Expansion claw

Abstract

The utility model discloses an expansion claw which comprises a fixed seat, a movable working table is movably arranged on the surface of the fixed seat, a fixed clamping plate is vertically arranged at the top end of the movable working table, a movable plate is transversely and movably arranged in the fixed clamping plate, and a first claw is transversely arranged at one end of the movable plate. First driving rods are movably connected to the upper end and the lower end of the side face of the movable plate correspondingly, first driving arms are movably connected to the other ends of the first driving rods, the first driving arms are obliquely and movably arranged on the side faces in the fixed clamping plates, and second claws are transversely arranged at the other ends of the first driving arms. A second driving rod is transversely arranged on one side of the first driving rod, one end of the second driving rod is movably connected with the movable plate, the other end of the second driving rod is movably connected with a second driving arm, and the second driving arm is obliquely and movably arranged on the side face of the interior of the fixed clamping plate; and a third claw is transversely arranged on the other side of the second driving arm.

Description

Technical Field

[0001] The utility model relates to the field of rubber rings, in particular to expansion claws. Background Art

[0002] During the installation of equipment that requires sealing, it is often necessary to add seals such as rubber rings or metal gaskets at the sealing joints to assist in sealing. Seals of different specifications need to correspond to different assembly requirements during the installation process, and the installation process is relatively complicated. Therefore, manual operations are often used to expand seals such as rubber rings or metal gaskets to adapt to the assembly needs of different equipment. Since rubber parts are usually difficult to expand, the operating efficiency is very low, so expanding claws are proposed. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] The cam is secured to the upper and lower ends of the movable frame, and the cam is secured to the lower end of the movable frame, and the cam is secured to the lower end of the mobile frame, and the cam is secured to the lower end of the mobile frame.

[0005] Preferably, a first cylinder is provided between the movable workbench and the fixed seat, and the first cylinder is laterally arranged at one side of the surface of the fixed seat, and a driving connection is established between the first cylinder and the movable workbench.

[0006] Preferably, a second cylinder is provided between the fixed clamping plate and the movable workbench, and the second cylinder is laterally located on one side of the fixed clamping plate, and the second cylinder is drivingly connected to the movable plate.

[0007] Preferably, the fixing seat is provided with an expansion range limiting frame, and the expansion range limiting frame is vertically located on the other side of the fixing seat, and the first claw, the second claw and the third claw respectively pass through the expansion range limiting frame.

[0008] Compared with the prior art, the beneficial effect of the present invention is that the first claw is moved together with the first driving rod and the second driving rod are driven to drive the first driving arm and the second driving arm to move the second claw and the third claw, thereby driving the first claw, the second claw and the third claw to close or expand, and when the first claw, the second claw and the third claw are in a closed state, the rubber ring can be put between the first claw, the second claw and the third claw and then move in the opposite direction inside the fixed splint through the moving plate, thereby driving the first claw, the second claw and the third claw to expand outward and expand the rubber ring.

[0009] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 Schematic diagram of the structure of the expanded claw;

[0012] Figure 2 This is another structural diagram of the expanded claw;

[0013] Figure 3 This is another structural diagram of the expanded claws.

