A running silent smooth anti-drop strip lock device

Abstract

This utility model relates to the field of lock technology, specifically a bar lock, and a bar lock device for quiet, smooth operation and anti-falling mechanism. It includes a lock housing with a travel groove, a sliding rod disposed within the lock housing, and a fork block and an anti-falling mechanism respectively disposed at the upper and lower ends of the sliding rod. The fork block passes through the travel groove. Its key feature is that rubber components are provided at the contact points between the sliding rod and the lock housing, the contact points between the anti-falling mechanism and the lock housing, and the contact points between the fork block and the lock housing, respectively, to provide noise reduction and prevent metal-to-metal collisions. The anti-falling mechanism includes a gripping clamp disposed on one side of the lower end of the sliding rod and moving with the sliding rod, a hook portion disposed on the other side of the lower end of the sliding rod, and a hook block that is movably hooked together with the hook portion. A movable gap and a return spring are formed between the hook block and the hook portion. A protrusion is also provided on the hook block for the gripping clamp to grip and support it. This utility model has the advantages of quiet, smooth operation and high security.

Description

Technical Field

[0001] This utility model relates to the field of locks, and in particular to a bar lock. Background Technology

[0002] Bar locks, due to their slender size, are widely used in sliding doors and windows. If the fork of a bar lock automatically drops during use, the door or window will open automatically, posing a significant safety hazard. Therefore, preventing drop has always been a technical focus in this field. The technical solution of Chinese utility model patent application number 202221074798.0, entitled "Novel Anti-Drop Sliding Lock and Door / Window," includes a lock housing, a sliding main rod with a fork at its upper end that slides up and down inside the lock housing, and a movable component located at the lower part of the sliding main rod that can slide up and down along the sliding main rod. A positioning hole is provided in the lower part of the lock housing, first positioning beads are respectively provided on the left and right sides of the movable component, and an anti-drop block is fixed at the bottom end of the sliding main rod. Thus, when the sliding main rod is moved upwards to the locked position, the movable component and the anti-drop block together clamp and push the first positioning beads into the positioning hole, thereby preventing the sliding main rod from falling downwards on its own. However, this technology still has the following technical problems in use: First, to ensure the mechanical strength of the lock case and the wear resistance of the first positioning bead, both the lock case and the first positioning bead are usually made of metal. This results in a lot of noise when the first positioning bead is pushed into the positioning hole due to the collision between the metal parts. Second, the first positioning bead is very small and can easily come out of the positioning hole when subjected to external force, thus losing its locking function. At the same time, the first positioning bead is prone to rolling off, making assembly difficult and reducing production efficiency.

[0003] Given the above-mentioned shortcomings of the existing technology, the applicant believes it is necessary to make technical improvements to provide a silent and easy-to-assemble anti-falling bar lock. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and shortcomings, and to provide a quiet, smooth-running, anti-falling bar lock device. By using rubber components, collisions between metal parts are avoided, enabling the bar lock to operate quietly. The rubber components located at the contact points between the sliding rod and the lock housing, and at the contact points between the anti-falling mechanism and the lock housing, can also use their elastic deformation under pressure to position the sliding rod and anti-falling mechanism inside the lock housing, preventing them from falling. Simultaneously, the anti-falling mechanism also provides support to the sliding rod, further preventing it from falling and ensuring smooth operation of the bar lock. Furthermore, the components of this invention are less prone to rolling, are easy to assemble, and can greatly improve production efficiency.

