Stepped symmetrical pressing lock
By using a stepped symmetrical clamping lock with a synchronous rotating locking mechanism and a rotating shaft limiting design, the problem of locking the guide posts in opposite directions is solved, achieving precise and reliable locking of the guide posts and improving operational efficiency and stability.
Patent Information
- Application Number
- CN202520488368.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing locking methods make it difficult to achieve simultaneous locking of a pair of guide posts facing each other. Furthermore, traditional locking devices are cumbersome to operate, have uneven force distribution on both sides, low self-locking reliability, and complex structures.
The stepped symmetrical clamping lock adopts a synchronous rotation locking mechanism and a stepped engagement design, combined with a rotating shaft limit and torsion spring automatic reset structure to achieve symmetrical locking of the guide posts. The locking accuracy and stability are ensured by the limit post and arc groove guidance.
It achieves precise and reliable locking of the guide post, improves operational efficiency and stability, reduces manual intervention, and is suitable for high-frequency locking requirements under complex working conditions.
Smart Images
Figure CN223881484U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of lockset, specifically relates to a ladder symmetry compression lock. BACKGROUND
[0002] In the field of mechanical connection and fixation, the locking connection of guide columns is a common and key technical operation. In many mechanical equipment and industrial production scenes, it is often necessary to stably, reliably and conveniently lock a pair of guide columns to ensure the normal operation of the equipment and the stability of the structure.
[0003] At present, in the related technology, the locking methods for guide columns mainly include the following. One is to adopt the traditional bolt and nut connection method, that is, to open a threaded hole on the guide column, and then to use a bolt and nut to fixedly connect the guide column with other components. The principle of this method is to use the pre-tightening force generated by the thread cooperation between the bolt and the nut to tightly fix the guide column at the corresponding position. Another common method is to use a buckle structure. The buckle usually has a certain elasticity, and the elastic part of the buckle is clamped into the clamping groove on the guide column to lock the guide column. This method uses the elastic deformation and restoring force of the buckle to maintain the locking state of the guide column.
[0004] The existing locking methods are mostly difficult to realize the simultaneous locking of a pair of guide columns in opposite directions, and cannot well adapt to some special installation and use requirements. Therefore, it is of great practical significance to develop a locking device that can conveniently, stably and reliably lock a pair of guide columns in opposite directions at the same time. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at overcoming the above defects, and provides a ladder symmetry compression lock, which realizes the symmetrical locking of a pair of guide columns in opposite directions through the synchronous rotation of the locking mechanism and the ladder-shaped clamping design, so as to solve the technical problems of the traditional guide column locking device, such as complicated operation, uneven force on both sides, low self-locking reliability and complex structure. At the same time, through the rotation shaft limiting and torsional spring automatic reset structure, the locking is accurately triggered to rotate and stably limited when the guide column is inserted, and the operation efficiency and locking stability are further improved.
[0006] The utility model provides a ladder symmetry compression lock includes A board, B board, set up in the top of A board, and is connected with A board through a set of bolt, locking assembly, set up between A board and B board, the locking assembly includes first lock catch and a pair of second lock catch, wherein, the centre of A board is provided with first rotation axis and a pair of second rotation axis far from the centre, first rotation axis with second rotation axis all extend to the top of B board, the centre of first lock catch is sleeved on first rotation axis, and can rotate along first rotation axis, second lock catch is sleeved on second rotation axis, and can rotate along second rotation axis, the position of A board close to second rotation axis still is provided with a pair of first gap, is provided with a pair of second gap on B board, first gap with second gap is set up in the upper and lower correspondence, a pair of second lock catch, second rotation axis, first gap and second gap are centrally symmetric with first rotation axis as the centre, when a pair of guide post is from the both sides of ladder symmetry compression lock and is opposite along corresponding first gap and second gap and inserts, second lock catch rotates along with it, when guide post is completely inserted, second lock catch rotates to the position, rotates first lock catch again, and first lock catch rotates to the position, locks a pair of second lock catch simultaneously.
