Electromagnetic lock special for metro half-height platform door

Abstract

The utility model relates to an electromagnetic lock special for a metro half-height platform door, which comprises a shell, an inserting rod and a driving structure, the shell is of a cuboid cavity structure, and an inserting hole is formed in one end wall of the shell; the driving structure is installed in the cavity structure of the shell, one end of the inserting rod is connected with the driving structure, the other end of the inserting rod penetrates through the inserting hole, and the driving assembly can drive the inserting rod to move in the direction of the inserting hole; after electrification, the magnetic attraction assembly and the magnetic attraction block 6 are attracted, the magnetic attraction block drives the connecting rod connected with the magnetic attraction block to move along the limiting hole, and the connecting rod drives the inserting rod to move into the shell through the connecting block. Afterwards, after power failure, the magnetic attraction assembly is separated from the magnetic attraction block, and the insertion rod moves towards the outside of the shell under the action of the first spring. Due to the fact that the inserting rod, the connecting block, the connecting rod and the magnetic attraction block are all located on the same axis, the clamping stagnation problem existing in the prior art can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic locks, in particular to an electromagnetic lock dedicated to a semi-high platform door of a subway. Background Art

[0002] The electromagnetic lock for subway safety doors is an electric control lock used in subway safety door systems. The core part of subway safety doors is the sliding door body that opens and closes synchronously with the train door, and the reliability and life of the electromagnetic lock of the sliding door body directly affect the normal operation of the safety door. The electromagnetic lock currently used in subways has a non-coaxial lock column and armature, and uses the armature action to drive the linkage rod, which drives the upper and lower movements of the lock, which is prone to jamming problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a special electromagnetic lock for a subway semi-high platform door, which can solve the above problems in the prior art.

[0004] An electromagnetic lock for a semi-high platform door of a subway comprises a shell, a plug rod and a driving structure. The shell is a rectangular cavity structure and a plug hole is provided on one end wall. The driving structure is installed in the cavity structure of the shell. One end of the plug rod is connected to the driving structure and the other end is arranged through the plug hole. The plug rod can be driven to move along the direction of the plug hole by the driving component.

[0005] The driving structure includes a connecting component and a magnetic component, and the connecting component includes a connecting block, a first spring, a connecting rod, a magnetic block and a limit seat. The limit seat is installed in the cavity structure of the shell, and a limit hole is provided on the limit seat. The limit hole and the center of the circle of the socket are on the same straight line. One end of the connecting rod is connected to the connecting block, and the connecting block is connected to the plug rod. The other end of the connecting rod passes through the limit hole and is connected to the magnetic block. The first spring is installed on the connecting rod and is located between the connecting block and the limit seat. The magnetic component is installed on the side of the limit seat away from the socket, and after power is turned on, the magnetic component and the magnetic block are attracted.

[0006] Furthermore, the connection block is composed of a first connection block and a second connection block, the second connection block is connected to a connection rod, the first connection block is connected to an insertion rod, and a triangular groove is provided at the bottom of the first connection block.

[0007] Furthermore, it also includes a clamping assembly, which is installed in the shell cavity structure and arranged below the first connecting block, and the first connecting block can be clamped and fixed by the clamping assembly.

[0008] Furthermore, the clamping assembly includes a mounting seat, a slider, a second spring and a clamping rod. A groove body is provided in the mounting seat, and slideways are symmetrically provided on both sides of the groove body. Both ends of the slider move up and down along the slideways. The lower end of the clamping rod is connected to the slider, and the upper end of the clamping rod passes through the mounting seat and is clamped in the triangular groove body at the bottom of the connecting block. The bottom of the slider is connected to the mounting seat through a second spring.

[0009] Furthermore, the clamping assembly also includes an upper connecting column and a lower connecting column, which are fixedly mounted on the bottom of the slider and the mounting seat respectively, and the upper and lower ends of the second spring are respectively mounted on the upper connecting column and the lower connecting column.

[0010] Furthermore, the mounting seat is a rectangular frame structure.

