanically matched with the electric wrench, so in this embodiment, the matching cross section of the locking flange 22 and the pinion shaft 20 is set to a regular hexagon.

[0040] For example 2: The locking flange 22 is fixedly sleeved on the drive shaft 21, and the sleeve cross section of the locking flange 22 and the drive shaft 21 can be any cross section. However, the drive shaft 21 is driven by the electric wrench, so in order to adapt to the driving end of the electric wrench, the drive shaft 21 is set to a regular hexagon in this embodiment. Therefore, in order to better adapt to the drive shaft 21, the cross section of the locking flange 22 is also a regular hexagon.

[0041] It should be understood that there are various connection methods for the fixed connection between the locking flange 22 and the drive shaft 21, including but not limited to the following two methods.​​

[0042] The first way is that the locking flange 22 and the driving shaft 21 are fixedly connected through interference fit.

[0043] The second way is that the locking flange 22 and the driving shaft 21 are fixedly connected through welding.

[0044] It should be understood that the above two ways can meet the needs of the present application, and those skilled in the art can choose according to actual needs; the first way is preferred in the embodiment.

[0045] In the embodiment, as shown in Figures 2 to 5 The locking pin 310 is arranged on the screw cap 31. The screw cap 31 can be directly installed on the shell 1, but it is difficult to process directly on the shell 1 and is not convenient for processing.

[0046] Therefore, in the embodiment, the stop assembly 3 further comprises a mounting seat 30. The mounting seat 30 is fixedly installed on the shell 1, and the gear shaft assembly 2 penetrates the mounting seat 30. The screw cap 31 is threadedly installed on the end of the mounting seat 30. The mounting seat 30 is provided with a mounting hole 300, and the gear shaft 20 is rotatably installed on the shell 1 and extends out of the mounting hole 300 so that the gear shaft 20 can cooperate with the electric wrench.

[0047] It should be understood that when the weight is suspended and kept stationary, the weight will generate a force on the gear shaft 20 under the influence of its own gravity, so that the limiting hole 220 arranged on the locking flange 22 will generate a force on the locking pin 310 arranged on the screw cap 31; therefore, the number of the limiting hole 220 and the locking pin 310 can be set to be multiple; the limiting hole 220 is arranged at equal intervals along the circumferential direction of the locking flange 22, and the number and position of the locking pin 310 correspond to those of the limiting hole 220. Of course, the limiting hole 220 and the locking pin 310 can also be arranged as single.

[0048] It should also be understood that, as described above, when the weight is suspended and kept stationary, the limiting hole 220 will generate a force on the locking pin 310, so in the embodiment, the rotation direction of the screw cap 31 and the mounting seat 30 when they are threadedly connected should be opposite to the direction of the force of the limiting hole 220 on the locking pin 310; otherwise, the connection between the screw cap 31 and the mounting seat 30 will be loose under the influence of the force for a long time.

[0049] In the embodiment, as shown in Figures 2 to 5As shown, in order to make the rotation of the gear shaft 20 more smooth, and reduce the wear between the gear shaft 20 and the shell 1, the gear shaft 20 is rotatably installed on the shell 1 through the bearing 5. When the heavy object needs to be transported, the driving end of the electric wrench needs to be connected with the gear shaft 20, and is pressed to make the locking flange 22 displace along the axial direction of the gear shaft 20 and close to one side of the shell 1, so that the limiting hole 220 is away from the locking pin 310, so that the gear shaft 20 can rotate; at this moment, the switch of the electric wrench is pulled, and the gear shaft 20 is driven to rotate. After the transportation is completed, the action of the electric wrench is stopped, and after the electric wrench is removed, the locking flange 22 is reset under the elastic force of the elastic member 4, so that the limiting hole 220 and the locking pin 310 are re-limited, and the gear shaft 20 is re-limited.

[0050] It should be known that the elastic member 4 can be provided as a spring piece or a spring; both of them can be implemented in the embodiment; the person skilled in the art can choose according to the needs.

[0051] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. An electrically driven spanner drive sprocket press device, characterized in that, The application relates to a gear box and a locking assembly matched with the gear box. The locking structure comprises a limiting hole arranged on the gear shaft assembly, a locking pin arranged on the locking assembly and an elastic member sleeved on the gear shaft assembly; the gear shaft assembly is adapted to be clamped and limited by the limiting hole and the locking pin under the elastic force of the elastic member; the limiting hole and the locking pin are released from the limitation by axially moving the gear shaft assembly through the pressing of the electric wrench.

2. A power wrench driven sprocket press assembly as claimed in claim 1 wherein: The locking structure comprises a limiting hole arranged on the gear shaft assembly, a locking pin arranged on the locking assembly and an elastic member sleeved on the gear shaft assembly; the gear shaft assembly is adapted to be clamped and limited by the limiting hole and the locking pin under the elastic force of the elastic member; the limiting hole and the locking pin are released from the limitation by axially moving the gear shaft assembly through the pressing of the electric wrench.

3. A power wrench driven sprocket press assembly as claimed in claim 1 wherein: The gear shaft assembly comprises a gear shaft, a driving shaft and a locking flange; the gear shaft is rotatably arranged on the housing, the driving shaft is axially slidably inserted into the gear shaft, the locking flange is fixedly arranged on the driving shaft, and the limiting hole is arranged on the locking flange; the elastic member is arranged between the locking flange and the housing; the electric wrench is adapted to be matched with the driving shaft and axially move the driving shaft through pressing.

4. A power wrench driven block press assembly as claimed in claim 2 wherein: The gear shaft assembly comprises a gear shaft and a locking flange; the gear shaft is rotatably arranged on the housing, the locking flange is slidably sleeved on the gear shaft, and the matching section of the locking flange and the gear shaft is a non-circular section; the limiting hole is arranged on the locking flange, and the elastic member is arranged between the locking flange and the housing; the electric wrench is adapted to be matched with the gear shaft and move the locking flange through pressing.

5. A power wrench driven block press assembly as claimed in claim 2 wherein: The locking assembly comprises a mounting base and a screw cover; the mounting base is fixedly arranged on the housing, and the gear shaft assembly penetrates through the mounting base; the screw cover is threadedly arranged on the end of the mounting base, and the locking pin is arranged on the screw cover.

6. An electrically powered spanner driven sprocket press assembly as claimed in claim 2, wherein: The limiting hole and the locking pin are both arranged in multiple and are equally spaced along the circumferential direction of the gear shaft assembly.

7. A power wrench driven block press assembly as claimed in any one of claims 2 to 6 wherein: The elastic member is one of a spring and a spring piece.

8. A power wrench driven block press assembly as claimed in claim 7 wherein: ​

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