High-stability box door locking mechanism

Abstract

The utility model provides a high-stability box door locking mechanism which comprises a positioning mechanism detachably arranged on the corresponding side wall of a box body. The locking piece is in threaded connection with a box door penetrating through the positioning mechanism, one end of the locking piece corresponds to the side wall of the box body, a mounting hole is formed in the other end of the locking piece in a penetrating mode, and the locking piece is used for clockwise screwing to one end to abut against the box door or anticlockwise screwing to be separated from the box door; the anti-loosening mechanism comprises a balance weight lever movably arranged in the mounting hole in a penetrating mode, a balance weight piece and a limiting piece are detachably arranged at the two ends of the balance weight lever respectively, the width of the balance weight piece is larger than that of the mounting hole, and when the locking piece is screwed clockwise to one end to abut against the box door, the balance weight lever is vertically arranged or deflects from the vertical direction to the anticlockwise direction by an acute angle A; the balance weight rod moves downwards to the limiting piece to abut against the locking piece, and the balance weight piece is arranged below the locking piece in a suspended mode. Rotation of the locking piece is limited through the weight of the balance weight rod and the weight of the balance weight piece, so that the locking piece cannot rotate to be separated from the box door when the box door is bumped greatly, and the locking piece can stably lock and abut against the outer wall of the box door.

Description

Technical Field

[0001] The utility model relates to the field of locking mechanisms, in particular to a high-stability box door locking mechanism. Background Art

[0002] Mobile garbage compressors are mainly installed on garbage trucks to collect, compress and then transfer garbage. For the convenience of maintenance, a maintenance door with a single-side hinge is provided on the side wall of the garbage compressor box. During garbage transfer, the maintenance door needs to be closed and locked by a locking mechanism to prevent leakage of internal garbage, sewage, etc.

[0003] The existing locking mechanism mainly uses the screw-thread fit between the screw and the threaded hole to lock the maintenance door. Among them, the screw is screwed and locked into the threaded hole through structures such as a handwheel. However, during the operation of the garbage truck, the garbage compressor will be subject to large bumps, which may cause the screw to rotate and loosen by itself, resulting in a reduction in the locking strength of the locking mechanism for the maintenance door or even failure, and the situation that garbage or sewage seeps out from the gap between the maintenance door and the box body, causing secondary pollution.

[0004] Designing a high-stability box door locking mechanism to solve the problems existing in the above-mentioned prior art is the purpose of the research of the present utility model. Summary of the Utility Model

[0005] In view of the problems existing in the above-mentioned prior art, the present utility model provides a high-stability box door locking mechanism, which can effectively solve the problems existing in the above-mentioned prior art.

[0006] The technical solution of the present utility model is as follows:

[0007] A high-stability box door locking mechanism includes:

[0008] A positioning mechanism, which is detachably arranged on the corresponding side wall of the box body;

[0009] A locking member, which is screwed through the positioning mechanism and one end corresponds to the box door on the side wall of the box body. An installation hole is provided through the other end of the locking member. The locking member is used to be screwed clockwise until one end abuts against the box door or screwed counterclockwise until it disengages from the box door;

[0010] An anti-loosening mechanism, including a counterweight rod movably inserted into the installation hole. Counterweight members and limiting members with widths greater than the installation hole are respectively detachably arranged at both ends of the counterweight rod. When the locking member is screwed clockwise until one end abuts against the box door, the counterweight rod is vertically arranged or is deflected by an acute angle A from the vertical direction towards the counterclockwise direction. When the counterweight rod moves down until the limiting member abuts against the locking member and the counterweight member is suspended below the locking member.

[0011] Further, the positioning mechanism includes a positioning member detachably disposed on the side wall of the box body and corresponding to the box door. A limiting groove is recessed on one side of the positioning member facing the box door. A multi-sided nut is fixedly disposed in the limiting groove, with two parallel sides thereof limiting and abutting against the two inner walls of the limiting groove. A threaded hole is provided inside the multi-sided nut. A positioning hole communicating with the threaded hole is penetratingly provided on the positioning member. One end of the locking member is a screw rod portion screwed through the threaded hole through the positioning hole, and the other end is an installation portion penetratingly provided with the installation hole.

