A kind of livestock shed safety door lock

Abstract

The utility model discloses a livestock shed safety door lock, which belongs to the technical field of door locks, and comprises a lock box, wherein the outer wall of the lock box is fixedly connected to a fence frame, and the outer wall of the fence frame is hinged with a shed door, and the outer wall of the fence frame is fixedly connected to a stop plate. When the utility model opens the door, a person pulls the handle to cause the lock tongue to retract and enter the lock box, and the lock box is free from the restriction on the shed door, so that the shed door can be opened, and the lock tongue enters the lock box. When the limiting groove is located above the sleeve, the sleeve is restored by the elastic force of a third spring to rise and enter the limiting groove, thereby limiting the position of the lock tongue in the lock box and preventing the lock tongue from protruding out of the lock box. When the door needs to be closed, the shed door is pressed against the stop plate, which causes the pressure strip to retract. The retraction of the pressure strip drives the sleeve to move downward and leave the limiting groove, and the elastic force of the second spring is restored to cause the lock tongue to protrude out of the lock box to limit the shed door on the surface of the stop plate. Manual door closing is unnecessary, and the operation is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of door locks, and in particular relates to a safety door lock for a livestock pen. Background Art

[0002] Large-scale livestock farming has become the main model of livestock farming. Facilities have provided convenience for livestock farming. Fences and pens are the main breeding places for large and medium-sized livestock, especially dairy cows, beef cattle, horses, small livestock deer, sheep, etc. The fences are mostly metal fences. The door locks (bolts) are mostly simple vertical or horizontal latches to lock the door. Some are tied with wire and ropes, which are unsafe and not strong. Horizontal door locks (bolts) are easy to cause scratches when people or livestock enter and exit, making it very inconvenient to clean up manure and turn over livestock. In addition, livestock have a certain memory, and they rub against the door of the house and shake the door, making it easy for the old-style door locks (bolts) and binding ropes to be opened by livestock, causing livestock to escape, damage fences and other facilities, cause livestock trauma, miscarriage of pregnant livestock, stealing concentrated feed and causing disease losses, etc.

[0003] After searching, the Chinese patent application number is: 202223186205.2, which discloses a livestock shed safety door lock, including a fence and a shed door, the fence is fixed to the ground through a fence post and ground piles, the fixed end of the shed door is installed on the fence through a hinge, and a door lock is installed between the fence and the opening and closing end of the shed door, characterized in that: the door lock includes a lock box installed on the fence and a plug box installed on the shed door, the positions of the lock box and the plug box correspond to each other, a slide groove is provided on the inner bottom of the lock box, a rack is slidably connected to the slide groove, a gear is meshed and connected to the rack, the gear is connected to a rotating shaft through a key, and both ends of the rotating shaft are connected to the side wall of the lock box through bearings, one end of the rotating shaft extends out of the side wall of the lock box and is fixedly connected to a handle, a lock tongue is fixedly connected to a side of the rack close to the plug box, and a tongue cavity matching the lock tongue is provided at one end of the plug box close to the lock box. The shed door has the following problems: the handle needs to be manually turned to close the shed door, and it cannot be closed automatically, and the operation is cumbersome. Utility Model Content

[0004] The utility model provides a livestock shed safety door lock, aiming to solve the problem in the prior art that the shed door needs to be closed manually by turning a handle, and cannot be closed automatically, resulting in cumbersome operation.

[0005] The utility model is implemented as follows: a livestock shed safety door lock, characterized in that it includes a lock box, the outer wall of the lock box is fixedly connected to a fence frame, and the outer wall of the fence frame is hinged with a shed door, the outer wall of the fence frame is fixedly connected to a stop plate, the outer wall of the stop plate is slidably connected to a pressure strip, and the outer wall of the fence frame is fixedly connected to the lock box, the inner wall of the lock box is slidably connected to a lock tongue, the inner wall of the lock box is fixedly connected to a second spring, and the second spring is located between the lock box and the lock tongue, the interior of the fence frame is fixedly connected to a low rod, and the outer wall of the low rod is slidably connected to a sleeve, the inner wall of the sleeve is fixedly connected to a third spring, and the third spring is located between the low rod and the sleeve, the lower surface of the lock tongue is provided with a limiting groove matching the sleeve, and the sleeve is fixedly connected to the pressure strip, the outer wall of the lock box is slidably connected to a connecting rod, and the outer wall of the connecting rod is fixedly connected to a handle.

[0006] Preferably, a rubber pad is fixedly connected to the outer wall of the handle.

[0007] Preferably, a first spring is fixedly connected to the lower surface of the pressure strip.

[0008] Preferably, the outer wall of the locking tongue is provided with a guiding inclined platform.

[0009] Preferably, two lock boxes are provided.

[0010] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0011] When opening the door, the person pulls the handle to retract the lock tongue into the lock box, and the lock box is free from the restriction on the house door, so that the house door can be opened. The lock tongue enters the lock box. When the limiting groove is located above the sleeve, the elastic force of the third spring is restored to make the sleeve rise and enter the limiting groove, thereby limiting the position of the lock tongue in the lock box and preventing the lock tongue from protruding out of the lock box. When the door needs to be closed, the house door is pressed against the stop plate, which will cause the pressure strip to retract. The retraction of the pressure strip will drive the sleeve to move downward and leave the limiting groove, and the elastic force of the second spring is restored to make the lock tongue protrude out of the lock box to limit the house door on the surface of the stop plate. There is no need to close the door manually, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a front cross-sectional structural diagram of the lock box of the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the casing of the utility model;

