Rail sliding type cage curtain door opening and closing eccentric device

Abstract

The utility model provides a rail sliding type cage curtain door opening and closing eccentric device which comprises a base, two supporting plates which are symmetrically arranged are arranged on the side portion of the base, an upper limiting block and a lower limiting block are arranged on the side portion, close to the supporting plates, of the base, the supporting plates are provided with second inserting holes, eccentric shafts are inserted into the second inserting holes, and the eccentric shafts are connected with the upper limiting block and the lower limiting block. The two ends of the eccentric shaft are connected with the supporting plate through a cotter pin and a second fixing bolt respectively, a clamping jaw is arranged on the side portion of the eccentric shaft, the eccentric shaft and the clamping jaw are rotationally connected, and a handle is arranged on the side portion of the clamping jaw. The problems of labor intensity, potential safety hazards and the like existing in opening or closing of an existing cage curtain door can be solved, the reliability and safety of the cage curtain door are improved, operation is easy, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment and relates to a track sliding type tank curtain door switch eccentric device. Background Art

[0002] As a very important lifting device in the lifting system, the cage is used for many purposes and in many situations. It is not only used to transport personnel into the well, but also to transport rough stones, materials, and various equipment and facilities. During the period of lifting personnel, personal safety must be ensured, so safe and reliable cage curtain doors must be installed at the entrance and exit of the cage. The cage curtain door must be safe, reliable, convenient, fast and easy to use.

[0003] In actual use, the opening and closing of the up and down sliding tank curtain door is mainly achieved by hanging the tank curtain door with a hook. The defects of using the hook are: on the one hand, the reliability of the hook is low. Since the hook is movable, it is difficult to hang the tank curtain door cross bar left and right in a balanced manner, and people are prone to bumping heads and injuring others during the up and down process; on the other hand, considering the reliability of the tank curtain door, a cross bar with higher strength is generally used. When the tank curtain door is open, the cross bar will be hung by the hook, and the hook will be subjected to greater force. After a period of use, the hook will be straightened. At this time, the tank curtain door is no longer reliable, and there is a safety hazard. Moreover, since the tank curtain door has a certain cumulative length of multiple cross bars, the chain of the hook needs a certain length, and the hook needs to be movable, so the cage may cause the hook to swing during operation, thereby hanging on the middle section facilities of the wellbore, posing certain safety hazards and easily causing safety accidents. Utility Model Content

[0004] The purpose of the utility model is to provide an eccentric device for the switch of a track sliding tank curtain door in view of the problems existing in the prior art, so as to solve the problem that when the switch of the existing up and down sliding tank curtain door adopts a hook to hang the tank curtain door, the hook is prone to displacement and deformation, resulting in low reliability and reduced on-site safety factor.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A track sliding tank curtain door switch eccentric device comprises a base, the side of the base is provided with two symmetrically arranged support plates, the support plate is provided with a second plug hole, an eccentric shaft is inserted in the second plug hole, the two ends of the eccentric shaft are respectively connected to the support plate by a cotter pin and a second fixing bolt, the side of the eccentric shaft is provided with a claw, and the two are rotatably connected by the eccentric shaft, the side of the claw is provided with a handle, and the side of the base close to the support plate is provided with an upper limit block and a lower limit block.

[0007] Furthermore, the base is provided with a plurality of first insertion holes, and fixing bolts are inserted into the first insertion holes.

[0008] Furthermore, the upper edge of the claw is a straight line, and the lower edge is an arc.

[0009] Furthermore, the cross section of the support plate is triangular.

[0010] Furthermore, the base is in the shape of a cube.

[0011] The beneficial effects of the utility model are:

[0012] The utility model can solve the problems of labor intensity and potential safety hazards in opening or closing the existing tank curtain door. By using the coordinated use of the clamping claws, the eccentric shaft and the upper and lower limit blocks, the tank curtain door can be opened and closed quickly and labor-savingly, thereby improving the reliability and safety of the tank curtain door, being easy to operate and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a side schematic diagram of the base of the utility model;

[0015] Figure 3 It is a schematic diagram of the use process of the utility model.

