Linear lock structure for sliding door and window

Abstract

The utility model relates to a line-shaped lock structure for sliding doors and windows, which comprises a first lock seat with a sliding chute and a sliding strip lock slidably arranged in the sliding chute, the first lock seat is provided with an operation hole penetrating to the sliding chute, the sliding strip lock is provided with an upper shifting part and a lower shifting part, the lower shifting part is provided with a locking step, and the locking step is provided with a locking groove. The locking device is characterized in that a jacking spring or a V-shaped elastic sheet which can enable the locking step to be always buckled at the edge of the lower hole opening of the operation hole in an abutting mode is further arranged between the sliding strip lock and the sliding groove. According to the linear lock structure for the sliding door and window, the jacking spring or the V-shaped elastic piece is adopted as a main component for jacking and locking the sliding strip lock, the sliding strip lock can be ensured to rebound rapidly by means of the large deformation stretching amplitude, the high rebound jacking force and the enough jacking height, the phenomena of automatic tripping and mistaken unlocking are prevented, and the safety of the sliding door and window is improved. And the reliability, the durability and the safety of the linear lock are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window lock technology, and in particular to a single-cylinder lock structure for sliding doors and windows. Background Technology

[0002] In current applications of sliding doors and windows, a single-cylinder lock is typically installed on the frame of the sliding door or window sash to provide a certain level of security. This single-cylinder lock locks the sliding door or window sash when closed. Chinese patent literature discloses a technical solution with patent number 202120172613.9, entitled "A Novel Single-Cylinder Lock for Sliding Doors." This single-cylinder lock mainly includes a lock base with a groove and a sliding bar lock slidably disposed in the groove. The lock base has an operating hole extending through the groove. The sliding bar lock has an upper actuating part and a lower actuating part. The lower actuating part has a locking step that can abut against the edge of the lower opening of the operating hole. A spiral spring is provided between the lower actuating part and the groove. The spiral spring consists of an integrally rolled limiting part, an embedded part, and an extension part. Through the elastic pressing of the spiral spring, the locking step can always abut against the edge of the lower opening of the operating hole, preventing the sliding bar lock from loosening and accidentally opening, thus achieving the function of anti-theft. However, this type of single-cylinder lock also has certain shortcomings in long-term use: Since the sliding bar lock relies on the arc-shaped extension of a spiral spring lying flat in the groove to lift the lock and engage the locking step with the edge of the operating hole, it achieves locking. However, the design of the spiral spring's arc-shaped extension limits its deformation range, resulting in limited rebound force and tightening height. Especially after a period of use, this extension is prone to metal fatigue, causing a decrease in elasticity. This further amplifies the already limited rebound force and tightening height, leading to a weak engagement between the locking step and the edge of the operating hole, making it prone to self-disengagement and accidental unlocking. Consequently, the anti-theft performance of the single-cylinder lock is reduced, its durability is poor, and its reliability and security are also inferior. Therefore, given the aforementioned shortcomings and deficiencies in the existing one-piece lock technology, the applicant believes it is essential to optimize and improve its structure in order to better meet people's application needs. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and shortcomings, and to provide a single-cylinder lock structure for sliding doors and windows. This single-cylinder lock structure for sliding doors and windows uses a top-compression spring or a V-shaped spring as the main component for tightening and locking the sliding bar lock. It utilizes a large deformation extension range, a strong rebound tightening force, and a sufficient tightening height. Even if this main component has undergone a certain period of use and metal fatigue occurs, there is still a certain amount of redundancy. This ensures that the sliding bar lock can quickly rebound and prevents the phenomenon of self-disengagement or accidental unlocking. It effectively improves the reliability, durability, and security of this type of single-cylinder lock.

[0004] The technical solution of this utility model is implemented as follows: a single-cylinder lock structure for sliding doors and windows includes a first lock seat with a groove and a sliding bar lock slidably disposed in the groove. The first lock seat has an operating hole that extends through the groove. The sliding bar lock has an upper actuating part and a lower actuating part. The lower actuating part has a locking step, and the locking step abuts against the lower opening edge of the operating hole. The feature is that a top pressure spring or V-shaped spring sheet is also provided between the sliding bar lock and the groove to ensure that the locking step always abuts against the lower opening edge of the operating hole.

