Double-valve-seat hard sealing ball valve

Abstract

The utility model provides a hard sealing ball valve with double valve seats. The double-valve-seat hard sealing ball valve comprises a double-valve-seat hard sealing ball valve main body and a double-valve-seat hard sealing ball valve, the two first connecting pipes are both communicated with the double-valve-seat hard sealing ball valve main body; the two second connecting pipes are arranged at the ends, away from each other, of the two first connecting pipes correspondingly, and the two first connecting pipes and the two second connecting pipes are connected and fixed through the two quick dismounting and mounting mechanisms; the quick dismounting and mounting mechanism comprises a sealing assembly, the sealing assembly comprises a storage sleeve and a sealing ring, the storage sleeve is fixedly installed on the first connecting pipe and matched with the first connecting pipe, and the sealing ring is installed on the second connecting pipe. The double-valve-seat hard sealing ball valve has the advantages of being simple in structure and capable of improving stability and convenience between the double-valve-seat hard sealing ball valve and a pipeline due to the fact that the quick disassembling and assembling mechanism is arranged.

Description

Technical Field

[0001] The utility model belongs to the technical field of regulating valves, and in particular relates to a double-valve-seat hard-sealed ball valve. Background Art

[0002] As one of the key valves in special positions, the hard-sealed ball valves on the market generally have poor sealing performance and a certain amount of leakage. In particular, after long-term use, the sealing surface is prone to wear and leakage, which affects the valve's switching life and closing tightness. These problems seriously hinder the normal use of the valve and can no longer meet the growing demand for automatic control.

[0003] After searching, the patent document with the authorization publication number CN204922071U in the related technology discloses a double valve seat hard seal ball valve, which includes a valve stem (1), a valve body (2) and a ball core (3), and cylindrical valve seats (4) whose outer walls are tightly fitted with the inner wall of the medium channel (21) are provided at both ends of the medium channel (21), and the end faces of the two valve seats (4) close to the ball core (3) are tightly fitted with the two end faces of the ball core (3) along the axis direction of the through hole, respectively, and a pressure ring (5) is provided at the end of the valve seat (4) away from the ball core (3), and the pressure ring (5) is fixed at the end of the valve body (1) and a spring (6) is provided between the pressure ring (5) and the valve seat (4). The utility model provides valve seats at both ends of the ball core, so that the ball core and the valve seat sealing surface are matched, and the valve seat has a reasonable adjustable sealing force, so as to fully realize the reliable hard seal and long-term operation reliability between the ball core and the valve seat.

[0004] Regarding the above-mentioned related technologies, the utility model applicant believes that there are the following defects:

[0005] 1. The above valve is achieved by arranging valve seats at both ends of the ball core so that the ball core and the valve seat sealing surface are matched, and the valve seat has a reasonable adjustable sealing force, so as to fully realize the reliable hard seal and long-term operation reliability between the ball core and the valve seat. However, the traditional double-seat hard-sealed ball valve is generally connected to the pipeline by flange connection, welding connection and threaded connection. However, there is a problem that when the double-seat hard-sealed ball valve is connected to the pipeline, the steps are cumbersome and the installation is inconvenient.

[0006] Therefore, it is necessary to provide a new double-seat hard-sealed ball valve to solve the above technical problems. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a double-valve-seat hard-sealed ball valve which has a simple structure by arranging a quick disassembly and assembly mechanism and can improve the stability and convenience between the double-valve-seat hard-sealed ball valve and a pipeline.

