Mine surveying instrument receiving device

Abstract

The utility model provides a kind of mine surveying and mapping instrument receiving equipment, including connecting disc, ball seat is installed on the upper surface of connecting disc, threaded head one end is installed with spherical body, shielding cylinder one end is connected with ball seat, circular nut is installed in the side close to perforation in shielding cylinder, circular nut is connected with the positioning screw for limiting the relative position of spherical body and ball seat in thread, positioning screw one end penetrates perforation and is contacted with spherical body, the end of positioning screw away from perforation extends to the outside of shielding cylinder, the side of circular nut away from perforation is equipped with baffle disc, baffle disc is slidably installed in shielding cylinder, baffle disc is sleeved on positioning screw and is connected and fixed with positioning screw, the utility model has the beneficial effects as follows: by shielding cylinder, baffle disc constructs closed protection system, solves the problem that positioning screw is jammed by mine sundries.

Description

Technical Field

[0001] This utility model is a mining surveying instrument contracting equipment, belonging to the surveying field. Background Technology

[0002] In mine surveying operations, the tripod is the core facility supporting the surveying instrument. The "threaded head-sphere-spherical seat" adjustment structure at the top is crucial for ensuring the instrument's positioning: After the threaded head is connected to the surveying instrument, the operator can rotate the threaded head to make the sphere rotate flexibly within the spherical seat, thereby adjusting the instrument's horizontal angle and tilt until the surveying accuracy requirements are met; after the position is calibrated, the positioning screw needs to be tightened, and the end of the screw squeezes the sphere to limit its displacement within the spherical seat, ensuring that the instrument remains stable during the surveying process and avoiding positional deviations caused by ground vibrations in the mine.

[0003] The unique environment of mining operations significantly interferes with the operation of positioning screws: Dust, rock fragments, and other fine debris often float in the air underground or in open-pit mines, and ore dust easily accumulates on the ground. When operators tighten the positioning screws, surrounding dust and rock fragments are easily drawn into the threaded grooves. Simultaneously, during the tightening process, the friction between the threaded surface and the hole wall may scrape against debris adhering to the hole opening, causing it to embed into the thread gaps. This debris fills the mating space between the threads, disrupting the smooth engagement. At best, this causes the positioning screw to jam and make abnormal noises, affecting adjustment efficiency; at worst, it can jam the threaded grooves, making it impossible to tighten or loosen smoothly. This not only makes it difficult to fix the sphere's position but may also cause thread stripping and screw damage due to forced tightening, thus affecting the adjustment accuracy of surveying instruments and even delaying the progress of mine surveying operations. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mining surveying instrument receiving device to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a mining surveying instrument receiving device, comprising: A connecting plate has a ball seat mounted on its upper surface, and the outer surface of the ball seat has a through hole communicating with the internal space of the ball seat; A threaded head, with a sphere mounted on one end, the sphere being slidably mounted inside a ball seat; A shielding cylinder is arranged concentrically with the perforation. One end of the shielding cylinder is connected to the ball seat. A circular nut is installed inside the shielding cylinder near the perforation. A positioning screw for limiting the relative position of the sphere and the ball seat is internally threaded into the circular nut. One end of the positioning screw passes through the perforation and contacts the sphere. The other end of the positioning screw extends to the outside of the shielding cylinder. A baffle is provided on the side of the circular nut away from the perforation. The baffle is slidably installed inside the shielding cylinder and is sleeved on the positioning screw and connected and fixed to the positioning screw.

[0006] Furthermore, two lugs are installed at one end of the shielding cylinder near the ball seat, and the lugs are connected to the ball seat by connecting screws.

[0007] Furthermore, a protrusion is provided between the lug and the ball seat, the protrusion is connected and fixed to the ball seat, and the connecting screw passes through the lug and is threadedly connected to the protrusion.

[0008] Furthermore, a limiting cover is threaded to the end of the shielding cylinder away from the ball seat. The limiting cover has a circular opening on one side, the inner diameter of which is smaller than the inner diameter of the shielding cylinder. The limiting cover also has multiple arc-shaped openings equidistantly arranged around the circular opening on one side.

