Self-locking structure of valve

Abstract

The utility model discloses a valve self-locking structure which comprises a valve body and a valve rod, the valve rod is arranged at the top of the valve body, one end of the valve rod is sleeved with a positioning sleeve, one end of the valve body is sleeved with a compression-resistant sleeve, the top end of the compression-resistant sleeve is provided with a protective sleeve, one end of the protective sleeve is sleeved with a limiting ferrule, one end of the positioning sleeve is sleeved with a positioning ring, and the other end of the positioning sleeve is sleeved with a locking ring. First arc-shaped blocks are arranged on the two sides of the positioning ring correspondingly, second arc-shaped blocks are arranged on the two sides of the limiting ferrule correspondingly, and through the arrangement of the compression-resistant sleeve, the protective sleeve, the limiting rods, clamping strips, inserting rods, a first sound absorption layer and a second sound absorption layer, when the valve rod and the valve body are installed, the positioning sleeve is gradually attached to the valve body, the two clamping strips are gradually embedded into the two limiting rods, and therefore the valve rod and the valve body can be fixed. The material has a loose and porous structure, so that sound waves can penetrate into the material, and sound energy is converted into heat energy through air molecule friction in pores, viscous resistance and mechanical vibration of fibers, so that the effect of absorbing sound is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking structures, in particular to a valve self-locking structure. Background Art

[0002] The valve self-locking structure is a special design designed to ensure that the valve can automatically lock and maintain its position under certain conditions to prevent unauthorized operation or accidental opening or closing due to external factors. The valve self-locking structure includes control valves. Control valves play a vital role in industrial automation systems and are used to regulate and control the flow of fluids. The implementation of the valve self-locking structure usually relies on mechanical, hydraulic or electronic devices that can monitor the status of the valve and activate the locking mechanism when necessary.

[0003] When the valve body and the positioning sleeve are installed, a large number of threaded holes are opened on the surfaces of both. The positioning sleeve needs to be continuously rotated to make the upper and lower threaded holes flush with each other, so that the bolt can be limited to its inside to realize the threaded rotation connection, and the valve body and the valve stem can be installed. Therefore, it is time-consuming to locate the threaded holes, which prolongs the installation time of the valve body and the valve stem. In addition, the noise of the flowing medium transported inside the valve body is relatively large, which not only affects the working environment, but also may cause harm to the health of the operators. The noise may also mask other important equipment sound signals, leading to misjudgment of the equipment operation status. For this reason, a valve self-locking structure is designed. Utility Model Content

[0004] The utility model aims to provide a valve self-locking structure to solve the problems in the above-mentioned background technology that it takes a long time to locate the threaded hole, which prolongs the installation time of the valve body and the valve stem, and the flow medium transported inside the valve body has a relatively large noise.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve self-locking structure, comprising a valve body and a valve stem, the valve stem is arranged at the top of the valve body, one end of the valve stem is sleeved with a positioning sleeve, one end of the valve body is sleeved with a pressure-resistant sleeve, the top of the pressure-resistant sleeve is provided with a protective sleeve, one end of the protective sleeve is sleeved with a limiting ring, one end of the positioning sleeve is sleeved with a positioning ring, first arc blocks are arranged on both sides of the positioning ring, second arc blocks are arranged on both sides of the limiting ring, limiting rods are arranged at the tops of the two second arc blocks, clamping strips are arranged at the bottoms of the two first arc blocks, a first sound-absorbing layer is arranged inside the protective sleeve, and a second sound-absorbing layer is arranged inside the pressure-resistant sleeve.

[0006] As a preferred technical solution of the utility model, one side of the two limit rods is provided with an insertion rod, and one side of the two clamping strips is provided with an insertion hole.

[0007] As a preferred technical solution of the utility model, one end of the two clamping strips is movably connected with one end of the two limit rods, and one end of the two insertion rods is respectively connected with the inside of the two insertion holes.

[0008] As a preferred technical solution of the present utility model, the diameters of the two limit rods are both larger than the diameters of the two clamping strips.

[0009] As a preferred technical solution of the utility model, the positioning ring is fixedly sleeved with one end of the positioning sleeve, and one side of the two first arc-shaped blocks is fixedly connected to the two sides of the positioning ring respectively.

[0010] As a preferred technical solution of the present utility model, the two first arc-shaped blocks are symmetrically distributed around the center position of the positioning circle.

