Precision casting of valve cover

Abstract

The utility model relates to the technical field of valve covers, and discloses a valve cover precision casting which comprises a cover body, a threaded groove is formed in the inner wall of the cover body, a fixing structure is arranged in the cover body, a clamping structure is arranged in the cover body, the fixing structure comprises a cavity, a clamping groove is formed in the clamping structure, and the clamping structure is arranged in the cavity. A cavity is formed in the inner wall of the cover body, a sleeve is fixedly connected to the inner wall of the cavity, and a movable rod is slidably connected to the outer wall of the sleeve; and the inner wall of the cavity is fixedly connected with the reset spring, and the end, away from the cavity, of the reset spring is fixedly connected with the movable rod. According to the precise valve cover casting, the fixing structure is arranged, the stability between the valve cover and the bolt can be improved through the fixing structure, then the stability between the valve cover and the valve is improved, the phenomenon that the bolt is loosened is avoided, the valve cover is prevented from falling off from the valve, and the practicability of the valve cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve covers, in particular to a precision casting of a valve cover. Background Art

[0002] With the continuous development of industry, the demand for valves is increasing. The valve cover is an important component of the valve and plays a sealing role.

[0003] The bonnet is the valve part that houses the stem seal and is used to connect or support the actuator.

[0004] At present, most of the valve covers on the market are installed together with the valve by bolts. However, the bolts are prone to loosening after long-term use, which leads to an unstable connection between the valve cover and the valve, and easily causes the valve cover to fall off the valve, thus affecting the normal use of the valve cover. Utility Model Content

[0005] The utility model aims to provide a valve cover precision casting to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a valve cover precision casting, comprising a cover body, the inner wall of the cover body is provided with a threaded groove, the interior of the cover body is provided with a fixing structure, the interior of the cover body is provided with a clamping structure, and the fixing structure comprises:

[0007] A cavity, wherein the inner wall of the cover body is provided with a cavity, the inner wall of the cavity is fixedly connected with a sleeve, and the outer wall of the sleeve is slidably connected with a movable rod;

[0008] A return spring, wherein the inner wall of the cavity is fixedly connected with a return spring, and one end of the return spring away from the cavity is fixedly connected to the movable rod, and the return spring can drive the movable rod to reset by its own elastic force;

[0009] A card block is fixedly connected to the outer wall of the movable rod, and the card block will move with the movement of the movable rod. The outer wall of the card block is penetrated by the movable rod and is fixedly connected to the penetration point of the movable rod. The outer wall of the cover body is penetrated by the movable rod, and the card block will move with the movement of the movable rod.

[0010] Preferably, the fixing structure comprises a push rod, and the outer wall of the moving rod is fixedly connected with the push rod, and the push rod moves with the movement of the moving rod.

[0011] Preferably, the inner wall of the cover body is rotatably connected with a turntable, and the turntable rotates along with the movement of the push rod.

[0012] Preferably, the outer wall of the turntable is hinged to the push rod.

[0013] Preferably, a connecting rod is fixedly connected to the outer wall of the turntable, and the connecting rod will perform a circular motion with the turntable as the center as the turntable rotates, and the other end of the connecting rod is fixedly connected to a clamping block.

[0014] Preferably, a rubber ring is attached to the inner wall of the cover.

[0015] Compared with the prior art, the utility model provides a valve cover precision casting, which has the following beneficial effects:

[0016] 1. The precision casting of the valve cover is provided with a fixing structure, which can increase the stability between the valve cover and the bolts, thereby improving the stability between the valve cover and the valve, thereby avoiding the phenomenon of bolts loosening, thereby avoiding the valve cover from falling off the valve, and improving the practicality of the valve cover.

[0017] 2. The valve cover precision casting is provided with a clamping structure. When the cover is installed on the valve, the clamping structure can squeeze the rubber ring through the clamping block, thereby improving the stability of the rubber ring, and further improving the stability of the cover after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the cover body of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cover body of the utility model;

[0020] Figure 3 A schematic diagram of a structure of a cover body of the utility model is shown in cross section;

[0021] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the inner A structure;

[0022] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of the inner B structure.

[0023] In the figure: 1, cover body; 2, threaded groove; 4, fixing structure; 41, cavity; 42, sleeve; 43, movable rod; 44, reset spring; 45, clamping block; 46, moving rod; 5, clamping structure; 51, push rod; 52, turntable; 53, connecting rod; 54, clamping block; 55, rubber ring. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a valve cover precision casting, including a cover body 1, the inner wall of the cover body 1 is provided with a threaded groove 2, the interior of the cover body 1 is provided with a fixing structure 4, and the interior of the cover body 1 is provided with a clamping structure 5.

