Tensioner assembly capable of preventing falling apart

Abstract

The utility model relates to the technical field of tensioners, in particular to an anti-falling tensioner assembly which comprises a positioning base, a limiting boss is fixedly connected to the bottom end position of the positioning base, a center clamping opening is formed in the top end face of the positioning base, a spin riveting connecting piece is fixedly installed on the inner side of the center clamping opening, and the spin riveting connecting piece is fixedly connected with the limiting boss. According to the anti-falling tensioner assembly, the limiting boss, the spin riveting connecting piece and the lug plates are arranged, so that before the anti-falling tensioner assembly is used, after the limiting boss is clamped with an automobile reserved bayonet in advance, a fastening structure composed of the spin riveting connecting piece and the set of lug plates is utilized, and therefore the anti-falling tensioner assembly can be used for fastening the automobile reserved bayonet in advance. The whole tensioner assembly is stably installed on the automobile supporting plate, enough binding force is achieved after the tensioner assembly and the automobile supporting plate are connected, the problem that a tensioner is prone to loosening and deforming after being subjected to vibration impact is solved, and the problem that the tensioner assembly falls apart in the using process is also solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, in particular to an anti-falling-apart tensioner assembly. Background Art

[0002] At present, when the car is started and operated by the engine, the tensioner assembly is a commonly used clamping device in the belt chain transmission system. It acts on the timing belt or chain of the car engine to guide and tension it, so that it is always in the best tension state, thereby avoiding the belt from slipping. At the same time, when the belt is loose due to wear or other reasons, the tension can be adjusted by adjusting the tensioner assembly;

[0003] Before using the tensioner assembly to assist the operation of the automobile engine in the prior art, the entire assembly generally needs to be assembled on a support plate reserved for the engine. However, considering the factors such as vibration and impact in the use environment of the tensioner, the tensioner with an unstable connection can easily become loose on the support plate under repeated vibration and impact, which also affects its subsequent normal use. Therefore, a tensioner assembly that prevents falling apart is proposed to address the above problem. Utility Model Content

[0004] The utility model aims to provide a tensioner assembly that prevents falling apart, so as to solve the problem in the prior art that when the tensioner assembly is used, the connection is unstable, resulting in looseness and affecting subsequent use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tensioner assembly for preventing a frame from falling apart comprises a positioning base, a limiting boss is fixedly connected to the bottom end of the positioning base, a center card interface is provided on the top end surface of the positioning base, a rivet connector is fixedly installed on the inner side of the center card interface, ear plates are fixedly connected to the two sides of the positioning base, a threaded fixing hole body is provided on the top end surface of the ear plates, an outer bracket is fixedly connected to the rear end of the positioning base, a tensioning wheel body is provided on the upper end of the outer bracket, and the outer bracket and the tensioning wheel body are connected by a fastening pin.

[0007] Preferably, the outer diameter of the positioning base is larger than the outer diameter of the limiting boss, and the outer shape of the limiting boss is a cylindrical structure.

[0008] Preferably, an external boss is fixedly connected to one side of the front end of the positioning base, a threaded column is threadedly connected to the inner side of the external boss, a limiting pin is fixedly connected to the top end of the threaded column, and the limiting pin is arranged in an "L"-shaped structure.

[0009] Preferably, the outer sleeve of the rotary rivet connector is provided with a rubber gasket, and the outer portion of the rubber gasket is bonded with a threaded clamping ring.

[0010] Preferably, the inner side surface of the center clamping interface is provided with an internal thread that is threadably connected to the threaded clamping ring, the top of the rubber gasket is flush with the top of the positioning base, and the top of the rotary riveted connector is a flat structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by providing a limiting boss, a rivet connector and an ear plate, it is convenient for the tensioner assembly of the anti-falling-apart frame to be able to stably install the entire tensioner assembly on the automobile support plate by using a fastening structure composed of a rivet connector and a group of ear plates after the limiting boss is pre-engaged with the reserved bayonet of the automobile before use, so that the two have sufficient bonding force after being connected, so as to prevent the tensioner from being loosened and deformed after being subjected to vibration and impact, thereby making the entire tensioner assembly have the function of preventing falling apart during use, and in the installation process, the entire tensioner assembly adopts a connection structure design of double "hanging ear" type bolt fixing holes, which can also solve the problem that the center bolt hole cannot be used for fixing due to space limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the outer bracket of the utility model;

[0015] Figure 3 This is a schematic diagram of the half-cut structure of the rubber gasket of the utility model.

[0016] In the figure: 1. Positioning base; 2. Limiting boss; 3. Center clamping interface; 4. Riveted connector; 5. Rubber gasket; 6. Threaded clamping ring; 7. External bracket; 8. Tensioning wheel body; 9. Fastening pin; 10. Ear plate; 11. Threaded fixing hole body; 12. External boss; 13. Limiting pin; 14. Threaded column. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3, the utility model provides a technical solution:

[0019] A tensioner assembly for preventing disintegration of a frame includes a positioning base 1, a limiting boss 2 is fixedly connected to the bottom end of the positioning base 1, a center card interface 3 is provided on the top end surface of the positioning base 1, a rivet connector 4 is fixedly installed on the inner side of the center card interface 3, ear plates 10 are fixedly connected to the two sides of the positioning base 1, a threaded fixing hole body 11 is provided on the top end surface of the ear plate 10, an outer bracket 7 is fixedly connected to the rear position of the positioning base 1, a tensioning wheel body 8 is provided on the upper position of the outer bracket 7, and the outer bracket 7 and the tensioning wheel body 8 are connected by a fastening pin 9.