[0007] Further, the second lock catch of the stepped symmetrical compression lock is provided with a third gap and a first limiting column. The first limiting column extends out of the B plate. Before the guide column is inserted, the third gap corresponds to the first gap and the second gap. After the guide column is inserted along the first gap and the second gap, the third gap rotates with the insertion of the guide column. The second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. The third gap, the first gap and the second gap are spatially staggered to lock the guide column. The third gap on the second lock catch corresponds to the first gap and the second gap before the guide column is inserted. This provides accurate positioning and guidance for the insertion of the guide column, so that the guide column can be accurately inserted along the predetermined trajectory, improving the accuracy and convenience of the installation operation, reducing the risk of installation failure or damage to the equipment due to inaccurate positioning. When the guide column is completely inserted, the third gap, the first gap and the second gap are spatially staggered to form a spatially staggered locking structure, which restricts the guide column from multiple dimensions, greatly enhancing the locking effect of the guide column. The first limiting column of the second lock catch extends out of the B plate, and the second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. This design provides additional limiting and anti-dropping protection. Through mechanical limiting, the second lock catch is prevented from being accidentally reversed, thereby stabilizing the locking state of the guide column and enhancing the reliability of the entire compression lock under complex working conditions.
[0008] Further, the second lock catch of the stepped symmetrical compression lock is provided with a third gap and a first limiting column. The first limiting column extends out of the B plate. Before the guide column is inserted, the third gap corresponds to the first gap and the second gap. After the guide column is inserted along the first gap and the second gap, the third gap rotates with the insertion of the guide column. The second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. The third gap, the first gap and the second gap are spatially staggered to lock the guide column. The third gap on the second lock catch corresponds to the first gap and the second gap before the guide column is inserted. This provides accurate positioning and guidance for the insertion of the guide column, so that the guide column can be accurately inserted along the predetermined trajectory, improving the accuracy and convenience of the installation operation, reducing the risk of installation failure or damage to the equipment due to inaccurate positioning. When the guide column is completely inserted, the third gap, the first gap and the second gap are spatially staggered to form a spatially staggered locking structure, which restricts the guide column from multiple dimensions, greatly enhancing the locking effect of the guide column. The first limiting column of the second lock catch extends out of the B plate, and the second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. This design provides additional limiting and anti-dropping protection. Through mechanical limiting, the second lock catch is prevented from being accidentally reversed, thereby stabilizing the locking state of the guide column and enhancing the reliability of the entire compression lock under complex working conditions.
[0009] Further, the second lock catch of the stepped symmetrical compression lock is provided with a third gap and a first limiting column. The first limiting column extends out of the B plate. Before the guide column is inserted, the third gap corresponds to the first gap and the second gap. After the guide column is inserted along the first gap and the second gap, the third gap rotates with the insertion of the guide column. The second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. The third gap, the first gap and the second gap are spatially staggered to lock the guide column. The third gap on the second lock catch corresponds to the first gap and the second gap before the guide column is inserted. This provides accurate positioning and guidance for the insertion of the guide column, so that the guide column can be accurately inserted along the predetermined trajectory, improving the accuracy and convenience of the installation operation, reducing the risk of installation failure or damage to the equipment due to inaccurate positioning. When the guide column is completely inserted, the third gap, the first gap and the second gap are spatially staggered to form a spatially staggered locking structure, which restricts the guide column from multiple dimensions, greatly enhancing the locking effect of the guide column. The first limiting column of the second lock catch extends out of the B plate, and the second gap extends inwardly to form a fourth gap. When the guide column is completely inserted, the first limiting column is rotated and clamped into the fourth gap. This design provides additional limiting and anti-dropping protection. Through mechanical limiting, the second lock catch is prevented from being accidentally reversed, thereby stabilizing the locking state of the guide column and enhancing the reliability of the entire compression lock under complex working conditions.
[0010] Further, the step symmetric compression lock in the application, the B plate is provided with an arc groove along the center of the first rotating shaft, and a pair of third limiting columns are symmetrically provided on the first lock catch, the third limiting columns extend out of the B plate from the arc groove, and rotation paths of the third limiting columns are limited at two ends of the arc groove.The arc groove provided on the B plate along the center of the first rotating shaft cooperates with the third limiting columns on the first lock catch, so that the rotation range of the first lock catch can be effectively limited.The third limiting columns move in the arc groove, and the rotation paths thereof are limited at two ends of the arc groove, so that the first lock catch can only rotate within a specified angle range, the locking failure of the second lock catch or the damage of other components caused by excessive rotation is avoided, the accuracy and stability of the compression lock operation are ensured, and since the arc groove and the third limiting columns are symmetrically arranged along the center of the first rotating shaft, the symmetric structure provides clear guidance for an operator when the first lock catch is operated, so that the operator can more easily maintain the symmetry of the operation when rotating the first lock catch to perform the locking or unlocking operation, the clamping force of the first lock catch on the two second lock catches is uniform, and therefore, a more reliable symmetric compression effect is achieved.
