A segment sliding type suspended door body lock structure

Abstract

The utility model relates to the field of section sliding type suspension door body lockset, concretely relates to a section sliding type suspension door body lock catch structure, including portal frame for supporting lock catch structure, the portal frame upper portion is fixedly installed with the protective cover through bolt, the portal frame rear side is provided with the door body, the door body front side is fixedly installed with the connecting piece, lock catch mechanism is used for with connecting piece joint cooperation. Set up lock catch mechanism, drive assembly passes through the thread transmission of thread rod and thread sleeve, drives the horizontal movement of limiting piece, its U shape lower part and locking cylinder outside contact, can accurate limit the position of locking cylinder, ensure that connecting piece and lock catch mechanism joint firm, because locking cylinder adopts rubber material and can rotate, when contacting with connecting piece, can enhance the locking effect through friction, when the door body slightly shakes due to wind force, microseismic, through the rotation buffer door body shake generated friction, reduce the wear and tear of component, prolong the life.

Description

Technical Field

[0001] This utility model relates to the field of door locks for sliding suspended doors, specifically to a door latch structure for sliding suspended doors. Background Technology

[0002] Segmented sliding gates, widely used in modern industrial and civil applications, occupy an important position in factory parks, logistics centers, and upscale residential communities due to their trackless design, high space utilization, and smooth operation. Their core advantage lies in achieving the opening and closing of large-span passageways through the sliding opening and closing of multiple gate segments. Furthermore, the trackless design at the bottom avoids malfunctions caused by dust accumulation and obstruction of traditional tracked gates, significantly reducing maintenance costs.

[0003] The locking structure of the sliding gate is a key component of the sliding gate, which is directly related to the stability and safety of the gate after it is closed. It needs to accurately connect and fix the gate to the fixed structure after the gate completes the closing action to prevent the gate from moving accidentally.

[0004] Traditional locks typically use a single latch and keyhole connection. However, sliding gates may experience slight swaying during operation due to wind, ground vibrations, or the gate's own weight. Over time, this can lead to misalignment between the latch and keyhole, resulting in a "partial lock"—the gate appears closed but is not truly locked. Especially in strong winds outdoors, the door's movement can cause repeated friction between the latch and keyhole, increasing the gap and further reducing the locking strength.

[0005] Therefore, it is necessary to invent a segmented sliding suspended door locking structure to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a sliding suspended door locking structure. The elastic element drives the support rod and locking cylinder to elastically fit with the connecting parts, avoiding the misalignment caused by the rigid fit between the traditional lock tongue and lock hole. At the same time, the drive assembly drives the limiting part to clamp the locking cylinder through the threaded rod and threaded sleeve, forming a double lock and enhancing the locking strength. This can solve the problems of "false lock" and reduced locking strength in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a segmented sliding suspended door locking structure, comprising...

[0008] A gantry frame is used to support the locking structure. A protective cover is fixedly installed on the upper part of the gantry frame by bolts. A door body is provided on the rear side of the gantry frame, and a connector is fixedly installed on the front side of the door body.

[0009] A locking mechanism is used to engage with a connecting piece. The locking mechanism includes a base, which is fixedly connected to the outer wall of the gantry frame. A connecting seat is fixedly connected to the upper part of the base. The connecting seat has through slots on both the left and right sides. A fixing post is fixedly connected to the inner wall of the through slot of the connecting seat. A support rod is slidably connected to the outer side of the fixing post. The support rod is elastically connected to the connecting seat through an elastic element. A locking cylinder is rotatably connected to the outer side of the support rod.

[0010] Preferably, the locking mechanism further includes a drive assembly, the output end of which is connected to a threaded sleeve, and the lower part of the threaded sleeve is fixedly connected to a limiting member, the outer side of which contacts the outer side of the locking cylinder.

[0011] Preferably, the lower part of the limiting member is U-shaped, the rear side of the lower part of the limiting member is an inclined surface, and the elastic member is a compression spring.

[0012] Preferably, the drive assembly includes a drive motor and a threaded rod. The drive motor is fixedly connected to the upper inner wall of the gantry frame, the protective cover covers the upper part of the drive motor, and the threaded rod is fixedly connected to the output shaft of the drive motor. The threaded rod is threadedly connected to a threaded sleeve.

[0013] Preferably, the limiting member slides in contact with the inner wall of the gantry frame, and a guide rod is horizontally fixedly connected to the inner wall of the gantry frame, the guide rod horizontally penetrating and sliding on the inner wall of the limiting member.

[0014] Preferably, the base is U-shaped and the connecting seat is I-shaped.

