A quick-connect stop valve with a two-way cut-off function

Abstract

The present invention belongs to the technical field of globe valves, and particularly relates to a quick-insert globe valve with a two-way shut-off function, which comprises a left valve body assembly and a right valve body assembly. The left valve body assembly includes a left valve body, a left valve core, a left cylinder sleeve, a first sealing ring and a first elastic element; the right valve body assembly includes a right valve body, a right valve core, a right cylinder sleeve, a second sealing ring and a second elastic element. When neither the first elastic element nor the second elastic element is stressed, the left valve body assembly and the right valve body assembly are sealed and not in fluid communication, and the right valve body assembly can be inserted into the left valve body assembly to connect a first flow passage chamber and a second flow passage chamber. Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Two-way shut-off, flowing through when inserted and stopping flowing when pulled out, with high efficiency; (2) Can be installed in both forward and reverse directions without specifically distinguishing the direction; (3) Compact structure, good flow effect and low flow resistance; (4) Convenient for insertion and extraction. When pulled out, only need to press the anti-retreat clip to separate the left valve body assembly and the right valve body assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of globe valves, and particularly relates to a quick-insert globe valve with a two-way shut-off function. Background Art

[0002] In the development of today's automotive industry and battery energy storage systems, more and more systems need to achieve pressurized installation or pressurized disassembly when replacing batteries. Currently, few systems have pipelines with an emptying function. The solutions of the prior art are roughly divided into three types: (1) Quick-insert connectors are convenient to install, but each time the system is shut down for maintenance and disassembly, the medium in the system and the liquid medium in the connecting pipe will flow out, causing a large amount of coolant to flow out, wasting resources, polluting the environment, and the flowing-out medium will corrode other components; (2) Using a one-way globe valve, the disadvantage is that the installation has one-wayness and only one side can be shut off, unable to meet the requirement of shutting off both sides. The system end can achieve shut-off, but the liquid in the pipeline will still flow out, also causing resource waste, polluting the environment, and the flowing-out medium will corrode other components; (3) Using threaded connections, the disadvantages are that most are made of metal materials, the cost is high, and the installation and disassembly are inconvenient and the efficiency is low.

[0003] For the plug-in type two-way globe valve described in Chinese invention patent CN108692036A, the invention is reasonably designed, and by setting an oil control port, manual and hydraulic control methods are realized to control the opening and closing. However, the invention has a directionality during installation and requires special attention to the installation direction, which brings inconvenience to the installation, and the invention also needs to be opened and closed after installation, increasing the operation steps.

[0004] Therefore, in view of the above problems, it is necessary to propose a new technical solution to meet the actual needs. Summary of the Invention

[0005] The present invention provides a quick-insert globe valve with a two-way shut-off function for the above problems.

[0006] To achieve the above object, the technical solution of the present invention is: A quick-insert globe valve with a two-way shut-off function includes a left valve body assembly and a right valve body assembly;

[0007] The left valve body assembly includes a left valve body, a left valve core, a left cylinder sleeve, a first sealing ring, and a first elastic element. The first elastic element is installed at the left end of the left valve core. The left valve core is slidably connected in a first flow cavity opened inside the left valve body. A left cylinder sleeve is installed at the right end inside the first flow cavity. The left cylinder sleeve can be sealed with the left valve core through the first sealing ring;

[0008] The right valve body assembly includes a right valve body, a right valve core, a right cylinder sleeve, a sealing ring three, and an elastic element two. The elastic element two is installed at the right end of the right valve core. The right valve core is slidably connected in a flow passage two formed inside the right valve body. A right cylinder sleeve is installed in the flow passage two, and the right cylinder sleeve can be sealed with the right valve core through the sealing ring three.

[0009] When neither the elastic element one nor the elastic element two is stressed, the left valve body assembly and the right valve body assembly are sealed and non-flow-through.

[0010] The right valve body assembly can be inserted into the left valve body assembly to connect the flow passage one and the flow passage two.

[0011] Preferably, a weight-reducing hole is provided at the left end of the left valve core, and a valve core plug is installed in the weight-reducing hole. The left end of the valve core plug is an arc surface.

[0012] Preferably, a left valve core guide post is provided on the left valve core, and a right valve core guide post is provided on the right valve core.

[0013] Preferably, a left valve core ejector rod is provided at the right end of the left valve core, and a right valve core guide hole is provided at the left end of the right valve core. The left valve core ejector rod can be inserted into the right valve core guide hole.