[0011] Further, the step symmetric compression lock in the application, the first rotating shaft is further sleeved with a second torsional spring, and two extension parts of the second torsional spring abut against a pair of third limiting columns.The second torsional spring is sleeved on the first rotating shaft, and the two extension parts abut against the pair of third limiting columns, when the first lock catch is rotated to be unlocked, the elastic potential energy of the second torsional spring is released, the third limiting columns are pushed, and then the first lock catch is automatically reset to the initial position. This function reduces the manual operation steps and improves the convenience of operation, and prepares for the next use.
[0012] The above technical scheme can be seen, the utility model has the following beneficial effects:
[0013] 1. The step symmetric compression lock has the following beneficial effects: the synchronous rotating lock catch mechanism and the center symmetric layout design are used, the opposite symmetric locking of a pair of guide columns is realized, the uniform force bearing and the reliable self-locking of the two guide columns are ensured, the step-by-step triggering of the linkage of the first lock catch and the second lock catch after the guide column is inserted, the accurate positioning of the step-shaped clamping structure, the asynchronization or deviation of the traditional locking device caused by the step-by-step operation are avoided, and the locking precision and stability are significantly improved.
[0014] 2. The stepped symmetrical clamping lock of this utility model simplifies the operation process and enhances structural adaptability through the coordinated design of rotating shaft limiting, torsion spring reset, and arc groove guidance. The third and fourth notches of the second latch intersect to form a multi-dimensional locking mechanism, which, combined with the mechanical anti-disengagement locking of the first limiting post, effectively prevents the guide post from accidentally loosening; while the third limiting post of the first latch, in conjunction with the arc groove, limits the rotation range and ensures the controllability of the latch action. At the same time, the automatic reset function of the torsion spring reduces manual intervention, enabling the device to quickly and repeatedly lock, making it suitable for guide post fixing needs under high-frequency or complex working conditions. Attached Figure Description
[0015] Fig. 1 This is a schematic diagram of a stepped symmetrical compression lock structure of the present invention (locked state);
[0016] Fig. 2 This is an exploded view (locked state) of a stepped symmetrical compression lock structure according to the present invention.
[0017] Fig. 3 This is an exploded view of a stepped symmetrical compression lock structure of this utility model (in the released state).
[0018] Explanation of reference numerals in the accompanying drawings: 1-A plate, 11-first pivot, 12-second pivot, 13-first notch, 14-second limiting post;
[0019] 2-B plate, 21-second notch, 211-fourth notch, 22-arc groove;
[0020] 3-Locking assembly, 31-First latch, 311-Third limiting post, 32-Second latch, 321-Third notch, 322-First limiting post, 33-Torsion spring, 34-Second torsion spring;
[0021] 4- Bolts. Detailed Implementation
[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0023] Example 1
[0024] like Figs. 1 to 3 As shown, this embodiment provides a stepped symmetrical clamping lock, designed to achieve convenient, stable, and reliable simultaneous locking of a pair of guide posts in opposite directions. The device includes plate A 1, plate B 2, and locking assembly 3.
[0025] Plate A1 is located at the bottom and has a first pivot 11 at its center, and a pair of second pivots 12 are symmetrically arranged at a position away from the center.
[0026] B plate 2 is fixed above A plate 1 by a set of bolts 4. A pair of second notches 21 are provided on B plate 2 corresponding to the first notch 13 and the second notch 21 on A plate 1.
[0027] The locking assembly 3 is arranged between A plate 1 and B plate 2, mainly composed of a first lock 31 and a pair of second locks 32. The first lock 31 is sleeved on the first shaft 11, and the pair of second locks 32 are respectively sleeved on the second shaft 12, which can rotate along the respective shafts.
[0028] When the guide post locking operation is performed:
[0029] A pair of guide posts are inserted from both sides, first through the first notch 13 of A plate 1 and the second notch 21 of B plate 2.
[0030] With the insertion of the guide post, the second lock 32 is pushed to rotate, so that the third notch 321 on it rotates, until the guide post is completely inserted and the second lock 32 is rotated in place. At this time, the first limiting column 322 on the second lock 32 is clamped into the fourth notch 211 of B plate 2, ensuring the stable locking of the guide post.
[0031] Finally, rotate the first lock 31 to lock the second lock 32 on both sides synchronously through the stepped engagement structure, and complete the entire locking process.