[0009] Furthermore, the outer surface of the ball seat has a notch for storing the threaded head, the notch is connected to the internal space of the ball seat, and the threaded head is threaded with a pressure cap for fitting against the bottom of the mining surveying instrument.

[0010] Furthermore, the lower surface of the connecting plate is recessed upward to form a circular groove, and three outer tubes arranged in a ring at equal intervals are rotatably installed in the circular groove via a rotating shaft. The inner tubes are threadedly connected to the outer tubes, and a wear-resistant sleeve is fitted on the end of the inner tube outside the outer tubes.

[0011] Furthermore, the outer tube is provided with a screw arranged concentrically with the outer tube, and a positioning plate is installed at one end of the screw near the connecting plate. The positioning plate is installed inside the outer tube, and a disc is installed on the side of the inner tube away from the wear-resistant sleeve. A threaded hole is opened in the middle of one side of the disc, and the screw is threaded into the threaded hole.

[0012] Furthermore, a connector is installed inside the outer tube on the side near the connecting seat, and the end of the connector located outside the outer tube is rotatably installed in the circular groove via a rotating shaft.

[0013] The beneficial effects of this utility model are: The shielding cylinder and the ball seat perforation are arranged concentrically to completely enclose the positioning screw and the round nut, isolating external dust and rock chips. The baffle slides synchronously with the positioning screw and is always on the side of the round nut away from the perforation, sealing the gap between the threaded connection area and the inside of the shielding cylinder, preventing debris from seeping into the threaded grooves from the inside of the shielding cylinder. The shielding cylinder and baffle form a closed protection system to solve the problem of debris jamming the positioning screw in the mine. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a mining surveying instrument receiving device according to the present invention; Figure 2 This is a perspective view of a mining surveying instrument receiving device according to this utility model. Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is an exploded structural diagram of a mining surveying instrument receiving device according to the present invention; Figure 5 This is an exploded structural diagram of a mining surveying instrument receiving device according to this utility model from another perspective. In the picture: 1. Connecting plate; 11. Ball seat; 12. Notch; 13. Protrusion; 14. Perforation; 2. Threaded head; 21. Pressure cap; 22. Sphere; 3. Baffle cylinder; 31. Limiting cover; 32. Positioning screw; 33. Arc-shaped opening; 34. Support lug; 35. Baffle plate; 36. Round nut; 4. Outer tube; 41. Inner tube; 42. Wear-resistant sleeve; 43. Disc; 44. Screw; 45. Connector; 46. Positioning plate; 5. Connecting screws. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1-5This utility model provides a technical solution: a receiving device for mining surveying instruments, including a connecting plate 1, a ball seat 11 mounted on the upper surface of the connecting plate 1, and a sphere 22 mounted on one end of a threaded head 2, the sphere 22 being slidably mounted inside the ball seat 11; a notch 12 for storing the threaded head 2 is provided on the outer surface of the ball seat 11, the notch 12 communicating with the internal space of the ball seat 11, and a pressure cap 21 for fitting against the bottom of the mining surveying instrument is threaded onto the threaded head 2. The pressure cap 21 on the threaded head 2 can fit against the bottom of the surveying instrument, and the connection between the instrument and the threaded head 2 is further fixed by tightening the threads, preventing the instrument from loosening during adjustment or surveying; the cooperation between the pressure cap 21 and the threaded head 2 compensates for the gaps that may exist in a simple threaded connection, making the instrument and the receiving device form a stable whole, reducing the impact of vibration on the instrument, and providing reliable support for surveying.