[0005] Preferably, the sliding bar lock has a trapezoidal groove with a wide bottom and a narrow opening, and the top pressure spring is a spring structure with wide ends and a narrow middle. One end of the top pressure spring is fitted into the trapezoidal groove, and the other end of the top pressure spring rests on the bottom of the groove; or the V-shaped spring is composed of a locking part and a V-shaped elastic part. The locking part is fitted into the trapezoidal groove, and the V-shaped elastic part rests on the bottom of the groove.

[0006] Preferably, the V-shaped spring clip is integrally bent from an elastic metal sheet.

[0007] The beneficial effects of this utility model are as follows: Because this utility model uses a top-compression spring or V-shaped spring as the main locking component of the sliding bar lock, compared with the spiral spring in the prior art, the top-compression spring or V-shaped spring has a larger deformation extension range and a stronger rebound clamping force. Moreover, the two ends of its clamping force act vertically on the sliding bar lock and the slide groove, providing sufficient clamping height. Even if this main component experiences some metal fatigue after a certain period of use, there is still a certain amount of redundancy, which can ensure that the sliding bar lock rebounds quickly, preventing self-disengagement and accidental unlocking. This effectively improves the reliability, durability, and security of this type of single-cylinder lock. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0009] Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure of section AA.

[0010] Figure 3 This is a cross-sectional structural diagram of the V-shaped spring sheet applied to the first lock seat in this utility model.

[0011] Figure 4 This is a schematic diagram showing the disassembled structure of the V-shaped spring and the sliding bar lock in this utility model.

[0012] Figure 5 This is a three-dimensional structural diagram of the second lock seat with a partial cross-section in this utility model. Detailed Implementation

[0013] like Figures 1 to 3 As shown, the sliding door and window lock structure of this utility model includes a first lock seat 1 with a slide groove 11 and a sliding bar lock 2 slidably disposed in the slide groove 11. The first lock seat 1 has an operating hole 12 extending through the slide groove 11. The sliding bar lock 2 has an upper actuating part 21 and a lower actuating part 22. The lower actuating part 22 has a locking step 23, and the locking step 23 abuts against the lower edge of the operating hole 12. To achieve the purpose proposed by this utility model, a top-compression spring 3 or a V-shaped spring sheet 4 is also provided between the sliding bar lock 2 and the slide groove 11 to ensure that the locking step 23 always abuts against the lower edge of the operating hole 12. This utility model utilizes the fact that the top-compression spring 3 or the V-shaped spring sheet 4 has a large deformation extension range, as well as a strong rebound clamping force and vertical clamping height. Even when this main component experiences a certain degree of metal fatigue, there is still a certain amount of redundancy to ensure that the sliding bar lock 2 can quickly rebound and reset, preventing self-disengagement and accidental unlocking. Specifically, such as Figures 1 to 3 As shown, the operating hole 12 is opened on the front surface of the first lock seat 1. One end of the top pressure spring 3 or V-shaped spring sheet 4 presses against the rear surface of the sliding bar lock 2, and the other end of the top pressure spring 3 or V-shaped spring sheet 4 presses against the rear groove wall of the slide groove 11 to obtain a relatively vertical pressing height and pressing force.