[0025] The fixed structure 4 comprises: a cavity 41, a sleeve 42, a movable rod 43, a reset spring 44, a block 45, and a moving rod 46. The inner wall of the cover body 1 is provided with a cavity 41, and the inner wall of the cavity 41 is fixedly connected with a sleeve 42, and there are multiple groups of sleeves 42, and the multiple groups of sleeves 42 are all arranged in the cavity 41, and the multiple groups of sleeves 42 are distributed in a straight line, and the outer wall of the sleeve 42 is slidably connected with a movable rod 43, and there are multiple groups of movable rods 43, and each group of movable rods 43 is slidably connected to the inner wall of a different group of sleeves 42, and the multiple groups of movable rods 43 are distributed in a straight line, and the inner wall of the cavity 41 is fixedly connected with a reset spring 44, and there are multiple groups of reset springs 44, and each group of reset springs 44 is respectively located inside a different group of sleeves 42, and the reset spring 44 One end away from the cavity 41 is fixedly connected to the movable rod 43, and the reset spring 44 can drive the movable rod 43 to reset by its own elastic force. The outer wall of the movable rod 43 is fixedly connected with a block 45, and there are multiple groups of blocks 45, and each group of blocks 45 is fixedly connected to a different group of movable rods 43, and the blocks 45 will move with the movement of the movable rod 43. The outer wall of the block 45 is penetrated by a movable rod 46 and is fixedly connected to the penetration point of the movable rod 46. The movable rod 46 penetrates all the blocks 45, and each group of blocks 45 will move with the movement of the movable rod 46. The outer wall of the cover body 1 is penetrated by a movable rod 46.

[0026] The clamping structure 5 comprises: a push rod 51, a rotating disk 52, a connecting rod 53, a clamping block 54, and a rubber ring 55. The outer wall of the moving rod 46 is fixedly connected with the push rod 51, and the push rod 51 moves with the movement of the moving rod 46. The inner wall of the cover body 1 is rotatably connected with the rotating disk 52, and the rotating disk 52 rotates with the movement of the push rod 51. The outer wall of the rotating disk 52 is hinged to the push rod 51, and the outer wall of the rotating disk 52 is fixedly connected with the connecting rod 53, and the connecting rod 53 performs a circular motion with the rotating disk 52 as the center of the circle as the rotating disk 52 rotates. The other end of the connecting rod 53 is fixedly connected with the clamping block 54, and the clamping block 54 moves with the movement of the connecting rod 53. The inner wall of the cover body 1 is fitted with a rubber ring 55.

[0027] Working principle: by installing the cover body 1 on the valve, first move the moving rod 46 at this time, so that the block 45 moves close to the outer wall of the cover body 1 as the moving rod 46 moves. At this time, it is necessary to align the threaded groove 2 of the cover body 1 with the bolt on the valve and rotate it in the direction of the valve. At this time, the cavity 41 will rotate with the cover body 1 and perform a circular motion with the cover body 1 as the center. At this time, the sleeve 42 will perform a circular motion with the circular motion of the cavity 41, and the sleeve 42 will also move in the direction of the valve. At this time, the movable rod 43 will move with the movement of the sleeve 42, and the block 45 will move with the movement of the movable rod 43. At this time, the block 45 will move in the direction of the reset spring 44 due to the obstruction of the side wall of the bolt. When the cover body 1 is completely installed on the valve, release the moving rod 46 at this time. At this time, the reset spring 44 will push the block 45 to reset through its own elastic force, so that the block 45 is stuck in the gap between the bolts on the valve, thereby increasing the resistance between the cover body 1 and the valve, thereby preventing the cover body 1 from falling off the valve, thereby improving the stability of the cover body 1.

[0028] At the same time, when the moving rod 46 moves, the push rod 51 will move with the moving rod 46, and the push rod 51 will drive the turntable 52 to rotate. At this time, the connecting rod 53 will perform a circular motion with the turntable 52 as the center as the rotation of the turntable 52, and then drive the clamping block 54 to perform a circular motion through the connecting rod 53, and then fix the rubber ring 55 through the clamping block 54, thereby further improving the stability of the cover body 1.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A valve cover precision casting, comprising a cover body (1), characterized in that: The inner wall of the cover body (1) is provided with a threaded groove (2), the interior of the cover body (1) is provided with a fixing structure (4), the interior of the cover body (1) is provided with a clamping structure (5), and the fixing structure (4) comprises: A cavity (41), wherein the inner wall of the cover body (1) is provided with a cavity (41), the inner wall of the cavity (41) is fixedly connected to a sleeve (42), and the outer wall of the sleeve (42) is slidably connected to a movable rod (43); A return spring (44), wherein the inner wall of the cavity (41) is fixedly connected to the return spring (44), and one end of the return spring (44) away from the cavity (41) is fixedly connected to the movable rod (43); A clamping block (45) is fixedly connected to the outer wall of the movable rod (43), a movable rod (46) penetrates the outer wall of the clamping block (45) and is fixedly connected to the penetration point of the movable rod (46), and a movable rod (46) penetrates the outer wall of the cover body (1).

2. A valve cover precision casting according to claim 1, characterized in that: The fixed structure (4) comprises a push rod (51), and the outer wall of the moving rod (46) is fixedly connected to the push rod (51).

3. The valve cover precision casting according to claim 1, characterized in that: A rotating disk (52) is rotatably connected to the inner wall of the cover body (1).

4. A valve cover precision casting according to claim 3, characterized in that: The outer wall of the rotating disk (52) is hingedly connected to the push rod (51).

5. The valve cover precision casting according to claim 3, characterized in that: A connecting rod (53) is fixedly connected to the outer wall of the rotating disk (52), and a clamping block (54) is fixedly connected to the other end of the connecting rod (53).

6. The valve cover precision casting according to claim 1, characterized in that: A rubber ring (55) is attached to the inner wall of the cover body (1).

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