Anti-falling hole plug structure

Abstract

The utility model discloses an anti-falling hole plug structure, and belongs to the technical field of hole plugs. Comprising a chassis and a sleeve. The chassis part comprises a chassis body, a stand column and a shifting block, and the stand column is fixedly arranged in the center of the chassis; the sleeve body comprises an alloy disc, a sleeve, a rubber sleeve and rubber rings, the sleeve is fixedly arranged in the center of the alloy disc, the sleeve is fixedly sleeved with the rubber sleeve, the outer diameter of the rubber sleeve is equal to the diameter of a plug hole, and the rubber sleeve is fixedly sleeved with at least two rubber rings; wherein the alloy disc and the sleeve are fixedly arranged on the periphery of the stand column in a sleeving mode, and the bottom face of the alloy disc is attached to the top face of the disc body in a sealed mode. According to the anti-falling hole plug structure, the situation that the anti-falling hole plug structure falls off from the plug hole after being used for a period of time can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hole plugs, in particular to an anti-falling hole plug structure. Background Art

[0002] The purpose of metal casting surface treatment is to meet the product's corrosion resistance, wear resistance, decoration or other special functional requirements. The more commonly used surface treatment methods for metal castings are mechanical grinding, chemical treatment and surface heat treatment, and the most commonly used are blackening, phosphating, sandblasting, electroplating, anodizing, etc.

[0003] When metal castings are powder sprayed or electrophoresed, if the holes or their surrounding areas on the metal castings involve assembly or other functional requirements, powder spraying or electrophoresis is not allowed. The holes and the surrounding areas need to be protected, usually with rubber plugs. The size of the protective hole rubber plugs on the market is the same as the hole size. If the rubber plug is too large, it will not fit into the hole. If it is too small, it will easily fall off or the electrophoresis liquid will flow into the hole.

[0004] This type of rubber plug is fine in the initial use, but after a period of use, the rubber plug is affected by heat and acid and alkali liquid, which will cause the rubber plug to age, lose elasticity, and reduce its diameter. When used again, the rubber plug will fall off midway, resulting in protection failure, and even product rework and scrapping. If the rubber plug is replaced frequently, it will lead to an increase in production costs, and discarded rubber plugs are also a waste of resources. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-dropping hole plug structure, aiming to at least solve the technical problems existing in the above-mentioned prior art. To achieve the above-mentioned purpose, the technical solutions adopted by the utility model are as follows:

[0006] An anti-drop hole plug structure, comprising:

[0007] A chassis component, the chassis component comprises a chassis body, a column and a dial head, the column is fixedly arranged at the center of the chassis, and the dial head is fixedly arranged on the top of the column;

[0008] The sleeve body comprises an alloy disc, a sleeve, a rubber sleeve and a rubber ring. The sleeve is fixedly arranged at the center of the alloy disc, a rubber sleeve is fixedly arranged outside the sleeve, the outer diameter of the rubber sleeve is equal to the diameter of the plug hole, and at least two rubber rings are fixedly arranged outside the rubber sleeve;

[0009] The alloy disk and the sleeve are fixedly sleeved on the outer periphery of the column, and the bottom surface of the alloy disk is sealed and attached to the top surface of the disk body.

[0010] As a further solution of the utility model: the outer peripheral surface of the dial head is coplanar with the outer peripheral surface of the rubber sleeve.

[0011] As a further solution of the utility model: two rubber rings are fixedly sleeved outside the rubber sleeve, and the outer diameter of the rubber ring is 0.3mm-0.5mm larger than the outer diameter of the rubber sleeve.

[0012] As a further solution of the utility model: three rubber rings are fixedly mounted outside the rubber sleeve, a plurality of connecting ribs are arranged between two adjacent rubber rings, the inner side surfaces of the connecting ribs are fixedly connected to the outer peripheral wall of the rubber sleeve, and the outer diameter of the rubber rings is 0.3mm-0.5mm larger than the outer diameter of the rubber sleeve.

[0013] As a further solution of the utility model: at least two circles of sealing rings are fixedly embedded in the groove on the top of the alloy disk.

[0014] As a further solution of the utility model: the length of the column is greater than the depth of the plug hole.

