Column shoe with conical bottom
By installing a tapered base on the support plate base of the column shoes and using the matching of the limiting parts and grooves, the stability of the existing column shoes under the conditions of inclination or floating coal is solved, and the stability of the existing column shoes under different ground conditions is achieved. Stable support has reduced the labor force of workers.
Patent Information
- Application Number
- CN202420732354.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-10
AI Technical Summary
Existing column shoes are difficult to support stably at the inclination angle or high floating coal, and are prone to slip sideways or fall-off, which increases the workload of workers and requires manual excavation of column holes to adjust the support, resulting in unstable support.
A tapered base shoe is designed to ensure the stability and fixity of the tapered base by installing a tapered base on the base of the support disk and using the matching of the limiting parts and the grooves, which increases the stability and firmness of the tapered base. The grip ability of the surface prevents side slip and rotation.
It improves the stability and adaptability of column shoes, is suitable for different ground conditions, reduces the labor force of workers, and ensures the stability and support effect of the support column.
Smart Images
Figure CN222141274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mineral mining, in particular to a column shoe with a conical bottom. Background Art
[0002] Column shoes are a type of support shoe suitable for coal mines and other mines, tunnels and other working surfaces. The mining column shoes are disc-shaped, with a concave spherical center surface and a column guard surface surrounded by annular inclined surfaces. An annular inner ring platform is provided on the column guard surface, and radial upper and lower reinforcing ribs are provided between the inner and outer ring platforms, with grooves between the reinforcing ribs.
[0003] In the prior art, the Chinese utility model with publication number: CN205858385U discloses a single hydraulic prop column shoe, including a support plate, a concave structure is formed in the middle of the lower end surface of the support plate, a column barrel is arranged in the middle of the upper end surface of the support plate, and a column socket for placing the hydraulic prop is formed in the middle of the column barrel; a reinforcing rib is arranged on the support plate, and there are several reinforcing ribs, one of which is provided with a recovery hole. The ends of each reinforcing rib are connected to the side of the column barrel; the support plate is also provided with a plurality of mounting holes, and a plurality of shoe spikes are inserted into the mounting holes. In the above-mentioned single hydraulic prop column shoe, a concave structure is arranged on the support plate, and when the column shoe is subjected to excessive force, the support plate can deform to buffer the pressure, the depth of the concave structure becomes smaller, and the contact surface between the support plate and the coal seam is continuously increased, thereby reducing the bottom drilling amount of the hydraulic prop column shoe. The support plate is also provided with a mounting hole, and when removing the hydraulic prop column shoe, the staff can blow air to the lower part of the support plate through the mounting hole, thereby reducing the difficulty of removing the hydraulic prop column shoe.
[0004] The above technical solution is a traditional type of column shoe shape, and the middle part of the lower end surface of the support plate is concave, relying on the bottom of the support plate as the contact surface to prevent the column shoe from sliding sideways. In coal mines or mining construction operations, when the bottom plate is soft, it is necessary to prevent single pillars or columns from piercing the bottom. The existing column shoes need to be manually dug when there is an inclination or there is a lot of floating coal. Otherwise, the bracket column shoe is not placed stably and is easy to fall over, which has poor adaptability to the environment and increases the workload of workers. Utility Model Content
[0005] The purpose of the utility model is to provide a column shoe with a conical bottom. By arranging a conical base at the bottom of the column shoe, the conical base can be conveniently used to insert it into an inclined ore body and a supporting surface with a lot of floating coal, so as to more stably support and limit the support column, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a column shoe with a conical bottom, comprising a support plate base, a reinforcement platform integrally formed on the top of the support plate base, an embedding groove is provided on the top of the reinforcement platform, a conical base is detachably installed on the bottom of the support plate base, reinforcing ribs are fixed on the surface of the reinforcement platform all around, a through hole is provided on the surface of the reinforcing rib for a falling chain to pass through, a protective ring is fixed on the top of the support plate base, the protective ring is located on the outside of the reinforcing rib, a groove is provided on the surface of the protective ring, and the groove is arranged in alignment with the through hole.
[0007] Preferably, a limiting member is fixed on the top of the conical base, a limiting groove is provided on the bottom of the support plate base, and the limiting member is located in the inner cavity of the limiting groove.
[0008] Preferably, a countersunk hole is provided at the bottom of the inner cavity of the embedding groove, a mounting bolt is provided in the inner cavity of the countersunk hole, a threaded hole is provided at the top of the conical base, and the bottom end of the mounting bolt passes through the support plate base and extends to the inner cavity of the threaded hole and is threadedly connected to the threaded hole.
[0009] Preferably, the bottom of the support plate base is provided with anti-skid patterns, and the anti-skid patterns are ring-shaped and located on the outer side of the conical base.
[0010] Preferably, the conical base comprises a columnar connecting section and a conical extrusion section, the upper end of the conical extrusion section is connected to the columnar connecting section in an arc shape, and the diameter of the middle section of the conical extrusion section is larger than the diameter of the columnar connecting section.
