Pressing type lock

Abstract

The invention relates to the technical field of locks, in particular to a pressing type lock which comprises a lock shell, a lock body, a torsional spring and a lock tongue, a lock cavity is formed in the lock shell, a locking groove is formed in the lock cavity, and a locking knob is arranged on the side, opposite to an opening of the lock cavity, of the lock shell; the lock body comprises a hinge part hinged to the lock shell, a locking part and an operation part, wherein the locking part and the operation part are arranged at the two ends of the hinge part. A mounting groove penetrating through the opposite surfaces of the operation part is formed in the operation part. The spring bolt is hinged to the operation part, the first end of the spring bolt is provided with a pressing part located in the mounting groove, and the second end of the spring bolt is provided with a locking part capable of being locked with the locking groove; the torsional spring is arranged on the hinge part, and two ends are respectively connected with the lock tongue and the lock shell; a pressing part is slidably arranged on the lock shell; the pressing part or the pressing part is used for pushing the spring bolt to rotate and driving the locking part to be separated from the locking groove. The lock can be pressed and unlocked from the outside and can also be pressed and unlocked from the inside, the locking part can be prevented from being separated from the locking groove through the locking knob from the inside, and the safety performance of the lock is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a push-type lock used on a pickup truck cargo cover. Background Art

[0002] A pickup truck, also known as a sedan, is a special type of vehicle designed with an open bed specifically for carrying cargo. Due to this open design, items inside the bed can get wet in rainy or snowy weather. To address this issue, special covers have been designed for pickup truck beds. These covers can be installed to cover and protect the cargo inside, preventing them from getting wet.

[0003] While pickup truck hoods can protect items in the cargo bed from rain or snow, the open design of the cargo bed makes the goods vulnerable to theft. Consequently, people have begun considering installing locks to improve cargo security, such as the one disclosed in a prior patent (publication number CN221220102U) for a pickup truck cargo bed cover. However, when in use, the lock can only be unlocked from the outside (outside the cargo bed) by pressing the lock's pressing portion; it cannot be unlocked from the inside (inside the cargo bed). If someone is sitting in the cargo bed, the first lock cannot be unlocked from the inside (inside the cargo bed), making the lock extremely inconvenient to use.

[0004] In summary, when using existing push-type locks, they can usually only be unlocked by pressing from the outside, and cannot be unlocked by pressing from the inside, which makes the push-type locks inconvenient to use. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, one of the purposes of the present invention is to provide a push-type lock, which aims to solve the technical problem that the existing push-type locks can usually only be unlocked by pressing from the outside and cannot be unlocked from the inside, which makes the push-type locks inconvenient to use.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A push-type lock comprises a lock shell, a lock body, a torsion spring and a lock tongue, wherein the lock shell is provided with a lock cavity, and a locking groove is provided in the lock cavity; the lock body comprises a hinged portion hinged to the lock shell, and a locking portion and an operating portion arranged at both ends of the hinged portion, and the operating portion is provided with a mounting groove that passes through its opposite surface and communicates with the lock cavity; the lock tongue is hinged to the operating portion, and a pressing portion located in the mounting groove is provided at the first end of the lock tongue, and a locking portion capable of locking with the locking groove is provided at the second end of the lock tongue; the torsion spring comprises a coil portion arranged on the hinged portion, a first shaft portion connected to the lock tongue and The lock body is connected to the second shaft portion of the lock housing; the pressing portion is used to disengage the locking portion from the locking groove; the second end of the lock tongue is also provided with a driving portion; a pressing component is slidably provided on the side of the lock housing facing away from the operating portion, and the pressing component is used to push the driving portion to drive the locking portion to disengage the locking groove; wherein, when the locking portion and the locking groove are in a locked state, the torsion spring is in an energy storing state; when the pressing portion or the pressing component is pressed to unlock the locking portion, the lock body rotates around the lock housing under the kinetic energy provided by the torsion spring, so that the operating portion opens the lock cavity and the locking portion is unlocked.