[0008] In order to solve the above technical problems, the double valve seat hard seal ball valve provided by the utility model comprises: a double valve seat hard seal ball valve body;

[0009] Two connecting pipes 1, both of which are connected to the main body of the double-valve seat hard-sealed ball valve;

[0010] Two connecting pipes 2, the two connecting pipes 2 are respectively arranged on ends of the two connecting pipes 1 that are away from each other, and the two connecting pipes 1 and the two connecting pipes 2 are connected and fixed by two quick disassembly mechanisms;

[0011] The quick disassembly and assembly mechanism includes a sealing component, which includes a storage sleeve and a sealing ring. The storage sleeve is fixedly installed on the connecting pipe one, and the storage sleeve is adapted to the connecting pipe one. The sealing ring is installed on the connecting pipe two, and the sealing ring is adapted to the connecting pipe two, the storage sleeve and the connecting pipe one.

[0012] As a further solution of the utility model, the quick disassembly and assembly mechanism also includes two reset assemblies, and the two reset assemblies are respectively arranged on the two storage sleeves.

[0013] As a further solution of the utility model, the reset assembly includes multiple installation rods, multiple limit sliders and multiple telescopic springs. The multiple installation rods are fixedly installed on the outer wall of the storage sleeve, and the multiple installation rods are distributed in a ring array.

[0014] As a further solution of the utility model, multiple limit sliders are respectively slidably installed on multiple mounting rods, and multiple telescopic springs are respectively slidably sleeved on the multiple mounting rods. One end of the telescopic spring is fixedly connected to the outer wall of the storage sleeve, and the other end of the telescopic spring is fixedly connected to the limit slider.

[0015] As a further solution of the utility model, the quick disassembly and assembly mechanism further includes a limit cover, and the limit cover is fixedly mounted on the second connecting pipe.

[0016] As a further solution of the utility model, a plurality of through holes are formed on the limit cover, and the plurality of through holes are respectively matched with the plurality of limit sliding blocks.

[0017] Compared with the related art, the double valve seat hard seal ball valve provided by the utility model has the following beneficial effects:

[0018] 1. The utility model has a simple structure by providing a quick disassembly and assembly mechanism, which can improve the stability and convenience between the double-seat hard-sealed ball valve and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 The structure of the utility model is shown in FIG. Figure 3 .

[0023] In the figure: 1. Double valve seat hard seal ball valve body; 2. Connecting pipe 1; 3. Connecting pipe 2; 4. Storage sleeve; 5. Sealing ring; 6. Mounting rod; 7. Limit slider; 8. Telescopic spring; 10. Limit cover. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 The structure of the utility model is shown in FIG. Figure 1 ; Figure 2 The structure of the utility model is shown in FIG. Figure 2 ; Figure 3 The structure of the utility model is shown in FIG. Figure 3 The double-seat hard-sealed ball valve comprises: a double-seat hard-sealed ball valve body 1;

[0025] Two connecting pipes 1 2, both of which are connected to the double-valve seat hard-sealed ball valve body 1;

[0026] Two connecting pipes 2 3, the two connecting pipes 2 3 are respectively arranged on ends of the two connecting pipes 1 2 that are away from each other, and the two connecting pipes 1 2 and the two connecting pipes 2 3 are connected and fixed by two quick disassembly mechanisms;

[0027] The quick disassembly and assembly mechanism includes a sealing component, which includes a storage sleeve 4 and a sealing ring 5. The storage sleeve 4 is fixedly installed on the connecting pipe 2, and the storage sleeve 4 is adapted to the connecting pipe 2. The sealing ring 5 is installed on the connecting pipe 2 3, and the sealing ring 5 is adapted to the connecting pipe 2 3, the storage sleeve 4 and the connecting pipe 2.

[0028] The quick disassembly and assembly mechanism further includes two reset components, which are respectively arranged on the two storage sleeves 4 .

[0029] The reset assembly includes a plurality of mounting rods 6, a plurality of limit sliders 7 and a plurality of telescopic springs 8. The plurality of mounting rods 6 are fixedly mounted on the outer wall of the storage sleeve 4, and the plurality of mounting rods 6 are distributed in a ring array.

