Air valve chamber cover cap of explosion-proof diesel engine

Abstract

The utility model relates to the technical field of explosion-proof diesel engines, and discloses an explosion-proof diesel engine air valve chamber cover cap which comprises an air valve chamber cover cap body, a plurality of connecting holes arranged on the air valve chamber cover cap body, fastening pieces and buffering pieces, and the connecting holes correspond to the fastening pieces and the buffering pieces one by one. The air valve chamber cover cap body is fixedly provided with a rubber sealing ring which is arranged along the joint of the air valve chamber cover cap body and a rocker arm chamber cover, the fastening piece is a fastening bolt, the air valve chamber cover cap further comprises a connecting ring, the connecting ring is provided with an inner threaded hole corresponding to the connecting hole, and the connecting ring is provided with an outer threaded hole corresponding to the inner threaded hole. The fastening bolt is in threaded connection with the inner threaded hole and then penetrates through the connecting hole, and the end, extending out of the connecting hole, of the fastening bolt is in threaded connection with a pressing piece. The utility model has the following advantages and effects: a plurality of fasteners can pass through the connecting holes simultaneously, so that the installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof diesel engines, in particular to a valve chamber cover of an explosion-proof diesel engine. Background Art

[0002] Diesel engines are started by installing a fuel injector in the injector hole. The fuel sprayed by the injector enters the combustion chamber through the injection hole in the cylinder head, and then starts through compression ignition. To prevent oil leakage from the injector, the injector needs to be encapsulated. Currently, a combination of a rocker arm chamber and a valve cover is generally used to meet this requirement.

[0003] The Chinese patent with authorization announcement number CN214997947U discloses an explosion-proof diesel engine and its valve chamber cover, the valve chamber cover includes a valve chamber cover body, a sealing member, a plurality of buffer members and a plurality of fasteners, the valve chamber cover body is provided with a groove at the junction with the rocker chamber cover, the sealing member is embedded in the groove so that the valve chamber cover body and the rocker chamber cover are sealed and connected, the valve chamber cover body is provided with a plurality of connecting holes, the connecting holes correspond to the fasteners and the buffer members one by one, the fasteners pass through the buffer members and the connecting holes in turn to fix the valve chamber cover body to the rocker chamber cover; the above device has the following shortcomings: there are multiple fasteners, and when the valve chamber cover body and the rocker chamber cover are sealed and connected, multiple fasteners need to be passed through the connecting holes in turn, which is inconvenient to install. Utility Model Content

[0004] The utility model aims to provide an explosion-proof diesel engine valve chamber cover, which has the effect of allowing multiple fasteners to pass through the connecting holes together and improving the installation convenience.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: an explosion-proof diesel engine valve chamber cover, comprising a valve chamber cover body, a plurality of connecting holes, fasteners and buffers provided on the valve chamber cover body, the connecting holes corresponding to the fasteners and buffers one by one, the valve chamber cover body is fixed with a rubber sealing ring provided along the junction of the valve chamber cover body and the rocker chamber cover, the fastener is provided as a fastening bolt, and also includes a connecting ring, the connecting ring is provided with an internal threaded hole corresponding to the connecting hole, the fastening bolt is threadedly connected to the internal threaded hole and then passes through the connecting hole, and the fastening bolt extends out of the connecting hole and is threadedly connected to a clamping member at one end.

[0006] By adopting the above technical solution, multiple fastening bolts thread through the connecting ring to integrally connect it. When installing the air valve chamber cover body, align one fastening bolt to penetrate and extend out of the connecting hole, then multiple fastening bolts will jointly align to penetrate and extend out of the connecting hole at the same time, completing the quick positioning connection between the fastening bolts and the connecting holes. Multiple fastening bolts also pass through the mounting holes provided on the rocker arm cover at the same time, thereby quickly connecting the air valve chamber cover body and the rocker arm cover. Then, use a pressing member to threadedly connect with the fastening bolts to relatively fix the air valve chamber cover body and the rocker arm cover. The entire installation process saves the time of aligning multiple fasteners with the connecting holes respectively, making the entire installation process more efficient, and can also avoid the loss of fasteners during the disassembly process, maintaining the integrity of the device.

[0007] A further setting of the present utility model is that: the connecting ring is sleeved on the outer wall surface of the air valve chamber cover body.

[0008] By adopting the above technical solution, it is convenient to install and disassemble the connecting ring.

[0009] A further setting of the present utility model is that: the inner wall surface of the connecting ring fits the outer wall surface of the air valve chamber cover body.

