Chain penetrating device

Abstract

The utility model discloses a chain penetrating device, which relates to the field of mechanical tools and comprises a supporting panel, a driving motor with a shaft rod self-locking function, a switch box and a chain end box, the supporting panel is vertically placed, a shaft hole is formed in the supporting panel, and a shaft rod of the driving motor penetrates through the shaft hole; the chain end box is mounted on the shaft rod; the switch box is arranged on the supporting panel and located above the chain end box. A switch elastic piece is arranged on the switch box, and the distance between the switch elastic piece and the chain end box is smaller than the length from the chain inlet and outlet to the farthest edge of the chain end box. According to the structure, a chain end box is vertically arranged, a chain wheel is connected with a motor shaft rod with a shaft rod self-locking function, a shell of the chain end box is rotationally connected with the internal chain wheel, and a switch box for triggering a driving motor can be manually rotated and adjusted after a chain is inserted into the chain end box. And then, the motor is directly used for driving, the chain penetrating efficiency can be greatly improved, meanwhile, chain penetrating is more labor-saving, and operation is simpler.

Description

Technical Field

[0001] The present application relates to the field of mechanical tools, and in particular to a chain threading device. Background Art

[0002] The garage door machine track has a chain end. Since the chain links rotate with each other and the internal space of the chain end box is very small, it is difficult to insert the chain into the sprocket in the chain end, which is very inefficient. In addition, the chains often pile up and get stuck, making it impossible for the chain to be inserted into the chain end. Utility Model Content

[0003] The embodiment of the present application provides a chain threading device to solve the problem of difficulty and low efficiency in threading a chain into a sprocket. The chain threading device comprises a support panel, a drive motor with a shaft self-locking function, a switch box for controlling the drive motor, and a chain end box; the support panel is placed vertically, and a shaft hole is opened on the support panel, and the shaft of the drive motor passes through the shaft hole; the chain end box is installed on the shaft;

[0004] The switch box is arranged on the support panel and is located above the chain end box; a switch spring is arranged on the switch box, and the distance between the switch spring and the chain end box is less than the length from the upper chain entrance to the farthest edge of the chain end box.

[0005] Specifically, the opening of the chain end box faces upward.

[0006] Specifically, the chain end box includes an upper cover, a bottom cover and a sprocket. The sprocket is sleeved on the shaft and is located inside the upper cover and the bottom cover.

[0007] Specifically, the upper and lower ends of the sprocket are respectively sleeved with rolling bearings, the upper cover and the bottom cover are provided with through holes matching the rolling bearings, and the upper cover and the bottom cover are respectively sleeved on the rolling bearings at the upper and lower ends.

[0008] Specifically, a first chain entrance and a second chain entrance are provided on the upper cover and the bottom cover.

[0009] Specifically, a stop column is also installed on the support panel, and the stop column is arranged between the switch spring and the chain end box.

[0010] Specifically, when the switch box is located at the lower right side of the chain end box, the drive motor controls the shaft to rotate counterclockwise.

[0011] Specifically, when the switch box is located at the lower left of the chain end box, the drive motor controls the shaft to rotate counterclockwise.

[0012] Specifically, when the driving motor stops running, the shaft rod and the sprocket of the chain end box are in a locked state.

[0013] Specifically, the shaft rod has the same shape as the sleeve provided on the sprocket.

[0014] The beneficial effects brought about by the technical solution provided by the embodiment of the present application include at least: the chain end box is set vertically, and the sprocket and the motor shaft with the shaft self-locking function are connected, a rotation connection is set between the outer shell of the chain end box and the internal sprocket, and the switch box that triggers the drive motor can be manually adjusted after the chain is inserted, and the switch spring of the switch box is set above the chain end box, and the distance is less than the length from the chain entrance and exit on the chain end box to the farthest edge of the chain end box, ensuring that the drive motor can be triggered normally. The sprocket can be controlled to rotate after driving. This structure only needs to manually rotate the box body when inserting the chain end, and then directly use the motor drive, which can greatly improve the efficiency of chain threading, while making chain threading more labor-saving and simpler to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a chain threading device provided by an embodiment of the present application;

[0016] Figure 2 It is an exploded diagram of the chain-threading device;

[0017] Figure 3 This is the installation diagram of the chain end box.