[0008] The beneficial effects of the present invention are:

[0009] When the lock needs to be unlocked from the outside, the pressing part of the lock is pressed to push the driving part of the lock tongue, driving the locking part of the lock tongue to disengage the locking groove, and the lock body rotates around the lock shell under the kinetic energy provided by the torsion spring, so that the operating part opens the lock cavity and unlocks the locking part, thereby completing the action of unlocking the lock from the outside; when the lock needs to be unlocked from the inside, the pressing part of the lock is pressed to push the driving part of the lock tongue, driving the locking part of the lock tongue to disengage the locking groove, and the lock body rotates around the lock shell under the kinetic energy provided by the torsion spring, so that the operating part opens the lock cavity and unlocks the locking part, thereby completing the action of unlocking the lock from the inside. It can be seen from this that the push-type lock of the present invention can be unlocked by pressing from the outside or from the inside, overcoming the defect that the existing push-type lock can usually only be unlocked by pressing from the outside but not from the inside when in use.

[0010] Furthermore, the pressing component includes a pressing rod and a pressing head, the first end of the pressing rod extends into the lock cavity, the second end of the pressing rod is located outside the lock cavity, and the pressing rod can slide relative to the lock shell; the pressing head is arranged at the second end of the pressing rod, and the pressing head is used to press the pressing rod to slide relative to the lock shell to drive the locking part out of the locking groove.

[0011] Advantageous effect: It is easy to press and unlock the lock from the inside.

[0012] Furthermore, the first end of the pressing rod is provided with a limiting portion located in the lock cavity, the limiting portion is coaxially arranged with the pressing rod, and the limiting portion is used to prevent the pressing rod from escaping from the lock cavity.

[0013] Beneficial effect: The pressing rod can be prevented from being separated from the lock cavity.

[0014] Furthermore, the push-type lock of the present invention also includes a push rod reset assembly, which includes a mounting plate, a spring and a sleeve. The mounting plate is arranged on the lock housing, and the sleeve is arranged on the mounting plate along the thickness direction of the mounting plate. The push rod slides through the sleeve and the mounting plate in sequence along the axial direction of the sleeve. The push rod is provided with a positioning portion located in the sleeve, and the spring is arranged on the push rod. The spring is located in the sleeve, and the two ends of the spring are respectively in contact with the mounting plate and the positioning portion.

[0015] Beneficial effect: After the pressing rod pushes the driving part of the lock tongue, the pressing rod can be automatically reset.

[0016] Furthermore, the first end portion of the pressing rod is configured as a conical structure, the driving portion is provided with an inclined surface facing the pressing rod, and the conical surface of the conical structure is adapted to be slidably fitted with the inclined surface.

[0017] Beneficial effect: the locking portion of the lock tongue can be quickly separated from the locking groove.

[0018] Furthermore, the push-type lock of the present invention further includes a lock core, which is rotatably disposed on the operating portion and is used to prevent the locking portion of the lock tongue from disengaging from the locking groove.

[0019] Beneficial effect: The lock core can be rotated by a key from the outside to prevent the locking portion of the lock tongue from being separated from the locking groove, or the locking portion of the lock tongue can be unlocked to be separated from the locking groove.

[0020] Furthermore, the push-type lock of the present invention also includes a locking knob, which is rotatably arranged on the lock housing. The locking knob is located on the side of the lock housing facing away from the operating part, and the locking knob is used to prevent the locking part of the lock tongue from disengaging from the locking groove.

[0021] Beneficial effect: The locking portion of the lock tongue can be prevented from being separated from the locking groove by rotating the locking knob internally, or the locking portion of the lock tongue can be unlocked to be separated from the locking groove.

[0022] Furthermore, when the locking knob prevents the locking portion of the lock tongue from being separated from the locking groove, the lock core cannot unlock the locking portion of the lock tongue from being separated from the locking groove.

[0023] Beneficial effect: When the locking portion of the lock tongue is locked out of the locking groove by the locking knob internally, the locking portion of the lock tongue cannot be unlocked from the locking groove from the outside by pressing the pressing portion of the lock or rotating the lock cylinder with the key.

[0024] Furthermore, the first end of the locking knob is located in the lock cavity, and the second end of the locking knob is located outside the lock cavity. When the second end of the locking knob is rotated so that the first end of the locking knob abuts against the driving part, the locking knob is in a locked state; when the second end of the locking knob is rotated so that the first end of the locking knob is misaligned with the driving part, the locking knob is in an unlocked state.

[0025] Beneficial effect: It is convenient to lock or unlock the locking portion of the lock tongue and to disengage from the locking groove.

[0026] Furthermore, finger gripping portions are provided on opposite sides of the second end of the locking knob.

[0027] Beneficial effect: convenient unlocking of the locking knob.

