Telescopic underground fence

Abstract

The utility model discloses a telescopic underground fence, which relates to the technical field of ore extraction, and comprises a first bottom plate and a second bottom plate, and the first bottom plate is fixed on the ground; the first stand column is rotationally connected to the first bottom plate; the second stand column is fixedly connected to the second bottom plate; the two telescopic pipes are parallel to each other, the two ends of each telescopic pipe are fixedly connected to the first stand column and the second stand column respectively, and each telescopic pipe is provided with multiple sections; the telescopic pipe comprises a first end joint pipe which is fixedly connected to the first stand column, a first opening is formed in the first end joint pipe, and a plurality of first stop levers are fixedly connected to the first end joint pipe; the second end joint pipe is fixedly connected to the second stand column, and a plurality of third stop levers are fixedly connected to the second end joint pipe; the middle section pipe is provided with a second opening, and a plurality of second stop levers are fixedly connected to the middle section pipe; the device has the advantages of convenience in use, high flexibility and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ore mining, in particular to a telescopic underground fence. Background Art

[0002] In the process of ore mining, it is necessary to excavate mining chambers. In order to improve the safety of mining, fences are set up in some chambers to prevent people from entering by mistake. During the use of this fence, the chamber can only be opened by rotating to allow people and vehicles to enter. The rotation radius is large and requires a large space.

[0003] The prior art installs a liftable fence at the entrance of a cavern. For example, patent application number CN202220216052.2 discloses a liftable fence for use in underground coal mines. This patent adopts a liftable structure, and the opening and closing of the fence is not affected by the flatness of the bottom plate and is not limited by the bottom plate conditions, which is suitable for use in underground coal mines; the lower structure of the anti-sway device adopts a rotating shaft structure, which does not affect the passage of equipment when the equipment enters and exits the cavern. Mutually cooperating positioning holes are provided on the sleeve I and the L-shaped rod II, which can be used to lock the fence door; this application adopts a set of drive devices to simultaneously drive the wire ropes of two pulleys, which has a more compact structure and is easy to control.

[0004] The lifting fence in the prior art is not practical in actual use. First, the height of the mine is limited. Second, vehicles enter and exit the mine chamber, and the bucket and other parts of the vehicle may come into contact with the fence. Utility Model Content

[0005] The technical problem to be solved by the present utility model is to provide a telescopic underground fence to solve the problem that the lifting fence of the mine chamber in the prior art described in the background art is not practical.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: a telescopic underground fence, comprising

[0007] a first bottom plate and a second bottom plate, wherein the first bottom plate is fixed to the ground;

[0008] A first column rotatably connected to the first base plate;

[0009] A second column is fixedly connected to the second base plate;

[0010] Two telescopic tubes are parallel to each other, and both ends are fixedly connected to the first column and the second column respectively, and the telescopic tubes have multiple sections;

[0011] The telescopic tube includes

[0012] A first end joint tube is fixedly connected to the first column, the first end joint tube has a first opening, and a plurality of first blocking rods are fixedly connected to the first end joint tube;

[0013] The second end joint tube is fixedly connected to the second column.

[0014] There are several third gear levers;

[0015] An intermediate joint tube has a second opening, and a plurality of second shift rods are fixedly connected to the intermediate joint tube;

[0016] The second gear lever and the third gear lever pass through the first opening and the second opening respectively.

[0017] Preferably, a positioning column is fixedly connected to the bottom of the first base plate.

[0018] Preferably, the bottoms of the first end section tube and the middle section tube in the telescopic tube at the lower end are respectively detachably fixedly connected with universal wheels.

[0019] Preferably, the bottom of the second base plate is also detachably provided with universal wheels.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] In the present application, the first column can rotate on the first base plate, and the telescopic tube can be extended and retracted, which can change the length of the entire fence, making it convenient to adapt to chambers of different sizes. At the same time, the telescopic method also makes it easier to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a main view of a telescopic underground fence of the utility model.

[0023] Figure 2 It is a schematic diagram of a telescopic underground fence of the utility model.

