Screw nut

Abstract

The utility model relates to the technical field of mechanical design, and discloses a screw nut which comprises a bottom plate, a bottom column is arranged in the middle of the top wall of the bottom plate, a first connecting rod is arranged in the bottom column, local threads are arranged on the upper middle portion of the outer wall of the first connecting rod, and a two-way connecting plug is arranged on the top of the first connecting rod. A first threaded groove is formed in the inner wall of the two-way connecting plug, the two-way connecting plug is in threaded connection with the first connecting rod through the first threaded groove in the lower end, the two-way connecting plug is in threaded connection with a second connecting rod through the first threaded groove in the upper end, and a first connecting rod is fixedly connected to the top of the outer side of the second connecting rod. According to the utility model, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are matched with the connecting rod to combine the bidirectional connecting plug, the bidirectional threaded head and the mushroom rod, so that the mushroom rod is suitable for being matched and used under various conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical design, in particular to a screw nut. Background Art

[0002] Screws and nuts are commonly used parts in mechanical connections, and are also indispensable connecting elements in mechanical manufacturing and assembly. Their function is to achieve reliable connection, disassembly and adjustment between parts, and they are an important guarantee for the normal operation of mechanical equipment.

[0003] After searching, the Chinese patent announcement number is: CN208686770U, which discloses a screw nut assembly, characterized in that it includes a screw rod, a bolt and a nut, the screw rod has a cylindrical portion, the cylindrical portion has a thread, the bottom end of the peripheral wall of the cylindrical portion is inwardly connected to an annular bottom, the annular bottom is provided with a through hole, the bolt has a nut and a threaded rod, the threaded rod is provided with an external thread, the threaded rod can pass through the through hole and move, the diameter of the nut is greater than the inner diameter of the through hole and smaller than the inner diameter of the cylindrical portion, the nut is a hexagonal prism structure, and the nut is provided with a threaded hole with an inverted convex cross section, and the cylindrical portion and the threaded rod can be threadedly connected to the threaded hole one above and one below. The utility model can connect threaded holes of different sizes, is flexible to use, easy to assemble, and has a good use effect, but it can only be connected with an external threaded hole by threading, and its scope of use is limited. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a screw nut, which aims to improve the problem that the prior art can only be threadedly connected to an external threaded hole and has a limited scope of use.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a screw nut, comprising a bottom plate, a bottom column is arranged in the middle of the top wall of the bottom plate, a first connecting rod is arranged inside the bottom column, a partial thread is arranged in the middle and upper part of the outer wall of the first connecting rod, a two-way plug joint is arranged on the top of the first connecting rod, a first thread groove is opened on the inner wall of the two-way plug joint, the two-way plug joint is threadedly connected to the first connecting rod through the first thread groove at the lower end, the two-way plug joint is threadedly connected to the second connecting rod through the first thread groove at the upper end, and the first connecting rod is fixedly connected to the outer top of the second connecting rod. The outer wall of the first connecting rod is threadedly connected with a two-way threaded head, the top of the inner wall of the two-way threaded head is threadedly connected with the second connecting rod, the inner wall of the second connecting rod is fixedly connected with the third connecting rod, the inner wall of the third connecting rod is threadedly connected with a No. 3 mushroom rod, the left side of the top wall of the bottom plate is fixedly connected with the first supporting column, the inner wall of the first supporting column is threadedly connected with a No. 4 mushroom rod, the right side of the top of the bottom plate is fixedly connected with the second supporting column, the top wall of the second support column is fixedly connected with the fourth connecting rod, the outer wall of the fourth connecting rod is threadedly connected with the No. 5 mushroom rod, and a separation mechanism is provided inside the bottom column.

[0006] As a further description of the above technical solution:

[0007] The separation mechanism comprises an external thread groove, which is arranged on the inner wall of the base column. The bottom end of the outer wall of the first connecting rod is provided with a partial external thread, and the base column is threadedly connected with the base column via the partial external thread.

[0008] As a further description of the above technical solution:

[0009] The tops of the outer walls of the No. 3 mushroom rod, the No. 4 mushroom rod and the No. 5 mushroom rod are all provided with a plurality of finger grooves at equal intervals.

