Cylinder cover air tightness detection device

Abstract

The utility model relates to the technical field of engine pump covers, and discloses a cylinder cover air tightness detection device, which comprises a machine body, a portal frame arranged above the machine body, a lifting platform arranged on the portal frame, and an air tightness instrument arranged on the lifting platform and used for detecting air tightness, and is characterized in that a mounting groove is formed in the middle of the machine body; a moving plate for placing the cylinder cover is slidably mounted in the mounting groove; a sliding plate is arranged at the bottom of the moving plate, two sliding rods and a threaded driving rod are arranged in the mounting groove in parallel in the length direction of the mounting groove, and the moving plate is driven by the threaded driving rod to slide in the mounting groove. According to the utility model, the cylinder cover can be conveniently driven to move stably, hoisting equipment can be conveniently used to lift or turn over the cylinder cover, and the detection efficiency of the air tightness of the cylinder cover can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine pump covers, in particular to a cylinder cover air tightness detection device. Background Art

[0002] The cylinder head is a structure that seals the engine. The sealing performance of the cylinder head directly affects the safety performance of the engine. The cylinder head must be tested for airtightness before being assembled to the engine. Before the test, the holes on the surface of the engine cylinder head need to be blocked with sealing plugs, and a hole is reserved for intake testing. Usually, the space of the cylinder head airtightness testing equipment is limited, and it is inconvenient to flip or move the cylinder head to check the sealing status of each hole on the cylinder head. At the same time, the overall weight of the cylinder head is relatively large. When the cylinder head tilts or moves to one side as a whole, it may be necessary to use lifting equipment to move the cylinder head. However, since the airtightness tester is usually installed directly above the cylinder head, it affects the movement of the cylinder head when the equipment is moved up and down. Utility Model Content

[0003] The purpose of the utility model is to provide a cylinder head air tightness detection device to solve the problem proposed in the above background technology that the space in the cylinder head air tightness detection equipment is usually limited, and it is inconvenient to flip or move the cylinder head to check the sealing conditions of various holes on the cylinder head; at the same time, the overall weight of the cylinder head is relatively large. When the cylinder head tilts or moves to one side as a whole, it may be necessary to use a lifting device to move the cylinder head. However, since the airtightness tester is usually installed directly above the cylinder head, the movement of the cylinder head is affected when the equipment is moved up and down.

[0004] To achieve the above object, the utility model provides the following technical solutions: a cylinder head air tightness detection device, comprising a machine body, a gantry is arranged above the machine body, a lifting platform is arranged on the gantry, an airtightness instrument for detecting air tightness is arranged on the lifting platform, and the utility model is characterized in that a mounting groove is arranged in the middle of the machine body, and a movable plate for placing the cylinder head is slidably installed inside the mounting groove;

[0005] A sliding plate is arranged at the bottom of the movable plate, two sliding rods and a threaded driving rod are arranged in parallel inside the mounting groove along the length direction of the mounting groove, and the movable plate slides inside the mounting groove driven by the threaded driving rod.

[0006] Furthermore, a placement groove is arranged on the movable plate, and two limit plates are slidably installed on both sides of the placement groove, and the end surfaces of the two limit plates which are away from each other are both provided with a pushing mechanism.

[0007] Furthermore, the end surfaces of the limiting plates that are away from each other are both provided with mounting rods, the movable plate is provided with a sliding groove for guiding the sliding of the mounting rods, and one end of the pushing mechanism is connected to the mounting rods.

[0008] Furthermore, the pushing mechanism includes a fixed block fixedly installed on the side wall of the mounting groove, the fixed block is located in the middle of the side wall of the mounting groove, and rotating connecting blocks are respectively provided on both sides of the fixed block, and the side surfaces of the rotating connecting blocks are slidably connected to the side walls of the mounting groove, and a double-headed threaded rod is rotatably installed in the middle of the fixed block for driving the two rotating connecting blocks to move closer to or away from each other, and a connecting rod is rotatably provided on the side of each rotating connecting block, and the other end of the connecting rod is rotatably connected to the mounting rod; the top view projection shape of the two connecting rods is an eight-shaped shape symmetrically distributed on both sides of the fixed block.

[0009] Furthermore, the end surfaces of the two limiting plates facing each other are both provided with limiting grooves, and anti-slip pads are provided inside the limiting grooves.

[0010] Furthermore, a telescopic member is provided on the gantry, and the telescopic member is used to drive the lifting platform to move up and down.

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

[0012] The utility model installs a movable plate slidably on a frame, and the movable plate can conveniently enter or move out of a position below the airtightness instrument, can conveniently drive the cylinder head to move smoothly, can conveniently use a lifting device to lift or flip the cylinder head, and can improve the detection efficiency of the airtightness of the cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a cylinder head air tightness detection device of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of a cylinder head air tightness detection device from another perspective of the utility model;

[0015] Figure 3 This is a schematic diagram of the bottom structure of a movable plate of a cylinder head air tightness detection device of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the internal structure of a movable plate of a cylinder head air tightness detection device.

[0017] In the figure: 1. body; 101. mounting groove; 11. slide rod; 12. threaded drive rod; 2. movable plate; 201. placement groove; 202. slide groove; 21. limit plate; 22. sliding plate; 23. mounting rod; 24. connecting rod; 25. fixed block; 26. double-headed threaded rod; 27. rotating connecting block; 3. gantry; 4. telescopic part; 5. lifting platform; 6. airtight instrument. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] See also Figure 1-Figure 4 The utility model provides a technical solution: a cylinder head air tightness detection device, comprising a body 1, a gantry 3 is arranged above the body 1, a lifting platform 5 is arranged on the gantry 3, and an airtightness instrument 6 for detecting air tightness is arranged on the lifting platform 5, characterized in that a mounting groove 101 is arranged in the middle of the body 1, and a movable plate 2 for placing the cylinder head is slidably installed inside the mounting groove 101;

[0020] A sliding plate 22 is provided at the bottom of the movable plate 2 , and two sliding rods 11 and a threaded driving rod 12 are provided in parallel inside the mounting groove 101 along the length direction of the mounting groove 101 . The movable plate 2 slides inside the mounting groove 101 driven by the threaded driving rod 12 .

