Foot cup

Abstract

The utility model relates to the technical field of supporting devices, in particular to a foot cup which comprises a base, a foot cup body and a supporting device. The bottom pad is mounted at the bottom end of the interior of the mounting cavity; the universal ball head is mounted in the mounting cavity and is positioned on the upper surface of the bottom pad; the thrust ball bearing is fixedly mounted in the universal ball head, and the thrust ball bearing is fixedly mounted in the universal ball head; and a screw. The variable-diameter rod and the thrust ball bearing are arranged between the base and the screw rod, the screw rod is in contact with the base through the variable-diameter rod, sliding friction of the contact face of the base and the variable-diameter rod is changed into rolling friction, friction force between the base and the variable-diameter rod is reduced, and therefore force needed by rotation of the screw rod is reduced; meanwhile, the check ring is clamped in the clamping groove, the thrust ball bearing and the universal ball head can be installed and clamped on the variable-diameter rod, the screw rod and the base can be directly assembled through the variable-diameter rod, the riveting technology is omitted, and therefore equipment needed by the manufacturing process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting devices, in particular to a foot cup. Background Art

[0002] The foot cup is usually composed of a screw, a nut and a base. The base is connected to the screw, and the screw is connected to the equipment with a threaded hole. The height of the equipment can be adjusted by rotating the thread. It is a commonly used mechanical component. It is mainly used in general equipment, including food machinery, household appliances, printing machinery, textile machinery, packaging machinery, medical equipment, petroleum and petrochemical equipment, etc.

[0003] When the foot cup in the prior art is used on heavier equipment, the contact area between the screw and the base is large and the contact surface is subjected to great force, resulting in great friction between the screw and the base, and thus greater force is required to rotate the screw. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a foot cup to solve the technical problems that the contact area between the existing foot cup screw and the base is large and the contact surface is subjected to large force, and a large force is required to rotate the screw.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A foot cup, comprising:

[0007] A base, wherein a mounting cavity is provided in the middle of the top of the base;

[0008] A bottom pad installed at the inner bottom end of the installation cavity;

[0009] A universal ball head, the universal ball head is installed inside the installation cavity and located on the upper surface of the bottom pad;

[0010] A thrust ball bearing, wherein the thrust ball bearing is fixedly mounted inside the universal ball head;

[0011] A screw rod is arranged above the thrust ball bearing, a reducing rod is fixedly connected to the bottom of the screw rod, a nut is sleeved on the upper end of the reducing rod, and an end of the reducing rod away from the screw rod sequentially penetrates the middle part of the thrust ball bearing and the middle part of the universal ball head and extends to the inside of the bottom pad.

[0012] Furthermore, the upper end of the base is in a truncated cone shape, and the cross-section of the installation cavity is in a semicircular shape.

[0013] Furthermore, an annular groove is provided at the bottom of the base, and a plurality of ribs are fixedly connected inside the annular groove, and the plurality of ribs are distributed in an annular array about the central axis of the base.

[0014] Furthermore, the bottom of the base pad is arranged in an arc shape and is adapted to the installation cavity, and a step groove is provided in the middle of the top end of the base pad.

[0015] Furthermore, the diameter of the reducing rod is smaller than the diameter of the screw rod, and the extended end of the reducing rod is located inside the step groove.

[0016] Furthermore, a slot is provided on the side surface of the lower end of the reducing rod, and a retaining ring is installed inside the slot.

[0017] Furthermore, the retaining ring is located at the inner upper end of the step groove, and the lower surface of the retaining ring is in contact with the step surface of the step groove.

[0018] Furthermore, a boss adapted to the step groove is provided at the bottom of the universal ball head, and the end of the boss away from the universal ball head is located at the inner upper end of the step groove, the upper surface of the universal ball head is higher than the upper surface of the base, and the universal ball head is interference fit with the installation cavity.

[0019] Furthermore, the upper surface of the thrust ball bearing is higher than the upper surface of the universal ball head.

[0020] Furthermore, the lower surface of the nut contacts the upper surface of the thrust ball bearing.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a reducing rod and a thrust ball bearing between the base and the screw rod, and the screw rod contacts the base through the reducing rod, so that the contact surface between the base and the reducing rod changes from sliding friction to rolling friction, reducing the friction between the two, thereby reducing the force required for the screw rod to rotate; at the same time, a retaining ring is clamped in the clamping groove, and the thrust ball bearing and the universal ball head can be clamped on the reducing rod, so that the screw rod can be directly assembled with the base through the reducing rod, omitting the riveting process, thereby reducing the equipment required for the process technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0027] Figure 4 The utility model is a structural schematic diagram of the connection between the screw rod, the nut and the reducer rod.