[0005] The technical solution of this utility model is implemented as follows: a silent and smooth-running anti-falling bar lock device includes a lock shell with a travel groove and a sliding rod disposed within the lock shell. The upper and lower ends of the sliding rod are respectively provided with a fork block and an anti-falling mechanism, and the fork block passes through the travel groove. Its characteristic is that rubber parts are provided at the contact points between the sliding rod and the lock shell, the contact points between the anti-falling mechanism and the lock shell, and the contact points between the fork block and the lock shell, respectively, to provide noise reduction and prevent metal-to-metal collision contact. The anti-falling mechanism includes a gripping clamp disposed on one side of the lower end of the sliding rod and moving with the sliding rod, a hook portion disposed on the other side of the lower end of the sliding rod, and a hook block that is movably hooked together with the hook portion. An movable gap and a return spring are also formed between the hook block and the hook portion. A protrusion is also provided on the hook block for the gripping clamp to grip and support it.

[0006] Furthermore, the hook block component includes a hook block base, a first hook groove disposed on the top of the hook block base, and a first hook plate extending vertically downward from the outer end of the bottom of the first hook groove; the hook part includes a hook bottom plate inserted into the first hook groove, a second hook groove disposed above the hook bottom plate, and a second hook plate extending vertically upward from the outer end of the bottom of the second hook groove; the first hook plate is inserted into the second hook groove and forms a movable gap with the bottom of the second hook groove; at the same time, the second hook plate is inserted into the first hook groove and also forms a movable gap with the bottom of the first hook groove; the reset spring is clamped between the hook bottom plate next to the second hook plate and the bottom of the first hook groove.

[0007] Furthermore, the rubber component is a rubber strip, and the bottom surface of the hook base plate is provided with a rubber strip groove for embedding the rubber strip.

[0008] Furthermore, the back of the protrusion is provided with a clamping groove, and one end of the hook block base is embedded in the clamping groove; the other end of the hook block base is provided with a rubber strip groove for embedding a rubber strip.

[0009] Furthermore, a trapezoidal interlocking block is provided at the bottom of the clamping groove, and a corresponding trapezoidal interlocking groove is provided on the hook block base.

[0010] Furthermore, the back of the gripper is provided with a trapezoidal interlocking block, and the sliding rod is provided with a corresponding trapezoidal interlocking groove.

[0011] Furthermore, a straight strip interlocking block is also provided on the gripper next to the trapezoidal interlocking block, and a corresponding straight strip interlocking groove is also provided on the sliding rod.

[0012] Furthermore, the upper end of the protrusion is provided with a first clamping protrusion and a second clamping protrusion from bottom to top, and a transition slope is connected between the first clamping protrusion and the second clamping protrusion; there are also supporting planes on the protrusions located on both sides of the first clamping protrusion.

[0013] The beneficial effects of this utility model are: Firstly, to ensure structural strength, the lock case, sliding rod, and lever fork of a bar lock are typically made of metal. This invention incorporates rubber parts at the contact points between the sliding rod and the lock case, the anti-fall mechanism and the lock case, and the lever fork and the lock case. These parts serve to mute noise and prevent metal-to-metal collisions. This ensures that the bar lock operates quietly during both locking and unlocking, preventing collisions between metal components and significantly improving the user experience.

[0014] Secondly, the rubber components located at the contact points between the sliding rod and the lock housing, and between the anti-fall mechanism and the lock housing, can also position the sliding rod and the anti-fall mechanism within the lock housing due to the elastic deformation and rebound force generated by compression. Furthermore, the elastic recovery property of the rubber components allows them to automatically compensate for the gap fluctuations between the sliding rod, the anti-fall mechanism, and the lock housing when the door or window is shaken by external forces. This ensures that the sliding rod and the anti-fall mechanism can be stably positioned inside the lock housing and will not fall down on their own, thereby greatly improving the safety performance of the door or window.

[0015] Secondly, during the locking process, the sliding rod needs to eliminate the gap between the hook block and the hook buckle, compress the return spring, and then drive the hook block to slide upward together. At the same time, the gripper clamps the gripping protrusion. Under the action of the return spring, the sliding rod and the hook block can be hooked together very stably without any shaking in any direction. This allows the gripper to firmly grip and support the protrusion, thus making the sliding rod more stably positioned inside the lock case and preventing it from falling down automatically. During the unlocking process, the return spring pushes the hook buckle downward through its rebound force, allowing the sliding rod 2 to move downward more smoothly, making the unlocking process very smooth and effortless.

