Engine cylinder head cover structure

Abstract

The utility model provides an engine cylinder head cover structure which relates to the technical field of engine cylinder head covers and comprises a supporting plate, two inserting grooves are formed in the top of the supporting plate, limiting grooves are formed in the inner walls of the two inserting grooves, springs are fixedly installed on the inner walls of the two limiting grooves, and clamping blocks are fixedly installed at the ends, close to the inserting grooves, of the two springs. Through openings are formed in the inner walls of the two limiting grooves in a penetrating mode, and pulling plates are fixedly installed on the outer walls of the two clamping blocks. During replacement, a worker pulls the pulling plate, the pulling plate drives the clamping block to move, the clamping block leaves the clamping groove, the spring is compressed, at the moment, the worker can take down the positioning pipe and clean and replace the positioning pipe, during installation, the worker inserts the inserting block into the inserting groove, the inserting block makes contact with the inclined face of the clamping block, the clamping block is extruded to enter the limiting groove, and the clamping block is clamped in the limiting groove. When the clamping groove moves to the position beside the clamping block, the clamping block enters the clamping groove under the elastic force effect of the spring to fix the positioning pipe, and therefore the cleaning and replacing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cylinder head covers, in particular to an engine cylinder head cover structure. Background Art

[0002] The engine cylinder head cover is a cover shell covering the engine cylinder block, which can prevent external impurities from entering the engine and play a sealing role at the same time. The engine cylinder head cover is generally connected to the cylinder head by bolts so that it can cover and seal the cylinder head and keep the engine oil inside the engine. Although most of the oil can be separated in the existing oil-gas separation structure, the separated oil is usually directly returned to the main chamber of the engine. The separated oil usually contains some impurities. If the impurities are returned to the main chamber of the engine together, it will affect the quality of the remaining engine oil and thus affect the overall performance of the engine.

[0003] In the prior art, for example, an engine cylinder head cover in Chinese Patent CN 216447020 U includes a cover body. An exhaust port is provided on the cover body. An inwardly concave installation groove is provided on the top surface of the inner cavity of the cover body, and one end of the installation groove communicates with the exhaust port. A support plate is connected to the opening of the installation groove. An air inlet is provided at one end of the support plate away from the exhaust port. A first baffle is provided on the upper end surface of the support plate. A first oil collecting pipe is provided on the rear side near the air inlet at the lower end surface of the support plate, and a U-shaped oil collecting part is provided at the lower end of the first oil collecting pipe; a second oil collecting pipe with an oil return valve is also provided on the support plate; a filter cotton positioning pipe filled inside is provided outside the oil inlet of each second oil collecting pipe on the support plate, and a plurality of filter holes are distributed on the outer wall of the positioning pipe. The utility model provides an engine cylinder head cover with simple structure, high oil-gas separation efficiency, and can remove impurities from the separated oil to ensure the purity of the oil returned to the main chamber. However, the patent still has the following problems.

[0004] In the above patent, although the filter cotton positioning pipe is provided to remove impurities from the separated oil to ensure the purity of the oil returned to the main chamber, after long-term use, the filter holes on the positioning pipe may be blocked by impurities, so it needs to be cleaned. Since the positioning pipe is installed on the support plate, it is inconvenient for the staff to clean and not convenient for replacement. Summary of the Utility Model

[0005] The utility model mainly provides an engine cylinder head cover structure that is convenient for replacing the positioning pipe and improving the cleaning efficiency.

[0006] To achieve the above object, the utility model adopts the following technical scheme: An engine cylinder head cover structure, comprising: a support plate, two slots are opened at the top of the support plate, limiting grooves are opened on the inner walls of the two slots, springs are fixedly installed on the inner walls of the two limiting grooves, clamping blocks are fixedly installed at the ends of the two springs close to the slots, through openings are penetrated through the inner walls of the two limiting grooves, pulling plates are fixedly installed on the outer walls of the two clamping blocks, the two pulling plates are respectively slidably connected with the two through openings, inserting blocks are slidably installed in the two slots respectively, card slots are penetrated through the outer walls of the two inserting blocks, the two card slots are respectively slidably connected with the two clamping blocks, positioning tubes are fixedly installed at the tops of the two inserting blocks, and a plurality of uniformly distributed filtering holes are penetrated through the outer walls of the two positioning tubes.

[0007] Preferably, two connecting grooves are opened at the bottom of the support plate, and internal threads are opened on the inner walls of the two connecting grooves for connecting with the threaded rings.

[0008] Preferably, threaded rings are screwed in the two connecting grooves respectively, protective covers are fixedly installed at the bottoms of the two threaded rings, and sealing rings are fixedly installed on the outer walls of the two protective covers to prevent oil stains from entering the through openings and affecting the movement of the clamping blocks.

[0009] Preferably, two openings are penetrated through the top of the support plate, two oil collecting pipes are fixedly installed at the bottom of the support plate, and oil return valves are arranged at the bottoms of the two oil collecting pipes. When the oil liquid in the oil collecting pipes reaches a certain capacity, that is, when the opening pressure of the oil return valves is reached, the oil return valves automatically open, and the oil liquid flows back to the main chamber.