[0012] Further, the counterweight member and the limiting member are respectively screwed to the limiting nut and the counterweight nut of the counterweight rod. The total weight G of the counterweight rod, the counterweight member and the limiting member is ≥ 0.4 kg, and the acute angle A of yaw is ≤ 30°.

[0013] Further, a support block is convexly and fixedly provided on the lower part of the side of the positioning member away from the box door. Fixed rings are fixedly provided on the side wall of the box body and located on the upper and lower sides of the box door. The upper and lower ends of the positioning member are respectively inserted into the corresponding fixed rings, and the support block is limited and abutted against the lower fixed ring.

[0014] Further, the positioning member is provided as a U-shaped groove plate with an opening facing the box door. A plurality of first reinforcing ribs are horizontally and fixedly provided in the limiting groove and located on the upper and lower sides of the multi-sided nut respectively.

[0015] Further, one end of the box door is hinged to the box body. A sealing rubber strip corresponding to the inner side of the box door is fixedly provided on the box body. An abutting frame corresponding to the limiting groove is fixedly provided on the outer side of the other end of the box door. A second reinforcing rib perpendicular to the box door is fixedly provided in the middle of the abutting frame. When the locking member is screwed clockwise until one end abuts tightly against the box door, it is coaxially corresponding to the second reinforcing rib.

[0016] Therefore, the present utility model provides the following effects and / or advantages:

[0017] 1. When the locking member is spiraled clockwise to one end to tightly press against the box door, the counterweight rod is vertically arranged or is arranged with an acute angle A of counterclockwise deflection from the vertical direction. The counterweight rod moves downward until the limiting member abuts against the locking member, and the counterweight is suspended below the locking member. Thus, the overall center of gravity is lowered by moving the counterweight rod downward, and the rotation of the locking member is restricted by the weights of the counterweight rod and the counterweight, so that during the operation of the box body on the garbage truck, when subjected to large bumps, the locking member will not rotate by itself and disengage from the box door. The locking member can stably lock and press against the outer wall of the box door, preventing the locking member from loosening due to self-rotation caused by bumps, and further preventing the locking strength of the locking mechanism for the maintenance door from decreasing or even failing, resulting in the leakage of garbage or sewage from the gap between the maintenance door and the box body, causing secondary pollution. This greatly improves the overall stability of the locking mechanism for locking the box door. Moreover, arranging the counterweight rod vertically or with an acute angle A of counterclockwise deflection from the vertical direction makes the gravity direction of the counterweight rod perpendicular or obtuse to the counterclockwise spiral direction of the locking member, so that the counterweight rod can stably achieve the effect of restricting the self-rotation of the locking member. At the same time, the counterweight rod will not swing excessively upward after being bumped, resulting in the failure of the restriction, improving the stability of restricting the self-rotation of the locking member by the self-weight of the counterweight rod after being bumped.

[0018] 2. Through the limiting setting of the parallel sides of the multi-sided nut by the limiting groove in this application, the situation where the multi-sided nut rotates by itself under force and causes the locking member to loosen can be avoided. By limiting the self-rotation of the multi-sided nut and the locking member through the limiting groove and the anti-loosening mechanism respectively, the locking stability of the locking member is further improved, and the stability of the locking mechanism is further enhanced. At the same time, the locking member composed of the positioning member and the multi-sided nut reduces the manufacturing cost and the installation cost.

[0019] 3. Preferably, the total weight G of the counterweight rod and the counterweight is 0.4 kg. The counterweight rod is vertically arranged and perpendicular to the locking member. Thus, the vertical arrangement can prevent the counterweight rod from swinging upward after being bumped. Therefore, setting the total weight G to the minimum value can achieve the effect of restricting the self-rotation of the locking member and disengaging from the box door. The low-weight counterweight rod is convenient for the staff to operate and reduces the manufacturing cost.

[0020] 4. Through the addition of the abutting frame in this application, the point force at the abutting position of the locking member is dispersed and conducted to the box door, so that the other end of the box door is uniformly stressed and not easily damaged. And through the addition of the second reinforcing rib, the structural strength of the abutting frame is improved, and at the same time, the dispersion and uniformity of the point force of the abutting frame are increased, further improving the uniformity of the force on the other end of the box door, and extending the service life of the box door on the premise of locking the box door by the locking mechanism.

