Support leg

Abstract

The utility model relates to the field of coal mine equipment, in particular to a support leg which comprises a supporting block, a guide rod, a hydraulic column and a bottom plate, a first containing groove is formed in the bottom end of the supporting block, the guide rod is slidably connected with the supporting block through the first containing groove, and the bottom plate is horizontally and fixedly installed at the bottom end of the guide rod; a second containing groove is formed in the top end of the guide rod, one end of the hydraulic column is fixedly connected with the groove bottom of the first containing groove, the other end of the hydraulic column is fixedly connected with the groove bottom of the second containing groove, a plurality of inserting grooves are vertically formed in the guide rod at equal intervals, a connecting hole is formed in the side wall of the supporting block, and a connecting rod is slidably installed in the connecting hole. And one end, close to the guide rod, of the connecting rod is inserted into the slot. The support structure has the effect of improving the stability of the support structure.

Description

Technical Field

[0001] This application relates to the field of coal mining equipment, and in particular to a support leg. Background Technology

[0002] During the manual excavation process in coal mines, tunnels need to be constructed to provide a working environment for workers. To protect the safety of workers during the construction process, scaffolding structures are typically erected.

[0003] The current support structure includes a top beam, support blocks, and hydraulic columns. Support blocks are fixedly installed on both sides of the bottom end of the top beam, and hydraulic columns are fixedly installed on the bottom end of the support blocks. The hydraulic columns can drive the support blocks to rise and fall, thereby driving the top beam to rise and fall, in order to adapt to different heights. However, because the support area between the hydraulic columns and the ground is small, the support structure sometimes sways, resulting in poor stability of the support structure. Utility Model Content

[0004] To improve the stability of the support structure, this application provides a support leg.

[0005] The support leg provided in this application adopts the following technical solution:

[0006] A support leg includes a support block, a guide rod, a hydraulic column, and a base plate. The support block has a first receiving groove at its bottom end. The guide rod is slidably connected to the support block through the first receiving groove. The base plate is horizontally fixedly installed at the bottom end of the guide rod. The guide rod has a second receiving groove at its top end. One end of the hydraulic column is fixedly connected to the bottom of the first receiving groove, and the other end is fixedly connected to the bottom of the second receiving groove. The guide rod has multiple slots vertically spaced at equal intervals. The support block has a connecting hole on its side wall. A connecting rod is slidably installed in the connecting hole, and the end of the connecting rod near the guide rod is inserted into the slot.

[0007] Optionally, a connecting groove is provided on the outer wall of the support block, the connecting hole is opened at the bottom of the connecting groove, a pull plate is installed at the opening of the connecting groove, the pull plate is fixedly connected to the connecting rod, and a handle is installed at the end of the pull plate opposite to the connecting rod.

[0008] Optionally, a return spring is ringed on the outer wall of the connecting rod. The return spring is located in the connecting groove, with one end fixedly connected to the bottom of the connecting groove and the other end fixedly connected to the pull plate.

[0009] Optionally, the base plate has a cavity inside, an auxiliary hole communicating with the cavity is opened at the bottom end of the base plate, a threaded hole communicating with the cavity is opened at the top end of the base plate, a support plate is horizontally placed inside the cavity, a plug rod is fixedly installed at the bottom end of the support plate, the end of the plug rod away from the support plate passes through the auxiliary hole and is located outside the base plate, and a threaded rod is rotatably installed at the top end of the support plate, and the threaded rod is threadedly connected to the base plate through a threaded hole.

[0010] Optionally, a connecting block is fixedly installed at the top of the base plate, and a T-shaped circular groove is opened at the top of the connecting block. A T-shaped circular block is fixedly installed at the bottom of the threaded rod, and the T-shaped circular block is rotatably connected to the support plate through the T-shaped circular groove.

[0011] Optionally, the insertion rod is in the shape of an inverted cone.

[0012] Optionally, multiple insertion rods are provided.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. By setting guide rods and base plates, the contact area with the ground can be increased, thereby enhancing the stability of the support structure.

[0015] 2. The connection between the support block and the guide rod can be strengthened by the connecting rod.

[0016] 3. By setting up the insertion rods, the stability of the base plate and the ground can be enhanced, thereby strengthening the stability of the support structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a support leg according to an embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of a support block for a bracket leg according to an embodiment of this application.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a cross-sectional view of the base plate of a support leg according to an embodiment of this application.

[0021] Figure 5 yes Figure 4 Enlarged view of section B in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Support block; 11. First receiving groove; 12. Connecting hole; 13. Connecting groove; 14. Connecting rod; 15. Pull plate; 16. Handle; 17. Return spring; 2. Guide rod; 21. Second receiving groove; 22. Slot; 3. Hydraulic column; 4. Base plate; 41. Auxiliary hole; 42. Threaded hole; 5. Support plate; 51. Insert rod; 52. Connecting block; 521. T-shaped circular groove; 53. T-shaped circular block; 54. Threaded rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a support leg.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A support leg includes a support block 1, a guide rod 2, a hydraulic column 3, and a base plate 4. The support block 1 has a first receiving groove 11 at its bottom end, through which the guide rod 2 is slidably connected to the support block 1. The base plate 4 is horizontally fixedly installed at the bottom end of the guide rod 2. The guide rod 2 has a second receiving groove 21 at its top end. One end of the hydraulic column 3 is fixedly connected to the bottom of the first receiving groove 11, and the other end is fixedly connected to the bottom of the second receiving groove 21. Multiple slots 22 are vertically and equidistantly formed on the guide rod 2. A connecting hole 12 is formed on the side wall of the support block 1, and a connecting rod 14 is slidably installed within the connecting hole 12, with one end of the connecting rod 14 near the guide rod 2 inserted into the slot 22. It should be noted that the guide rod 2 and the base plate 4 increase the contact area with the ground, thereby enhancing the stability of the hydraulic column 3. The connecting rod 14 strengthens the connection between the support block 1 and the guide rod 2.

