Underground mine trackless vehicle cab side view mirror fixing device

Abstract

The utility model relates to a side view mirror fixing device of an underground mine trackless vehicle cab, which is applied to a cab door body and comprises a soft sheath, a fixing plate, a view mirror rod and a connecting seat, the soft sheath is sleeved on the view mirror rod, the fixing plate and the connecting seat are respectively arranged on two sides of the soft sheath, and the connecting seat is connected with the fixing plate. And the soft sheath is arranged between the fixing plate and the connecting seat in a penetrating manner. The side view mirror fixing device for the underground mine trackless vehicle cab has the advantages that vibration transmitted to the view mirror rod can be effectively reduced through the soft protective sleeve, and use of the side view mirror on the view mirror rod is not affected by bumping in the running process of a vehicle and vibration transmitted by an engine; the inner surface of the soft protective sleeve is in surface contact with the sight glass rod, the outer surface of the soft protective sleeve is in surface contact with the fixing plate and the connecting base, the fixing plate and the connecting base press the soft protective sleeve from the two sides respectively, reliable connection is guaranteed, and relative sliding is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of side mirror technology, and in particular to a fixing device for the side mirror of the cab of a trackless vehicle in an underground mine. Background Technology

[0002] With the development of production technology, mining is becoming increasingly mechanized and large-scale. As a result, trackless vehicles in underground mines often travel between underground and above ground. Depending on the superstructure, the carrier they carry is also different, but no matter what kind of functional unit the superstructure is, the driver's cab remains unchanged.

[0003] Regarding the side mirrors in the driver's cab, existing technologies, such as those used by the Finnish company Normant, involve installing a connector sleeve on the cab door with a screw hole. A screw-type pentagonal handle is screwed into the screw hole, allowing the side mirror's rod to be inserted into the connector sleeve and secured by the screw-type pentagonal handle engaging with the screw hole. However, this device has drawbacks. The connection method of securing the side mirror's rod via the screw-type pentagonal handle is a point contact, meaning the rod's freedom of movement cannot be restricted. Therefore, when vibrations from the vehicle's engine are transmitted to the cab, the side mirror's rod may slide downwards, preventing the driver from observing the road conditions behind. Furthermore, when the vehicle travels on bumpy roads, combined with engine vibrations, the side mirror's rod is prone to rotation and vibration, causing the side mirror to vibrate. This can easily lead to dizziness and driver fatigue when trying to observe the road conditions through the side mirror. Utility Model Content

[0004] One objective of this application is to provide a reliable side mirror fixing device for the cab of a trackless vehicle in an underground mine.

[0005] The technical solution adopted in this application is: a side mirror fixing device for the cab of a trackless vehicle in an underground mine, applied to the cab door, including a soft cover, a fixing plate, a mirror rod and a connecting seat. The soft cover is sleeved on the mirror rod, the fixing plate and the connecting seat are respectively set on both sides of the soft cover, the connecting seat is connected to the fixing plate, and the soft cover passes through the fixing plate and the connecting seat.

[0006] Compared with the prior art, the advantages of this application are that the soft sheath can effectively reduce the vibration transmitted to the side mirror rod, and the bumps during vehicle operation and the vibration transmitted from the engine will not affect the use of the side mirror on the side mirror rod; the inner surface of the soft sheath is in surface contact with the side mirror rod, and the outer surface of the soft sheath is in surface contact with the fixing plate and the connecting seat. The fixing plate and the connecting seat press the soft sheath from both sides to ensure reliable connection and prevent relative slippage.

[0007] In some embodiments of this application, the connecting seat is provided with a countersunk hole for connecting with the cab door, which can save space, reduce the width dimension of the cab, and reduce the risk of the cab scraping against the side wall of the underground roadway.

[0008] Furthermore, the fixing plate is provided with a through hole, and the connecting seat is provided with a first threaded hole that mates with the through hole. The fixing plate and the connecting seat are connected by bolts, which makes it convenient for the fixing plate to be connected to the connecting seat by bolts, eliminating the need to set nuts on the connecting seat.