[0014] As shown in the figure: 1. Fixed seat, 2. Mobile workbench, 3. First cylinder, 4. Expansion range limit frame, 5. Second cylinder, 6. First claw, 7. Second claw, 8. Third claw, 9. Fixed splint, 10. Mobile plate, 11. First driving rod, 12. First driving arm, 13. Second driving rod, 14. Second driving arm. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-3 In the embodiment of the present invention, the expansion claw includes a fixed seat 1, a movable workbench 2 is movably provided on the surface of the fixed seat 1, and a fixed splint 9 is vertically provided on the top of the movable workbench 2, and the fixed splint 9 and the movable workbench 2 are in the same moving direction, a movable plate 10 is provided inside the fixed splint 9 for horizontal movement, and a first claw 6 is horizontally provided at one end of the movable plate 10, and the first claw 6 horizontally penetrates the fixed splint 9, and the upper and lower ends of the side of the movable plate 10 are movably connected with a first driving rod 11, and the first The other end of the driving rod 11 is movably connected to the first driving arm 12, and the first driving arm 12 is movably arranged on the side surface inside the fixed splint 9, and the other end of the first driving arm 12 is transversely provided with a second claw 7, and the second claw 7 passes through the fixed splint 9 and the second claw 7 is parallel to the first claw 6. A second driving rod 13 is transversely provided on one side of the first driving rod 11, and the second driving rod 13 is transversely located at the bottom end of the fixed splint 9, and one end of the second driving rod 13 is movable between the movable plate 10. The other end of the second driving rod 13 is movably connected to the second driving arm 14, and the second driving arm 14 is obliquely movably arranged on the side surface inside the fixed splint 9. The other side of the second driving arm 14 is laterally provided with a third claw 8, and the third claw 8 passes through the fixed splint 9 and the third claw 8, the second claw 7 and the first claw 6 are parallel to each other, thereby driving the movable plate 10 to translate inside the fixed splint 9 to move the first claw 6 and at the same time drive the first driving rod 11 and the second driving rod 13 to drive The first driving arm 12 and the second driving arm drive the second claw 7 and the third claw 8 to move, thereby driving the first claw 6, the second claw 7 and the third claw 8 to close or expand, and when the first claw 6, the second claw 7 and the third claw 8 are in a closed state, the rubber ring can be put between the first claw 6, the second claw 7 and the third claw 8 and then move in the opposite direction inside the fixed splint 9 through the movable plate 10, thereby driving the first claw 6, the second claw 7 and the third claw 8 to expand outward and expand the rubber ring.

[0017] A first cylinder 3 is arranged between the movable workbench 2 and the fixed seat 1, and the first cylinder 3 is laterally arranged on one side of the surface of the fixed seat, and the first cylinder 3 is driven and connected to the movable workbench 2, so that the movable workbench 2 and the fixed splint 9 are driven to move on the fixed seat 1 through the first cylinder 3.

[0018] A second cylinder 5 is provided between the fixed splint 9 and the movable workbench 2, and the second cylinder 5 is laterally located on one side of the fixed splint 9, and the second cylinder 5 is driven and connected to the movable plate 10, so that the second cylinder 5 drives the movable plate 10 to move between the fixed splints 9 and drives the first claw 6, the second claw 7 and the third claw 8 to close or expand.

[0019] The fixed seat 1 is provided with an expansion range limit frame 4, and the expansion range limit frame 4 is vertically located on the other side of the fixed seat 1, and the first claw 6, the second claw 7 and the third claw 8 respectively penetrate the expansion range limit frame 4, and the first claw 6, the second claw 7 and the third claw 8 are closed or expanded inside the expansion range limit frame 4.

[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. Expansion claws, including a fixing seat, characterized in that: The movable workbench is movably provided on the surface of the fixed seat, and a fixed splint is vertically provided on the top of the movable workbench, and the fixed splint and the movable workbench are in the same moving direction, a movable plate is provided inside the fixed splint for horizontal movement, and a first claw is horizontally provided at one end of the movable plate, and the first claw horizontally penetrates the fixed splint, and the upper and lower ends of the side surface of the movable plate are movably connected to the first driving rod, and the other end of the first driving rod is movably connected to the first driving arm, the first driving arm is obliquely movably provided on the side surface inside the fixed splint, and the other end of the first driving arm is horizontally provided with a first Two claws, and the second claw passes through the fixed splint and the second claw is parallel to the first claw. A second driving rod is horizontally arranged on one side of the first driving rod, and the second driving rod is horizontally located at the bottom end of the fixed splint, and one end of the second driving rod is movably connected to the movable plate, the other end of the second driving rod is movably connected to the second driving arm, and the second driving arm is obliquely movably arranged on the side surface inside the fixed splint, and a third claw is horizontally arranged on the other side of the second driving arm, and the third claw passes through the fixed splint and the third claw, the second claw and the first claw are parallel to each other.

2. The expansion claw according to claim 1, characterized in that A first cylinder is provided between the movable workbench and the fixed seat, and the first cylinder is transversely arranged at one side of the surface of the fixed seat, and a driving connection is established between the first cylinder and the movable workbench.

3. The expansion claw according to claim 1, characterized in that A second cylinder is provided between the fixed clamping plate and the movable workbench, and the second cylinder is laterally located on one side of the fixed clamping plate, and the second cylinder is driven and connected to the movable plate.

4. The expansion claw according to claim 1, characterized in that The fixing seat is provided with an expansion range limiting frame, and the expansion range limiting frame is vertically located on the other side of the fixing seat, and the first claw, the second claw and the third claw respectively penetrate the expansion range limiting frame.

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