Universal supporting leg for equipment

Abstract

The utility model relates to the technical field of supporting pieces, in particular to a universal supporting leg for equipment, which comprises a bolt, a locking nut, a resistance strain gauge and a supporting leg stress shell, the locking nut is in threaded connection with the bolt, the bottom end of the bolt is provided with a convex round part, and the bottom surface of the supporting leg stress shell is concavely provided with a cavity. The top surface of the supporting leg stress shell is concavely provided with a stress deformation table towards the direction of the cavity, the stress deformation table is arranged corresponding to the cavity, the top surface of the stress deformation table is concavely provided with a concave circular groove, the convex circular part is matched with the concave circular groove in a concave-convex manner, the resistance strain gauge is attached to the bottom surface of the stress deformation table, and the bolt penetrates through a rack of external equipment in a threaded manner. The locking nut is used for abutting against a rack of external equipment. According to the utility model, not only can equipment be leveled, but also whether the ground is loosened can be monitored, so that the working stability of the equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting parts, in particular to a universal supporting foot for equipment. Background Art

[0002] The support foot is used to support equipment such as machine tools on the ground. Among the existing patents, the Chinese patent document with application number 201620913576.1 discloses a machine tool foot, including a foot pad and an anchor bolt arranged on the foot pad, the lower end of the anchor bolt is provided with a cylindrical head with a reduced radial dimension, the lower end of the cylindrical head is provided with a rounded corner, the upper end of the foot pad is provided with a concave hole platform adapted to the cylindrical head, the concave hole platform is in pressure contact with the cylindrical head and is provided with a concave circle adapted to the rounded corner of the lower end of the cylindrical head, the concave hole platform is connected to the spherical surface of the cylindrical head, and there is no fixed connection between the foot pad and the anchor bolt, but the cylindrical head at the lower end of the anchor bolt is placed on the concave hole platform at the upper end of the foot pad, and is connected to the spherical surface of the cylindrical head through the concave hole platform. Even if the machine tool footing in the patent document is not parallel to the ground, it can be automatically adjusted through the spherical connection between the concave hole table and the cylindrical head, effectively ensuring the parallelism of the machine tool and the processing quality. However, once the ground becomes loose, it cannot be sensed, which will cause the equipment to be unstable. Therefore, the defect is very obvious and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a universal support foot for equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A universal support foot for equipment, comprising a bolt, a locking nut, a resistance strain gauge and a support foot stress shell, the locking nut is threadedly connected to the bolt, a convex portion is provided at the bottom end of the bolt, a cavity is concavely provided on the bottom surface of the support foot stress shell, a force deformation platform is concavely provided on the top surface of the support foot stress shell towards the cavity, the force deformation platform is arranged corresponding to the cavity, a concave circular groove is concavely provided on the top surface of the force deformation platform, the convex circular portion and the concave circular groove are concave-convexly matched, the resistance strain gauge is mounted on the bottom surface of the force deformation platform, the bolt thread passes through a frame of an external device, and the locking nut is used to resist the frame of the external device.

[0006] Furthermore, the universal support foot for the equipment also includes a protective cover, which is installed in the cavity and is used to encapsulate the resistance strain gauge in the cavity.

[0007] Furthermore, a wire-passing hole is provided on the side wall of the support leg stress shell, and the resistance strain gauge is connected with an electric wire, and the electric wire passes through the wire-passing hole.

[0008] Furthermore, a sealing sleeve is arranged in the wire hole, and the sealing sleeve is arranged outside the wire.

[0009] Furthermore, there are two locking nuts, which are respectively located on both sides of the rack of the external device.

[0010] Furthermore, an anti-slip structure is provided on the bottom surface of the support leg stress-bearing shell.

[0011] Furthermore, the anti-skid structure is an anti-skid pattern.

