A new garbage can lock

Abstract

The present application relates to a new type of garbage can lock, which comprises a lock body, an unlocking handle arranged at one end of the lock body, and a lock catch; the unlocking handle comprises a lock cylinder and an unlocking link which is rotatably arranged on the lock body; the lock cylinder is movable between an abutting position and a disengaging position of the unlocking link, and rotation of the lock cylinder is limited when reaching the abutting position; the lock body comprises a lock tongue arranged opposite to the lock catch, a counterweight arranged at a locking position close to the lock tongue to push the lock tongue out of the lock body to abut with the lock catch, and the counterweight is slidable between the locking position and a disengaging position of the locking position; a transmission assembly is connected with the unlocking link and the counterweight to drive the counterweight to slide when the unlocking link rotates. The garbage can lock of the present application is simple and quick to unlock, easy to master, and can avoid the non-human opening of the can cover when the garbage can is tipped over, and can automatically open the can cover to improve the recycling efficiency when recycling garbage.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and more specifically to a novel trash can lock. Background Technology

[0002] To prevent trash from being directly exposed to the environment and to prevent the spread of odors, outdoor trash cans are usually equipped with lids. In addition, to facilitate trash disposal and recycling, the lids are usually designed as flip-tops. This type of lid is easy to open and close, and when the trash can is standing upright, it can flip over and close to the can by its own weight, thus sealing the trash inside the can.

[0003] Typically, flip-top outdoor trash cans are lockless. Because the lid can be easily opened, when the can is tilted by wind or other external forces, the resulting vibration can cause the lid to open without human control, and the trash inside will spill out, increasing the burden on sanitation workers. In particular, the spilled trash is easily spread to the surrounding area by wind, pedestrians touching it, or animals chewing on it, causing environmental pollution.

[0004] In response, some outdoor trash cans with locks have appeared on the market. The most typical are outdoor trash cans with padlocks and snap-lock trash cans with self-locking functions. Although outdoor trash cans with padlocks can solve the above problems, the process of unlocking and locking them is quite troublesome, which is not conducive to the quick disposal and recycling of trash. As for snap-lock trash cans with self-locking functions, their sealing performance is better than that of trash cans without locks. However, if they are tipped over, the lid can still be easily opened if it comes into a strong contact with an external object. Therefore, the sealing effect on the trash inside the can is not good. Summary of the Invention

[0005] In response to the above issues, and to overcome the problems of complex unlocking and locking operations of existing outdoor trash cans with padlocks, which hinder the rapid disposal and recycling of trash, and the easy opening of the lid of snap-on outdoor trash cans when emptying, this invention aims to provide a new type of trash can lock with a simple, quick, and easy-to-master unlocking method that can prevent the lid from being opened unintentionally when emptying the trash can, while automatically opening the lid when recycling trash to improve recycling efficiency.

[0006] To achieve the above objectives, the technical solution of the present invention is:

[0007] A novel trash can lock includes: a lock body disposed inside a trash can lid; an unlocking handle with one end disposed on the lock body and the other end extending outward through the trash can lid; and a latch disposed inside the trash can, which remains opposite to the lock body when the trash can lid is closed.

[0008] The unlocking handle includes: a lock cylinder; an unlocking link, which is rotatably mounted on the lock body, the lock cylinder being movable between a mating position and a dismounting position with the unlocking link, and its rotation being restricted when it reaches the mating position;

[0009] The lock body includes: a bolt, positioned relative to the latch; a counterweight, located in a locking position near the bolt to push the bolt out of the lock body and engage with the latch, and which can slide between the locking position and the unlocked position, and when unlocked, allows the bolt to move inward toward the lock body; and a transmission assembly, connected to both the unlocking linkage and the counterweight, to drive the counterweight to slide when the unlocking linkage rotates.

[0010] Preferably, the transmission assembly includes: a linkage hook plate, which is eccentrically rotatable and disposed in the lock body, and is perpendicular to the rotation axis of the unlocking linkage; a hook, the two ends of which are respectively attached to the unlocking linkage and the linkage hook plate, wherein a groove is provided on the counterweight block, and one end of the linkage hook plate is simultaneously engaged into the groove.