[0011] Furthermore, ear frames are arranged at the four end corners of the mounting seat, and the ear frames are mounted in the shell through fasteners.

[0012] Furthermore, the magnetic attraction component includes a magnetic attraction shell and an electromagnetic lock coil installed in the magnetic attraction shell.

[0013] Furthermore, the top end of the clamping rod adopts a hemispherical end surface.

[0014] Furthermore, a certain distance is maintained between the lower end of the upper connecting column and the upper end of the lower connecting column, and the distance is greater than the depth of the triangular groove body.

[0015] The advantages and beneficial effects of the utility model are:

[0016] (1) After power is turned on, the magnetic attraction component and the magnetic attraction block 6 are attracted, and the magnetic attraction block drives the connecting rod connected to it to move along the limit hole, and the connecting rod drives the insertion rod to move into the shell through the connecting block; then, after power is turned off, the magnetic attraction component is separated from the magnetic attraction block, and under the action of the first spring, the insertion rod moves out of the shell. Since the insertion rod, the connecting block, the connecting rod and the magnetic attraction block are all on the same axis, the jamming problem existing in the prior art can be effectively avoided.

[0017] (2) The top end of the clamping rod preferably adopts a hemispherical end surface. When the magnetic block drives the connecting rod and the connecting block to move, the top end of the clamping rod can slide into the triangular groove body or slide out of the triangular groove body, thereby facilitating the clamping and fixing of the connecting block. In addition, the second spring, the slider and the slideway can be provided to facilitate the clamping of the clamping rod into the triangular groove body or slide out of the triangular groove body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an electromagnetic lock for a subway half-height platform door provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of an electromagnetic lock for a subway semi-high platform door according to the utility model;

[0020] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0021] Description of reference numerals:

[0022] Shell 1, plug rod 2, connecting block 3, first spring 4, connecting rod 5, magnetic block 6, limit seat 7, triangular groove body 8, mounting seat 9, slider 10, second spring 11, clamping rod 12, slideway 13, upper connecting column 14, ear frame 15, magnetic shell 16, lower connecting column 17, first connecting block 31, second connecting block 32. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] like Figure 1-Figure 3 As shown, a special electromagnetic lock for a subway half-height platform door comprises a shell 1, a plug rod 2 and a driving structure. The shell 1 is a rectangular cavity structure and a plug hole is opened on one end wall; the driving structure is installed in the cavity structure of the shell 1, one end of the plug rod 2 is connected to the driving structure, and the other end is arranged through the plug hole, and the plug rod 2 can be driven to move along the direction of the plug hole by the driving component;

[0026] The driving structure includes a connecting component and a magnetic component, and the connecting component includes a connecting block 3, a first spring 4, a connecting rod 5, a magnetic block 6 and a limit seat 7. The limit seat 7 is installed in the cavity structure of the shell 1. A limit hole is provided on the limit seat 7. The limit hole and the center of the jack are on the same straight line. One end of the connecting rod 5 is connected to the connecting block 3, and the connecting block 3 is connected to the plug rod 2. The other end of the connecting rod 5 passes through the limit hole and is connected to the magnetic block 6. The first spring 4 is installed on the connecting rod 5 and is located between the connecting block 3 and the limit seat 7. The magnetic component is installed on the side of the limit seat 7 away from the jack, and after power is turned on, the magnetic component and the magnetic block 6 are attracted.

[0027] In the above technical solution, after power is turned on, the magnetic attraction component and the magnetic attraction block 6 are attracted, and the magnetic attraction block drives the connecting rod connected thereto to move along the limit hole, and the connecting rod drives the insertion rod to move into the shell through the connecting block; after that, after power is turned off, the magnetic attraction component is separated from the magnetic attraction block, and under the action of the first spring, the insertion rod moves out of the shell. Since the insertion rod, the connecting block, the connecting rod and the magnetic attraction block are all on the same axis, the jamming problem existing in the prior art can be effectively avoided.