[0011] Preferably, the conical base is in the shape of a pyramid as a whole, and inwardly recessed guide grooves are provided on the four side surfaces of the conical base.
[0012] Preferably, a plurality of groups of tooth-shaped grooves are provided around the conical base, and the tooth-shaped grooves are inclined downward and extend into the interior of the conical base.
[0013] Preferably, the conical base is in a cone shape as a whole, and a thread groove extending downward is provided on the outer side of the conical base.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model installs a conical base at the bottom of the support plate base, and uses different shapes of the conical base to insert into the supporting ground, thereby improving the stability of the column shoe and preventing the column shoe from sliding sideways and causing the upper pillar to tip over. At the same time, conical bases of different shapes are suitable for use on different supporting grounds, including soft grounds, firm grounds, and grounds that are difficult to insert into, and are suitable for supporting support columns in various mining environments.
[0016] 2. The utility model facilitates to stably restrict the conical base to the bottom of the support plate base through the cooperation of the limiting piece and the limiting groove, thereby preventing the support plate base from rotating and causing the conical base to loosen, so that the conical base and the support plate base remain stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0018] Figure 2 This is a bottom-up three-dimensional structural diagram of the support plate base of the utility model;
[0019] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of Example 1 of the utility model;
[0020] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of Example 2 of the utility model;
[0021] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of Example 3 of the utility model.
[0022] Numbers in the figure: 1. Support plate base; 2. Reinforcement platform; 3. Inlay groove; 4. Conical base; 5. Reinforcement rib; 6. Through hole; 7. Protective ring; 8. Limiting piece; 9. Limiting groove; 10. Countersunk hole; 11. Mounting bolt; 12. Threaded hole; 13. Anti-slip pattern; 14. Columnar connecting section; 15. Conical extrusion section; 16. Guide groove; 17. Toothed groove; 18. Threaded groove. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example 1
[0025] The utility model provides Figures 1 to 3A column shoe with a conical bottom is shown, comprising a support plate base 1, a reinforcement platform 2 is integrally formed on the top of the support plate base 1, an inlay groove 3 is provided on the top of the reinforcement platform 2, a conical base 4 is detachably installed on the bottom of the support plate base 1, the conical base 4 comprises a columnar connecting section 14 and a conical extrusion section 15, the upper end of the conical extrusion section 15 is connected to the columnar connecting section 14 in an arc shape, the diameter of the middle section of the conical extrusion section 15 is larger than the diameter of the columnar connecting section 14, reinforcing ribs 5 are fixed around the surface of the reinforcement platform 2, a through hole 6 for a falling chain to pass through is provided on the surface of the reinforcing rib 5, a protective ring 7 is fixed on the top of the support plate base 1, the protective ring 7 is located on the outside of the reinforcing rib 5, a groove is provided on the surface of the protective ring 7, and the groove is arranged in alignment with the through hole 6;
[0026] The conical extrusion section 15 is connected to the support plate base 1 through the columnar connecting section 14. At the same time, the shape of the conical extrusion section 15 is limited, so that when the conical base 4 is inserted into the soft ground, the volume of the conical base 4 is used to squeeze the surrounding ground, so that the surrounding ground is squeezed and becomes hard, which is convenient for fixing the conical base 4.
[0027] A limiting piece 8 is fixed on the top of the conical base 4, and a limiting groove 9 is provided at the bottom of the support plate base 1. The limiting piece 8 is located in the inner cavity of the limiting groove 9. Through the cooperation between the limiting piece 8 and the limiting groove 9, the conical base 4 can be stably limited to the bottom of the support plate base 1 to prevent the support plate base 1 from rotating and causing the conical base 4 to loosen, so that the conical base 4 and the support plate base 1 remain stable.
[0028] A countersunk hole 10 is provided at the bottom of the inner cavity of the embedding groove 3, and a mounting bolt 11 is provided in the inner cavity of the countersunk hole 10. A threaded hole 12 is provided at the top of the conical base 4. The bottom end of the mounting bolt 11 passes through the support plate base 1 and extends to the inner cavity of the threaded hole 12 and is threadedly connected with the threaded hole 12. Through the cooperation between the mounting bolt 11 and the threaded hole 12, the support plate base 1 and the conical base 4 can be stably connected by using the mounting bolt 11.
[0029] The bottom of the support plate base 1 is provided with anti-skid patterns 13, which are ring-shaped and located on the outside of the conical base 4. The anti-skid patterns 13 are provided to increase the friction between the support plate base 1 and the ground to prevent the support plate from sliding sideways and increase the stability of the column shoe.
