A non-destructive fixing chassis device for tripod tip

Abstract

The present invention discloses a non-destructive fixing chassis device for the toe of a tripod, comprising a non-slip base connected to the toe of the tripod, the base connected to the toe of the tripod through an angle adjustment mechanism, the angle adjustment mechanism comprising a sleeve connected to the toe of the tripod, the sleeve fixedly connected with a ratchet, rotatably connected with a special-shaped movable disk, the outer contour of the special-shaped movable disk close to the ratchet teeth of the ratchet exceeds the outer contour of the ratchet teeth, the ratchet is provided with a limiting structure for limiting the rotation range of the special-shaped movable disk, the non-slip base is rotatably connected with the sleeve, a pawl matched with the ratchet teeth is provided on the non-slip base, the inner side wall of the pawl matches with the outer contour of the special-shaped movable disk and the ratchet teeth of the ratchet, and the pawl rotates closely against the outer contour of the special-shaped movable disk within the limited range of the limiting structure as the non-slip base rotates. The present invention fully guarantees non-destructive maximization, installation convenience, adjustment convenience, storage convenience, support stability and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of ancient building measurement, in particular to a non-destructive fixing chassis device for the tip of a tripod. Background Art

[0002] Whether it is modern or ancient architecture, preliminary investigation and real-time monitoring of the process are very important work procedures. Rigorous measurement and monitoring require many high-precision and high-precision instruments to assist in measurement. These instruments are not only expensive and fragile, but also need to be fixed on a tripod for each measurement. The tripod legs are deeply inserted into the ground using the principle of triangular support stability to stabilize the tripod support and prevent the instrument from tipping over.

[0003] However, there are two prominent problems with the existing tripod stabilization methods: 1. The tripod must be set up on a soft surface, such as soil; or placed on a rough surface with obvious potholes to better fix the tripod and prevent it from slipping and falling. 2. Because the tripod legs are extremely sharp and need to be deep below the surface to stabilize, the surface must be damaged, especially for fragile or easily damaged surface materials, and this damage is often irreversible.

[0004] The damage problem caused by the above-mentioned tripod stabilization method is particularly serious in the field of ancient buildings. For example, when measuring the surface in a relatively smooth ancient building interior, the toes of the tripod can only be inserted into the joints of the brick seams as much as possible to prevent lateral slippage; on some relatively fragile surface materials, the sharp toes will also damage the surface materials. In addition, during the measurement process in pits in the archaeological field, since the underground pits are all muddy surfaces, the legs of the tripod will penetrate below the ground, thereby destroying the archaeological remains and causing certain measurement problems. For the above reasons, it is urgent to develop a non-destructive tripod fixing method to ensure that there will be no slippage due to the influence of the surface material, especially for tile surfaces; in addition, it is also necessary to ensure that the surface material will not be damaged, which is particularly important in the field of ancient buildings and other special environments. Summary of the invention

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a non-destructive fixing chassis device for the toe of a tripod, which solves the technical problem that the toe of the existing tripod is difficult to fix and is easy to damage the ground surface.

[0006] The technical solution of the present invention is achieved as follows: a lossless fixed chassis device for the toe of a tripod comprises a non-slip base connected to the toe of the tripod, the base is connected to the toe of the tripod via an angle adjustment mechanism, the angle adjustment mechanism comprises a sleeve connected to the toe of the tripod, the sleeve is fixedly connected to a ratchet and rotatably connected to a special-shaped movable disk, the outer contour of the special-shaped movable disk close to the ratchet teeth of the ratchet exceeds the outer contour of the ratchet teeth, the ratchet is provided with a limiting structure for limiting the rotation range of the special-shaped movable disk, the non-slip base is rotatably connected to the sleeve, a pawl cooperating with the ratchet teeth is provided on the non-slip base, the inner side wall of the pawl cooperates with the outer contour of the special-shaped movable disk and the ratchet teeth of the ratchet, and the pawl rotates closely against the outer contour of the special-shaped movable disk within the limited range of the limiting structure as the non-slip base rotates.

[0007] Furthermore, the limiting structure includes a stopping protrusion arranged on the ratchet wheel, and an arc-shaped limiting groove matching with the stopping protrusion is arranged on the special-shaped movable disk.

