CN211599163U - Screw type locking mechanism - Google Patents
Screw type locking mechanism Download PDFInfo
- Publication number
- CN211599163U CN211599163U CN201922368637.7U CN201922368637U CN211599163U CN 211599163 U CN211599163 U CN 211599163U CN 201922368637 U CN201922368637 U CN 201922368637U CN 211599163 U CN211599163 U CN 211599163U
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- China
- Prior art keywords
- lock
- sleeve
- rod
- helical gear
- locking mechanism
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of hardware accessories, in particular to a screw type locking mechanism, which comprises a lock base, a lock rod arranged on the lock base in a sliding way and an adjusting screw rod arranged on the lock base in a rotating way, wherein one end of the lock rod is provided with a first helical gear; and a lock head is arranged at one end of the lock rod, which is far away from the first helical gear. The utility model discloses a structure of helical gear, its simple structure is compact, moves reliable and stable, and removes the precision height to in carry out the flexible regulation of high accuracy to the lock lever, thereby make the tapered end even have great concatenation error condition also can reach and lock accurately in two display screen modules. The utility model has the advantages of compact structure, the practicality is strong, and easily operation.
Description
Technical Field
The utility model belongs to the technical field of hardware fitting technique and specifically relates to indicate a screw locking mechanism.
Background
The LED display screen is a novel flat panel display device appearing in the 90 s, and gradually becomes a unique display in the public multimedia display field due to clear picture, high brightness and bright color. The application of the LED display screen is also very wide, such as lamp box advertisement, outdoor advertising board, indoor screen display and the like.
At present, some large-scale LED display screens are formed by splicing a plurality of display screen modules, and two display screen modules are locked by a locking mechanism, namely, a locking rod is installed on one side, and a locking structure for locking a lock head of the locking rod is installed on the other side. The lock rods on the market are movably arranged in the lock seats, and the lock heads are fixedly arranged on the lock rods or are integrally formed with the transmission lock rods; the lock seat is fixedly arranged on the display screen module, so that the installation precision requirement on the locking structure of the display screen module on the other side is higher during installation, otherwise, the lock head cannot be pushed to the locking point position of the locking structure, and the locking between the two display screen modules is failed; in addition, because the extension length of the lock head is fixed, the gap between the display screen module provided with the locking structure and the display screen module provided with the lock seat can not be adjusted, and sometimes an error occurs when the length of the lock rod is calculated, so that the lock head of the lock rod is not aligned with the lock hole position of the locking structure, the lock cannot be locked, and the lock head can impact the display screen module to damage the display screen module, therefore, if the length of the lock rod is fixed, in case of an error, the lock rod can only be scrapped or left for use, and waste is caused.
Disclosure of Invention
An object of the utility model is to provide a simple structure is compact to prior art's not enough, and the flexible length of locking lever is adjustable, and screw locking mechanism that flexible precision is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a screw locking mechanism, it includes lock seat, slides and sets up locking lever on the lock seat and rotates the adjusting screw who sets up in the lock seat, one end of locking lever is provided with first helical gear, the adjusting screw is provided with the second helical gear with first helical gear meshing, the adjusting screw is via the intermeshing of second helical gear, first helical gear and locking lever spiro union; and a lock head is arranged at one end of the lock rod, which is far away from the first helical gear.
The lock seat comprises a first sleeve for accommodating the lock rod, a second sleeve for accommodating the adjusting screw rod and two fixed wing plates which are respectively arranged on two sides of the first sleeve, the second sleeve penetrates through one of the fixed wing plates and interferes with one side of the first sleeve, and the axis of the second sleeve is perpendicular to the axis of the first sleeve; and a transmission through hole which is communicated with each other is formed at the joint of the first sleeve and the second sleeve.
Furthermore, one side of each of the two fixing wing plates is convexly provided with a mounting column, and a threaded hole is formed in each mounting column.
Furthermore, one end of the second sleeve is provided with a first snap ring which is integrally formed, and the other end of the second sleeve is provided with a detachable second snap ring.
The adjusting screw comprises a shaft rod which is rotatably arranged in a second sleeve, and the second bevel gear is arranged around the central axis of the shaft rod; and inner hexagonal blind holes are formed in the two ends of the shaft lever.
Further, the second bevel gear and the shaft rod are of an integrated structure.
