Maintenance door lock mechanism of subway turnstile

Abstract

The utility model belongs to the technical field of subway turnstile maintenance, and particularly relates to a maintenance door lock mechanism of a subway turnstile, which comprises a lock body, a spring bolt is arranged on one side of the lock body, a guide column is arranged on the same side of one end, far away from the lock body, of the spring bolt and the lock body, and a pressing cap is slidably sleeved at one end, far away from the spring bolt, of the guide column. Belleville springs are arranged on the outer sides, close to the lock tongues, of the guide columns in a sleeving The pressing cap can make contact with and press an equipment frame, the problem of shaking caused by the fact that locking cannot be achieved due to gaps is avoided, or the problem that locking cannot be achieved due to the fact that locking cannot be achieved due to interference with the frame is avoided, and meanwhile when the pressing cap presses the frame and is squeezed by the frame, the pressing cap can compress the belleville spring towards the spring bolt within the gap range, and locking cannot be achieved. After the belleville spring is compressed, the belleville spring pushes the pressing cap in the reverse direction, even if the spring bolt slightly deforms, the belleville spring can press the pressing cap to be tightly attached to the frame, deformation of the spring bolt is compensated, and the maintenance door is kept stable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of subway gate maintenance, and particularly relates to a maintenance door lock mechanism of subway gate. BACKGROUND

[0002] At present, the lock applied on the maintenance door of subway gate is a tongue lock (or a rotary tongue lock), and the operation method is to insert a key, rotate the key clockwise, drive the lock tongue in the lock body to rotate, realize the opening of the maintenance door, and rotate the key counterclockwise to realize the locking of the maintenance door.

[0003] Due to the cumulative error in the processing, welding and assembly of sheet metal parts, the position of the lock tongue cannot be adjusted after being fixed on the lock body, so that there is a certain gap between the lock tongue and the equipment frame after the final product is assembled, the lock tongue is not locked tightly, and the maintenance door shakes; or the lock tongue and the equipment frame interfere with each other and cannot be rotated to be locked. Even if the lock tongue is normally locked, the lock tongue and the equipment frame are in rigid contact, and the lock tongue will deform slightly during work and long-term use, causing the maintenance door to shake and the equipment to produce abnormal noise. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims to provide a maintenance door lock mechanism of subway gate, which solves the problem that the position of the lock tongue cannot be adjusted after being fixed on the lock body due to the cumulative error in the processing, welding and assembly of sheet metal parts, so that there is a certain gap between the lock tongue and the equipment frame after the final product is assembled, the lock tongue is not locked tightly, and the maintenance door shakes; or the lock tongue and the equipment frame interfere with each other and cannot be rotated to be locked. Even if the lock tongue is normally locked, the lock tongue and the equipment frame are in rigid contact, and the lock tongue will deform slightly during work and long-term use, causing the maintenance door to shake and the equipment to produce abnormal noise.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a maintenance door lock mechanism of subway gate, comprising a lock body, a lock tongue is arranged on one side of the lock body, a guide column is arranged on the same side of the lock body away from the lock tongue, a compression cap is slidably connected to the end of the guide column away from the lock tongue, a butterfly spring is arranged on the outside of the guide column close to the lock tongue, a recess is formed in the center of the end of the compression cap away from the guide column, a screw is arranged in the inside of the recess, the screw is threadedly connected to the compression cap and the guide column, the compression cap is in pressure connection with the butterfly spring, and a gasket is arranged between the compression cap and the butterfly spring.

[0006] The utility model discloses beneficial effect for: can be to a certain extent, adjust the end position of pressure cap, so that the end position of pressure cap can be adjusted according to the accumulated error when installing on the cabinet door, compensate this part of error, make pressure cap can contact and compress the equipment frame, avoid the problem of appearing gap and unable to lock and lead to shaking, or avoid the problem of interference with the frame and lead to stuck and unable to lock, when pressure cap compresses the frame, is extruded by the frame, and pressure cap will compress the butterfly spring in the gap range to the lock tongue, and the butterfly spring will push the pressure cap reversely after compression, even when the lock tongue slightly deforms, the butterfly spring also will press the pressure cap and keep stable to the frame, make the maintenance door.