[0010] By adopting the above technical solution, when the connecting ring is directly sleeved on the outer wall surface of the air valve chamber cover body, the quick positioning connection between the fastening bolts and the connecting holes can be realized, making the installation more efficient, and can also further save the peripheral space.

[0011] A further setting of the present utility model is that: the buffer member includes a connecting rod provided with a through hole, a washer and a mounting ring respectively arranged at both ends of the connecting rod, and the mounting ring and the connecting rod are detachably connected.

[0012] By adopting the above technical solution, when installing the air valve chamber cover body, first make the connecting rod pass through the connecting hole. The washer at one end of the connecting rod is restricted outside the connecting hole to achieve the buffering function. After one end of the connecting rod passes through the connecting hole, it is connected to the mounting ring to restrict and fix the connecting rod in the connecting hole. Then, make the fastening bolts jointly pass through the through hole and the rocker arm cover to realize the quick connection between the air valve chamber cover body and the rocker arm cover. Finally, use a pressing member to fix the air valve chamber cover body and the rocker arm cover; the detachable connection between the mounting ring and the connecting rod enables the buffer member to be overhauled at any time.

[0013] A further setting of the present utility model is that: the washer is set as a rubber washer.

[0014] By adopting the above technical solution, the deformation of the rubber sealing ring is reduced.

[0015] A further setting of the present utility model is that: the end of the connecting rod extending out of the connecting hole is provided with an external thread, and the mounting ring is provided with an internal thread adapted to the external thread.

[0016] By adopting the above technical solution, after the connecting rod extends out of the connecting hole, it is threadedly connected with the mounting ring to fix the connecting rod and the washer at the connecting hole.

[0017] A further setting of the present utility model is that: the pressing member is set as a pressing nut.

[0018] By adopting the above technical solution, the pressing nut is used to fix between the valve chamber cover body and the rocker arm chamber cover.

[0019] A further setting of the present utility model is that: a plurality of injector mounting seats are arranged on the valve chamber cover body.

[0020] By adopting the above technical solution, the injector mounting seat is used to realize the connection between the injector and the valve chamber cover body.

[0021] A further setting of the present utility model is that: a breather port cover is further arranged on the valve chamber cover body.

[0022] By adopting the above technical solution, the breather port cover connects the crankcase of the diesel engine with the atmosphere, making the air pressure in the crankcase equal to the atmospheric pressure, and ensuring the oil seals at all parts of the diesel engine.

[0023] A further setting of the present utility model is that: an oil filling port is opened on the valve chamber cover body.

[0024] By adopting the above technical solution, oil is filled into the valve chamber through the oil filling port.

[0025] The beneficial effects of the present utility model are:

[0026] 1. Multiple fastening bolts are threaded through the connecting ring to integrally connect them. When installing the valve chamber cover body, if one fastening bolt is aligned and inserted through the connecting hole, then multiple fastening bolts will be simultaneously aligned and inserted through the connecting hole, completing the quick positioning connection between the fastening bolts and the connecting hole;

[0027] 2. When the connecting ring is directly sleeved on the outer wall surface of the valve chamber cover body, the quick positioning connection between the fastening bolts and the connecting hole can be realized, making the installation more efficient, and at the same time, it can further save the peripheral space;

[0028] 3. The detachable connection between the mounting ring and the connecting rod enables the buffer member to be overhauled at any time. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these attached drawings.

[0030] Figure 1 is a schematic structural diagram of the present utility model.

[0031] Figure 2 is Figure 1 the enlarged view of part A in

[0032] Figure 3 is a schematic diagram of the connection relationship between the connection hole and the buffer member of the present utility model.

[0033] Figure 4 is a schematic side sectional view structure diagram of the present utility model.

[0034] Figure 5 is Figure 4 the enlarged view of part B in

[0035] In the figure, 1 is the valve chamber cover body; 2 is the connection hole; 3 is the fastener; 4 is the buffer member; 41 is the connecting rod; 42 is the washer; 43 is the mounting ring; 5 is the connecting ring; 6 is the pressing member; 7 is the fuel injector mounting seat; 8 is the breather port cover; 9 is the oil filling port. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions of the present utility model in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0037] Embodiment 1, an explosion-proof diesel engine valve chamber cover, as Figures 1-4 shown, includes a valve chamber cover body 1, a plurality of connection holes 2 provided on the valve chamber cover body 1, fasteners 3 and buffer members 4. The connection holes 2 correspond to the fasteners 3 and the buffer members 4 one by one. A rubber sealing ring is fixed on the valve chamber cover body 1 along the joint of the valve chamber cover body 1 and the rocker arm cover. The fastener 3 is set as a fastening bolt, and further includes a connecting ring 5. The connecting ring 5 is provided with internal threaded holes corresponding to the connection holes 2. After the fastening bolt is threadedly connected to the internal threaded hole, it passes through the connection hole 2, and one end of the fastening bolt extending out of the connection hole 2 is threadedly connected with a pressing member 6.