[0028] Explanation of the markings in the figure: 1. Base; 2. Screw; 3. Nut; 4. Reducing rod; 5. Mounting cavity; 6. Bottom gasket; 7. Step groove; 8. Retaining ring; 9. Universal ball head; 10. Thrust ball bearing; 11. Slot; 12. Annular groove; 13. Rib. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0031] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0032] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] See also Figure 1 , Figure 2 and Figure 3As shown, a foot cup comprises: a base 1, a mounting cavity 5 is provided in the middle of the top of the base 1; a bottom pad 6, the bottom pad 6 is installed at the bottom end of the mounting cavity 5; a universal ball head 9, the universal ball head 9 is installed in the mounting cavity 5 and is located on the upper surface of the bottom pad 6; a thrust ball bearing 10, the thrust ball bearing 10 is fixedly installed in the interior of the universal ball head 9; a screw 2, the screw 2 is arranged above the thrust ball bearing 10, a reducing rod 4 is fixedly connected to the bottom of the screw 2, a nut 3 is sleeved on the upper end of the reducing rod 4, and the end of the reducing rod 4 away from the screw 2 passes through the middle of the thrust ball bearing 10 and the middle of the universal ball head 9 in sequence and extends to the interior of the bottom pad 6; by arranging the thrust ball bearing 10 between the base 1 and the screw 2, the contact surface between the base 1 and the screw 2 is transformed from sliding friction to rolling friction, thereby reducing the friction between the two, thereby reducing the force required for the rotation of the screw 2.

[0034] During assembly, place the base gasket 6 into the installation cavity 5, place the thrust ball bearing 10 into the cavity of the universal ball head 9, insert the screw 2 into the center holes of the thrust ball bearing 10 and the universal ball head 9 through the bottom end of the reducer 4, install the retaining ring 8 into the slot 11, and finally press the universal ball head 9 into the installation cavity 5 on the base 1; when in use, use a wrench to twist the nut 3 to adjust the height of the device connected to the screw 2 by thread.

[0035] Specifically, Figure 2 and Figure 3 As shown, the upper end of the base 1 is in a truncated cone shape, and the cross-section of the mounting cavity 5 is semicircular; the upper end of the base 1 can avoid contact with the equipment to form an air gap, while increasing the overall stability. The mounting cavity 5 provides an installation environment for the bottom pad 6 and the universal ball head 9, so that the universal ball head 9 can be installed firmly.

[0036] Specifically, Figure 1 As shown, an annular groove 12 is provided at the bottom of the base 1, and a plurality of ribs 13 are fixedly connected inside the annular groove 12. The plurality of ribs 13 are distributed in an annular array about the central axis of the base 1. The annular groove 12 can reduce the weight of the base 1, and the ribs 13 increase the strength of the base 1.

[0037] Specifically, Figure 2 and Figure 3 As shown, the bottom of the bottom pad 6 is arc-shaped and adapted to the installation cavity 5, and a step groove 7 is provided in the middle of the top of the bottom pad 6; the bottom pad 6 can separate the universal ball head 9 and the reducer rod 4 from the inner bottom wall of the installation cavity 5 to reduce wear of the two.

[0038] Specifically, Figure 2 , Figure 3 and Figure 4As shown, the diameter of the reducing rod 4 is smaller than the diameter of the screw rod 2, and the extended end of the reducing rod 4 is located inside the step groove 7; this can further reduce the contact area between the screw rod 2 and the base 1, and reduce the friction between the screw rod 2 and the base 1.

[0039] Specifically, Figure 2 and Figure 4 As shown, a slot 11 is provided on the side of the lower end of the reducing rod 4, and a retaining ring 8 is installed inside the slot 11; the retaining ring 8 is inserted into the slot 11 to limit the axial movement of the thrust ball bearing 10 and the universal ball head 9. At the same time, the retaining ring 8 is inserted into the slot 11, so that the thrust ball bearing 10 and the universal ball head 9 can be mounted on the reducing rod 4, so that the screw rod 2 can be directly assembled with the base 1 through the reducing rod 4, omitting the riveting process, thereby reducing the equipment required for the process.

[0040] Specifically, Figure 2 As shown, the retaining ring 8 is located at the inner upper end of the step groove 7, and the lower surface of the retaining ring 8 is in contact with the step surface of the step groove 7; the bottom pad 6 can provide support for the retaining ring 8, which is convenient for the installation of the retaining ring 8.

