Lock shell structure and handle lock comprising same

Abstract

The utility model discloses a lock shell structure and a handle lock comprising the same. The lock shell structure comprises a shell body and a limiting piece, the shell body is provided with a first side and a second side, the first side is used for arranging a handle head, and a containing cavity is formed in the second side and used for arranging a lock body; wherein the limiting piece is detachably connected to the lock body, a locking hole is formed in the limiting piece, at least part of the locking hole protrudes out of the first side in the direction away from the second side, and the locking hole is used for allowing the counter locking push rod to be inserted so as to limit rotation of the handle head. The locking hole is formed in the detachable limiting piece, and the locking hole in the limiting piece can at least partially protrude out of the first side, so that it can be guaranteed that the back locking push rod and the locking hole have enough contact area, the back locking stability is improved, the difficulty that the locking hole and a boss are integrally formed in the shell body can be avoided, and the service life of the shell body is prolonged. The production difficulty and the production cost of the shell main body are reduced, and the problem that parts in the shell main body are affected due to the fact that the insertion depth of the back locking push rod in the shell main body is increased is also avoided.

Description

Lock housing structure and lever lock including the thereof Technical Field

[0001] This utility model relates to the field of door and window hardware accessories, and in particular to lock housing structure and lever lock including the same. Background Technology

[0002] Existing lever locks typically include a lever assembly, a lock body, and a deadbolt mechanism. The lever head of the lever assembly is rotatably connected to the lock body. Rotating the lever head can switch the lock body between locked and unlocked states. The deadbolt mechanism is used to control the working state of the lever head. When the deadbolt mechanism is triggered, it can restrict the rotation of the lever head. When the deadbolt mechanism is reset, it can remove the restriction on the rotation of the lever head.

[0003] Patent application number 2024224132020 discloses a deadbolt structure and a door lock mechanism. The deadbolt structure includes: a first handle, which has a sliding cavity and a first inner handle cavity; a first inner handle head, which has a limiting groove and is assembled in the first inner handle cavity for rotational connection with a lock; a deadbolt sliding rod, which slides in the sliding cavity and has a first driving mechanism at one end; a driving sleeve, which has a second driving mechanism drivenly connected to the first driving mechanism; and a deadbolt push rod, which slides in the limiting groove. The drive sleeve has an inclined surface on its edge for driving the anti-locking push rod to move towards the lock. When the anti-locking sliding rod slides towards the anti-locking end of the sliding cavity, the first drive mechanism drives the second drive mechanism and rotates the drive sleeve. The inclined surface controls the anti-locking push rod to slide along the limiting groove towards the lock and insert into the locking hole of the lock. At this time, the first inner handle head is relatively fixed with the lock to complete the anti-locking. Furthermore, bosses are provided on both sides of the locking hole that contact the anti-locking push rod. The bosses are trapezoidal or triangular dam structures. The bosses can increase the insertion depth of the anti-locking push rod and thus improve the anti-locking stability.

[0004] In the aforementioned door lock mechanism, both the locking hole and the boss are integrally formed on the lock housing. However, in actual production, the formation of the boss is quite difficult, which leads to higher production difficulty and cost for the lock housing. If the boss is not provided, the contact area between the deadbolt and the locking hole will be too small, resulting in low deadbolt stability. In addition, the insertion depth of the deadbolt in the lock housing will affect the installation and operation of the internal components of the lock housing. Therefore, it is not advisable to increase the insertion depth of the deadbolt in the lock housing in order to increase the connection stability between the deadbolt and the lock housing. Summary of the Invention

[0005] In order to overcome at least one of the defects described in the prior art, the present invention provides a lock housing structure and a lever lock including the same, so as to solve the problems of high production difficulty and high cost caused by the integral molding of the locking hole and the boss in the lock housing structure of the existing lever lock, as well as the contradiction between the anti-locking stability and the installation of internal parts of the lock housing.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A lock housing structure is used for a lever lock. The lever lock includes a lever head, a deadbolt, and a lock body. The deadbolt is slidably mounted on the lever head. The lock housing structure includes a housing body and a limiting member. The housing body has a first side and a second side. The first side is used to house the lever head, and the second side forms a receiving cavity for housing the lock body. The limiting member is detachably connected to the housing body and has a locking hole. The locking hole protrudes at least partially from the first side in a direction away from the second side. The locking hole is used to allow the deadbolt to be inserted to restrict the rotation of the lever head.

