A lock key for a valve passageway

Abstract

The utility model discloses a valve passageway inner lock key mainly relates to heating equipment field. Including holding connecting rod, clamping sleeve, the holding connecting rod sets up below position of clamping sleeve, two arc surface sleeve board combination forms clamping sleeve, and has the adhesion gap between two arc surface sleeve board, is provided with the shielding protruding, nut clamping position in every arc surface sleeve board's upper end position, the shielding protruding sets up the outside position of nut clamping position. The utility model has the beneficial effect that can cooperate with the structure of the interception end and set, so that the staff can easily disassemble the interception end in the interception pipeline through the device, and at the same time, the effect that the interception end cannot be disassembled by the device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment, specifically a valve channel internal lock key. Background Technology

[0002] To prevent heat theft in community heating systems, a heat theft valve has been installed, as shown in the attached diagram in the instruction manual. Figure 4 As shown, when a resident wants to disassemble the shut-off end privately through work, they need to use a tool to clamp the nut end in a relatively confined space within the shut-off pipe, using a shielding device, and apply sufficient force to the nut end to achieve disassembly. This is impractical with traditional tools. Even with conventional tools, the installation and disassembly of the shut-off end cannot be accomplished.

[0003] Therefore, to address this problem, a valve channel lock key is installed, which can be configured in conjunction with the structure of the shut-off end. This allows workers to easily disassemble the shut-off end inside the shut-off pipe using this device, while simultaneously achieving the effect that the shut-off end cannot be disassembled without this device. Utility Model Content

[0004] The purpose of this utility model is to provide a lock key setting inside a valve channel, which can be set in conjunction with the structure of the shut-off end, so that the operator can easily disassemble the shut-off end inside the shut-off pipe using this device, while achieving the effect that the shut-off end cannot be disassembled without this device.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A valve channel internal lock key includes a gripping link and a locking sleeve; the gripping link is located below the locking sleeve; two arc-shaped sleeve plates are combined to form the locking sleeve, and a fitting gap is left between the two arc-shaped sleeve plates; a blocking protrusion and a nut locking position are provided at the upper end of each arc-shaped sleeve plate, and the blocking protrusion is located outside the nut locking position.

[0007] The gripping link is rigidly connected to the snap-fit ​​sleeve. When the gripping link is pressed toward the throttling end, the two arc-shaped sleeves undergo elastic deformation toward both sides, causing the blocking protrusion to pass through the blocking member on the throttling end and causing the nut end to fall into the nut snap-fit ​​position.

[0008] A limiting sleeve is slidably provided on the outer side of the snap-fit ​​sleeve, and the upper circumferential dimension of the snap-fit ​​sleeve is larger than the lower circumferential dimension; when the limiting sleeve slides to the upper position of the snap-fit ​​sleeve, the gap between the two arc-shaped sleeve plates is reduced by the limiting sleeve, thereby limiting the distance between the two arc-shaped sleeve plates.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This device, when installed, utilizes a snap-fit ​​sleeve to facilitate the disassembly of the flow-stopping end. It is designed to work seamlessly with the structure of the flow-stopping end, allowing operators to easily remove the end from the flow-stopping pipe, achieving the same effect as other methods that would prevent disassembly of the end. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Appendix Figure 2 This is a schematic diagram of the valve body of this utility model.

[0013] Appendix Figure 3 This is a schematic diagram of the internal structure of the valve body of this utility model.

[0014] Appendix Figure 4 This is a schematic diagram of the structure of the intercepting end of this utility model.

[0015] The labels shown in the attached diagram:

[0016] 1. Holding rod; 2. Snap-fit ​​sleeve; 3. Arc-shaped sleeve plate; 4. Fitting gap; 5. Covering protrusion; 6. Nut snap-fit ​​position; 7. Limiting sleeve; 8. Cut-off pipe; 9. Mating position; 10. Cut-off end; 11. Cut-off part; 12. Disassembly part; 13. Nut end; 14. Covering component. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0018] First, the configuration of the throttling end 10 is described below:

[0019] It includes a valve body and a flow-blocking pipe 8; the flow-blocking pipe 8 is disposed on the outside of the valve body and is connected to the valve body; a flow-blocking end 10 is provided at the inner end of the flow-blocking pipe 8. When the flow-blocking end 10 is fixed at the inner end of the flow-blocking pipe 8, the flow-blocking end 10 obstructs the connection between the two ends of the valve body and cuts off the flow in the valve body.

[0020] The flow-stopping end 10 includes a flow-stopping part 11 and a disassembly part 12. The disassembly part 12 includes a nut end 13 and a blocking member 14. The blocking member 14 is located on the outside of the nut end 13, blocking the maximum circumferential radius of the nut. A snap-fit ​​fitting is provided with the nut end 13, which passes through the blocking member 14 and fits against the nut end 13. The blocking member 14 is located on the outside of the nut end 13, thus blocking the maximum radius of the nut end 13. If a resident wants to disassemble the flow-stopping end 10 privately, they need to use tools to clamp the nut end 13 in the relatively narrow space of the flow-stopping pipe 8, using the blocking member 14, and apply sufficient force to the nut end 13 to achieve the disassembly operation. This is impractical with traditional tools. Even though the installation and removal of the shut-off end 10 cannot be achieved using conventional tools, specific structural designs for the snap-fit ​​fitting are required to address this issue.

