Positioning conveying device

Abstract

The utility model discloses a positioning conveying device which comprises a pushing shell, a hollow pushing pipe and a spring, one end of the pushing shell is an open end, and a clamping handle is arranged at the other end of the pushing shell; the hollow pushing pipe is movably arranged in the pushing shell, a plurality of clamping rings used for fixing sealing pieces are arranged at one end of the hollow pushing pipe at intervals, and the other end of the hollow pushing pipe is located outside the pushing shell. The spring is arranged on the hollow pushing pipe in a sleeving manner; when the hollow pushing pipe is pushed to enable the clamping ring to be exposed out of the opening end, the spring is extruded, and when the pushing shell is not subjected to external force, the pushing shell moves along the hollow pushing pipe under the action of the spring and pushes the sealing piece out of the clamping ring. The positioning and conveying device can be matched with rotating shafts of multiple sizes, and the sealing element can be quickly positioned and mounted.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of special equipment inspection, and particularly relates to a positioning conveying device. BACKGROUND

[0002] The emergency cut-off valve is an important safety accessory on a liquefied gas transport vehicle, which can cut off in an emergency when the gas and liquid flow reaches the rated value, preventing the gas and liquid from continuing to leak. Figure 1 As shown in the figure, the emergency cut-off valve is controlled to open and close by rotating the rotary shaft of the cut-off valve through external force. In order to ensure the sealing effect of the rotary shaft, four ring structures of rubber O-rings, polytetrafluoroethylene isolation washers, rubber O-rings and polytetrafluoroethylene isolation washers are sequentially installed on the rotary shaft, thereby playing a role in sealing the rotary shaft and preventing gas from leaking from the rotary shaft. However, during daily use, the four sealing rings will be worn out when the rotary shaft is rotated, which may cause the rubber O-rings to break and wear out, thereby causing gas leakage at the rotary shaft. At this time, rescue and repair of the emergency cut-off valve is needed to remove the damaged sealing ring and put in a new sealing ring. The specific operation is as follows: after the fixing nut is removed, the four ring structures (rubber O-rings, polytetrafluoroethylene isolation washers, rubber O-rings and polytetrafluoroethylene isolation washers) on the rotary shaft are hooked out in sequence with a hook needle, and then the new gasket and O-ring are replaced and the fixing nut is tightened again. However, in the actual process, due to the small size of the gasket and O-ring and the close fit with the rotary shaft, positioning during installation is difficult, and it is difficult to convey to the desired position, thereby causing the problem of wear and early breakage of the new gasket and O-ring. SUMMARY

[0003] The positioning conveying device provided by the embodiments of the present application can adapt to rotary shafts of multiple sizes and achieve rapid positioning and installation of sealing elements, thereby solving the problems of large manual operation errors and poor tool versatility.

[0004] The embodiments of the present application provide a positioning conveying device, which comprises:

[0005] A push shell, one end of which is an open end, and the other end is provided with a clamping handle;

[0006] A hollow push pipe, which is movably arranged in the push shell, and a plurality of clamping rings for fixing sealing elements are arranged at one end of the hollow push pipe, and the other end of the hollow push pipe is outside the push shell;

[0007] A spring, which is sleeved on the hollow push pipe;

[0008] When the hollow push tube is pushed to make the snap ring leak out of the open end, the spring is compressed, and when the push shell is not subjected to external force, the push shell moves along the hollow push tube under the action of the spring and pushes the sealing element out of the snap ring.

[0009] According to at least one embodiment of the present disclosure, the end surface of the hollow push tube is flush.

[0010] According to at least one embodiment of the present disclosure, one end of the hollow push tube opposite to the snap ring is provided with a push handle.

[0011] According to at least one embodiment of the present disclosure, a first protruding ring is arranged on the inner wall of the push shell close to the open end, and a second protruding ring is arranged on the hollow push tube, and the two ends of the spring abut against the first protruding ring and the second protruding ring respectively.

[0012] According to at least one embodiment of the present disclosure, the inner diameter of the first protruding ring is slightly larger than the outer diameter of the hollow push tube.

[0013] According to at least one embodiment of the present disclosure, the open end is in a trapezoidal structure, and the gap between the inner wall of the open end and the snap ring is not less than the outer diameter of the sealing element.

[0014] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0015] 1. Saving manpower and convenient operation;

[0016] 2. Making the replacement of the gasket and O-ring more accurate and avoiding further leakage caused by improper operation;

[0017] 3. Multi-purpose, saving materials, and applicable to various sizes of rotating shafts. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structure diagram of the positioning and conveying device in the embodiments of the present application;

[0019] Figure 2 The figure is an enlarged schematic view of structure A in the embodiments of the present application;

[0020] Figure 3 The figure is a schematic view of the use state of the positioning and conveying device in the embodiments of the present application;

[0021] Figure 4 The figure is a three-dimensional sectional view of the positioning and conveying device in the embodiments of the present application;

[0022] Figure 5A schematic diagram of a three-dimensional structure of the positioning and conveying device in the embodiment of the present application;

[0023] Figure 6 A schematic diagram of a working state of the positioning and conveying device in the embodiment of the present application. DETAILED DESCRIPTION

[0024] The positioning and conveying device provided in the embodiment of the present application can solve the problems of large manual operation error and poor tool versatility in replacing the rotating shaft seal, and can accurately replace the seal through positioning and conveying of the seal by the positioning and conveying device, thereby avoiding further leakage caused by improper operation. The device has simple structure and low processing difficulty, and can be mass-produced.