[0028] In summary, the significant effects of the push-type lock of the present invention are:

[0029] The push-type lock of the present invention can be unlocked by pressing it from the outside or from the inside; the locking portion of the lock tongue can be locked or unlocked from the locking groove by rotating the lock cylinder with a key from the outside; the locking portion of the lock tongue can be locked or unlocked from the locking groove by locking the lock knob from the inside; when the locking portion of the lock tongue is locked and disengaged from the locking groove by locking the lock knob from the inside, the locking portion of the lock tongue cannot be unlocked from the locking groove from the outside even by pressing the pressing portion of the lock from the outside or rotating the lock cylinder with the key, thereby greatly improving the safety performance of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the push-type lock of the present invention;

[0031] Figure 2 for Figure 1 A structural diagram from another angle;

[0032] Figure 3 for Figure 2 A structural diagram from another angle;

[0033] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0034] Figure 5 for Figure 4Schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 6 This is a schematic diagram of the structure in which the mounting base is fixed to the lock housing in this embodiment;

[0036] Figure 7 6 is another perspective structural diagram;

[0037] Figure 8 This is a structural diagram of the lock housing involved in this embodiment;

[0038] Figure 9 This is a structural diagram of the lock tongue involved in this embodiment;

[0039] Figure 10 This is a schematic structural diagram of the hinge shaft involved in this embodiment;

[0040] Figure 11 This is a schematic diagram of the structure of the connection between the lock tongue and the hinge shaft in this embodiment;

[0041] Figure 12 This is a structural diagram of the lock body involved in this embodiment;

[0042] Figure 13 for Figure 12 A structural diagram from another angle;

[0043] Figure 14 This is a structural diagram of the lock core involved in this embodiment;

[0044] Figure 15 This is a structural diagram of the locking knob in this embodiment.

[0045] Reference numerals in the accompanying drawings:

[0046] 1. Lock housing; 10. Lock chamber; 101. Torsion spring fixing portion; 11. Locking groove; 12. Mounting seat; 2. Lock body; 20. Hinge portion; 201. Groove; 202. Torsion spring winding portion; 203. Hinge shaft; 21. Locking portion; 22. Operating portion; 220. Mounting groove; 221. Restricting portion; 3. Lock tongue; 30. Pressing portion; 31. Locking portion; 32. Driving portion; 320. Inclined surface; 33. Mounting hole; 330. Hinge Shaft; 4. Torsion spring; 40. Coil portion; 41. First shaft portion; 42. Second shaft portion; 5. Pressing component; 50. Pressing rod; 501. Limiting portion; 502. Conical structure; 503. Positioning portion; 51. Pressing head; 52. Mounting plate; 53. Spring; 54. Sleeve; 6. Lock core; 60. Unlocking slot; 7. Locking knob; 70. Locking block portion; 701. Locking end; 702. Knob portion; 703. Finger holding portion. DETAILED DESCRIPTION

[0047] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, it should be understood that the terms "width", "up", "down", "front", "back", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0050] Please refer to Figure 1 - Figure 15 The present invention provides a push-type lock, including a lock shell 1, a lock body 2, a lock tongue 3, a torsion spring 4, a pressing component 5, a lock core 6 and a locking knob 7.

[0051] Reference Figure 1 、 Figure 2 and Figure 6 - Figure 8 A lock cavity 10 is provided on the lock shell 1, the opening of the lock cavity 10 faces outward, and a locking groove 11 is provided in the lock cavity 10; a mounting seat 12 is provided on the lock shell 1 and is located outside the locking groove 11. The mounting seat 12 is used to install and fix the lock at the position to be installed.

[0052] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 12 and Figure 13The lock body 2 includes a hinged portion 20 hingedly connected to the lock housing 1, and a locking portion 21 and an operating portion 22 disposed at each end of the hinged portion 20. The hinged portion 20 is hingedly connected to the lock housing 1 via a hinge axis 203. A groove 201 is defined on the inner sidewall of the hinged portion 20. A torsion spring coil 202, which is connected to the hinge axis 203 and is coaxial with the hinge axis 203, is secured within the groove 201. The torsion spring coil 202 is coaxial with the hinge axis 203. The operating portion 22 has a mounting slot 220 extending through its opposing surfaces and communicating with the lock cavity 10.

