Sealing chain
By setting up a sealing ring at the connections of the inner and outer links of the chain, the problems of clamping and wear caused by dust entering are solved, and a sealing chain design with good sealing and high durability is achieved.
Patent Information
- Application Number
- CN202421948757.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The chain is prone to dust entering in the dust environment, resulting in faster operational obstacles and wear, affecting its service life.
A sealing chain is designed, by providing a seal at the connection between the inner link and the outer link, especially the sealing ring at both ends of the sleeve, to seal the entry of dust and improve sealing.
Effectively avoid dust entering, prevent obstacles and wear, and extend the service life of the chain.
Smart Images
Figure CN223294248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chains, in particular to a sealing chain. Background Art
[0002] At present, when there is a large amount of dust in the environment where the chain is used, the dust can easily enter the chain, causing operation obstruction and accelerated chain wear, affecting the normal operation of the chain. Utility Model Content
[0003] The purpose of the utility model is to provide a sealing chain with good sealing performance, which can prevent dust from entering the interior and causing jamming or increased wear, thereby improving its durability and extending its service life.
[0004] The embodiment of the present utility model is achieved as follows:
[0005] The utility model provides a sealing chain, which includes a plurality of inner chain links, a plurality of outer chain links, a plurality of connecting pins and a plurality of sealing elements;
[0006] The plurality of inner chain links and the plurality of outer chain links are arranged in a staggered order, and each outer chain link is correspondingly connected to two connecting pins, and the two connecting pins are respectively passed through the sleeves of the two inner chain links adjacent to the outer chain link;
[0007] Each sealing member corresponds to a sleeve, and both ends of the sleeve are sealed by the corresponding sealing member.
[0008] In an optional embodiment, the sealing member includes two first sealing rings, both of which are sleeved on the portion of the connecting pin located in the sleeve and are located at opposite ends of the sleeve.
[0009] In an optional embodiment, the inner circumferential surface of the sleeve is provided with a first mounting groove that cooperates with the two first sealing rings.
[0010] In an optional embodiment, a second mounting groove that cooperates with the two first sealing rings is formed on the outer circumferential surface of the connecting pin.
[0011] In an optional embodiment, the first sealing ring is an X-shaped sealing ring.
[0012] In an optional embodiment, the seal includes two second sealing rings, which are both sleeved on the portion of the connecting pin located outside the sleeve, and are located at two ends of the sleeve relative to each other, and respectively abut against the two ends of the sleeve.
[0013] In an optional embodiment, the two outer link plates of the outer link are respectively pressed against the second sealing rings on the connecting pin shafts connected thereto.
[0014] In an optional embodiment, the inner side surface of the outer link plate is provided with a third mounting groove that cooperates with the second sealing ring.
[0015] In an optional embodiment, a third sealing ring is provided between the outer link plate of the outer link and the inner link plate of the inner link, and the third sealing ring is located on the outer periphery of the sleeve.
[0016] In an optional embodiment, the outer link plate or the inner link plate is provided with a fourth mounting groove for accommodating the third sealing ring.
[0017] The beneficial effects of the embodiments of the present utility model include:
[0018] The sealing chain includes multiple inner links, multiple outer links, multiple connecting pins, and multiple sealing elements. The multiple inner links and multiple outer links are arranged in a staggered order, and each outer link is connected to two corresponding connecting pins, which are respectively inserted into the sleeves of two adjacent inner links. Each sealing element corresponds to a sleeve, and both ends of the sleeve are sealed by the corresponding sealing element. The sealing chain has good sealing performance, thereby preventing dust from entering the chain and causing jamming or increased wear, thereby improving its durability and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 This is a structural diagram of a sealing chain in an embodiment of the present utility model;
[0021] Figure 2 for Figure 1 Partial view at point A in the middle;
[0022] Figure 3 This is a structural diagram of the sealing chain configured with a second sealing ring in an embodiment of the present utility model;
[0023] Figure 4 This is a structural diagram of an embodiment of the present invention in which the sealing chain is equipped with a third sealing ring.
[0024] Icon: 100-sealed chain; 110-inner link; 120-outer link; 130-connecting pin; 140-seal; 111-sleeve; 141-first sealing ring; 112-first mounting groove; 142-second sealing ring; 113-inner link plate; 121-outer link plate; 143-third sealing ring. DETAILED DESCRIPTION
[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0029] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.