[0020] like Figure 1 and Figure 2 As shown, the outer diameter of the positioning base 1 is larger than the outer diameter of the limiting boss 2, and the outer shape of the limiting boss 2 is a cylindrical structure. When assembling the entire tensioner assembly, the cylindrical limiting boss 2 is adapted to fit with the reserved snap-in slot of the automobile support plate, so that the installation of the entire tensioner assembly can be pre-defined; an outer boss 12 is fixedly connected to the front end side of the positioning base 1, and a threaded column 14 is threadedly connected to the inner side of the outer boss 12, and a limiting pin 13 is fixedly connected to the top of the threaded column 14, and the outer shape of the limiting pin 13 is an "L"-shaped structure. After completing the installation of the entire tensioner assembly and putting the transmission belt on the outside of the tensioner body 8, the limiting pin 13 can be quickly assembled to the outer boss 12 through the threaded connection between the threaded column 14 and the outer boss 12. At this time, the design of the tensioner body 8 not only facilitates the convenient installation of the belt component of the entire tensioner assembly, but also plays a certain auxiliary limiting role on it after being screwed into place and against the outer surface of the belt component.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the outer sleeve of the rotary rivet connector 4 is provided with a rubber gasket 5, and the outer side of the rubber gasket 5 is bonded with a threaded clamping ring 6. When the threaded clamping ring 6 is screwed and installed into the interior of the center clamping interface 3, the rubber gasket 5 is clamped into the interior of the center clamping interface 3. At this time, the setting of the rubber gasket 5 mainly plays an auxiliary sealing role; the inner side surface of the center clamping interface 3 is provided with an internal thread threadedly connected to the threaded clamping ring 6, the top of the rubber gasket 5 is flush with the top of the positioning base 1, and the top of the rotary rivet connector 4 is a flat structure. When the rotary rivet connector 4 is installed on the top surface of the positioning base 1, the top of the rotary rivet connector 4 is a flat structure, which can make the connection between it and the center clamping interface 3 more fit, and avoid the top of the rotary rivet connector 4 being too protruding, affecting the normal use of the tensioner in the later stage.

[0022] Working process: Before using the tensioner assembly, the limiting boss 2 can be first mounted into the reserved slot on the automobile support plate, and then the rivet connector 4 can be penetrated through the positioning base 1 and the reserved hole inside the limiting boss 2 at the same time to quickly and firmly connect the pre-buried docking fixture inside the automobile support plate. Then, the ear plate 10 and the automobile support plate can be simultaneously connected by bolts, so that the entire tensioner assembly can be quickly and stably installed on the automobile support plate through the fastening structure composed of the rivet connector 4 and a group of ear plates 10, ensuring that there is sufficient bonding force between it and the support plate, and the connection is more reliable, thereby achieving the purpose of preventing the tensioner wheel from falling apart.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fall-apart tensioner assembly, comprising a positioning base (1), characterized in that: The bottom end of the positioning base (1) is fixedly connected to a limiting boss (2), the top end surface of the positioning base (1) is provided with a center clamping interface (3), the inner side of the center clamping interface (3) is fixedly installed with a rivet connector (4), the two sides of the positioning base (1) are respectively fixedly connected to ear plates (10), the top end surface of the ear plates (10) is provided with a threaded fixing hole body (11), the rear end of the positioning base (1) is fixedly connected to an outer bracket (7), the upper part of the outer bracket (7) is provided with a tensioning wheel body (8), and the outer bracket (7) and the tensioning wheel body (8) are connected via a fastening pin shaft (9).

2. The tensioner assembly of the anti-fallaway frame according to claim 1, characterized in that: The outer diameter of the positioning base (1) is greater than the outer diameter of the limiting boss (2), and the outer shape of the limiting boss (2) is a cylindrical structure.

3. The tensioner assembly of the anti-fallaway frame according to claim 1, characterized in that: An outer boss (12) is fixedly connected to one side of the front end of the positioning base (1), a threaded column (14) is threadedly connected to the inner side of the outer boss (12), a limiting pin (13) is fixedly connected to the top end of the threaded column (14), and the limiting pin (13) is arranged in an "L"-shaped structure.

4. The tensioner assembly for preventing a falling apart frame according to claim 1, characterized in that: The outer portion of the rotary riveted connector (4) is sleeved with a rubber gasket (5), and the outer portion of the rubber gasket (5) is bonded with a threaded clamping ring (6).

5. The tensioner assembly for preventing a falling apart frame according to claim 4, characterized in that: The inner side surface of the central clamping interface (3) is provided with an internal thread which is threadably connected to the threaded clamping ring (6); the top of the rubber gasket (5) is flush with the top of the positioning base (1); and the top of the rotary riveted connector (4) is a flat structure.

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