[0008] According to some embodiments of the present invention, the limiting member includes a connecting block and a locking protrusion. The connecting block is detachably connected to the shell body, and the locking protrusion is connected to the connecting block. The locking protrusion protrudes at least partially from the first side in a direction away from the second side. The locking hole includes a first hole portion and a second hole portion that are connected to each other. The first hole portion is opened in the connecting block, and the second hole portion is opened in the locking protrusion.

[0009] According to some embodiments of the present invention, the shell body is provided with a mounting groove, and the connecting block is embedded in the mounting groove.

[0010] According to some embodiments of the present invention, the mounting groove has a groove bottom wall, which is recessed from the second side to the first side, and the groove bottom wall is provided with an opening; the connecting block abuts against the groove bottom wall, and the locking protrusion protrudes at least partially from the opening and at least partially from the first side.

[0011] According to some embodiments of the present invention, the mounting groove has a first groove sidewall and a second groove sidewall disposed opposite to each other, the length of the first groove sidewall is greater than the length of the second groove sidewall, the first groove sidewall and the second groove sidewall are both connected to the bottom wall of the groove, and the connecting block is embedded between the first groove sidewall, the second groove sidewall and the bottom wall of the groove.

[0012] According to some embodiments of the present invention, the limiting member further includes a limiting ear, which is connected at the junction between the locking protrusion and the connecting block. The opening has a limiting port adapted to the limiting ear, and the limiting ear is engaged in the limiting port.

[0013] According to some embodiments of the present invention, the limiting member is further provided with a first locking block, and a connecting post for connecting the lock body is provided in the receiving cavity. A first locking groove is provided on the outer side wall of the connecting post, and the first locking block is engaged in the first locking groove.

[0014] According to some embodiments of the present invention, at least two limiting members are provided, and the at least two limiting members are spaced apart on the lock body.

[0015] In addition, this utility model also provides a lever lock, including the lock housing structure as described above, and further including a lever assembly, a lock body, and a deadbolt; the lock body is disposed in the receiving cavity, the lever assembly includes a grip portion and a lever head, the lever head is rotatably connected to the first side, and the grip portion is connected to the lever head; the deadbolt is slidably disposed on the lever head, and the deadbolt can slide between a first position and a second position; when in the first position, the deadbolt is separated from the locking hole, and the lever head can rotate relative to the housing body; when in the second position, the deadbolt is inserted into the locking hole to fix the relative position of the lever head and the housing body, thereby restricting the rotation of the lever head.

[0016] According to some embodiments of this utility model, the lock body further includes a transmission ring and a lock tongue. The transmission ring is disposed in the receiving cavity and is convexly connected to the handle head. The transmission ring is also convexly connected to the lock tongue through a transmission structure. Under the drive of the handle head, the transmission ring can rotate and drive the lock tongue to move through the transmission structure. Part of the structure of the limiting member is connected to the second side, and the transmission ring presses against the limiting member to fix the limiting member.

[0017] In summary, the lock housing structure and the lever lock including the same provided by this utility model have at least the following technical effects:

[0018] By setting the locking hole on the detachable limiting member, the locking hole on the limiting member can at least partially protrude from the first side, thereby ensuring that the anti-locking push rod and the locking hole have sufficient contact area, thus improving the anti-locking stability. In addition, this setting can also avoid the difficulty of integrally molding the locking hole and boss in the shell body, reducing the production difficulty and production cost of the shell body, and also avoiding the problem of affecting the internal components of the shell body due to increasing the insertion depth of the anti-locking push rod in the shell body. Attached Figure Description

[0019] Figure 1 is a three-dimensional structural diagram of the lock housing structure of an embodiment of the present invention from a first perspective.