Wherein, an annular groove is concavely arranged between the lock head and the lock rod.
The utility model has the advantages that:
in practical application, the lock base is used for installing and fixing the lock rod on the display screen module, when the lock rod is stretched, only the adjusting screw rod needs to be rotated, the rotated adjusting screw rod drives the second helical gear to rotate, and the rotated second helical gear drives the first helical gear to rotate; under the mutual meshing action of the first helical gear and the second helical gear, the lock rod can drive the lock head to stretch on the lock seat, so that the stretching length of the lock rod is adjusted; meanwhile, the structure of the helical gear is adopted, the structure is simple and compact, the operation is stable and reliable, the moving precision is high, so that the high-precision telescopic adjustment of the lock rod is convenient, and the lock head can be accurately locked even if the two display screen modules have larger splicing error. The utility model has the advantages of compact structure, the practicality is strong, and easily operation.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic structural view of the lock base of the present invention;
FIG. 4 is a schematic structural view of the lock rod and the lock head of the present invention;
fig. 5 is a schematic structural diagram of the adjusting screw of the present invention.
Description of the reference numerals
1. A lock seat; 2. a lock lever; 3. a lock head; 4. adjusting the screw rod; 11. a first sleeve; 12. a second sleeve; 13. a fixed wing plate; 14. a drive through hole; 121. a first snap ring; 122. a second snap ring; 131. mounting a column; 132. a threaded hole; 21. a first helical gear; 22. an annular groove; 41. A second helical gear; 42. a shaft lever; 43. and an inner hexagonal blind hole.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention provides a screw type locking mechanism, which includes a lock base 1, a lock rod 2 slidably disposed on the lock base 1, and an adjusting screw 4 rotatably disposed on the lock base 1, wherein one end of the lock rod 2 is provided with a first helical gear 21, the adjusting screw 4 is provided with a second helical gear 41 engaged with the first helical gear 21, and the adjusting screw 4 is screwed with the lock rod 2 via the mutual engagement of the second helical gear 41 and the first helical gear 21; and a lock head 3 is arranged at one end of the lock rod 2 far away from the first bevel gear 21.
In practical application, the lock base 1 is used for installing and fixing the lock rod 2 on the display screen module, when the lock rod 2 is stretched and contracted, only the adjusting screw rod 4 needs to be rotated, the rotated adjusting screw rod 4 drives the second bevel gear 41 to rotate, and the rotated second bevel gear 41 drives the first bevel gear 21 to rotate; under the mutual meshing action of the first bevel gear 21 and the second bevel gear 41, the lock rod 2 can drive the lock head 3 on the lock base 1 to stretch, so that the stretching length of the lock rod 2 is adjusted; meanwhile, the structure of the helical gear is adopted, the structure is simple and compact, the operation is stable and reliable, the moving precision is high, so that the locking rod 2 can be conveniently adjusted in a high-precision telescopic mode, and the locking head 3 can be accurately locked even if the two display screen modules have large splicing errors. The utility model has the advantages of compact structure, the practicality is strong, and easily operation.
In the technical scheme, the lock base 1 comprises a first sleeve 11 for accommodating the lock rod 2, a second sleeve 12 for accommodating the adjusting screw rod 4 and two fixed wing plates 13 respectively arranged at two sides of the first sleeve 11, the second sleeve 12 penetrates through one of the fixed wing plates 13 and interferes with one side of the first sleeve 11, and the axis of the second sleeve 12 is perpendicular to the axis of the first sleeve 11; the joint of the first sleeve 11 and the second sleeve 12 is provided with a transmission through hole 14 which penetrates each other. The first sleeve 11 and the second sleeve 12 are designed to facilitate the installation and fixation of the lock rod 2 and the adjusting screw rod 4 and improve the working stability of the lock rod 2 and the adjusting screw rod 4; the axis of the second sleeve 12 is perpendicular to the axis of the first sleeve 11, so that the lock rod 2 and the adjusting screw rod 4 are perpendicular to each other, and the engagement between the first bevel gear 21 and the second bevel gear 41 is more accurate and stable, so as to improve the movement stability and the adjustment accuracy of the lock rod 2. When the lock lever 2 and the adjustment screw 4 are fitted into the first sleeve 11 and the second sleeve 12, respectively, the first helical gear 21 and the second helical gear 41 can be engaged with each other through the transmission through hole 14.
