Engine damping structure and chain saw
Through the design of the engine shock absorbing structure, including the bolted connection and limit groove design of the engine case, shock absorbing spring seat, shock absorbing spring cover and shock absorbing spring, the problem of low service life of the chain saw engine shock absorbing structure is solved, and the operating comfort and service life are improved.
Patent Information
- Application Number
- CN202422468803.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-12
AI Technical Summary
The shock-absorbing structure of existing chain saw engines has a low service life, and rubber shock-absorbing materials are prone to aging under the influence of gasoline, lubricating oil and high temperatures, resulting in engine vibrations being transmitted directly to the shell, which makes the user feel poor and has difficulty in operating for a long time.
The engine shock absorbing structure is adopted, including the engine housing, shock absorbing spring seat, shock absorbing spring cover and shock absorbing spring. The stability and service life of the engine shock absorbing structure are improved through bolted connections and limit groove design.
It improves the service life of the engine shock absorbing structure, improves the user's feel, reduces the difficulty of long-term operation, and improves operating comfort.
Smart Images
Figure CN223136811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine shock absorption, and more specifically, to an engine shock absorption structure and a chainsaw. Background Technique
[0002] A chainsaw, also known as a gasoline saw, is a hand-held saw powered by a gasoline engine, mainly used for logging and lumbering. Its working principle is that the staggered L-shaped blades on the saw chain move horizontally to perform a shearing action. Chainsaws are generally divided into motorized chainsaws, non-motorized chainsaws, etc.
[0003] For the shock absorption structure of a conventional chainsaw engine in the market, rubber shock absorption is used. In the existing rubber shock absorption, during use, it will be affected by gasoline, lubricating oil, and the high-temperature radiation of the engine. When left idle for a long time, the rubber will also harden, and it is easy to rot when used again, causing the engine vibration to be directly transmitted to the housing. The housing vibrates at a high frequency, resulting in a poor user experience, numb hands, and difficulty in long-term operation. Content of the Utility Model
[0004] The purpose of the utility model is to provide an engine shock absorption structure and a chainsaw to alleviate the technical problem of the low service life of the shock absorption structure in the existing technology.
[0005] In a first aspect, an embodiment of the utility model provides an engine shock absorption structure, including an engine housing, an engine, a shock absorption spring seat, a shock absorption spring cover, and a shock absorption spring;
[0006] The shock absorption spring is installed on the shock absorption spring seat, and the shock absorption spring cover is sleeved on the shock absorption spring;
[0007] A plurality of mounting seats for mounting the shock absorption spring seat are provided on the engine housing, and a mounting hole adapted to the shock absorption spring is provided on the engine housing.
[0008] In combination with the first aspect, an embodiment of the utility model provides a possible implementation manner of the first aspect, wherein the shock absorption spring cover includes a base cover and a threaded connection column;
[0009] The threaded connection column is provided on the base cover, and the shock absorption spring is threadedly arranged on the threaded connection column.
[0010] In combination with the first aspect, an embodiment of the utility model provides a possible implementation manner of the first aspect, wherein a limiting groove is provided on the base cover, and one end of the shock absorption spring can abut against the limiting groove.
[0011] In combination with the first aspect, an embodiment of the utility model provides a possible implementation manner of the first aspect, wherein a limiting ring is provided on the base cover.
[0012] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the damping spring seat comprises a press-fit cover and a connecting cylinder;
[0013] The connecting tube is arranged at one end of the press-fit cover, and the connecting tube is inserted on the base cover, and a gap is left between the press-fit cover and the base cover.
[0014] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein the press-fit cover and the connecting tube are both an integrated structure.
[0015] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein both the base cover and the press-fit cover are provided with connecting through holes for bolts to pass through.
[0016] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein at least two connecting through holes are provided on both the base cover and the press-fit cover.
[0017] In combination with the first aspect, the embodiment of the utility model provides a possible implementation of the first aspect, wherein a cross groove is provided on a side of the base cover facing away from the shock absorbing spring.
[0018] In a second aspect, an embodiment of the utility model provides a chain saw, comprising the engine shock absorbing structure.
[0019] Beneficial effects:
[0020] The utility model provides an engine shock-absorbing structure, comprising an engine housing, an engine, a shock-absorbing spring seat, a shock-absorbing spring cover and a shock-absorbing spring; the shock-absorbing spring is installed on the shock-absorbing spring seat, and the shock-absorbing spring cover is sleeved on the shock-absorbing spring; a plurality of mounting seats for mounting the shock-absorbing spring seats are arranged on the engine housing, and mounting holes adapted to the shock-absorbing spring are arranged on the engine housing.