[0020] Figure 2 is an exploded view of the lock case structure of this utility model embodiment from a second perspective;

[0021] Figure 3 is a three-dimensional structural diagram of the limiting member according to an embodiment of the present utility model;

[0022] Figure 4 is a three-dimensional structural diagram of the lock shell structure of this utility model embodiment from a third-person perspective;

[0023] Figure 5 is a three-dimensional structural diagram of the lock shell structure of this utility model embodiment from a fourth perspective;

[0024] Figure 6 is an exploded view of the handle lock according to an embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the assembly structure of the lock shell and the lock body according to an embodiment of the present invention.

[0026] The meanings of the reference numerals in the attached figures are as follows:

[0027] 1. Lock housing structure; 11. Housing body; 111. First side; 112. Second side; 113. Receiving cavity; 114. Mounting groove; 1141. Groove bottom wall; 1142. Opening; 1143. Limiting port; 1144. First groove side wall; 1145. Second groove side wall; 115. Connecting post; 116. First slot; 117. Connecting ring protrusion; 118. Second slot; 12. Limiting component; 121. Locking hole; 1211. First hole; 1212. Second hole; 122. Connecting block; 123. Locking protrusion; 124. Limiting ear; 125. First locking block; 126. Second locking block; 2. Handle assembly; 21. Handle head; 211. Limiting slide groove; 22. Grip part; 3. Anti-locking push rod; 4. Lock body; 41. Transmission ring; 5. Anti-locking drive structure. Detailed Implementation

[0028] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figures 1 to 7. This utility model embodiment discloses a lock housing structure 1 for a lever lock. The lever lock includes a lever head 21, a deadbolt 3, and a lock body 4. The deadbolt 3 is slidably disposed on the lever head 21 and can slide between a first position and a second position. In the first position, the deadbolt 3 is separated from the locking hole 121, and the lever head 21 can rotate relative to the housing body 11 to drive the lock body 4. In the second position, the deadbolt 3 is inserted into the locking hole 121 to fix the relative position of the lever head 21 and the housing body 11, thereby restricting the rotation of the lever head 21.

[0033] Furthermore, the lock housing structure 1 includes a housing body 11 and a limiting member 12. The housing body 11 has a first side 111 and a second side 112. The first side 111 is used to provide a handle head 21, and the second side 112 forms a receiving cavity 113, which is used to provide a lock body 4. The limiting member 12 is detachably connected to the housing body 11 and is provided with a locking hole 121. The locking hole 121 protrudes at least partially from the first side 111 in a direction away from the second side 112. The locking hole 121 is used to insert a deadbolt 3 to limit the rotation of the handle head 21.

[0034] The lock housing structure 1 provided in this embodiment provides a locking hole 121 on a detachable limiting member 12. The locking hole 121 on the limiting member 12 can at least partially protrude from the first side 111, thereby ensuring that the anti-locking push rod 3 and the locking hole 121 have sufficient contact area, thereby improving the anti-locking stability. Furthermore, this arrangement can also avoid the difficulty of integrally forming the locking hole 121 and the boss in the housing body 11, reducing the production difficulty and production cost of the housing body 11, and also avoiding the problem of affecting the internal components of the housing body 11 due to increasing the insertion depth of the anti-locking push rod 3 in the housing body 11.

[0035] As shown in Figures 1, 2, and 3. Preferably, in this embodiment, the limiting member 12 includes a connecting block 122 and a locking protrusion 123. The connecting block 122 is detachably connected to the housing body 11, and the locking protrusion 123 is connected to the connecting block 122. The locking protrusion 123 protrudes at least partially from the first side 111 in a direction away from the second side 112. The locking hole 121 includes a first hole portion 1211 and a second hole portion 1212 that are connected. The first hole portion 1211 is formed in the connecting block 122, and the second hole portion 1212 is formed in the locking protrusion 123. In this way, the anti-locking push rod 3 can be inserted into the second hole portion 1212 and the first hole portion 1211 in sequence, thereby increasing the insertion depth of the anti-locking push rod 3. This increases the contact area and fitting accuracy between the anti-locking push rod 3 and the locking hole 121, thereby enhancing the stability of the anti-locking.