In this technical solution, two one side of the fixed wing plate 13 is convexly provided with an installation column 131, a threaded hole 132 is provided in the installation column 131, and the two fixed wing plates 13 are arranged in a coplanar manner. The lock seat 1 can adopt bolted connection fixed with external display screen module via the screw hole 132 of erection column 131, will from this the utility model discloses install on the display screen module.
In this technical solution, one end of the second sleeve 12 is provided with a first snap ring 121 formed integrally, and the other end of the second sleeve 12 is provided with a detachable second snap ring 122. In practical applications, the first snap ring 121 is used to engage with one end of the shaft 42 of the adjusting screw 4, and the second snap ring 122 is used to engage with the other end of the shaft 42 of the adjusting screw 4, so that the adjusting screw 4 is stably and rotatably disposed in the second sleeve 12. The detachable design of the second snap ring 122 facilitates the disassembly, assembly and maintenance of the adjusting screw rod 4.
In the present technical solution, the adjusting screw rod 4 includes a shaft rod 42 rotatably disposed in the second sleeve 12, and the second bevel gear 41 is disposed around a central axis of the shaft rod 42; and the two ends of the shaft rod 42 are provided with inner hexagonal blind holes 43. Specifically, the second bevel gear 41 and the shaft 42 are integrally formed, and the structure is designed to facilitate the manufacture of the adjusting screw rod 4 and reduce the cost. The design of hexagonal socket hole 43 to the operator adopts the hexagonal key to rotate adjusting screw 4, and this mode easy operation is convenient.
In the technical scheme, an annular groove 22 is concavely arranged between the lock head 3 and the lock rod 2, and the annular groove 22 is convenient for an external locking structure to lock the lock head 3.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (7)
1. A screw locking mechanism is characterized in that: the lock comprises a lock base, a lock rod arranged on the lock base in a sliding mode and an adjusting screw rod arranged on the lock base in a rotating mode, wherein a first helical gear is arranged at one end of the lock rod, a second helical gear meshed with the first helical gear is arranged on the adjusting screw rod, and the adjusting screw rod is in threaded connection with the lock rod through mutual meshing of the second helical gear and the first helical gear; and a lock head is arranged at one end of the lock rod, which is far away from the first helical gear.
2. The screw-type locking mechanism of claim 1, wherein: the lock seat comprises a first sleeve for accommodating the lock rod, a second sleeve for accommodating the adjusting screw rod and two fixed wing plates which are respectively arranged on two sides of the first sleeve, the second sleeve penetrates through one of the fixed wing plates and interferes with one side of the first sleeve, and the axis of the second sleeve is perpendicular to the axis of the first sleeve; and a transmission through hole which is communicated with each other is formed at the joint of the first sleeve and the second sleeve.
3. The screw-type locking mechanism of claim 2, wherein: and one side of each of the two fixed wing plates is convexly provided with a mounting column, and a threaded hole is formed in each mounting column.
4. The screw-type locking mechanism of claim 2, wherein: one end of the second sleeve is provided with a first snap ring which is integrally formed, and the other end of the second sleeve is provided with a detachable second snap ring.
5. The screw-type locking mechanism of claim 1, wherein: the adjusting screw comprises a shaft rod which is rotatably arranged in the second sleeve, and the second bevel gear is arranged around the central axis of the shaft rod; and inner hexagonal blind holes are formed in the two ends of the shaft lever.
6. The screw-type locking mechanism of claim 5, wherein: the second bevel gear and the shaft rod are of an integrated structure.
7. The screw-type locking mechanism of claim 1, wherein: an annular groove is concavely arranged between the lock head and the lock rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368637.7U CN211599163U (en) | 2019-12-24 | 2019-12-24 | Screw type locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922368637.7U CN211599163U (en) | 2019-12-24 | 2019-12-24 | Screw type locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211599163U true CN211599163U (en) | 2020-09-29 |
Family
ID=72595502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922368637.7U Expired - Fee Related CN211599163U (en) | 2019-12-24 | 2019-12-24 | Screw type locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211599163U (en) |
-
2019
- 2019-12-24 CN CN201922368637.7U patent/CN211599163U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 |