[0011] Preferably, the lock body further includes a compression spring, which is disposed between the bolt and the inner wall of the lock body. The bolt and the counterweight have respectively arc-shaped protrusions and cross-sections on their adjacent sides. When the counterweight is disengaged from the locked position, the compression spring can drive the bolt to move so that the protrusions reach below the cross-sections.

[0012] Preferably, the lock body further includes: at least one fixed guide member, which is disposed relative to the lock tongue and fixed to the inner wall of the lock body, wherein the lock tongue has a guide groove along its sliding direction and corresponding to the fixed guide member, so that the fixed guide member is inserted into the guide groove.

[0013] Preferably, the lock body further includes: a fixing member disposed above the bolt; a safety hook sleeved on the fixing member, with upper teeth formed on the side of the hook near the bolt; and a torsion spring sleeved on the fixing member, with one free end of the torsion spring disposed on the safety hook. The bolt has lower teeth on the side opposite to the upper teeth that can engage with them, and the bolt is also provided with a movable guide. The other free end of the torsion spring extends to the movable guide and abuts against it.

[0014] Preferably, the lock body also includes a magnet, which is disposed on one side of the counterweight to attract the counterweight.

[0015] Preferably, the side wall of the counterweight is provided with at least one horizontally extending limiting member, wherein the lock body further includes: a balance swing plate, which is provided on the inner wall of the lock body and can rotate about the connection position between it and the lock body, and the balance swing plate is provided with a limiting groove opposite to the limiting member and into which it can be inserted.

[0016] Preferably, the lock body further includes: an upper top plate, rotatably mounted below the counterweight and rotatably connected to the inner wall of the lock body; and a safety button, embedded below the upper top plate, to push the upper top plate to rotate when pressed.

[0017] Preferably, the unlocking handle includes: a base frame, which is sleeved on the unlocking linkage and attached to the lock body; a rotary cover, which is rotatably mounted on the base frame, wherein the lock cylinder is embedded in the rotary cover and is a key lock cylinder, and includes an integrated positioning card, and the unlocking linkage has a first slot for insertion when it is rotated.

[0018] Preferably, the unlocking handle includes: a base frame, which is sleeved on the unlocking linkage and attached to the lock body; a rotary cover, which is rotatably mounted on the base frame, wherein the lock cylinder is embedded in the rotary cover and is a push-button lock cylinder, and the unlocking linkage has a second slot for it to be inserted when sliding.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] When opening an outdoor trash can equipped with a lock using a technical solution, the lock cylinder must first be unlocked, and then the unlocking lever must be rotated. Therefore, whether the trash can lid can be opened depends on the control applied to the lock cylinder and the unlocking lever by the operator. Compared with existing trash cans without locks and snap-on trash cans, it has a better sealing effect on the trash inside, is safer and more environmentally friendly. At the same time, compared with the complex unlocking methods of some existing trash cans with padlocks and other locked trash cans, its unlocking method using its lock cylinder and unlocking lever is simpler, faster and easier to master.

[0021] The counterweight in the lock body allows the bolt to be pushed out of the lock body and engage with the latch when the trash can is placed upright on the ground or upside down, automatically locking the lid and locking the trash can. When the trash can is placed upside down in the garbage truck, the counterweight slides out of the locking position due to its own weight, and the bolt can be moved back into the lock body, thus automatically unlocking the trash can when it is upside down. This allows the trash to be poured directly into the garbage truck, shortening the garbage collection time and greatly improving the efficiency of garbage collection.

[0022] On the other hand, from the outside of the trash can, when the trash can lid is closed, only the unlocking handle is exposed outside the trash can lid, which increases the visual aesthetics of the trash can and can reduce the collision of the lock body and latch parts caused by the trash can being tipped over.