[0009] Furthermore, four countersunk holes are provided, and the projections of at least two countersunk holes on the vertical plane coincide with the projections of the fixing plate on the vertical plane. In other words, after installation, the fixing plate can cover at least two countersunk holes. If the bolts in the countersunk holes loosen and move outward, they will be blocked by the fitted fixing plate, preventing the bolts from moving outward. Thus, the connecting plate can maintain its connection with the cab door body while the fixing plate is not separated from the connecting seat, improving safety.

[0010] In some embodiments of this application, the connecting seat is provided with a first arcuate groove, the opening side of which faces the fixing plate, and the first arcuate groove mates with the sight glass rod; the fixing plate is provided with a second arcuate groove, the opening side of which faces the connecting seat, and the second arcuate groove mates with the sight glass rod. This prevents the sight glass rod from moving laterally relative to the connecting seat or fixing plate. During installation, the sight glass rod with its soft sheath simply needs to be inserted into the arcuate groove for convenient and precise installation.

[0011] Furthermore, the center of the second arc groove is located outside the fixed plate; the distance e between the center of the second arc groove and the surface of the fixed plate facing the connecting seat is 2mm-3mm.

[0012] Furthermore, the center of the first arc groove is located outside the connecting seat; the distance f between the center of the first arc groove and the surface of the connecting seat facing the fixing plate is 2mm-3mm.

[0013] In some embodiments of this application, the upper end of the soft sheath has a notch. The notch design allows the upper end of the soft sheath to expand outward, facilitating the insertion of the sight rod through the upper end of the soft sheath 1. Furthermore, when the first and second arc grooves are pressed together, the upper end of the soft sheath closes reliably, ensuring reliable pressing of the upper end of the soft sheath and preventing the sight rod from loosening.

[0014] In some embodiments of this application, the sight glass rod is U-shaped, with one end of the U-shape passing between the fixing plate and the connecting seat.

[0015] In some embodiments of this application, the highest surface of the fixing plate is lower than the highest surface of the connecting seat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0017] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0018] Figure 3 This is a cross-sectional view of the fixing plate in Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the soft sheath in Embodiment 1 of this utility model.

[0020] Figure 5 This is a cross-sectional view of the connector in Embodiment 2 of this utility model.

[0021] In the diagram: 1. Soft sheath; 2. Fixing plate; 3. Through hole; 4. Second arc groove; 5. Sight mirror rod; 6. Connecting seat; 7. Countersunk hole; 8. Cab door; 9. First threaded hole; 10. First arc groove; 11. Notch; 12. Second threaded hole. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Example 1:

[0024] This embodiment provides a side mirror fixing device for the cab of a trackless vehicle in an underground mine, which is applied to the cab door 8, such as... Figure 1 , Figure 2 As shown, the device includes a soft sheath 1, a fixing plate 2, a sight mirror rod 5, and a connecting seat 6. The soft sheath 1 is fitted onto the sight mirror rod 5. The fixing plate 2 and the connecting seat 6 are respectively located on both sides of the soft sheath 1. The connecting seat 6 is connected to the fixing plate 2, and the soft sheath 1 passes between the fixing plate 2 and the connecting seat 6. The inner side of the soft sheath 1 is in contact with the sight mirror rod 5, and the outer side of the soft sheath 1 is in contact with the fixing plate 2 and the connecting seat 6. The connecting seat 6 is used to connect and fix to the cab door 8.

[0025] The soft sheath 1 effectively reduces the transmission of vibration to the side mirror rod 5, so that the side mirror on the side mirror rod 5 is not affected by the bumps during vehicle operation and the vibration transmitted from the engine. The inner surface of the soft sheath 1 is in surface contact with the side mirror rod 5, and the outer surface of the soft sheath 1 is in surface contact with the fixing plate 2 and the connecting seat 6. The fixing plate 2 and the connecting seat 6 press the soft sheath 1 from both sides to ensure reliable connection and prevent relative slippage.

[0026] To ensure a reliable connection between the connecting seat 6 and the cab door 8, the connecting seat 6 is provided with a countersunk hole 7 for connection with the cab door 8. In this embodiment, the cab door 8 is provided with a second threaded hole 12, which mates with the countersunk hole 7. The connecting seat 6 is connected to the cab door 8 by an internal hexagon screw. The head of the internal hexagon screw can be concealed in the countersunk hole 7, saving space and reducing the width of the cab, thus lowering the risk of the cab scraping against the side wall of the underground roadway.

