Handcart hole lock

Abstract

The utility model discloses a handcart hole lock. The handcart hole lock comprises a base, at least two sliding blocks, a driving assembly and a locking module. Wherein the base is provided with a locking hole corresponding to a handcart hole of the cabinet door. And the sliding block is arranged on the base in a sliding manner along the radial direction of the locking hole and is provided with a clamping part extending into the handcart hole. And the driving assembly is in transmission connection with the at least two sliding blocks so as to respectively drive each sliding block to slide along the radial direction of the locking hole, so that the clamping part of each sliding block is matched with the peripheral wall of the handcart hole, and the base is fixedly arranged in the handcart hole. And the locking module is mounted on the base and is used for shielding the locking hole during locking. According to the technical scheme, the installation steps of the handcart hole lock are simplified, and the handcart hole lock can be conveniently installed on the cabinet door.

Description

Technical Field

[0001] The present application relates to the technical field of lock devices, and in particular to a handcart hole lock. Background Art

[0002] A trolley hole is generally provided on the door of the switch cabinet to be used to swing the circuit breaker or functional trolley from the test position to the working position. However, the trolley hole is generally exposed outside the door of the switch cabinet, and other personnel can also operate it without authorization, which is very unsafe.

[0003] In order to improve the safety of the switch cabinet, a trolley hole lock is usually installed on the trolley hole. When the switch cabinet does not need to be operated, the trolley hole can be blocked by the locking component of the trolley hole lock to prevent other people from operating without authorization. When the switch cabinet needs to be operated, the trolley hole lock can be unlocked to allow the blocking piece of the locking component to avoid the trolley hole for the operator to operate.

[0004] In the prior art, a trolley hole lock is usually fixed to a cabinet door using a screw structure, but the cabinet door usually does not have holes that cooperate with the screw structure. Therefore, workers are required to drill holes in the cabinet door for the installation of the trolley hole lock. However, drilling operations cannot be performed when the switch cabinet is energized, making the installation of the trolley hole lock inconvenient. Utility Model Content

[0005] The main purpose of this application is to provide a trolley hole lock, which aims to improve the problem that the existing trolley hole lock needs to be drilled on the cabinet door during installation, but the drilling operation cannot be performed when the switch cabinet is energized, resulting in inconvenience in the installation of the trolley hole lock.

[0006] To achieve the above-mentioned purpose, the present application proposes a handcart hole lock, which includes a base, at least two sliders, a drive assembly, and a locking module; wherein,

[0007] The base is provided with a locking hole corresponding to the trolley hole of the cabinet door;

[0008] The slider is slidably mounted on the base along the radial direction of the locking hole and has a locking portion extending into the trolley hole;

[0009] The driving assembly is in transmission connection with at least two of the sliders to drive each of the sliders to slide radially along the locking hole, so that the engaging portion of each slider engages with the peripheral wall of the trolley hole to fix the base in the trolley hole;

[0010] The locking module is installed on the base and is used to cover the locking hole when locking.

[0011] In some embodiments of the present application, the drive assembly includes a transmission ring, which is rotatably mounted on the base. The transmission ring is provided with a first planar thread on one side in the thickness direction, and the slider is provided with a second planar thread engaged with the first planar thread.

[0012] In some embodiments of the present application, the drive assembly further includes a drive member, which is mounted on the base and is in transmission connection with the transmission ring to drive the slider to slide radially along the locking hole through the transmission ring.

[0013] In some embodiments of the present application, a transmission portion is provided on the circumferential side of the transmission ring, the driving member is rotatably mounted on the base, and the driving member is provided with a driving portion that cooperates with the transmission portion in transmission.

[0014] In some embodiments of the present application, a plurality of transmission grooves are concavely formed on the circumferential side of the transmission ring, and the plurality of transmission grooves are spaced apart along the circumference of the transmission ring to form the transmission portion;

[0015] The driving portion includes two driving posts. When the driving member is driven to rotate, the two driving posts are alternately in contact with the plurality of transmission grooves to drive the transmission ring to rotate.

[0016] In some embodiments of the present application, the slider includes a plate body and the locking portion, the plate body is arranged parallel to the surface of the cabinet door, the second plane thread is provided on the side of the plate body facing away from the cabinet door, the locking portion is connected to the side of the plate body facing away from the second plane thread, and is perpendicular to the plate body.

[0017] In some embodiments of the present application, the locking portion is provided with an arc surface, which is adapted to the peripheral wall of the trolley hole and abuts against the peripheral wall of the trolley hole. The locking portion is also provided with a locking flange on the side of the arc surface away from the plate body.

[0018] In some embodiments of the present application, the base is provided with at least two slide grooves, and each of the slide grooves extends radially along the locking hole, and a slider is slidably mounted on each of the slide grooves.

[0019] In some embodiments of the present application, the locking module includes a blocking component and a locking component. The blocking component is movably mounted on the base and has a blocking state and a non-blocking state relative to the locking hole. The locking component is mounted on the base and cooperates with the blocking component when the blocking component is in the blocking state to limit the movement of the blocking component.