[0053] Reference Figure 1 、 Figure 4 、 Figure 9 、 Figure 10 and Figure 12 The lock tongue 3 is hinged to the operating portion 22 of the lock body 2 via a hinge shaft 330, and the hinge shaft 330 is keyed to the mounting hole 33 on the lock tongue 3. The first end of the lock tongue 3 is integrally connected to a pressing portion 30 located in the mounting groove 220. The rotation of the pressing portion 30 is limited by the limiting portion 221 in the mounting groove 220, preventing the pressing portion 30 from excessively rotating around the hinge shaft 330 and affecting the use effect. The second end of the lock tongue 3 is integrally connected to a locking portion 31 that can be locked with the locking groove 11; the pressing portion 30 is used to disengage the locking portion 31 from the locking groove 11. In addition, the second end of the lock tongue 3 is also integrally connected to a driving portion 32 for driving the locking portion 31 to disengage the locking groove 11.

[0054] Reference Figure 4 and Figure 13 The torsion spring 4 includes a coil portion 40 disposed on the hinge portion 20, a first shaft portion 41 connected and fixed to the lock tongue 3, and a second shaft portion 42 connected and fixed to the lock housing 1. Specifically, the coil portion 40 is sleeved on the torsion spring winding portion 202 of the hinge portion 20; the second shaft portion 42 of the torsion spring 4 is fixed to the torsion spring fixing portion 101 in the lock cavity 10.

[0055] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The pressing member 5 is slidably disposed on the side of the lock housing 1 facing away from the operating portion 22. The pressing member 5 is used to push the driving portion 32 of the lock tongue 3, driving the locking portion 31 to disengage from the locking groove 11. When the locking portion 31 and the locking groove 11 are in a locked state, the torsion spring 4 is in an energy-storing state. When the pressing portion 30 is pressed or the pressing member 5 is released to unlock the locking portion 31, the lock body 2 rotates around the lock housing 1 under the kinetic energy provided by the torsion spring 4, causing the operating portion 22 to open the lock cavity 10 and unlock the locking portion 21.

[0056] As an application scenario, when the push-type lock of this embodiment is installed on the cargo box cover of a pickup truck, the mounting seat 12 is fixed on the cargo box cover, and the pressing portion 30 is located outside the cargo box of the pickup truck, and the pressing component 5 is located inside the cargo box of the pickup truck; when the lock is in the locked state, the locking portion 31 of the lock tongue 3 is engaged with the locking groove 11, the torsion spring 4 is in the energy storage state, the operating portion 22 covers the lock cavity 10, and the locking portion 21 is in the locked state; when the lock needs to be unlocked from the outside, the pressing portion 30 of the lock is pressed to drive the lock tongue 3 to rotate, so that the lock tongue 3 The locking portion 31 disengages from the locking groove 11, and the lock body 2 rotates around the lock shell 1 under the kinetic energy provided by the torsion spring 4, so that the operating portion 22 opens the lock cavity 10 and the locking portion 21 is unlocked, thereby completing the action of unlocking the lock from the outside; when the lock needs to be unlocked from the inside, by pressing the pressing component 5 of the lock, the driving portion 32 of the lock tongue 3 is pushed, driving the locking portion 31 of the lock tongue 3 to disengage from the locking groove 11, and the lock body 2 rotates around the lock shell 1 under the kinetic energy provided by the torsion spring 4, so that the operating portion 22 opens the lock cavity 10 and the locking portion 21 is unlocked, thereby completing the action of unlocking the lock from the inside.

[0057] It can be seen from this that the push-type lock of the present invention can be unlocked by pressing from the outside or from the inside, overcoming the defect that the existing push-type lock can usually only be unlocked by pressing from the outside but not from the inside when in use.

[0058] It should be noted that the locked state of the lock refers to the state in which the locking portion 31 of the lock tongue 3 is engaged with the locking groove 11 , and the unlocked state of the lock refers to the state in which the locking portion 31 of the lock tongue 3 is disengaged from the locking groove 11 .

