CN211259831U

CN211259831U - Self-locking connecting device

Info

Publication number: CN211259831U
Application number: CN201922453119.5U
Authority: CN
Inventors: 黎明勇; 周延; 万明权
Original assignee: Yibin Shenlong Agricultural Equipment Co ltd
Current assignee: Yibin Shenlong Agricultural Equipment Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a pipe connection device field. The self-locking connecting device comprises a valve shell and a valve core arranged in the valve shell, wherein a rotary rod is arranged at the top of the valve shell, the lower end of the rotary rod extends into the valve shell to be connected with the valve core, and the upper end of the rotary rod is connected with an operating handle; the operating handle consists of a holding section, an inclined section and a connecting section; the inclined section is sleeved with a locking sleeve, and the locking sleeve and the inclined section form sliding fit along the length direction of the inclined section; the front side and the right side of the top of the valve shell are respectively provided with a first locking block and a second locking block, and the bottom of the locking sleeve is provided with an inverted U-shaped locking clamp; when the locking clamp is opposite to the second locking block, the valve core is in an open state. The utility model discloses can realize the locking to the valve, prevent the valve malfunction.

Description

Self-locking connecting device

Technical Field

The utility model relates to a pipe connection device, concretely relates to pipeline valve with self-locking function.

Background

The valve body inside the valve is controlled to rotate through a handle on the valve, so that the valve is opened and closed, and a limit spigot of the valve is designed for limiting the maximum rotation position of the handle. However, in practical application, the commonly used valve is found to be easy and convenient to operate due to the rotation of the handle, and has no self-locking function, so that misoperation or tripping by other objects is easily caused in the using process, and the valve is further mistakenly opened or closed to influence the normal work of the valve.

Disclosure of Invention

An object of the utility model is to provide a can prevent self-locking connecting device of maloperation.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a self-locking connecting device comprises a valve shell and a valve core arranged in the valve shell, wherein a rotary rod is arranged at the top of the valve shell, the lower end of the rotary rod extends into the valve shell to be connected with the valve core, and the upper end of the rotary rod is connected with an operating handle;

the operating handle consists of a holding section, an inclined section and a connecting section; the inclined section is sleeved with a locking sleeve, and the locking sleeve and the inclined section form sliding fit along the length direction of the inclined section; the front side and the right side of the top of the valve casing are respectively provided with a first locking block and a second locking block, the bottom of the locking sleeve is provided with an inverted U-shaped locking clamp, and a bayonet of the locking clamp is matched with the first locking block and the second locking block; when the locking clamp is opposite to the first locking block, the valve core is in a closed state; when the locking clamp is opposite to the second locking block, the valve core is in an open state.

Preferably, a connecting hole matched with the rotating rod is formed in the connecting section of the operating handle, and the connecting hole is sleeved on the rotating rod; the top of rotary rod sets up the screw thread to the adaptation has packing ring and nut, the linkage segment passes through the nut locking on the rotary rod.

Preferably, a first stop block and a second stop block are respectively arranged on the left side surface and the rear side surface of the top of the valve shell, a hooked limiting head is arranged on one side, away from the inclined section, of the connecting section, and the limiting head is located between the first stop block and the second stop block; when the limiting head rotates to be in contact with the first stop block, the valve core is in an open state; when the limiting head rotates to be in contact with the second stop block, the valve core is in a closed state.

The beneficial effects of the utility model are concentrated and are embodied in: the locking of the valve can be realized, and the malfunction of the valve is prevented. Particularly, in the use process of the utility model, an operator holds the operating handle to operate, and when the operating handle rotates to be opposite to the first locking block and the second locking block, the valve is correspondingly in a closing state and an opening state; the locking sleeve slides downwards along the inclined section of the operating handle, the bayonet of the locking clamp just locks the first locking block or the second locking block, the locking of the operating handle is completed, the locking of the valve is actually completed, and therefore misoperation can be effectively prevented. When the valve needs to be unlocked, the locking sleeve slides upwards along the inclined section, the locking clamp withdraws from the first locking block or the second locking block, the unlocking is completed, and the normal opening and closing operation of the valve is not influenced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic perspective view of another perspective of the present invention;

fig. 4 is a schematic view showing the construction of the valve housing in a state where the operating handle is not assembled;

fig. 5 is a schematic structural view of the operating handle.

Detailed Description

With reference to fig. 1-5, the self-locking connecting device is the same as a conventional manual ball valve, and the self-locking connecting device also comprises a valve housing 1 and a valve core arranged in the valve housing 1, wherein the valve core is a ball-type valve core. The top of valve casing 1 sets up rotary rod 2, the lower extreme of rotary rod 2 stretches into in the valve casing 1 and is connected with the case, and the upper end is connected with operating handle. The rotating rod 2 is driven to rotate through the operating handle, and the rotating rod 2 drives the valve core to rotate, so that the valve is switched on and off. As shown in fig. 5, the operating handle includes a grip section 3, an inclined section 4, and a connecting section 5.