[0018] Figure numerals: support panel-1, shaft hole-11, drive motor-2, shaft rod-21, switch box-3, switch spring-31, chain end box-4, upper cover-41, bottom cover-42, sprocket-43, through hole-44, rolling bearing-45, first chain entrance and exit-46, second chain entrance and exit-47, stop column-5. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0020] The term "multiple" as used herein refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0021] Figure 1 is a schematic diagram of the structure of the chain threading device provided in an embodiment of the present application, Figure 2It is an exploded schematic diagram of a chain threading device, which includes a support panel 1, a drive motor 2 with a shaft self-locking function, a switch box 3 and a chain end box 4. The support panel 1 is placed vertically, and an axial hole 11 is opened on the support panel 1, and the shaft 21 of the drive motor 2 passes through the axial hole 11. The drive motor 2 is fixed as a whole on a machine table or other table top, perpendicular to the vertical support panel 1, and the chain end box 4 is installed on the shaft 21. The switch box 3 body is installed on the support panel 1 and is located below the chain end box 4. The switch box 3 is electrically connected to the drive motor 2 to control the start and stop of the drive motor 2. A switch shrapnel 31 is provided on the switch box 3, and the distance between the switch shrapnel 31 and the chain end box 4 is less than the length from the chain entrance and exit on the chain end box to the farthest edge of the chain end box. The distance control here is to ensure that the chain end box 4 can rotate around the shaft 21 and touch the switch shrapnel 31. The driving motor 2 with the shaft self-locking function is to keep the shaft 21 stationary when the chain end box 4 is rotating.

[0022] See also Figure 2 In some embodiments, the chain end box 4 is provided with an opening facing upward, and the chain end box 4 includes an upper cover 41, a bottom cover 42 and a sprocket 43. The sprocket 43 is sleeved on the shaft 21 and is located inside the upper cover 41 and the bottom cover 42. The upper and lower ends of the sprocket 43 are sleeved with rolling bearings 45, respectively. The upper cover 41 and the bottom cover 42 are provided with through holes 44 matching the rolling bearings, and the upper cover 41 and the bottom cover 42 are sleeved on the rolling bearings 45 at the upper and lower ends, respectively. The function of the rolling bearing is to manually rotate the angle of the box body without rotating the internal sprocket 43 and the shaft 21. In this structure, the shaft 21 is consistent with the shape of the sleeve opened on the sprocket 43. In addition, the chain end box 4 can also be provided with an upper and lower integrated shell.

[0023] Figure 3 : is a schematic diagram of the installation of the chain end box. In some embodiments, a first chain inlet and outlet 46 and a second chain inlet and outlet 47 are provided on the upper cover 41 and the bottom cover 42. One of the ports is used for insertion and the other is used for output. When inserting the chain, first point the box body inlet and outlet toward the other side of the switch box 3, and then insert it into the rotating shaft 21 of the drive motor 2. The switch spring 31 must face the vertical direction of the shaft 21.

[0024] The chain is put into the box from one of the chain inlets and outlets, and one end of the chain entering the box body is placed on a groove of the internal sprocket 43. At this time, the drive motor 2 is not started, the shaft 21 and the sprocket 43 are in a locked state, and the box body is rotated vertically downward from the opening to the direction where the opening faces the switch spring 31. Because the shaft 21 does not rotate, when the chain end rotates clockwise, the chain will be put on the sprocket 43 one by one. After the chain end rotates half a circle, the chain has been put on half of the teeth of the sprocket 43. At this time, the chain is fixed on the sprocket 43 and will not slip out of the chain inlet and outlet. At this time, the first stage of threading the chain is over.

[0025] The box body itself can rotate 360 ​​degrees, and can be cut off when the switch spring piece 31 is touched and the driving motor 2 is locked, so a stop column 5 is installed on the support panel 1 at the position of the switch spring piece 31, and the stop column 5 is located between the switch spring piece 31 and the chain end box 4 to prevent the box body from rotating further.

[0026] It should be noted that the rotation angle of the chain end box 4 mainly depends on whether the chain end will slide out from the box body. The best setting is that the switch can be triggered when the box body is rotated to a vertical state at the chain entrance and exit.

