CN218488228U - Eccentric hole locking device - Google Patents
Eccentric hole locking device Download PDFInfo
- Publication number
- CN218488228U CN218488228U CN202222406286.6U CN202222406286U CN218488228U CN 218488228 U CN218488228 U CN 218488228U CN 202222406286 U CN202222406286 U CN 202222406286U CN 218488228 U CN218488228 U CN 218488228U
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- locking
- inlet
- section
- eccentric hole
- rod
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Abstract
The utility model discloses an eccentric orfice locking device, characterized by: comprises a lock rod and a lock pin; the locking rod is provided with an arc-shaped locking part, the locking part is respectively an inlet end and a locking end corresponding to two ends in the extension direction of an arc line, the thickness of the side wall of the locking part facing the circle center is gradually increased from the inlet end to the locking end, the locking part is provided with a locking groove extending along the arc line direction of the locking part, one end of the locking groove corresponding to the inlet end of the locking part is provided with an inlet and an outlet, and the diameter of the inlet and the outlet is larger than the width of the locking groove; one end of the lock pin is a locking head, the diameter of the locking head is smaller than that of the inlet and the outlet and larger than the width of the locking groove, and the other end of the lock pin is a connecting end. The utility model discloses can show the convenience that promotes the dismouting.
Description
Technical Field
The utility model relates to a locking location field especially relates to an eccentric orfice locking device.
Background
At present, the equipment of a lot of small-size instruments need adopt locking structure, and this type of locking structure needs to possess the dismantlement function to in the instrument the dismouting of each part, like in the three-coordinate measuring instrument, the gauge head need carry out the dismouting.
In the traditional structure, most of locking structures adopt a screw compression mode to fix the measuring head on a mounting seat of the measuring instrument. The measuring head is fixed on the fixed end of the measuring instrument by the aid of the connecting holes, the side walls of the connecting holes are circumferentially provided with a plurality of threaded holes, each threaded hole is matched with a screw, the tail connecting end of the measuring head is inserted into the connecting hole, and then the screws are screwed down to enable the head of each screw to be tightly pressed on the connecting end of the measuring head. In the actual use process, when the measuring head is disassembled and assembled, the tail part of the measuring head can be loosened or pressed only by twisting the plurality of screw rods, so that the problem of inconvenient operation is solved; simultaneously, because the screw rod is twisted through the manual work and is moved, hardly guarantee that each screw rod is unanimous to the extrusion force of gauge head link, lead to the gauge head link at radial ascending atress inequality, the easy slope, consequently, screw up the screw rod in-process, in order to guarantee the precision of gauge head installation, need frequently adjust the degree of screwing up of screw rod, further increased the degree of difficulty of gauge head dismouting. Therefore, the structure for assembling and disassembling the measuring head in the prior art needs to be further improved.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an eccentric orfice locking device can show the convenience that promotes the dismouting.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an eccentric orfice locking device, characterized by: comprises a lock rod and a lock pin;
the locking rod is provided with an arc-shaped locking part, the locking part is respectively provided with an inlet end and a locking end corresponding to two ends in the extension direction of an arc line, the thickness of the side wall of the locking part facing the circle center is gradually increased from the inlet end to the locking end, the locking part is provided with a locking groove extending along the arc line direction of the locking part, one end of the locking groove corresponding to the inlet end of the locking part is provided with an inlet and an outlet, and the diameter of the inlet and the outlet is larger than the width of the locking groove;
one end of the lock pin is a locking head, the diameter of the locking head is smaller than that of the inlet and the outlet and larger than the width of the locking groove, and the other end of the lock pin is a connecting end.
Preferably, the locking part is formed by an eccentric hole formed at the end part of the lock rod.
Preferably, the locking rod comprises a locking section and an extension section which are axially connected, and the locking part is positioned on the locking section.
Preferably, the locking section is inserted with the extension section, and the locking section is in circumferential limit fit with the extension section.