[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0031] Please refer to Figure 1 and Figure 2 , this embodiment provides a sealing chain 100, the sealing chain 100 includes a plurality of inner links 110, a plurality of outer links 120, a plurality of connecting pins 130 and a plurality of sealing members 140;
[0032] The plurality of inner chain links 110 and the plurality of outer chain links 120 are arranged in a staggered order, and each outer chain link 120 is connected to two corresponding connecting pins 130, and the two connecting pins 130 are respectively passed through the sleeves 111 of the two inner chain links 110 adjacent to the outer chain link 120;
[0033] Each sealing member 140 corresponds to a sleeve 111 , and both ends of the sleeve 111 are sealed by the corresponding sealing member 140 .
[0034] Please refer to Figure 1 and Figure 2 The working principle of the sealing chain 100 is:
[0035] During use of the sealing chain 100, especially when dust is present in the environment, dust is prevented from entering the connection between the outer link 120 and the inner link 110 of the chain, that is, between the connecting pin 130 and the sleeve 111, thereby causing the rotation between the connecting pin 130 and the sleeve 111 to be affected by the accumulated dust, resulting in jamming, or excessive wear on the rotating contact surface between the connecting pin 130 and the sleeve 111 due to the accumulated dust;
[0036] Therefore, a seal 140 is provided, which can seal both ends of the sleeve 111 at the connection between each inner link 110 and the outer link 120, thereby preventing dust from entering the sleeve 111, that is, entering the fitting gap between the connecting pin 130 and the sleeve 111, thereby improving the sealing performance. As a result, the sealing chain 100 has good sealing performance, and can avoid jamming or increased wear due to dust entering its interior, thereby improving its durability and extending its service life.
[0037] For further information, please refer to Figure 1 and Figure 2In this embodiment, as can be seen from the above content, this embodiment adopts a method of sealing both ends of the sleeve 111 by setting a seal 140, thereby preventing dust in the environment from entering the fitting gap between the connecting pin 130 and the sleeve 111, thereby preventing the relative rotation between the inner link 110 and the outer link 120 from being blocked, or excessive wear between the rotating contact surfaces of the connecting pin 130 and the sleeve 111. Based on this, this embodiment can adopt a seal 140 including two first sealing rings 141, and the two first sealing rings 141 are both sleeved on the portion of the connecting pin 130 located in the sleeve 111, and are relatively located at both ends of the sleeve 111;
[0038] That is, the above-mentioned first sealing ring 141 can be configured and set in the sleeve 111. On the basis of being sleeved on the connecting pin 130, it can be relatively located at the two ends of the sleeve 111, and by contacting the inner circumferential surface of the sleeve 111, the two ends of the sleeve 111 are sealed, thereby preventing dust in the environment from entering the fitting gap between the connecting pin 130 and the sleeve 111.
[0039] Based on the above-mentioned structural setting, in order to improve the installation stability of the first sealing ring 141 and prevent its position relative to the sleeve 111 or the connecting pin 130 from changing during use, a first installation groove 112 that cooperates with the two first sealing rings 141 can be opened on the inner circumference of the sleeve 111, and a second installation groove that cooperates with the two first sealing rings 141 can be opened on the outer circumference of the connecting pin 130.
[0040] Therefore, by setting the above-mentioned first installation groove 112 or the second installation groove, the first sealing ring 141 can be positioned and installed, thereby preventing the first sealing ring 141 from shifting during use, thereby causing sealing failure or reduced sealing effect.
[0041] On the basis of the above structure, when selecting the first sealing ring 141, this embodiment adopts an X-shaped sealing ring as the first sealing ring 141. Through such a setting, the sealing performance can be improved. At the same time, the setting of the X-shaped sealing ring will not change the inner and outer section gaps of the chain itself.
[0042] In addition, when assembling the above-mentioned connecting pin 130, sleeve 111 and first sealing ring 141, this embodiment adopts that when the connecting pin 130 is connected to the outer link plate 121 of the outer link 120 and inserted into the sleeve 111, the first sealing ring 141 on one side of the connecting pin 130 is located in the first mounting groove 112 or the second mounting groove along the axial direction of the connecting pin 130, and the connecting pin 130 is tightly matched with the sleeve 111, that is, the gap on one side is eliminated to obtain better sealing performance.