[0025] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0026] Embodiment 1

[0027] As shown in Figure 1 and Figure 2 , the positioning and conveying device in the embodiment of the present application comprises a pushing shell 10, a hollow pushing pipe 20 and a spring 30. One end of the pushing shell 10 is an open end, and the other end is provided with a clamping handle. The hollow pushing pipe 20 is movably arranged in the pushing shell 10. A plurality of clamping rings for fixing the seal are arranged at intervals at one end of the hollow pushing pipe 20, and the other end is outside the pushing shell 10. The spring 30 is sleeved on the hollow pushing pipe 20.

[0028] When the hollow pushing pipe 20 is pushed to make the clamping ring leak out of the open end, the spring 30 is compressed. When the pushing shell 10 is not subjected to external force, the pushing shell 10 moves along the hollow pushing pipe 20 under the action of the spring 30 and pushes the seal out of the clamping ring. As shown in Figure 4 and Figure 5 .

[0029] In this embodiment, the end surface of the hollow pushing pipe is flush. Preferably, a pushing handle is arranged on the hollow pushing pipe relative to one end of the clamping ring.

[0030] Exemplarily, as shown in Figure 1 and Figure 4 , a first protruding ring is arranged on the inner wall of the pushing shell 10 close to the open end, and a second protruding ring is arranged on the hollow pushing pipe 20. The two ends of the spring 30 abut against the first protruding ring and the second protruding ring, respectively. The first protruding ring and the second protruding ring are arranged to facilitate the selection of the spring, so as to control the pushing force of the pushing shell 10 and avoid damage to the seal caused by excessive rebound force or insufficient pushing force caused by too small rebound force.

[0031] In this embodiment, the inner diameter of the first convex ring is slightly larger than the outer diameter of the hollow push tube, and the first convex ring can guide the hollow push tube 20 and keep the coaxiality of the hollow push tube 20 and the push shell 10.

[0032] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0033] The positioning and conveying device in the embodiments of the present application can realize positioning and installation of a rotating shaft sealing element, solve the technical bottleneck of large manual operation error and poor tool universality, and realize adaptation of sealing elements of multiple specifications by replacing the hollow push tube.

[0034] The action process of the embodiments of the present disclosure is implemented as follows:

[0035] As shown in Figures 3-5 , the gaskets and O-rings to be conveyed are pre-installed in the snap rings at the top of the hollow push tube 20; when the positioning and conveying device reaches the specified position, the push shell 10 sends the gaskets and O-rings into the specified position under the action of the spring 30.

[0036] As shown in Figure 6 , it is a working state diagram of the positioning and conveying device; when the O-rings and gaskets need to be replaced due to leakage at the rotating shaft of the emergency shut-off valve, the clamping handle clamping the push shell and the push handle of the hollow push tube 20 are clamped, at this time, the snap rings on the hollow push tube 20 are exposed to the open end of the push shell 10, at this time, the gaskets and O-rings to be replaced are sequentially placed between the snap rings on the hollow push tube 20, when the positioning and conveying device is inserted into the rotating shaft (as shown in Figure 6 ) and reaches the specified position, the clamping handle of the push shell 10 is loosened, at this time, under the action of the spring 30, the gaskets and O-rings to be installed are pushed out by the push shell 10 and placed in the correct position, and the entire installation process is assisted by the pusher, avoiding the situation that the installation is not in place and the installation form is not correct when manually installed, thereby aggravating wear and leakage.

[0037] Although the preferred embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0039] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. A positioning conveyor, characterized by The utility model relates to a pusher, comprising: a pusher shell with an open end at one end and a clamping handle at the other end; a hollow pusher tube movably arranged in the pusher shell, with a plurality of snap rings for fixing a sealing element at one end and outside the pusher shell at the other end; a spring sleeved on the hollow pusher tube; when the hollow pusher tube is pushed to make the snap rings leak out of the open end, the spring is compressed, and when the pusher shell is not subjected to external force, the pusher shell moves along the hollow pusher tube under the action of the spring and pushes the sealing element out of the snap rings.

2. The positioning and delivery device of claim 1, wherein, The end surface of the hollow pusher tube is flush.

3. Positioning and conveying device according to claim 1 or 2, characterized in that A push handle is arranged on the hollow pusher tube opposite one end of the snap rings.

4. The positioning and delivery device of claim 1, wherein, A first protruding ring is arranged on the inner wall of the pusher shell close to the open end, a second protruding ring is arranged on the hollow pusher tube, and the two ends of the spring abut against the first and second protruding rings respectively.

5. The positioning and delivery device of claim 4, wherein, The inner diameter of the first protruding ring is slightly larger than the outer diameter of the hollow pusher tube.

6. The positioning and delivery device of claim 1, wherein, The open end is in a trapezoidal structure, and the gap between the inner wall of the open end and the snap rings is not less than the outer diameter of the sealing element.

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