[0016] Furthermore, during assembly, by hooking the hook part onto the hook block and gripping the gripper and the gripper gripping the protrusion, the anti-fall mechanism and the sliding rod can be integrated into a whole, eliminating concerns about parts falling off. This helps to speed up assembly and improve production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2This is a half-sectional structural diagram of the present invention in the unlocked state.

[0019] Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0020] Figure 4 This is a half-sectional view of the present invention in the locked state.

[0021] Figure 5 This utility model Figure 3 A magnified structural diagram of part B.

[0022] Figure 6 This is a schematic diagram of the assembly of the sliding rod and the anti-fall mechanism in this utility model.

[0023] Figure 7 This is a schematic diagram of the gripper component in this utility model.

[0024] Figure 8 This is a schematic diagram of the protrusion component in this utility model.

[0025] Figure 9 This is a schematic diagram of the hook block in this utility model.

[0026] Figure 10 This is a structural diagram of the rubber component in this utility model when it is a rubber block. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figures 1 to 6 This utility model provides a quiet, smooth-running, anti-falling bar lock device, including a lock housing 1 with a travel groove 11 and a sliding rod 2 disposed within the lock housing 1. The upper and lower ends of the sliding rod 2 are respectively provided with a fork block 21 and an anti-falling mechanism 20, and the fork block 21 passes through the travel groove 11. To achieve the purpose proposed by this utility model, at the positions where the sliding rod 2 contacts the lock housing 1, at the positions where the anti-falling mechanism 20 contacts the lock housing 1, and at the positions where the fork block 21 contacts the lock housing 1, respectively, there are... The rubber part 3 is for noise reduction and to prevent metal-to-metal collision contact; the anti-fall mechanism 20 includes a gripper 201 disposed on one side of the lower end of the sliding rod 2 and moving with the sliding rod 2, a hook part 202 disposed on the other side of the lower end of the sliding rod 2, and a hook block 203 that is movably hooked together with the hook part 202. A movable gap and a return spring 204 are also formed between the hook block 203 and the hook part 202. A protrusion 206 is also provided on the hook block 203 for the gripper 201 to grip and support.

[0029] In this way, the rubber component 3 prevents collisions between the metal parts such as the sliding rod 2, the anti-fall mechanism 20, and the fork block 21 and the lock housing 1, making the bar lock very quiet during use and greatly improving the user experience. Furthermore, the deformation and rebound force generated by the rubber component 3 between the sliding rod 2, the anti-fall mechanism 20, and the inner wall of the lock housing 1 after compression can also keep the sliding rod 2 and the anti-fall mechanism 20 pressed against the inside of the lock housing 1, requiring external force to pull them up and down inside the lock housing 1. Simultaneously, the anti-fall mechanism 20 also clamps onto the protrusion 206 via the gripper 201 and is supported on the protrusion 206, further improving the stability of the sliding rod 2 and ensuring the security of the bar lock in the locked state.

[0030] In this invention, a movable gap and a return spring 204 are formed between the hook block 203 and the hook buckle 202. When the sliding rod 2 is pushed upwards to lock, the movable gap must first be overcome before the hook buckle 202 can move the hook block 203 upwards. During this process, the return spring 204 is compressed, and its rebound force balances the forces acting on the hook buckle 202 and hook block 203 in both directions, preventing them from wobbling and ensuring a smooth locking process. Furthermore, the return spring 204 and the movable gap prevent collisions between the hook buckle 202 and hook block 203 when they hook and move up and down together, further reducing noise during use and improving quiet operation. In addition, when unlocking, pressing down on the hook block 203 causes the sliding rod 2 to slide downwards. The return force of the return spring 204 can also push the hook part 202 to assist the sliding rod 2 to slide downwards, thus making the unlocking process more effortless and smooth.