[0011] As a preferred technical solution of the utility model, a wear-resistant layer is provided inside the protective sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a valve self-locking structure. By arranging a pressure-resistant sleeve, a protective sleeve, a limit rod, a clamping strip, an insertion rod, a first sound-absorbing layer and a second sound-absorbing layer, when the valve stem and the valve body are installed, the positioning sleeve gradually fits with the valve body, and the two clamping strips are gradually embedded in the two limit rods. At this time, the positioning sleeve and the threaded holes opened on the surface of the valve body fit with each other, which speeds up the alignment of the threaded holes, thereby improving the installation efficiency between the valve body and the valve stem. One end of the two insertion rods is sequentially embedded in the two insertion holes, and the two are connected by clamping, so that the limit rod and the clamping strip can be limited and fixed, and the firmness between the limit sleeve ring and the positioning ring is ensured, and the quality of the installation of the self-locking structure is improved. The first sound-absorbing layer and the second sound-absorbing layer are both made of polyester fiber sound-absorbing board, which has a loose and porous structure, so that sound waves can penetrate into the material, and the sound energy is converted into heat energy by the friction of air molecules in the pores, the viscous resistance and the mechanical vibration of the fiber, so as to achieve the effect of absorbing sound and reduce the noise when the valve body guides the flowing medium.

[0014] 2. The utility model provides a self-locking structure of a valve, which is provided with a positioning ring, a first arc block, a second arc block and a wear-resistant layer. The bottom of the limit rod is connected to the limit ring by relying on the second arc block, and the top of the clamping strip is connected to the positioning ring by relying on the first arc block. As the positioning sleeve moves up and down, the two clamping strips also move up and down, and the limit rod remains stable. The wear-resistant layer is made of wear-resistant alloy steel and has good wear resistance, which extends the service life of the pressure-resistant sleeve and the protective sleeve. The outer shells of both are made of aluminum alloy materials and have good pressure resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 For the utility model Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 It is a partial side view structural schematic diagram of the utility model;

[0018] Figure 4 It is a partial exploded view of the utility model;

[0019] Figure 5 It is a partial side cross-sectional structural schematic diagram of the utility model.

[0020] In the figure: 1. valve body; 2. valve stem; 3. pressure-resistant sleeve; 4. protective sleeve; 5. limit ring; 6. positioning sleeve; 7. positioning ring; 8. first arc block; 9. second arc block; 10. limit rod; 11. clamping strip; 12. plug rod; 13. plug hole; 14. first sound-absorbing layer; 15. wear-resistant layer; 16. second sound-absorbing layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution for a valve self-locking structure:

[0023] Embodiment 1:

[0024] like Figure 1-4As shown, a valve self-locking structure comprises a valve body 1 and a valve stem 2, the valve stem 2 is arranged on the top of the valve body 1, one end of the valve stem 2 is sleeved with a positioning sleeve 6, one end of the valve body 1 is sleeved with a pressure-resistant sleeve 3, the top of the pressure-resistant sleeve 3 is arranged with a protective sleeve 4, one end of the protective sleeve 4 is sleeved with a limiting ring 5, one end of the positioning sleeve 6 is sleeved with a positioning ring 7, first arc blocks 8 are arranged on both sides of the positioning ring 7, second arc blocks 9 are arranged on both sides of the limiting ring 5, limiting rods 10 are arranged on the tops of the two second arc blocks 9, and clamping strips 11 are arranged on the bottoms of the two first arc blocks 8, a first sound-absorbing layer 14 is arranged inside the protective sleeve 4, and a second sound-absorbing layer 16 is arranged inside the pressure-resistant sleeve 3, one end of the two plug rods 12 is sequentially embedded in the inside of the two jacks 13, and the two are connected by snapping, so that the limiting rod 10 and the clamping strip 11 can be limited and fixed, thereby ensuring the firmness between the limiting ring 5 and the positioning ring 7, and improving the quality of the installation of the self-locking structure.

[0025] Embodiment 2:

[0026] Based on the first embodiment, Figure 1 and Figure 5 As shown, one end of the two clamping strips 11 is movably and interlacedly connected with one end of the two limit rods 10, one end of the two insertion rods 12 is respectively engaged with the inside of the two insertion holes 13, the positioning ring 7 is fixedly sleeved with one end of the positioning sleeve 6, and one side of the two first arc blocks 8 is respectively fixedly connected with the two sides of the positioning ring 7. The utility model provides a valve self-locking structure, which is provided with a positioning ring 7, a first arc block 8, a second arc block 9 and a wear-resistant layer 15. The bottom of the limit rod 10 is connected to the limit sleeve 5 by relying on the second arc block 9, and the top of the clamping strip 11 is connected to the positioning ring 7 by relying on the first arc block 8. As the positioning sleeve 6 moves up and down, the two clamping strips 11 also move up and down.