[0021] In the utility model, during actual use, the threaded driving rod 12 is first rotated to drive the movable plate 2 to move to the side away from the bottom of the gantry 3, and then the cylinder head is placed on the movable plate 2 using a lifting device and the cylinder head is fixed, while the redundant holes on the cylinder head are blocked, and then the threaded driving rod 12 is rotated again to drive the movable plate 2 to move, and the cylinder head is moved to the bottom of the airtightness instrument 6 for airtightness detection. During use, the cylinder head can be conveniently driven to move smoothly, and the lifting equipment can be conveniently used to lift or flip the cylinder head, which can improve the efficiency of the cylinder head airtightness detection.

[0022] Furthermore, a placement groove 201 is provided on the movable plate 2, and two limiting plates 21 are slidably installed on both sides of the placement groove 201, and the end surfaces of the two limiting plates 21 that are away from each other are both provided with a pushing mechanism.

[0023] Furthermore, the end surfaces of the limiting plates 21 that are away from each other are both provided with mounting rods 23 , the movable plate 2 is provided with a sliding groove 202 for guiding the mounting rods 23 to slide, and one end of the pushing mechanism is connected to the mounting rods 23 .

[0024] Furthermore, the pushing mechanism includes a fixed block 25 fixedly installed on the side wall of the mounting groove 101, the fixed block 25 is located in the middle of the side wall of the mounting groove 101, and rotating connecting blocks 27 are respectively arranged on both sides of the fixed block 25. The side of the rotating connecting block 27 is slidingly connected to the side wall of the mounting groove 101, and a double-headed threaded rod 26 is rotatably installed in the middle of the fixed block 25 for driving the two rotating connecting blocks 27 to move closer to or away from each other. A connecting rod 24 is rotatably arranged on the side of each rotating connecting block 27, and the other end of the connecting rod 24 is rotatably connected to the mounting rod 23; the top view projection shape of the two connecting rods 24 is symmetrically distributed in an eight-shaped shape on both sides of the fixed block 25.

[0025] Furthermore, the end surfaces of the two limit plates 21 facing each other are provided with limit grooves, and anti-skid pads are provided inside the limit grooves; by providing the anti-skid pads, the cylinder head position can be prevented from being offset during the clamping process, thereby improving the stability of the clamping.

[0026] Furthermore, a telescopic member 4 is provided on the gantry 3 , and the telescopic member 4 is used to drive the lifting platform 5 to move up and down.

[0027] Working principle: By setting a mounting groove 101 on the movable plate 2 and setting a limit plate 21 inside the mounting groove 101 for fixing the cylinder cover, the self-locking performance of the double-headed threaded rod 26 can be conveniently used to stably clamp the cylinder cover.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A cylinder head air tightness detection device, comprising a body (1), a gantry (3) is arranged above the body (1), a lifting platform (5) is arranged on the gantry (3), and an airtightness instrument (6) for detecting air tightness is arranged on the lifting platform (5), characterized in that: A mounting groove (101) is provided in the middle of the machine body (1), and a movable plate (2) for placing a cylinder cover is slidably mounted inside the mounting groove (101); A sliding plate (22) is arranged at the bottom of the movable plate (2), and two sliding rods (11) and a threaded driving rod (12) are arranged inside the mounting groove (101) in parallel along the length direction of the mounting groove (101). The movable plate (2) slides inside the mounting groove (101) driven by the threaded driving rod (12).

2. A cylinder head air tightness detection device according to claim 1, characterized in that: The movable plate (2) is provided with a placement groove (201), and two limit plates (21) are slidably mounted on both sides of the placement groove (201), and the end surfaces of the two limit plates (21) that are away from each other are both provided with a pushing mechanism.

3. A cylinder head air tightness detection device according to claim 2, characterized in that: The end surfaces of the two limit plates (21) that are away from each other are both provided with mounting rods (23), the movable plate (2) is provided with a sliding groove (202) for guiding the mounting rods (23) to slide, and one end of the pushing mechanism is connected to the mounting rods (23).

4. A cylinder head air tightness detection device according to claim 3, characterized in that: The pushing mechanism comprises a fixed block (25) fixedly mounted on the side wall of the mounting groove (101), the fixed block (25) being located in the middle of the side wall of the mounting groove (101), and rotatable connecting blocks (27) being respectively arranged on both sides of the fixed block (25), the side surfaces of the rotatable connecting blocks (27) being slidably connected to the side walls of the mounting groove (101), and a double-headed threaded rod (26) being rotatably mounted in the middle of the fixed block (25) for driving the two rotatable connecting blocks (27) to move closer to or away from each other, and a connecting rod (24) being rotatably mounted on the side surface of each rotatable connecting block (27), and the other end of the connecting rod (24) being rotatably connected to the mounting rod (23); the top view projection shape of the two connecting rods (24) is symmetrically distributed in an eight-shaped shape on both sides of the fixed block (25).

5. The cylinder head air tightness detection device according to claim 2, characterized in that: The end surfaces of the two limiting plates (21) facing each other are both provided with limiting grooves, and anti-slip pads are provided inside the limiting grooves.

6. The cylinder head air tightness detection device according to claim 1, characterized in that: The gantry (3) is provided with a telescopic member (4), and the telescopic member (4) is used to drive the lifting platform (5) to move up and down.

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