Quick connection ball valve

Abstract

The utility model provides a quick-connection ball valve which comprises two ball valves, the two ball valves are in linear clamping connection, each ball valve is provided with a through hole for fluid to pass through, each ball valve comprises a valve body, a valve element is arranged in each valve body, each valve element is connected with a valve rod, the end, away from the corresponding valve element, of each valve rod extends out of the corresponding valve body, and the end, extending out of the corresponding valve body, of each valve rod is connected with a handle. The handle drives the valve element to rotate through the valve rod. And the valve body is provided with a locking device. The locking device comprises a locking groove and a locking column; the handle is in driving connection with the locking column. When the handle is closed, the locking column is arranged in the valve body; when the two ball valves are in butt joint and the handle is opened, the handle drives the locking column to stretch into the locking groove of the other ball valve, the locking device locks the two ball valves, the two ball valves are prevented from rotating and disengaging, fluid leakage caused by looseness is avoided, and the safety of valve body connection is improved.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a quick-connect ball valve. Background Technology

[0002] A double ball valve is a type of valve used for quick pipeline connections. It achieves this by connecting two ball valves to the connecting pipes, then using quick-connect fittings provided with the ball valves. Because each ball valve has an independent sealing structure, it offers high sealing performance and reliability. Existing double ball valves use a snap-fit ​​connection for quick connection and a locking pin to prevent loosening. However, this existing structure allows the ball valves to detach even when the handle is open after quick connection, leading to fluid leakage and a low safety factor.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a quick-connect ball valve, which locks the valve when it is closed, simplifies operation, avoids fluid leakage, and improves valve safety.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a quick-connect ball valve, comprising two ball valves that are linearly snapped together. Each ball valve has a through-hole for fluid passage. Each ball valve includes a valve body containing a valve core connected to a valve stem. One end of the valve stem extends out of the valve body, and a handle is connected to the other end of the valve stem. The handle drives the valve core to rotate via the valve stem. The valve body is equipped with a locking device. The locking device includes a locking groove and a locking pin; the handle and the locking pin are drivenly connected. When the handle is closed, the locking pin is inside the valve body. When the two ball valves are connected and the handle is open, the handle drives the locking pin to extend into the locking groove of the other ball valve, locking the two ball valves. During use, the two ball valves are connected to the pipes to be connected. Rotating the handle closes the ball valves, ensuring the handle is in the closed position, the locking pin is inside the valve body, the locking device unlocks, and then the two ball valves are snapped together. Rotating the handles of both ball valves pushes the locking pins out of the valve bodies, allowing them to engage with the locking groove of the other ball valve. This locking mechanism secures the two valves, preventing them from rotating out and causing fluid leakage, thus improving the safety of the valve connection. When pipeline maintenance is required, rotating the handles closes the ball valves. With the handles in the closed position, the locking pins of both valves retract into the valve bodies, allowing the two valves to separate. At this point, the connected pipelines are sealed by the ball valves, eliminating the need for additional leak sealing and improving maintenance convenience.

[0006] Furthermore, in the aforementioned quick-connect ball valve, the handle comprises an integrally formed handle body and handle cover. The handle body has a quadrilateral cross-section, and the handle cover has a circular cross-section. A pressing part is located at the end of the handle cover furthest from the handle body, and the pressing part has an arc-shaped cross-section. The distance from the sidewall of the pressing part to the center of the handle cover increases from the direction closest to the handle body. A limiting groove is provided on the sidewall of the pressing part, and the limiting groove is arranged around the axis of the handle cover. One end of the locking pin abuts against the limiting groove. The quadrilateral cross-section of the handle body facilitates turning the handle; when the handle body is turned, the pressing part rotates around the handle cover. When both ball valve handles are in the closed position, the contact point between the pressing part and the locking pin is closest to the center of the handle cover. At this time, the locking pins of both ball valves are not pushed out of the valve body, and the two ball valves can disengage. When the handle of either ball valve is in the open position, the contact point between the pressing part and the locking pin is furthest from the center of the handle cover. At this time, the locking pin is pushed out of the valve body and extends into the locking groove of the other ball valve, locking the two connected ball valves. Closing the handle of the other ball valve pushes its locking pin out of the valve body, creating a double lock and improving locking stability. The locking pin is gradually pushed out of the locking groove by rotating the eccentrically shaped, arc-shaped cap. The entire locking process is smooth, allowing the operator to complete the locking action simultaneously with opening the ball valve, improving operational convenience. The operator can also quickly determine the locking status of the ball valve by observing its open position. If the ball valve cannot be fully opened (i.e., locking is incomplete), the operator can make timely adjustments, reducing the difficulty of operating the ball valve and minimizing safety hazards. Furthermore, the locking pin moves along the limit groove during cap rotation, preventing displacement and jamming, thus improving the stability of the ball valve.