[0015] As a further solution of the utility model: a groove is arranged on the outer periphery of the dial head.

[0016] The utility model has the following beneficial effects:

[0017] The utility model provides a chassis component and a sleeve body, wherein the chassis component includes a disc body, a column and a dial head, and the sleeve body includes an alloy disc, a sleeve, a rubber sleeve and a rubber ring. The alloy disc and the sleeve are fixedly sleeved on the outer periphery of the column, and the bottom surface of the alloy disc is sealed and fitted to the top surface of the disc body. The dial head is passed through the plug hole on the metal casting to be surface treated, and the hole plug structure is pulled inwardly through the dial head until the top of the alloy disc fits with the surface of the metal casting. At this time, the rubber ring outside the rubber sleeve is squeezed and stuck on the inner wall of the plug hole, so as to prevent the hole plug structure from falling off from the plug hole after being used for a period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is an overall schematic diagram of an anti-drop hole plug structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model in which an anti-drop hole plug structure is plugged into a plug hole;

[0021] Figure 3 It is a schematic diagram of the chassis structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the sleeve structure in the first embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the sleeve body in the second embodiment of the present utility model.

[0024] In the figure: 1. chassis parts; 11. plate body; 12. column; 13. dial head; 14. groove; 2. sleeve body; 21. alloy plate; 22. sleeve; 23. rubber sleeve; 24. rubber ring; 25. connecting rib; 26. sealing ring; 3. plug hole. DETAILED DESCRIPTION

[0025] 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 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.

[0026] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it should not be understood as a limitation on the present invention.

[0027] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] Embodiment 1

[0029] See also Figure 1-4 As shown, this embodiment is an anti-dropping hole plug structure, which at least includes a chassis 1 and a sleeve 2.

[0030] See also Figure 3 As shown, in this embodiment, the chassis member 1 at least includes a disk body 11, a column 12 and a dial head 13. The chassis can be made of heat-resistant and corrosion-resistant materials. The column 12 is fixedly arranged at the center of the chassis. The length of the column 12 is greater than the depth of the plug hole 3. The dial head 13 is fixedly arranged on the top of the column 12. The column 12 and the dial head 13 can be hard plastic or metal material. The disk body 11, the column 12 and the dial head 13 are integrally formed, and a groove 14 is arranged on the outer periphery of the dial head 13.

[0031] See also Figure 4As shown, the sleeve body 2 at least includes an alloy disk 21, a sleeve 22, a rubber sleeve 23 and a rubber ring 24. The sleeve 22 is fixedly arranged at the center of the alloy disk 21 made of heat-resistant and corrosion-resistant material. The sleeve 22 can be made of hard plastic or metal. A rubber sleeve 23 is fixedly arranged outside the sleeve 22. The rubber sleeve 23 can be made of nitrile rubber. The outer diameter of the rubber sleeve 23 is equal to the diameter of the plug hole 3. At least two rubber rings 24 are fixedly arranged outside the rubber sleeve 23. The rubber rings 24 can be made of a wear-resistant and highly sticky material. In this embodiment, two rubber rings 24 are fixedly arranged outside the rubber sleeve 23. The two rubber rings 24 are spaced apart up and down. The outer diameter of the rubber ring 24 is 0.3mm-0.5mm larger than the outer diameter of the rubber sleeve 23.

[0032] See also Figure 1 As shown, the alloy disk 21 and the sleeve 22 are fixedly sleeved on the outer periphery of the column 12, and the bottom surface of the alloy disk 21 is sealed and fits the top surface of the disk body 11. Specifically, an external thread is provided on the outer periphery of the column 12, and an internal thread is provided in the alloy disk 21 and the sleeve 22. The alloy disk 21 and the sleeve 22 are detachably threaded and fixedly installed on the outer periphery of the column 12 through the cooperation of the external thread and the internal thread. It is worth noting that at this time, one of the disk body 11 and the dial head 13 needs to be connected to the column 12 after the alloy disk 21 and the sleeve 22 are installed on the column 12.