[0036] As shown in Figures 3, 4, and 5, more preferably, in this embodiment, the shell body 11 is provided with a mounting groove 114, and the connecting block 122 is embedded in the mounting groove 114. Thus, on the one hand, this design provides precise positioning for the connecting block 122. During installation, the connecting block 122 can be accurately embedded in the mounting groove 114, ensuring the relative positional accuracy between the limiting member 12 and the shell body 11. On the other hand, the embedding of the connecting block 122 in the mounting groove 114 increases the contact area between the connecting block 122 and the shell body 11, thereby enhancing their connection strength. When the handle lock is subjected to external force, such as an attempt to forcibly rotate the handle head 21, the strong connection between the connecting block 122 and the shell body 11 can better resist the external force, preventing the limiting member 12 from loosening or falling off, ensuring the overall structural stability of the handle lock. Furthermore, the embedded installation method makes the space occupied by the connecting block 122 in the mounting groove 114 more reasonable, reducing the occupation of external space, which is particularly important for the miniaturization design of the handle lock.

[0037] It should be noted that in some other embodiments, the connecting block 122 may also be connected to the shell body 11 by means of screws or pins, depending on the actual needs, and is not limited to one.

[0038] As shown in Figures 3, 4, and 5, preferably, in this embodiment, the mounting groove 114 has a bottom wall 1141, which is recessed from the second side 112 towards the first side 111, and the bottom wall 1141 is provided with an opening 1142; the connecting block 122 abuts against the bottom wall 1141, and the locking protrusion 123 at least partially protrudes from the opening 1142 and at least partially protrudes from the first side 111. This configuration has the following technical effects:

[0039] First, the bottom wall 1141 of the mounting groove 114 is recessed from the second side 112 to the first side 111. This design makes the mounting groove 114 form a concave structure inside the shell body 11, providing a more compact installation space for the connecting block 122. This avoids occupying too much space inside the shell body 11 due to the installation of the connecting block 122, which is beneficial to the assembly between the lock body 4 and the receiving cavity 113, and also beneficial to the miniaturization and compact design of the overall lever lock.

[0040] Secondly, the bottom wall 1141 of the groove is provided with an opening 1142, and the locking protrusion 123 protrudes at least partially from the opening 1142 and at least partially from the first side 111. This structure ensures the stable installation of the connecting block 122 while allowing the locking protrusion 123 to protrude precisely from the first side 111, providing a suitable position for the locking hole 121. This satisfies the functional requirement of inserting the anti-locking push rod 3 into the locking hole 121, and does not affect the installation of other components of the lever lock or the overall aesthetics due to the excessive protrusion of the locking protrusion 123. It achieves a good balance between space utilization and functional realization.

[0041] Furthermore, although the design of the opening 1142 causes the locking protrusion 123 to protrude, the abutting relationship between the bottom wall 1141 of the groove and the connecting block 122, as well as the structure around the opening 1142, still provides a certain degree of support and reinforcement for the locking protrusion 123. This structure enhances the connection strength between the locking protrusion 123 and the shell body 11, enabling the locking protrusion 123 to withstand greater external forces without being easily damaged, thus improving the overall structural strength and durability of the lever lock.

[0042] It should be noted that in some other embodiments, the mounting slot 114 may also be disposed through the first side 111 and the second side 112, depending on the actual needs.