[0007] Furthermore, in the aforementioned quick-connect ball valve, the locking device includes a locking boss located at the mating end of the ball valves. The locking boss is integrally formed with the valve body. A locking groove is provided on the side of the locking boss away from the handle. The locking boss has a through hole, which is a countersunk through hole. A locking pin passes through the through hole. The locking groove and locking pin are symmetrically located on both sides of the center of the valve body, and are correspondingly positioned. A limiting ring is integrally formed on the locking pin. A blocking ring is provided at the end of the locking pin away from the limiting ring. The blocking ring and the through hole are interference-fitted. A first spring is provided between the limiting ring and the blocking ring. The locking pin and the blocking ring are slidably connected. When the handle is in the closed position, the locking pin is located in the through hole. When the handle is in the open position, the locking pin extends out of the through hole. When the ball valves are mated, the locking bosses of the two ball valves abut against each other. Since the locking groove and locking pin are symmetrically located on both sides of the center of the valve body, the locking pin of the through hole of one ball valve aligns with the locking groove of the other ball valve. When the locking pin extends out of the valve body, it extends into the locking groove of the mating ball valve, completing the locking and preventing the two mating ball valves from rotating and loosening. When the ball valves open, the locking pin extends out of the valve body, and the limit ring moves towards the plug ring. A first spring is internally compressed between the limit ring and the plug ring. When both ball valves are closed, the first spring pushes the limit ring away from the plug ring, and the locking pins of both ball valves retract into the through hole. The two mating ball valves are unlocked and can be separated. The movement of the locking pin within the through hole, passing through and out of the plug ring, ensures stable movement of the locking pin, reduces gaps, and improves the stability of the locking of the two ball valves.

[0008] Furthermore, in the aforementioned quick-connect ball valve, a platform is provided on the lower side of the handle. The platform and the valve body are integrally formed. A limiting platform is provided around the valve stem axis on the platform, and limiting blocks are provided at both ends of the limiting platform. The limiting blocks provide a limit to the handle body. The limiting blocks provide a limit for the handle to open or close the ball valve. When the handle body and the limiting block abut, the ball valve is in a fully open or closed state, providing a reference for operating the ball valve. At the same time, the limiting blocks can prevent the ball valve from being over-opened or over-closed.

[0009] Furthermore, in the aforementioned quick-connect ball valve, the limiting platform is provided with semi-circular countersunk holes at both ends of the limiting platform, positioned close to the limiting block. The handle is equipped with an anti-accidental contact device, which is embedded in the semi-circular countersunk holes to prevent accidental activation. When the anti-accidental contact device is embedded in the semi-circular countersunk holes, the handle is in the fully open or fully closed position, providing a reference for operating the ball valve to be fully open or closed. Furthermore, when the anti-accidental contact device is embedded in the semi-circular countersunk holes, the handle cannot be moved, preventing accidental activation of the handle during use and avoiding misoperation.