[0027] When the box body touches the switch spring 31 to start the drive motor 2, the control shaft 21 rotates and drives the sprocket 43 to rotate. Two situations are considered here. When the switch box 3 is located at the lower right of the chain end box 4, the drive motor 2 controls the shaft 21 to rotate counterclockwise. It is also OK to set it at the lower left, but the blocking column 5 must face the center. When the switch box 3 is located at the lower left of the chain end box 4, the drive motor 2 controls the shaft 21 to rotate counterclockwise. The specific installation position is determined according to the actual situation. Figure 2 Taking the installation method in as an example, the shaft 21 drives the chain end to rotate counterclockwise with the sprocket 43, so that the chain continues to be driven by the sprocket 43 to enter from the second chain entrance 47. Because of the vertical placement structure, when the sprocket 43 drives the chain to rotate, due to the gravity of the chain, the chain will automatically fall off the sprocket 43 when it reaches the vertical downward position of gravity. Because the box body adjusts the opening downward when the driving motor 2 rotates, the chain will automatically fall off from the first chain entrance 46 after rotating 3 / 4 of a circle around the sprocket 43.

[0028] In some embodiments, if the entire device is placed horizontally or tilted, as long as the chain end can be passed through and the motor can be triggered, the same technical effect can be achieved by allowing the end to pass through another chain entrance and exit.

[0029] In summary, this solution sets the chain end box on the support panel, and connects the sprocket and the motor shaft with the shaft self-locking function. A rotating connection is set between the outer shell of the chain end box and the internal sprocket. After the chain is inserted, the switch box that triggers the drive motor can be manually adjusted. The switch spring of the switch box is set to a position that can be triggered when the chain end box rotates to ensure that the drive motor can be triggered normally. The sprocket can be controlled to rotate after driving. This structure only requires manual rotation of the box body when inserting the chain end, and then the motor drive is directly used, which can greatly improve the efficiency of chain threading, while making chain threading more labor-saving and simpler to operate.

[0030] The preferred embodiments of the present invention are described above; it should be understood that the present invention is not limited to the above-mentioned specific implementation modes, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A chain threading device, characterized in that: The invention comprises a support panel (1), a drive motor (2) with a shaft self-locking function, a switch box (3) for controlling the drive motor (2), and a chain end box (4); the support panel (1) is placed vertically, an axis hole (11) is provided on the support panel (1), and the shaft (21) of the drive motor (2) passes through the axis hole (11); the chain end box (4) is installed on the shaft (21); The switch box (3) is arranged on the support panel (1) and is located below the chain end box (4); a switch spring (31) is arranged on the switch box (3), and the distance between the switch spring (31) and the chain end box (4) is less than the length from the chain entrance and exit on the chain end box (4) to the farthest edge of the chain end box (4).

2. The chain threading device according to claim 1, characterized in that: The opening of the chain end box (4) faces upward.

3. The chain threading device according to claim 2, characterized in that: The chain end box (4) comprises an upper cover (41), a bottom cover (42) and a sprocket (43); the sprocket (43) is sleeved on the shaft (21) and is located inside the upper cover (41) and the bottom cover (42).

4. The chain threading device according to claim 3, characterized in that: The upper and lower ends of the sprocket (43) are respectively sleeved with rolling bearings (45); the upper cover (41) and the bottom cover (42) are provided with through holes (44) matching the rolling bearings; the upper cover (41) and the bottom cover (42) are respectively sleeved on the rolling bearings (45) at the upper and lower ends.

5. The chain threading device according to claim 3, characterized in that: The upper cover (41) and the bottom cover (42) are provided with a first chain entrance and exit (46) and a second chain entrance and exit (47).

6. The chain threading device according to claim 1, characterized in that: A stop column (5) is also installed on the support panel (1), and the stop column (5) is arranged between the switch spring (31) and the chain end box (4).

7. The chain threading device according to claim 6, characterized in that: When the switch box (3) is located at the lower right side of the chain end box (4), the drive motor (2) controls the shaft rod (21) to rotate counterclockwise.

8. The chain threading device according to claim 6, characterized in that: When the switch box (3) is located at the lower left of the chain end box (4), the drive motor (2) controls the shaft rod (21) to rotate clockwise.

9. The chain threading device according to claim 7 or 8, characterized in that: When the driving motor (2) stops running, the shaft rod (21) and the sprocket (43) of the chain end box (4) are in a locked state.

10. The chain threading device according to claim 9, characterized in that: The shaft rod (21) and the sleeve formed on the sprocket (43) are of the same shape.

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