[0010] Preferably, an air inlet is penetrated through the top of the support plate, a second baffle and two first baffles are fixedly installed at the top of the support plate, and the two first baffles are arranged in a front-back dislocation along the width direction of the support plate, thereby extending the flow path of the mixed oil and gas, increasing the contact area between the mixed oil and gas and each baffle, and improving the oil-gas separation efficiency.

[0011] Preferably, a plurality of threaded holes are penetrated through the top of the support plate for fixing the support plate, and filter cotton is arranged in the two positioning tubes for filtering the oil liquid.

[0012] Preferably, the outer walls of the two inserting blocks are respectively attached to the inner walls of the two slots, and the two clamping blocks are respectively attached to the inner walls of the two card slots to prevent the inserting blocks from shaking after entering the slots, thereby causing the mixed oil and gas to enter the slots.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are as follows.

[0014] 1. In the present utility model, during replacement, the staff member pulls the pull plate, which drives the clamping block to move. The clamping block leaves the clamping groove, and the spring is compressed. At this time, the staff member can remove the positioning tube for cleaning and replacement. During installation, the staff member inserts the insertion block into the insertion slot. The insertion block contacts the inclined surface of the clamping block, and the clamping block is squeezed into the limiting groove. When the clamping groove moves beside the clamping block, the clamping block enters the clamping groove under the elastic force of the spring to fix the positioning tube. In this way, the cleaning and replacement efficiency can be improved.

[0015] 2. In the present utility model, during replacement, the staff member removes the support plate and then rotates the protective cover. The protective cover drives the threaded ring to rotate in the connection groove until the threaded ring leaves the connection groove. During installation, the staff member inserts the threaded ring into the connection groove and rotates the threaded ring until the sealing ring contacts the support plate. At this time, the protective cover can prevent oil stains from entering the through hole and affecting the movement of the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an overall three-dimensional view of a cylinder head cover structure proposed by the present utility model;

[0017] Figure 2 is another perspective view of a cylinder head cover structure proposed by the present utility model;

[0018] Figure 3 is a cross-sectional view of the support plate of a cylinder head cover structure proposed by the present utility model;

[0019] Figure 4 is a three-dimensional view of the threaded ring of a cylinder head cover structure proposed by the present utility model.

[0020] Legend: 1. Support plate; 2. Threaded hole; 3. Air inlet; 4. First baffle; 5. Second baffle; 6. Positioning tube; 7. Filter cotton; 8. Oil collecting pipe; 9. Oil return valve; 10. Protective cover; 11. Opening; 12. Insertion slot; 13. Insertion block; 14. Limiting groove; 15. Clamping groove; 16. Spring; 17. Clamping block; 18. Pull plate; 19. Through hole; 20. Connection groove; 21. Filter hole; 22. Sealing ring; 23. Threaded ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a structure of an engine cylinder head cover, including: a support plate 1, two slots 12 are opened at the top of the support plate 1, limiting grooves 14 are opened on the inner walls of the two slots 12, springs 16 are fixedly installed on the inner walls of the two limiting grooves 14, blocks 17 are fixedly installed at one ends of the two springs 16 close to the slots 12, through openings 19 are respectively opened through the inner walls of the two limiting grooves 14, pull plates 18 are fixedly installed on the outer walls of the two blocks 17, the two pull plates 18 are respectively slidably connected with the two through openings 19, inserting blocks 13 are slidably installed in the two slots 12 respectively, card slots 15 are respectively opened through the outer walls of the two inserting blocks 13, the two card slots 15 are respectively slidably connected with the two blocks 17, positioning tubes 6 are fixedly installed at the tops of the two inserting blocks 13, and a plurality of uniformly distributed filtering holes 21 are respectively opened through the outer walls of the two positioning tubes 6.

[0024] As Figure 3 shown, two connecting grooves 20 are opened at the bottom of the support plate 1, and internal threads are opened on the inner walls of the two connecting grooves 20 for connecting with a threaded ring 23.

[0025] As Figure 4 shown, threaded rings 23 are respectively threadedly connected in the two connecting grooves 20, protective covers 10 are fixedly installed at the bottoms of the two threaded rings 23, sealing rings 22 are fixedly installed on the outer walls of the two protective covers 10 to prevent oil stains from entering the through openings 19 and affecting the movement of the blocks 17.

[0026] As Figure 1 and Figure 2 shown, two openings 11 are respectively opened through the top of the support plate 1, two oil collecting pipes 8 are fixedly installed at the bottom of the support plate 1, oil return valves 9 are respectively arranged at the bottoms of the two oil collecting pipes 8, when the oil liquid in the oil collecting pipes 8 reaches a certain capacity, that is, when the opening pressure of the oil return valves 9 is reached, the oil return valves 9 automatically open, and the oil liquid flows back to the main chamber.

[0027] As Figure 1 shown, an air inlet 3 is respectively opened through the top of the support plate 1, a second baffle 5 and two first baffles 4 are fixedly installed at the top of the support plate 1, the two first baffles 4 are arranged in a front-back dislocation along the width direction of the support plate 1, thereby extending the flow path of the mixed oil and gas, increasing the contact area between the mixed oil and gas and each baffle, and improving the oil and gas separation efficiency.