[0023] Therefore, the trash can lock of this technical solution can achieve the above-mentioned multiple advantages, and thus has broad market application prospects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is an exploded structural diagram from the first perspective of the present invention;

[0026] Figure 3 This is a cross-sectional structural diagram of the lock body in the front view of the present invention;

[0027] Figure 4 This is the present invention. Figure 3 A magnified structural diagram of part A;

[0028] Figure 5 This is an exploded structural diagram from the second perspective of the present invention;

[0029] Figure 6 This is a schematic diagram of the exploded structure from the third perspective of the present invention;

[0030] Figure 7 An exploded view of the unlocking handle with a key lock cylinder of the present invention;

[0031] Figure 8 An exploded view of the unlocking handle with a button lock cylinder of the present invention.

[0032] As shown in the figure: 10. Lock body; 101. Lock tongue; 101a. Protrusion; 101b. Guide groove; 101c. Lower tooth; 102. Counterweight; 102a. Slide groove; 102b. Cross-section; 103. Locking position; 104. Transmission assembly; 104a. Linkage hook; 104b. Hook; 105. Compression spring; 106. Fixed guide; 107. Fixing component; 108. Safety hook; 108a. Upper tooth; 109. 109a. Torsion spring; 110. Free end; 111. Movable guide; 112. Magnet; 113. Limiting element; 114. Balance swing plate; 115. Limiting groove; 116. Top plate; 117. Safety button; 20. Unlocking handle; 201. Lock cylinder; 201a. Positioning card; 202. Unlocking linkage; 202a. First slot; 202b. Second slot; 203. Base frame; 204. Screw cap; 30. Lock. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in when in use. They are only for the purpose of simplifying the description, and do not indicate or imply that the orientation is a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this invention.

[0035] like Figure 1 As shown, this invention improves upon existing trash can locks, providing a new type of trash can lock, specifically comprising:

[0036] The lock body 10 is located on the trash can lid, specifically inside the trash can lid;

[0037] The unlocking handle 20 has one end attached to the lock body 10 and the other end extending outward through the trash can lid;

[0038] The latch 30 is located inside the trash can, specifically in a position that is opposite to the lock body 10 after the trash can lid is closed.

[0039] From the outside of the trash can equipped with the trash can lock of this technical solution, when the trash can lid is closed, only the unlocking handle 20 is exposed outside the trash can lid, which increases the visual aesthetics of the trash can and can reduce the collision of the lock body 10 and the latch 30 due to the trash can being tipped over, which could lead to the lock body 10 and the latch 30 being displaced or damaged.

[0040] like Figure 2 and Figure 3 As shown, the unlocking handle 20 includes:

[0041] Lock cylinder 201, consistent with conventional locks with lock cylinder 201, is used by the operator to apply unlocking-locking control from the outside;

[0042] It should be noted that the following examples of lock cylinder 201 all refer to key lock cylinders;

[0043] The unlocking linkage 202 is rotatably mounted on the lock body 10 and connected to related components within the lock body 10. The lock cylinder 201 can move between a mating position and a dismounting position with the unlocking linkage 202. The lock cylinder 201 can reach the mating position by rotation or translation, allowing it to be configured in different ways. When it reaches the mating position, it restricts the rotation of the unlocking linkage 202, thus applying locking control to the operator and preventing the trash can lid from opening. When the lock cylinder 201 dismounts, it applies unlocking control to the operator, allowing the unlocking linkage 202 to rotate normally. This causes the "related components" inside the lock body 10 to move, completing the unlocking process. The operator can then open the trash can lid normally to dispose of or recycle trash. Therefore, whether the trash can lid can be opened depends on the control applied by the operator to the lock cylinder 201 and the unlocking linkage 202. Compared with existing trash cans without locks and snap-on trash cans, it has a better sealing effect on the trash inside the can, making it safer and more environmentally friendly. At the same time, compared with the complex unlocking methods of some existing trash cans with padlocks and other locked trash cans, its unlocking method through the lock cylinder 201 and the unlocking linkage 202 is simpler, faster, and easier to master.

[0044] The aforementioned "related components" included in the lock body 10 mainly include:

[0045] The latch 101 is positioned relative to the latch 30, and like traditional locks with a latch 101, it can move between the mating position with the latch 30 and the disengaging position. When it reaches the mating position with the latch 30, the trash can lid cannot be opened, but when it is disengaged, the trash can lid can be opened normally for trash disposal or recycling.

