Leakage-proof valve with good sealing performance

Abstract

The utility model relates to the technical field of leakproof valves with good sealing performance, and discloses a leakproof valve with good sealing performance, which comprises a machine base and a cylindrical barrel mounted at the top of the machine base, and is characterized in that the machine base comprises a machine body and seat legs, through holes are formed in two sides and the top of the machine body, and the seat legs are fixedly mounted at four corners of the bottom of the machine body. Connecting devices are installed on the two sides of the machine base, and a valve lifting device is installed on the top of the cylindrical barrel. Rubber pads are installed on a first limiting block and a second limiting block, a gap between a lead screw and the top of a cylindrical barrel can be blocked after a valve lifting device moves in place, a good sealing effect can be achieved, fixing blocks are symmetrically installed on the two sides of the bottom of the cylindrical barrel, the cylindrical barrel is fixed to the top of a machine base through nuts, and therefore the sealing effect is good. Therefore, the whole device is good in sealing performance, parts which are corroded or accidentally damaged can be replaced in time, the service life of the device can be prolonged, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of leak - proof valves with good sealing performance, and more specifically to a leak - proof valve with good sealing performance. Background Technique

[0002] A leak - proof valve with good sealing performance is a device used in a fluid system to control the direction, pressure, and flow rate of a fluid. It is a device that enables the medium in pipes and equipment, such as liquids, gases, powders, etc., to flow or stop and can control its flow rate.

[0003] After traditional valve devices have been used for a long time, the sealing effect may decrease, resulting in leakage of the transported medium, which may cause economic losses and environmental pollution. In severe cases, it may even affect the safety of personnel. On the other hand, when valves are used for a long time, they will experience wear and corrosion, but at this time, they cannot be replaced and can only be replaced with new ones, which will result in relatively high costs in the long run.

[0004] To solve these problems, the new leak - proof valve with good sealing performance connects the cylindrical barrel and the body with nuts, which facilitates future replacement. At the same time, rubber gaskets are installed on the limit blocks to ensure that the valve blocks the gap after reaching the position, ensuring good sealing performance. Content of the Utility Model

[0005] In order to overcome the above - mentioned defects of the prior art, the utility model provides a leak - proof valve with good sealing performance to solve the problems existing in the above - mentioned background technique.

[0006] The utility model provides the following technical solutions:

[0007] A leak - proof valve with good sealing performance includes a base and a cylindrical barrel installed on the top of the base. The base includes a body and base feet. Through holes are opened on both sides and the top of the body. The base feet are fixedly installed at the four corners of the bottom of the body. Connecting devices are installed on both sides of the base, and a valve lifting device is installed on the top of the cylindrical barrel;

[0008] The cylindrical barrel includes fixing blocks and nuts. The fixing blocks are fixedly installed on both sides of the cylindrical barrel in a left - right symmetric distribution. The nuts thread through the fixing blocks and are thread - connected to the top of the body.

[0009] Preferably, the valve lifting device includes a swivel ring, a lead screw, a first limit block, a second limit block, and a valve plug;

[0010] The middle part of the swivel ring is fixedly connected to the lead screw. The lead screw threadedly penetrates through the top of the first limit block, the cylindrical barrel, and the second limit block. The first limit block is fixedly installed on the lead screw. The first limit block is located above the cylindrical barrel. The second limit block is fixedly installed on the lead screw. The second limit block is located inside the cylindrical barrel. The valve plug is movably sleeved on the bottom of the lead screw.

[0011] Preferably, the connecting device includes a connecting pipe, a connecting ring, and threaded connection holes. The connecting pipes are fixedly installed on both sides of the machine body. The connecting ring is fixedly installed at one end of the connecting pipe away from the machine body. The threaded connection holes are circumferentially distributed on the connecting ring.

[0012] Preferably, rubber pads are installed on the bottom of the first limit block and the top of the second limit block. Sliding grooves corresponding to the valve plug are provided on the inner cavity walls of the machine base and the cylindrical barrel.

[0013] Compared with the prior art, the present utility model has the following beneficial technical effects:

[0014] By installing rubber pads on the first limit block and the second limit block, the valve lifting device can block the gap between the lead screw and the top of the cylindrical barrel after moving into place, which can play a good sealing role. Fixed blocks are symmetrically installed on both sides of the bottom of the cylindrical barrel, and the cylindrical barrel is fixed on the top of the machine base through nuts. In this way, the whole device not only has good sealing performance, but also can timely replace the corroded or accidentally damaged parts, which can extend the service life of the device and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 is an exploded schematic diagram of the overall structure of the present utility model.

[0017] Figure 3 is a partial sectional schematic diagram of the overall structure of the present utility model.

[0018] Reference numerals are: 1, machine base; 101, machine body; 102, base feet; 2, cylindrical barrel; 201, fixed block; 202, nut; 3, valve lifting device; 301, swivel ring; 302, lead screw; 303, first limit block; 304, second limit block; 305, valve plug; 4, connecting device; 401, connecting pipe; 402, connecting ring; 403, threaded connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the drawings in the present utility model.