[0015] Preferably, the outer side of the locking cylinder is made of rubber.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] This utility model features a locking mechanism. The drive component, through the threaded transmission of the threaded rod and threaded sleeve, drives the limiting component to move horizontally. Its U-shaped lower part contacts the outer side of the locking cylinder, which can precisely limit the position of the locking cylinder and ensure that the connecting part and the locking mechanism are firmly engaged. Since the locking cylinder is made of rubber and can rotate, it can enhance the locking effect through friction when it contacts the connecting part. When the door shakes slightly due to wind or micro-vibration, the rotation buffers the friction caused by the shaking of the door, reduces component wear, and extends service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0020] Figure 2 This is a three-dimensional structural installation diagram of the connector and locking mechanism in this utility model;

[0021] Figure 3 This is a three-dimensional structural disassembly diagram of the protective cover in this utility model;

[0022] Figure 4 This is a right-side cross-sectional view of the three-dimensional structure of the gantry frame in this utility model;

[0023] Figure 5 This is a three-dimensional structural disassembly diagram of the locking mechanism in this utility model.

[0024] Legend:

[0025] 1. Door body; 2. Gantry frame; 3. Connector; 4. Locking mechanism; 41. Base; 42. Connecting seat; 43. Fixing column; 44. Support rod; 45. Locking cylinder; 46. Elastic element; 47. Limiting element; 48. Threaded sleeve; 49. Drive assembly; 491. Drive motor; 492. Threaded rod; 5. Protective cover. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1 , Figure 4 and Figure 5 The diagram shows a sliding suspended door locking structure, including a gantry frame 2 and a locking mechanism 4;

[0028] The gantry frame 2 is used to support the latch structure. As the supporting base of the latch structure, it is made of high-strength steel and welded. It is vertically fixed to the ground or the side of the door track. The upper part of the gantry frame 2 is fixed with a protective cover 5 by bolts. The door body 1 is set on the rear side of the gantry frame 2. The front side of the door body 1 is fixed with a connector 3. The door body 1 is one of the multi-segment units of the sliding suspended door. The connector 3 is fixed with bolts on the side facing the gantry frame 2. The connector 3 consists of two sets of rollers and a metal support frame. It is adapted to the locking cylinder 45 of the latch mechanism 4 to ensure the stability when the latch is engaged.

[0029] The locking mechanism 4 is used to engage with the connecting piece 3. The locking mechanism 4 includes a base 41, which is fixedly connected to the outer wall of the gantry frame 2 by bolts. The base 41 supports the connecting seat 42. The connecting seat 42 is fixedly connected to the upper part of the base 41. The connecting seat 42 has through slots on both sides, which provide space for the sliding of the support rod 44. The connecting seat 42 serves as the support point of the elastic element 46 and is the intermediate connecting carrier of the locking mechanism 4. A fixing post 43 is fixedly connected to the inner wall of the through slot of the connecting seat 42, providing a sliding track for the support rod 44 and restricting the movement direction of the support rod 44. The support rod 44 is slidably connected to the outer side of the fixing post 43 and can move along the axial direction of the fixing post 43. The locking cylinder 45 at its outer end is pushed by the elastic force of the elastic element 46, so that the locking cylinder 45 fits tightly against the connector 3. The support rod 44 and the connecting seat 42 are elastically connected by the elastic element 46, which is a compression spring with a spring constant of 5-10 N / mm. Under normal conditions, the elastic force pushes the support rod 44 outward to ensure that the locking cylinder 45 is always tightly fitted with the connector 3. The locking cylinder 45 is rotatably connected to the outside of the support rod 44. The locking cylinder 45 is in direct contact with the connector 3. The friction of the rubber material enhances the locking effect. The rotatable design reduces the frictional resistance when in contact with the connector 3, avoiding jamming when the door 1 closes. The rubber material buffers the impact force when in contact, reducing component wear.

[0030] like Figure 2 - Figure 4 As shown, the locking mechanism 4 also includes a drive assembly 49. The output end of the drive assembly 49 is connected to a threaded sleeve 48, which moves horizontally under the rotational drive of the threaded rod 492, driving the limiting member 47 to move synchronously, thereby limiting or releasing the locking cylinder 45. The lower part of the threaded sleeve 48 is fixedly connected to the limiting member 47, and the outer side of the limiting member 47 contacts the outer side of the locking cylinder 45. The lower part of the limiting member 47 is U-shaped, and the rear side of the lower part of the limiting member 47 is an inclined surface. When the limiting member 47 is locked, it moves towards the locking cylinder 45 under the drive of the drive assembly 49. The U-shaped structure clamps the locking cylinder 45, enhancing the locking strength and preventing it from loosening. The inclined surface guides the limiting member 47 into the locked position when it is locked, avoiding jamming.

[0031] like Figure 4 and Figure 5As shown, the drive assembly 49 includes a drive motor 491 and a threaded rod 492. The drive motor 491 is fixedly connected to the upper inner wall of the gantry frame 2 and serves as a power source. It is a geared motor with a self-locking function, which drives the threaded rod 492 to rotate via its output shaft, controlling the movement of the threaded sleeve 48 and the limiting member 47 to achieve locking and unlocking switching. The protective cover 5 covers the upper part of the drive motor 491. The threaded rod 492 is fixedly connected to the output shaft of the drive motor 491 and is threadedly connected to the threaded sleeve 48, converting the rotational motion of the motor into the horizontal linear motion of the threaded sleeve 48. The limiting member 47 slides in contact with the inner wall of the gantry frame 2. A guide rod is horizontally fixedly connected to the inner wall of the gantry frame 2. The guide rod horizontally passes through and slides on the inner wall of the limiting member 47 to ensure accurate movement direction and stability of the locking action. The base 41 is U-shaped, and the connecting seat 42 is I-shaped. The outer side of the locking cylinder 45 is made of rubber.