[0059] In this embodiment, referring to Figure 2 、 Figure 4 and Figure 5 The pressing component 5 includes a pressing rod 50 and a pressing head 51. The outer diameter of the pressing head 51 is larger than the outer diameter of the pressing rod 50. The first end of the pressing rod 50 extends into the lock cavity 10, and the second end of the pressing rod 50 is located outside the lock cavity 10. Of course, the pressing rod 50 can slide relative to the lock housing 1. The pressing head 51 is provided at the second end of the pressing rod 50. The pressing head 51 is used to press the pressing rod 50 to slide relative to the lock housing 1, so as to drive the locking portion 31 to disengage from the locking groove 11. It can be seen from this that when the lock needs to be unlocked from the inside, by pressing the pressing rod 50, the pressing rod 50 pushes the driving portion 32 of the lock tongue 3, so as to drive the locking portion 31 to disengage from the locking groove 11.

[0060] In addition, refer to Figure 4 、 Figure 5 、 Figure 11 and Figure 12The first end of the pressing rod 50 is provided with a limiting portion 501 located within the lock cavity 10. The limiting portion 501 is coaxially arranged with the pressing rod 50 and is used to prevent the pressing rod 50 from disengaging from the lock cavity 10, thereby facilitating the pressing rod 50 to drive the locking portion 31 out of the locking groove 11. In addition, the first end of the pressing rod 50 is provided with a conical structure 502. The driving portion 32 is provided with an inclined surface 320 facing the pressing rod 50. The conical surface of the conical structure 502 is adapted to slide and adapt with the inclined surface 320. When the pressing rod 50 is manually pushed toward the driving portion 32, the force exerted by the conical surface of the conical structure 502 on the inclined surface 320 causes the lock tongue 3 to rotate about the hinge shaft 330, thereby causing the locking portion 31 to disengage from the locking groove 11.

[0061] In order to automatically reset the pressing rod 50 , a pressing rod reset assembly is provided on the lock housing 1 .

[0062] In this embodiment, referring to Figure 2 and Figure 5 The push rod reset assembly includes a mounting plate 52, a spring 53, and a sleeve 54. The mounting plate 52 can be fixed to the lock housing 1 by screws; the sleeve 54 is fixed to the mounting plate 52 along its thickness direction; the first end of the push rod 50 slides through the sleeve 54 and the mounting plate 52 in sequence along the axial direction of the sleeve 54 to enter the lock cavity 10; the push rod 50 is sleeved with a positioning portion 503 located within the sleeve 54, and the positioning portion 503 is coaxial with the push rod 50; the spring 53 is sleeved on the push rod 50, located within the sleeve 54, and the two ends of the spring 53 respectively abut against the mounting plate 52 and the positioning portion 503. When the user presses the above-mentioned pressing head 51 inside (inside the pickup truck cargo bed), the push rod 50 pushes the driving portion 32 of the lock tongue 3 to drive the locking portion 31 out of the locking groove 11, and the push rod 50 is reset under the elastic force of the spring 53.

[0063] In this embodiment, referring to Figure 1 、 Figure 4 、 Figure 5 and Figure 14 The lock core 6 is rotatably mounted on the operating portion 22 of the lock body 2. The lock core 6 is a commonly used key lock core 6. The lock core 6 is used to prevent or unlock the locking portion 31 of the lock tongue 3 from disengaging from the locking groove 11. An unlocking groove 60 is provided on the lock core 6. When the lock core 6 is rotated by the key, the unlocking groove 60 on the lock core 6 faces the corresponding drive portion 32. At this time, the lock core 6 does not block the rotation of the drive portion 32, so that the lock core 6 is in an unlocked state. When the lock core 6 is rotated by the key, the unlocking groove 60 on the lock core 6 is misaligned with the drive portion 32, that is, the peripheral wall of the lock core 6 blocks the rotation of the drive portion 32, and the lock core 6 is in a locked state.

[0064] It should be noted that the lock core 6 being in the unlocked state means that the lock core 6 does not prevent the locking portion 31 from escaping the locking groove 11 ; the lock core 6 being in the locked state means that the lock core 6 prevents the locking portion 31 from escaping the locking groove 11 .

[0065] When the lock core 6 is in the locked state, no matter whether the pressing portion 30 is pressed from the outside or the pressing rod 50 is pressed from the inside, the lock tongue 3 cannot be driven to rotate, that is, the locking portion 31 of the lock tongue 3 cannot be disengaged from the locking groove 11, and thus the lock of this embodiment cannot be unlocked.