[0028] As Figure 1 andFigure 4 As shown, a plurality of threaded holes 2 are formed through the top of the support plate 1 for fixing the support plate 1. Filter cotton 7 is arranged inside each of the two positioning tubes 6 for filtering the oil fluid.

[0029] As Figure 3 shown, the outer walls of the two insertion blocks 13 are respectively in contact with the inner walls of the two insertion slots 12, and the two clamping blocks 17 are respectively in contact with the inner walls of the two clamping slots 15, preventing the insertion block 13 from shaking after entering the insertion slot 12, which may cause the mixed oil and gas to enter the insertion slot 12.

[0030] The usage method and working principle of this device: When in use, after the mixed oil and gas are separated once by the first baffle 4 and then separated again by the side walls of the corresponding positioning tubes 6 through collision, the oil fluid passes through each filter hole 21 and accumulates on the filter cotton 7. As the oil fluid increases, the oil fluid on the filter cotton 7 flows downward into the oil collecting pipe 8. And when the oil fluid in the oil collecting pipe 8 reaches a certain capacity, that is, reaches the opening pressure of the oil return valve 9, the oil return valve 9 automatically opens, and the oil fluid flows back into the main chamber. When replacing, the staff removes the support plate 1, then rotates the protective cover 10, and the protective cover 10 drives the threaded ring 23 to rotate in the connection groove 20 until the threaded ring 23 leaves the connection groove 20. Then the staff pulls the pull plate 18, and the pull plate 18 drives the clamping block 17 to move. The clamping block 17 leaves the clamping slot 15, and the spring 16 is compressed. At this time, the staff can remove the positioning tube 6 and clean and replace it. When installing, the staff inserts the insertion block 13 into the insertion slot 12, and the insertion block 13 contacts the inclined surface of the clamping block 17. The clamping block 17 is squeezed into the limiting groove 14. When the clamping slot 15 moves beside the clamping block 17, the clamping block 17 enters the clamping slot 15 under the elastic force of the spring 16 to fix the positioning tube 6. In this way, the cleaning and replacement efficiency can be improved. Finally, the staff inserts the threaded ring 23 into the connection groove 20 and rotates the threaded ring 23 until the sealing ring 22 contacts the support plate 1. At this time, the protective cover 10 can prevent the oil stain from entering the through hole 19 and affecting the movement of the clamping block 17.

[0031] The above are only the preferred embodiments of the present invention, and are not limitations to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An engine cylinder head cover structure, characterized in that: include: A support plate (1), wherein two slots (12) are provided at the top of the support plate (1), and the inner walls of the two slots (12) are provided with limiting grooves (14), and the inner walls of the two limiting grooves (14) are fixedly installed with springs (16), and the ends of the two springs (16) close to the slots (12) are fixedly installed with clamping blocks (17), and the inner walls of the two limiting grooves (14) are penetrated with through openings (19), and the outer walls of the two clamping blocks (17) are fixedly installed with pull plates (18), and the two pull plates (18) are respectively slidably connected with the two through openings (19), and the insides of the two slots (12) are slidably installed with plug-in blocks (13), and the outer walls of the two plug-in blocks (13) are penetrated with clamping grooves (15), and the two clamping grooves (15) are respectively slidably connected with the two clamping blocks (17), and the tops of the two plug-in blocks (13) are fixedly installed with positioning tubes (6), and the outer walls of the two positioning tubes (6) are penetrated with a plurality of evenly distributed filtering holes (21).

2. The engine cylinder head cover structure according to claim 1, characterized in that: Two connection grooves (20) are provided at the bottom of the support plate (1), and inner walls of the two connection grooves (20) are provided with internal threads.

3. The engine cylinder head cover structure according to claim 2, characterized in that: The insides of the two connection grooves (20) are both threadedly connected to thread rings (23), the bottoms of the two thread rings (23) are both fixedly mounted with protective covers (10), and the outer walls of the two protective covers (10) are both fixedly mounted with sealing rings (22).

4. The engine cylinder head cover structure according to claim 1, characterized in that: Two openings (11) are formed through the top of the support plate (1), two oil collecting pipes (8) are fixedly installed at the bottom of the support plate (1), and oil return valves (9) are arranged at the bottom of the two oil collecting pipes (8).

5. The engine cylinder head cover structure according to claim 2, characterized in that: An air inlet (3) is provided through the top of the support plate (1), and a second baffle plate (5) and two first baffle plates (4) are fixedly mounted on the top of the support plate (1).

6. The engine cylinder head cover structure according to claim 1, characterized in that: A plurality of threaded holes (2) are provided through the top of the support plate (1), and filter cotton (7) is arranged inside the two positioning tubes (6).

7. The engine cylinder head cover structure according to claim 1, characterized in that: The outer walls of the two inserting blocks (13) are respectively fitted with the inner walls of the two slots (12), and the two clamping blocks (17) are respectively fitted with the inner walls of the two clamping slots (15).

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