Valve packing pressing cap locking structure

Abstract

The utility model discloses a valve packing pressing cap locking structure, which relates to the technical field of pressing cap locking, and comprises a rotating shaft, the left side of the outer surface of the rotating shaft is respectively provided with a first thread groove and a second thread groove from left to right; the surface of the first threaded groove and the surface of the second threaded groove are in threaded connection with a first locking nut and a second locking nut respectively, the middle end of the surface of the rotating shaft is connected with a driving ring in a clamped mode, and the left side and the right side of the driving ring are provided with a first deep groove ball bearing and a second deep groove ball bearing respectively. By means of the first locking nut, the second locking nut and the corresponding threaded grooves, it can be guaranteed that the packing gland can be firmly locked after being installed, the sealing performance and stability of the valve are improved, the design of the driving ring and the deep groove ball bearing enables the valve to rotate more stably, and the service life of the valve is prolonged. And meanwhile, the connection mode of the clamping block, the clamping groove and the belt pulley is beneficial for ensuring stable and reliable operation of the valve, and the use efficiency and the service life of the valve are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cap locking, in particular to a valve packing cap locking structure. BACKGROUND

[0002] The valve packing cap is an important component of the valve, which is used for fixing the packing in the valve to ensure the sealing performance of the valve. The packing is usually used in the packing chamber of the valve to fill the gap between the packing chamber and the valve stem, thereby playing a sealing role. The packing cap is used to press the packing tightly to make it fully fill the packing chamber, prevent medium leakage, and ensure the normal operation of the valve.

[0003] The existing locking structure mostly involves multiple components, such as locking nuts, threaded grooves, drive rings, deep groove ball bearings, clamping blocks, and clamping grooves. Since the movement and interaction of multiple components are involved in the device, some components such as threaded buffer rings and gasket grooves are prone to wear and damage, which may require regular replacement or maintenance. This may result in frequent maintenance requirements, increasing the use cost and maintenance time. Therefore, we propose a valve packing cap locking structure. SUMMARY

[0004] The utility model discloses a valve packing cap locking structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a valve packing cap locking structure, comprising a rotating shaft, the rotating shaft left side face fixedly connected with gasket, the rotating shaft outer surface left side is equipped with first threaded groove and second threaded groove from left to right respectively, first threaded groove and second threaded groove surface are equipped with first locking nut and second locking nut respectively, the rotating shaft surface middle end is connected with drive ring, drive ring left and right sides are equipped with first deep groove ball bearing and second deep groove ball bearing respectively.

[0006] As a further scheme of the utility model: the first locking nut left and right sides are both equipped with round hole, the diameter of the round hole on the left side is smaller than that on the right side.

[0007] As a further scheme of the utility model: the first locking nut inner wall is equipped with gasket groove, the gasket surface is attached to the gasket groove inner wall.

[0008] As a further scheme of the utility model: the rotating shaft inner wall left and right ends are both connected with threaded buffer ring, the threaded buffer ring inner wall is equipped with threaded groove, the number of the threaded buffer ring on the left side is three, and the number of the threaded buffer ring on the right side is four.

[0009] As a further scheme of the utility model: the rotating shaft surface is fixedly connected with a clamping block, a clamping groove matched with the clamping block is formed in the inner wall of the driving ring, and the clamping block is clamped in the clamping groove.

[0010] As a further scheme of the utility model: a belt pulley for connecting the driving belt is arranged outside the driving ring, and the driving ring is located between the first deep groove ball bearing and the second deep groove ball bearing.

[0011] As a further scheme of the utility model: a clamping hole for limiting is formed in the rotating shaft surface.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The first locking nut and the second locking nut and the corresponding thread grooves are arranged, so that the packing gland can be firmly locked after installation, the sealing property and stability of the valve are improved, the design of the driving ring and the deep groove ball bearing can make the rotary motion of the valve more stable, the clamping block and the clamping groove and the connecting mode of the belt pulley are also helpful to ensure the stable and reliable operation of the valve, and the use efficiency and service life of the valve are improved.

[0014] 2. The threaded buffer ring and the gasket groove are used, so that the parts can be conveniently replaced and maintained, the valve is more convenient and reliable in daily use, meanwhile, the clamping hole and the clamping block are also helpful to limit and adjust the motion range of the valve, and the adjustability and maintainability of the valve are improved.