[0007] In order to avoid the screw from contacting the equipment frame beyond the groove;

[0008] As a further improvement of the above technical solution: the end of the screw does not exceed the groove.

[0009] The beneficial effect of the improvement is that the end of the screw is kept a certain distance from the edge of the end face of the groove, which can avoid the screw from contacting the equipment frame beyond the groove when the pressure cap compresses the butterfly spring.

[0010] In order to disassemble and replace the guide column;

[0011] As a further improvement of the above technical solution: the side of the lock tongue away from the guide column is provided with a bolt, and the bolt is threaded through the lock tongue and connected with the guide column.

[0012] The beneficial effect of the improvement is that the bolt can be unscrewed to disassemble and replace the guide column.

[0013] In order to increase the stability of the connection between the guide column and the lock tongue;

[0014] As a further improvement of the above technical solution: the lock tongue is provided with a clamping groove near the guide column, and the end of the guide column is inserted and clamped in the clamping groove.

[0015] The beneficial effect of the improvement is that the guide column cannot rotate relative to the lock tongue, and the stability of the connection between the guide column and the lock tongue is increased.

[0016] In order to reduce the friction noise between the pressure cap and the equipment frame;

[0017] As a further improvement of the above technical solution: a plastic sleeve is provided on the outside of one end of the pressure cap near the groove.

[0018] The beneficial effect of the improvement is that the plastic sleeve not only covers the groove and protects the screw, but also forms a protective layer on the contact surface between the pressure cap and the equipment frame, reducing the friction noise between the pressure cap and the equipment frame.

[0019] In order to increase the stability of the butterfly spring and the gasket.

[0020] As a further improvement of the above technical solution: the outer circumferential surface of the guide column near one end of the lock tongue is provided with a ring groove, and the butterfly spring and the gasket are sleeved on the outer circumferential surface of the guide column at the ring groove.

[0021] The improved beneficial effect is that the butterfly spring and the gasket are sleeved on the ring groove and can be clamped by the guide column, so that even if the screw is loosened by accident and the pressure cap is detached, the butterfly spring and the gasket will not be separated from the guide column, thereby increasing the stability of the butterfly spring and the gasket.

[0022] In order to make the pressure cap rotate smoothly to the surface of the equipment frame;

[0023] As a further improvement of the above technical solution: the edge of the pressure cap away from the guide column is a rounded arc surface.

[0024] The improved beneficial effect is that when the lock tongue rotates, the rounded arc surface of the pressure cap can act as a transition surface to make the pressure cap rotate smoothly to the surface of the equipment frame.

[0025] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure of the utility model Figure One ;

[0027] Figure 2 Structure of the utility model Figure Two ;

[0028] Figure 3 Structure of the utility model

[0029] Figure 4 Structure of the utility model

[0030] In the figure: 1, lock body; 2, lock tongue; 3, guide column; 4, pressure cap; 5, butterfly spring; 6, groove; 7, screw; 8, bolt; 9, clamping groove; 10, plastic sleeve; 11, ring groove; 12, gasket. DETAILED DESCRIPTION

