CN216390258U - Auxiliary device for preventing handcart crank from falling off - Google Patents
Auxiliary device for preventing handcart crank from falling off Download PDFInfo
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- CN216390258U CN216390258U CN202122812202.4U CN202122812202U CN216390258U CN 216390258 U CN216390258 U CN 216390258U CN 202122812202 U CN202122812202 U CN 202122812202U CN 216390258 U CN216390258 U CN 216390258U
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- crank
- auxiliary device
- connecting shaft
- falling
- handcart
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Abstract
The utility model discloses an auxiliary device for preventing a handcart crank from falling off, which is arranged on a connecting shaft connected with the handcart crank and comprises: the body is of a rectangular box structure; the top of the body is provided with a circular hole; one end of the spring is fixed on the bottom surface inside the body; the marble consists of two hemispheres with different diameters, and the centers of the two hemispheres are overlapped; the hemisphere with the large diameter is arranged in the body and is connected with the other end of the spring; the hemisphere with small diameter can penetrate through a circular hole formed in the top of the body; one end of the top of the connecting shaft is provided with a groove in which the auxiliary device can be placed. According to the auxiliary device provided by the utility model, the marble on the connecting shaft can clamp the crank after the crank is inserted, so that the crank and the connecting shaft are prevented from displacement and falling off, and the defects of the prior art are overcome.
Description
Technical Field
The utility model belongs to the technical field of operation and maintenance construction of transformer substations, and particularly relates to an auxiliary device for preventing a handcart crank from falling off.
Background
Most of the 10kv and 35kv equipment of many transformer substations use handcart type switch cabinets nowadays. When the handcart of the operation switch cabinet is put into and withdrawn, an operator is required to insert the crank into the switch cabinet, and the crank is uniformly and quickly shaken. During operation, discharge is generated between the moving contact and the static contact, and the contact can be burnt out if the discharge time is too long. Handcart crank on the market at present mostly is the formula of cuting straightly, does not have anti-drop design, and very easily appear dropping, the card when the crank waves, has constituted the threat to equipment and operating personnel's safety.
Disclosure of Invention
Based on the problems of the prior art, the utility model provides an auxiliary device for preventing a handcart crank from falling off.
The utility model is realized by the following technical scheme:
an auxiliary device for preventing a handcart crank from falling off is arranged on a connecting shaft connected with the handcart crank;
the assist device includes:
the body is of a rectangular box structure; the top of the body is provided with a circular hole;
one end of the spring is fixed on the bottom surface inside the body;
the marble consists of two hemispheres with different diameters, and the centers of the two hemispheres are overlapped; the hemisphere with the large diameter is arranged in the body and is connected with the other end of the spring; the hemisphere with small diameter can penetrate through a circular hole formed in the top of the body;
one end of the top of the connecting shaft is provided with a groove in which the auxiliary device can be placed.
Preferably, the top surface of the body is flush with the top surface of the connecting shaft.
Preferably, the diameter of the hemisphere with the large diameter is larger than that of the circular hole formed at the top of the body.
According to the auxiliary device for preventing the handcart crank from falling off, the marble on the connecting shaft can clamp the crank after the crank is inserted, the crank and the connecting shaft are prevented from displacement and falling off, and the defects of the prior art are overcome; the utility model has simple structure and easy operation.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention mounted on a connecting shaft;
fig. 3 is a schematic view of the connection of the connecting shaft and the hand truck crank.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings, and those skilled in the art will understand that the following embodiments are illustrative of the present invention only, and should not be construed as limiting the scope of the present invention. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
With reference to fig. 1-3, an auxiliary device for preventing a handcart crank from falling off is provided, wherein the auxiliary device 1 is arranged on a connecting shaft 3 connected with a handcart crank 2;
the assist device 1 includes:
the body 11 is a rectangular box structure; the top of the body 11 is provided with a circular hole;
a spring 12, one end of the spring 12 is fixed on the bottom surface of the inner part of the body 11;
the marble 13 consists of two hemispheres with different diameters, and the centers of the two hemispheres are overlapped; the hemisphere with the large diameter is arranged in the body 11 and is connected with the other end of the spring 12; the hemisphere with small diameter can pass through a circular hole formed in the top of the body 11; the diameter of the hemisphere with the large diameter is larger than that of the circular hole formed in the top of the body 11;
one end of the top of the connecting shaft 3 is provided with a groove in which the auxiliary device 1 can be placed; the top surface of the body 11 is flush with the top surface of the connecting shaft 3.
The utility model can clamp the crank by the marble on the connecting shaft after the crank is inserted, and prevent the crank and the connecting shaft from displacement and falling off; after the operation is finished, the spring ball is pulled outwards with a little force, and the crank presses the spring ball downwards so as to withdraw from the crank. The utility model solves the problem that the discharging time of the contact is too long due to the falling of the crank when the switch cabinet is operated.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (3)
1. The utility model provides a prevent auxiliary device that handcart crank drops which characterized in that: the auxiliary device (1) is arranged on a connecting shaft (3) connected with the handcart crank (2);
the auxiliary device (1) comprises:
the body (11), the said body (11) is the rectangular box structure; the top of the body (11) is provided with a circular hole;
the spring (12), one end of the said spring (12) is fixed on the bottom surface of the body (11) inside;
and a marble (13), wherein the marble (13) is composed of two hemispheres with different diameters, and the centers of the two hemispheres are overlapped; the hemisphere with the large diameter is arranged in the body (11) and is connected with the other end of the spring (12); the hemisphere with small diameter can penetrate through a circular hole formed in the top of the body (11);
one end of the top of the connecting shaft (3) is provided with a groove in which the auxiliary device (1) can be placed.
2. The auxiliary device for preventing the handcart crank from falling off according to claim 1, is characterized in that: the top surface of the body (11) is flush with the top surface of the connecting shaft (3).
3. The auxiliary device for preventing the handcart crank from falling off according to claim 1, is characterized in that: the diameter of the hemisphere with the large diameter is larger than that of the round hole formed in the top of the body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812202.4U CN216390258U (en) | 2021-11-17 | 2021-11-17 | Auxiliary device for preventing handcart crank from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812202.4U CN216390258U (en) | 2021-11-17 | 2021-11-17 | Auxiliary device for preventing handcart crank from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216390258U true CN216390258U (en) | 2022-04-26 |
Family
ID=81253388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122812202.4U Active CN216390258U (en) | 2021-11-17 | 2021-11-17 | Auxiliary device for preventing handcart crank from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216390258U (en) |
-
2021
- 2021-11-17 CN CN202122812202.4U patent/CN216390258U/en active Active
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| GR01 | Patent grant |