[0066] In this embodiment, referring to Figure 4 、 Figure 5 and Figure 15 The locking knob 7 can be rotatably mounted on the lock housing 1 via a bearing. The locking knob 7 is located on the side of the lock housing 1 facing away from the operating portion 22. The locking knob 7 is used to prevent the locking portion 31 of the lock tongue 3 from being disengaged from the locking groove 11. The locking knob 7 and the lock core 6 are independent of each other. When the locking knob 7 prevents the locking portion 31 of the lock tongue 3 from being disengaged from the locking groove 11, the lock core 6 cannot unlock the locking portion 31 of the lock tongue 3 from being disengaged from the locking groove 11. In other words, it can be understood that when the locking portion 31 of the lock tongue 3 is locked from the locking groove 11 by the locking knob 7 internally, the locking portion 31 of the lock tongue 3 cannot be unlocked from the locking groove 11 from the outside by pressing the pressing portion 30 of the lock or rotating the lock core 6 with a key.

[0067] The first end of the locking knob 7 is located in the lock cavity 10, and the second end of the locking knob 7 is located outside the lock cavity 10. When the second end of the locking knob 7 is rotated, the second end of the locking knob 7 is configured as a knob portion 702, so that the first end of the locking knob 7 abuts against the driving portion 32, the locking knob 7 is in a locked state; when the second end of the locking knob 7 is rotated so that the first end of the locking knob 7 is misaligned with the driving portion 32, the locking knob 7 is in an unlocked state. Specifically, it can be understood that the first end of the locking knob 7 has a locking block portion 70, which is a square structure and has a locking end 701. When the second end of the locking knob 7 is manually rotated, the locking end 701 on the locking block portion 70 rotates toward the driving portion 32 of the lock tongue 3. The locking block portion 70 of the locking knob 7 blocks the driving portion 32 of the lock tongue 3 from rotating. At this time, whether pressing the above-mentioned pressing portion 30 from the outside or pressing the above-mentioned pressing rod 50 from the inside cannot drive the lock tongue 3 to rotate, that is, it is impossible to unlock the locking portion 31 from the locking groove 11. Even if the lock core 6 is in the unlocked state, pressing the above-mentioned pressing portion 30 from the outside cannot drive the lock tongue 3 to rotate, that is, it is impossible to unlock the locking portion 31 from the locking groove 11. In this case, the only way to unlock the locking portion 31 from the locking groove 11 is to unlock the locking knob 7 from the inside and press the above-mentioned pressing rod 50.

[0068] It should be noted that the locking knob 7 is in a locked state, which means that the locking end 701 of the locking knob 7 is facing the driving part 32 of the lock tongue 3, so that the locking block part 70 of the locking knob 7 blocks the rotation of the lock tongue 3; the locking knob 7 is in an unlocked state, which means that the locking end 701 of the locking knob 7 is misaligned with the driving part 32 of the lock tongue 3, and the locking block part 70 does not block the rotation of the lock tongue 3.

[0069] In addition, finger gripping portions 703 are provided on opposite sides of the second end of the locking knob 7 , and the finger gripping portions 703 can facilitate the user to grip the locking knob 7 with their fingers to rotate it.

[0070] The working principle of the push-type lock of the present invention is as follows:

[0071] When the lock core 6 and the locking knob 7 are both in the locked state, the pressing portion 30 of the lock is pressed from the outside or the pressing rod 50 of the lock is pressed from the inside, driving the lock tongue 3 to rotate, causing the locking portion 31 of the lock tongue 3 to disengage the locking groove 11. At this time, the lock body 2 rotates around the lock housing 1 under the kinetic energy provided by the torsion spring 4, and the lock tongue 3 and lock core 6 also rotate with the lock body 2, causing the operating portion 22 to open the lock cavity 10 and unlock the locking portion 21, thereby completing the unlocking action of the lock. When the lock needs to be locked, the user manually pushes the operating portion 22 of the lock body 2 from the outside, causing the lock body 2 to rotate around the hinge axis 203, and the lock tongue 3 and lock core 6 also rotate with the lock body 2 until the locking portion 31 on the lock tongue 3 is engaged in the locking groove 11, completing the locking action of the lock.