[0010] As a further description of the above technical solution:

[0011] The upper and lower ends of the outer walls of the two-way plug connector and the two-way threaded head are both provided with friction blocks.

[0012] As a further description of the above technical solution:

[0013] The middle parts of the outer walls of the bidirectional plug connector and the bidirectional threaded head are both fixedly connected with a dividing plate.

[0014] As a further description of the above technical solution:

[0015] A placing tray is fixedly connected to the bottom wall of the bottom plate.

[0016] As a further description of the above technical solution:

[0017] Hand grooves are provided on the front and rear sides of the inner side of the placing plate.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, the two-way plug connector, the two-way threaded head and the mushroom rod are combined by the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod in combination with the connecting rod, which is suitable for use in various situations and has a wide range of uses.

[0020] In the utility model, an external thread is provided at the bottom of the outer wall of the first connecting rod 9, and an external thread groove is opened on the inner wall of the bottom column. The bottom column and the first connecting rod can be fixed or separated through the threaded connection of the external thread and the external thread groove. The separation can be carried out without using a mushroom rod to reduce the used space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a screw and nut proposed by the utility model;

[0022] Figure 2 A schematic diagram of the connection relationship of the bidirectional plug connector proposed in the utility model;

[0023] Figure 3 A schematic diagram of the connection relationship of the bidirectional thread head proposed in the utility model;

[0024] Figure 4 This is a schematic diagram of the connection relationship of the No. 3 mushroom rod proposed in the utility model;

[0025] Figure 5 This is a schematic diagram of the connection relationship of the No. 4 mushroom rod proposed in the utility model;

[0026] Figure 6 This is a schematic diagram of the connection relationship of the No. 5 mushroom rod proposed in the utility model;

[0027] Figure 7 This is an enlarged schematic diagram of the local structure proposed by the utility model.

[0028] Legend:

[0029] 1. Bottom plate; 2. Separation mechanism; 201. Partial external thread; 202. External thread groove; 3. Two-way plug connector; 4. Two-way thread head; 5. No. 3 mushroom rod; 6. No. 4 mushroom rod; 7. No. 5 mushroom rod; 8. Bottom column; 9. First connecting rod; 10. Second connecting rod; 11. First connecting rod; 12. Second connecting rod; 13. Third connecting rod; 14. First supporting column; 15. Second supporting column; 16. Fourth connecting rod; 17. Placement plate; 18. Hand groove; 19. Dividing plate; 20. Friction block; 21. Partial thread; 22. First thread groove; 23. Finger groove. DETAILED DESCRIPTION

[0030] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0031] Reference Figure 1 - Figure 6 , an embodiment of the utility model: a screw nut, comprising a bottom plate 1, a bottom column 8 is arranged in the middle of the top wall of the bottom plate 1, a first connecting rod 9 is arranged inside the bottom column 8, a local thread 21 is arranged in the middle and upper part of the outer wall of the first connecting rod 9, a two-way plug joint 3 is arranged on the top of the first connecting rod 9, a first thread groove 22 is opened on the inner wall of the two-way plug joint 3, the two-way plug joint 3 is threadedly connected to the first connecting rod 9 through the first thread groove 22 at the lower end, the two-way plug joint 3 is threadedly connected to the second connecting rod 10 through the first thread groove 22 at the upper end, the outer top of the second connecting rod 10 is fixedly connected to the first connecting rod 11, the outer wall of the first connecting rod 11 is threadedly connected to the two-way thread head 4, the two-way The top of the inner wall of the threaded head 4 is threadedly connected with a second connecting rod 12, the inner wall of the second connecting rod 12 is fixedly connected with a third connecting rod 13, the inner wall of the third connecting rod 13 is threadedly connected with a number three mushroom rod 5, the left side of the top wall of the bottom plate 1 is fixedly connected with a first supporting column 14, the inner wall of the first supporting column 14 is threadedly connected with a number four mushroom rod 6, the right side of the top of the bottom plate 1 is fixedly connected with a second supporting column 15, the top wall of the second supporting column 15 is fixedly connected with a fourth connecting rod 16, the outer wall of the fourth connecting rod 16 is threadedly connected with a number five mushroom rod 7, and a separation mechanism 2 is arranged inside the bottom column 8; the top of the outer walls of the number three mushroom rod 5, the number four mushroom rod 6 and the number five mushroom rod 7 are all equidistantly provided with a plurality of finger grooves 23;