[0014] Preferably, a retaining clip is installed on the outer wall of the right part of the left valve body, and a retaining groove is provided on the outer wall of the left part of the right valve body. The retaining clip can be clamped in the retaining groove.

[0015] Preferably, the left cylinder sleeve is in interference fit with the inner wall of the flow passage one through left cylinder sleeve reverse teeth provided on the inner circle, and the right cylinder sleeve is in interference fit with the inner wall of the flow passage two through right cylinder sleeve reverse teeth provided on the inner circle.

[0016] Preferably, reverse teeth are provided on the outer walls of the connection ends of the left valve body and the right valve body with the pipelines.

[0017] Preferably, both the elastic element one and the elastic element two are springs.

[0018] An installation method of a quick-connect stop valve with a two-way stop function includes the following steps.

[0019] Step 1: Insert the end with reverse teeth on the outer wall of the left valve body assembly into the input pipeline (or output pipeline) to be connected.

[0020] Step 2: Insert the end with reverse teeth on the outer wall of the right valve body assembly into the output pipeline (or input pipeline) to be connected.

[0021] Step 3: Insert the right valve body assembly in Step 2 into the left valve body assembly in Step 1 until the anti-reverse clip of the left valve body is engaged with the anti-reverse groove formed on the outer wall of the right valve body.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0023] (1) The globe valve can be installed in both forward and reverse directions, and there is no need to specifically distinguish the direction during installation;

[0024] (2) Flow is allowed when plugged in and stopped when unplugged, avoiding the outflow of liquid in the pipeline when the valve body is plugged and unplugged;

[0025] (3) Bidirectional cut-off, both ends of the globe valve can be cut off;

[0026] (4) Plugging and unplugging are convenient. When unplugging, just press the anti-reverse clip to separate the left valve body assembly and the right valve body assembly. Description of the Drawings

[0027] In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below:

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention in the flow-through state;

[0029] Figure 2 It is a schematic diagram of the structure of the left valve body sub-assembly of the present invention in the cut-off state;

[0030] Figure 3 It is a schematic diagram of the structure of the right valve body sub-assembly of the present invention in the cut-off state;

[0031] Figure 4 It is a schematic diagram of the structure of the left valve core of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the right valve core of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the left cylinder liner of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the right cylinder liner of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the anti-reverse clip and the fixed guide shell of the present invention;

[0036] Figure 9 It is a schematic diagram of the engagement of the anti-reverse clip with the right valve body of the present invention;

[0037] Figure 10 It is a schematic diagram of the overall structure of the present invention.

[0038] Description of the Reference Numerals:

[0039] 1 - Left valve body, 2 - First elastic element, 3 - Spool plug, 4 - First sealing ring;

[0040] 5 - Left cylinder sleeve, 51 - Inverted teeth on the left cylinder sleeve;

[0041] 6 - Left spool, 61 - Weight - reducing hole, 62 - Support column of the left spool, 63 - Guide column of the left spool, 64 - Push rod of the left spool;

[0042] 7 - Second sealing ring, 8 - Fixed shell of the anti - retreat clip, 81 - Guide groove;

[0043] 9 - Anti - retreat clip, 91 - Guide column of the anti - retreat clip;

[0044] 10 - Right cylinder sleeve, 101 - Inverted teeth on the right cylinder sleeve;

[0045] 11 - Third sealing ring;

[0046] 12 - Right spool, 121 - Guide hole of the right spool, 122 - Sealing ring groove of the right spool, 123 - Guide column of the right spool;

[0047] 13 - Right valve body, 14 - Second elastic element, 15 - Anti - retreat groove. Detailed implementation mode

[0048] In order to more clearly understand the above - mentioned objects, features, and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments.

[0049] Embodiment 1

[0050] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 10 , a quick - connect stop valve with a two - way cut - off function includes a left valve body assembly and a right valve body assembly.

[0051] The left valve body assembly includes a left valve body 1, a left spool 6, a left cylinder sleeve 5, a first sealing ring 4, and a first elastic element 2. The first elastic element 2 is installed at the left end of the left spool 6. The left spool 6 is slidably connected in a first flow cavity opened inside the left valve body 1. A left cylinder sleeve 5 is installed at the right end inside the first flow cavity. The left cylinder sleeve 5 can be sealed with the left spool 6 through the first sealing ring 4.