[0031] Furthermore, by gripping the protrusion 206 with the clamping clamp 201, and by hooking the hook and latching part 202 and the hook block 203 together, the anti-fall mechanism 20 and the sliding rod 2 are assembled into a single structure, eliminating concerns about parts falling off or being lost, thereby greatly improving production efficiency.

[0032] like Figure 3 , 5As shown, the hook block 203 includes a hook block base 2031, a first hook groove 2032 disposed on the top of the hook block base 2031, and a first hook plate 2033 extending vertically downward from the outer end of the bottom of the first hook groove 2032; the hook part 202 includes a hook bottom plate 2021 inserted into the first hook groove 2032, a second hook groove 2022 disposed above the hook bottom plate 2021, and a hook plate 2033 extending vertically upward from the outer end of the bottom of the second hook groove 2022. The second hook plate 2023 is extended; the first hook plate 2033 is inserted into the second hook groove 2022, forming a movable gap with the bottom of the second hook groove 2022; simultaneously, the second hook plate 2023 is inserted into the first hook groove 2032, also forming a movable gap with the bottom of the first hook groove 2032; the return spring 204 is sandwiched between the hook base plate 2021 on the side of the second hook plate 2023 and the bottom of the first hook groove 2032. In this way, the hook block 203 and the hook part 202 form a double hook structure, which not only greatly enhances the stability of the connection structure between the two, but also allows them to be assembled very tightly together, which is beneficial to reducing the size of the bar lock. Furthermore, the reset spring 204 is clamped between the hook base plate 2021 and the bottom of the first hook groove 2032, so that the reset spring 204 can extend and retract in the vertical direction, preventing the reset spring 204 from twisting during use, thereby enabling the reset spring 204 to function very stably.

[0033] like Figure 3 , 5 As shown, the rubber part 3 is a rubber strip, and the bottom surface of the hook base plate 2021 is provided with a rubber strip groove 30 for the rubber strip to be embedded. In this way, when the return spring 204 pushes the hook base plate 2021 downward to press it against the top surface of the hook block base 2031 after unlocking, no metal collision sound will be made, thus ensuring the silent effect of this utility model.

[0034] like Figure 3 , 5 As shown in Figures 8 and 9, the back of the protrusion 206 is provided with a clamping groove 2061, which is formed by two straight protruding plates arranged side by side between the bottom and top of the protrusion 206. One end of the hook base 2031 is embedded in the clamping groove 2061. The other end of the hook base 2031 is provided with a rubber strip groove 30 for embedding a rubber strip. In this way, the hook 203 is quickly assembled with the protrusion 206 by being embedded in the clamping groove 2061 at one end of the hook base 2031, and the rubber strip groove 30 for embedding the rubber strip enables the hook 203 to achieve a silent effect when sliding inside the lock case 1.

[0035] To further improve the firmness between the protrusion 206 and the hook block 203, such as Figure 3 ,5 As shown in Figures 8 and 9, a trapezoidal interlocking block 2011 is also provided at the bottom of the clamping groove 2061, and a corresponding trapezoidal interlocking groove 23 is provided on the hook block base 2031. This trapezoidal slope greatly improves the reliability of the connection between the protrusion 206 and the hook block 203, as well as the load-bearing capacity of the protrusion 206, providing better support for the gripping insert 201, thereby further improving the safety of this utility model.

[0036] like Figure 3 , 5 As shown, the bottom surface of the hook base plate 2021 is also provided with a relief groove 2024, so that the upper side wall of the clamping groove 2061 is embedded in the relief groove 2024, so that the protrusion 206, the hook block 203, and the hook part 202 can be assembled together very tightly, thereby helping to reduce the size of the bar lock.

