Lock body structure of pressing lock capable of reducing shaking of push rod

Abstract

The utility model discloses a lock body structure of a pressing lock capable of reducing shaking of a push rod. The lock body structure comprises a lock shell, the push rod, a spring, a spring bolt and a locking piece. A guide column is arranged in the lock shell, and a spring bolt opening is formed in one side of the lock shell. One end of the push rod is provided with a guide hole in the axial direction, the guide hole is arranged outside the guide column in a sliding fit mode, and the other end of the push rod extends out of the lock shell. The spring is arranged in the guide hole in the axial direction and supported between the guide column and the push rod. The spring bolt is arranged at the spring bolt opening, and the push rod is matched with the spring bolt and used for driving the spring bolt to stretch out of or retract into the spring bolt opening. The locking piece is arranged in the lock shell and used for locking or releasing the push rod. According to the utility model, the problems of blocking and abnormal sound in the unlocking and locking processes are solved.

Description

Technical Field

[0001] This utility model relates to the field of push-button lock technology, specifically to a lock body structure for a push-button lock that reduces push rod wobbling. Background Technology

[0002] Push-button locks, a common type of lock widely used in cabinet door applications, are favored by users for their convenient operation. In daily use, to lock the cabinet door, simply press the push button on the lock. The pressure causes the push rod inside the lock body to compress the connected spring. Simultaneously, the push rod extends the latch from the lock body. After the latch extends, the push rod is locked by a locking plate to prevent it from springing back, thus locking the cabinet door. To unlock the cabinet door, press the button again and release your finger. The locking plate releases the push rod, and the spring pushes the push rod upwards, causing the latch to retract into the lock body, unlocking the cabinet door.

[0003] Currently, in commonly used push locks, the guide between the push rod and the lock shell is insufficient when the lock is in the unlocking and locking states. This results in the push rod wobbling significantly and misalignment, causing jamming and abnormal noises during the unlocking and locking process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lock body structure for a push lock that reduces push rod wobbling, thereby solving the problems of jamming and abnormal noise during the unlocking and locking process.

[0005] This utility model provides a lock body structure for a push-button lock that reduces push rod wobbling, comprising:

[0006] A lock housing, wherein a guide post is provided inside the lock housing, and a lock tongue is provided on one side of the lock housing;

[0007] A push rod, one end of which is provided with a guide hole along the axial direction, the guide hole being slidably adapted to the outside of the guide post, and the other end of the push rod extending out of the lock housing;

[0008] A spring, which is axially disposed within the guide hole and supported between the guide post and the push rod;

[0009] A latch, wherein the latch is located at the latch opening, and the push rod cooperates with the latch to drive the latch to extend or retract into the latch opening; and,

[0010] A locking plate, located inside the lock housing, is used to lock or release the push rod.

[0011] Furthermore, the guide post is surrounded by a plurality of protruding ridges extending along its axial direction, and the wall of the guide hole slides in contact with each of the protruding ridges.

[0012] Furthermore, the guide post is a hollow tubular structure, and the first end of the spring extends into the guide post.

[0013] Furthermore, the bottom of the guide hole is provided with a positioning protrusion, and the second end of the spring is positioned on the positioning protrusion.

[0014] Furthermore, drive shafts are symmetrically provided on both sides of the push rod near the guide post end;

[0015] The latch includes a driving part and an extension part disposed on the side of the driving part facing the latch opening and capable of extending out or retracting into the latch opening;

[0016] The drive unit is slidably installed inside the lock housing. The direction of the drive unit's sliding is perpendicular to the axis of the push rod. The drive unit includes two drive plates arranged opposite each other. The opposite sides of the two drive plates are symmetrically provided with drive grooves. The drive shafts on both sides of the push rod are adapted to each of the drive grooves.

[0017] Furthermore, a locking plate mounting groove is provided on the side of the lock housing away from the bolt opening;

[0018] The locking piece is disposed in the locking piece mounting groove, and the side of the locking piece away from the push rod is provided with an elastic support leg that is supported on the side wall of the locking piece mounting groove.

[0019] The locking plate has a locking groove on the side near the push rod, and a locking rod is provided on one side of the push rod that abuts against the locking groove. The locking groove includes a push rod rebound groove, a pressing sliding groove, a locking guide groove, a push rod locking groove, and a rebound sliding groove connected end to end. The depths of the push rod rebound groove and the pressing sliding groove gradually decrease. The locking guide groove is deeper than the pressing sliding groove and forms a guide step between them. The push rod locking groove is deeper than the locking guide groove and forms a guide step between them. One end of the rebound sliding groove is deeper than the push rod locking groove and forms a guide step between them. The push rod rebound groove is deeper than the other end of the rebound sliding groove and forms a guide step between them. The rebound sliding groove gradually becomes shallower from one end of the push rod locking groove to one end of the push rod rebound groove.

