Manual expansion sleeve clamp

Abstract

The utility model provides a manual expansion sleeve clamp which comprises a sleeve, an expansion sleeve head is installed on the side, away from a clamp connecting plate, in the sleeve through an inner hexagonal countersunk head screw, and the end, close to the clamp connecting plate, of the sleeve is rotationally connected with an eccentric shaft. The end, located on the outer side of the sleeve, of the eccentric shaft is provided with an operation handle capable of adjusting the position through a connecting piece, the end, located in the sleeve, of the eccentric shaft is rotationally connected with a connecting rod, the end, away from the eccentric shaft, of the connecting rod is in threaded connection with a cross universal joint, and the other end of the cross universal joint is in threaded connection with a clamping jaw guide rod. The end, located in the cavity, of the clamping jaw guide rod is provided with a reset piece, the end, close to the cross universal joint, of the clamping jaw guide rod is rotationally connected with a plurality of sawtooth clamping jaws which are annularly arranged at equal intervals, and the device has the following beneficial effects that a power source and an air source are not needed for driving, and low-cost portable manual rapid expansion of the rolled film neck bush is achieved.

Description

Technical Field

[0001] The utility model relates to a manual expansion sleeve clamp, belonging to the technical field of material handling. Background Art

[0002] Currently, the mechanical equipment on the market for transporting cylindrical materials such as roll film with inner liner sleeves and aluminum rolls uses electric or pneumatic equipment to drive the clamp to clamp the roll film. The clamp cannot be used in scenarios where it is inconvenient to provide power and air source to the clamp. Even if electric or pneumatic equipment is used for transportation, the equipment is bulky and cumbersome to operate, resulting in low transportation efficiency and some safety hazards. The manufacturing cost of the clamp with power and air source is also relatively high. Therefore, the market is in urgent need of a roll film transporting clamp that does not require power and air source drive, has a simple structure, is low-cost and portable, and can quickly expand the inner liner of the roll film. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a manual expansion sleeve clamp to solve the problems raised in the above background technology. The present invention does not require power supply and air source drive, and can achieve low-cost portable manual rapid expansion of the roll film inner sleeve.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions: a manual expansion sleeve clamp, comprising a sleeve, a clamp connecting plate is installed at one end of the sleeve, an expansion sleeve head is installed on the side of the sleeve away from the clamp connecting plate through a hexagonal countersunk screw, a limit plate fixedly connected to the sleeve is sleeved on the side of the sleeve close to the clamp connecting plate, an eccentric shaft is rotatably connected to the end of the sleeve close to the clamp connecting plate, an operating handle with an adjustable position is installed on the end of the eccentric shaft outside the sleeve through a connecting piece, a holder for limiting the position of the operating handle is installed on the upper surface of the limit plate, and the eccentric shaft is inside the sleeve. One end is rotatably connected to a connecting rod, and the end of the connecting rod away from the eccentric shaft is threadedly connected to a cross universal joint, and the other end of the cross universal joint is threadedly connected to a clamping jaw guide rod. A cavity is provided at the end of the expansion sleeve away from the sleeve, and the end of the clamping jaw guide rod away from the cross universal joint extends into the cavity, and a reset part is installed at the end of the clamping jaw guide rod in the cavity. The end of the clamping jaw guide rod close to the cross universal joint is rotatably connected to a plurality of serrated clamping jaws arranged equidistantly in a ring, and a plurality of strip openings matching the serrated clamping jaws are evenly provided on the annular side surface of the expansion sleeve, and the end of the serrated clamping jaw away from the clamping jaw guide rod is inserted into the strip opening.

[0005] Furthermore, the connecting part includes a plug bolt, an axial hole is provided at one end of the eccentric shaft outside the sleeve, a through hole communicating with the axial hole is provided at the annular side surface of the eccentric shaft, an oblong hole is provided at one end of the operating handle close to the eccentric shaft, one end of the operating handle is inserted in the axial hole, a plug bolt passing through the oblong hole is inserted in the through hole, and one end of the plug bolt is threadedly connected to a cap nut.