[0046] The counterweight 102 is located on the locking position 103 near the bolt 101. When the counterweight 102 is in the locking position 103, the space inside the lock body 10 for placing the bolt 101 is reduced, thereby pushing the bolt 101 to the outside of the lock body 10 to engage with the latch 30 and achieve locking. The counterweight 102 can slide between the locking position 103 and the position 103. When it is out of the locking position 103, it makes room for the entire bolt 101 to fully enter the lock body 10. At this time, it is no longer blocked by the counterweight 102, and the bolt 101 can move into the lock body 10 to achieve unlocking.

[0047] The transmission component 104 is connected to both the unlocking link 202 and the counterweight 102. After the operator applies the unlocking control to the lock cylinder 201, the unlocking link 202 is rotated. When the unlocking link 202 rotates, it drives the transmission component 104 to move, which in turn drives the counterweight 102 to slide, thereby achieving the above-mentioned unlocking.

[0048] It should be mentioned that the counterweight 102 has a relatively large mass, allowing it to slide between the locking position 103 and the unlocked position 103 under its own weight when the trash can is placed upright on the ground or upside down. When the trash can is in its upright position and the lid is closed, the counterweight 102 slides back into the locking position 103 under its own weight, pushing the latch 101 out of the lock body 10 and engaging with the latch 30, thus providing good blocking and automatically locking the trash can lid. The lid is locked, and during this process, the transmission component 104 is moved, which in turn drives the unlocking linkage 202 to rotate, allowing the operator to apply the next unlocking control. At the same time, when garbage is being collected, the garbage can is placed upside down in the garbage truck. The counterweight 102 slides out of the locking position 103 due to its own weight, and the locking tongue 101 can be moved back into the lock body 10, thereby realizing automatic unlocking of the garbage can in the upside-down state. This allows the garbage to be poured directly into the garbage truck, shortening the garbage collection time and greatly improving the efficiency of garbage collection.

[0049] like Figure 2 and Figure 3 As shown, further, the transmission assembly 104 as described above includes:

[0050] The linkage hook 104a is configured in the lock body 10 in an eccentrically rotatable manner, and is perpendicular to the rotation axis of the unlocking linkage 202.

[0051] The hook 104b has its two ends attached to the unlocking link 202 and the linkage hook piece 104a respectively. When the trash can is normally placed on the ground, the unlocking link 202 can rotate horizontally. When it rotates, it drives the hook 104b to rotate horizontally. At the same time, it drives the linkage hook piece 104a to rotate eccentrically in the vertical direction relative to the unlocking link 202.

[0052] The counterweight 102 has a sliding groove 102a. One end of the linkage hook 104a is simultaneously inserted into the sliding groove 102a, so that it can move along the sliding groove 102a when the linkage hook 104a rotates. When it abuts against the upper and lower inner walls of the sliding groove 102a, it starts to drive the counterweight slider to move, causing it to disengage from the locking position 103, thus achieving the above-mentioned unlocking.

[0053] In the above configuration, the linkage hook 104a and hook 104b constituting the transmission component 104 can not only directly drive the counterweight 102 to move through the rotation of the unlocking linkage 202 without the need for other external forces, but also have a simple overall structure, which reduces the manufacturing cost of the trash can lock in this technical solution.

[0054] like Figure 2 and Figure 3As shown, in a new embodiment, the lock body 10 further includes a compression spring 105, which is disposed between the bolt 101 and the inner wall of the lock body 10. The compression spring 105 enables the bolt 101 to automatically move back into the lock body 10 to achieve unlocking. Specifically, when the counterweight 102 is in the locked position 103, the bolt 101 is pushed outward into the lock body 10 while the compression spring 105 is gradually stretched. When the counterweight 102 is disengaged from the locked position 103, the space inside the lock body 10 that can accommodate the bolt 101 gradually increases, and the compression spring 105 returns to its original deformation and automatically drives the bolt 101 to move back into the lock body 10, thereby achieving unlocking.

[0055] like Figure 3 and Figure 4 As shown, the locking tongue 101 and the counterweight 102, which are close to each other, each have an outer arc-shaped edge.

