Internal pushing structure of built-in valve body

Abstract

The utility model discloses a built-in valve body internal pushing structure, and relates to the technical field of valve built-in valve body pushing structures, the built-in valve body internal pushing structure comprises a valve body shell, a valve rod coaxially arranged with the valve body shell, and a valve core mounted on the valve rod; the valve rod is sleeved with a protection assembly, the protection assembly is formed by splicing multiple levels of rod bodies, and the end of the valve rod is connected with a motor. Wherein the protection assembly comprises a first sleeve rod, a second sleeve rod, a third sleeve rod and a clamping ring, the first sleeve rod is arranged on the valve rod in a sleeving mode, the first sleeve rod and the valve rod are fastened through a locking bolt, the second sleeve rod is arranged on the first sleeve rod in a sleeving mode, one end of the second sleeve rod is connected with the output end of the motor, and the other end of the second sleeve rod is connected to the clamping ring in a clamped mode. The third sleeve rod is installed on the side, away from the second sleeve rod, of the clamping ring, and a supporting base is installed at the end, away from the clamping ring, of the third sleeve rod. The device has the effects of ensuring stable operation of the internal valve body pushing structure and improving the equipment reliability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of an internal pushing structure of an embedded valve body, in particular to an internal pushing structure of an embedded valve body. BACKGROUND

[0002] With the continuous improvement of automation and precise control requirements, the performance and reliability of the internal pushing structure of the valve body are increasingly strict. An efficient and stable internal pushing structure of the valve body can ensure that the valve is precisely opened and closed, thereby realizing precise regulation of the flow, pressure and other parameters of the fluid medium.

[0003] In the past design of the internal pushing structure of the valve body, a single rod is usually used to drive the movement of the valve core. For example, an ordinary rod is directly connected with the valve core, and the movement of the rod is driven by a power device to realize the opening and closing action of the valve core. Some designs also set a simple protective sleeve outside the rod, but most of these protective sleeves are of a whole structure and do not have the characteristics of multi-stage splicing. In addition, some schemes may use a chain or a belt transmission mode to connect the power source and the rod, thereby controlling the valve core.

[0004] The existing designs have certain defects. The ordinary single rod structure is easily damaged by external environmental factors during long-term use, lacks effective protection, and the traditional protective sleeve cannot be flexibly adjusted in length according to actual needs, which is difficult to adapt to the requirements of working conditions. CONTENT OF THE INVENTION

[0005] In order to improve the problem that the ordinary single structure is damaged during long-term use, lacks effective protection and cannot be flexibly adjusted according to actual needs, the application provides an internal pushing structure of an embedded valve body.

[0006] The internal pushing structure of the embedded valve body provided by the application adopts the following technical scheme:

[0007] An internal pushing structure of an embedded valve body comprises a valve body shell, a valve rod coaxially arranged on the valve body shell and a valve core installed on the valve rod; a protective assembly is sleeved on the valve rod, the protective assembly has a multi-stage rod structure splicing structure, and an end of the valve rod is connected with a motor; wherein the protective assembly comprises a sleeve rod one, a sleeve rod two, a sleeve rod three and a clamping ring, the sleeve rod one is sleeved on the valve rod, the sleeve rod one and the valve rod are fastened through locking bolts, the sleeve rod two is sleeved on the sleeve rod one, one end of the sleeve rod two is connected with an output end of the motor, the other end of the sleeve rod two is clamped on the clamping ring, the sleeve rod three is installed on the side of the clamping ring away from the sleeve rod two, and a support seat is installed on the end of the sleeve rod three away from the clamping ring.

[0008] By adopting the technical scheme, the protection assembly is composed of multi-stage rod body structures and can protect the valve rod, and the plurality of sleeve rods can facilitate installation, disassembly and maintenance, thereby greatly improving convenience; the sleeve rod one is sleeved on the valve rod and fastened by lock bolts, which can prevent the sleeve rod one from sliding relative to the valve rod; the sleeve rod two is connected with the motor output end and clamped on the clamping ring, which can transmit the motor power; the sleeve rod three is connected with the sleeve rod two through the clamping ring and has an end portion on which a support seat is installed, which can enhance structural stability.

[0009] Optionally, an outer shell is mounted outside the motor, an opening end of the outer shell is provided with a sealing element, the sealing element comprises a cover body mounted on the outer shell, the cover body and the outer shell are fastened by screws, and the valve rod and the motor output end are connected by a pin shaft.