[0052] The right valve body assembly includes a right valve body 13, a right spool 12, a right cylinder sleeve 10, a third sealing ring 11, and a second elastic element 14. The second elastic element 14 is installed at the right end of the right spool 12. The right spool 12 is slidably connected in a second flow cavity opened inside the right valve body 13. A right cylinder sleeve 10 is installed inside the second flow cavity. The right cylinder sleeve 10 can be sealed with the right spool 12 through the third sealing ring 11.

[0053] When neither the first elastic element 2 nor the second elastic element 14 is under force, the left valve body assembly and the right valve body assembly are sealed and do not allow fluid to flow through.

[0054] The right valve body assembly can be inserted into the left valve body assembly to connect the first flow cavity and the second flow cavity.

[0055] On the outer surface of the right valve core 6, there is a right valve core sealing ring groove 122. The third sealing ring 11 can be embedded in the right valve core sealing ring groove 122. When the right valve body assembly is inserted into the left valve body assembly, the second sealing ring 7 plays a sealing role between them.

[0056] As Figure 1 、 Figure 2 and Figure 4 shown, on the left end of the left valve core 6, there is a weight reduction hole 61. A valve core plug 3 is installed in the weight reduction hole 61, and the left end of the valve core plug 3 is an arc surface.

[0057] The left valve core 6 is an injection-molded part. Since the product is relatively thick and not easy to form, the inside of its left side is hollowed out for weight reduction, that is, the weight reduction hole 61. However, if the weight reduction hole 61 is not blocked in this case, when the medium flows from left to right, eddy currents will be generated here, increasing the flow resistance. Therefore, the valve core plug 3 is added and snapped into the weight reduction hole 61 to avoid the generation of eddy currents. At the same time, the design of the arc surface at the left end of the valve core plug 3 can effectively guide the flow, thereby reducing the flow resistance.

[0058] As Figure 4 and Figure 5 shown, on the left valve core 6, there is a left valve core guide post 63, and on the right valve core 12, there is a right valve core guide post 123.

[0059] The left valve core guide post 63 can guide the left valve core 6 when it slides left and right in the left cylinder sleeve 5, so that the left valve core 6 and the left cylinder sleeve 5 are coaxial. At the same time, on the left valve core 6, there are four left valve core support posts 62, and the left valve core support posts 62 can effectively support the left valve core 6 in the left valve body 1 to avoid skewing.

[0060] As Figure 1 and Figure 4 shown, on the right end of the left valve core 6, there is a left valve core ejector rod 64, and on the left end of the right valve core 12, there is a right valve core guide hole 121. The left valve core ejector rod 64 can be inserted into the right valve core guide hole 121.

[0061] On the right valve core 12, there is a right valve core guide post 123. The right valve core guide post 123 can play a guiding role when the right valve core 12 slides in the right valve body 13 and keep the right valve core 12 and the right valve body 13 coaxial.

[0062] As Figure 1 、 Figure 4 、 Figure 8 and Figure 9As shown, a backstop clip 9 is installed on the outer wall of the right part of the left valve body 1, and a backstop groove 15 is provided on the outer wall of the left part of the right valve body 13. The backstop clip 9 can be snapped into the backstop groove 15.

[0063] A guiding groove 81 is provided on the backstop clip fixing shell 8, and a backstop clip guiding post 91 is provided on the backstop clip 9. When the backstop clip 9 is pressed, the backstop clip guiding post 91 will move along the track of the guiding groove 81 and open to both sides. At this time, the backstop clip 9 is opened, and pulling it outwards can separate the right valve body assembly from the left valve body assembly. 。

[0064] As Figure 1 、 Figure 6 and Figure 7 shown, the left cylinder liner 5 is in interference fit with the inner wall of the first flow cavity through the left cylinder liner reverse teeth 51 provided on the inner circle, and the right cylinder liner 10 is in interference fit with the inner wall of the second flow cavity through the right cylinder liner reverse teeth 101 provided on the inner circle.

[0065] As Figures 1-3 shown, the outer walls of the connection ends of the left valve body 1 and the right valve body 13 with the pipeline are both provided with reverse teeth.

[0066] The reverse teeth facilitate the connection of the left valve body 1 and the right valve body 13 with the pipeline.

[0067] As Figures 1-3 shown, the first elastic element 2 and the second elastic element 14 are both springs.