[0012] The beneficial effects of the utility model are as follows: in practical applications, the support foot stress shell with the resistance strain gauge mounted thereon is placed on the ground, then a locking nut is screwed into the screw rod of the bolt, and then the screw rod thread of the bolt is passed through the threaded hole of the frame of the external device, and then the convex part of the bolt is placed on the concave groove, and then the bolt is screwed so that the frame of the device can move relative to the screw rod of the bolt to adjust the device to a horizontal state, and after adjustment, the locking nut is tightened so that the locking nut contacts the frame of the device to prevent the device from loosening. When the stress deformation platform of the support foot stress shell is stressed, stress deformation will occur, thereby driving the resistance strain gauge to undergo tensile deformation, and when the resistance strain gauge undergoes tensile deformation, resistance changes will occur, and when voltage passes through the resistance strain gauge, current changes will occur, and the external current processing circuit amplifies the changed current and outputs and analyzes the stress change of the support foot stress shell, so as to determine whether the ground is loose. When the ground is stable, the output current is constant or within a preset range; when the ground is loose, the force on the support foot stress shell will decrease, the deformation of the stress deformation platform will decrease, and the resistance strain gauge will adaptively deform with the deformation of the stress deformation platform. The output current will change accordingly, and the loose ground can be sensed. At this time, the operator can perform corresponding maintenance work to avoid the problem of equipment instability caused by loose ground. The utility model can not only level the equipment, but also monitor whether the ground is loose, thereby ensuring the working stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is a schematic diagram of the exploded structure of the utility model.

[0016] Description of reference numerals:

[0017] 1. Bolt; 2. Locking nut; 3. Resistance strain gauge; 4. Support foot load shell; 5. Convex part; 6. Cavity; 7. Load deformation platform; 8. Concave groove; 9. Frame; 10. Protective cover; 11. Wire hole; 12. Sealing sleeve; 13. Anti-slip structure; 14. Wires. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0019] like Figures 1 to 3 As shown, the utility model provides a universal support foot for equipment, which includes a bolt 1, a locking nut 2, a resistance strain gauge 3 and a support foot force shell 4. The locking nut 2 is threadedly connected to the bolt 1, and a convex portion 5 is provided at the bottom end of the bolt 1. The bottom surface of the support foot force shell 4 is concavely provided with a cavity 6, and the top surface of the support foot force shell 4 is concavely provided with a force deformation platform 7 facing the cavity 6. The force deformation platform 7 is arranged corresponding to the cavity 6, and a concave circular groove 8 is concavely provided on the top surface of the force deformation platform 7. The convex circular portion 5 and the concave circular groove 8 are concave-convexly matched, and the resistance strain gauge 3 is mounted on the bottom surface of the force deformation platform 7. The bolt 1 thread passes through the frame 9 of the external equipment, and the locking nut 2 is used to resist the frame 9 of the external equipment.

[0020] In practical applications, the support foot stress shell 4 with the resistance strain gauge 3 mounted thereon is placed on the ground, then a locking nut 2 is screwed into the screw of the bolt 1, and then the screw thread of the bolt 1 is passed through the threaded hole of the rack 9 of the external device, and then the convex part 5 of the bolt 1 is placed on the concave groove 8, and then the bolt 1 is screwed so that the rack 9 of the device can move relative to the screw of the bolt 1 to adjust the device to a horizontal state. After adjustment, the locking nut 2 is tightened so that the locking nut 2 contacts the rack 9 of the device to prevent the device from loosening. When the stress deformation platform 7 of the support foot stress shell 4 is stressed, stress deformation will occur, thereby driving the resistance strain gauge 3 to undergo tensile deformation. When the resistance strain gauge 3 undergoes tensile deformation, resistance changes will occur. When voltage passes through the resistance strain gauge 3, current changes will occur. The external current processing circuit amplifies the changed current and outputs and analyzes the stress change of the support foot stress shell 4, so as to determine whether the ground is loose. When the ground is stable, the output current is constant or within a preset range; when the ground becomes loose, the force on the support foot stress shell 4 will decrease, the deformation of the stress deformation platform 7 will become smaller, and the resistance strain gauge 3 will adaptively deform along with the deformation of the stress deformation platform 7. The output current will change accordingly, and the loosening of the ground can be sensed. At this time, the operator can perform corresponding maintenance work to avoid equipment instability caused by loose ground. The utility model can not only level the equipment, but also monitor whether the ground is loose, thereby ensuring the working stability of the equipment. The utility model is particularly suitable for equipment with stability, levelness and high precision requirements.