[0014] To ensure the secure and reliable installation of the top pressure spring 3 or the V-shaped spring sheet 4, such as Figures 2 to 4As shown, the sliding lock 2 has a trapezoidal groove 24 with a wide bottom and a narrow opening. The top pressure spring 3 is made into a spring structure that is wide at both ends and narrow in the middle. One end of the top pressure spring 3 is fitted into the trapezoidal groove 24, and the other end of the top pressure spring 3 rests on the bottom of the sliding groove 11. With this spring structure, on the one hand, the top pressure spring 3 can be firmly locked in the trapezoidal groove 24 and will not fall off. On the other hand, when the top pressure spring 3 rests on the bottom of the sliding groove 11, it has a large contact area, so that the top pressure spring 3 will not be biased during the movement of the sliding lock 2, thus improving its stability. Alternatively, the V-shaped spring 4 is composed of a locking part 41 and a V-shaped elastic part 42. The shape of the locking part 41 is adapted to the trapezoidal groove 24 to ensure that the locking part 41 is firmly locked into the trapezoidal groove 24 and will not fall off. The V-shaped elastic part 42 rests on the bottom of the sliding groove 11. The lateral length of the V-shaped elastic part 42 is slightly larger than that of the locking part 41 to ensure a larger contact area between the V-shaped elastic part 42 and the bottom of the groove 11, thus ensuring the stability and reliability of the V-shaped elastic part 42's clamping and preventing misalignment during the movement of the sliding lock 2. The V-shaped spring 4 is integrally bent from an elastic metal sheet to facilitate its processing and production.

[0015] like Figure 1 As shown, this utility model also includes a second lock seat 6 arranged opposite to the first lock seat 1. In application, the first lock seat 1 is generally placed on the interior side of the sliding door / window frame, and the second lock seat 6 is generally placed on the balcony side of the sliding door / window frame, so that people can operate the opening and closing of the door / window from both the inside and outside sides of the sliding door / window.

[0016] To reduce the number of visible screws on the surface when installing the first lock seat 1 and the second lock seat 6 on the frame of the sliding door / window sash, thus improving the overall cleanliness, tamper resistance, and security of the sliding door / window sash surface, such as... Figure 2 and Figure 5 As shown, one end of the first lock seat 1 and the second lock seat 6 of this utility model is provided with a positioning groove 13. The positioning groove 13 at this position is engaged with one side of the mounting hole of the lock seat opened on the frame of the sliding door and window sash. The other end of the first lock seat 1 and the second lock seat 6 is also provided with a telescopic locking mechanism 14. The telescopic locking mechanism 14 is engaged with the other side of the mounting hole of the lock seat opened on the frame of the sliding door and window sash. By adjusting the set screw on the telescopic locking mechanism 14, the locking member on the telescopic locking mechanism 14 is locked on the other side of the mounting hole of the lock seat, thereby realizing the fixed installation of the first lock seat 1 and the second lock seat 6 in the mounting hole of the lock seat opened on the frame of the sliding door and window sash.

[0017] In order to ensure that the telescopic locking mechanism 14 has a simple structure, good locking effect, and prevents loosening, such as Figure 2 and Figure 5 As shown, the telescopic locking mechanism 14 includes a set screw 141, a push block 142 with a first contact slope 144, and a locking member 143 with a second contact slope 145. The locking member 143 is movably disposed in the end of the slide groove 11. The push block 142 is arranged in the slide groove 11, and the first contact slope 144 and the second contact slope 145 are in contact. The set screw 141 extends from the front of the first lock seat 1 and connects to the push block 142. When the set screw 141 is tightened, the push block 142 uses the contact action of the first contact slope 144 and the second contact slope 145 to push the locking member 143 to extend towards the end face of the slide groove 11, forming a slot 10 that is locked onto the edge of the mounting hole of the sliding door / window sash. When the telescopic locking mechanism 14 is applied to the second lock seat 6, as... Figure 1 and Figure 5 As shown, the set screw 141 is locked in from the inner surface of the second lock seat 6 to connect with the push block 142. When applied to the frame of a sliding door or window sash, the set screw 141 is not visible on the outer surface of the second lock seat 6, thereby reducing the number of screws visible on the surface of the lock seat 6 and improving the cleanliness, tamper resistance, and security of the entire sliding door or window sash surface.

[0018] In order for the clamping component 143 to be easily and effectively slidably moved along the slide groove 11 for assembly, such as Figure 2 and Figure 3 , Figure 5 As shown, the clamping member 143 is provided with a waist-shaped hole 146 that extends laterally through its middle portion. The clamping member 143 is assembled by a pin 15 that extends laterally through the slide groove 11 and the waist-shaped hole 146, allowing the clamping member 143 to slide along the slide groove 11.