[0032] Specifically, a bottom column 8 is fixedly connected to the top of the bottom plate 1, and the top of the bottom column 8 is threadedly connected to the first connecting rod 9, the second connecting rod 10, the third connecting rod 13 and the fourth connecting rod 16 with the first connecting rod 11 and the second connecting rod 12 to combine the two-way plug joint 3, the two-way threaded head 4 and the three mushroom rods together. Each screw and nut can be connected to different objects, thereby meeting most usage requirements.

[0033] Reference Figure 1 and Figure 7 , the separation mechanism 2 includes an external thread groove 202, the external thread groove 202 is opened on the inner wall of the bottom column 8, the bottom end of the outer wall of the first connecting rod 9 is provided with a partial external thread 201, and the bottom column 8 is threadedly connected to the bottom column 8 through the partial external thread 201;

[0034] Specifically, by setting a local external thread 201 on the outer wall of the first connecting rod 9 and opening an external thread groove 202 on the inner wall of the base column 8, the base column 8 can be connected to the first connecting rod 9 through the threaded connection relationship between the local external thread 201 and the external thread groove 202, and the upper and lower ends can be connected or separated, thereby improving the practicality of the device.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The upper and lower ends of the outer walls of the two-way plug connector 3 and the two-way threaded head 4 are both provided with friction blocks 20; the middle parts of the outer walls of the two-way plug connector 3 and the two-way threaded head 4 are both fixedly connected with a dividing plate 19; the bottom wall of the bottom plate 1 is fixedly connected with a placement plate 17; the front and rear sides of the placement plate 17 are both provided with hand grooves 18;

[0036] Specifically, by arranging friction blocks 20 on the outer walls of the two-way plug connector 3 and the two-way threaded head 4, the friction force can be increased, which is convenient for the operator to use; by arranging a dividing plate 19, the operator can better determine the position relationship; by arranging a placement plate 17 at the bottom of the base plate 1, and opening a hand groove 18 inside the placement plate 17, the placement plate 17 can facilitate stabilizing the device on the ground, and at the same time, the hand groove 18 can facilitate the operator to carry it, thereby improving the convenience of the device.