[0020] Furthermore, a guide protrusion is provided on the side of the guide post opposite to the locking rod;

[0021] The lock housing has guide slots located on both sides of the guide post, which are respectively adapted to the locking rod and the guide protrusion.

[0022] Furthermore, a lock cover is provided on one side of the lock housing, and the lock cover has a through hole for the push rod to pass through.

[0023] The beneficial effects of this utility model are reflected in:

[0024] When the push rod is pressed, the spring is compressed, and at the same time the push rod drives the bolt to extend out of the bolt opening. After the bolt extends, the push rod is locked by the locking plate to prevent it from springing back, thus locking the cabinet door. When you need to unlock, press the push rod again and then release it. The locking plate releases the push rod, and the spring pushes the push rod upward, which in turn drives the bolt to retract into the lock body, thus unlocking the cabinet door.

[0025] This application solves the problem by setting a guide post inside the lock housing and a guide hole at one end of the push rod. The guide hole inside the push rod slides and guides the guide post. Throughout the entire locking and unlocking process, the push rod and the guide post maintain a precise guiding fit. This increases the stability of the push rod, aligns the push rod with the lock housing, effectively prevents the push rod from wobbling, and completely solves the common problems of jamming and abnormal noise during locking and unlocking. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 This is an assembly drawing of an embodiment of the present utility model;

[0028] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0029] Figure 3 This is a cross-sectional view of the present invention when locked according to an embodiment;

[0030] Figure 4 This is a cross-sectional view of the lock being opened according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the locking piece in an embodiment of the present invention.

[0032] In the attached diagram, 100-lock housing; 110-guide post; 111-protruding ridge; 120-lock tongue opening; 130-locking plate mounting groove; 140-guide groove opening; 150-lock cover; 151-through hole; 200-push rod; 210-guide hole; 220-positioning protrusion; 230-drive shaft; 240-locking rod; 250-guide protrusion; 300-spring; 400-lock tongue; 410-drive part; 411-drive plate; 412-drive inclined groove; 420-protrusion; 500-locking plate; 510-elastic support leg; 520-locking groove; 521-push rod springback groove; 522-press sliding groove; 523-locking guide groove; 524-push rod locking groove; 525-springback sliding groove. Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0035] like Figures 1-5 As shown, this utility model embodiment provides a lock body structure for a push lock that reduces push rod wobbling, including a lock shell 100, a push rod 200, a spring 300, a lock tongue 400, and a locking plate 500.

[0036] The lock housing 100 has a guide post 110 inside, and a lock tongue 120 is provided on one side of the lock housing 100.

[0037] One end of the push rod 200 is provided with a guide hole 210 along the axial direction. The guide hole 210 is slidably adapted to the outside of the guide post 110, and the other end of the push rod 200 extends out of the lock housing 100.

[0038] The spring 300 is axially disposed in the guide hole 210 and supported between the guide post 110 and the push rod 200.

[0039] Specific reference Figure 2 In order to reduce the friction between the guide hole 210 and the guide post 110 and improve the fitting accuracy between the guide hole 210 and the guide post 110, multiple convex ridges 111 extending along its axial direction are evenly distributed around the guide post 110, and the hole wall of the guide hole 210 slides in contact with each convex ridge 111.

[0040] Reference Figure 3 and Figure 4 In order to accommodate a spring 300 of sufficient length and to position the first end of the spring 300, the guide post 110 is a hollow tubular structure, and the first end of the spring 300 extends into the guide post 110.

[0041] Continue to refer to Figure 3 and Figure 4 In order to position the second end of the spring 300, a positioning protrusion 220 is provided at the bottom of the guide hole 210, and the second end of the spring 300 is positioned on the positioning protrusion 220.

[0042] The locking tongue 400 is located at the locking tongue opening 120. The push rod 200 cooperates with the locking tongue 400 to drive the locking tongue 400 to extend or retract into the locking tongue opening 120.

[0043] Specific reference Figure 2The push rod 200 has drive shafts 230 symmetrically arranged on both sides near the end of the guide post 110.

[0044] The latch 400 includes a drive part 410 and an extension part 420 provided on the drive part 410 facing the latch opening 120 and capable of extending or retracting into the latch opening 120.

[0045] The drive unit 410 is slidably installed inside the lock housing 100. The direction of sliding of the drive unit 410 is perpendicular to the axis of the push rod 200. The drive unit 410 includes two drive plates 411 arranged opposite to each other. The two drive plates 411 are symmetrically provided with drive grooves 412 on opposite sides. The drive shafts 230 on both sides of the push rod 200 are adapted to each drive groove 412 in a one-to-one correspondence.