[0019] To reduce friction between the sliding lock 2 and the slide groove 11 and to minimize noise, a friction buffer 5 is provided between the sliding lock 2 and the slide groove 11, as shown in the figure. The friction buffer 5 is generally made of plastic and is specifically positioned within the gap between the sliding lock 2 and the slide groove 11 where they can contact each other. Figure 4 As shown, the sliding bar lock 2 is also provided with an mounting groove 231 for mounting a friction buffer 5, and the friction buffer 5 is fastened into the mounting groove 231. In this way, the collision noise between the sliding bar lock 2 and the sliding groove 11 can be greatly reduced, the noise reduction effect is good, the product grade can be improved, and the user experience can be enhanced.

Claims

1. A single-cylinder lock structure for sliding doors and windows, comprising a first lock seat (1) with a groove (11) and a sliding bar lock (2) slidably disposed in the groove (11), wherein the first lock seat (1) has an operating hole (12) extending through the groove (11), and the sliding bar lock (2) has an upper actuating part (21) and a lower actuating part (22), wherein the lower actuating part (22) has a locking step (23), and the locking step (23) abuts against the lower opening edge of the operating hole (12), characterized in that: The sliding bar lock (2) and the slide groove (11) are further provided with a top pressure spring (3) or V-shaped spring (4) that can keep the locking step (23) abutting against the edge of the lower opening of the operating hole (12).

2. The single-cylinder lock structure for sliding doors and windows according to claim 1, characterized in that: The sliding bar lock (2) is provided with a trapezoidal slot (24) with a wide bottom and a narrow opening. The top pressure spring (3) is a spring structure with wide ends and a narrow middle. One end of the top pressure spring (3) is fitted into the trapezoidal slot (24), and the other end of the top pressure spring (3) rests on the bottom of the sliding groove (11). Alternatively, the V-shaped spring (4) is composed of a clamping part (41) and a V-shaped elastic part (42). The clamping part (41) is clamped to the trapezoidal slot (24), and the V-shaped elastic part (42) rests on the bottom of the sliding groove (11).

3. The single-cylinder lock structure for sliding doors and windows according to claim 2, characterized in that: The V-shaped spring sheet (4) is integrally bent from an elastic metal sheet.

4. The single-cylinder lock structure for sliding doors and windows according to claim 1, characterized in that: It also includes a second lock seat (6) with a slide groove (11) arranged opposite to the first lock seat (1).

5. The single-cylinder lock structure for sliding doors and windows according to claim 4, characterized in that: One end of the first lock seat (1) and the second lock seat (6) is provided with a positioning slot (13), and the other end of the first lock seat (1) and the second lock seat (6) is provided with a telescopic locking mechanism (14).

6. The single-cylinder lock structure for sliding doors and windows according to claim 5, characterized in that: The telescopic locking mechanism (14) includes a set screw (141), a push block (142) with a first contact slope (144), and a locking member (143) with a second contact slope (145). The locking member (143) is movably disposed in the end of the slide groove (11) along the slide groove (11). The push block (142) is arranged in the slide groove (11). The first contact slope (144) and the second contact slope (145) are in contact. The set screw (141) extends from the front of the first lock seat (1) and is connected to the push block (142). When the set screw (141) is tightened, the push block (142) pushes the locking member (143) to extend towards the end face of the slide groove (11).

7. The single-cylinder lock structure for sliding doors and windows according to claim 6, characterized in that: The clamping member (143) is provided with a waist-shaped hole (146) that extends laterally through its middle. The clamping member (143) is slidably moved along the slide groove (11) by a pin (15) that extends laterally through the slide groove (11) and the waist-shaped hole (146).

8. The single-cylinder lock structure for sliding doors and windows according to claim 1, characterized in that: A friction buffer (5) is also provided between the sliding bar lock (2) and the slide groove (11).

9. The single-cylinder lock structure for sliding doors and windows according to claim 8, characterized in that: The sliding bar lock (2) is also provided with an insert groove (231) for inserting the friction buffer (5).

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