[0010] Furthermore, in the aforementioned quick-connect ball valve, the anti-accidental contact device includes a pin disposed within the handle body. The pin has an I-shaped cross-section and a through hole on its lower side, within which a ball is disposed. The ball is located within the through hole in the handle body. A countersunk hole is provided at one end of the pin extending into the handle body, within which a second spring is disposed. One end of the second spring abuts against the handle body, and the end of the second spring away from the handle body abuts against the bottom of the countersunk hole in the pin. A retaining ring is slidably connected to the end of the pin away from the second spring, and the retaining ring and the countersunk hole in the handle body are interference-fitted. When the handle is in the open or closed position, the pin presses the ball into the semi-circular countersunk hole to form a lock, preventing accidental operation during use. When the handle needs to be turned, press the pin, and the middle section of the pin moves to the top of the ball. Because the pin's cross-section is I-shaped, there is space above the ball. As the handle is rotated, the ball rises and moves out of the semi-circular countersunk hole. When the handle is fully open or closed, part of the ball falls into the semi-circular countersunk hole. Releasing the pin causes the second spring to push the pin to move, with one end of the pin on the top of the ball, preventing the ball from falling out of the semi-circular countersunk hole. At this time, part of the ball is in the semi-circular countersunk hole and part is in the handle, locking the handle and preventing accidental operation, thus improving the safety of the quick-connect ball valve. Simultaneously, when the handle is fully open or closed, the anti-accidental contact device and locking device of one ball valve lock simultaneously, forming a double lock. The anti-accidental contact devices and locking devices of two ball valves form a quadruple lock, further improving the safety of the ball valve.

[0011] Furthermore, in the aforementioned quick-connect ball valve, the pin includes a first end and a second end, which are respectively located at both ends of the pin. The first end is positioned near the bottom of a countersunk hole on the handle body. A clearance portion is provided between the first and second ends, with a diameter smaller than that of the first and second ends. The clearance portion is connected to the first and second ends respectively via a bevel transition. A retaining ring is provided on the outer wall of the second end. The second end and the retaining ring are slidably connected. When the handle body is fully open or closed, the ball portion is within the semi-circular countersunk hole. Pressing the second end moves the pin, and the clearance portion moves to the upper side of the ball, allowing the handle body to rotate. When the handle body is fully open or closed, the ball falls into the semi-circular countersunk hole. Releasing the pin causes the second spring to push the pin, moving the first end to the upper side of the ball, locking the ball portion within the semi-circular countersunk hole. The ball portion remains within the handle, preventing the handle body from rotating and avoiding accidental operation.

[0012] Furthermore, in the aforementioned quick-connect ball valve, the two valve body abutting ends are provided with claws and grooves. When the two ball valves are connected, the claws and grooves cooperate to engage, achieving quick and secure engagement of the two ball valves.

[0013] Furthermore, in the aforementioned quick-connect ball valve, the locking jaws include a first locking jaw and a second locking jaw, and the locking grooves include a first locking groove and a second locking groove. The first locking jaws, second locking jaws, first locking grooves, and second locking grooves are spaced apart around the valve body axis. During the locking process, the first locking jaw of one ball valve extends into the second locking groove of another ball valve, and the second locking jaw of one ball valve extends into the first locking groove of another ball valve. The two ball valves rotate to complete the locking. The first locking jaw is larger than the second locking jaw, and the first locking jaw and second locking groove are correspondingly positioned, forming a foolproof structure. This ensures that the locking devices of the two ball valves are aligned during docking, avoiding docking errors, preventing invalid locking, and improving device safety.

[0014] Furthermore, in the aforementioned quick-connect ball valve, a connector is attached to the end of the valve body furthest from the catch. During use, the connector is connected to the pipeline, improving ease of use.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects: The quick-connect ball valve of this utility model can quickly connect two pipes through two ball valves. Closing the ball valves completes the locking, preventing the two ball valves from rotating out and causing fluid leakage due to loosening, thus improving the safety of the valve body connection. The ball valves can individually seal the connected pipes, eliminating the need for additional leak-sealing operations during maintenance, improving maintenance convenience. Closing both ball valves simultaneously locks the anti-accidental contact device and the locking device of each ball valve, forming a quadruple locking system, which is convenient to operate and improves the safety of the ball valves. The claws and grooves are equipped with a foolproof structure to ensure that the locking devices of the two ball valves are aligned during connection, avoiding incorrect connection and invalid locking, thus improving the safety of the ball valves. Attached Figure Description

[0016] Figure 1 This is a top view of the quick-connect ball valve of this utility model;

[0017] Figure 2 for Figure 1 The sectional view shown is along line AA.

