CN216185116U - Locking device and floor lock mounting structure - Google Patents

Abstract

The utility model discloses a locking device and a floor lock mounting structure, which comprise a shell and a rotary lock tongue arranged in the shell, and are characterized by also comprising a lock catch, an inner guide cylinder, an outer guide cylinder, a first return spring, a second return spring, a button switch and a base; the button switch is connected with the inner guide cylinder, the inner guide cylinder is fixed on the base through the first return spring, and the inner guide cylinder is sleeved in the outer guide cylinder and can slide up and down on the inner cylinder wall of the outer guide cylinder; the lower end of the inner guide cylinder is provided with a plurality of first helical teeth, and the lower end of the outer guide cylinder is provided with a plurality of second helical teeth; the lock catch is rotatably arranged on the base, a second return spring is arranged between the lock catch and the base, a plurality of third helical teeth are arranged at the upper end of the lock catch, and the third helical teeth can be matched with the first helical teeth and the second helical teeth respectively; the peripheral edge of hasp is equipped with the spring bolt of interval distribution.

Description

Locking device and floor lock mounting structure

Technical Field

The utility model relates to the field of rail transit vehicle accessories, in particular to a locking device and a floor lock mounting structure.

Background

The ground of the underframe in the locomotive cab and the machine shop needs to be provided with pipelines, electric wires and various equipment installation frameworks, and usually, a floor is erected above the ground of the underframe for the crew to safely walk and play a role in protecting the pipelines and the lines on the ground of the underframe.

The floor and the bottom surface of the underframe are fixed through a floor lock, and the traditional square floor lock needs to be unlocked and locked by a special key. In the daily maintenance and overhaul process of the locomotive, the floor is often required to be lifted, and as a floor lock used in the locomotive, the floor is only required to be fixed, so that the problems of safety, theft prevention and the like of the floor lock do not exist, and under the application scene, the traditional floor lock needing a special key to be unlocked is inconvenient and has an improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough, and provides a locking device and a floor lock mounting structure.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a locking device comprises a shell and a base, and is characterized by further comprising a lock catch, an inner guide cylinder, an outer guide cylinder, a first return spring, a second return spring and a button switch;

the button switch is connected with the inner guide cylinder, the inner guide cylinder is fixed on the base through the first return spring, and the inner guide cylinder is sleeved in the outer guide cylinder and can slide up and down on the inner cylinder wall of the outer guide cylinder;

the lower end of the inner guide cylinder is provided with a plurality of first helical teeth, and the lower end of the outer guide cylinder is provided with a plurality of second helical teeth;

the lock catch is rotatably arranged on the base, a second return spring is arranged between the lock catch and the base, a plurality of third helical teeth are arranged at the upper end of the lock catch, and the third helical teeth can be matched with the first helical teeth and the second helical teeth respectively;

the peripheral edge of hasp is equipped with the spring bolt of interval distribution.

The working principle of the utility model is as follows:

the inner guide cylinder is pushed by pressing the button switch to move downwards along the wall of the outer guide cylinder, after the inner guide cylinder is compressed to a certain degree, the first helical teeth of the inner guide cylinder are in contact with the third helical teeth of the lock catch, the lock catch is pushed to move downwards until the third helical teeth of the lock catch are separated from the second helical teeth of the outer guide cylinder, and the lock catch rotates at a certain angle under the action of radial component force. After the button switch is loosened, the lock catch resets under the action of the second reset spring, and as the lock catch rotates, the third helical tooth of the lock catch cannot reset along the original path but enters the next second helical tooth in the outer guide cylinder along the same trend until the third helical tooth and the second helical tooth of the outer guide cylinder reach a perfect meshing state again, and the inner guide cylinder and the button switch reset under the action of the first reset spring. Therefore, the rotary reset of the floor lock can be realized by pressing the button switch, and under the rotary action of the lock catch, the positions of the lock tongues distributed at intervals can be controlled to be in butt joint fit with the supporting seat on the floor, and the opening, closing and locking of the floor are realized under the combined action.

According to the embodiment of the utility model, the utility model can be further optimized, and the following is the technical scheme formed after optimization:

the inner side cylinder wall of the outer guide cylinder is provided with a guide groove, the outer side cylinder wall of the inner guide cylinder is provided with a guide convex groove, and the guide groove is matched with the guide convex groove.

The thickness of the third helical tooth is equal to the sum of the thicknesses of the first helical tooth and the second helical tooth.

The width of the second helical teeth is greater than the width of the third helical teeth.

First skewed tooth, second skewed tooth, third skewed tooth all have 4, 4 first skewed tooth evenly distributed is in the lower extreme of interior guide cylinder is peripheral, 4 second skewed tooth evenly distributed is in the lower extreme of outer guide cylinder is peripheral, 4 third skewed tooth evenly distributed is in the upper end of hasp is peripheral.

