A support disk that restricts rotational degrees of freedom

Abstract

This invention provides a support plate that restricts rotational freedom, comprising a connector, a top cover, and a base. One end of the connector is used to connect to a leveling leg, and the end of the connector away from the leveling leg has a protrusion. One end of the base has a support plate for contacting a support surface. The top cover is connected to the base, and the interiors of the top cover and the base have connected cavities. The protrusion of the connector is located within the cavity. The base can rotate relative to the connector, but its rotation along a first direction is restricted. The first direction is the direction in which the connector extends towards the leveling leg. This invention effectively restricts the rotation of the support plate relative to the leveling leg, avoiding structural interference and safety issues caused by the rotation of a non-circular support plate.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, specifically to a support disk that restricts rotational degrees of freedom. Background Technology

[0002] Modern special vehicles, such as radar vehicles and artillery launchers, typically carry a number of high-precision devices. Before these devices can operate, they usually need to be leveled relative to the vehicle platform to provide a good reference plane. The leveling outriggers are the actuators for the leveling action, and they fix the vehicle in place through the bottom support plate to ensure the vehicle's stability.

[0003] Due to space limitations in vehicles, existing support plate structures are all small-diameter circular support plates. When deploying equipment on soft ground, riverbanks, or semi-desert areas, the small support plates cannot provide sufficient support area. To prevent the equipment from sinking, the vehicle must carry wooden blocks to place under the support plate to increase the contact area and reduce the ground pressure. However, the wooden blocks are large and heavy, making manual handling very inconvenient.

[0004] To address the aforementioned issues, non-circular support plates, such as triangular or rectangular ones, can be used to increase their effective working area. However, in practice, the connection between the leveling leg piston and the support plate is typically a ball joint. If the rotation of the non-circular support plate relative to the leg axis is not restricted, it may interfere with surrounding equipment, potentially hitting tires or causing safety accidents.

[0005] Therefore, this utility model provides a support disk that restricts the degree of rotational freedom, avoiding structural interference and safety problems caused by the rotation of a non-circular support disk. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a support disk that can restrict the degree of rotational freedom.

[0007] The present invention provides a support plate for restricting rotational degrees of freedom, comprising a connector, a top cover, and a base; one end of the connector is used to connect to a leveling leg, and the end of the connector away from the leveling leg has a protrusion; one end of the base has a support plate for contacting a support surface; the top cover is connected to the base, and the interiors of the top cover and the base have connected cavities, the protrusion of the connector is located in the cavity, the base can rotate relative to the connector, and the rotation of the base along a first direction is restricted, the first direction being the extension direction of the connector towards the leveling leg.

[0008] Furthermore, the connector includes a threaded rod, and the protrusion of the connector is a ball head. The ball head is connected to one end of the threaded rod. The ball head has an upper convex surface and a lower convex surface. The upper convex surface is used to contact the upper cover, and the lower convex surface is used to contact the base.

[0009] Furthermore, the upper spherical convex surface and the lower spherical convex surface are not concentric.

[0010] Furthermore, there is a gap between the upper spherical convex surface and the upper cover, or between the lower spherical convex surface and the base.

[0011] Furthermore, a locking nut is provided on the threaded rod.

[0012] Furthermore, the upper cover has an upper concave surface that mates with the upper convex surface; the base has a lower concave surface that mates with the lower convex surface.

[0013] Furthermore, the upper cover is connected to the base by screws, which are arranged along the first direction.

[0014] Preferably, the upper cover is provided with a first through hole, the base is provided with a threaded hole, and the screw passes through the first through hole and is connected to the threaded hole.

[0015] Furthermore, the protrusion of the connector is provided with a second through hole, and the screw also passes through the second through hole.

[0016] Preferably, the second through hole is a flat hole, allowing the connector to rotate relative to the screw.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides a support plate that restricts rotational freedom. By utilizing the cooperation of screws and ball heads in the connector, it can effectively limit the rotation of the support plate relative to the leveling legs, avoiding structural interference and safety issues caused by the rotation of non-circular support plates. Through the cooperation of the butterfly-shaped ball head with two different spherical surfaces between the top cover and the base, the specific pressure is reduced, the load-bearing capacity is increased, the ball head is flattened, and the height of the support plate is reduced. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is a side view of the support disk that restricts rotational degrees of freedom according to an embodiment of the present invention;

[0021] Figure 2This is a cross-sectional view of the support disk that restricts rotational degrees of freedom according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the butterfly-shaped ball head according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the upper cover according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the base structure according to an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the upper spherical surface being bonded according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram showing the support plate connected to the leveling leg in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the leveling outriggers extending and touching the ground according to an embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the leveling support leg in the retracted state according to an embodiment of the present invention.