[0018] Figure 3 for Figure 1 Enlarged view of a specific area;

[0019] Figure 4 Here is an exploded view of the ball valve;

[0020] Figure 5 Here is an exploded view of the ball valve;

[0021] Figure 6 This is a schematic diagram of the pin structure;

[0022] In the diagram: 1. Ball valve; 11. Valve body; 111. Platform; 112. Limiting platform; 1121. Limiting block; 1122. Semi-circular countersunk hole; 113. Claw; 1131. First claw; 1132. Second claw; 114. Slot; 1141. First slot; 1142. Second slot; 115. Connector; 12. Valve core; 13. Valve stem; 14. Handle; 15. Locking device; 141. Handle body; 142. 143. Cover, 1431. Pressing part, 1431. Limiting groove, 151. Locking boss, 152. Locking groove, 153. Through hole, 154. Locking post, 155. Limiting ring, 156. First spring, 157. Plug ring, 16. Anti-accidental contact device, 161. Pin, 1611. First end, 1612. Second end, 1613. Clearance part, 162. Second spring, 163. Retaining ring, 164. Ball. Detailed Implementation

[0023] Example 1

[0024] like Figure 1-2 The quick-connect ball valve shown includes two ball valves 1, which are linearly snapped together. Each ball valve 1 has a through-hole for fluid passage. Each ball valve 1 includes a valve body 11, within which a valve core 12 is housed. The valve core 12 is connected to a valve stem 13, with one end of the valve stem 13 extending out of the valve body 11 away from the valve core 12. A handle 14 is connected to the other end of the valve stem 13 extending out of the valve body 11. The handle 14 drives the valve core 12 to rotate via the valve stem 13. The valve body 11 is provided with a locking device 15. The locking device 15 includes a locking groove 152 and a locking pin 154 (see...). Figure 4 The handle 14 and locking pin 154 are driven together. Locking grooves 152 and locking pins 154 are symmetrically arranged on both sides of the center of the valve body 11. When the handle 14 is closed, the locking pin 154 is inside the valve body 11. When the two ball valves 1 are mated and the handle 14 is open, the locking pin 154 extends into the locking groove 152 of the other ball valve 1, and the locking device 15 locks the two ball valves 1. A connector 115 is connected to the end of the valve body 11 away from the pawl 113.

[0025] like Figure 3-4The quick-connect ball valve shown has a handle 14 comprising an integrally formed handle body 141 and handle cover 142. The handle body 141 has a quadrilateral cross-section, and the handle cover 142 has a circular cross-section. A pressing portion 143 is provided at the end of the handle cover 142 furthest from the handle body 141, and the pressing portion 143 has an arc-shaped cross-section. The distance from the sidewall of the pressing portion 143 to the center of the handle cover 142 increases from the direction closest to the handle body 141. A limiting groove 1431 is provided on the sidewall of the pressing portion 143, and the limiting groove 1431 is arranged around the axis of the handle cover 142. One end of the locking pin 154 abuts against the limiting groove 1431. The locking device 15 includes a locking boss 151 located at the mating end of the ball valve 1. The locking boss 151 and the valve body 11 are integrally formed. The locking boss 151 has a locking groove 152 on the side away from the handle 14. The locking boss 151 has a through hole 153, which is a countersunk through hole. A locking pin 154 passes through the through hole 153. The locking groove 152 and the locking pin 154 are symmetrically arranged on both sides of the center of the valve body 11, and the locking groove 152 and the locking pin 154 are correspondingly arranged. The locking pin 154 is integrally formed with a limiting ring 155. The end of the locking pin 154 away from the limiting ring 155 has a blocking ring 157. The blocking ring 157 and the through hole 153 are interference-fitted. A first spring 156 is provided between the limiting ring 155 and the blocking ring 157. The locking pin 154 and the blocking ring 157 are slidably connected. When the handle 14 is in the closed position, the locking pin 154 is inside the through hole 153; when the handle 14 is in the open position, the locking pin 154 extends out of the through hole 153.