Preferably, a rotation connection part which facilitates rotation is arranged at one end of the extension section, which is opposite to the locking section.
Preferably, the locking head is of a spherical structure, and the connecting end is a threaded end.
The utility model has the advantages that: in the dismounting process, only the lock rod needs to rotate for a half circle, and the dismounting device has the characteristic of high dismounting efficiency.
Drawings
FIG. 1 is a schematic view of an eccentric hole locking device provided in the present embodiment;
FIG. 2 is a schematic view of the eccentric hole locking device according to another perspective of the present embodiment;
FIG. 3 is a sectional view of the locking device of the present embodiment in the assembled state and in the disassembled state;
fig. 4 is a schematic view of the lock rod being positioned by the positioning bolt provided in this embodiment.
Detailed Description
The eccentric hole locking device of the present invention will be further described with reference to fig. 1 to 4.
An eccentric hole locking device is characterized in that: comprising a locking bar 2 and a locking pin 1.
The locking rod 2 is provided with an arc-shaped locking part 221, the locking part 221 is provided with an inlet end 2211 and a locking end 2212 which correspond to two ends in the extension direction of an arc respectively, the thickness of the side wall of the locking part 221 facing the center of a circle is gradually increased from the inlet end to the locking end, the locking part 221 is provided with a locking groove 222 extending along the arc direction of the locking part 221, one end of the locking groove 222 corresponding to the inlet end of the locking part 221 is provided with an inlet and outlet 223, and the diameter of the inlet and outlet 223 is larger than the width of the locking groove 222; one end of the lock pin 1 is a locking head 11, the diameter of the locking head 11 is smaller than the diameter of the inlet and outlet 223 and larger than the width of the locking groove 222, and the other end of the lock pin 1 is a connecting end 12.
Specifically, the locking portion 221 is formed by forming an eccentric hole 225 at an end of the locking rod 2. That is, after the end of the lock rod 2 is provided with the eccentric hole 225, two symmetric quadrants 26/27 are formed on the rod wall of the lock rod 2 corresponding to the eccentric hole 225, the thickness of the rod wall of each quadrant gradually changes, and the locking portion 221 is one of the quadrants.
As another embodiment of the middle locking portion 221 of the present invention, the locking portion 221 is an arc plate located on the locking rod 2, and the structure of the arc plate is the same as that of one of the quadrants in the first embodiment.
The locking rod 2 comprises a locking section 22 and an extension section 21 which are axially connected, and the locking part 221 is positioned on the locking section 22. This locking lever 2 structure can be convenient for locking section 22's unified production, then chooses extension section 21 of phase-match length for use according to specific use scene again to in the installation of locking lever 2 in different parts, promote the utility model discloses flexibility in the use.
The locking section 22 is inserted into the extension section 21, and the locking section 22 is in circumferential limit fit with the extension section 21. That is, the opposite end of the locking section 22 and the extension section 21 is respectively provided with a clamping groove 224 and a clamping block 211, and the clamping block 211 is clamped into the clamping groove 224 to realize the circumferential limit matching connection between the locking section 22 and the extension section 21. The locking portion 221 is located at an end of the locking segment 22 opposite to the extension segment 21.
At the end of the extension piece 21 facing away from the locking piece 22, a rotation connection is provided to facilitate rotation. The rotary connection part can be a hexagonal groove or a straight groove 212 formed on the end surface of the extension section 21, or can be a holding handle formed or connected on the end surface of the extension section 21. The embodiment uses a straight slot 212 for easy tool attachment and rotation.
The locking head 11 is of a spherical structure, the connecting end 12 is a threaded end, and the threaded end can be directly connected with a dismounting end in a threaded mode.