[0028] As a preferred embodiment of the above technical solution, the connecting block 3 is composed of a first connecting block 31 and a second connecting block 32, the second connecting block is connected to the connecting rod 5, the first connecting block is connected to the plug rod 2, and a triangular groove body 8 is provided at the bottom of the first connecting block.

[0029] As a preferred embodiment of the above technical solution, it also includes a clamping assembly, which is installed in the cavity structure of the shell 1 and is arranged below the first connecting block, and the first connecting block can be clamped and fixed by the clamping assembly.

[0030] As a preferred embodiment of the above technical solution, the clamping assembly includes a mounting seat 9, a slider 10, a second spring 11 and a clamping rod 12. A groove body is provided in the mounting seat 9, and slideways 13 are symmetrically provided on both sides of the groove body. Both ends of the slider 10 move up and down along the slideways 13. The lower end of the clamping rod 12 is connected to the slider 10, and the upper end of the clamping rod 12 passes through the mounting seat 9 and is clamped in the triangular groove body 8 at the bottom of the connecting block. The bottom of the slider 10 is connected to the mounting seat 9 through the second spring 11.

[0031] In the above technical solution, the top end of the clamping rod preferably adopts a hemispherical end surface. When the magnetic block drives the connecting rod and the connecting block to move, the top end of the clamping rod can slide into the triangular groove body or slide out of the triangular groove body, thereby facilitating the clamping and fixing of the connecting block. In addition, the second spring, the slider and the slideway can be provided to facilitate the clamping of the clamping rod into the triangular groove body or slide out of the triangular groove body.

[0032] As a preferred embodiment of the above technical solution, the clamping assembly also includes an upper connecting column 14 and a lower connecting column 17, and the upper connecting column 14 and the lower connecting column 17 are respectively fixedly installed on the bottom of the slider and the mounting seat, and the upper and lower ends of the second spring 11 are respectively installed on the upper connecting column 14 and the lower connecting column 17.

[0033] In the above technical solution, if Figure 3 As shown, the upper end of the upper connecting column 14 is installed on the bottom of the slider, and the lower end of the lower connecting column 17 is installed at a position opposite to the mounting seat and the bottom of the slider. At the same time, the two ends of the second spring are respectively sleeved and fixed on the upper connecting column and the lower connecting column. In addition, the lower end of the upper connecting column maintains a certain distance from the upper end of the lower connecting column, and the distance is greater than the depth of the triangular groove body.

[0034] As a preferred embodiment of the above technical solution, the mounting seat 9 is a rectangular parallelepiped frame structure.

[0035] As a preferred embodiment of the above technical solution, ear brackets 15 are provided at the four end corners of the mounting seat 9, and the ear brackets are installed in the shell through fasteners.

[0036] As a preferred embodiment of the above technical solution, the magnetic attraction component includes a magnetic attraction shell 16 and an electromagnetic lock coil installed in the magnetic attraction shell 16 .

[0037] The working principle of the utility model is as follows:

[0038] like Figure 2 As shown, after power is turned on, the magnetic attraction component and the magnetic attraction block 6 are attracted, and the magnetic attraction block drives the connecting rod connected to it to move along the limit hole, and the connecting rod drives the insertion rod to move into the shell through the connecting block; then, after power is turned off, the magnetic attraction component is separated from the magnetic attraction block, and under the action of the first spring, the insertion rod moves out of the shell. Since the insertion rod, the connecting block, the connecting rod and the magnetic attraction block are all on the same axis, the jamming problem existing in the prior art can be effectively avoided.

[0039] like Figure 3 As shown, the top end of the clamping rod preferably adopts a hemispherical end surface. When the magnetic block drives the connecting rod and the connecting block to move, the top end of the clamping rod can slide into the triangular groove body or slide out of the triangular groove body, thereby facilitating the clamping and fixing of the connecting block. In addition, the second spring, the slider and the slideway can be provided to facilitate the clamping of the clamping rod into the triangular groove body or slide out of the triangular groove body.