[0021] It should be understood that the above summary and the following detailed description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the present invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic three-dimensional structure diagram of a high-stability box door locking mechanism.

[0023] Figure 2 It is Figure 1 Schematic side view structure diagram of

[0024] Figure 3 It is Figure 3 Schematic diagram of the partial sectional view at A-A in , where the multi-angle nut and the anti-loosening mechanism are not sectioned.

[0025] Figure 4 It is Figure 3 Schematic structure diagram of the anti-loosening mechanism, the locking member and the multi-angle nut in .

[0026] Figure 5 Schematic side view structure diagram of another embodiment. Detailed implementation manners

[0027] For the convenience of those skilled in the art to understand, the embodiments will now be combined with the accompanying drawings to further describe the structure of the present utility model in detail:

[0028] Referring to Figures 1-5 , a high-stability box door locking mechanism includes:

[0029] A positioning mechanism 1, detachably arranged on the side wall of the corresponding box body 4; specifically, the box body 4 is the box body 4 of a garbage compressor, and the garbage compressor is integrally installed on the corresponding garbage truck;

[0030] A locking member 2, screwed through the positioning mechanism 1 and one end corresponding to the box door 41 on the side wall of the box body 4. An installation hole 221 is provided through the other end of the locking member 2. The locking member 2 is used to be screwed clockwise until one end abuts against the box door 41 or screwed counterclockwise until it disengages from the box door 41;

[0031] An anti-loosening mechanism 3, including a counterweight rod 31 movably inserted into the installation hole 221. Counterweight members 311 and limit members 312 with widths greater than the installation hole 221 are respectively detachably provided at both ends of the counterweight rod 31. When the locking member 2 is screwed clockwise until one end abuts against the box door 41, the counterweight rod 31 is vertically arranged or is deflected by an acute angle A counterclockwise from the vertical direction. When the counterweight rod 31 moves down until the limit member 312 abuts against the locking member 2 and the counterweight member 311 is suspended below the locking member 2.

[0032] With the above structure, when the locking member 2 is spiraled clockwise to the end to tightly press against the cabinet door 41, the overall center of gravity is lowered by moving the counterweight rod 31 downward, so as to limit the self-rotation of the locking member 2 by the weights of the counterweight rod 31 and the counterweight 311. During the operation of the cabinet body 4 on the garbage truck, when subjected to large bumps, the locking member 2 will not rotate on its own and separate from the cabinet door 41. The locking member 2 can stably lock and press against the outer wall of the cabinet door 41, preventing the locking member 2 from loosening due to self-rotation caused by bumps, thereby avoiding the reduction or even failure of the locking strength of the locking mechanism on the maintenance door, and preventing the leakage of garbage or sewage from the gap between the maintenance door and the cabinet body 4, which may cause secondary pollution. This greatly improves the overall locking stability of the locking mechanism on the cabinet door 41. Moreover, the counterweight rod 3 is vertically arranged or is arranged with an acute angle A deflected counterclockwise from the vertical direction, so that the gravity direction of the counterweight rod 3 forms a right angle or an obtuse angle with the counterclockwise spiral direction of the locking member 2, enabling the counterweight rod 3 to stably achieve the effect of restricting the self-rotation of the locking member 2. At the same time, after being subjected to bumps, the counterweight rod 3 will not swing upward excessively, resulting in the failure of the restriction, improving the stability of restricting the self-rotation of the locking member 2 after being subjected to bumps by the self-weight of the counterweight rod 3.

[0033] In order to further improve the stability of the locking mechanism, the positioning mechanism 1 includes a positioning member 11 detachably arranged on the side wall of the cabinet body 4 and corresponding to the cabinet door 41. A limiting groove 111 is recessed on the side of the positioning member 11 facing the cabinet door 41. A multi-sided nut 12 that is parallel-sided and limits and abuts against the two inner walls of the limiting groove 111 is fixedly arranged in the limiting groove 111. A threaded hole is arranged inside the multi-sided nut 12, and a positioning hole 112 communicating with the threaded hole is penetrated through the positioning member 11. One end of the locking member 2 is a screw rod portion 21 that is screwed through the threaded hole through the positioning hole 112, and the other end is an installation portion 22 provided with the installation hole 221. Specifically, the multi-sided nut 12 is fixedly arranged in the middle of the positioning member 11, and the multi-sided nut 12 can be a hexagonal nut, an octagonal nut, etc. Thus, through the limiting setting of the two parallel sides of the multi-sided nut 12 by the limiting groove 111, the situation where the multi-sided nut 12 rotates on its own under force and causes the locking member 2 to loosen can be avoided. By respectively limiting the self-rotation of the multi-sided nut 12 and the locking member 2 through the limiting groove 111 and the anti-loosening mechanism 3, the locking stability of the locking member 2 is further improved, and the stability of the locking mechanism is further improved. At the same time, the locking member 2 is formed by the positioning member 11 and the multi-sided nut 12, reducing the manufacturing cost and installation cost.