[0056] When the counterweight 102 disengages from the locking position 103, the spring 105 returns to its original deformation, which can drive the locking tongue.

[0057] 101 moves back to below section 102b, at which point the locking tongue 101 is in the unlocked state. When the counterweight 102 slides down due to its own weight...

[0058] During the process, the section 102b first abuts against the protrusion 101a on the latch 101, at which point the protrusion 101a moves along the section 102b.

[0059] The counterweight 102 slides outwards from the lock body 10 until it is completely removed from below the cross-section 102b, allowing the counterweight 102 to slide further until...

[0060] Once fully locked at position 103, the bolt 101 engages with the locking plate again, completing the automatic locking process.

[0061] like Figure 3 As shown, in a new embodiment, the lock body 10 further includes:

[0062] At least one fixed guide member 106 is disposed opposite to the latch 101 and fixed to the inner wall of the lock body 10.

[0063] The latch 101 has a guide groove 101b along its sliding direction and corresponding to the fixed guide 106, so that the fixed guide 106 can be inserted into the guide groove 101b. Through the above settings, the sliding direction of the latch 101 is restricted, so that the latch 101 can always remain opposite to the latch 30.

[0064] like Figure 4 As shown, in a new embodiment, the lock body 10 further includes:

[0065] The fastener 107 is located above the latch 101;

[0066] Safety hook 108 is sleeved on fastener 107, and upper teeth 108a are formed on the side of it near the locking tongue 101;

[0067] A torsion spring 109 is sleeved on a fixing member 107, and one of its free ends 109a is provided on a safety hook 108;

[0068] The locking tongue 101 has a lower tooth 101c that can engage with the upper tooth 108a on one side, and the locking tongue 101 is also provided with a movable guide 110. The other free end 109a of the torsion spring 109 extends to the movable guide 110 and abuts against it.

[0069] When switching to the unlocked state, the spring 105 returns to its original deformation, pulling the spring 105 and causing the bolt 101 to move inward toward the lock body 10. The movable guide 110 moves synchronously with it, thereby automatically actuating the free end 109a of the torsion spring 109 that is opposed to it during the movement. At the same time, the torsion spring 109 rotates around the connection position with the fixing member 107, driving the safety hook 108 to rotate toward the bolt 101. After the bolt 101 stops moving, the upper teeth 108a of the safety hook 108 engage with the bolt 101. The lower teeth 101c of the locking tongue 101 engage, thereby locking the locking tongue 101 between itself and the counterweight 102, preventing the locking tongue 101 from sliding unrestrainedly, and the setting of the safety hook 108 does not prevent the locking tongue 101 from switching to the locked state. Specifically, the locking tongue 101 moves outward towards the lock body 10, and pushes the lower teeth 101c and the safety hook 108 engaged with it through the action of its lower teeth 101c, causing the safety hook 108 to rotate, and driving the torsion spring 109 to rotate during the rotation, thereby achieving reset.

[0070] like Figure 5 As shown, in a new embodiment, the lock body 10 further includes a magnet 111, which is disposed on one side of the counterweight 102 to attract the counterweight 102. Since the counterweight 102 has a large mass, it may slide within the lock body 10 when tilted, thus detaching from the locking position 103 and causing the trash can lid to open suddenly. The magnet 111 ensures that, except when the trash can is normally upright or inverted, the counterweight 102 cannot slide due to its own weight, preventing the trash can lid from being suddenly opened. Compared to existing unlocked and snap-on trash cans, which are easily opened by external force, especially when dumped, trash cans with locks in this technology are difficult to open by external force, requiring cleaning and increasing the burden on sanitation workers. Furthermore, the spilled trash is easily dispersed by wind, pedestrians, or animals, causing environmental pollution. Trash cans with locks in this technology are difficult to open by external force, further improving the sealing effect on the trash inside.