[0030] Multiple limit sliders 7 are slidably installed on multiple mounting rods 6 respectively, and multiple telescopic springs 8 are slidably sleeved on multiple mounting rods 6 respectively. One end of the telescopic spring 8 is fixedly connected to the outer wall of the storage sleeve 4, and the other end of the telescopic spring 8 is fixedly connected to the limit slider 7.

[0031] The quick disassembly and assembly mechanism further comprises a limit cover 10 , and the limit cover 10 is fixedly mounted on the connecting pipe 2 3 .

[0032] The limiting cover 10 is provided with a plurality of through holes, and the plurality of through holes are respectively matched with the plurality of limiting sliders 7 .

[0033] The working principle of the double valve seat hard seal ball valve provided by the utility model is as follows:

[0034] Step 1: When connecting the pipelines, hold the connecting pipe 2 3 by hand to drive the sealing ring 5 to be inserted into the receiving sleeve 4, and the sealing ring 5 improves the sealing between the connecting pipe 2 3 and the receiving sleeve 4, thereby avoiding water leakage;

[0035] Step 2: When the pipeline is connected, the limit slider 7 is pressed down, so that the limit slider 7 slides in the limit cover 10. At the same time, the limit slider 7 compresses the telescopic spring 8 when it is pressed down. When the limit slider 7 moves to the bottom of the through hole, the limit slider 7 can pass through the through hole under the elastic action of the telescopic spring 8, so that the limit cover 10 / connecting pipe 2 3 and the sealing ring 5 can be limited;

[0036] The third step: when disassembling the pipeline, press the limit slider 7 to make the limit slider 7 enter the limit cover 10 through the through hole, and then pull the connecting pipe 2 3 to drive the limit cover 10 and the sealing ring 5 to move away from the double valve seat hard sealing ball valve body 1 through the connecting pipe 2 3, so that the connecting pipe 2 3 and the sealing ring 5 are separated from the storage sleeve 4, thereby completing the disassembly work.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A double-seat hard-sealed ball valve, characterized in that: include: Double seat hard seal ball valve body; Two connecting pipes 1, both of which are connected to the main body of the double-valve seat hard-sealed ball valve; Two connecting pipes 2, the two connecting pipes 2 are respectively arranged on ends of the two connecting pipes 1 that are away from each other, and the two connecting pipes 1 and the two connecting pipes 2 are connected and fixed by two quick disassembly mechanisms; The quick disassembly and assembly mechanism includes a sealing component, which includes a storage sleeve and a sealing ring. The storage sleeve is fixedly installed on the connecting pipe one, and the storage sleeve is adapted to the connecting pipe one. The sealing ring is installed on the connecting pipe two, and the sealing ring is adapted to the connecting pipe two, the storage sleeve and the connecting pipe one.

2. The double-seat hard-sealed ball valve according to claim 1, characterized in that: The quick disassembly and assembly mechanism also includes two reset assemblies, which are respectively arranged on the two storage sleeves.

3. The double-seat hard-sealed ball valve according to claim 2, characterized in that: The reset assembly includes a plurality of mounting rods, a plurality of limit sliders and a plurality of telescopic springs. The plurality of mounting rods are fixedly mounted on the outer wall of the storage sleeve, and the plurality of mounting rods are distributed in a ring array.

4. The double-seat hard-sealed ball valve according to claim 3, characterized in that: The plurality of limit sliders are slidably mounted on the plurality of mounting rods respectively, the plurality of telescopic springs are slidably sleeved on the plurality of mounting rods respectively, one end of the telescopic spring is fixedly connected to the outer wall of the storage sleeve, and the other end of the telescopic spring is fixedly connected to the limit slider.

5. The double-seat hard-sealed ball valve according to claim 1, characterized in that: The quick disassembly and assembly mechanism also includes a limit cover, and the limit cover is fixedly installed on the second connecting pipe.

6. The double-seat hard-sealed ball valve according to claim 5, characterized in that: The limit cover is provided with a plurality of through holes, and the plurality of through holes are respectively matched with the plurality of limit sliding blocks.

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