[0041] Specifically, Figure 2 As shown, a boss matched with the step groove 7 is provided at the bottom of the universal ball head 9, and the end of the boss away from the universal ball head 9 is located at the inner upper end of the step groove 7. The upper surface of the universal ball head 9 is higher than the upper surface of the base 1, and the universal ball head 9 and the mounting cavity 5 are in interference fit; the boss and the step groove 7 are matched to enable the universal ball head 9 to be assembled together with the bottom pad 6 and the base 1.

[0042] Specifically, Figure 2 As shown, the upper surface of the thrust ball bearing 10 is higher than the upper surface of the universal ball head 9 , which can prevent the nut 3 from contacting the base 1 .

[0043] Specifically, Figure 1 and Figure 2 As shown, the lower surface of the nut 3 contacts the upper surface of the thrust ball bearing 10 , which can prevent the nut 3 from contacting the base 1 .

[0044] In summary, compared with the prior art, the foot cup has at least the following beneficial effects: the utility model provides a reducing rod 4 and a thrust ball bearing 10 between the base 1 and the screw 2, and the screw 2 contacts the base 1 through the reducing rod 4, so that the contact surface between the base 1 and the reducing rod 4 is transformed from sliding friction to rolling friction, reducing the friction between the two, thereby reducing the force required for the rotation of the screw 2; at the same time, the retaining ring 8 is clamped in the groove 11, and the thrust ball bearing 10 and the universal ball head 9 can be clamped on the reducing rod 4, so that the screw 2 can be directly assembled with the base 1 through the reducing rod 4, omitting the riveting process, thereby reducing the equipment required for the process.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A foot cup, characterized in that: include: A base (1), wherein a mounting cavity (5) is provided in the middle of the top end of the base (1); A bottom pad (6), the bottom pad (6) being installed at the inner bottom end of the installation cavity (5); A universal ball head (9), the universal ball head (9) being installed inside the installation cavity (5) and located on the upper surface of the bottom pad (6); A thrust ball bearing (10), wherein the thrust ball bearing (10) is fixedly mounted inside the universal ball head (9); A screw rod (2), wherein the screw rod (2) is arranged above the thrust ball bearing (10), and a reducing rod (4) is fixedly connected to the bottom of the screw rod (2), and a nut (3) is sleeved on the upper end of the reducing rod (4), and the end of the reducing rod (4) away from the screw rod (2) sequentially penetrates the middle part of the thrust ball bearing (10) and the middle part of the universal ball head (9) and extends to the inside of the bottom pad (6).

2. A foot cup according to claim 1, characterized in that: The upper end of the base (1) is in the shape of a truncated cone, and the cross section of the mounting cavity (5) is in the shape of a semicircle.

3. A foot cup according to claim 1, characterized in that: The bottom of the base (1) is provided with an annular groove (12), the interior of the annular groove (12) is fixedly connected with a plurality of ribs (13), and the plurality of ribs (13) are distributed in an annular array about the central axis of the base (1).

4. A foot cup according to claim 1, characterized in that: The bottom of the base pad (6) is arranged in an arc shape and is adapted to the installation cavity (5), and a step groove (7) is provided in the middle of the top end of the base pad (6).

5. A foot cup according to claim 1, characterized in that: The diameter of the reducing rod (4) is smaller than the diameter of the screw rod (2), and the extended end of the reducing rod (4) is located inside the step groove (7).

6. A foot cup according to claim 5, characterized in that: A clamping groove (11) is provided on the side surface of the lower end of the diameter-changing rod (4), and a retaining ring (8) is installed inside the clamping groove (11).

7. A foot cup according to claim 6, characterized in that: The retaining ring (8) is located at the inner upper end of the step groove (7), and the lower surface of the retaining ring (8) is in contact with the step surface of the step groove (7).

8. The foot cup according to claim 1, characterized in that: The bottom of the universal ball head (9) is provided with a boss matched with the step groove (7), and the end of the boss away from the universal ball head (9) is located at the inner upper end of the step groove (7), the upper surface of the universal ball head (9) is higher than the upper surface of the base (1), and the universal ball head (9) and the installation cavity (5) are in interference fit.

9. The foot cup according to claim 1, characterized in that: The upper surface of the thrust ball bearing (10) is higher than the upper surface of the universal ball head (9).

10. The foot cup according to claim 1, characterized in that: The lower surface of the nut (3) contacts the upper surface of the thrust ball bearing (10).

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