[0068] An installation method of a quick-insert stop valve with a two-way stop function includes the following steps.

[0069] Step 1: Insert the end with reverse teeth on the outer wall of the left valve body assembly into the input pipeline (or output pipeline) to be connected.

[0070] Step 2: Insert the end with reverse teeth on the outer wall of the right valve body assembly into the output pipeline (or input pipeline) to be connected.

[0071] Step 3: Insert the right valve body assembly in Step 2 into the left valve body assembly in Step 1 until the backstop clip 9 of the left valve body is snapped into the backstop groove 15 provided on the outer wall of the right valve body.

[0072] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification or equivalent change made to the above embodiments according to the technical essence of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A quick-connect stop valve with a two-way shut-off function, comprising a left valve body assembly and a right valve body assembly, characterized in that, The left valve body assembly includes a left valve body (1), a left valve core (6), a left cylinder sleeve (5), a first sealing ring (4), and a first elastic element (2). The first elastic element (2) is installed at the left end of the left valve core (6). The left valve core (6) is slidably connected in a first flow cavity formed inside the left valve body (1). A left cylinder sleeve (5) is installed at the right end inside the first flow cavity. The left cylinder sleeve (5) can be sealed with the left valve core (6) through the first sealing ring (4). The right valve body assembly includes a right valve body (13), a right valve core (12), a right cylinder sleeve (10), a third sealing ring (11), and a second elastic element (14). The second elastic element (14) is installed at the right end of the right valve core (12). The right valve core (12) is slidably connected in a second flow cavity formed inside the right valve body (13). A right cylinder sleeve (10) is installed inside the second flow cavity. The right cylinder sleeve (10) can be sealed with the right valve core (12) through the third sealing ring (11). When both the first elastic element (2) and the second elastic element (14) are not stressed, the left valve body assembly and the right valve body assembly are sealed and non-flow-through. The right valve body assembly can be inserted into the left valve body assembly and connect the first flow cavity and the second flow cavity. A left valve core guide post (63) is provided on the left valve core (6), and a right valve core guide post (123) is provided on the right valve core (12). The left valve core guide post (63) can guide the left valve core (6) to slide left and right in the left cylinder sleeve (5) to keep the left valve core (6) and the left cylinder sleeve (5) coaxial. At the same time, four left valve core support posts (62) are provided on the left valve core (6), and the left valve core support posts (62) can effectively support the left valve core (6) in the left valve body (1) to avoid skew. A retaining clip (9) is installed on the outer wall of the right part of the left valve body (1), and a retaining groove (15) is provided on the outer wall of the left part of the right valve body (13). The retaining clip (9) can be clamped in the retaining groove (15). The left cylinder sleeve (5) is in interference fit with the inner wall of the first flow cavity through left cylinder sleeve reverse teeth (51) provided on the inner circle, and the right cylinder sleeve (10) is in interference fit with the inner wall of the second flow cavity through right cylinder sleeve reverse teeth (101) provided on the inner circle. A weight reduction hole (61) is provided at the left end of the left valve core (6), and a valve core plug (3) is installed in the weight reduction hole (61). The left end of the valve core plug (3) is an arc surface. The outer walls of the connection ends of the left valve body (1) and the right valve body (13) with the pipeline are both provided with reverse teeth.

2. The quick-connect stop valve with a two-way shut-off function according to claim 1, characterized in that, A left valve core ejector rod (64) is provided at the right end of the left valve core (6), and a right valve core guide hole (121) is provided at the left end of the right valve core (12). The left valve core ejector rod (64) can be inserted into the right valve core guide hole (121).

3. The quick-connect stop valve with a two-way shut-off function according to claim 1, characterized in that, Both the first elastic element (2) and the second elastic element (14) are springs.

4. An installation method of a quick-connect stop valve with a two-way shut-off function, characterized in that, Adopting a quick-insert stop valve with a two-way stop function according to any one of claims 1-3, includes the following steps. Step 1: Insert the end with reverse teeth on the outer wall of the left valve body assembly into the input pipeline (or output pipeline) to be connected. Step 2 Insert the end with reverse teeth on the outer wall of the right valve body assembly into the output pipeline (or input pipeline) to be connected. Step 3 Insert the right valve body assembly in Step 2 into the left valve body assembly in Step 1 until the anti-retreat clip (9) of the left valve body is clamped with the anti-retreat groove (15) opened on the outer wall of the right valve body.

Images