[0043] As shown in Figures 3, 4 and 5, more preferably, in this embodiment, the mounting groove 114 has a first groove sidewall 1144 and a second groove sidewall 1145 disposed opposite to each other. The length of the first groove sidewall 1144 is greater than the length of the second groove sidewall 1145. The first groove sidewall 1144 and the second groove sidewall 1145 are both connected to the groove bottom wall 1141. The connecting block 122 is embedded between the first groove sidewall 1144, the second groove sidewall 1145 and the groove bottom wall 1141. This design has two advantages. First, the three-way limiting mechanism makes the position of the connecting block 122 within the mounting groove 114 more fixed, effectively preventing displacement or shaking. For example, when the handle lock is subjected to external impact or vibration, the first groove sidewall 1144 and the second groove sidewall 1145 can constrain the connecting block 122 from both sides, while the groove bottom wall 1141 provides support from the bottom, jointly ensuring the connection stability between the connecting block 122 and the housing body 11. This ensures that the limiting member 12 can function stably and reliably realize the anti-locking function of the handle lock. Second, because the connecting block 122 is limited in three directions, it has stronger resistance to torque. During the use of the handle lock, the handle... The rotation of lever 21 may generate a certain torque that is transmitted to the connecting block 122. This structure can effectively disperse and resist this torque, preventing the connecting block 122 from loosening or being damaged due to torque, thus improving the overall structural strength and stability of the lever lock. Furthermore, the design of the connecting block 122 being embedded between the first groove side wall 1144, the second groove side wall 1145, and the groove bottom wall 1141 provides clear positioning and guidance for the installation of the connecting block 122. During the installation process, the connecting block 122 can be smoothly embedded into the installation groove 114 along the contour of the groove side wall and the groove bottom wall 1141 without the need for complex adjustments and calibrations. This greatly simplifies the installation steps and improves installation efficiency. Even non-professionals can complete the installation work based on this clear structural design.

[0044] It should be noted that in some other embodiments, the lengths of the first groove sidewall 1144 and the second groove sidewall 1145 can be set to be equal, and can be selected according to actual needs.

[0045] As shown in Figures 2 and 3, preferably, in this embodiment, the limiting member 12 further includes a limiting ear 124, which is connected at the junction between the locking protrusion 123 and the connecting block 122. The opening 1142 has a limiting port 1143 that is adapted to the limiting ear 124, and the limiting ear 124 is engaged in the limiting port 1143. Thus, on the one hand, the limiting ear 124 connects to the junction between the locking protrusion 123 and the connecting block 122, and is engaged within the limiting port 1143 of the opening 1142. This engaging structure provides additional fixing force to the limiting member 12, effectively preventing relative displacement or separation of the locking protrusion 123 and the connecting block 122 within the mounting groove 114. On the other hand, the presence of the limiting ear 124 enhances the connection strength between the locking protrusion 123 and the connecting block 122, enabling the entire limiting member 12 to better resist deformation under external forces. When the lever lock is subjected to a large torque or other external forces, the limiting ear 124 and the limiting port 1143... The combination of these components can distribute stress and prevent the locking protrusion 123 and connecting block 122 from deforming due to excessive local stress, thereby extending the service life of the lever lock. On the other hand, the matching design of the limiting ear 124 and the limiting port 1143 provides precise positioning for the limiting component 12 during installation. During installation, the limiting ear 124 can accurately fit into the limiting port 1143, ensuring the positional accuracy of the locking protrusion 123 and connecting block 122 relative to the mounting groove 114. This helps to ensure that the anti-locking push rod 3 can be accurately inserted into the locking hole 121 to achieve precise locking function and avoid anti-locking difficulties or failures caused by positional deviations.

[0046] As shown in Figures 4 and 5, preferably, in this embodiment, the limiting member 12 is further provided with a first locking block 125, and a connecting post 115 for connecting the lock body 4 is provided in the receiving cavity 113. A first locking groove 116 is provided on the outer wall of the connecting post 115, and the first locking block 125 engages with the first locking groove 116. Thus, the first locking block 125 on the limiting member 12 engages with the first locking groove 116 of the connecting post 115 in the receiving cavity 113. This engaging structure effectively prevents relative movement between the limiting member 12 and the lock body 4. During the use of the lever lock, whether the handle head 21 is rotated or subjected to external vibrations or impacts, the tight cooperation between the first locking block 125 and the first locking groove 116 ensures that the limiting member 12 always remains in the correct position, guaranteeing the stability and reliability of the locking function. For example, when someone attempts to forcibly rotate the handle head 21, the limiting member 12 will not be displaced from the lock body 4 due to external force, thereby ensuring the safety of the lever lock.