[0006] Furthermore, the operating handle is a "Z"-shaped structure, and one end of the operating handle away from the eccentric shaft is threadedly connected to a spherical knob.

[0007] Furthermore, a pressure plate is connected and fixed to one end of the connecting rod close to the eccentric shaft. The pressure plate is a semicircular structure. A clamping bearing is provided on the side of the pressure plate away from the connecting rod. The clamping bearing is connected and fixed to the pressure plate by multiple hexagonal screws. The end of the eccentric shaft in the sleeve passes through the annular space formed by the pressure plate and the clamping bearing.

[0008] Furthermore, the outer surface of the sleeve and the outer surface of the expansion sleeve head are both provided with a plurality of arc-shaped openings, a deep groove ball bearing is rotatably mounted in the arc-shaped opening, and a portion of the deep groove ball bearing extends to the outside of the arc-shaped opening.

[0009] Furthermore, the reset member includes a spring, a spring is sleeved on one end of the clamping jaw guide rod in the cavity, a pressure plate is provided on the lower side of the spring, the pressure plate is sleeved on the clamping jaw guide rod, and a limiting nut is provided on the side of the pressure plate away from the spring, and the limiting nut is threadedly connected to the clamping jaw guide rod.

[0010] Beneficial effects of the utility model:

[0011] It can be manually operated without power or air supply. The operation is simple and smooth. The structure is simple, sturdy and durable. The friction between the roll film and the clamp is self-locking under the action of load gravity. It is safe and reliable and will not fall off. The load can be quickly detached by turning the operating handle. The operator can move materials quickly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a structural diagram of a manual expansion sleeve clamp of the utility model;

[0014] Figure 2 This is a cross-sectional view of a manual expansion sleeve fixture of the present utility model;

[0015] Figure 3 This is a right side view of a manual expansion sleeve fixture of the utility model;

[0016] In the figure: 1- sleeve, 2- eccentric shaft, 3- holder, 4- operating handle, 5- clamp connecting plate, 6- ball knob, 7- limit plate, 8- deep groove ball bearing, 9- hexagon socket countersunk screw, 10- expansion socket head, 11- serrated clamping jaw, 12- hexagon socket screw, 13- clamping bearing, 14- connecting rod, 15- cross universal joint, 16- clamping jaw guide rod, 17- spring, 18- pressure plate, 19- limit nut, 20- cover nut, 21- plug bolt. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: a manual expansion sleeve clamp, including a sleeve 1, a clamp connecting plate 5 is installed at one end of the sleeve 1, which is convenient for installing the sleeve 1 on vacuum handling equipment or other power-assisting equipment, an expansion sleeve head 10 is installed on the side of the sleeve 1 away from the clamp connecting plate 5 through a hexagonal countersunk screw 9, a limit plate 7 connected and fixed to the sleeve 1 is provided on the side of the sleeve 1 close to the clamp connecting plate 5, a holder 3 for limiting the position of the operating handle 4 is installed on the upper surface of the limit plate 7, the end of the sleeve 1 close to the clamp connecting plate 5 is rotatably connected to the eccentric shaft 2, and the end of the eccentric shaft 2 outside the sleeve 1 is equipped with an adjustable operating handle 4. The handle 4 is a "Z"-shaped structure, in which the eccentric shaft 2 is provided with an axial hole at one end outside the sleeve 1, and a through hole communicating with the axial hole is provided at the annular side surface of the eccentric shaft 2. An oblong hole is provided at the end of the operating handle 4 close to the eccentric shaft 2, and one end of the operating handle 4 is inserted in the axial hole. A plug bolt 21 passing through the oblong hole is inserted in the through hole, and one end of the plug bolt 21 is threadedly connected to a cover nut 20, so that one end of the operating handle 4 slides along the axial hole. At this time, the plug bolt 21 slides relative to the operating handle 4 in the oblong hole, thereby facilitating the operating handle 4 to be stuck in or removed from the holder 3, and the end of the operating handle 4 away from the eccentric shaft 2 is threadedly connected to a spherical knob 6.