[0024] Figure 3 It is a top view of the telescopic tube of the utility model.

[0025] Figure 4 It is a top view of the telescopic tube of the utility model after contraction.

[0026] Among them: first base plate 10, positioning column 11, first column 20, second column 30, second base plate 31, first end joint tube 40, first opening 41, first gear rod 42, middle joint tube 50, second opening 51, second gear rod 52, second end joint tube 60, third gear rod 61, universal wheel 70. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 In the first embodiment, a telescopic underground fence includes

[0029] A first bottom plate 10 and a second bottom plate 31, wherein the first bottom plate 10 is fixed to the ground;

[0030] The first column 20 is rotatably connected to the first base plate 10;

[0031] The second column 30 is fixedly connected to the second base plate 31;

[0032] Two telescopic tubes 40 are parallel to each other, and both ends are fixedly connected to the first column 20 and the second column 30 respectively. The telescopic tubes 40 have multiple sections;

[0033] The telescopic tube 40 includes

[0034] A first end joint tube 40 is fixedly connected to the first column 20 , and has a first opening 41 . A plurality of first blocking rods 42 are fixedly connected to the first end joint tube 40 ;

[0035] The second end joint tube 60 is fixedly connected to the second column 30.

[0036] A plurality of third gear rods 61 are fixedly connected;

[0037] The middle tube 50 has a second opening 51 and is fixedly connected to a plurality of second levers 52;

[0038] The second shift rod 52 and the third shift rod 61 pass through the first opening and the second opening respectively.

[0039] This embodiment is implemented as follows:

[0040] When the present application is in use, the first base plate 10 is first fixed to the ground, and then the second column 30 is moved so that the telescopic tube can be extended and retracted. In the present application, during the extension and retraction process of the telescopic tube, the second gear rod 52 will enter and exit the second opening 51 (when the number of intermediate section tubes 50 is greater than two) and the first opening 41, and the third gear rod 61 will enter and exit the first opening 41 and the second opening 51 to achieve extension and retraction.

[0041] See also Figure 1 、 4 , a positioning column 11 is fixedly connected to the bottom of the first base plate 10;

[0042] The present application enables the positioning posts 11 on the first base plate 10 to be inserted into the ground and fixed.

[0043] See also Figure 4The bottoms of the first end section tube 40 and the middle section tube 50 in the lower end of the telescopic tube are respectively detachably fixedly connected with a universal wheel 70. It should be noted that the universal wheel 70 in the present application is connected to the telescopic tube by a screw;

[0044] The provision of the universal wheel 70 makes it more convenient for workers to move the second column 30 and facilitate its retraction.

[0045] See also Figure 4 The bottom of the second bottom plate 31 is also detachably provided with a universal wheel 70;

[0046] Universal wheels 70 are provided on the second bottom plate 31 to facilitate movement.

[0047] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A telescopic underground fence, characterized in that: include a first bottom plate and a second bottom plate, wherein the first bottom plate is fixed to the ground; A first column rotatably connected to the first base plate; A second column is fixedly connected to the second base plate; Two telescopic tubes are parallel to each other, and both ends are fixedly connected to the first column and the second column respectively, and the telescopic tubes have multiple sections; The telescopic tube includes A first end joint tube is fixedly connected to the first column, the first end joint tube has a first opening, and a plurality of first blocking rods are fixedly connected to the first end joint tube; The second end joint tube is fixedly connected to the second column. There are several third gear levers; An intermediate joint tube has a second opening, and a plurality of second shift rods are fixedly connected to the intermediate joint tube; The second gear lever and the third gear lever pass through the first opening and the second opening respectively.

2. The telescopic underground fence according to claim 1, characterized in that: The bottom of the first base plate is fixedly connected with a positioning column.

3. The telescopic underground fence according to claim 1, characterized in that: The bottoms of the first end section tube and the middle section tube in the telescopic tube at the lower end are respectively detachably fixedly connected with universal wheels.

4. The telescopic underground fence according to claim 3, characterized in that: The bottom of the second base plate is also detachably provided with universal wheels.

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