[0037] In order to securely and quickly assemble the gripper 201 onto the sliding rod 2, and to ensure that the gripper 201 has excellent gripping force, such as Figure 3 , 5 As shown in Figures 6 and 7, the back of the gripper 201 is provided with a trapezoidal interlocking block 2011, and the sliding rod 2 is correspondingly provided with a trapezoidal interlocking groove 23. Furthermore, a straight interlocking block 2012 is also provided on the gripper 201 next to the trapezoidal interlocking block 2011, and the sliding rod 2 is also correspondingly provided with a straight interlocking groove 24. This forms a multiple connection structure between the gripper 201 and the sliding rod 2, ensuring that the gripper 201 can be firmly assembled onto the sliding rod 2, guaranteeing the stable operation of the bar lock.

[0038] like Figure 3 , 5 As shown, the upper end of the protrusion 206 is provided with a first clamping protrusion 2062 and a second clamping protrusion 2063 sequentially from bottom to top, and a transition slope 2064 connects the first clamping protrusion 2062 and the second clamping protrusion 2063. Supporting planes 2065 are also provided on the protrusions 206 located on both sides of the first clamping protrusion 2062. Thus... Figure 2 , 3As shown, when the bar lock is in the unlocked state, the clamping head of the clamping insert 201 clamps both sides of the first clamping protrusion 2062, while the bottom end of the clamping insert 201 rests on the supporting plane 2065. When the sliding rod 2 slides upward to lock, the clamping head of the clamping insert 201 first disengages from the first clamping protrusion 2062, and then slides upward along the transition slope 2064 to the second clamping protrusion 2063, clamping both sides of the second clamping protrusion 2063. In this way, the protrusion 206 can provide support for the clamping insert 201 throughout the entire locking process, thereby further improving the security of this utility model. Conversely, during the unlocking process, the return spring 204, under the action of the rebound force, presses down on the hook base plate 2021, causing the grab insert 201 to slide down along the transition slope 2064 to the support plane 2065. The grab insert 201 clamps on both sides of the first clamping protrusion 2062. During the unlocking process, the protrusion 206 can provide support for the grab insert 201, so that the bar lock of this utility model can also operate very smoothly when unlocking, greatly improving the product quality.

[0039] like Figure 4 As shown, the rubber component 3 is a rubber strip, and the top of the sliding rod 2 is provided with a fork portion 22 for mounting the fork block 21. The front and rear side walls of the fork portion 22 are provided with rubber strip grooves 30 for embedding the rubber strip, and the rubber strip grooves 30 are arranged along the width direction of the sliding rod 2. Thus, when the sliding rod 2 is moved upwards, the front and rear sides of the fork portion 22 are supported by the rebound force of the rubber strip, preventing it from automatically sliding downwards. This allows the fork block 21 to maintain a very stable locked state, ensuring the reliability of the bar lock.

[0040] like Figure 6 , 10 As shown, the rubber component 3 is a rubber block with an insert strip 31 at the bottom. The rubber block also has a gap groove 32 to provide space for deformation. The top and bottom of the shift fork block 21 are respectively provided with slots 211 for the rubber block to be inserted. In this way, the rubber block can be quickly assembled onto the shift fork block 21 without tools, preventing collision noise when the shift fork block 21 contacts the upper and lower sides of the travel groove 11, thereby further improving the quietness effect of this utility model.

Claims

1. A silent and smooth-running anti-falling bar lock device, comprising a lock housing (1) with a travel groove (11) and a sliding rod (2) disposed within the lock housing (1), wherein the upper and lower ends of the sliding rod (2) are respectively provided with a fork block (21) and an anti-falling mechanism (20), and the fork block (21) is inserted into the travel groove (11); characterized in that: Rubber parts (3) are provided at the positions where the sliding rod (2) contacts the lock housing (1), the positions where the anti-fall mechanism (20) contacts the lock housing (1), and the positions where the fork block (21) contacts the lock housing (1) to provide noise reduction and prevent metal-to-metal collision. The fall arrest mechanism (20) includes a gripper (201) disposed on one side of the lower end of the sliding rod (2) and moving together with the sliding rod (2), a hook (202) disposed on the other side of the lower end of the sliding rod (2), and a hook block (203) that is movably hooked together with the hook (202). A movable gap and a return spring (204) are also formed between the hook block (203) and the hook (202). A protrusion (206) for the gripper (201) to grip and support is also provided on the hook block (203).