[0040] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A special electromagnetic lock for subway half-height platform doors. Features: The invention comprises a shell (1), an insertion rod (2) and a driving structure, wherein the shell (1) is a rectangular cavity structure and a plug hole is provided on one end wall; the driving structure is installed in the cavity structure of the shell (1); one end of the insertion rod (2) is connected to the driving structure and the other end passes through the plug hole, and the insertion rod (2) can be driven to move along the direction of the plug hole by the driving component; The driving structure comprises a connecting component and a magnetic attraction component, wherein the connecting component comprises a connecting block (3), a first spring (4), a connecting rod (5), a magnetic attraction block (6) and a limiting seat (7), wherein the limiting seat (7) is installed in a cavity structure of the shell (1), wherein a limiting hole is provided on the limiting seat (7), wherein the limiting hole and the center of the plug hole are on the same straight line, wherein one end of the connecting rod (5) is connected to the connecting block (3), wherein the connecting block (3) is connected to the plug rod (2), wherein the other end of the connecting rod (5) passes through the limiting hole and is connected to the magnetic attraction block (6), wherein the first spring (4) is installed on the connecting rod (5) and is located between the connecting block (3) and the limiting seat (7), wherein the magnetic attraction component is installed on a side of the limiting seat (7) away from the plug hole, and when power is turned on, the magnetic attraction component is attracted to the magnetic attraction block (6).

2. A special electromagnetic lock for a subway half-height platform door according to claim 1, Features: The connecting block (3) is composed of a first connecting block (31) and a second connecting block (32), wherein the second connecting block (32) is connected to a connecting rod (5), and the first connecting block (31) is connected to an insert rod (2), and a triangular groove body (8) is provided at the bottom of the first connecting block.

3. The electromagnetic lock for a subway half-height platform door according to claim 2, Features: It also includes a clamping assembly, which is installed in the cavity structure of the housing (1) and is arranged below the first connecting block (31), and the first connecting block (31) can be clamped and fixed by the clamping assembly.

4. The electromagnetic lock for a subway half-height platform door according to claim 3, Features: The clamping assembly comprises a mounting seat (9), a slider (10), a second spring (11) and a clamping rod (12); a groove body is provided in the mounting seat (9); slideways (13) are symmetrically provided on both sides of the groove body; two ends of the slider (10) move up and down along the slideways (13); the lower end of the clamping rod (12) is connected to the slider (10); the upper end of the clamping rod (12) passes through the mounting seat (9) and is clamped in a triangular groove body (8) at the bottom of the connecting block; the bottom of the slider (10) is connected to the mounting seat (9) via the second spring (11).

5. The electromagnetic lock for a subway half-height platform door according to claim 4, Features: The clamping assembly also includes an upper connecting column (14) and a lower connecting column (17), wherein the upper connecting column (14) and the lower connecting column (17) are respectively fixedly mounted on the bottom of the slider (10) and the mounting seat (9), and the upper and lower ends of the second spring (11) are respectively mounted on the upper connecting column (14) and the lower connecting column (17).

6. The electromagnetic lock for a subway half-height platform door according to claim 4, Features: The mounting seat (9) is a rectangular parallelepiped frame structure.

7. The electromagnetic lock for a subway half-height platform door according to claim 4, Features: Ear frames (15) are arranged at the four end corners of the mounting seat (9), and the ear frames (15) are mounted in the housing (1) via fasteners.

8. The electromagnetic lock for a subway half-height platform door according to claim 1, Features: The magnetic attraction component comprises a magnetic attraction shell (16) and an electromagnetic lock coil installed in the magnetic attraction shell (16).

9. The electromagnetic lock for a subway half-height platform door according to claim 4, Features: The top end of the clamping rod (12) adopts a hemispherical end surface.

10. The electromagnetic lock for a subway half-height platform door according to claim 5, Features: The lower end of the upper connecting column (14) and the upper end of the lower connecting column (17) maintain a certain distance, and the distance is greater than the depth of the triangular groove body (8).

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