The installation mode of operating handle is more, for example: the simplest way is that the operating handle is directly welded on the rotating rod 2, and can also be directly molded integrally. However, in consideration of convenience and workability of installation, it is preferable that the connection section 5 of the operating handle is provided with a connection hole 10 to be engaged with the rotary rod 2, and is fitted over the rotary rod 2 through the connection hole 10. The top end of the rotary rod 2 is provided with threads and is matched with a washer 11 and a nut 12, and the connecting section 5 is locked on the rotary rod 2 through the nut 12.

The operating handle is composed of a holding section 3, an inclined section 4 and a connecting section 5. The inclined section 4 of the operating handle is sleeved with a locking sleeve 6, and the locking sleeve 6 and the inclined section 4 form sliding fit along the length direction of the inclined section 4. That is to say, the locking sleeve 6 can slide back and forth on the inclined section 4, the inclined section 4 can be in the shape of a sheet, a cylinder, a square column or the like, and the inner hole of the locking sleeve 6 is designed according to the inclined section 4. As shown in the figure, the inclined section 4 is sheet-shaped, and then the locking sleeve 6 is flat and matched with the inclined section and sleeved outside.

In general, in order to limit the rotation position of the operating handle, as in the conventional valve, the present invention may further include, as shown in fig. 1 and 4, a first stop 13 and a second stop 14 are respectively disposed on a left side and a rear side of the top of the valve housing 1, a hook-shaped limiting head 15 is disposed on a side of the connecting section 5 away from the inclined section 4, and the limiting head 15 is located between the first stop 13 and the second stop 14. When the limiting head 15 rotates to be in contact with the first stop 13, the valve core is in an open state. When the limiting head 15 rotates to contact with the second stop 14, the valve core is in a closed state.

The utility model discloses the biggest difference lies in, as shown in fig. 1 and 4, the leading flank and the right flank at valve casing 1 top are provided with first locking piece 7 and second locking piece 8 respectively, the bottom of locking cover 6 is provided with the locking card 9 of an inverted U-shaped, the bayonet socket of locking card 9 cooperatees with first locking piece 7 and second locking piece 8. When the locking clip 9 slides down on the locking sleeve 6, the bayonet can be clipped on the first locking block 7 or the second locking block 8, so that the circumferential position of the operating handle can be locked. That is, when the locking clip 9 is opposite to the first locking piece 7, the valve core is in a closed state. When the locking clip 9 is opposite to the second locking block 8, the valve core is in an open state.

When the utility model is used, an operator holds the operating handle to operate, and when the operating handle rotates to be opposite to the first locking block 7 and the second locking block 8, the valve is correspondingly in a closing and opening state; the locking sleeve 6 slides downwards along the inclined section 4 of the operating handle, the bayonet of the locking clamp 9 just clamps the first locking block 7 or the second locking block 8, the locking of the operating handle is completed, the locking of the valve is actually completed, and therefore misoperation can be effectively prevented. When the valve needs to be unlocked, the locking sleeve 6 slides upwards along the inclined section, the locking clamp 9 withdraws from the first locking block 7 or the second locking block 8, the unlocking is completed, and the normal opening and closing operation of the valve is not influenced.

Claims

1. A self-locking connecting device comprises a valve casing (1) and a valve core arranged in the valve casing (1), wherein a rotating rod (2) is arranged at the top of the valve casing (1), the lower end of the rotating rod (2) extends into the valve casing (1) to be connected with the valve core, and the upper end of the rotating rod is connected with an operating handle;

the method is characterized in that: the operating handle consists of a holding section (3), an inclined section (4) and a connecting section (5); the inclined section (4) is sleeved with a locking sleeve (6), and the locking sleeve (6) and the inclined section (4) form sliding fit along the length direction of the inclined section (4); the front side and the right side of the top of the valve casing (1) are respectively provided with a first locking block (7) and a second locking block (8), the bottom of the locking sleeve (6) is provided with an inverted U-shaped locking clamp (9), and a bayonet of the locking clamp (9) is matched with the first locking block (7) and the second locking block (8); when the locking clamp (9) is opposite to the first locking block (7), the valve core is in a closed state; when the locking clamp (9) is opposite to the second locking block (8), the valve core is in an open state.

2. The self-locking connection of claim 1, wherein: a connecting hole (10) matched with the rotating rod (2) is formed in the connecting section (5) of the operating handle, and the connecting hole (10) is sleeved on the rotating rod (2); the top of rotary rod (2) sets up the screw thread to the adaptation has packing ring (11) and nut (12), linkage segment (5) are through nut (12) locking on rotary rod (2).

3. The self-locking connection of claim 2, wherein: a first stop block (13) and a second stop block (14) are respectively arranged on the left side surface and the rear side surface of the top of the valve shell (1), a hooked limiting head (15) is arranged on one side, away from the inclined section (4), of the connecting section (5), and the limiting head (15) is located between the first stop block (13) and the second stop block (14); when the limiting head (15) rotates to be in contact with the first stop block (13), the valve core is in an open state; when the limiting head (15) rotates to be in contact with the second stop block (14), the valve core is in a closed state.