[0072] In summary, it can be seen that the push-type lock of the present invention can be unlocked by pressing from the outside or from the inside; the locking portion 31 of the lock tongue 3 can be locked or unlocked from the locking groove 11 by rotating the lock cylinder 6 with a key from the outside; the locking portion 31 of the lock tongue 3 can be locked or unlocked from the locking groove 11 by the locking knob 7 from the inside; when the locking portion 31 of the lock tongue 3 is locked and disengaged from the locking groove 11 by the locking knob 7 from the inside, the locking portion 31 of the lock tongue 3 cannot be unlocked from the outside to disengage from the locking groove 11 by pressing the pressing portion 30 of the lock from the outside and rotating the lock cylinder 6 by the key, thereby greatly improving the safety performance of the lock.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A push-type lock, comprising a lock shell, a lock body, a torsion spring and a lock tongue, wherein the lock shell is provided with a lock cavity, and a locking groove is provided in the lock cavity; the lock body comprises a hinged portion hingedly connected to the lock shell, a locking portion and an operating portion arranged at both ends of the hinged portion, the operating portion being provided with a mounting groove that passes through its opposite surface and communicates with the lock cavity; the lock tongue is hinged to the operating portion, and a pressing portion located in the mounting groove is provided at a first end of the lock tongue, and a locking portion capable of locking with the locking groove is provided at a second end of the lock tongue; the torsion spring comprises a coil portion arranged on the hinged portion, a first shaft portion connected to the lock tongue and a second shaft portion connected to the lock shell; the pressing portion is used to cause the locking portion to disengage from the locking groove; it is characterized in that The second end of the lock tongue is also provided with a driving part; a pressing component is slidably provided on the side of the lock shell facing away from the operating part, and the pressing component is used to push the driving part to drive the locking part out of the locking groove; wherein, when the locking part and the locking groove are in a locked state, the torsion spring is in an energy storage state; when the pressing part or the pressing component is pressed to unlock the locking part, the lock body rotates around the lock shell under the kinetic energy provided by the torsion spring, so that the operating part opens the lock cavity and the locking part is unlocked.

2. A push-type lock according to claim 1, characterized in that: The pressing component includes a pressing rod and a pressing head, the first end of the pressing rod extends into the lock cavity, the second end of the pressing rod is located outside the lock cavity, and the pressing rod can slide relative to the lock housing; the pressing head is arranged at the second end of the pressing rod, and the pressing head is used to press the pressing rod to slide relative to the lock housing to drive the locking portion out of the locking groove.

3. A push-type lock according to claim 2, characterized in that: The first end of the pressing rod is provided with a limiting portion located in the lock cavity, the limiting portion is coaxially arranged with the pressing rod, and the limiting portion is used to prevent the pressing rod from escaping from the lock cavity.

4. A push-type lock according to claim 3, characterized in that: It also includes a pressing rod reset assembly, which includes a mounting plate, a spring and a sleeve. The mounting plate is arranged on the lock housing, and the sleeve is arranged on the mounting plate along the thickness direction of the mounting plate. The pressing rod slides through the sleeve and the mounting plate in sequence along the axial direction of the sleeve. The pressing rod is provided with a positioning portion located in the sleeve. The spring is mounted on the pressing rod, and the spring is located in the sleeve, and both ends of the spring are respectively in contact with the mounting plate and the positioning portion.

5. A push-type lock according to claim 2, 3 or 4, characterized in that: The first end portion of the pressing rod is configured as a tapered structure, the driving portion is provided with an inclined surface facing the pressing rod, and the tapered surface of the tapered structure is adapted to be slidably fitted with the inclined surface.

6. The push-type lock according to claim 1, characterized in that: The utility model further comprises a lock core which is rotatably arranged on the operating portion and is used for preventing the locking portion of the lock tongue from being separated from the locking groove.

7. A push-type lock according to claim 6, characterized in that: It also includes a locking knob, which is rotatably arranged on the lock housing. The locking knob is located on the side of the lock housing facing away from the operating part, and is used to prevent the locking part of the lock tongue from disengaging from the locking groove.

8. The push-type lock according to claim 7, characterized in that: When the locking knob prevents the locking portion of the lock tongue from being separated from the locking groove, the lock core cannot unlock the locking portion from being separated from the locking groove.

9. A push-type lock according to claim 7 or 8, characterized in that: The first end of the locking knob is located in the lock cavity, and the second end of the locking knob is located outside the lock cavity. When the second end of the locking knob is rotated so that the first end of the locking knob abuts against the driving part, the locking knob is in a locked state; when the second end of the locking knob is rotated so that the first end of the locking knob is misaligned with the driving part, the locking knob is in an unlocked state.

10. The push-type lock according to claim 9, characterized in that: Finger gripping portions are provided on opposite sides of the second end of the locking knob.

Images