[0037] Working principle: a bottom column 8 is fixedly connected to the top of the bottom plate 1, a first connecting rod 9 is arranged on the inner top wall of the bottom column 8, a first thread is arranged on the top of the outer wall of the first connecting rod 9, a first thread is arranged on the inner wall of the two-way plug joint 3, the two-way plug joint 3 can be threadedly connected to the first connecting rod 9 through the first thread groove 22, and the top of the two-way plug joint 3 is connected to the second connecting rod 10 through the first thread groove 22, both ends of the two-way plug joint 3 are two-way plug holes, which can be connected to mushroom rods or screws in both directions, the first connecting rod 11 is threadedly connected to the top of the outer wall of the second connecting rod 10, the outer wall of the first connecting rod 11 is connected to the two-way threaded head 4, the inner wall of the two-way threaded head 4 is connected to the second connecting rod 12, both ends of the two-way threaded head 4 can be connected to the internal thread interface, the third connecting rod 13 is connected to the top of the second connecting rod 10, the third connecting rod 13 is connected to the number three mushroom rod 5 through the first thread groove 22, the first support column 14 is fixedly connected to the left side of the top of the bottom plate 1, and the top of the inner wall of the first support column 14 is threadedly connected A No. 4 mushroom rod 6 is connected, and the ends of the No. 3 mushroom rod 5 and the No. 4 mushroom rod 6 can be connected to the internal threaded opening. A fourth connecting rod 16 is connected to the right side of the top of the bottom plate 1, and a No. 5 mushroom rod 7 is threadedly connected to the outer wall of the fourth connecting rod 16. The No. 5 mushroom rod 7 can be connected to the rod end or screw of the mushroom rod. At the same time, a plurality of finger grooves 23 are provided on the top of the outer walls of the three mushroom rods to facilitate operators to tighten screws and nuts. Friction blocks 20 are provided at the upper and lower ends of the outer walls of the two-way plug connector 3 and the two-way threaded head 4. The friction force is improved by the friction blocks 20, which is convenient for operators to use. A placement tray 17 is provided at the bottom of the bottom plate 1, and two hand grooves 18 are provided on the front and rear sides of the inner side of the placement tray 17 to facilitate operators to carry it. An external thread groove 202 is provided on the inner wall of the bottom column 8, and a partial external thread 201 is provided at the bottom end of the outer wall of the first connecting rod 9. The first connecting rod 9 is threadedly connected to the bottom column 8 through the partial external thread 201 and the external thread groove 202. When the mushroom rods are not needed, the two can be separated, thereby reducing the usage space.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw nut, comprising a base plate (1), characterized in that: A bottom column (8) is provided at the middle of the top wall of the bottom plate (1), a first connecting rod (9) is provided inside the bottom column (8), a local thread (21) is provided at the middle and upper part of the outer wall of the first connecting rod (9), a two-way plug joint (3) is provided at the top of the first connecting rod (9), a first thread groove (22) is provided on the inner wall of the two-way plug joint (3), the two-way plug joint (3) is threadedly connected to the first connecting rod (9) via the first thread groove (22) at the lower end, the two-way plug joint (3) is threadedly connected to the second connecting rod (10) via the first thread groove (22) at the upper end, the outer top of the second connecting rod (10) is fixedly connected to the first connecting rod (11), the outer wall of the first connecting rod (11) is threadedly connected to the two-way thread groove (22) at the upper end, and the first connecting rod (11) is threadedly connected to the outer wall of the two-way plug joint (3). A head (4) is provided, wherein the top of the inner wall of the bidirectional threaded head (4) is threadedly connected to a second connecting rod (12), the inner wall of the second connecting rod (12) is fixedly connected to a third connecting rod (13), the inner wall of the third connecting rod (13) is threadedly connected to a No. 3 mushroom rod (5), the left side of the top wall of the bottom plate (1) is fixedly connected to a first supporting column (14), the inner wall of the first supporting column (14) is threadedly connected to a No. 4 mushroom rod (6), the right side of the top of the bottom plate (1) is fixedly connected to a second supporting column (15), the top wall of the second supporting column (15) is fixedly connected to a fourth connecting rod (16), the outer wall of the fourth connecting rod (16) is threadedly connected to a No. 5 mushroom rod (7), and a separation mechanism (2) is provided inside the bottom column (8).

2. A screw nut according to claim 1, characterized in that: The separation mechanism (2) comprises an external thread groove (202), the external thread groove (202) being formed on the inner wall of the base column (8), the lower end of the outer wall of the first connecting rod (9) being provided with a partial external thread (201), and the base column (8) being threadedly connected to the base column (8) via the partial external thread (201).

3. A screw nut according to claim 1, characterized in that: The tops of the outer walls of the No. 3 mushroom rod (5), the No. 4 mushroom rod (6) and the No. 5 mushroom rod (7) are all provided with a plurality of finger grooves (23) at equal intervals.

4. A screw nut according to claim 1, characterized in that: Friction blocks (20) are provided at the upper and lower ends of the outer walls of the bidirectional plug connector (3) and the bidirectional threaded head (4).

5. A screw nut according to claim 1, characterized in that: A dividing plate (19) is fixedly connected to the middle of the outer walls of the bidirectional plug connector (3) and the bidirectional threaded head (4).

6. A screw nut according to claim 1, characterized in that: A placement tray (17) is fixedly connected to the bottom wall of the bottom plate (1).

7. A screw nut according to claim 6, characterized in that: Hand grooves (18) are provided on the front and rear sides of the placement plate (17).

Images