[0021] A valve channel internal lock key includes a gripping link 1 and a locking sleeve 2; the gripping link 1 is located below the locking sleeve 2; two arc-shaped sleeve plates 3 are combined to form the locking sleeve 2, and a fitting gap 4 is left between the two arc-shaped sleeve plates 3; a blocking protrusion 5 and a nut locking position 6 are provided at the upper end of each arc-shaped sleeve plate 3, and the blocking protrusion 5 is located on the outside of the nut locking position 6; when the gripping link 1 is pressed toward the throttling end 10, the two arc-shaped sleeve plates 3 undergo elastic deformation to both sides, causing the blocking protrusion 5 to pass through the blocking member 14 on the throttling end 10, and causing the nut end 13 to fall into the nut locking position 6. Because traditional disassembly tools cannot easily reach into the intercepting pipe 8 and effectively clamp and disassemble the nut end 13, the snap-fit ​​sleeve 2 is configured as two arc-shaped sleeve plates 3. A blocking protrusion 5 and a nut snap-fit ​​position 6 are set at the upper end of the arc-shaped sleeve plates 3. The snap-fit ​​sleeve 2 is made of metal, meaning that when a force is applied to the snap-fit ​​sleeve 2 towards the blocking member 14, the blocking protrusion 5 passes through the blocking member 14, causing the nut to snap into place and engage with the nut end 13. In this case, the snap-fit ​​sleeve 2 can be rotated, and the intercepting end 10 can be removed from the engagement position 9 under the applied force. Most importantly, the snap-fit ​​sleeve 2 is configured as two arc-shaped sleeve plates 3 because two issues need to be considered: first, ensuring that the blocking protrusion 5 can pass smoothly through the blocking member 14; second, ensuring that the nut snap-fit ​​position 6 can effectively engage with the nut end 13. Therefore, after setting the two curved sleeve plates 3, the fitting gap 4 between the curved sleeve plates 3 can provide space for the shielding protrusion 5 to pass smoothly through the shielding member 14.

[0022] To ensure that the nut locking position 6 can effectively engage with the nut end 13, a limiting sleeve 7 is slidably provided on the outer side of the locking sleeve 2, and the upper circumference of the locking sleeve 2 is larger than the lower circumference. When the limiting sleeve 7 slides to the upper position of the locking sleeve 2, it reduces the gap between the two arc-shaped sleeve plates 3, limiting the distance between them. That is, after setting the limiting sleeve 7, the upper positions of the two arc-shaped sleeve plates 3 can be locked, allowing the nut locking position 6 to effectively engage with the nut end 13. This enables the flow-stopping end 10 to be stably removed from the mating position 9 when the locking sleeve 2 rotates. After removing the flow-stopping end 10, the limiting sleeve 7 can slide down to reduce the distance between the upper ends of the two arc-shaped sleeve plates 3, making it easier for workers to remove the flow-stopping end 10 from the upper ends of the two arc-shaped sleeve plates 3.

[0023] Therefore, the setting of a lock key in the valve channel can be configured in conjunction with the structure of the shut-off end 10, so that the operator can easily disassemble the shut-off end 10 in the shut-off pipe 8 using this device, while achieving the effect that the shut-off end 10 cannot be disassembled without this device.

Claims

1. A valve channel internal lock key, characterized in that: Includes a gripping link (1) and a snap-fit ​​sleeve (2); the gripping link (1) is located below the snap-fit ​​sleeve (2); Two arc-shaped sleeves (3) are combined to form the snap-fit ​​sleeve (2), and a fitting gap (4) is left between the two arc-shaped sleeves (3); a shielding protrusion (5) and a nut snap-fit ​​position (6) are provided at the upper end of each arc-shaped sleeve (3), and the shielding protrusion (5) is located on the outside of the nut snap-fit ​​position (6).

2. The valve passage internal lock key according to claim 1, characterized in that: The gripping link (1) is rigidly connected to the snap-fit ​​sleeve (2). When the gripping link (1) is pressed toward the throttling end (10), the two arc-shaped sleeves (3) undergo elastic deformation toward both sides, causing the shielding protrusion (5) to pass through the shielding member (14) on the throttling end (10) and causing the nut end (13) to fall into the nut snap-fit ​​position (6).

3. The valve passage internal lock key according to claim 2, characterized in that: A limiting sleeve (7) is slidably provided on the outside of the snap-fit ​​sleeve (2), and the upper circumferential dimension of the snap-fit ​​sleeve (2) is larger than the lower circumferential dimension; When the limiting sleeve (7) slides to the upper position of the snap sleeve (2), the gap between the two arc-shaped sleeves (3) is reduced by the limiting sleeve (7), thus limiting the distance between the two arc-shaped sleeves (3).

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