[0026] like Figure 4-5 The quick-connect ball valve shown has two valve bodies 11 with abutting ends equipped with claws 113 and slots 114, which engage with each other. The claws 113 include a first claw 1131 and a second claw 1132, and the slots 114 include a first slot 1141 and a second slot 1142. The first claws 1131 and 1132, and the first and second slots 1141 and 1142 are spaced apart around the axis of the valve body 11. The first claw 1131 is larger than the second claw 1132, and the first and second slots 1142 are correspondingly positioned.

[0027] like Figure 5-6 The quick-connect ball valve shown has a platform 111 on the lower side of the handle 14. The platform 111 and the valve body 11 are integrally formed. A limiting platform 112 is provided around the valve stem 13 axis on the platform 111. Limiting blocks 1121 are provided at both ends of the limiting platform 112, and the limiting blocks 1121 provide limiting for the handle body 141. The limiting platform 112 has semi-circular countersunk holes 1122 at both ends of the limiting platform 112, and the semi-circular countersunk holes 1122 are located close to the limiting blocks 1121. The handle body 141 is provided with an anti-accidental contact device 16 (see...). Figure 2An anti-accidental touch device 16 is embedded in a semi-circular countersunk hole 1122 to prevent accidental touch. The anti-accidental touch device 16 includes a pin 161 disposed in the handle body 141. The pin 161 has an I-shaped axial section, and a ball 164 is provided on the lower side of the pin 161. One end of the pin 161 extending into the handle body 141 has a countersunk hole, and a second spring 162 is disposed in the countersunk hole. One end of the second spring 162 abuts against the handle body 141, and the other end of the second spring 162 away from the handle body 141 abuts against the bottom of the countersunk hole of the pin 161. A retaining ring 163 is slidably connected to the end of the pin 161 away from the second spring 162, and the retaining ring 163 and the countersunk hole of the handle body 141 are interference-fitted. The pin 161 includes a first end 1611 and a second end 1612, which are respectively located at both ends of the pin 161. The first end 1611 is located near the bottom of the countersunk hole provided in the handle body 141. A clearance portion 1613 is provided between the first end 1611 and the second end 1612. The diameter of the clearance portion 1613 is smaller than the diameter of the first end 1611 and the second end 1612. The clearance portion 1613 is connected to the first end 1611 and the second end 1612 through a bevel transition. A retaining ring 163 is provided on the outer wall of the second end 1612. The second end 1612 and the retaining ring 163 are slidably connected.

[0028] In use, two ball valves 1 are connected to the pipes to be connected via connectors 115. The handle 14 is rotated to close the ball valves 1, ensuring the handle 14 is in the closed position. The two ball valves 1 are then connected; the first claw 1131 of one ball valve 1 extends into the second groove 1142 of the other ball valve 1, and simultaneously the second claw 1132 extends into the first groove 1141 of the other ball valve 1. The two ball valves 1 are then rotated to complete the engagement. To open the valve, the pin 161 is pressed, the second spring 162 is deformed, and the clearance part 1613 moves to the upper side of the ball 164, unlocking the anti-accidental contact device 16. At this time, the handle 141 is rotated, and the ball 164 moves out of the semi-circular countersunk hole 1122 under the action of the handle 141, moving upwards to the lower side of the clearance part 1613. Simultaneously, the pressing part 143 on the handle 4 rotates, pushing the locking pin 154 out of the valve body 11. The locking pin 154 then extends into the locking groove 152 of another ball valve 1. When the handle 141 is moved to the fully open position, the ball 164 falls into the semi-circular countersunk hole 1122. The second spring 162 pushes the pin 161 to move, and the first end 1611 moves to the upper side of the ball 164. Part of the ball 164 is in the semi-circular countersunk hole 1122, and part of the ball 164 is in the handle 14. The ball 164 locks the handle 14 to prevent accidental operation. At this time, the locking pin 154 of one ball valve extends into the locking groove 152 of the other ball valve 1 to complete the locking. Similarly, rotating the handle 14 of the other ball valve 1 opens the ball valve 1, and the locking pin 154 of the other ball valve extends into the locking groove 152 of the docking ball valve, forming an interlock.