[0032] The working principle of this utility model is as follows: When the sliding suspended door 1 moves in the closing direction, the connecting piece 3 on the front side of the door 1 moves towards the gantry frame 2 in sync with the door 1. At this time, in the locking mechanism 4, the support rod 44, under the elastic force of the elastic element 46, drives the locking cylinder 45 to extend to both sides, and the rubber layer on the outer side of the locking cylinder 45 first contacts the connecting piece 3.

[0033] As the door 1 continues to move, the connector 3 pushes the locking cylinder 45, causing the support rod 44 to slide along the fixed post 43 toward the connecting seat 42. The elastic element 46 is compressed and stores elastic potential energy. During this process, the reaction force of the elastic element 46 always pushes the locking cylinder 45 to fit tightly against the connector 3. Even if the door 1 shakes slightly due to wind or micro-vibration, the support rod 44 can offset the gap through a small sliding, avoiding the "false lock" problem of traditional locks.

[0034] When the door 1 is fully closed, the drive assembly 49 is activated: the drive motor 491 drives the threaded rod 492 to rotate, and the threaded sleeve 48 moves along the threaded rod 492 axially towards the locking cylinder 45 under the action of threaded transmission, simultaneously driving the lower limiting member 47 to move horizontally. The U-shaped structure at the bottom of the limiting member 47 gradually engages with the outer side of the locking cylinder 45, forming a rigid limit; at the same time, the limiting member 47 slides along the guide rod on the inner wall of the gantry frame 2 to ensure accurate movement trajectory and avoid deviation. Finally, the elastic force of the elastic member 46 and the rigid limit of the limiting member 47 form a double lock, making the connecting member 3 firmly engaged with the locking mechanism 4, and the door 1 is stably fixed.

[0035] When unlocking, the worker can remotely control or swipe a card to drive the motor 491 to reverse, and the threaded rod 492 will drive the threaded sleeve 48 and the limiting member 47 to move away from the locking cylinder 45. The U-shaped structure of the limiting member 47 will disengage from the locking cylinder 45 and release the rigid limit.

[0036] The door 1 moves in the opening direction, the connector 3 disengages from the locking cylinder 45, and the support rod 44 slides outward along the fixed post 43 under the elastic force of the elastic member 46, driving the locking cylinder 45 to return to the initial extended state, preparing for the next locking.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sliding suspended door locking structure, characterized in that: include A gantry frame (2) is used to support the locking structure. A protective cover (5) is fixedly installed on the upper part of the gantry frame (2) by bolts. A door body (1) is provided on the rear side of the gantry frame (2). A connector (3) is fixedly installed on the front side of the door body (1). The locking mechanism (4) is used to engage with the connector (3). The locking mechanism (4) includes a base (41), which is fixedly connected to the outer wall of the gantry frame (2). A connecting seat (42) is fixedly connected to the upper part of the base (41). The connecting seat (42) has through slots on both the left and right sides. A fixing column (43) is fixedly connected to the inner wall of the through slot of the connecting seat (42). A support rod (44) is slidably connected to the outside of the fixing column (43). The support rod (44) and the connecting seat (42) are elastically connected through an elastic element (46). A locking cylinder (45) is rotatably connected to the outside of the support rod (44).

2. The sliding suspended door locking structure according to claim 1, characterized in that: The locking mechanism (4) further includes a drive assembly (49), the output end of which is connected to a threaded sleeve (48), and the lower part of the threaded sleeve (48) is fixedly connected to a limiting member (47), the outer side of which contacts the outer side of the locking cylinder (45).

3. The sliding suspended door locking structure according to claim 2, characterized in that: The lower part of the limiting member (47) is U-shaped, the rear side of the lower part of the limiting member (47) is an inclined surface, and the elastic member (46) is a compression spring.

4. The sliding suspended door locking structure according to claim 2, characterized in that: The drive assembly (49) includes a drive motor (491) and a threaded rod (492). The drive motor (491) is fixedly connected to the upper inner wall of the gantry (2). The protective cover (5) covers the upper part of the drive motor (491). The threaded rod (492) is fixedly connected to the output shaft of the drive motor (491). The threaded rod (492) is threadedly connected to the threaded sleeve (48).

5. The sliding suspended door locking structure according to claim 4, characterized in that: The limiting member (47) slides in contact with the inner wall of the gantry (2), and a guide rod is horizontally fixedly connected to the inner wall of the gantry (2). The guide rod horizontally passes through and slides on the inner wall of the limiting member (47).

6. The sliding suspended door locking structure according to claim 1, characterized in that: The base (41) is U-shaped and the connecting seat (42) is I-shaped.

7. The sliding suspended door locking structure according to claim 1, characterized in that: The outer side of the locking cylinder (45) is made of rubber.

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