[0019] See Figure 2 and Figure 3 The end of the eccentric shaft 2 in the sleeve 1 is rotatably connected to the connecting rod 14, wherein the connecting rod 14 is connected and fixed to the end of the eccentric shaft 2 close to the eccentric shaft 2 with a pressure plate, the pressure plate is a semicircular structure, and a clamping bearing 13 is provided on the side of the pressure plate away from the connecting rod 14. The clamping bearing 13 is connected and fixed to the pressure plate by multiple hexagonal screws 12, so that the end of the eccentric shaft 2 in the sleeve 1 passes through the annular space formed by the pressure plate and the clamping bearing 13, completing the rotational connection between the connecting rod 14 and the eccentric shaft 2.

[0020] See Figure 2The end of the connecting rod 14 away from the eccentric shaft 2 is threadedly connected to a cross universal joint 15, and the other end of the cross universal joint 15 is threadedly connected to a clamping claw guide rod 16. A cavity is opened at the end of the expansion sleeve head 10 away from the sleeve 1, and the end of the clamping claw guide rod 16 away from the cross universal joint 15 extends into the cavity. The end of the clamping claw guide rod 16 in the cavity is sleeved with a spring 17, and a pressure plate 18 is provided on the lower side of the spring 17. The pressure plate 18 is sleeved on the clamping claw guide rod 16, and a limiting nut 19 is provided on the side of the pressure plate 18 away from the spring 17. The limiting nut 19 is threadedly connected to the clamping claw guide rod 16. The limiting nut 19 and the pressure plate 18 work together to limit the relative position of the spring 17 and the clamping claw guide rod 16. When the eccentric shaft 2 is rotated by the operating handle 4, the spring 17 switches between compression and rebound.

[0021] See Figure 1-Figure 3 The end of the clamping jaw guide rod 16 close to the cross universal joint 15 is rotatably connected to a plurality of serrated clamping jaws 11 arranged in an annular shape and at equal distances. A plurality of strip openings that match the serrated clamping jaws 11 are evenly opened on the annular side surface of the expansion sleeve 10. The end of the serrated clamping jaw 11 away from the clamping jaw guide rod 16 is inserted into the strip opening and fixedly connected through the clamp connecting plate 5 with vacuum handling equipment or other power-assisting equipment. The clamp is lifted. When the clamp needs to move the workpiece with an inner sleeve and rolled film, the operating handle 4 is controlled to rotate, thereby driving the eccentric shaft 2, connecting rod 14, cross universal joint 15, and clamping jaw guide rod 16 to move, and then driving the serrated clamp 11 to slide and shrink on the expansion sleeve head 10. At this time, the outer diameters of the serrated clamping jaw 11 and the expansion sleeve head 10 are smaller than the inner diameter of the rolled film inner sleeve. The clamp is lifted and the expansion sleeve head 10 and the sleeve 1 are slowly inserted into the rolled film inner sleeve until The upper surface of the rolled film contacts the limit plate 7. At this time, the operating handle 4 can be controlled to rotate in the opposite direction, thereby driving the eccentric shaft 2, connecting rod 14, cross universal joint 15, and clamp guide rod 16 to move, and then driving the serrated clamp 11 to slide out on the expansion sleeve head 10. At this time, the serrations on the serrated clamp 11 are squeezed with the inner sleeve of the rolled film to complete the expansion work of the clamp and the inner sleeve of the rolled film. During the transportation of the rolled film, under the self-gravity of the rolled film, the serrations on the serrated clamp 11 will be firmly tightened with the inner sleeve of the rolled film to form a self-locking. At this time, the equipment can be controlled to transport the rolled film. It can be manually operated without power and air source. The operation is simple and smooth, the structure is simple, sturdy and durable, and the friction between the rolled film and the clamp is self-locking under the action of load gravity. It is safe and reliable and will not fall off. The load can be quickly disengaged by turning the operating handle 4, and the operator can transport materials quickly and efficiently.

[0022] See Figure 1-Figure 3 The outer surface of the sleeve 1 and the outer surface of the expansion head 10 are both provided with multiple arc-shaped openings, and a deep groove ball bearing 8 is rotatably installed in the arc-shaped opening. A part of the deep groove ball bearing 8 extends to the outside of the arc-shaped opening. The function of the deep groove ball bearing 8 is to enable the expansion head 10 to smoothly enter and exit the inner sleeve of the rolled film.