[0034] Specifically, the counterweight member 311 and the limiting member 312 are respectively screwed to the limiting nut and the counterweight nut of the counterweight rod 31. The total weight G of the counterweight rod 31 and the counterweight member 311 is G≥0.4 kg, and the acute yaw angle A≤30°, so as to ensure that the counterweight rod 31 will not swing upward after being jolted. The total weight G gradually increases as the acute yaw angle A increases. Thus, on the premise of ensuring that the counterweight rod 31 will not swing upward after being jolted within a certain range of the acute yaw angle A, the total weight G of the counterweight rod 31 and the counterweight member 311 is minimized to reduce the manufacturing cost and operation difficulty. Preferably, in this embodiment, the total weight G = 0.4 kg, and the counterweight rod 31 is vertically arranged and perpendicular to the locking member 2. Thus, by arranging it vertically, it can be avoided that the counterweight rod 31 swings upward after being jolted. Therefore, setting the total weight G to the minimum value can achieve the effect of restricting the locking member 2 from rotating and disengaging from the door 41. The low-weight counterweight rod 31 is convenient for the staff to operate and reduces the manufacturing cost.

[0035] In another embodiment, the counterweight rod 31 is arranged with an acute yaw angle A deviating counterclockwise from the vertical direction, and the total weight G>0.4 kg, so as to prevent the anti-loosening mechanism 3 from swinging upward after being jolted and causing the restriction on the locking member 2 to fail.

[0036] To improve the disassembly and assembly convenience and structural strength of the positioning member 11, the positioning member 11 is set as a U-shaped groove plate with an opening facing the door 41. Specifically, the positioning member 11 is made of a high-strength bending plate. A support block 113 is fixedly protruded from the lower part of the side of the positioning member 11 away from the door 41. Fixed rings 42 are fixedly arranged on the side wall of the box body 4 on the upper and lower sides of the door 41. The upper and lower ends of the positioning member 11 are respectively inserted into the corresponding fixed rings 42, and the support block 113 is limited and abutted against the lower fixed ring 42. A plurality of first reinforcing ribs 114 are horizontally fixed in the limiting groove 111 and are respectively located on the upper and lower sides of the multi-angle nut 12. Specifically, when the door 41 needs to be opened, the locking member 2 is rotated by the anti-loosening mechanism 3 to disengage from the door 41 and then lifted upward, so as to lift the positioning mechanism 1 and remove its lower end from the lower fixed ring 42; the number of the first reinforcing ribs 114 is set to two and is symmetrically located on the upper and lower sides of the multi-angle nut 12. In other embodiments, the number of the first reinforcing ribs 114 can be adjusted according to specific circumstances. Thus, the disassembly and assembly convenience of the positioning member 11 is improved through the cooperation of the fixed ring 42 and the support block 113. At the same time, the structural strength of the limiting groove 111 is improved by adding the first reinforcing ribs 114, and it is avoided that the two side walls of the limiting groove 111 are deformed after being subjected to the abutting force of the multi-angle nut 12, resulting in the failure of the limit.