[0029] When it is necessary to separate the two ball valves 1, press the pin 161, the second spring 162 is squeezed and deformed, the clearance part 1613 moves to the upper side of the ball 164, and the anti-accidental contact device 16 is unlocked. At this time, rotate the handle body 141, and the ball 164 moves out of the semi-circular countersunk hole 1122 and into the handle 14 under the action of the handle body 141. Continue rotating the handle 141 until it is in the open position, causing it to abut against the limiting block 1121. The ball 164 falls into the semi-circular countersunk hole 1122 at the other end, releasing the outlet 161. The second spring 162 pushes the second end 1612 to move, and part of the second end 1612 moves out of the handle 141. The first end 1611 moves to the upper side of the ball 164, blocking the ball 164 in the semi-circular countersunk hole 1122. Part of the semi-circular countersunk hole 1122 is inside the handle 141, and part of it is inside the semi-circular countersunk hole 1122. The handle 141 is locked by the ball 164 embedded in the semi-circular countersunk hole 1122 and cannot move. The ball valve 1 is closed. At this point, the contact area between the pressing part 143 and the locking pin 154 is closest to the center of the handle cover 142. The first spring 156 pushes the limiting ring 155 away from the blocking ring 157, and the locking pin 154 retracts into the through hole 153, unlocking ball valve 1. Then, the other ball valve 1 is operated in the same way. By rotating the handle 14 of the other ball valve 1, the handle body 141 is rotated to the closed position, closing the ball valve. The locking pin 154 of the other ball valve 1 retracts into the through hole 153, unlocking the other ball valve 1. At this point, both ball valves 1 are closed and unlocked, and can be separated.

[0030] The above embodiments are exemplary and intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A quick-connect ball valve, characterized in that: The device includes two ball valves (1) that are connected in a straight line. Each ball valve (1) has a through hole for fluid to pass through. Each ball valve (1) includes a valve body (11) and a valve core (12) inside the valve body (11). The valve core (12) is connected to a valve stem (13). One end of the valve stem (13) extends out of the valve body (11) away from the valve core (12). The other end of the valve stem (13) extending out of the valve body (11) is connected to a handle (14). The handle (14) drives the valve core (12) to rotate through the valve stem (13). The valve body (11) is provided with a locking device (15). The locking device (15) includes a locking groove (152) and a locking pin (154). The handle (14) and the locking pin (154) are driven to connect. When the handle (14) is closed, the locking pin (154) is inside the valve body (11); when the two ball valves (1) are mated and the handle (14) is open, the handle (14) drives the locking pin (154) to extend into the locking groove (152) of the other ball valve (1), and the locking device (15) locks the two ball valves (1).

2. The quick-connect ball valve according to claim 1, characterized in that: The handle (14) includes an integrally formed handle body (141) and handle cover (142); the handle body (141) has a quadrilateral cross-section, the handle cover (142) has a circular cross-section, and the handle cover (142) has a pressing part (143) at one end away from the handle body (141), the pressing part (143) has an arc-shaped cross-section; from the direction close to the handle body (141) to the direction away from the handle body (141), the distance between the side wall of the pressing part (143) and the center of the handle cover (142) increases; the side wall of the pressing part (143) has a limiting groove (1431), the limiting groove (1431) is arranged around the axis of the handle cover (142), and one end of the locking post (154) abuts against the limiting groove (1431).