[0021] Specifically, during assembly, the staff first installs the shock-absorbing spring on the shock-absorbing spring seat, then installs the shock-absorbing spring seat and the shock-absorbing spring in the mounting hole of the engine housing, then connects the shock-absorbing spring and the connecting hole of the engine through bolts, and then installs the shock-absorbing spring cover on the shock-absorbing spring seat. Through such an arrangement, the service life of the engine shock-absorbing structure can be improved.
[0022] The utility model provides a chain saw, comprising an engine shock absorbing structure. Compared with the prior art, the chain saw has the above advantages, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0024] Figure 1 Structural schematic diagram of the engine shock absorption structure provided by the embodiment of the present invention;
[0025] Figure 2 Schematic diagram of the engine and shock absorption in the engine shock absorption structure provided by the embodiment of the present invention;
[0026] Figure 3 Oblique view of the shock absorption spring seat, shock absorption spring cover and shock absorption spring in the engine shock absorption structure provided by the embodiment of the present invention;
[0027] Figure 4 Schematic diagram of the shock absorption spring seat, shock absorption spring cover and shock absorption spring in the engine shock absorption structure provided by the embodiment of the present invention;
[0028] Figure 5 Explosion schematic diagram of the shock absorption spring seat, shock absorption spring cover and shock absorption spring in the engine shock absorption structure provided by the embodiment of the present invention;
[0029] Figure 6 Schematic diagram of the shock absorption spring seat in the engine shock absorption structure provided by the embodiment of the present invention.
[0030] Icon:
[0031] 100 - Engine housing; 110 - Mounting hole;
[0032] 200 - Engine; 210 - Connection hole; 220 - Mounting screw;
[0033] 300 - Shock absorption spring seat; 310 - Pressing cover; 320 - Connecting cylinder; 330 - Connecting through hole; 340 - Threaded stop;
[0034] 400 - Shock absorption spring cover; 410 - Base cover; 420 - Threaded connection post; 430 - Limiting groove; 440 - Limiting ring; 450 - Cross slot;
[0035] 500 - Shock absorption spring. Specific embodiments
[0036] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.
[0039] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0040] The present utility model will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0041] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, this embodiment provides an engine shock absorption structure, which includes an engine housing 100, an engine 200, a shock absorption spring seat 300, a shock absorption spring cover 400, and a shock absorption spring 500; the shock absorption spring 500 is installed on the shock absorption spring seat 300, and the shock absorption spring cover 400 is sleeved on the shock absorption spring 500; multiple mounting seats for installing the shock absorption spring seat 300 are provided on the engine housing 100, and a mounting hole 110 adapted to the shock absorption spring 500 is provided on the engine housing 100.
[0042] Specifically, during assembly, the staff first installs the shock absorption spring 500 on the shock absorption spring seat 300, then installs the shock absorption spring seat 300 and the shock absorption spring 500 into the mounting hole 110 of the engine housing 100, then connects the shock absorption spring 500 with the connection hole 210 of the engine 200 through bolts, and then installs the shock absorption spring cover 400 on the shock absorption spring seat 300. With such a setting, the service life of the engine shock absorption structure can be improved.
[0043] Among them, both the shock absorption spring seat 300 and the shock absorption spring cover 400 are plastic parts. In addition, those skilled in the art can select the specific materials of the shock absorption spring seat 300 and the shock absorption spring cover 400 according to actual needs, and details will not be elaborated here.
[0044] Among them, the shock absorption spring 500 is connected to the engine 200 through a mounting screw 220.
[0045] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in the figure, in an alternative solution of this embodiment, the shock absorption spring cover 400 includes a base cover 410 and a threaded connection column 420; the threaded connection column 420 is provided on the base cover 410, and the shock absorption spring 500 is threadedly arranged on the threaded connection column 420.
[0046] Specifically, the threaded connection column of the shock absorption spring cover 400 can be screwed into the shock absorption spring 500, the base cover 410 can be sleeved on the shock absorption spring seat 300, and the shock absorption spring seat 300 and the shock absorption spring cover 400 are connected together by screws.
[0047] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in the figure, in an alternative solution of this embodiment, a limiting groove 430 is provided on the base cover 410, and one end of the shock absorption spring 500 can abut against the limiting groove 430.
[0048] Specifically, when the threaded connecting column 420 is screwed into the shock absorbing spring 500, the end of the shock absorbing spring 500 can abut against the limiting groove 430 on the base cover 410. Through the setting of the limiting groove 430, the base cover 410 can be better connected to the shock absorbing spring 500.