[0008] Furthermore, the bottom of the anti-skid base is provided with an anti-skid pad or a plurality of anti-skid protrusions.

[0009] Furthermore, the lower end surface of the anti-slip protrusion is spherical.

[0010] Furthermore, the bottom end of the sleeve is connected with an ear plate, the ear plate is connected with a fixed shaft, the ratchet is fixedly connected to the sleeve via the fixed shaft, and the special-shaped movable disk is rotationally connected to the sleeve via the fixed shaft.

[0011] Furthermore, two ear plates are arranged at intervals, and the fixed shaft is arranged between the two ear plates.

[0012] Furthermore, the anti-skid base is rotatably connected to the fixed shaft via a connecting rod.

[0013] Furthermore, two connecting rods are provided, and the two connecting rods are symmetrically arranged on both sides of the anti-slip base.

[0014] Furthermore, a friction ring is arranged inside the sleeve to match the toe of the tripod.

[0015] Furthermore, the upper surface of the friction ring is a smooth surface, and the lower surface is a rough surface.

[0016] The present invention can be firmly fixed on the toe of the tripod, without affecting the opening and contraction of the tripod, and can be rotated and fixed at any angle to achieve fixed support on any plane. The bottom surface of the anti-skid base is a surface with a large roughness, which fully avoids slippage and prevents the tripod from shifting sideways and tipping over. In addition, the anti-skid base of the present invention can be easily stored and extended, and the sleeve can be easily connected to the toe of the tripod without loosening or being difficult to pull out. The present invention fully guarantees maximum losslessness, installation convenience, adjustment convenience, storage convenience, support stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the first state of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the second state of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the third state of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the fourth state of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A non-destructive fixing chassis device for the tip of a tripod, such as Figure 1 As shown, it includes an anti-skid base 6 connected to the toe of the tripod. The anti-skid base 6 contacts the ground, thereby avoiding the adverse effects of the toe of the traditional tripod on the ground. The bottom of the anti-skid base 6 is provided with an anti-skid pad or a plurality of anti-skid protrusions 62. The lower end surface of the anti-skid protrusion 62 is spherical. The spherical anti-skid protrusions form multiple point contacts, which can not only play an anti-skid role, but also spread the pressure to avoid damage to the base. At the same time, the plurality of anti-skid protrusions are equivalent to a plurality of non-sharp positioning points. As long as one positioning point plays a lateral blocking role, it can avoid side slipping or tipping, and there is no need to deliberately approach the brick joints on the ground for positioning.

[0024] The anti-skid base 6 is connected to the tripod toe via an angle adjustment mechanism. The anti-skid base 6 can be fixed at a specific angle within a certain range through rotation and positioning of the angle adjustment mechanism, thereby adapting to the supporting function of different terrains.

[0025] The angle adjustment mechanism includes a sleeve 1 connected to the tripod foot, and a friction ring 13 is arranged inside the sleeve 1 to match the tripod foot to ensure stability when plugged into the tripod foot. The upper surface of the friction ring 13 is smooth and the lower surface is rough, which is equivalent to forming a barbed structure, which is easy to plug in and will not easily loosen.

[0026] The bottom end of the sleeve 1 is provided with two ear plates 11 at intervals, and a fixed shaft 12 is connected between the two ear plates 11. The fixed shaft 12 is fixedly provided on the ear plates 11, that is, the fixed shaft 12 is fixedly connected to the sleeve 1. The fixed shaft 12 is fixedly provided with a ratchet 4 and is rotatably connected with a special-shaped movable disk 5, and the anti-skid base 6 is rotatably connected to the fixed shaft 12 through a connecting rod 63. The special-shaped movable disk 5 and the anti-skid base 6 can rotate around the fixed shaft 12, that is, they can rotate relative to the sleeve 1, while the ratchet 4 is fixed relative to the sleeve 1.

[0027] Furthermore, two connecting rods 63 are provided, and the two connecting rods 63 are symmetrically arranged on both sides of the anti-slip base 6 .