[0033] Furthermore, the outer circumference of the dial head 13 is coplanar with the outer circumference of the rubber sleeve 23, that is, the outer diameter of the dial head 13 is equal to the diameter of the plug hole 3, and at least two circles of high temperature and corrosion resistant sealing rings 26 are fixedly embedded in the groove 14 on the top of the alloy disk 21.

[0034] Embodiment 2

[0035] See also Figure 5 As shown, this embodiment is an improvement made on the basis of the first embodiment, and the difference between this embodiment and the first embodiment is that three rubber rings 24 are fixedly sleeved outside the rubber sleeve 23, and a plurality of connecting ribs 25 are arranged between two adjacent rubber rings 24, and the inner side surface of the connecting rib 25 is fixedly connected to the outer peripheral wall of the rubber sleeve 23, the outer diameter of the rubber ring 24 is 0.3mm-0.5mm larger than the outer diameter of the rubber sleeve 23, and the thickness of the connecting rib 25 is not greater than the thickness of the rubber ring 24.

[0036] When using the anti-drop hole plug structure provided by the embodiment of the utility model, first assemble the chassis 1 and the sleeve 2 to form a Figure 1The overall structure of the hole plug is shown, and then the dial head 13 is passed through the plug hole 3 on the metal casting to be surface treated. The worker pulls the hole plug structure inward through the dial head 13 until the top of the alloy disk 21 fits with the surface of the metal casting. The groove 14 on the outer periphery of the dial head 13 is convenient for the worker to pull the dial head 13. The sealing ring 26 on the top of the alloy disk 21 makes the alloy disk 21 fit more closely with the surface of the metal casting. After the top of the alloy disk 21 is sealed and fitted with the surface of the metal casting, the rubber ring 24 outside the rubber sleeve 23 is squeezed and stuck on the inner wall of the plug hole 3 to prevent the hole plug structure from falling off from the plug hole 3 after being used for a period of time.

[0037] The above is a detailed description of the preferred embodiments of the utility model, which cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An anti-drop hole plug structure, characterized in that: include: A chassis component (1), the chassis component (1) comprising a chassis body (11), a column (12) and a dial head (13), the column (12) being fixedly arranged at the center of the chassis, and the dial head (13) being fixedly arranged at the top of the column (12); A sleeve body (2), the sleeve body (2) comprising an alloy disc (21), a sleeve (22), a rubber sleeve (23) and a rubber ring (24); the sleeve (22) is fixedly arranged at the center of the alloy disc (21); a rubber sleeve (23) is fixedly sleeved outside the sleeve (22); the outer diameter of the rubber sleeve (23) is equal to the diameter of the plug hole (3); and at least two rubber rings (24) are fixedly sleeved outside the rubber sleeve (23); The alloy disk (21) and the sleeve (22) are fixedly sleeved on the outer periphery of the column (12), and the bottom surface of the alloy disk (21) is sealed and attached to the top surface of the disk body (11).

2. The anti-drop hole plug structure according to claim 1, characterized in that: The outer peripheral surface of the dial head (13) is coplanar with the outer peripheral surface of the rubber sleeve (23).

3. The anti-drop hole plug structure according to claim 1, characterized in that: Two rubber rings (24) are fixedly sleeved outside the rubber sleeve (23), and the outer diameter of the rubber ring (24) is 0.3 mm-0.5 mm larger than the outer diameter of the rubber sleeve (23).

4. The anti-drop hole plug structure according to claim 1, characterized in that: Three rubber rings (24) are fixedly sleeved outside the rubber sleeve (23), and a plurality of connecting ribs (25) are arranged between two adjacent rubber rings (24). The inner side surfaces of the connecting ribs (25) are fixedly connected to the outer peripheral wall of the rubber sleeve (23), and the outer diameter of the rubber ring (24) is 0.3 mm-0.5 mm larger than the outer diameter of the rubber sleeve (23).

5. The anti-drop hole plug structure according to claim 1, characterized in that: At least two circles of sealing rings (26) are fixedly embedded in the groove (14) at the top of the alloy disk (21).

6. The anti-drop hole plug structure according to claim 1, characterized in that: The length of the column (12) is greater than the depth of the plug hole (3).

7. The anti-drop hole plug structure according to claim 1, characterized in that: The outer periphery of the dial head (13) is provided with a groove (14).

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