[0029] Among them, 1-connector, 101-upper spherical convex surface, 102-lower spherical convex surface, 103-threaded rod, 104-second through hole, 2-upper cover, 201-upper spherical concave surface, 202-first through hole, 3-base, 301-lower spherical concave surface, 302-threaded hole, 303-support plate, 304-water passage hole, 4-screw, 5-locking nut, 6-upper spherical surface fit, 7-lower spherical surface gap, 8-support plate, 9-leveling leg, 901-push rod, 10-slope, 11-departure angle. Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] This invention provides a support plate that restricts rotational freedom, thereby limiting the rotation of the support plate relative to the axis of the leveling leg and avoiding structural interference and safety issues caused by the rotation of a non-circular support plate.

[0032] like Figure 1 and Figure 2As shown, the support plate restricting rotational freedom in this embodiment includes a connector 1, an upper cover 2, and a base 3. One end of the connector 1 is used to connect with the leveling leg, and the other end of the connector 1 has a protrusion that connects to the upper cover 2 and the base 3. The upper cover 2 is connected to the base 3, and a cavity is provided inside the upper cover 2 and the base 3 so that the protrusion of the connector 1 can be accommodated in the cavity, realizing the connection between the connector 1 and the upper cover 2 and the base 3. Through the protrusion structure, the connector 1 can rotate relative to the upper cover 2 and the base 3. In this application, the rotation of the base 3 relative to the connector 1 in a first direction is restricted, thereby avoiding safety problems caused by interference between the base 3 and the surrounding structure. The first direction is the extension direction of the connector 1 towards the leveling leg, which can also be described as the axial direction of the connector 1 or the leveling leg. The rotation of the base 3 relative to the connector 1 is restricted, that is, the base 3 cannot rotate relative to the connector 1 in the first direction, or can only rotate very slightly.

[0033] In this embodiment, the upper cover 2 and the base 3 are connected by screws 4, which press the upper cover 2 onto the base 3. The screws 4 are arranged along the first direction described above.

[0034] The protrusion of connector 1 can be understood as having a diameter larger than that of other parts. Specifically, for example... Figure 3 As shown, the connector 1 has a threaded rod 103, and the end of the threaded rod 103 is provided with a ball head, which is the protrusion of the connector 1. The ball head has an upper convex surface 101 and a lower convex surface 102. The upper convex surface 101 mates with the upper cover 2, and the lower convex surface 102 mates with the base 3. The threaded rod 103 passes through the upper cover 2 and extends to the outside of the upper cover 2.

[0035] like Figure 4 As shown, the cavity of the upper cover 2 is provided with an upper spherical concave surface 201, which mates with the upper spherical convex surface 101. The upper cover 2 is provided with a first through hole 202 in the circumference, and the screw 4 passes through the first through hole 202.

[0036] like Figure 5 As shown, one end of the base 3 is provided with a support plate 303, which is used to contact the support surface so that the support plate can be supported on the support surface. The cavity of the base 3 is provided with a lower spherical concave surface 301, which mates with the lower spherical convex surface 102. The base 3 is provided with a threaded hole 302 in the circumference, through which the screw 4 is installed, so that the upper cover 2 is connected to the base 3.

[0037] The rotation of the connector 1 relative to the upper cover 2 and the base 3 is achieved through the engagement of the upper convex surface 101 and the upper concave surface 201, and the lower convex surface 102 and the lower concave surface 301. In this embodiment, the upper convex surface 101 and the upper concave surface 201, and the lower convex surface 102 and the lower concave surface 301 do not contact each other simultaneously, allowing the ball head to float up and down between the upper cover 2 and the base 3. Specifically, as shown... Figure 6 As shown, when the upper spherical convex surface 101 and the upper spherical concave surface 201 are in contact 6, the lower spherical convex surface 102 and the lower spherical concave surface 301 are in a gap 7, and vice versa.

[0038] In this embodiment, the support plate 303 of the base 3 is rectangular to increase the effective contact area with the support surface. A water passage hole 304 is provided at the center of the base 3 to prevent rainwater accumulation.

[0039] To restrict the rotation of the base 3 relative to the connector 1, a second through hole 104 is provided on the ball head of the connector 1, and the screw 4 passes through the second through hole 104, thus restricting the rotation of the base 3 around the axis. Meanwhile, to accommodate the rotation of the base 3 in other directions, especially the rotation of the long side of the rectangle, to adapt to different slopes of the support surface, the second through hole 104 is designed to be flat, with the long side of the flat shape parallel to the long side of the rectangle. This ensures that the screw 4 is unrestricted in at least one direction within the second through hole 104, thus satisfying the requirement for rotation of the long side of the rectangle.