[0047] As shown in Figures 4 and 5, specifically in this embodiment, the first locking block 125 is connected to the connecting block 122, and the first locking block 125 protrudes in a direction away from the first side 111.

[0048] Preferably, in this embodiment, two limiting members 12 are provided, and the two limiting members 12 are spaced apart on the lock body 4. In this way, when it is necessary to lock, the anti-locking push rod 3 can be selectively inserted into the locking hole 121 of the limiting member 12 according to the actual installation requirements or actual use requirements.

[0049] It should be noted that in some other embodiments, the number of limiting members 12 may be, but is not limited to, one, three or four, etc., and can be selected according to actual needs. There is no unique limitation here.

[0050] As shown in Figures 6 and 7, this embodiment of the present invention also provides a lever lock, including the lock housing structure 1 as described above, and further including a lever assembly 2, a lock body 4, and a deadbolt 3; the lock body 4 is disposed in the receiving cavity 113, the lever assembly 2 includes a gripping part 22 and a lever head 21, the lever head 21 is rotatably connected to the first side 111, and the gripping part 22 is connected to the lever head 21; the deadbolt 3 is slidably disposed on the lever head 21, and the deadbolt 3 can slide between a first position and a second position; when in the first position, the deadbolt 3 is separated from the locking hole 121, and the lever head 21 can rotate relative to the housing body 11; when in the second position, the deadbolt 3 is inserted into the locking hole 121 to fix the relative position of the lever head 21 and the housing body 11, thereby restricting the rotation of the lever head 21. Thus, on the one hand, the transmission ring 41 is located within the receiving cavity 113 and is connected to the handle head 21 via a transmission mechanism, while also being connected to the latch through a transmission structure. This design ensures that the rotation of the handle head 21 is accurately transmitted to the transmission ring 41, which then drives the latch to move. During the operation of the handle head 21, the transmission ring 41, as an intermediate transmission component, plays a role in stably transmitting power, ensuring a precise correspondence between the rotation angle of the handle head 21 and the movement distance of the latch, thereby achieving reliable control of the latch by the handle head 21 and ensuring the normal opening and closing function of the door lock. On the other hand, the transmission structure between the transmission ring 41 and the latch is rationally designed, which can effectively reduce errors in the transmission process. For example, using appropriate gear transmission, linkage transmission, etc., can make the power transmission smoother and more accurate, avoiding the problem of the latch not moving in place or moving excessively due to excessive transmission errors, thus improving the operating accuracy and reliability of the door lock. It is understood that this handle lock has all the advantages of the lock shell structure 1 described above, which will not be elaborated further here.

[0051] As shown in Figures 4 and 5, specifically in this embodiment, the lock body 4 also includes a transmission ring 41 and a latch (not shown). The transmission ring 41 is disposed in the receiving cavity 113 and is connected to the handle head 21. The transmission ring 41 is also connected to the latch through a transmission structure. Driven by the handle head 21, the transmission ring 41 can rotate and drive the latch to move through the transmission structure. Preferably, part of the structure of the limiting member 12 is connected to the second side 112, and the transmission ring 41 presses against the limiting member 12 to fix the limiting member 12. Thus, on the one hand, the transmission ring 41 presses against the limiting member 12 to fix it. This pressing and fixing method can ensure that the limiting member 12 always maintains a stable position during the operation of the lever lock. When the handle head 21 rotates and drives the transmission ring 41 to rotate, the pressing force between the transmission ring 41 and the limiting member 12 can prevent the limiting member 12 from displacing or shaking. For example, when the lever lock is frequently opened and closed or subjected to external vibrations, the limiting member 12 can still accurately perform its limiting function, ensuring that the rotation range of the handle head 21 meets the design requirements. This prevents malfunctions of the lever lock caused by changes in the position of the limiting member 12. On the other hand, the pressing relationship between the transmission ring 41 and the limiting member 12 enhances the integrity of the internal structure of the lever lock. As an important limiting component of the lever lock, the stability of the position of the limiting member 12 is crucial for the normal operation of the entire lever lock. Through pressing and fixing with the transmission ring 41, the limiting member 12 and the transmission ring 41 form a relatively stable structural unit, which helps to improve the stability and reliability of the overall structure of the lever lock and reduce failures caused by loose parts.