[0038] Furthermore, the connecting ring 5 is sleeved on the outer wall surface of the valve chamber cover body 1.

[0039] Further, the inner wall surface of the connecting ring 5 fits against the outer wall surface of the valve chamber cover body 1.

[0040] Further, the buffer member 4 includes a connecting rod 41 provided with a through hole, a washer 42 and a mounting ring 43 respectively provided at both ends of the connecting rod 41, and the mounting ring 43 and the connecting rod 41 are detachably connected.

[0041] Further, the washer 42 is provided as a rubber washer 42.

[0042] Further, the connecting rod 41 has an external thread at one end extending out of the connecting hole 2, and the mounting ring 43 is provided with an internal thread adapted to the external thread.

[0043] Further, the pressing member 6 is provided as a pressing nut.

[0044] Further, a plurality of injector mounting seats 7 are provided on the valve chamber cover body 1.

[0045] Further, a breather port cover 8 is also provided on the valve chamber cover body 1.

[0046] Further, an oil filling port 9 is opened on the valve chamber cover body 1.

[0047] Working principle of the present utility model: When installing the valve chamber cover body 1, first pass the connecting rod 41 through the connecting hole 2. The washer 42 at one end of the connecting rod 41 is restricted outside the connecting hole 2 to achieve the buffering function. After one end of the connecting rod 41 passes through the connecting hole 2, it is threadedly connected to the mounting ring 43 to restrict and fix the connecting rod 41 in the connecting hole 2. A plurality of fastening bolts are threadedly passed through the connecting ring 5 to integrally connect them. When the connecting ring 5 is directly sleeved on the outer wall surface of the valve chamber cover body 1, a plurality of fastening bolts are jointly aligned and inserted through the connecting hole 2 to complete the quick positioning connection of the fastening bolts and the connecting hole 2. A plurality of fastening bolts also pass through the mounting holes provided on the rocker arm cover at the same time, thereby quickly connecting the valve chamber cover body 1 and the rocker arm cover. Then, use the pressing nut to be threadedly connected to the fastening bolt to relatively fix the valve chamber cover body 1 and the rocker arm cover. The entire installation process saves the time for respectively aligning a plurality of fasteners 3 with the connecting hole 2, making the entire installation process more efficient.

[0048] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof diesel engine valve chamber cover, comprising a valve chamber cover body (1), a plurality of connecting holes (2) provided on the valve chamber cover body (1), fasteners (3) and buffer members (4), wherein the connecting holes (2) correspond to the fasteners (3) and the buffer members (4) one by one, and a rubber sealing ring is fixed to the valve chamber cover body (1) along the joint between the valve chamber cover body (1) and the rocker arm chamber cover, and is characterized in that: The fastener (3) is provided as a fastening bolt, and further includes a connecting ring (5). An internal threaded hole corresponding to the connecting hole (2) is provided on the connecting ring (5). The fastening bolt is threadedly connected to the internal threaded hole and then passes through the connecting hole (2). A pressing member (6) is threadedly connected to one end of the fastening bolt extending out of the connecting hole (2).

2. The explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: The connecting ring (5) is sleeved on the outer wall surface of the air valve chamber cover body (1).

3. The explosion-proof diesel engine valve chamber cover according to claim 2, characterized in that: The inner wall surface of the connecting ring (5) is attached to the outer wall surface of the air valve chamber cover body (1).

4. An explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: The buffer member (4) includes a connecting rod (41) provided with a through hole, a washer (42) and a mounting ring (43) respectively provided at both ends of the connecting rod (41). The mounting ring (43) and the connecting rod (41) are detachably connected.

5. An explosion-proof diesel engine valve chamber cover according to claim 4, characterized in that: The washer (42) is provided as a rubber washer (42).

6. The explosion-proof diesel engine valve chamber cover according to claim 4, characterized in that: One end of the connecting rod (41) extending out of the connecting hole (2) is provided with an external thread, and an internal thread adapted to the external thread is provided in the mounting ring (43).

7. The explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: The pressing member (6) is provided as a pressing nut.

8. The explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: A plurality of fuel injector mounting seats (7) are provided on the air valve chamber cover body (1).

9. The explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: A breather port cover (8) is further provided on the air valve chamber cover body (1).

10. The explosion-proof diesel engine valve chamber cover according to claim 1, characterized in that: An engine oil filling port (9) is opened on the air valve chamber cover body (1).

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