[0017] The outer surface of the ball seat 11 has a through hole 14 communicating with the internal space of the ball seat 11. The shielding cylinder 3 is arranged concentrically with the through hole 14. Two lugs 34 are installed at one end of the shielding cylinder 3 near the ball seat 11. A protrusion 13 is provided between the lugs 34 and the ball seat 11. The protrusion 13 is connected and fixed to the ball seat 11, so that the connecting screw 5 passes through the lugs 34 and is threadedly connected to the protrusion 13, thus completing the connection between one end of the shielding cylinder 3 and the ball seat 11. The protrusion 13 can locally increase the thickness of the part of the ball seat 11 where the connecting screw 5 is installed, thus preventing the ball seat 11 from cracking due to the screw connection.

[0018] See Figures 1-5A circular nut 36 is installed inside the shielding cylinder 3 near the perforation 14. A positioning screw 32, used to limit the relative position of the sphere 22 and the ball seat 11, is threaded into the circular nut 36. One end of the positioning screw 32 passes through the perforation 14 and contacts the sphere 22, while the other end extends to the outside of the shielding cylinder 3. A retaining plate 35 is provided on the side of the circular nut 36 away from the perforation 14. The retaining plate 35 is slidably installed inside the shielding cylinder 3, fitted onto the positioning screw 32 and fixedly connected to it. The shielding cylinder 3 and the perforation 14 of the ball seat 11 are concentrically arranged, completely enclosing the positioning screw 32 and the circular nut 36, isolating them from external dust and rock debris. The retaining plate 35 slides synchronously with the positioning screw 32, always positioned on the side of the circular nut 36 away from the perforation 14, sealing the gap between the threaded connection area and the inside of the shielding cylinder 3, preventing debris from seeping into the threads from inside the shielding cylinder 3. By constructing a closed protection system using the shielding cylinder 3 and the baffle plate 35, the problem of mine debris jamming the positioning screw 32 is solved. This reduces the direct contact between the hard surface rock cuttings and the threads, avoiding wear and stripping caused by rock cuttings embedding in the thread gaps. The positioning screw 32 can maintain a smooth thread fit for a long time without frequent replacement, reducing equipment maintenance costs. At the same time, the fixed connection between the round nut 36 and the shielding cylinder 3 prevents the positioning screw 32 from being forcibly tightened due to debris jamming, which could damage the surrounding structure of the ball seat 11 through hole 14 and ensure the long-term stability of the entire adjustment component.

[0019] The end of the shielding cylinder 3 furthest from the ball seat 11 is threadedly connected to a limiting cover 31. One side of the limiting cover 31 has a circular opening, the inner diameter of which is smaller than the inner diameter of the shielding cylinder 3. The limiting cover 31 also has multiple arc-shaped openings 33 arranged equidistantly around the circular opening. The limiting cover 31 prevents the baffle 35 from moving out of the shielding cylinder 3, while the arc-shaped openings 33 facilitate the discharge of debris pushed by the baffle 35 to the arc-shaped openings 33, preventing debris from accumulating inside the shielding cylinder 3.

[0020] See Figure 1 , Figure 2 , Figure 4 and Figure 5The lower surface of the connecting plate 1 is recessed upward to form a circular groove. Three outer tubes 4 are equidistantly arranged in a ring and installed in the circular groove via a rotating shaft. A plug 45 is installed in the outer tube 4 near the connecting plate 1. The end of the plug 45 on the outside of the outer tube 4 is installed in the circular groove via a rotating shaft. An inner tube 41 is threaded into the outer tube 4. A wear-resistant sleeve 42 is fitted on the end of the inner tube 4 on the outside of the outer tube 4. A screw 44 is arranged concentrically with the outer tube 4. A positioning plate 46 is installed on the end of the screw 44 near the connecting plate 1. The positioning plate 46 is installed in the outer tube 4. A disc 43 is installed in the inner tube 41 on the side away from the wear-resistant sleeve 42. A threaded hole is opened in the middle of one side of the disc 43. The screw 44 is threaded into the threaded hole. The outer tube 4 and inner tube 41 under the connecting plate 1 are connected by threads to achieve length adjustment. The wear-resistant sleeve 42 at the end of the inner tube 41 can adapt to the rough surface of the mine and avoid the wear of the support legs formed by the outer tube 4 and inner tube 41. The screw 44 and the disc 43 can further adjust the height of the support legs. The three support legs are arranged in a ring at equal intervals. The connecting plate 1 can be kept horizontal by independent adjustment. Even on the uneven working surface of the mine, a stable instrument support platform can be quickly set up without the need to find a flat site, thus improving the flexibility of operation.