[0020] Reference Figure 1 and Figure 3 Figure 1 and Figure 3 , a leak-proof valve with good sealing performance, comprising a base 1 and a cylindrical barrel 2 installed on the top of the base 1. The base 1 includes a body 101 and base feet 102. Through holes are provided on both sides and the top of the body 101. The base feet 102 are fixedly installed at the four corners of the bottom of the body 101. Connecting devices 4 are installed on both sides of the base 1, and a valve lifting device 3 is installed on the top of the cylindrical barrel 2;

[0021] The cylindrical barrel 2 includes fixing blocks 201 and nuts 202. The fixing blocks 201 are fixedly installed on both sides of the cylindrical barrel 2 in a left-right symmetric distribution. The nuts 202 are threadedly penetrated through the fixing blocks 201 and then threadedly connected to the top of the body 101.

[0022] The valve lifting device 3 includes a swivel ring 301, a lead screw 302, a first limit block 303, a second limit block 304, and a valve plug 305;

[0023] The middle part of the swivel ring 301 is fixedly connected to the lead screw 302. The lead screw 302 is threadedly penetrated through the first limit block 303, the top of the cylindrical barrel 2, and the second limit block 304. The first limit block 303 is fixedly installed on the lead screw 302, and the first limit block 303 is located above the cylindrical barrel 2; the second limit block 304 is fixedly installed on the lead screw 302, and the second limit block 304 is located inside the cylindrical barrel 2. The valve plug 305 is movably sleeved on the bottom of the lead screw 302.

[0024] The connecting device 4 includes a connecting pipe 401, a connecting ring 402, and threaded connection holes 403. The connecting pipe 401 is fixedly installed on both sides of the body 101. The connecting ring 402 is fixedly installed at one end of the connecting pipe 401 away from the body 101. The threaded connection holes 403 are circumferentially distributed on the connecting ring 402.

[0025] Rubber pads are installed at the bottom of the first limit block 303 and the top of the second limit block 304. Sliding grooves corresponding to the valve plug 305 are provided on the inner cavity walls of the base 1 and the cylindrical barrel 2.

[0026] The working principle of the present utility model:

[0027] After the device is placed, the pipe with the connecting ring 402 is connected to the connecting pipe 401 of the device, and the screw and nut are installed through the threaded connection hole 403 to lock the two connecting rings 402. At this time, the rotating ring 301 is rotated upward, and the valve plug 305 is driven to move upward by the screw 302. After it is in place, the second limit block 304 will limit the valve lifting device 3 from continuing to move upward; at this time, the second limit block 304 just abuts against the top of the inner cavity of the cylindrical tube 2, and a rubber gasket is installed on the top of the second limit block 304, which seals the gap between the screw 302 and the top of the cylindrical tube 2, so that the sealing of the whole device is better, and transmission is carried out through the connecting pipe 401;

[0028] When it is necessary to stop the transmission, similarly, rotate the rotating ring 301 downward. When the first limit block 303 contacts the top of the cylindrical tube 2, the valve plug 305 just blocks the transmission of the medium. When we need to replace the component, we can replace the part by screwing the nut 202 on the fixing block 201 upward.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leak-proof valve with good sealing performance, comprising a base (1) and a cylindrical barrel (2) installed on the top of the base (1), characterized in that: The base (1) includes a body (101) and feet (102). Through holes are provided on both sides and the top of the body (101). The feet (102) are fixedly installed at the four corners of the bottom of the body (101). Connecting devices (4) are installed on both sides of the base (1). A valve lifting device (3) is installed at the top of the cylindrical barrel (2). The cylindrical barrel (2) includes fixing blocks (201) and nuts (202). The fixing blocks (201) are fixedly installed on both sides of the cylindrical barrel (2) in a left-right symmetric distribution. The nuts (202) thread through the fixing blocks (201) and are threadedly connected to the top of the body (101).

2. The leak-proof valve with good sealing performance according to claim 1, wherein: The valve lifting device (3) includes a swivel ring (301), a lead screw (302), a first limit block (303), a second limit block (304), and a valve plug (305). The middle of the swivel ring (301) is fixedly connected to the lead screw (302). The lead screw (302) threadedly penetrates through the first limit block (303), the top of the cylindrical barrel (2), and the second limit block (304). The first limit block (303) is fixedly installed on the lead screw (302), and the first limit block (303) is located above the cylindrical barrel (2). The second limit block (304) is fixedly installed on the lead screw (302), and the second limit block (304) is located inside the cylindrical barrel (2). The valve plug (305) is movably sleeved on the bottom of the lead screw (302).

3. The leak-proof valve with good sealing performance according to claim 1 is characterized in that: The connecting device (4) includes a connecting pipe (401), a connecting ring (402), and a threaded connection hole (403). The connecting pipe (401) is fixedly installed on both sides of the body (101). The connecting ring (402) is fixedly installed at the end of the connecting pipe (401) away from the body (101). The threaded connection holes (403) are circumferentially distributed on the connecting ring (402).

4. The leak-proof valve with good sealing performance according to claim 2, characterized in that: Rubber pads are installed on the bottom of the first limit block (303) and the top of the second limit block (304). Chute grooves corresponding to the valve plug (305) are provided on the inner cavity walls of the base (1) and the cylindrical barrel (2).

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