Based on the structure, when in specific use, the lock rod 2 is installed in the installation hole of the fixed end 4, and the lock pin 1 is connected with the dismounting end 3 through the connecting end 12; during installation, the locking head part 11 of the lock pin 1 extends into the inlet and outlet 223, then the lock rod 2 is rotated, the locking groove 222 on the locking part 221 is clamped on the locking head part 11, and in the rotating process of the lock rod 2, the wall thickness of the arc-shaped locking part 221 is gradually increased, so that the lock pin 1 and the dismounting end 3 can be gradually pulled to move towards the lock rod 2 until the lock pin 1 is tensioned and fixed; when the locking rod 2 is rotated reversely to enable the locking head 11 to be in butt joint with the inlet and outlet 223, the locking head 11 can be moved out, and the dismounting of the dismounting end 3 is achieved.
In the above process, in order to further improve the stability of the locking rod 2, i.e. prevent the locking rod 2 from rotating reversely in the locking state, a torsion spring may be disposed between the locking rod 2 and the mounting hole of the fixed end 4, so that the locking head 11 is held at one end of the locking groove 222 facing away from the inlet and outlet 223; or the positioning bolt 5 is screwed into the side wall of the mounting hole of the fixed end 4, so that the head of the positioning bolt 5 is pressed on the lock rod 2 to prevent the lock rod 2 from rotating accidentally.
When concrete implementation, stiff end 4 and dismouting end 3 can be for the afterbody connecting seat of the gauge head mount pad of three-coordinate measuring apparatu and gauge head, also can be for the mount pad and the connecting seat of other small-size instruments.
In the installation process, the measuring head is only subjected to axial tension, so that the measuring head is not easy to incline during installation, and the device has the characteristics of high installation precision and convenience, and meanwhile, the measuring head can be locked and installed only by rotating the lock rod 2 by about 180 degrees, and the device has the characteristic of high assembly and disassembly efficiency; the specific rotation angle of the lock lever is determined according to the extension length of the locking groove and the tension force on the lock pin.
Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the orientation or positional relationship in the present invention are used only for exemplary illustration and are not to be construed as limiting the present patent, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances with reference to the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly in the present disclosure and encompass, for example, either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An eccentric hole locking device is characterized in that: comprises a lock rod and a lock pin;
the locking rod is provided with an arc-shaped locking part, the locking part is respectively provided with an inlet end and a locking end corresponding to two ends in the extension direction of an arc line, the thickness of the side wall of the locking part facing the circle center is gradually increased from the inlet end to the locking end, the locking part is provided with a locking groove extending along the arc line direction of the locking part, one end of the locking groove corresponding to the inlet end of the locking part is provided with an inlet and an outlet, and the diameter of the inlet and the outlet is larger than the width of the locking groove;
one end of the lock pin is a locking head, the diameter of the locking head is smaller than that of the inlet and the outlet and larger than the width of the locking groove, and the other end of the lock pin is a connecting end.
2. An eccentric hole locking device according to claim 1, characterized in that: the locking part is formed by arranging an eccentric hole at the end part of the lock rod.
3. An eccentric hole locking device according to claim 1, characterized in that: the locking rod comprises a locking section and an extension section which are axially connected, and the locking part is positioned on the locking section.
4. An eccentric hole locking device according to claim 3, characterized in that: the locking section is connected with the extension section in an inserting mode, and the locking section is in circumferential limiting fit with the extension section.
5. An eccentric hole locking device according to claim 4, characterized in that: and one end of the extension section, which is back to the locking section, is provided with a rotary connecting part which is convenient to rotate.
6. An eccentric hole locking device according to claim 1, characterized in that: the locking head is of a spherical structure, and the connecting end is a threaded end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222406286.6U CN218488228U (en) | 2022-09-09 | 2022-09-09 | Eccentric hole locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222406286.6U CN218488228U (en) | 2022-09-09 | 2022-09-09 | Eccentric hole locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218488228U true CN218488228U (en) | 2023-02-17 |
Family
ID=85190386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222406286.6U Active CN218488228U (en) | 2022-09-09 | 2022-09-09 | Eccentric hole locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218488228U (en) |
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2022
- 2022-09-09 CN CN202222406286.6U patent/CN218488228U/en active Active
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