[0021] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mining surveying instrument contracting equipment, characterized in that, include: The connecting plate (1) has a ball seat (11) installed on its upper surface. The outer surface of the ball seat (11) has a through hole (14) that communicates with the internal space of the ball seat (11). The threaded head (2) has a sphere (22) installed at one end, and the sphere (22) is slidably installed in the ball seat (11); A shielding cylinder (3) is arranged concentrically with the through hole (14). One end of the shielding cylinder (3) is connected to the ball seat (11). A round nut (36) is installed inside the shielding cylinder (3) on the side near the through hole (14). A positioning screw (32) for limiting the relative position of the sphere (22) and the ball seat (11) is threaded inside the round nut (36). One end of the positioning screw (32) passes through the through hole (14) and contacts the sphere (22). The end of the positioning screw (32) away from the through hole (14) extends to the outside of the shielding cylinder (3). A baffle (35) is provided on the side of the round nut (36) away from the through hole (14). The baffle (35) is slidably installed inside the shielding cylinder (3). The baffle (35) is sleeved on the positioning screw (32) and connected and fixed to the positioning screw (32).

2. The mining surveying instrument receiving equipment according to claim 1, characterized in that: The shielding cylinder (3) has two lugs (34) installed at one end near the ball seat (11), and the lugs (34) are connected to the ball seat (11) by connecting screws (5).

3. The mining surveying instrument receiving equipment according to claim 2, characterized in that: A protrusion (13) is provided between the lug (34) and the ball seat (11). The protrusion (13) is connected and fixed to the ball seat (11). The connecting screw (5) passes through the lug (34) and is threadedly connected to the protrusion (13).

4. The mining surveying instrument receiving equipment according to claim 1, characterized in that: The end of the shielding cylinder (3) away from the ball seat (11) is threadedly connected to a limiting cover (31). The limiting cover (31) has a circular opening on one side, the inner diameter of which is smaller than the inner diameter of the shielding cylinder (3). The limiting cover (31) has multiple arc-shaped openings (33) equidistantly arranged in a ring on one side. The multiple arc-shaped openings (33) are arranged equidistantly around the circular opening.

5. The mining surveying instrument receiving equipment according to claim 1, characterized in that: The outer surface of the ball seat (11) is provided with a notch (12) for storing the threaded head (2). The notch (12) communicates with the internal space of the ball seat (11). The threaded head (2) is threaded with a pressure cap (21) for fitting against the bottom of the mining surveying instrument.

6. The mining surveying instrument receiving equipment according to claim 1, characterized in that: The lower surface of the connecting plate (1) is recessed upward to form a circular groove. Three outer tubes (4) are equidistantly arranged in a ring through a rotating shaft in the circular groove. The outer tubes (4) are threaded with inner tubes (41). The end of the inner tube (41) outside the outer tubes (4) is fitted with a wear-resistant sleeve (42).

7. The mining surveying instrument receiving equipment according to claim 6, characterized in that: The outer tube (4) is provided with a screw (44) arranged concentrically with the outer tube (4). A positioning plate (46) is installed at one end of the screw (44) near the connecting plate (1). The positioning plate (46) is installed inside the outer tube (4). A disc (43) is installed on the side of the inner tube (41) away from the wear-resistant sleeve (42). A threaded hole is opened in the middle of one side of the disc (43). The screw (44) is threaded into the threaded hole.

8. The mining surveying instrument receiving equipment according to claim 7, characterized in that: A connector (45) is installed inside the outer tube (4) on the side near the connecting plate (1). The end of the connector (45) located outside the outer tube (4) is rotatably installed in the circular groove via a rotating shaft.

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