[0046] like Figure 4 As shown, when the push rod 200 is pressed, the push rod 200 interacts with the drive grooves 412 in the two drive plates 411 via the drive shafts 230 on both sides, pushing the latch 400 outward, so that the protruding part 420 of the latch 400 extends out of the latch opening 120, as shown. Figure 3 As shown, when the push rod 200 rebounds, it pushes the lock tongue 400 to move inside the lock housing 100 through the interaction of the drive shafts 230 on both sides and the drive grooves 412 in the two drive plates 411, so that the protruding part 420 of the lock tongue 400 retracts into the lock tongue opening 120.

[0047] The locking plate 500 is located inside the lock housing 100 and is used to lock or release the push rod 200.

[0048] Specific reference Figures 3-5 A locking plate mounting groove 130 is provided on the side of the lock housing 100 away from the bolt opening 120;

[0049] The locking plate 500 is located in the locking plate mounting groove 130, and the side of the locking plate 500 away from the push rod 200 is provided with an elastic support leg 510 supported on the side wall of the locking plate mounting groove 130.

[0050] The locking plate 500 has a locking groove 520 on the side near the push rod 200, and a locking rod 240 is provided on one side of the push rod 200, which abuts against the locking groove 520. The locking groove 520 includes a push rod rebound groove 521, a pressing sliding groove 522, a locking guide groove 523, a push rod locking groove 524, and a rebound sliding groove 525 connected end to end. The depth of the push rod rebound groove 521 and the pressing sliding groove 522 gradually decreases, and the locking guide groove 523 is deeper than the pressing sliding groove 522. A guide step is formed between the two. The push rod locking groove 524 is deeper than the locking guide groove 523 and a guide step is formed between the two. One end of the spring-back sliding groove 525 is deeper than the push rod locking groove 524 and a guide step is formed between the two. The push rod spring-back groove 521 is deeper than the other end of the spring-back sliding groove 525 and a guide step is formed between the two. The spring-back sliding groove 525 gradually becomes shallower from one end of the push rod locking groove 524 to one end of the push rod spring-back groove 521.

[0051] like Figure 3 and 5 As shown, when the lock body is in the unlocked state (e.g.) Figure 3 As shown, the locking rod 240 on the push rod 200 abuts against the push rod return groove 521. When the push rod 200 is pressed, the locking rod 240 slides along the push rod return groove 521 and the pressing sliding groove 522. As the depth of the push rod return groove 521 and the pressing sliding groove 522 gradually decreases, the locking piece 500 retracts a certain distance away from the locking rod 240 during this process. When the push rod 200 is pressed to the bottom, the locking rod 240 slides into the locking guide groove 523. Since the locking guide groove 523 is deeper than the pressing sliding groove 522, the locking rod 240 slides into the locking guide groove. When in slot 523, the locking plate 500 moves forward a distance under the action of the elastic support leg 510, then the push rod 200 is released, and the push rod 200 rebounds a short distance. The locking rod 240 is guided from the locking guide slot 523 into the push rod locking slot 524. Since the push rod locking slot 524 is deeper than the locking guide slot 523, when the locking rod 240 slides into the push rod locking slot 524, the locking plate 500 moves forward a distance under the action of the elastic support leg 510. After the locking rod 240 slides into the push rod locking slot 524, the push rod 200 can be locked in the locked state of the lock body (e.g., Figure 4(As shown), when unlocking is required, press the push rod 200. The locking rod 240 slides from the push rod locking groove 524 into one end of the spring-loaded sliding groove 525. One end of the spring-loaded sliding groove 525 is deeper than the push rod locking groove 524. When the locking rod 240 slides into the spring-loaded sliding groove 525, the locking piece 500 moves forward a distance under the action of the elastic support leg 510. Then release the push rod 200. The push rod 200 is then released under the action of the spring 300. Upon rebound, the locking rod 240 slides along the rebound sliding groove 525. As the rebound sliding groove 525 gradually becomes shallower from one end of the push rod locking groove 524 to the other end of the push rod rebound groove 521, the locking piece 500 retracts a certain distance away from the locking rod 240 during this process. When the push rod 200 rebounds to its bottom, the locking rod 240 slides into the push rod rebound groove 521. At this time, the locking piece 500 moves forward a distance, and the lock body returns to the unlocked state (e.g., ...). Figure 3 (As shown).