[0028] The anti-skid base 6 is provided with a pawl 61 that cooperates with the ratchet teeth, that is, when the anti-skid base 6 rotates around the fixed shaft 12, the pawl 61 can engage with the ratchet teeth, thereby realizing the angular positioning of the anti-skid base 6. In order to facilitate the pawl 61 to adjust the positioning angle reciprocally, the outer contour of the ratchet teeth of the special-shaped movable disk 5 close to the ratchet wheel 4 exceeds the outer contour of the ratchet teeth, that is, under the action of the special-shaped movable disk 5, the pawl 61 will rotate closely to the outer contour of the special-shaped movable disk 5 as the anti-skid base 6 rotates. However, if the pawl 61 always rotates closely to the outer contour of the special-shaped movable disk 5, it will never engage with the ratchet teeth.

[0029] In order to make the pawl 61 rotate in close contact with the outer contour of the special-shaped movable disk 5 and engage with the ratchet teeth in time, a limiting structure for limiting the rotation range of the special-shaped movable disk 5 is provided on the ratchet wheel 4. The limiting structure includes a stop protrusion 41 provided on the ratchet wheel 4, and an arc-shaped limit groove 51 matched with the stop protrusion 41 is provided on the special-shaped movable disk 5. The pawl 61 can rotate conveniently without obstruction only when it rotates within the coverage range of the special-shaped movable disk 5. When the pawl 61 exceeds the coverage range of the special-shaped movable disk 5, the pawl 61 can engage with the ratchet teeth to achieve positioning.

[0030] The use process of the present invention is as follows:

[0031] The first step, such as Figure 1 As shown, when the anti-slip base 6 is not unfolded, the left end of the arc-shaped limiting groove 51 is engaged with the stopping protrusion 41, and the special-shaped movable disk 5 is located at the right extreme position. At this time, the pawl 61 is tightly fitted with the special-shaped movable disk 5, and the angles between the two will not change relatively.

[0032] The second step is, Figure 2 As shown, the anti-skid base 6 is adjusted clockwise, and the pawl 61 drives the special-shaped movable plate 5 to rotate clockwise while following the movement, until the right end of the arc-shaped limiting groove 51 is stopped and matched with the stopping protrusion 41, and the special-shaped movable plate 5 is located at the left limit position.

[0033] The third step is Figure 3 As shown, the anti-skid base 6 continues to be adjusted clockwise. At this time, the pawl 61 moves with the movement and rotates clockwise relative to the special-shaped movable disk 5, contacting the ratchet tooth at the leftmost end of the ratchet wheel to achieve clamping and fixing.

[0034] The fourth step is Figure 4 As shown, if the inclination angle of the anti-skid base 6 needs to be reduced, the anti-skid base 6 is adjusted counterclockwise. At this time, since the pawl 61 is engaged with the ratchet teeth, and the outer contour of the special-shaped movable disk 5 close to the ratchet teeth of the ratchet wheel 4 exceeds the outer contour of the ratchet teeth, the pawl 61 moves with the special-shaped movable disk 5 and drives the counterclockwise rotation of the special-shaped movable disk 5 until the anti-skid base 6 is adjusted to a suitable angle.

[0035] Step 5: When the inclination angle of the anti-skid base 6 needs to be increased again, the anti-skid base 6 is adjusted counterclockwise, and the pawl 61 drives the special-shaped movable disk 5 to rotate counterclockwise while following the movement, until the left end of the arc-shaped limit groove 51 is stopped and matched with the stop protrusion 41, and the special-shaped movable disk 5 is located at the right limit position. At this time, the pawl 61 moves from the match with the ratchet to the outside of the contour of the special-shaped movable disk 5, and then the adjustment can be carried out according to steps 1 to 3.