[0015] Other advantages, objects and features of the utility model will be described in the subsequent description to some extent, and will be apparent to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. DRAWINGS

[0016] Figure 1 It is an overall three-dimensional schematic view in the embodiment of the utility model;

[0017] Figure 2 It is an overall front schematic view in the embodiment of the utility model;

[0018] Figure 3 It is an overall front cross-sectional schematic view in the embodiment of the utility model;

[0019] Figure 4 It is a first locking nut three-dimensional schematic view in the embodiment of the utility model;

[0020] Figure 5 It is a first locking nut front schematic view in the embodiment of the utility model.

[0021] In the figure: 1, rotating shaft; 2, gasket; 3, first locking nut; 4, second locking nut; 5, driving ring; 6, first deep groove ball bearing; 7, second deep groove ball bearing; 8, threaded buffer ring; 9, pulley. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] Example one, please refer to the attached Figure 1 -attached Figure 5 A valve packing cap locking structure, comprising a rotating shaft 1, the left side of the rotating shaft 1 is fixedly connected with a gasket 2, the left side of the outer surface of the rotating shaft 1 is provided with a first thread groove and a second thread groove from left to right, respectively, the surfaces of the first thread groove and the second thread groove are respectively threadedly connected with a first locking nut 3 and a second locking nut 4, the surface of the rotating shaft 1 is connected with a driving ring 5 at the middle end, and the driving ring 5 is provided with a first deep groove ball bearing 6 and a second deep groove ball bearing 7 on the left and right sides, respectively.

[0024] In this embodiment, the left and right sides of the first locking nut 3 are provided with round holes, and the diameter of the left round hole is smaller than that of the right round hole;

[0025] Through the combination of the rotating shaft 1, the gasket 2, the thread groove, the locking nut and the deep groove ball bearing, the design of the round hole of the first locking nut 3 is ingenious, and the diameter difference between the left and right sides helps to lock firmly. This structure not only improves the sealing and stability of the valve, but also facilitates maintenance and replacement of parts, providing convenience for reliable operation and long-term use of the valve.

[0026] In this embodiment, the inner wall of the first locking nut 3 is provided with a gasket groove, and the surface of the gasket 2 is tightly fitted with the inner wall of the gasket groove;

[0027] Through the setting of the gasket 2 groove and the tight fitting of the gasket 2, the loosening or air leakage of the packing cap during use can be effectively prevented, the sealing effect of the valve is improved, and the normal operation and safe use of the valve are ensured.

[0028] In this embodiment, the left and right ends of the inner wall of the rotating shaft 1 are connected with threaded buffer rings 8, the inner wall of the threaded buffer ring 8 is provided with a thread groove, the number of the left threaded buffer ring 8 is three, and the number of the right threaded buffer ring 8 is four;

[0029] The threaded buffer ring 8 clamped at the left and right ends of the inner wall of the rotating shaft 1 plays a buffering and protecting role in the valve packing gland locking structure. Through the setting of the threaded buffer ring 8, the vibration and impact force generated during the movement of the rotating shaft 1 can be effectively absorbed, the damage and wear of the valve structure are reduced, and the service life of the valve is prolonged.

[0030] Specifically, by setting the first locking nut 3 and the second locking nut 4 and the corresponding threaded grooves, it can be ensured that the packing gland can be firmly locked after installation, the sealing performance and stability of the valve are improved, the design of the driving ring 5 and the deep groove ball bearing can make the rotating movement of the valve more stable, and the connection mode of the clamping block, the clamping groove and the belt pulley 9 also helps to ensure the stable and reliable operation of the valve, and improves the use efficiency and service life of the valve.

[0031] Embodiment two, please refer to the attached Figure 1 -attached Figure 5 A valve packing gland locking structure, comprising a rotating shaft 1, the left side of the rotating shaft 1 is fixedly connected with a gasket 2, the left side of the outer surface of the rotating shaft 1 is provided with a first threaded groove and a second threaded groove from left to right, the first threaded groove and the second threaded groove are respectively threaded connected with a first locking nut 3 and a second locking nut 4, the surface of the rotating shaft 1 is clamped with a driving ring 5, and the left and right sides of the driving ring 5 are respectively provided with a first deep groove ball bearing 6 and a second deep groove ball bearing 7.

[0032] In this embodiment, the surface of the rotating shaft 1 is fixedly connected with a clamping block, and the inner wall of the driving ring 5 is provided with a clamping groove matched with the clamping block, and the clamping block is clamped in the clamping groove.

[0033] By fixing the clamping block on the surface of the rotating shaft 1 and clamping it in the clamping groove in the inner wall of the driving ring 5, the driving ring 5 and the rotating shaft 1 can be effectively combined, and the synchronous movement of the two during work can be ensured.