[0030] Example 2
[0031] like Figure 4As shown, a column shoe with a conical bottom includes a support plate base 1, a reinforcement platform 2 is integrally formed on the top of the support plate base 1, an inlay groove 3 is provided on the top of the reinforcement platform 2, a conical base 4 is detachably mounted on the bottom of the support plate base 1, the conical base 4 is in the shape of a pyramid as a whole, and inwardly recessed guide grooves 16 are provided on the four sides of the conical base 4, reinforcing ribs 5 are fixed on the four sides of the surface of the reinforcement platform 2, and a through hole 6 for a falling chain to pass through is provided on the surface of the reinforcing rib 5, and a protective ring 7 is fixed on the top of the support plate base 1, the protective ring 7 is located on the outside of the reinforcing rib 5, and a groove is provided on the surface of the protective ring 7, and the groove is arranged in alignment with the through hole 6;
[0032] The piercing ability of the conical base 4 is increased by the pyramid-shaped conical base 4. At the same time, the four sides of the conical base 4 are concave inwards, which reduces the squeezing of the surrounding soil when inserted into the hard ground. The conical base 4 can be better inserted into the ground and the support column is supported by the support plate base 1.
[0033] A plurality of groups of toothed grooves 17 are provided around the conical base 4, and the toothed grooves 17 are inclined downward and extend into the conical base 4. The arrangement of the toothed grooves 17 can increase the grip of the conical base 4 on the soil, making the conical base 4 more stable.
[0034] Example 3
[0035] like Figure 5 As shown, a column shoe with a conical bottom includes a support plate base 1, a reinforcement platform 2 is integrally formed on the top of the support plate base 1, an inlay groove 3 is provided on the top of the reinforcement platform 2, a conical base 4 is detachably mounted on the bottom of the support plate base 1, the conical base 4 is cone-shaped as a whole, a downwardly extending threaded groove 18 is provided on the outer side of the conical base 4, reinforcing ribs 5 are fixed around the surface of the reinforcement platform 2, a through hole 6 for a falling chain to pass through is provided on the surface of the reinforcing rib 5, a protective ring 7 is fixed on the top of the support plate base 1, the protective ring 7 is located on the outer side of the reinforcing rib 5, a groove is provided on the surface of the protective ring 7, and the groove is arranged in alignment with the through hole 6;
[0036] By setting the thread groove 18, the conical base 4 can be conically shaped, so that the conical base 4 can be inserted into the ground by rotation, and the stability of the support plate base 1 can be ensured at the same time.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A column shoe with a conical bottom, Features: The invention comprises a support plate base (1), the top of the support plate base (1) is integrally formed with a reinforcement platform (2), the top of the reinforcement platform (2) is provided with an embedding groove (3), the bottom of the support plate base (1) is detachably provided with a conical base (4), the surface of the reinforcement platform (2) is fixed with reinforcing ribs (5) all around, the surface of the reinforcing rib (5) is provided with a through hole (6) for a falling chain to pass through, the top of the support plate base (1) is fixed with a protective ring (7), the protective ring (7) is located on the outside of the reinforcing rib (5), the surface of the protective ring (7) is provided with a groove, and the groove is arranged in alignment with the through hole (6).
2. A column shoe with a conical bottom according to claim 1, Features: A limiting member (8) is fixed on the top of the conical base (4), a limiting groove (9) is provided on the bottom of the support plate base (1), and the limiting member (8) is located in the inner cavity of the limiting groove (9).
3. A column shoe with a conical bottom according to claim 1, Features: A countersunk hole (10) is provided at the bottom of the inner cavity of the embedding groove (3), and a mounting bolt (11) is provided in the inner cavity of the countersunk hole (10). A threaded hole (12) is provided at the top of the conical base (4), and the bottom end of the mounting bolt (11) passes through the support plate base (1) and extends to the inner cavity of the threaded hole (12) and is threadedly connected to the threaded hole (12).
4. A column shoe with a conical bottom according to claim 1, Features: The bottom of the support plate base (1) is provided with an anti-skid pattern (13), and the anti-skid pattern (13) is annular and located on the outside of the conical base (4).
5. A column shoe with a conical bottom according to claim 1, Features: The conical base (4) comprises a columnar connecting section (14) and a conical extrusion section (15); the upper end of the conical extrusion section (15) is connected to the columnar connecting section (14) in an arc shape; and the diameter of the middle section of the conical extrusion section (15) is greater than the diameter of the columnar connecting section (14).
6. A column shoe with a conical bottom according to claim 1, Features: The conical base (4) is in the shape of a pyramid as a whole, and the four side surfaces of the conical base (4) are provided with inwardly recessed guide grooves (16).
7. A column shoe with a conical bottom according to claim 1, Features: A plurality of groups of tooth-shaped grooves (17) are arranged around the conical base (4), and the tooth-shaped grooves (17) are inclined downward and extend into the interior of the conical base (4).
8. A column shoe with a conical bottom according to claim 1, Features: The conical base (4) is in the shape of a cone as a whole, and a thread groove (18) extending downward is provided on the outer side of the conical base (4).