[0027] To ensure a reliable connection between the fixing plate 2 and the connecting seat 6, the fixing plate 2 is provided with through holes 3, and the connecting seat 6 is provided with first threaded holes 9 that mate with the through holes 3. The fixing plate 2 and the connecting seat 6 are connected by bolts. In this embodiment, four through holes 3 are provided, and four first threaded holes 9 are provided accordingly. One side of the connecting seat 6 needs to fit against the cab door 8, making it difficult to install nuts on the side of the connecting seat 6 facing the cab door 8. The first threaded holes 9 on the connecting seat 6 mate with the through holes 3 on the fixing plate 2, making it convenient for the fixing plate 2 to be connected to the connecting seat 6 by bolts, eliminating the need to install nuts on the connecting seat 6.

[0028] To ensure reliable installation of the connecting seat 6, four countersunk holes 7 are provided, guaranteeing a secure connection between the connecting seat 6 and the cab door 8. At least two of the countersunk holes 7 have projections on the vertical plane that coincide with the projection of the fixing plate 2 on the vertical plane. This means that after installation, the fixing plate 2 covers at least two of the countersunk holes 7. Any loose hexagonal screws in the countersunk holes 7 will be blocked from moving outwards by the fitted fixing plate 2, preventing them from continuing to move outwards. Therefore, as long as the fixing plate 2 remains attached to the connecting seat 6, the connecting seat 6 maintains its connection with the cab door 8, improving safety. In this embodiment, the projections of two countersunk holes 7 on the vertical plane coincide with the projection of the fixing plate 2 on the vertical plane.

[0029] To ensure reliable installation of the sight glass rod 5, the connecting seat 6 is provided with a first arc groove 10. The opening side of the first arc groove 10 faces the fixing plate 2, and the first arc groove 10 mates with the sight glass rod 5. The first arc groove 10 fits with the sight glass rod 5, preventing the sight glass rod 5 from moving laterally relative to the connecting seat 6. During installation, the sight glass rod 5, with its soft sheath 1, simply needs to be inserted into the first arc groove 10 for convenient and precise installation.

[0030] To ensure reliable installation of the sight glass rod 5, the fixing plate 2 is provided with a second arc groove 4. The opening side of the second arc groove 4 faces the connecting seat 6, and the second arc groove 4 mates with the sight glass rod 5. The second arc groove 4 fits with the sight glass rod 5, preventing the sight glass rod 5 from moving laterally relative to the fixing plate 2. During installation, the sight glass rod 5, with its soft protective sleeve 1, simply needs to be inserted into the second arc groove 4 for convenient and precise installation.

[0031] For reliable installation of sight glass rod 5, such as Figure 3As shown, the center of the second arc groove 4 is located outside the fixed plate 2, which can ensure the pressing effect on the sight glass rod 5; the distance e between the center of the second arc groove 4 and the surface of the fixed plate 2 facing the connecting seat 6 is 2mm-3mm. Within the range of 2mm-3mm, the fixed plate 2, the soft sheath 1, the sight glass rod 5 and the connecting seat 6 can be fully pressed together when connected, which can not only ensure the pressing effect, but also prevent the gap between the fixed plate 2 and the connecting seat 6 from being too large.

[0032] To facilitate the insertion of the sight rod 5 into the soft sheath 1, such as Figure 4 As shown, the upper end of the soft sheath 1 has a notch 11. The design of the notch 11 allows the upper end of the soft sheath 1 to expand outward, facilitating the insertion of the sight glass rod 5 from the upper end of the soft sheath 1. Furthermore, when the first arc groove 10 and the second arc groove 4 are pressed together, the upper end of the soft sheath 1 closes reliably, ensuring reliable pressing of the upper end of the soft sheath 1 and preventing the sight glass rod 5 from loosening.

[0033] In this embodiment, the top surface of the soft sheath 1 is not higher than the top surface of the fixing plate 2, and the bottom surface of the soft sheath 1 is not lower than the bottom surface of the fixing plate 2. That is, the soft sheath 1 can be hidden in the second arc groove 4, making the appearance neater. If the soft sheath 1 is partially compressed and the remaining part is not compressed, it is easy to break under stress at the separation between the compressed and uncompressed parts, which affects the service life of the soft sheath 1.