[0043] The difference from the above-mentioned first sealing ring 141 is that Figure 1-Figure 3 In other embodiments of the present invention, the seal 140 may further include two second sealing rings 142. The two second sealing rings 142 are sleeved on the portion of the connecting pin 130 located outside the sleeve 111, and are located opposite to and respectively abut against the ends of the sleeve 111. Furthermore, the two outer link plates 121 of the outer link 120 are respectively pressed against the second sealing rings 142 on the connecting pin 130 connected thereto.
[0044] To accommodate this, the inner side surface of the outer link plate 121 is provided with a third mounting groove that cooperates with the second sealing ring 142 .
[0045] Therefore, when configuring the second sealing ring 142, the second sealing ring 142 can be set outside the sleeve 111, and on the basis of being sleeved on the connecting pin shaft 130, under the pressure of the outer link plate 121, the second sealing ring 142 is pressed against the two ends of the sleeve 111, thereby sealing the ports at both ends of the sleeve 111.
[0046] It should be noted that when configuring the second sealing ring 142 , the second sealing ring 142 can be provided in addition to the first sealing ring 141 , that is, the first sealing ring 141 and the second sealing ring 142 can be provided at the same time.
[0047] For further information, please refer to Figures 1-4 In this embodiment, in addition to the above-mentioned arrangement of the first sealing ring 141 and the second sealing ring 142, a third sealing ring 143 may be provided between the outer link plate 121 of the outer link 120 and the inner link plate 113 of the inner link 110. The third sealing ring 143 is located on the outer circumference of the sleeve 111. Furthermore, a fourth mounting groove for accommodating the third sealing ring 143 is defined in the outer link plate 121 or the inner link plate 113.
[0048] Therefore, a third sealing ring 143 can be provided outside the sleeve 111 to seal the area between the outer link plate 121 and the inner link plate 113, thereby isolating the sleeve 111 from the outside world and improving its sealing performance. It should be noted that when configuring the third sealing ring 143, it can be provided in addition to the first sealing ring 141 and / or the second sealing ring 142. Its purpose is to ensure that if one of the sealing rings fails, the other sealing ring can function to ensure the sealing performance.
[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A sealing chain, characterized in that: The sealing chain includes a plurality of inner links, a plurality of outer links, a plurality of connecting pins and a plurality of sealing elements; The plurality of inner chain links and the plurality of outer chain links are arranged in a staggered order, and each outer chain link is correspondingly connected to two connecting pins, and the two connecting pins are respectively passed through the sleeves of two inner chain links adjacent to the outer chain link; Wherein, each of the sealing members corresponds to one of the sleeves, and both ends of the sleeve are sealed by the corresponding sealing members.
2. The sealing chain according to claim 1, characterized in that: The sealing member includes two first sealing rings, which are both sleeved on the portion of the connecting pin located in the sleeve and are located at two opposite ends of the sleeve.
3. The sealing chain according to claim 2, characterized in that: The inner circumference of the sleeve is provided with a first mounting groove which cooperates with the two first sealing rings.
4. The sealing chain according to claim 2, characterized in that: The outer circumferential surface of the connecting pin shaft is provided with a second mounting groove which cooperates with the two first sealing rings.
5. The sealing chain according to claim 2, characterized in that: The first sealing ring is an X-shaped sealing ring.
6. The sealing chain according to claim 1, characterized in that: The sealing member includes two second sealing rings, which are both sleeved on the portion of the connecting pin located outside the sleeve, and are relatively located at the two ends of the sleeve, and respectively abut against the two ends of the sleeve.
7. The sealing chain according to claim 6, characterized in that: The two outer link plates of the outer link are respectively pressed against the second sealing rings on the connecting pin shafts connected thereto.
8. The sealing chain according to claim 7, characterized in that: The inner side surface of the outer link plate is provided with a third mounting groove matched with the second sealing ring.
9. The sealing chain according to any one of claims 1 to 8, characterized in that: A third sealing ring is provided between the outer link plate of the outer link and the inner link plate of the inner link, and the third sealing ring is located on the outer periphery of the sleeve.
10. The sealing chain according to claim 9, characterized in that: The outer link plate or the inner link plate is provided with a fourth mounting groove for accommodating the third sealing ring.