3. The quick-connect ball valve according to claim 2, characterized in that: The locking device (15) includes a locking boss (151) located at the mating end of the ball valve (1). The locking boss (151) and the valve body (11) are integrally formed. The locking boss (151) has a locking groove (152) on the side away from the handle (14). The locking boss (151) has a through hole (153). The through hole (153) is a countersunk through hole. A locking pin (154) passes through the through hole (153). The locking groove (152) and the locking pin (154) are symmetrically arranged on both sides of the center of the valve body (11). The locking pin (154) 4) A limiting ring (155) is integrally provided. A blocking ring (157) is provided at the end of the locking pin (154) away from the limiting ring (155). The blocking ring (157) and the through hole (153) are interference fit. A first spring (156) is provided between the limiting ring (155) and the blocking ring (157). The locking pin (154) and the blocking ring (157) are slidably connected. When the handle (14) is closed, the locking pin (154) is located in the through hole (153). When the handle (14) is open, the locking pin (154) extends out of the through hole (153).

4. The quick-connect ball valve according to claim 2, characterized in that: The handle (14) is provided with a platform (111) on the lower side. The platform (111) and the valve body (11) are integrally formed. The platform (111) is provided with a limiting platform (112) around the valve stem (13) axis. The limiting platform (112) is provided with limiting blocks (1121) at both ends. The limiting blocks (1121) provide a limit to the handle body (141).

5. The quick-connect ball valve according to claim 4, characterized in that: The limiting platform (112) is provided with a semi-circular countersunk hole (1122), which is located at both ends of the limiting platform (112). The semi-circular countersunk hole (1122) is located close to the limiting block (1121). The handle (141) is provided with an anti-accidental touch device (16), which is embedded in the semi-circular countersunk hole (1122) to avoid accidental touch.

6. The quick-connect ball valve according to claim 5, characterized in that: The anti-accidental touch device (16) includes a pin (161) horizontally disposed within the handle body (141). The pin (161) has an I-shaped cross-section. A ball (164) is provided on the lower side of the pin (161), and the ball (164) is disposed within a through hole in the handle body (141). One end of the pin (161) extending into the handle body (141) has a countersunk hole, and a second spring (162) is disposed within the countersunk hole. One end of the second spring (162) is connected to the handle body (141). The second spring (162) abuts against the bottom of the countersunk hole provided by the pin (161) at one end away from the handle (141); a retaining ring (163) is slidably connected to the end of the pin (161) away from the second spring (162), and the retaining ring (163) and the countersunk hole provided by the handle (141) are interference fit; when the handle (141) is open or closed, the pin (161) presses the ball (164) into the semi-circular countersunk hole (1122) to form a lock.

7. The quick-connect ball valve according to claim 6, characterized in that: The pin (161) includes a first end (1611) and a second end (1612), which are respectively located at both ends of the pin (161). The first end (1611) is located near the bottom of the countersunk hole provided on the handle body (141). A clearance part (1613) is provided between the first end (1611) and the second end (1612). The diameter of the clearance part (1613) is smaller than the diameter of the first end (1611) and the second end (1612). The clearance part (1613) is connected to the first end (1611) and the second end (1612) respectively through a bevel transition. A retaining ring (163) is provided on the outer wall of the second end (1612). The second end (1612) and the retaining ring (163) are slidably connected.

8. The quick-connect ball valve according to claim 1, characterized in that: The two valve bodies (11) are provided with a claw (113) and a groove (114) at their abutting ends; when the two ball valves (1) are connected, the claw (113) and the groove (114) cooperate to engage with each other.

9. The quick-connect ball valve according to claim 8, characterized in that: The claw (113) includes a first claw (1131) and a second claw (1132), and the slot (114) includes a first slot (1141) and a second slot (1142). The first claw (1131), the second claw (1132), the first slot (1141), and the second slot (1142) are spaced apart around the axis of the valve body (11). The first claw (1131) and the second slot (1142) are respectively arranged, and the second claw (1132) and the first slot (1141) are respectively arranged.

10. The quick-connect ball valve according to claim 8, characterized in that: The valve body (11) is connected to a connector (115) at the end away from the pawl (113).

Images