[0052] As shown in Figures 4 and 5, specifically in this embodiment, a connecting ring protrusion 117 is provided inside the receiving cavity 113, and the transmission ring 41 is sleeved on the connecting ring protrusion 117. Preferably, a second slot 118 is provided on the outer wall of the connecting ring protrusion 117, and the limiting member 12 is also provided with a second locking block 126, which is engaged in the second slot 118. In this way, the engaging structure increases the connection strength between the limiting member 12 and the lock body 4. After the second locking block 126 is embedded in the second slot 118, the two interlock, which can withstand greater external forces and is not easy to separate. This makes the connection between the limiting member 12 and the lock body 4 still firm and not easily damaged when the limiting member 12 is subjected to large torque or other external forces.

[0053] As shown in Figures 4 and 5, specifically in this embodiment, the second locking block 126 is connected to the connecting block 122, and the second locking block 126 protrudes in a direction away from the first side 111.

[0054] As shown in Figure 6, preferably, in this embodiment, the handle head 21 is provided with a limiting groove 211, and the deadbolt 3 slides in the limiting groove 211. The limiting groove 211 provides a clear sliding track and travel range for the deadbolt 3. This precise travel control ensures that the deadbolt 3 can accurately reach the specific position required for deadbolting or unlocking, thereby reliably realizing the deadbolting and unlocking functions of the door lock.

[0055] It should be noted that in this embodiment, the anti-locking drive structure 5 used to drive the anti-locking push rod 3 is an existing technical means. The anti-locking drive structure 5 can be, but is not limited to, a gear and rack mechanism or a cam slider mechanism, etc. It is only necessary to be able to drive the anti-locking push rod 3 to move back and forth between the first position and the second position. It can be selected according to actual needs, and there is no unique limitation here.

[0056] Specifically, in this embodiment, the lock shell structure 1 is a handle seat structure that covers the lock body 4.

[0057] In summary, the lock housing structure 1 and the lever lock including it disclosed in this utility model can bring at least the following beneficial technical effects:

[0058] 1) It can avoid the difficulty of integrally molding the locking hole 121 and the boss in the shell body 11, reduce the production difficulty and production cost of the shell body 11, and also avoid the problem of affecting the internal parts of the shell body 11 due to increasing the insertion depth of the anti-locking push rod 3 in the shell body 11.

[0059] 2) The anti-locking push rod 3 can be inserted into the second hole 1212 and the first hole 1211 in sequence, thereby increasing the insertion depth of the anti-locking push rod 3. This increases the contact area and fitting accuracy between the anti-locking push rod 3 and the locking hole 121, thereby enhancing the stability of the anti-locking.

[0060] 3) The connecting block 122 is embedded in the mounting groove 114. This design can provide precise positioning for the connecting block 122. During the installation process, the connecting block 122 can be accurately embedded in the mounting groove 114, ensuring the relative positional accuracy between the limiting member 12 and the shell body 11.

[0061] 4) The connecting block 122 is embedded in the mounting groove 114, which increases the contact area between the connecting block 122 and the shell body 11, thereby enhancing the connection strength between them. When the handle lock is subjected to external force, such as if someone tries to forcibly turn the handle head 21, the firm connection between the connecting block 122 and the shell body 11 can better resist the external force, prevent the limiting part 12 from loosening or falling off, and ensure the overall structural stability of the handle lock.

[0062] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A lock housing structure (1) for a lever lock, the lever lock comprising a lever head (21), a deadbolt (3) and a lock body (4), the deadbolt (3) being slidably disposed on the lever head (21), characterized in that: The lock housing structure (1) includes a housing body (11) and a limiting member (12). The housing body (11) has a first side (111) and a second side (112). The first side (111) is used to provide a handle head (21), and the second side (112) forms a receiving cavity (113). The receiving cavity (113) is used to provide a lock body (4). The limiting member (12) is detachably connected to the housing body (11). The limiting member (12) is provided with a locking hole (121). The locking hole (121) protrudes at least partially from the first side (111) in a direction away from the second side (112). The locking hole (121) is used to insert a deadbolt push rod (3) to limit the rotation of the handle head (21).