[0010] By adopting the technical scheme, the outer shell can protect the motor from damage caused by external factors; the cover body in the sealing element is fastened with the outer shell by screws, which can ensure the sealing property of the opening end of the outer shell and reduce the entry of dust and moisture into the inner part of the outer shell to affect normal operation of the motor; the valve rod and the motor output end are connected by a pin shaft, which can realize stable transmission of the two, so that the motor can effectively drive the valve rod to rotate and drive the valve core to work.

[0011] Optionally, upper support rods are symmetrically arranged between the valve body shell and the outer shell, the upper support rods are connected with the valve body shell by locking elements, and adjacent upper support rods are connected by fastening elements.

[0012] By adopting the technical scheme, the connection stability of the valve body shell and the outer shell can be enhanced, and the structural integrity and reliability can be ensured.

[0013] Optionally, the locking element comprises a lock bolt and a lock nut, and the lock bolt is threadedly matched with the valve body shell, the upper support rod and the lock nut in sequence.

[0014] By adopting the technical scheme, the lock bolt and the lock nut are matched to firmly connect the valve body shell and the upper support rod together, and the reliability of the connection between the upper support rod and the valve body shell is further enhanced.

[0015] Optionally, lower support rods are symmetrically arranged between the valve body shell and the sleeve rod three, and the diameters of the adjacent lower support rods are smaller than the diameters of the adjacent upper support rods.

[0016] By adopting the technical scheme, stable connection between the valve body shell and the sleeve rod three is realized, and different clamping diameters are arranged, which can adapt to the structural features and mechanical requirements of different parts of the device and optimize the stability and layout rationality of the entire built-in valve body internal driving structure.

[0017] Optionally, the fastening element comprises a round head screw and a nut, and the round head screw is threadedly matched with the symmetrically arranged upper support rod and the nut.

[0018] By adopting the technical scheme, the upper support rod arranged symmetrically is connected firmly, the stability of the internal pushing structure of the built-in valve body is ensured, and the threaded cooperation of the round head screw and the nut facilitates installation and disassembly, and facilitates maintenance and replacement of components.

[0019] Optionally, one end of the upper support rod is clamped and matched with the outer wall of the shell, and the other end of the upper support rod away from the shell is formed with a bending part attached to the valve body shell.

[0020] By adopting the technical scheme, the valve body shell and the shell are connected stably, and the stability and reliability of the entire pushing structure are enhanced.

[0021] Optionally, the valve core is provided with a sealing ring.

[0022] By adopting the technical scheme, the valve core provided with the sealing ring can enhance the sealing performance of the valve core, and ensure normal operation and sealing performance of the internal pushing structure of the built-in valve body.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The multi-stage rod body structure of the protection assembly can be flexibly adjusted in length according to actual needs, adapt to different working conditions, effectively protect the valve rod, and reduce damage to the valve rod caused by external environmental factors.

[0025] 2. The motor drives the valve rod to drive the valve core to move, avoiding the slipping phenomenon of the chain or belt transmission mode, making the power transmission more stable, and improving the control accuracy of the valve core.

[0026] 3. The sleeve rod one, sleeve rod two, sleeve rod three and clamping ring are installed on the valve rod and connected in a splicing manner, which greatly provides convenience for overall installation, disassembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a whole structure cross-sectional view of the present application.

[0029] Figure 2 is a cross-sectional view of the local structure of the present application.

[0030] Figure 3 is a sealing element structure schematic view of the present application.

[0031] Figure 4 is a sectional view of the protection assembly shown in the present application.

[0032] Figure 5 is a schematic diagram of the structure of the valve core, valve stem and motor shown in the present application.

[0033] Reference signs: 1, valve body shell; 2, valve stem; 3, protection assembly; 4, motor; 31, sleeve rod one; 32, sleeve rod two; 33, sleeve rod three; 34, clamping ring; 35, support seat; 5, outer shell; 6, sealing element; 61, cover; 62, screw; 63, pin shaft; 7, upper support rod; 8, locking element; 9, fastener; 81, locking bolt; 82, locking nut; 10, lower support rod; 91, round head screw; 92, nut; 11, sealing ring; 12, valve core. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application will be further described in detail.

[0035] The embodiment of the present application discloses an internal pushing structure in a built-in valve body.

[0036] Reference Figure 1 , including valve body shell 1, valve stem 2, valve core 12, protection assembly 3 and motor 4, wherein valve stem 2 and valve body shell 1 are coaxially arranged, valve core 12 is installed on valve stem 2, protection assembly 3 is sleeved on valve stem 2, and motor 4 is connected at the end of valve stem 2, so that motor 4 can drive valve stem 2 and valve core 12 to move, in combination with the structure of valve body shell 1, the speed and flow control of the valve are realized, and protection assembly 3 can protect valve stem 2.