The spring bolt has 2, 2 the spring bolt symmetric distribution is in the peripheral edge of hasp.

The rigidity of the second return spring is greater than that of the first return spring.

Based on the same invention concept, the utility model further provides a floor lock mounting structure, which comprises the locking device, a corridor floor, an underframe floor and a supporting seat, wherein the supporting seat is fixed on the underframe floor, the locking device is arranged on the lower surface of the corridor floor, the corridor floor is in lap joint with the supporting seat, and a lock tongue of the locking device can be in butt joint with one end of the supporting seat.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can conveniently realize opening and closing only by pressing the button switch of the floor lock, brings convenience to operators, reduces the auxiliary time in the locomotive maintenance process and improves the locomotive maintenance efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting to the present invention.

Fig. 1 is a schematic structural view of an embodiment of the locking device of the present invention in an unlocked state.

Fig. 2 is a schematic structural view of an embodiment of the locking device of the present invention in a locked state.

Fig. 3 is an exploded view of an embodiment of the closure of the present invention.

Fig. 4 is a schematic structural view of an embodiment of the floor lock mounting structure of the present invention.

Fig. 5 is an installation diagram of an embodiment of the floor lock installation structure of the present invention.

Reference numerals:

1-locking; 2-an inner guide cylinder; 3-an outer guide cylinder; 4-a first return spring; 5-a second return spring; 6-a push-button switch; 7-a base; 8-first helical teeth; 9-second helical teeth; 10-third helical teeth; 11-a bolt; 12-corridor floor; 13-underframe floor; 14-a support base; 15-outer shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

At least one embodiment of the present invention provides a locking device, as shown in fig. 3, including a housing 15, a base 7, a lock catch 1, an inner guide cylinder 2, an outer guide cylinder 3, a first return spring 4, a second return spring 5, and a push switch 6; the button switch 6 is connected with the inner guide cylinder 2, the inner guide cylinder 2 is fixed on the base 7 through the first return spring 4, and the first return spring 4 provides supporting force for the return of the inner guide cylinder 2. The inner guide cylinder 2 is sleeved inside the outer guide cylinder 3, a guide groove is formed in the inner side cylinder wall of the outer guide cylinder 3, a guide convex groove is formed in the outer side cylinder wall of the inner guide cylinder 2, and the guide groove is matched with the guide convex groove, so that the inner guide cylinder 2 can slide up and down on the inner side cylinder wall of the outer guide cylinder 3.

The lower extreme of interior guide cylinder 2 is equipped with 4 first skewed teeth 8, the lower extreme of outer guide cylinder 3 is equipped with 4 second skewed teeth 9, is vertical distribution between the adjacent skewed tooth. The lock catch 1 is rotatably arranged on the base 7, a second return spring 5 is arranged between the lock catch 1 and the base 7, and the second return spring 5 provides supporting force for the reset of the lock catch 1. The upper end of the lock catch 1 is provided with 4 third helical teeth 10, and the third helical teeth 10 can be respectively matched with the first helical teeth 8 and the second helical teeth 9; the thickness of the third helical tooth 10 is equal to the sum of the thicknesses of the first helical tooth 8 and the second helical tooth 9. The width of the second helical teeth 9 is greater than the width of the third helical teeth 10. The peripheral edge of hasp 1 is equipped with interval distribution's spring bolt 11. The number of the lock tongues 11 is 2, and the 2 lock tongues 11 are symmetrically distributed on the peripheral edge of the lock catch 1.

Referring to fig. 1, when the locking device is in the unlocked state, the latch 11 is parallel to the two wings of the housing 15, and the third helical tooth 10 of the latch 1 is engaged with the second helical tooth 9 of the outer guide cylinder 3. The button switch 6 is pressed, the inner guide cylinder 2 is stressed to vertically move downwards, the first return spring 4 is compressed at the moment, after the compression is carried out to a certain degree, the first helical teeth 8 of the inner guide cylinder 2 are contacted with the third helical teeth 10 of the lock catch 1, and the lock catch 1 vertically moves downwards under the pushing of the inner guide cylinder 2 until the third helical teeth 10 are separated from the second helical teeth 9 of the outer guide cylinder 3. The contact of the third helical tooth 10 and the first helical tooth 8 of the inner guide cylinder can make the lock catch 1 receive a radial component force, at the moment that the lock catch 1 is separated from the contact with the outer guide cylinder 3, the lock catch 1 rotates at a certain angle under the action of the radial force, and after the button switch 6 is released, the lock catch 1 starts to reset under the action of the second reset spring 5. As the lock catch 1 rotates, the third helical tooth 10 cannot return along the original path, but enters the next third helical tooth 10 of the outer guide cylinder 3 along the same way until the next third helical tooth 10 and the second helical tooth 9 of the outer guide cylinder 3 reach the perfect meshing state again, and the inner guide cylinder 2 and the push-button switch 6 return under the action of the first return spring 4, at this time, the lock catch 1 has completed one rotation of 90 °, and the floor lock becomes the locking state as shown in fig. 2. Likewise, pressing the push button switch again will change the floor lock to the unlocked state.