[0034] In this embodiment, a belt pulley 9 for connecting a driving belt is arranged outside the driving ring 5, and the driving ring 5 is located between the first deep groove ball bearing 6 and the second deep groove ball bearing 7.

[0035] Through the belt pulley 9 connected to the driving ring 5, the opening and closing of the valve can be realized through belt transmission, so as to realize remote control of the operation of the valve. This design can make the operation of the valve more convenient and flexible, and is especially suitable for occasions that need to be adjusted or remotely controlled frequently.

[0036] In this embodiment, a clamping hole for limiting is arranged on the surface of the rotating shaft 1.

[0037] The limiting pin or other limiting device can be arranged at a specific position, and when the rotating shaft 1 rotates, the limiting pin or device can be inserted into the clamping hole, thereby limiting the rotating range of the rotating shaft 1, and ensuring that the opening and closing of the valve are carried out within a set range.

[0038] Specifically, the threaded buffer ring 8 and the gasket 2 groove are used to facilitate the replacement and maintenance of parts, so that the valve is more convenient and reliable in daily use, and the clamping hole and the clamping block are arranged to help limit and adjust the movement range of the valve, thereby improving the adjustability and maintainability of the valve.

[0039] Working principle:

[0040] First, prepare the materials and tools, ensure that all parts are complete, connect the gasket 2 to the left side of the rotating shaft 1, open the first and second threaded grooves on the outer surface of the rotating shaft 1, and connect the first and second locking nuts 4, clamp the drive ring 5 on the surface of the rotating shaft 1, and install the first and second deep groove ball bearings 7, set the round hole of the first locking nut 3 and the gasket 2 groove according to requirements, install the threaded buffer ring 8 and the clamping block, set the clamping hole for limiting, then thread the structure to be locked through the threaded buffer ring 8 connected inside the rotating shaft 1, then, finally, install the pulley 9 of the driving belt, and drive the pulley 9 to rotate by starting the external driving device, and due to the arrangement of the first and second deep groove ball bearings 7, the rotating shaft 1 can drive the tightening structure to rotate stably, and thus the whole working process is completed.

[0041] The above, front, rear, left, right, up and down are based on the drawings of the specification Figure 1 As a standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application.

[0043] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, power supply system and control system of the device is not completely described in the technical principle of the design, and under the premise that the above-mentioned principle of the present application is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0044] The standard parts used therein can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known to the person skilled in the art, the structure and principle thereof are known to the person skilled in the art through technical manual or through conventional experimental method.

[0045] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments.

[0046] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A valve packing cap locking structure, comprising a rotating shaft (1), characterized in that: A gasket (2) is fixedly connected to the left side of the rotating shaft (1); a first thread groove and a second thread groove are respectively provided on the left side of the outer surface of the rotating shaft (1) from left to right; a first locking nut (3) and a second locking nut (4) are respectively threadedly connected to the surfaces of the first thread groove and the second thread groove; a driving ring (5) is clamped at the middle end of the surface of the rotating shaft (1); a first deep groove ball bearing (6) and a second deep groove ball bearing (7) are respectively provided on the left and right sides of the driving ring (5).

2. A valve packing cap locking structure according to claim 1, characterized in that: Circular holes are provided on both the left and right sides of the first locking nut (3), and the diameter of the circular hole on the left side is smaller than the diameter of the circular hole on the right side.

3. The valve packing cap locking structure according to claim 1, characterized in that: A gasket groove is provided on the inner wall of the first locking nut (3), and the surface of the gasket (2) is in contact with the inner wall of the gasket groove.

4. The valve packing cap locking structure according to claim 1, characterized in that: The left and right ends of the inner wall of the rotating shaft (1) are both clamped with threaded buffer rings (8), and the inner walls of the threaded buffer rings (8) are provided with thread grooves. The number of the threaded buffer rings (8) on the left side is three, and the number of the threaded buffer rings (8) on the right side is four.

5. The valve packing cap locking structure according to claim 1, characterized in that: A clamping block is fixedly connected to the surface of the rotating shaft (1), and a clamping groove adapted to the clamping block is provided on the inner wall of the driving ring (5), and the clamping block is clamped inside the clamping groove.

6. The valve packing cap locking structure according to claim 1, characterized in that: A pulley (9) for connecting a driving belt is provided on the outside of the driving ring (5), and the driving ring (5) is located between the first deep groove ball bearing (6) and the second deep groove ball bearing (7).

7. The valve packing cap locking structure according to claim 1, characterized in that: A clamping hole for limiting position is provided on the surface of the rotating shaft (1).

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