[0021] In this embodiment, the universal support foot for the equipment further includes a protective cover 10 detachably connected to the support foot force shell 4, the protective cover 10 is installed in the cavity 6, and the protective cover 10 is used to encapsulate the resistance strain gauge 3 in the cavity 6. The protective cover 10 protects the resistance strain gauge 3 in the cavity 6.

[0022] In this embodiment, the side wall of the support leg stress shell 4 is provided with a wire hole 11, and the resistance strain gauge 3 is connected to the wire 14, and the wire 14 passes through the wire hole 11. This structural design makes the structure of the wire 14 and the support leg stress shell 4 compact, which is convenient for connecting the resistance strain gauge 3 with an external machine, and the wire hole 11 plays a role in positioning the wire 14.

[0023] In this embodiment, a sealing sleeve 12 is arranged in the wire hole 11, and the sealing sleeve 12 is sleeved outside the wire 14. The sealing sleeve 12 can seal the connection between the wire 14 and the wire hole 11, and the sealing effect is good.

[0024] In this embodiment, there are two locking nuts 2, which are respectively located on both sides of the external device frame 9. After the two locking nuts 2 are tightened, the frame 9 of the external device is clamped, and the device is not easy to loosen during long-term use, thereby improving the working stability of the external device.

[0025] In this embodiment, the bottom surface of the support leg bearing shell 4 is provided with an anti-skid structure 13; specifically, the anti-skid structure 13 is an anti-skid pattern. The provision of the anti-skid structure 13 increases the friction resistance between the support leg bearing shell 4 and the ground, achieving an anti-skid effect.

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A universal support foot for equipment, characterized in that: The invention comprises a bolt (1), a locking nut (2), a resistance strain gauge (3) and a support foot bearing shell (4); the locking nut (2) is threadedly connected to the bolt (1); a convex portion (5) is arranged at the bottom end of the bolt (1); a cavity (6) is concavely arranged on the bottom surface of the support foot bearing shell (4); a force-bearing deformation platform (7) is concavely arranged on the top surface of the support foot bearing shell (4) in the direction of the cavity (6); the force-bearing deformation platform (7) is arranged correspondingly to the cavity (6); a concave circular groove (8) is concavely arranged on the top surface of the force-bearing deformation platform (7); the convex portion (5) and the concave circular groove (8) are concave-convexly matched; the resistance strain gauge (3) is mounted on the bottom surface of the force-bearing deformation platform (7); the bolt (1) thread passes through a frame (9) of an external device; and the locking nut (2) is used to resist the frame (9) of the external device.

2. The universal support foot for equipment according to claim 1, characterized in that: The universal support foot for the equipment also includes a protective cover (10), which is installed in the cavity (6). The protective cover (10) is used to encapsulate the resistance strain gauge (3) in the cavity (6).

3. The universal support foot for equipment according to claim 1, characterized in that: A wire passing hole (11) is provided on the side wall of the support foot stress shell (4), the resistance strain gauge (3) is connected to a wire (14), and the wire (14) passes through the wire passing hole (11).

4. The universal support foot for equipment according to claim 3, characterized in that: A sealing sleeve (12) is arranged in the wire hole (11), and the sealing sleeve (12) is sleeved outside the wire (14).

5. The universal support foot for equipment according to claim 1, characterized in that: The number of the locking nuts (2) is two, and the two locking nuts (2) are respectively located on both sides of the frame (9) of the external device.

6. The universal support foot for equipment according to claim 1, characterized in that: The bottom surface of the support foot load-bearing shell (4) is provided with an anti-slip structure (13).

7. The universal support foot for equipment according to claim 6, characterized in that: The anti-skid structure (13) is an anti-skid pattern.

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