[0026] When the hydraulic column 3 is damaged, the connecting rod 14 can support the support block 1. When the connecting rod 14 is damaged again, the support block 1 moves down, causing the top of the guide rod 2 to abut against the bottom of the first receiving groove 11, thereby supporting the support block 1 and giving the support leg triple protection.

[0027] To facilitate the movement of the connecting rod 14, a connecting groove 13 is provided on the outer wall of the support block 1. A connecting hole 12 is formed at the bottom of the connecting groove 13. A pull plate 15 is installed at the opening of the connecting groove 13, and the pull plate 15 is fixedly connected to the connecting rod 14. A handle 16 is installed at the end of the pull plate 15 facing away from the connecting rod 14. The operator can pull the pull plate 15 through the handle 16, thereby causing the connecting rod 14 to slide within the connecting hole 12.

[0028] A return spring 17 is ringed on the outer wall of the connecting rod 14. The return spring 17 is located inside the connecting groove 13. One end of the return spring 17 is fixedly connected to the bottom of the connecting groove 13, and the other end is fixedly connected to the pull plate 15. When the worker moves the connecting rod 14 towards the outside of the support block 1 and releases the handle 16, the return spring 17 returns to its original position, causing the connecting rod 14 to move towards the inside of the support block 1, thus achieving a labor-saving effect.

[0029] The base plate 4 has two cavities inside, located on either side of the guide rod 2. Multiple auxiliary holes 41 are equidistantly distributed at the bottom of the base plate 4. A threaded hole 42 is located at the top of the base plate 4, with each threaded hole corresponding to one cavity. A support plate 5 is horizontally placed within each cavity. Multiple insertion rods 51 are fixedly installed at the bottom of the support plate 5. The end of each insertion rod 51 facing away from the support plate 5 passes through the corresponding auxiliary hole 41 and is located outside the base plate 4. A connecting block 52 is fixedly installed at the top of the base plate 4. A T-shaped groove 521 is formed at the top of the connecting block 52. A T-shaped block 53 is rotatably installed within the T-shaped groove 521. A threaded rod 54 is fixedly installed at the top of the T-shaped block 53, and the threaded rod 54 is threadedly connected to the base plate 4 through the threaded hole 42. It should be noted that the insertion rod 51 is inverted conical in shape.

[0030] Workers rotate the threaded rod 54, which in turn causes the support plate 5 to rise or fall, and in turn causes the insertion rod 51 to rise or fall. When the insertion rod 51 falls, it can be inserted into the ground, further enhancing the stability of the support structure.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stent leg, characterized by: Including support block (1), guide rod (2), hydraulic column (3) and bottom plate (4), the first containing groove (11) is set in the bottom end of support block (1), the guide rod (2) is slidably connected with support block (1) through the first containing groove (11), the bottom plate (4) is horizontally fixedly installed at the bottom end of guide rod (2), the second containing groove (21) is set in the top end of guide rod (2), one end of hydraulic column (3) is fixedly connected with the groove bottom of first containing groove (11), the other end is fixedly connected with the groove bottom of second containing groove (21), a plurality of insertion grooves (22) are vertically and equidistantly set on guide rod (2), a connecting hole (12) is set on the side wall of support block (1), a connecting rod (14) is slidably installed in the connecting hole (12), one end of connecting rod (14) is inserted into insertion groove (22) close to guide rod (2).

2. The stent leg of claim 1, wherein: The connecting groove (13) is set on the outer wall of support block (1), the connecting hole (12) is set in the groove bottom of connecting groove (13), the pull plate (15) is installed at the slot opening of connecting groove (13), the pull plate (15) is fixedly connected with connecting rod (14), the pull plate (15) is provided with a handle (16) at the end away from connecting rod (14).

3. The stent leg of claim 2, wherein: The outer wall of connecting rod (14) is sleeved with a reset spring (17), the reset spring (17) is located in connecting groove (13), one end of reset spring (17) is fixedly connected with the groove bottom of connecting groove (13), the other end is fixedly connected with pull plate (15).

4. The stent leg of claim 1, wherein: The bottom plate (4) is internally provided with a cavity, the bottom plate (4) is provided with an auxiliary hole (41) at the bottom end, which is in communication with the cavity, the bottom plate (4) is provided with a threaded hole (42) at the top end, which is in communication with the cavity, the support plate (5) is horizontally placed in the cavity, the plug rod (51) is fixedly installed at the bottom end of support plate (5), one end of plug rod (51) away from support plate (5) passes through auxiliary hole (41) and is located outside bottom plate (4), the threaded rod (54) is rotatably installed at the top end of support plate (5), the threaded rod (54) is threadedly connected with bottom plate (4) through threaded hole (42).

5. The stent leg of claim 4, wherein: The connecting block (52) is fixedly installed at the top end of bottom plate (4), the T-shaped circular groove (521) is set at the top end of connecting block (52), the T-shaped circular block (53) is fixedly installed at the bottom end of threaded rod (54), the T-shaped circular block (53) is rotatably connected with support plate (5) through T-shaped circular groove (521).

6. The stent leg of claim 4, wherein: The plug rod (51) is inverted conical.

7. The stent leg of claim 4, wherein: The plug rod (51) is provided with a plurality of.

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