[0037] See Figure 4As shown, the protection assembly 3 includes sleeve rod one 31, sleeve rod two 32, sleeve rod three 33 and clamping ring 34, the structure of sleeve rod one 31 is hollow tubular structure, the inner diameter is slightly larger than the outer diameter of valve stem 2, so as to be able to be set on valve stem 2, sleeve rod one 31 and valve stem 2 are fastened by locking bolt 81, which ensures the relative fixation between sleeve rod one 31 and valve stem 2, prevents sleeve rod one 31 from sliding on valve stem 2, sleeve rod two 32 is also hollow tubular structure, the inner diameter is larger than the outer diameter of sleeve rod one 31, sleeve rod two 32 is set on sleeve rod one 31, one end of sleeve rod two 32 is connected with the output end of motor 4, the connection mode can be welding or through coupling, so that the power of motor 4 can be transmitted to sleeve rod two 32. The other end of sleeve rod two 32 is clamped on clamping ring 34, the clamping mode can be through the cooperation of clamping groove and clamping block, which ensures the stable connection between sleeve rod two 32 and clamping ring 34, sleeve rod three 33 is installed on the side of clamping ring 34 away from sleeve rod two 32, support seat 35 is installed on the end of sleeve rod three 33 away from clamping ring 34, support seat 35 plays a sealing protection role. Motor 4 drives valve stem 2 to rotate, valve stem 2 drives sleeve rod one 31, sleeve rod two 32 and sleeve rod three 33 to link, in turn drives the movement of valve core 12, the protection assembly 3 composed of the multi-stage rod body structure can be easily adjusted in length, and is convenient to install, disassemble and maintain, and can adapt to different working conditions.

[0038] Referring to Figure 3 and Figure 5 As shown, the motor 4 is externally mounted with a shell 5, the open end of the shell 5 is provided with a sealing element 6, and the shell 5 has good strength and protection performance. The sealing element 6 includes a cover body 61 mounted on the shell 5, and the cover body 61 and the shell 5 are fastened by screws 62, which ensures the firm installation of the sealing element 6 and prevents dust and moisture from entering the inside of the shell 5. The valve stem 2 and the output end of the motor 4 are connected through a pin shaft 63, and the pin shaft 63 enables reliable power transmission between the valve stem 2 and the output end of the motor 4.

[0039] Referring to Figure 1 and Figure 2 As shown, the valve body shell 1 and the shell 5 are symmetrically provided with upper support rods 7, the upper support rods 7 and the valve body shell 1 are connected through locking elements 8, adjacent upper support rods 7 are connected through fastening elements 9, the upper support rods 7 are generally rod-shaped structures, one end of the upper support rods 7 is clamped and matched with the outer wall of the shell 5, so that the connection between the upper support rods 7 and the shell 5 is convenient and fast, and has a certain stability. The other end of the upper support rod 7 away from the shell 5 forms a bent part and is attached to the valve body shell 1, and the bent part increases the contact area between the upper support rod 7 and the valve body shell 1, thereby improving the stability of the connection.

[0040] Referring to Figure 2As shown, the locking member 8 includes a locking bolt 81 and a locking nut 82, the locking bolt 81 is sequentially threaded through the valve body shell 1, the upper support rod 7 and the locking nut 82, which ensures the connection between the upper support rod 7 and the valve body shell 1 is firm, and the fastener 9 includes a round head screw 91 and a nut 92, the round head screw 91 is threaded through the symmetrically arranged upper support rod 7 and the nut 92, so that the connection between adjacent upper support rods 7 is stable, and the arrangement of the upper support rod 7 plays a supporting and fixing role, thereby improving the stability of the entire pushing structure.

[0041] As shown in Figure 1 and Figure 4 As shown, the valve body shell 1 and the sleeve rod three 33 are symmetrically provided with lower support rods 10, and the caliber clamped by adjacent lower support rods 10 is smaller than the caliber clamped by adjacent upper support rods 7, and the lower support rod 10 is also a rod-shaped structure. The arrangement of the lower support rod 10 further enhances the stability of the entire pushing structure, and the different clamping calibers design makes the pushing structure have different support strengths at different positions.