[0032] In addition, in order to enhance the operation efficiency and stability of the locking device:
[0033] A torsion spring 33 is arranged on the second shaft 12, and the two extensions of the torsion spring 33 abut between the first limiting column 322 and the second limiting column 14, providing the second lock 32 with automatic reset capability.
[0034] The first lock 31 is provided with a third limiting column 311, which cooperates with the arc groove 22 on B plate 2 to limit the rotation range of the first lock 31.
[0035] The first shaft 11 is also sleeved with a second torsion spring 34, and the two extensions of the second torsion spring 34 abut against a pair of third limiting columns 311 to ensure that the first lock 31 can automatically reset to the initial position after unlocking, facilitating the next use.
[0036] This stepped symmetrical compression lock design cleverly uses the synchronous rotating lock mechanism and central symmetrical layout to realize precise and reliable locking of the guide post, and is suitable for various scenes that require fast and repeated locking operations.
[0037] The above examples are exemplary, and the purpose is to illustrate the technical concept and characteristics of the utility model, so that the personnel familiar with this field can understand the content of the utility model and implement it accordingly, and the protection scope of the utility model cannot be limited thereby. Any equivalent change or modification according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.
Claims
1. A ladder symmetrical compression lock for locking a pair of guide posts simultaneously from both sides, characterized in that: A plate (1); B plate (2) is arranged above the A plate (1) and is connected with the A plate (1) through a set of bolts (4); a locking assembly (3) is arranged between the A plate (1) and the B plate (2), the locking assembly (3) comprises a first lock (31) and a pair of second locks (32), wherein the center of the A plate (1) is provided with a first rotating shaft (11) and a pair of second rotating shafts (12) away from the center, the first rotating shaft (11) and the second rotating shaft (12) both extend above the B plate (2); the center of the first lock (31) is sleeved on the first rotating shaft (11) and can rotate along the first rotating shaft (11); the second lock (32) is sleeved on the second rotating shaft (12) and can rotate along the second rotating shaft (12), the A plate (1) is further provided with a pair of first notches (13) near the second rotating shaft (12), the B plate (2) is provided with a pair of second notches (21), the first notches (13) and the second notches (21) are arranged in correspondence with each other, a pair of the second locks (32), the second rotating shaft (12), the first notch (13) and the second notch (21) are arranged in central symmetry with the first rotating shaft (11) as the center, when a pair of the guide posts are inserted from both sides of the ladder symmetrical compression lock along the corresponding first notches (13) and second notches (21), the second locks (32) rotate accordingly, when the guide posts are completely inserted, the second locks (32) are rotated in place, the first lock (31) is further rotated, the first lock (31) is rotated in place, and a pair of the second locks (32) are locked simultaneously.
2. The ladder symmetrical compression lock according to claim 1, characterized in that: the second lock (32) is further provided with a third notch (321) and a first limiting column (322), the first limiting column (322) extends out of the B plate (2), before the guide posts are inserted, the third notch (321) corresponds to the first notch (13) and the second notch (21), after the guide posts are inserted along the first notch (13) and the second notch (21), the third notch (321) rotates with the insertion of the guide posts, the second notch (21) extends inwardly to form a fourth notch (211), when the guide posts are completely inserted, the first limiting column (322) is rotated and clamped into the fourth notch (211), the third notch (321) and the first notch (13) and the second notch (21) are spatially crossed, and the guide posts are locked.
3. The ladder symmetrical compression lock according to claim 2, characterized in that: the A plate (1) is further provided with a pair of second limiting columns (14), the second limiting columns (14) correspond to the second rotating shaft (12) and extend out of the B plate (2), a torsional spring (33) is sleeved on the second rotating shaft (12), and two extension parts of the torsional spring (33) abut between the first limiting column (322) and the second limiting column (14). 4. The stepped symmetrical compression lock according to claim 1, wherein: the engaging portion of the first lock catch (31) and the two second lock catches (32) are stepped.
5. The stepped symmetrical compression lock according to claim 4, wherein: the B plate (2) is centrally provided with an arc-shaped slot (22) along the first rotating shaft (11), a pair of third limiting posts (311) are symmetrically provided on the first lock catch (31), the third limiting posts (311) extend out of the B plate (2) from the arc-shaped slot (22), and the rotation range of the third limiting posts (311) is limited by the two ends of the arc-shaped slot (22).
6. The stepped symmetrical compression lock according to claim 5, wherein: the first rotating shaft (11) is further sleeved with a second torsion spring (34), and the two extending portions of the second torsion spring (34) abut against the pair of third limiting posts (311).