[0036] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-destructive fixing chassis device for the tip of a tripod, characterized in that: The invention comprises an anti-skid base (6) connected to the toe of a tripod, wherein the base (6) is connected to the toe of the tripod via an angle adjustment mechanism, wherein the angle adjustment mechanism comprises a sleeve (1) connected to the toe of the tripod, wherein the sleeve (1) is fixedly connected to a ratchet (4) and rotatably connected to a special-shaped movable disk (5), wherein the outer contour of the special-shaped movable disk (5) close to the ratchet teeth of the ratchet (4) exceeds the outer contour of the ratchet teeth, and the ratchet (4) is provided with a limiting structure for limiting the rotation range of the special-shaped movable disk (5), wherein the anti-skid base (6) is rotatably connected to the sleeve (1), and a ratchet pawl (61) matched with the ratchet teeth is provided on the anti-skid base (6), wherein the inner side wall of the ratchet pawl (61) matches with the outer contour of the special-shaped movable disk (5) and the ratchet teeth of the ratchet (4), and the ratchet pawl (61) rotates in close contact with the outer contour of the special-shaped movable disk (5) within the limited range of the limiting structure as the anti-skid base (6) rotates; The limiting structure comprises a stop protrusion (41) provided on the ratchet (4), and an arc-shaped limit groove (51) matched with the stop protrusion (41) is provided on the special-shaped movable plate (5); a plurality of anti-slip protrusions (62) are provided at the bottom of the anti-slip base (6); the lower end surface of the anti-slip protrusion (62) is spherical; the plurality of anti-slip protrusions (62) are equivalent to a plurality of non-sharp positioning points, and at least one of the positioning points cooperates with the lateral stop of the brick joint; Under the action of the special-shaped movable disk (5), the pawl (61) rotates along with the anti-slip base (6) and closely follows the outer contour of the special-shaped movable disk (5). The pawl (61) can rotate conveniently without obstruction only when it rotates within the coverage of the special-shaped movable disk (5). When the pawl (61) exceeds the coverage of the special-shaped movable disk (5), the pawl (61) can engage with the ratchet teeth to achieve positioning. The bottom end of the sleeve (1) is connected to an ear plate (11), the ear plate (11) is connected to a fixed shaft (12), the ratchet (4) is fixedly connected to the sleeve (1) via the fixed shaft (12), and the special-shaped movable disc (5) is rotatably connected to the sleeve (1) via the fixed shaft (12); Two ear plates (11) are arranged at intervals, and the fixed shaft (12) is arranged between the two ear plates (11); The anti-slip base (6) is rotatably connected to the fixed shaft (12) via a connecting rod (63); Two connecting rods (63) are provided, and the two connecting rods (63) are symmetrically arranged on both sides of the anti-slip base (6); The sleeve (1) is provided with a friction ring (13) inside thereof which matches the toe of the tripod; The upper surface of the friction ring (13) is a smooth surface, and the lower surface is a rough surface; It is used for surface measurement in relatively smooth ancient buildings or measurement in pits and caves in the field of archaeology. The usage process is as follows: In the first step, when the anti-slip base (6) is not unfolded, the left end of the arc-shaped limit groove (51) is engaged with the stop protrusion (41), and the special-shaped movable plate (5) is located at the right limit position. At this time, the ratchet (61) and the special-shaped movable plate (5) are closely matched, and the angles of the two will not change relative to each other; The second step is to adjust the anti-skid base (6) clockwise, so that the pawl (61) drives the special-shaped movable plate (5) to rotate clockwise while following the movement, until the right end of the arc-shaped limit groove (51) is stopped and matched with the stop protrusion (41), and the special-shaped movable plate (5) is located at the left limit position; The third step is to continue to adjust the anti-skid base (6) clockwise. At this time, the ratchet (61) rotates clockwise relative to the special-shaped movable plate (5) while following the movement, and contacts the leftmost ratchet tooth of the ratchet wheel (4), thereby achieving a snap-fit ​​fixation. Step 4: If the inclination angle of the anti-skid base (6) needs to be reduced, the anti-skid base (6) is adjusted counterclockwise; at this time, since the pawl (61) is engaged with the ratchet teeth, and the outer contour of the ratchet teeth of the special-shaped movable disk (5) close to the ratchet wheel (4) exceeds the outer contour of the ratchet teeth, the pawl (61) moves with the special-shaped movable disk (5) and drives the anti-clockwise rotation of the special-shaped movable disk (5) until the anti-skid base (6) is adjusted to a suitable angle; In the fifth step, when the inclination angle of the anti-skid base (6) needs to be increased again, the anti-skid base (6) is adjusted counterclockwise, and the ratchet (61) drives the special-shaped movable disk (5) to rotate counterclockwise while following the movement, until the left end of the arc-shaped limit groove (51) is stopped and matched with the stop protrusion (41), and the special-shaped movable disk (5) is located at the right limit position; at this time, the ratchet (61) moves from the cooperation with the ratchet to the outside of the contour of the special-shaped movable disk (5), and then the adjustment can be carried out according to steps one to three.

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