2. The locking shell structure (1) according to claim 1, characterized in that, The limiting member (12) includes a connecting block (122) and a locking protrusion (123). The connecting block (122) is detachably connected to the shell body (11). The locking protrusion (123) is connected to the connecting block (122). The locking protrusion (123) protrudes at least partially from the first side (111) in a direction away from the second side (112). The locking hole (121) includes a first hole (1211) and a second hole (1212) that are connected to each other. The first hole (1211) is opened in the connecting block (122), and the second hole (1212) is opened in the locking protrusion (123).

3. The locking shell structure (1) according to claim 2, characterized in that, The shell body (11) is provided with a mounting groove (114), and the connecting block (122) is embedded in the mounting groove (114).

4. The locking shell structure (1) according to claim 3, characterized in that, The mounting groove (114) has a groove bottom wall (1141) that is recessed from the second side (112) toward the first side (111). The groove bottom wall (1141) is provided with an opening (1142). The connecting block (122) abuts against the groove bottom wall (1141). The locking protrusion (123) protrudes at least partially from the opening (1142) and at least partially from the first side (111).

5. The locking shell structure (1) according to claim 4, characterized in that, The mounting groove (114) has a first groove sidewall (1144) and a second groove sidewall (1145) arranged opposite to each other. The length of the first groove sidewall (1144) is greater than the length of the second groove sidewall (1145). The first groove sidewall (1144) and the second groove sidewall (1145) are both connected to the groove bottom wall (1141). The connecting block (122) is embedded between the first groove sidewall (1144), the second groove sidewall (1145) and the groove bottom wall (1141).

6. The locking shell structure (1) according to claim 4, characterized in that, The limiting member (12) further includes a limiting ear (124), which is connected at the junction between the locking protrusion (123) and the connecting block (122). The opening (1142) has a limiting port (1143) adapted to the limiting ear (124), and the limiting ear (124) is engaged in the limiting port (1143).

7. The locking shell structure (1) according to any one of claims 1-6, characterized in that, The limiting member (12) is also provided with a first locking block (125), and a connecting post (115) for connecting the lock body (4) is provided in the receiving cavity (113). A first slot (116) is provided on the outer side wall of the connecting post (115), and the first locking block (125) is engaged in the first slot (116).

8. The locking shell structure (1) according to any one of claims 1-6, characterized in that, At least two limiting members (12) are provided, and at least two limiting members (12) are spaced apart on the lock body (4).

9. A lever lock, characterized in that, The lock housing structure (1) as described in any one of claims 1-8 further includes a handle, a lock body (4), and a deadbolt (3); the lock body (4) is disposed within the receiving cavity (113); the handle includes a grip portion (22) and a handle head (21); the handle head (21) is rotatably connected to the first side (111); the grip portion (22) is connected to the handle head (21); and the deadbolt (3) is slidably disposed on the handle head (21). The anti-locking push rod (3) can slide between a first position and a second position; when in the first position, the anti-locking push rod (3) and the locking hole (121) are separated, and the handle head (21) can rotate relative to the shell body (11); when in the second position, the anti-locking push rod (3) is inserted into the locking hole (121) to fix the relative position of the handle head (21) and the shell body (11), thereby restricting the rotation of the handle head (21).

10. The lever lock according to claim 9, characterized in that, The lock body (4) also includes a transmission ring (41) and a lock tongue. The transmission ring (41) is disposed in the receiving cavity (113). The transmission ring (41) is connected to the handle head (21) through a transmission structure. The transmission ring (41) is also connected to the lock tongue through a transmission structure. Under the drive of the handle head (21), the transmission ring (41) can rotate and drive the lock tongue to move through the transmission structure. Part of the structure of the limiting member (12) is connected to the second side (112). The transmission ring (41) presses against the limiting member (12) to fix the limiting member (12).

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