[0016] In the figure, 1-base, 1a-first plug hole, 1b-first fixing bolt, 1c-upper limit block, 1d-lower limit block, 2-support plate, 2a-second plug hole, 3-eccentric shaft, 4-cotter pin, 5-second fixing bolt, 7-claw, 8-handle, 9-groove slide, 10-tank curtain door cross bar assembly. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.

[0018] like Figure 1 As shown, a track sliding tank curtain door switch eccentric device includes a base 1. Specifically, the base 1 is a square body with certain reliability and bearing capacity. It is provided with two first plug holes 1a, and the first plug holes 1a are inserted with first fixing bolts 1b.

[0019] Two symmetrically arranged support plates 2 are provided on the side of the base 1. Specifically, the cross-section of the support plate 2 is triangular. A second plug hole 2a (not shown in the figure) is provided in the middle of the support plate 2. An eccentric shaft 3 is inserted in the second plug hole 2a, and both ends of the eccentric shaft 3 are connected to the support plate 2 by a cotter pin 4 and a second fixing bolt 5, respectively.

[0020] In addition, if Figure 2As shown, an upper limit block 1c and a lower limit block 1d are provided on the side of the base 1 close to the support plate 2, wherein the top edge of the upper limit block 1c is flush with the upper edge of the base 1, and the bottom edge of the lower limit block 1d is flush with the lower edge of the base 1.

[0021] A clamping claw 7 is provided on the side of the eccentric shaft 3, and the two are rotatably connected. A handle 8 is provided on the side of the clamping claw 7; specifically, the upper edge of the clamping claw 7 is a straight line, and the lower edge is an arc.

[0022] like Figure 3 As shown, the utility model is in use as follows:

[0023] When manpower pushes the tank curtain door cross bar assembly 10 upward from the bottom of the trough slide 9, the tank curtain door cross bar assembly 10 will drive the tank curtain door upward as well. When the tank curtain door cross bar assembly 10 contacts the bottom arc portion of the claw 7, the claw 7 can be pushed to rotate a certain angle. When the tank curtain door cross bar assembly 10 continues to move upward, the eccentric shaft 3 drives the claw 7 to automatically fall down, restricting the downward movement of the tank curtain door cross bar assembly 10. At this time, the tank curtain door is in an open state.

[0024] When the tank curtain door cross bar assembly 10 is pushed upward to the highest position by manpower, the claw 9 is rotated by the handle 10, and the claw 9 contacts the lower limit block 1d. When the tank curtain door cross bar assembly 10 is released, the tank curtain door will fall to a fully closed state.

Claims

1. A track sliding tank curtain door switch eccentric device, characterized in that: The invention comprises a base (1), wherein two symmetrically arranged support plates (2) are provided on the side of the base (1), the support plate (2) is provided with a second plug hole (2a), an eccentric shaft (3) is inserted into the second plug hole (2a), two ends of the eccentric shaft (3) are respectively connected to the support plate (2) via a cotter pin (4) and a second fixing bolt (5), a claw (7) is provided on the side of the cotter pin (4), and the two are rotatably connected, and a handle (8) is provided on the side of the claw (7); an upper limit block (1c) and a lower limit block (1d) are provided on the side of the base (1) close to the support plate (2).

2. The track sliding tank curtain door switch eccentric device according to claim 1, characterized in that: The base (1) is provided with a plurality of first insertion holes (1a), and first fixing bolts (1b) are inserted into the first insertion holes (1a).

3. The track sliding tank curtain door switch eccentric device according to claim 1, characterized in that: The upper edge of the claw (7) is a straight line, and the lower edge is an arc.

4. The track sliding tank curtain door switch eccentric device according to claim 1, characterized in that: The cross section of the support plate (2) is triangular.

5. The track sliding tank curtain door switch eccentric device according to claim 1, characterized in that: The base (1) is in the form of a cube.

Images