[0071] like Figure 6 As shown, in a new embodiment, at least one horizontally extending limiting member 112 is provided on the side wall of the counterweight 102. The lock body 10 further includes a balance swing plate 113, disposed on the inner wall of the lock body 10 and rotatable about its connection point with the lock body 10. The balance swing plate 113 is provided with a limiting groove 113a opposite to the limiting member 112 and into which it can be inserted. While the counterweight 102 slides in the locked position 103 and out of the locked position 103, the limiting member 112 slides synchronously with it. The counterweight 102 slides into the limiting groove 113a of the balance swing plate 113 during the sliding process. At the same time, the above-mentioned arrangement can further prevent the trash can lid from being opened when the trash can is tilted. Specifically, the vibration generated when the trash can is tilted will cause the balance swing plate 113 to rotate and move out of its original position, thereby causing the limiting groove 113a on the balance swing plate 113 to deviate from the relative position with the limiting member 112. The outer wall of the balance swing plate 113 will block the limiting member 112, thereby preventing the counterweight 102 from sliding.

[0072] like Figure 2 and Figure 3 As shown, in a new embodiment, the lock body 10 further includes:

[0073] The top plate 114 is rotatably mounted below the counterweight 102 and is rotatably connected to the inner wall of the lock body 10.

[0074] Safety button 115 is embedded in the lock body 10 portion located below the upper top plate 114, so as to push the upper top plate 114 to rotate when pressed;

[0075] When a mischievous child is trapped in a trash can with the lid closed, the child can free themselves. Since the safety button 115 is placed inside the trash can along with the lock body 10, the child can directly press the safety button 115. When the safety button 115 is pressed, it causes the top plate 114 to rotate, thereby pushing the counterweight 102 to slide and disengage from the locking position 103, allowing the child to open the trash can lid from inside the trash can. Therefore, the above settings greatly increase the user-friendliness of the trash can lock in this technical solution.

[0076] like Figure 7 As shown, in a new embodiment, the unlocking handle 20 includes:

[0077] The base frame 203 is fitted over the unlocking linkage 202 and attached to the lock body 10;

[0078] The screw cap 204 is rotatably mounted on the base frame 203.

[0079] The lock cylinder 201 is embedded in the cover 204 and is a key lock cylinder. It includes an integrated positioning card 201a. The unlocking linkage 202 has a first slot 202a that can be inserted when it is rotated. In the locked state, the positioning card 201a is separated from the first slot 202a. Therefore, even if the cover 204 is rotated, the unlocking linkage 202 cannot be rotated.

[0080] The operator can apply unlocking control in the following ways:

[0081] First, insert the key into the lock cylinder 201 and turn it. As the lock cylinder 201 rotates, it drives the positioning card 201a to rotate and enter the first slot 202a on the unlocking linkage 202, thus achieving the docking of the two.

[0082] Finally, rotating the cap 204 will cause the unlocking linkage 202 to rotate, thereby completing the above-mentioned unlocking control.

[0083] like Figure 8 As shown, in a new embodiment, the unlocking handle 20 may also include:

[0084] The base frame 203 is sleeved on the unlocking linkage 202 and attached to the lock body 10;

[0085] The screw cap 204 is rotatably mounted on the base frame 203.

[0086] The lock cylinder 201 is embedded in the cover 204 and is a push-button lock cylinder. The unlocking linkage 202 has a second slot 202b that it can be inserted into when sliding. In the locked state, the button is separated from the second slot 202b, so even if the cover 204 is rotated, the unlocking linkage 202 cannot be rotated.

[0087] Operators can apply unlocking and locking controls in the following ways:

[0088] First, press the button. During the movement, the button is inserted into the second slot 202b on the unlocking linkage 202, thereby achieving the docking of the two.