[0015] In the figure: 1. fence frame; 2. house door; 3. stop plate; 4. pressure strip; 5. first spring; 6. lock box; 7. lock tongue; 8. second spring; 9. low rod; 10. sleeve; 11. third spring; 12. limit groove; 13. guide tilting platform; 14. connecting rod; 15. handle. DETAILED DESCRIPTION

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] The utility model embodiment provides a livestock shed safety door lock, such as Figure 1-3 As shown, it includes a lock box 6, the outer wall of the lock box 6 is fixedly connected to the fence frame 1, and the outer wall of the fence frame 1 is hinged with a house door 2, the outer wall of the fence frame 1 is fixedly connected to a stop plate 3, the outer wall of the stop plate 3 is slidably connected to a pressure strip 4, and the outer wall of the fence frame 1 is fixedly connected to the lock box 6, the inner wall of the lock box 6 is slidably connected to a lock tongue 7, the inner wall of the lock box 6 is fixedly connected to a second spring 8, and the second spring 8 is located between the lock box 6 and the lock tongue 7, the inside of the fence frame 1 is fixedly connected to a low rod 9, and the outer wall of the low rod 9 is slidably connected to a sleeve 10, the inner wall of the sleeve 10 is fixedly connected to a third spring 11, and the third spring 11 is located between the low rod 9 and the sleeve 10, the lower surface of the lock tongue 7 is provided with a limiting groove 12 matching the sleeve 10, and the sleeve 10 is fixedly connected to the pressure strip 4, the outer wall of the lock box 6 is slidably connected to a connecting rod 14, and the outer wall of the connecting rod 14 is fixedly connected to a handle 15.

[0019] It should be noted that, since the prior art requires manual rotation of the handle to close the door, and it cannot be closed automatically, the operation is cumbersome. Therefore, in order to solve the problem that the prior art requires manual rotation of the handle to close the door, and it cannot be closed automatically, the operation is cumbersome, when opening the door, the staff pulls the handle 15 to retract the lock tongue 7 into the lock box 6, and the lock box 6 is free from the restriction on the door 2, so that the door 2 can be opened, and the lock tongue 7 enters the lock box 6. When the limit groove 12 is located above the sleeve 10, the door 2 can be opened. The elastic force of the third spring 11 is restored, so that the sleeve 10 rises and enters the limiting groove 12, thereby limiting the position of the lock tongue 7 in the lock box 6 and preventing the lock tongue 7 from protruding out of the lock box 6. When the door needs to be closed, the door 2 is pressed against the stop plate 3, which will cause the pressure strip 4 to retract. The retraction of the pressure strip 4 will drive the sleeve 10 to move downward and leave the limiting groove 12. The elastic force of the second spring 8 is restored, so that the lock tongue 7 protrudes out of the lock box 6 to limit the door 2 on the surface of the stop plate 3. There is no need to close the door manually, and the operation is simple.

[0020] In a further preferred embodiment of the present invention, Figure 1 As shown, a rubber pad is fixedly connected to the outer wall of the handle 15 .

[0021] In this embodiment, the rubber pad improves the softness of the outer wall of the handle 15 and improves the comfort of the operator when operating the handle 15.

[0022] In a further preferred embodiment of the present invention, Figure 2 As shown, a first spring 5 is fixedly connected to the lower surface of the pressing strip 4 .

[0023] In this embodiment, the restoring ability of the pressing strip 4 is ensured by the first spring 5 .

[0024] In a further preferred embodiment of the present invention, Figure 2 As shown, the outer wall of the locking tongue 7 is provided with a guide inclined platform 13 .

[0025] In a further preferred embodiment of the present invention, Figure 1 As shown, two lock boxes 6 are provided.

[0026] In this embodiment, the two lock boxes 6 improve the safety and stability when the door 2 is closed.

[0027] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0028] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0029] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A livestock shed safety door lock, characterized in that: The invention comprises a lock box (6), the outer wall of the lock box (6) is fixedly connected to a fence frame (1), and the outer wall of the fence frame (1) is hinged with a door (2), the outer wall of the fence frame (1) is fixedly connected to a stop plate (3), the outer wall of the stop plate (3) is slidably connected to a pressure strip (4), and the outer wall of the fence frame (1) is fixedly connected to the lock box (6), the inner wall of the lock box (6) is slidably connected to a lock tongue (7), the inner wall of the lock box (6) is fixedly connected to a second spring (8), and the second spring (8) is located between the lock box (6) and the lock tongue (7), and the fence frame A low rod (9) is fixedly connected to the interior of the lock box (1), and a sleeve (10) is slidably connected to the outer wall of the low rod (9), a third spring (11) is fixedly connected to the inner wall of the sleeve (10), and the third spring (11) is located between the low rod (9) and the sleeve (10), a limiting groove (12) matching the sleeve (10) is formed on the lower surface of the lock tongue (7), and the sleeve (10) is fixedly connected to the pressing strip (4), and a connecting rod (14) is slidably connected to the outer wall of the lock box (6), and a handle (15) is fixedly connected to the outer wall of the connecting rod (14).

2. A livestock house safety door lock as claimed in claim 1, characterized in that: A rubber pad is fixedly connected to the outer wall of the handle (15).

3. A livestock house safety door lock as claimed in claim 1, characterized in that: A first spring (5) is fixedly connected to the lower surface of the pressing strip (4).

4. A livestock house safety door lock as claimed in claim 1, characterized in that: The outer wall of the locking tongue (7) is provided with a guide tilting platform (13).

5. A livestock house safety door lock as claimed in claim 1, characterized in that: Two lock boxes (6) are provided.

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