[0042] As shown in Figure 1 As shown, the valve core 12 is provided with a sealing ring 11, which is generally made of rubber and has good elasticity and sealing performance. It can also be made of silica gel to improve the high temperature resistance and chemical corrosion resistance. The arrangement of the sealing ring 11 can ensure the sealing performance between the valve core 12 and the valve body shell 1, and prevent fluid medium leakage.

[0043] The implementation principle of the embodiment of the built-in valve body internal pushing structure is: through the multi-stage spliced protection assembly 3, the valve rod 2 can be effectively protected, the influence of external environmental factors on the valve rod 2 is reduced, and the length can be flexibly adjusted according to the actual working condition. The splicing type can facilitate the installation, disassembly and maintenance of multiple sleeve rods. At the same time, the arrangement of the upper support rod 7 and the lower support rod 10 improves the stability of the entire structure, the sealing member 6 and the sealing ring 11 on the valve core 12 ensure the sealing performance of the structure, compared with the prior art, the reliability and adaptability of the pushing structure are improved, the maintenance cost is reduced, and the speed and flow accurate control and stability improvement of the Venturi valve are better met.

[0044] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the terms "first", "second" or "third" and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms "one", "another", "an" or "some" as well as similar referents in the context of describing the specification and claims are to be construed to be open-ended, i.e., to cover both singular and plural referents unless otherwise indicated. The terms "including", "containing" or "comprising" and the like are not intended to exclude other integers or steps, but to "include" or "comprise" other integers or steps unless otherwise indicated. The terms "connected", "coupled" or "pathway" and the like are not limited to direct connections, couplings or pathways, but can also include indirect connections, couplings or pathways unless otherwise indicated.

[0045] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An internal valve body internal push structure, characterized by: The utility model provides a valve body shell (1), and the valve stem (2) and the valve core (12) installed on the valve stem (2) are coaxially arranged with the valve body shell (1), the valve stem (2) is provided with the protection assembly (3) on the sleeve, the protection assembly (3) has multistage rod body structure splicing and is formed, and the end of valve stem (2) is connected with motor (4). Wherein, the protection assembly (3) includes sleeve rod one (31), sleeve rod two (32), sleeve rod three (33) and clamping ring (34), the sleeve rod one (31) is sleeved on the valve stem (2), the sleeve rod one (31) and the valve stem (2) are fastened through locking bolt (81), the sleeve rod two (32) is sleeved on the sleeve rod one (31), one end of the sleeve rod two (32) is connected with the output end of motor (4), the other end of the sleeve rod two (32) is clamped on the clamping ring (34), the sleeve rod three (33) is installed on the side of the clamping ring (34) away from the sleeve rod two (32), and the end of the sleeve rod three (33) away from the clamping ring (34) is provided with support seat (35).

2. An internal push structure of a built-in valve body according to claim 1, characterized in that: The motor (4) is externally provided with a shell (5), the opening end of the shell (5) is provided with a sealing element (6), the sealing element (6) comprises a cover body (61) mounted on the shell (5), the cover body (61) and the shell (5) are fastened by screws (62), and the valve stem (2) and the output end of the motor (4) are connected by a pin shaft (63).

3. An internal push structure of an inner valve body according to claim 2, characterized in that: Symmetrical upper support rods (7) are arranged between the valve body shell (1) and the shell (5), the upper support rods (7) and the valve body shell (1) are connected by locking elements (8), and adjacent upper support rods (7) are connected by fastening elements (9).

4. An internal push structure of an inner valve body according to claim 3, characterized in that: The locking elements (8) comprise locking bolts (81) and locking nuts (82), and the locking bolts (81) are threadedly connected in sequence through the valve body shell (1), the upper support rods (7) and the locking nuts (82).

5. An internal push structure of an inner valve body according to claim 1, characterized in that: Symmetrical lower support rods (10) are arranged between the valve body shell (1) and the sleeve rod three (33), and the diameters of adjacent lower support rods (10) are smaller than the diameters of adjacent upper support rods (7).

6. An internal push structure of an inner valve body according to claim 3, wherein: The fastening elements (9) comprise round head screws (91) and nuts (92), and the round head screws (91) are threadedly connected through the symmetrically arranged upper support rods (7) and the nuts (92).

7. An internal valve body push from within structure according to claim 3, wherein: One end of the upper support rod (7) is clamped and matched with the outer wall of the shell (5), and the other end of the upper support rod (7) away from the shell (5) is formed with a bent portion and is attached to the valve body shell (1).

8. An internal push structure of a built-in valve body according to claim 1, characterized in that: The valve core (12) is provided with a sealing ring (11).

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