[0049] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional solution of this embodiment, a limiting ring 440 is provided on the base cover 410 .
[0050] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional scheme of this embodiment, the shock-absorbing spring seat 300 includes a press-fit cover 310 and a connecting tube 320; the connecting tube 320 is arranged at one end of the press-fit cover 310, and the connecting tube 320 is inserted on the base cover 410, and a gap is left between the press-fit cover 310 and the base cover 410.
[0051] Specifically, a limiting ring 440 is provided on the base cover 410 , and the limiting ring 440 corresponds to the compression cover 310 of the damping spring seat 300 . Such a setting enables the damping spring seat 300 and the damping spring cover 400 to press the mounting hole 110 of the engine housing 100 .
[0052] A threaded stop 340 is provided on the connecting tube 320 , and the threaded stop 340 can limit the shock absorbing spring 500 so that the shock absorbing spring 500 will not be separated from the connecting tube 320 .
[0053] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional solution of this embodiment, the compression cover 310 and the connecting tube 320 are an integrated structure.
[0054] Specifically, the press-fit cover 310 and the connecting tube 320 are an integrated structure, and through such a configuration, the structural strength of the damping spring seat 300 is improved.
[0055] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in an optional solution of this embodiment, both the base cover 410 and the press-fit cover 310 are provided with connecting through holes 330 for bolts to pass through.
[0056] At least two connecting through holes 330 are formed on both the base cover 410 and the pressing cover 310 .
[0057] Specifically, the base cover 410 and the press-fit cover 310 are connected together by screws. Both the base cover 410 and the press-fit cover 310 are provided with connecting through holes 330 . The screws pass through the base cover 410 and are then connected to the press-fit cover 310 .
[0058] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional solution of this embodiment, a cross groove 450 is formed on the side of the base cover 410 facing away from the shock absorbing spring 500 .
[0059] Specifically, a cross slot 450 is provided on the base cover 410 , so that the user can screw the damping spring cover 400 into the damping spring seat 300 using a tool.
[0060] This embodiment provides a chainsaw including an engine shock absorbing structure.
[0061] Specifically, the chainsaw provided in this embodiment has the advantages of the above-mentioned engine shock absorbing structure compared with the prior art, which will not be described in detail here.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. An engine shock-absorbing structure, characterized in that, include: An engine housing (100), an engine (200), a shock absorbing spring seat (300), a shock absorbing spring cover (400) and a shock absorbing spring (500); The shock absorbing spring (500) is installed on the shock absorbing spring seat (300), and the shock absorbing spring cover (400) is sleeved on the shock absorbing spring (500); The engine housing (100) is provided with a plurality of mounting seats for mounting the shock absorbing spring seat (300), and the engine housing (100) is provided with a mounting hole (110) adapted to the shock absorbing spring (500).
2. The engine shock-absorbing structure according to claim 1, characterized in that The shock-absorbing spring cover (400) comprises a base cover (410) and a threaded connection column (420); The threaded connection column (420) is disposed on the base cover (410), and the shock absorbing spring (500) is threadedly disposed on the threaded connection column (420).
3. The engine shock-absorbing structure according to claim 2, characterized in that, A limiting groove (430) is provided on the base cover (410), and one end of the shock absorbing spring (500) can abut against the limiting groove (430).
4. The engine shock-absorbing structure according to claim 2, characterized in that, A limiting ring (440) is provided on the base cover (410).
5. The engine shock absorption structure according to claim 4, characterized in that, The damping spring seat (300) comprises a press-fit cover (310) and a connecting tube (320); The connecting tube (320) is arranged at one end of the pressing cover (310), and the connecting tube (320) can be inserted into the base cover (410), and a gap is left between the pressing cover (310) and the base cover (410).
6. The engine shock absorption structure according to claim 5, wherein, The compression cover (310) and the connecting tube (320) are both an integrated structure.
7. The engine shock absorption structure according to claim 6, characterized in that, Both the base cover (410) and the press-fit cover (310) are provided with connection through holes (330) for bolts to pass through.
8. The engine shock-absorbing structure according to claim 7, characterized in that, At least two connecting through holes (330) are provided on both the base cover (410) and the pressing cover (310).
9. The engine shock-absorbing structure according to any one of claims 2-8, characterized in that, A cross groove (450) is formed on a side of the base cover (410) facing away from the shock absorbing spring (500).
10. A chainsaw, characterized in that, The invention comprises the engine vibration reduction structure as claimed in any one of claims 1 to 9.