[0027] Working principle: The valve self-locking structure is a special design to ensure that the valve can automatically lock and maintain its position under certain conditions to prevent unauthorized operation and accidental opening and closing due to external factors. The valve self-locking structure includes a control valve. The control valve plays a vital role in industrial automation systems and is used to regulate and control the flow of fluids. The realization of the valve self-locking structure usually relies on mechanical, hydraulic and electronic devices, which can monitor the status of the valve and activate the locking mechanism when necessary. When the valve body 1 and the positioning sleeve 6 are installed, a large number of threaded holes are opened on the surface of both. The positioning sleeve 6 needs to be rotated continuously to make the upper and lower two The threaded holes must be flush with each other so that the bolts can be limited inside to realize the threaded rotation connection, and the valve body 1 and the valve stem 2 can be installed. Therefore, it takes time to accurately locate the threaded holes, which prolongs the installation time of the valve body 1 and the valve stem 2. In addition, the noise of the flowing medium transported inside the valve body 1 is relatively large, which not only affects the working environment, but also may cause harm to the health of the operators. The noise may also cover other important equipment sound signals, resulting in misjudgment of the equipment operation status. When the valve stem 2 and the valve body 1 are installed, the positioning sleeve 6 gradually fits against the valve body 1, and the two card strips 11 are gradually embedded in the two limit rods 10. At this time, the positioning sleeve 6 and the surface of the valve body 1 are opened. The threaded holes are fitted together, which speeds up the alignment of the threaded holes and improves the installation efficiency between the valve body 1 and the valve stem 2. One end of the two plug rods 12 is sequentially embedded in the two plug holes 13, and the two are connected by snapping, so that the limit rod 10 and the card strip 11 can be limited and fixed, ensuring the firmness between the limit ring 5 and the positioning ring 7, and improving the quality of the self-locking structure installation. The first sound-absorbing layer 14 and the second sound-absorbing layer 16 are both made of polyester fiber sound-absorbing panels with a loose and porous structure, so that sound waves can penetrate into the material and convert sound energy into sound energy through the friction of air molecules in the pores, viscous resistance and mechanical vibration of the fibers. It is heat energy, thereby achieving the effect of absorbing sound, reducing the noise of the valve body 1 when guiding the flowing medium, and solving the problem that noise may cover up the sound signals of other important equipment. The bottom of the limit rod 10 is connected to the limit ring 5 by relying on the second arc block 9, and the top of the clamping strip 11 is connected to the positioning ring 7 by relying on the first arc block 8. As the positioning sleeve 6 moves up and down, the two clamping strips 11 also move up and down, and the limit rod 10 remains stable. The wear-resistant layer 15 is made of wear-resistant alloy steel and has good wear resistance, which prolongs the service life of the pressure-resistant sleeve 3 and the protective sleeve 4, and the outer shells of both are made of aluminum alloy materials and have good pressure resistance.

[0028] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve self-locking structure, comprising a valve body (1) and a valve stem (2), wherein the valve stem (2) is arranged on the top of the valve body (1), characterized in that: One end of the valve stem (2) is sleeved with a positioning sleeve (6), one end of the valve body (1) is sleeved with a pressure-resistant sleeve (3), a protective sleeve (4) is arranged at the top end of the pressure-resistant sleeve (3), one end of the protective sleeve (4) is sleeved with a limiting ring (5), one end of the positioning sleeve (6) is sleeved with a positioning ring (7), first arc blocks (8) are arranged on both sides of the positioning ring (7), second arc blocks (9) are arranged on both sides of the limiting ring (5), limiting rods (10) are arranged at the top ends of the two second arc blocks (9), and clamping strips (11) are arranged at the bottom ends of the two first arc blocks (8), a first sound-absorbing layer (14) is arranged inside the protective sleeve (4), and a second sound-absorbing layer (16) is arranged inside the pressure-resistant sleeve (3).

2. A valve self-locking structure according to claim 1, characterized in that: One side of the two limit rods (10) is provided with an insertion rod (12), and one side of the two clamping strips (11) is provided with an insertion hole (13).

3. A valve self-locking structure according to claim 2, characterized in that: One end of the two clamping strips (11) is movably connected with one end of the two limit rods (10), and one end of the two insertion rods (12) is respectively connected with the inside of the two insertion holes (13).

4. A valve self-locking structure according to claim 3, characterized in that: The diameters of the two limiting rods (10) are both greater than the diameters of the two clamping strips (11).

5. The valve self-locking structure according to claim 1, characterized in that: The positioning ring (7) is fixedly sleeved with one end of the positioning sleeve (6), and one side of the two first arc-shaped blocks (8) is fixedly connected to the two sides of the positioning ring (7) respectively.

6. A valve self-locking structure according to claim 5, characterized in that: The two first arc-shaped blocks (8) are symmetrically distributed around the center position of the positioning circle (7).

7. A valve self-locking structure according to claim 1, characterized in that: A wear-resistant layer (15) is provided inside the protective sleeve (4).

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