2. The operation of the silent, smooth and anti-drop strip lock device according to claim 1, characterized in that: The hook block (203) includes a hook block base (2031), a first hook groove (2032) disposed on the top of the hook block base (2031), and a first hook plate (2033) extending vertically downward from the outer end of the bottom of the first hook groove (2032); the hook part (202) includes a hook base plate (2021) inserted into the first hook groove (2032), a second hook groove (2022) disposed above the hook base plate (2021), and a hook plate extending vertically upward from the outer end of the bottom of the second hook groove (2022). The second hook plate (2023) is formed by extension; the first hook plate (2033) is inserted into the second hook groove (2022) and forms a movable gap with the bottom of the second hook groove (2022); at the same time, the second hook plate (2023) is inserted into the first hook groove (2032) and also forms a movable gap with the bottom of the first hook groove (2032); the reset spring (204) is sandwiched between the hook bottom plate (2021) on the side of the second hook plate (2023) and the bottom of the first hook groove (2032).

3. The operation of the silent, smooth and anti-drop strip lock device according to claim 2, characterized in that: The rubber component (3) is a rubber strip, and the bottom surface of the hook base plate (2021) is provided with a rubber strip groove (30) for embedding the rubber strip.

4. The operation of the silent, smooth and anti-drop strip lock device according to claim 3, characterized in that: The back of the protrusion (206) is provided with a clamping groove (2061), and one end of the hook block base (2031) is embedded in the clamping groove (2061); the other end of the hook block base (2031) is provided with a rubber strip groove (30) for embedding the rubber strip.

5. The operation of the silent, smooth and anti-drop strip lock device according to claim 4, characterized in that: The clamping groove (2061) is also provided with a trapezoidal insert block (2011) at the bottom of the groove, and the hook block base (2031) is provided with a corresponding trapezoidal insert groove (23).

6. The operation of the silent, smooth and anti-drop strip lock device according to claim 1, characterized by: The back of the gripper (201) is provided with a trapezoidal interlocking block (2011), and the sliding rod (2) is provided with a corresponding trapezoidal interlocking groove (23).

7. The operation of the silent, smooth and anti-drop strip lock device according to claim 6, characterized in that: A straight strip interlocking block (2012) is also provided on the gripper (201) next to the trapezoidal interlocking block (2011), and a straight strip interlocking groove (24) is also provided on the sliding rod (2).

8. The operation of the silent, smooth and anti-drop strip lock device according to claim 1, characterized by: The upper end of the protrusion (206) is provided with a first clamping protrusion (2062) and a second clamping protrusion (2063) from bottom to top, and a transition slope (2064) is connected between the first clamping protrusion (2062) and the second clamping protrusion (2063); there are also support planes (2065) on the protrusions (206) located on both sides of the first clamping protrusion (2062).

9. The operation of the silent, smooth and anti-drop strip lock device according to claim 1, characterized by: The rubber part (3) is a rubber strip. The top of the sliding rod (2) is provided with a fork part (22) for mounting the fork block (21). The front and rear side walls of the fork part (22) are provided with rubber strip grooves (30) for embedding the rubber strip, and the rubber strip grooves (30) are arranged along the width direction of the sliding rod (2).

10. The operation of the silent, smooth and anti-drop strip lock device according to claim 1, characterized by: The rubber component (3) is a rubber block with an insert strip (31) at the bottom, and the top and bottom of the fork block (21) are respectively provided with insert slots (211) for the rubber block to be inserted.

Images