[0034] To ensure the reliability of the sight mirror rod 5, it is U-shaped, with one end of the U-shape passing between the fixing plate 2 and the connecting seat 6. One side of the U-shape is longer than the other, with the longer side positioned between the fixing plate 2 and the connecting seat 6, and the shorter side housing the side mirror. The overall U-shaped structure facilitates connection with the fixing plate 2 and the connecting seat 6, as well as the installation of the side mirror. It also allows for convenient angle adjustment during installation and provides a distance from the driver's cab door 8 for easy observation.

[0035] To reduce the risk of the sight glass rod 5 slipping, the highest surface of the fixing plate 2 is lower than the highest surface of the connecting seat 6. This reduces the volume of the fixing plate 2, saves material, and exposes some of the countersunk holes 7 on the connecting seat 6, allowing direct observation of the looseness of the hexagon socket screws for timely tightening.

[0036] Example 2:

[0037] This embodiment provides a side mirror fixing device for the cab of a trackless vehicle in an underground mine, such as... Figure 5 As shown, except that the center of the second arc groove 4 is located outside the fixing plate 2, which is replaced by the center of the first arc groove 10 being located outside the connecting seat 6, the rest are the same as the features described in Embodiment 1.

[0038] To ensure reliable installation of the sight glass rod 5, the distance f between the center of the first arc groove 10 and the surface of the connecting seat 6 facing the fixing plate 2 is 2mm-3mm. Within the range of 2mm-3mm, the fixing plate 2, the soft sheath 1, the sight glass rod 5, and the connecting seat 6 can be fully pressed together during connection, which can ensure the pressing effect and prevent the gap between the fixing plate 2 and the connecting seat 6 from being too large.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A side mirror fixing device for the cab of a trackless vehicle in an underground mine, applied to the cab door (8), characterized in that, It includes a soft sheath (1), a fixing plate (2), a sight glass rod (5) and a connecting seat (6). The soft sheath (1) is fitted onto the sight glass rod (5). The fixing plate (2) and the connecting seat (6) are respectively located on both sides of the soft sheath (1). The connecting seat (6) is connected to the fixing plate (2). The soft sheath (1) passes between the fixing plate (2) and the connecting seat (6).

2. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 1, characterized in that: The connecting seat (6) is provided with a countersunk hole (7) for connecting with the cab door (8).

3. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 2, characterized in that: The fixing plate (2) is provided with a through hole (3), and the connecting seat (6) is provided with a first threaded hole (9) that mates with the through hole (3). The fixing plate (2) and the connecting seat (6) are connected by bolts.

4. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 3, characterized in that: Four countersunk holes (7) are provided, and the projections of at least two countersunk holes (7) on the vertical plane coincide with the projections of the fixing plate (2) on the vertical plane.

5. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 1, characterized in that: The connecting seat (6) is provided with a first arc groove (10), the opening side of the first arc groove (10) faces the fixing plate (2), and the first arc groove (10) cooperates with the sight glass rod (5); the fixing plate (2) is provided with a second arc groove (4), the opening side of the second arc groove (4) faces the connecting seat (6), and the second arc groove (4) cooperates with the sight glass rod (5).

6. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 5, characterized in that: The center of the second arc groove (4) is located outside the fixed plate (2); the distance e between the center of the second arc groove (4) and the surface of the fixed plate (2) facing the connecting seat (6) is 2mm-3mm.

7. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 5, characterized in that: The center of the first arc groove (10) is located outside the connecting seat (6); the distance f between the center of the first arc groove (10) and the surface of the connecting seat (6) facing the fixing plate (2) is 2mm-3mm.

8. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 1, characterized in that: The upper end of the soft sheath (1) has a notch (11).

9. The side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 1, characterized in that: The sight glass rod (5) is U-shaped, with one end of the U-shape passing between the fixing plate (2) and the connecting seat (6).

10. A side mirror fixing device for the cab of a trackless vehicle in an underground mine according to claim 1, characterized in that: The highest surface of the fixing plate (2) is lower than the highest surface of the connecting seat (6).

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