[0023] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A manual expansion sleeve clamp, comprising a sleeve (1), characterized in that: A clamp connecting plate (5) is installed at one end of the sleeve (1), and an expansion sleeve (10) is installed on the side of the sleeve (1) away from the clamp connecting plate (5) through a hexagonal countersunk screw (9). A limit plate (7) connected and fixed to the sleeve (1) is sleeved on the side of the sleeve (1) close to the clamp connecting plate (5). The end of the sleeve (1) close to the clamp connecting plate (5) is rotatably connected to the eccentric shaft (2), and the end of the eccentric shaft (2) outside the sleeve (1) is installed with an adjustable operating handle (4) through a connecting piece. A holder (3) for limiting the position of the operating handle (4) is installed on the upper surface of the limit plate (7). The end of the eccentric shaft (2) inside the sleeve (1) is rotatably connected to the connecting rod (14), and the connecting rod (14) is away from the One end of the eccentric shaft (2) is threadedly connected to a cross universal joint (15), and the other end of the cross universal joint (15) is threadedly connected to a clamping guide rod (16). A cavity is provided at the end of the expansion sleeve (10) away from the sleeve (1), and the end of the clamping guide rod (16) away from the cross universal joint (15) extends into the cavity. A reset member is installed at the end of the clamping guide rod (16) in the cavity. The end of the clamping guide rod (16) close to the cross universal joint (15) is rotatably connected to a plurality of serrated clamping jaws (11) arranged equidistantly in an annular shape. A plurality of strip openings matching the serrated clamping jaws (11) are evenly provided on the annular side surface of the expansion sleeve (10), and the end of the serrated clamping jaw (11) away from the clamping jaw guide rod (16) is inserted into the strip opening.

2. A manual expansion sleeve clamp according to claim 1, characterized in that: The connecting member includes a plug bolt (21), an axial hole is formed at one end of the eccentric shaft (2) outside the sleeve (1), a through hole communicating with the axial hole is formed on the annular side surface of the eccentric shaft (2), an oblong hole is formed at one end of the operating handle (4) close to the eccentric shaft (2), one end of the operating handle (4) is inserted into the axial hole, a plug bolt (21) passing through the oblong hole is inserted into the through hole, and one end of the plug bolt (21) is threadedly connected to a cap nut (20).

3. The manual expansion sleeve clamp according to claim 2, characterized in that: The operating handle (4) is a "Z"-shaped structure, and one end of the operating handle (4) away from the eccentric shaft (2) is threadedly connected to a spherical knob (6).

4. The manual expansion sleeve clamp according to claim 1, characterized in that: The connecting rod (14) is connected and fixed with a pressure plate at one end close to the eccentric shaft (2). The pressure plate is a semicircular structure. A clamping bearing (13) is provided on the side of the pressure plate away from the connecting rod (14). The clamping bearing (13) is connected and fixed to the pressure plate by a plurality of hexagonal screws (12). The end of the eccentric shaft (2) in the sleeve (1) passes through the annular space formed by the pressure plate and the clamping bearing (13).

5. The manual expansion sleeve clamp according to claim 1, characterized in that: The outer surface of the sleeve (1) and the outer surface of the expansion sleeve head (10) are both provided with a plurality of arc-shaped openings, a deep groove ball bearing (8) is rotatably mounted in the arc-shaped opening, and a portion of the deep groove ball bearing (8) extends to the outside of the arc-shaped opening.

6. The manual expansion sleeve clamp according to claim 1, characterized in that: The reset member includes a spring (17), and the spring (17) is sleeved on one end of the clamping jaw guide rod (16) in the cavity. A pressure plate (18) is provided on the lower side of the spring (17), and the pressure plate (18) is sleeved on the clamping jaw guide rod (16). A limiting nut (19) is provided on the side of the pressure plate (18) facing away from the spring (17), and the limiting nut (19) is threadedly connected to the clamping jaw guide rod (16).

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