[0037] To improve the structural strength of the cabinet door 41, one end of the cabinet door 41 is hinged to the cabinet body 4. A sealing strip 43 corresponding to the inner side of the cabinet door 41 is fixedly provided on the cabinet body 4. An abutting frame 411 corresponding to the limiting groove 111 is fixedly provided on the outer side of the other end of the cabinet door 41. A second reinforcing rib 412 perpendicular to the cabinet door 41 is fixedly provided in the middle of the abutting frame 411. When the locking member 2 is screwed clockwise to one end to tightly abut against the cabinet door 41, it is coaxially corresponding to the second reinforcing rib 412. Through the addition of the abutting frame 411, the point force at the abutting position of the locking member 2 is dispersed and conducted to the cabinet door 41, so that the other end of the cabinet door 41 is uniformly stressed and not easily damaged. Through the addition of the second reinforcing rib 412, the structural strength of the abutting frame 411 is improved, and at the same time, the dispersion and uniformity of the point force of the abutting frame 411 are increased, further improving the uniformity of the force on the other side of the cabinet door 41, and extending the service life of the cabinet door 41 on the premise of locking the cabinet door 41 through the locking mechanism.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high stability door locking mechanism, characterized in that: include: A positioning mechanism (1) is detachably mounted on a corresponding side wall of the box body (4); A locking member (2) is screwed through the positioning mechanism (1) and one end of which corresponds to a box door (41) on the side wall of the box body (4); the other end of the locking member (2) is provided with a mounting hole (221); the locking member (2) is used to be screwed clockwise until one end is pressed against the box door (41) or to be screwed counterclockwise until it is detached from the box door (41); The anti-loosening mechanism (3) comprises a counterweight rod (31) movably inserted into the mounting hole (221), and the two ends of the counterweight rod (31) are respectively detachably provided with a counterweight piece (311) and a limit piece (312) having a width greater than the mounting hole (221). When the locking piece (2) is screwed clockwise until one end presses against the box door (41), the counterweight rod (31) is vertically arranged or tilted from the vertical to the counterclockwise direction at an acute angle A, and the counterweight rod (31) moves downward to the limit piece (312) to abut against the locking piece (2), and the counterweight piece (311) is suspended below the locking piece (2).

2. A high stability door locking mechanism as claimed in claim 1, characterized in that: The positioning mechanism (1) comprises a positioning member (11) which is detachably arranged on the side wall of the box body (4) and corresponds to the box door (41); a limiting groove (111) is recessed on one side of the positioning member (11) facing the box door (41); a polygonal nut (12) with two parallel sides limiting and abutting against two inner walls of the limiting groove (111) is fixed in the limiting groove (111); a threaded hole is arranged on the inner side of the polygonal nut (12); a positioning hole (112) communicating with the threaded hole is penetrated on the positioning member (11); one end of the locking member (2) is a screw portion (21) threadedly connected to the threaded hole through the positioning hole (112); and the other end is a mounting portion (22) penetrated by the mounting hole (221).

3. A high stability door locking mechanism as claimed in claim 1, characterized in that: The counterweight piece (311) and the limiting piece (312) are respectively screwed to the limiting nut and the counterweight nut of the counterweight rod (31); the total weight G of the counterweight rod (31) and the counterweight piece (311) is ≥ 0.4 kg, and the acute deflection angle A is ≤ 30°.

4. A high stability door locking mechanism as claimed in claim 2, characterized in that: A support block (113) is fixedly provided on a lower protrusion of a side of the positioning member (11) away from the box door (41); a fixing ring (42) is fixedly provided on the side wall of the box body (4) and is located on the upper and lower sides of the box door (41); the upper and lower ends of the positioning member (11) are respectively inserted into the corresponding fixing ring (42) and the support block (113) is limitedly abutted against the fixing ring (42) on the lower side.

5. A high stability door locking mechanism as claimed in claim 2, characterized in that: The positioning member (11) is configured as a U-shaped groove plate with its opening facing the box door (41), and a plurality of first reinforcing ribs (114) are transversely fixed in the limiting groove (111) and are respectively located on the upper and lower sides of the polygonal nut (12).

6. A high stability door locking mechanism as claimed in claim 2, characterized in that: One end of the box door (41) is hinged to the box body (4); a sealing strip (43) corresponding to the inner side of the box door (41) is fixedly provided on the box body (4); an abutment frame (411) corresponding to the limiting groove (111) is fixedly provided on the outer side of the other end of the box door (41); a second reinforcing rib (412) perpendicular to the box door (41) is fixedly provided in the middle of the abutment frame (411); when the locking member (2) is screwed clockwise until one end presses against the box door (41), it is coaxially corresponding to the second reinforcing rib (412).

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