[0040] The rotational torque of the base 3 relative to the ball head of the connector 1 is very small, mainly due to inertial force. There is no precision requirement for the rotation angle of the base 3 relative to the connector 1. In addition, the rotation of the support plate 303 relative to the axis of the leveling leg is mostly due to human error, which mistakenly rotates the support plate to an interference angle. Therefore, the need to limit rotation can be met by the cooperation of the screw 4 and the second through hole 104.

[0041] In this embodiment, the ball head of connector 1 is butterfly-shaped, similar to the shape of a "flying saucer". The upper convex surface 101 and the lower convex surface 102 can be non-concentric. In particular, the lower convex surface 102, which is subject to greater load, can have its contact pressure reduced by enlarging its spherical diameter, thereby increasing its load-bearing capacity. Compared to a ball joint, this design achieves flattening and reduces the height. Correspondingly, the upper concave surface 201 and the lower concave surface 301 have shapes adapted to the upper convex surface 101 and the lower convex surface 102, respectively.

[0042] The top cover 2 and the base 3 can be made of alloy steel. The top cover 2 is heat-treated, and the base 3 is heat-treated and then hardened on the spherical surface. The connecting part 1 is made of copper alloy or alloy steel with a phosphated surface to increase wear resistance. All edges of the spherical surface are rounded to avoid damaging the mating spherical surface.

[0043] like Figure 2As shown, a locking nut 5 is connected to the threaded rod 103, allowing the threaded rod 103 to connect with the leveling support leg. Figure 7 The diagram shown is a schematic of the connection between the support plate 8 and the leveling leg 9 in this embodiment. The connecting piece 1 of the support plate 8 is connected to the push rod 901 of the leveling leg 9 through the locking nut 5, and then supported on the ground by the support plate 303 of the base 3.

[0044] like Figure 8 and Figure 9 As shown, the support plate 8 can be supported on the slope 10, at which time the base 3 rotates at a certain angle relative to the connector 1. Specifically, when the leveling outrigger 9 is extended, the base 3 contacts the ground, at which time the lower spherical convex surface 102 contacts the lower spherical concave surface 301, and the base 3 rotates at a certain angle relative to the horizontal plane to adapt to the unevenness of the road surface; when the leveling outrigger 9 is retracted, the upper spherical convex surface 101 contacts the upper spherical concave surface 201, and the base 3 rotates at a certain angle relative to the horizontal plane to adapt to the vehicle departure angle 11.

[0045] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A support disk that restricts rotational degrees of freedom, characterized in that, The device includes a connector, a top cover, and a base. One end of the connector is used to connect to a leveling leg, and the end of the connector away from the leveling leg has a protrusion. One end of the base has a support plate for contacting a support surface. The top cover is connected to the base, and the top cover and the base have connected cavities inside. The protrusion of the connector is located in the cavity. The base can rotate relative to the connector, and the rotation of the base along a first direction is restricted. The first direction is the direction in which the connector extends towards the leveling leg.

2. The support disk for restricting rotational degrees of freedom according to claim 1, characterized in that, The connector includes a threaded rod, and the protrusion of the connector is a ball head. The ball head is connected to one end of the threaded rod. The ball head has an upper convex surface and a lower convex surface. The upper convex surface is used to contact the upper cover, and the lower convex surface is used to contact the base.

3. The support disk for restricting rotational degrees of freedom according to claim 2, characterized in that, The upper convex surface and the lower convex surface are not concentric.

4. The support disk for restricting rotational degrees of freedom according to claim 2, characterized in that, There is a gap between the upper spherical convex surface and the upper cover, or between the lower spherical convex surface and the base.

5. The support disk for restricting rotational degrees of freedom according to claim 2, characterized in that, The threaded rod is equipped with a lock nut.

6. The support disk for restricting rotational degrees of freedom according to claim 2, characterized in that, The upper cover has an upper concave surface that mates with the upper convex surface; the base has a lower concave surface that mates with the lower convex surface.

7. The support disk for restricting rotational degrees of freedom according to claim 6, characterized in that, The top cover is connected to the base by screws, which are arranged along the first direction.

8. The support disk for restricting rotational degrees of freedom according to claim 7, characterized in that, The top cover has a first through hole, and the base has a threaded hole. The screw passes through the first through hole and is connected to the threaded hole.

9. The support disk for restricting rotational degrees of freedom according to claim 7, characterized in that, The connector has a second through hole on its protrusion, and the screw also passes through the second through hole.

10. The support disk for restricting rotational degrees of freedom according to claim 9, characterized in that, The second through hole is a flat hole, which allows the connector to rotate relative to the screw.

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