[0089] Finally, rotating the cap 204 will cause the unlocking linkage 202 to rotate, thereby completing the above-mentioned unlocking control.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new trash can lock characterized in that, It includes: The lock body (10) is arranged in the garbage can cover; the unlocking handle (20) is arranged on one end of the lock body (10) and the other end extends outward through the garbage can cover; The lock catch (30) is arranged in the garbage can and is opposite to the lock body (10) after the garbage can cover is closed; The unlocking handle (20) includes: a lock core (201); an unlocking connecting rod (202) is rotatably arranged on the lock body (10), the lock core (201) can move between the abutting position and the disengaging position of the unlocking connecting rod (202), and the rotation of the unlocking connecting rod (202) is limited when reaching the abutting position; The lock body (10) includes: a lock tongue (101) arranged opposite to the lock catch (30); a counterweight (102) arranged near the locking position (103) of the lock tongue (101) to push the lock tongue (101) to the outside of the lock body (10) and abut with the lock catch (30), and the counterweight (102) can slide between the locking position (103) and the disengaging position (103), and when disengaging, the lock tongue (101) can move to the inside of the lock body (10); a transmission assembly (104) connected with the unlocking connecting rod (202) and the counterweight (102) to drive the counterweight (102) to slide when the unlocking connecting rod (202) rotates; The transmission assembly (104) includes: a linkage hook piece (104a) arranged in the lock body (10) in a eccentric rotating manner, and the rotation axis of the linkage hook piece (104a) is perpendicular to the rotation axis of the unlocking connecting rod (202); a hook (104b) having two ends respectively attached to the unlocking connecting rod (201) and the linkage hook piece (104a), wherein a sliding groove (102a) is formed in the counterweight (102), and one end of the linkage hook piece (104a) is buckled into the sliding groove (102a); The lock body (10) further includes: a magnet (111) arranged on one side of the counterweight (102) to adsorb the counterweight (102); At least one limiting piece (112) horizontally extending is arranged on the side wall of the counterweight (102), wherein the lock body (10) further includes: a balance swing piece (113) arranged on the inner wall of the lock body (10) and rotatable around the connecting position of the balance swing piece (113) and the lock body (10), and the balance swing piece (113) is provided with a limiting groove (113a) opposite to the limiting piece (112) and capable of being inserted into the limiting groove (113a).

2. A novel trash can lock according to claim 1, characterized in that, The lock body (1) further includes: at least one fixed guide (106) arranged opposite to the lock tongue (101) and fixed on the inner wall of the lock body (10), wherein a guide groove (101b) is formed in the lock tongue (101) along the sliding direction of the lock tongue (101) and corresponding to the fixed guide (106), so that the fixed guide (101b) is inserted into the guide groove (101b).

3. A novel trash can lock according to claim 1, characterized in that, The lock body (10) further comprises a fixing member (107) arranged above the bolt (101), a safety hook (108) sleeved on the fixing member (107) and having upper teeth (108a) formed on one side close to the bolt (101), and a torsion spring (109) sleeved on the fixing member (107) and having one free end (109a) arranged on the safety hook (108), wherein the bolt (101) has lower teeth (101c) formed on one side opposite to the upper teeth (108a) and capable of engaging with the upper teeth (108a), and the bolt (101) further has a movable guide member (110) arranged thereon, and the other free end (109a) of the torsion spring (109) extends to the movable guide member (110) and abuts against the movable guide member (110).

4. The novel trash can lock according to claim 1, wherein, The lock body (10) further comprises an upper top plate (114) rotatably arranged below the counterweight (102) and rotatably connected with the inner wall of the lock body (10), and a safety button (115) embedded below the upper top plate (114) and capable of pushing the upper top plate (114) to rotate when pressed.

5. The novel trash can lock of claim 1, wherein, The unlocking handle (20) comprises a bottom frame (203) sleeved on the unlocking connecting rod (202) and attached to the lock body (10), and a rotating cap (204) rotatably arranged on the bottom frame (203), wherein the lock cylinder (201) is embedded on the rotating cap (204) and is a key lock cylinder and comprises an integral positioning card (201a), and the unlocking connecting rod (202) is provided with a first clamping groove (202a) for insertion when the unlocking connecting rod (202) rotates.

6. A novel trashcan lock according to claim 1, wherein, The unlocking handle (20) comprises a bottom frame (203) sleeved on the unlocking connecting rod (202) and attached to the lock body (10), and a rotating cap (204) rotatably arranged on the bottom frame (203), wherein the lock cylinder (201) is embedded on the rotating cap (204) and is a button lock cylinder, and the unlocking connecting rod (202) is provided with a second clamping groove (202b) for insertion when the unlocking connecting rod (202) slides.

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