[0031] In order to make the skilled in the art better understand the technical solutions of the present application, the present application will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0032] As Figure 1 — Figure 4The utility model discloses a subway gate maintenance door lock mechanism, including the lock body 1, one side of lock body 1 is provided with the lock tongue 2, the lock tongue 2 far from the one end of lock body 1 with the lock body 1 side is provided with the guide column 3, the guide column 3 far from the one end of lock tongue 2 is slid and is connected with the pressure cap 4 of sleeve, the outside of guide column 3 is close to the sleeve of lock tongue 2 and is provided with the butterfly spring 5, the one end of pressure cap 4 far from guide column 3 is provided with the recess 6 in the center, the inside of recess 6 is provided with screw 7, and screw 7 is connected with the guide column 3 of screwing through pressure cap 4, and pressure cap 4 is pressed with butterfly spring 5, and the gasket 12 is arranged between pressure cap 4 and butterfly spring 5, can adjust the end position of pressure cap 4 to a certain extent, so that the end position of pressure cap 4 can be adjusted according to the cumulative error when installing on the cabinet door, to compensate this part of error, make pressure cap 4 can contact and compress the equipment frame, avoid the problem of unable to lock and lead to shaking, or avoid the problem of interference with the frame and lead to jamming and unable to lock, when pressure cap 4 compresses the frame, is extruded by the frame, and pressure cap 4 can compress butterfly spring 5 to lock tongue 2 within the gap range, and butterfly spring 5 is compressed and can push pressure cap 4 in reverse, even when the lock tongue 2 slightly deforms, butterfly spring 5 also can press pressure cap 4 and stick to the frame, compensate the deformation of lock tongue 2, make the maintenance door keep stable, the end of screw 7 does not exceed recess 6, and the end of screw 7 keeps a certain distance from the end face edge of recess 6, can avoid when pressure cap 4 compresses butterfly spring 5, and screw 7 exceeds recess 6 and contacts the equipment frame, one side of lock tongue 2 far from guide column 3 is provided with the bolt 8, and the bolt 8 is connected with the guide column 3 of screwing through lock tongue 2, and when screwing off bolt 8, can dismantle and replace guide column 3, lock tongue 2 is close to the guide column 3 and is provided with the clamping groove 9, and the end of guide column 3 is inserted and is connected with the clamping groove 9, so that guide column 3 does not rotate relative to lock tongue 2, increases the stability of the connection of guide column 3 and lock tongue 2, the one end of pressure cap 4 is close to the outside sleeve of recess 6 and is provided with plastic sleeve 10, and the plastic sleeve 10 is arranged, not only can cover recess 6 and cover and protect screw 7, but also can form protection between the contact surface of pressure cap 4 and the equipment frame, reduce the friction noise between pressure cap 4 and the equipment frame, the end of guide column 3 is close to the outer circumferential surface of lock tongue 2 and is provided with ring groove 11, and the butterfly spring 5 and the gasket 12 are all sleeved in the outer circumferences of guide column 3 at ring groove 11, and the butterfly spring 5 and the gasket 12 are sleeved in ring groove 11, can be clamped by guide column 3, even if screw 7 is loosened accidentally, and leads to the falling of pressure cap 4, and the butterfly spring 5 and the gasket 12 also will not separate from guide column 3, are used for the stability of butterfly spring 5 and the gasket 12, the one end edge of pressure cap 4 far from guide column 3 is rounded arc surface, when lock tongue 2 rotates, the rounded arc surface of pressure cap 4 can act as a transition surface, make pressure cap 4 rotate smoothly to the surface of equipment frame.

[0033] The working principle and use process of the utility model are as follows:

[0034] In use, when the pressure cap 4 just contacts the butterfly spring 5, the guide column 3 is in an incomplete insertion state with the pressure cap 4, that is, there is a gap between the end of the guide column 3 and the inside of the pressure cap 4, and the screw 7 is screwed in. As the screw 7 is gradually tightened, the pressure cap 4 will gradually compress the butterfly spring 5, and the gap between the end of the guide column 3 and the inside of the pressure cap 4 will also become smaller and smaller. By adjusting the tightness of the adjusting screw 7, the position of the end of the pressure cap 4 can be adjusted to a certain extent, so that the position of the end of the pressure cap 4 can be adjusted according to the accumulated error during installation on the cabinet door, to compensate for this part of the error, so that the pressure cap 4 can contact and compress the equipment frame, avoiding the problem of shaking caused by the gap unable to be locked, or avoiding the problem of being stuck caused by interference with the frame, so that the door cannot be locked. At the same time, when the pressure cap 4 is compressed against the frame, the pressure cap 4 will be compressed against the frame within the gap, and the butterfly spring 5 will be compressed against the frame within the gap. When the butterfly spring 5 is compressed, it will push the pressure cap 4 in the opposite direction. Even when the lock tongue 2 is slightly deformed, the butterfly spring 5 will push the pressure cap 4 to tightly contact the frame, compensating for the deformation of the lock tongue 2, so that the maintenance door remains stable. In addition, the end of the screw 7 does not protrude beyond the groove 6, and the end of the screw 7 is kept a certain distance from the edge of the end surface of the groove 6, so that when the pressure cap 4 compresses the butterfly spring 5, the screw 7 does not protrude beyond the groove 6 and contact the equipment frame. In addition, the lock tongue 2 is provided with a bolt 8 away from the guide column 3, the bolt 8 penetrates the lock tongue 2 and is threadedly connected with the guide column 3, and the bolt 8 can be unscrewed to disassemble and replace the guide column 3. In addition, the lock tongue 2 is provided with a clamping groove 9 close to the guide column 3, the end of the guide column 3 is inserted and clamped in the clamping groove 9, so that the guide column 3 cannot rotate relative to the lock tongue 2, increasing the stability of the connection between the guide column 3 and the lock tongue 2. In addition, a plastic sleeve 10 is provided, which not only covers the groove 6 and protects the screw 7, but also forms a protective layer between the pressure cap 4 and the equipment frame, reducing the friction noise between the pressure cap 4 and the equipment frame. In addition, the end of the guide column 3 close to the lock tongue 2 is provided with a ring groove 11 on the outer circumferential surface, and the butterfly spring 5 and the gasket 12 are sleeved on the outer circumferential surface of the guide column 3 at the ring groove 11. The butterfly spring 5 and the gasket 12 are sleeved on the guide column 3 at the ring groove 11, so that they can be clamped by the guide column 3. Even if the screw 7 is loosened and the pressure cap 4 falls off, the butterfly spring 5 and the gasket 12 will not fall off from the guide column 3, which is used to stabilize the butterfly spring 5 and the gasket 12. In addition, the end of the pressure cap 4 away from the guide column 3 is a rounded arc surface, and when the lock tongue 2 rotates, the rounded arc surface of the pressure cap 4 can act as a transition surface to smoothly rotate the pressure cap 4 to the surface of the equipment frame.

[0035] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be pointed out that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A maintenance door lock mechanism of a subway gate, characterized by: The utility model provides a lock body (1) is provided with a lock tongue (2) on one side, the lock tongue (2) is provided with a guide column (3) on the same side of the one end away from the lock body (1), the guide column (3) is provided with a pressing cap (4) on the one end away from the lock tongue (2) and is slidably sleeved, the outside of the guide column (3) is provided with a butterfly spring (5) on the side close to the lock tongue (2), the one end away from the guide column (3) of the pressing cap (4) is provided with a recess (6) in the center, the inside of the recess (6) is provided with a screw (7), the screw (7) is screwed with the guide column (3) through the pressing cap (4), the pressing cap (4) is pressed with the butterfly spring (5), and the pressing cap (4) and the butterfly spring (5) are provided with a gasket (12) between.

2. The maintenance door lock mechanism of a subway gate according to claim 1, characterized in that: The end of the screw (7) does not exceed the recess (6).

3. The maintenance door lock mechanism of a subway gate according to claim 1, wherein: The lock tongue (2) is provided with a bolt (8) on the side away from the guide column (3), and the bolt (8) is screwed with the guide column (3) through the lock tongue (2).

4. The maintenance door lock mechanism of a subway gate according to claim 1, wherein: The lock tongue (2) is provided with a clamping groove (9) close to the guide column (3), and the end of the guide column (3) is inserted and clamped with the clamping groove (9).

5. The maintenance door lock mechanism of a subway gate according to claim 1, wherein: The one end edge of the pressing cap (4) away from the guide column (3) is a round angle arc surface.

6. The maintenance door lock mechanism of a subway gate according to claim 1, wherein: The guide column (3) is provided with a ring groove (11) on the outer circumferential surface of the one end close to the lock tongue (2), and the butterfly spring (5) and the gasket (12) are sleeved on the outer circumferential surface of the guide column (3) at the ring groove (11).

7. The maintenance door lock mechanism of a subway gate according to claim 1, wherein: The pressing cap (4) is provided with a plastic sleeve (10) on the outside of the one end close to the recess (6).

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