[0052] In some embodiments, refer to Figure 2 A guide protrusion 250 is provided on the side of the guide post 110 opposite to the locking rod 240. The lock housing 100 has guide slots 140 located on both sides of the guide post 110, respectively adapted to the locking rod 240 and the guide protrusion 250. By providing guide slots 140 within the lock housing 100 for guiding and limiting the locking rod 240 and guide protrusion 250 on both sides of the push rod 200, the stability of the push rod 200 can be further improved.

[0053] In some embodiments, refer to Figure 1 and Figure 2 To facilitate assembly, a lock cover 150 is provided on one side of the lock housing 100, and the lock cover 150 is provided with a through hole 151 for the push rod 200 to pass through.

[0054] In this embodiment, when the push rod 200 is pressed, the spring 300 is compressed. At the same time, the push rod 200 drives the latch 400 to extend out of the latch opening 120. After the latch 400 extends, the push rod 200 is locked by the locking plate 500 to prevent it from rebounding and thus lock the cabinet door. When it is necessary to unlock, the push rod 200 is pressed again and then released. The locking plate 500 releases the push rod 200, and the spring 300 pushes the push rod 200 upward, thereby driving the latch 400 to retract into the lock body and thus unlock the cabinet door.

[0055] This application provides a guide post 110 inside the lock housing 100 and a guide hole 210 at one end of the push rod 200. The guide hole 210 inside the push rod 200 slides and guides the guide post 110. Throughout the entire locking and unlocking process, the push rod 200 and the guide post 110 maintain a precise guiding fit. This increases the stability of the push rod 200, aligns the push rod 200 with the lock housing 100, effectively prevents the push rod 200 from wobbling, and completely solves the common problems of jamming and abnormal noise during locking and unlocking.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A lock body structure for a push-button lock that reduces push rod wobbling, characterized in that, include: A lock housing, wherein a guide post is provided inside the lock housing, and a lock tongue is provided on one side of the lock housing; A push rod, one end of which is provided with a guide hole along the axial direction, the guide hole being slidably adapted to the outside of the guide post, and the other end of the push rod extending out of the lock housing; A spring, which is axially disposed within the guide hole and supported between the guide post and the push rod; The locking tongue is located at the locking tongue opening, and the push rod cooperates with the locking tongue to drive the locking tongue to extend or retract into the locking tongue opening; as well as, A locking plate, located inside the lock housing, is used to lock or release the push rod.

2. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The guide post is surrounded by a plurality of protruding ridges that extend along its axial direction, and the wall of the guide hole slides in contact with each of the protruding ridges.

3. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The guide post is a hollow tubular structure, and the first end of the spring extends into the guide post.

4. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The bottom of the guide hole is provided with a positioning protrusion, and the second end of the spring is positioned on the positioning protrusion.

5. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The push rod is symmetrically provided with drive shafts on both sides near the guide post end; The latch includes a driving part and an extension part disposed on the side of the driving part facing the latch opening and capable of extending out or retracting into the latch opening; The drive unit is slidably installed inside the lock housing. The direction of the drive unit's sliding is perpendicular to the axis of the push rod. The drive unit includes two drive plates arranged opposite each other. The opposite sides of the two drive plates are symmetrically provided with drive grooves. The drive shafts on both sides of the push rod are adapted to each of the drive grooves.

6. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The lock housing has a locking plate mounting groove on the side away from the bolt opening; The locking piece is disposed in the locking piece mounting groove, and the side of the locking piece away from the push rod is provided with an elastic support leg that is supported on the side wall of the locking piece mounting groove. The locking plate has a locking groove on the side near the push rod, and a locking rod is provided on one side of the push rod that abuts against the locking groove. The locking groove includes a push rod rebound groove, a pressing sliding groove, a locking guide groove, a push rod locking groove, and a rebound sliding groove connected end to end. The depths of the push rod rebound groove and the pressing sliding groove gradually decrease. The locking guide groove is deeper than the pressing sliding groove and forms a guide step between them. The push rod locking groove is deeper than the locking guide groove and forms a guide step between them. One end of the rebound sliding groove is deeper than the push rod locking groove and forms a guide step between them. The push rod rebound groove is deeper than the other end of the rebound sliding groove and forms a guide step between them. The rebound sliding groove gradually becomes shallower from one end of the push rod locking groove to one end of the push rod rebound groove.

7. The lock body structure of the push lock for reducing push rod wobbling according to claim 6, characterized in that, The guide post has a guide protrusion on the side opposite to the locking rod; The lock housing has guide slots located on both sides of the guide post, which are respectively adapted to the locking rod and the guide protrusion.

8. The lock body structure of the push lock for reducing push rod wobbling according to claim 1, characterized in that, The lock housing has a lock cover on one side, and the lock cover has a through hole for the push rod to pass through.

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