The utility model also provides a floor lock mounting structure, as shown in fig. 4 and 5, the floor lock mounting structure further comprises a locking device, a corridor floor 12, an underframe floor 13 and a support seat 14, the support seat 14 is fixed on the underframe floor 13, the locking device is arranged on the lower surface of the corridor floor 12, the corridor floor 12 is lapped on the support seat 14, and a lock tongue 11 of the locking device can be connected with one end of the support seat 14 in an abutting mode.

Fig. 5 shows an overall view of the floor lock installation structure, in which the left-hand closure device is in the locked state, the locking tongue 11 of the closure device abuts against one end of the support base 14, and the left-hand side of the corridor floor 12 cannot be lifted. The locking device on the right in the figure is in the unlocked state, the locking tongue 11 of the locking device is parallel to the two wings of the housing and is not in contact with the supporting seat, and the right side of the corridor floor 12 can be conveniently lifted.

The locking device and the floor lock mounting structure can be conveniently opened and closed only by pressing the button switch of the floor lock, bring convenience to operators, reduce the auxiliary time in the locomotive maintenance process and improve the locomotive maintenance efficiency.

The foregoing examples are set forth to illustrate the present invention more clearly and are not to be construed as limiting the scope of the utility model, which is defined in the appended claims to which the utility model pertains, as modified in all equivalent forms, by those skilled in the art after reading the present invention.

Claims (8)

1. A locking device comprises a shell (15) and a base (7), and is characterized by further comprising a lock catch (1), an inner guide cylinder (2), an outer guide cylinder (3), a first return spring (4), a second return spring (5) and a button switch (6);

the button switch (6) is connected with the inner guide cylinder (2), the inner guide cylinder (2) is fixed on the base (7) through the first reset spring (4), and the inner guide cylinder (2) is sleeved in the outer guide cylinder (3) and can slide up and down on the inner side cylinder wall of the outer guide cylinder (3);

the lower end of the inner guide cylinder (2) is provided with a plurality of first helical teeth (8), and the lower end of the outer guide cylinder (3) is provided with a plurality of second helical teeth (9);

the lock catch (1) is rotatably arranged on the base (7), a second reset spring (5) is arranged between the lock catch (1) and the base (7), a plurality of third helical teeth (10) are arranged at the upper end of the lock catch (1), and the third helical teeth (10) can be respectively matched with the first helical teeth (8) and the second helical teeth (9);

the peripheral edge of hasp (1) is equipped with interval distribution's spring bolt (11).

2. The locking device according to claim 1, characterized in that the inner cylinder wall of the outer guide cylinder (3) is provided with a guide groove, and the outer cylinder wall of the inner guide cylinder (2) is provided with a guide groove, and the guide groove are matched.

3. A locking device according to claim 1, wherein the thickness of the third helical tooth (10) is equal to the sum of the thicknesses of the first (8) and second (9) helical teeth.

4. A locking device according to claim 1, characterized in that the width of the second helical teeth (9) is larger than the width of the third helical teeth (10).

5. The locking device according to claim 1, wherein the number of the first helical teeth (8), the second helical teeth (9) and the third helical teeth (10) is 4, 4 of the first helical teeth (8) are uniformly distributed on the lower peripheral edge of the inner guide cylinder (2), 4 of the second helical teeth (9) are uniformly distributed on the lower peripheral edge of the outer guide cylinder (3), and 4 of the third helical teeth (10) are uniformly distributed on the upper peripheral edge of the lock catch (1).

6. A closure assembly according to claim 1, wherein there are 2 locking tongues (11), and 2 locking tongues (11) are symmetrically arranged around the periphery of the shackle (1).

7. A locking device according to claim 1 wherein the stiffness of the second return spring (5) is greater than the stiffness of the first return spring (4).

8. A floor lock installation structure, characterized in that, includes the locking device according to any one of claims 1-6, and further includes a corridor floor (12), an underframe floor (13), and a support base (14), wherein the support base (14) is fixed on the underframe floor (13), the locking device is provided on the lower surface of the corridor floor (12), the corridor floor (12) is lapped on the support base (14), and the lock tongue (11) of the locking device can be connected with one end of the support base (14) in an abutting manner.

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