[0020] In some embodiments of the present application, the base includes an annular boss, and the annular boss is provided with the locking hole;

[0021] The shielding assembly includes a drive shell and a baffle, the baffle is rotatably mounted on the annular boss, the drive shell is provided with a through hole corresponding to the locking hole, the drive shell is rotatably mounted on the annular boss, and forms an accommodating space for accommodating the baffle with the annular boss, and the drive shell is also transmission-connected to the baffle to drive the baffle to extend out of the accommodating space and block the locking hole.

[0022] In some embodiments of the present application, the trolley hole lock also includes an elastic member, which is installed between the annular boss and the drive shell. The elastic member provides elastic force to drive the drive shell, so that the drive shell has a movement tendency to drive the baffle back to the accommodating space.

[0023] In some embodiments of the present application, the elastic member is a torsion spring, which includes a spiral body and two elastic arms respectively connected to the spiral body. The spiral body is installed on the annular boss, one elastic arm elastically abuts against the annular boss, and the other elastic arm elastically abuts against the drive shell, so that the drive shell has a movement tendency to drive the baffle back to the accommodating space.

[0024] In some embodiments of the present application, a square limiting hole is provided on a circumferential side of the drive housing, the locking assembly is rotatably mounted on the base, the locking assembly includes a movably arranged locking rod, one end of the locking rod is provided with a locking block, the locking block is plugged into and engaged with the limiting hole to limit the rotation of the drive housing;

[0025] At least two adjacent abutment surfaces are provided on the circumferential side of the locking block. When the locking block is plugged into the limiting hole, the hole wall of the locking hole abuts against the corresponding abutment surfaces, and the locking rod can rotate relative to the locking hole to switch different abutment surfaces to abut against the hole wall of the locking hole.

[0026] The trolley hole lock provided in the embodiment of the present application is arranged with the above-mentioned structure. When the trolley hole lock is installed on the cabinet door of the switch cabinet, the locking hole of the base is first placed corresponding to the trolley hole of the cabinet door, and then the driving component drives at least two sliders to slide simultaneously toward the hole center away from the trolley hole, that is, at least two sliders spread out from the hole center of the trolley hole, so that the engaging portion of each slider cooperates with the peripheral wall of the trolley hole, and at least two sliders can tighten the peripheral wall of the trolley hole, thereby fixing it on the trolley hole. In this way, the base is fixed to the trolley hole, and the purpose of installing the trolley hole lock on the cabinet door of the switch cabinet can be achieved. It can be seen that compared with the prior art, the technical solution of the present application does not require drilling on the door of the switch cabinet when installing the trolley hole lock on the cabinet door of the switch cabinet. It only requires driving at least two sliders through the driving component to slide simultaneously toward the center of the hole away from the trolley hole, so that at least two sliders tighten the surrounding wall of the trolley hole, and the trolley hole lock can be quickly installed on the cabinet door of the switch cabinet, thereby simplifying the installation steps of the trolley hole lock and facilitating the installation of the trolley hole lock on the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 This is a structural diagram of an embodiment of a handcart hole lock of the present application;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the middle hand car hole lock when unlocking;

[0030] Figure 3 for Figure 2 Another perspective of the middle-hand car hole lock;

[0031] Figure 4 for Figure 2 Cross-sectional view of the middle hand turning hole lock;

[0032] Figure 5 for Figure 2 Exploded view of the middle-hand car hole lock;

[0033] Figure 6 for Figure 5 Assembly drawing of the middle drive assembly and the slider;

[0034] Figure 7 for Figure 2 Another exploded view of the Zhongtou car hole lock.

[0035] Description of Figure Numbers:

[0036] 10. Base; 11. Annular boss; 111. Locking hole; 112. Mounting slot; 113. Avoidance slot; 20. Slider; 21. Engaging portion; 211. Arc surface; 212. Locking flange; 22. Plate; 221. Second flat thread; 30. Drive assembly; 31. Transmission ring; 311. First flat thread; 312. Transmission slot; 32. Drive member; 321. Drive column; 40. Locking Module; 41. Shielding component; 411. Drive housing; 4111. Through hole; 4112. Limiting hole; 4113. Drive pin; 4114. Push rib; 4115. Avoidance hole; 412. Blocking piece; 4121. Drive slot; 42. Locking component; 421. Locking rod; 4211. Locking block; 50. Torsion spring; 51. Spiral body; 52. Elastic arm; 200. Cabinet door; 201. Cart hole.

[0037] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] The embodiment of the present application proposes a handcart hole lock, which is used to be installed on the cabinet door 200 of the switch cabinet. In order to facilitate the installation of the handcart hole lock on the cabinet door 200, the embodiment of the present application makes improvements to the handcart hole lock. Figures 1 to 7 In an embodiment of the present application, the trolley hole lock includes a base 10 , at least two sliders 20 , a driving assembly 30 , and a locking module 40 .

[0042] The base 10 is provided with a locking hole 111 corresponding to the trolley hole 201 of the cabinet door 200. The base 10 mainly provides a mounting location for other components of the trolley hole lock. The locking hole 111 corresponds to the trolley hole 201 in that the diameter of the locking hole 111 is similar to or equal to the diameter of the trolley hole 201, and the shape of the locking hole 111 is generally the same as the shape of the trolley hole 201, that is, when the trolley hole 201 is a round hole, the locking hole 111 is also a round hole, and when the trolley hole 201 is a square hole, the locking hole 111 is also a square hole.

[0043] It can be understood that the cabinet door 200 has an inner side and an outer side facing each other, wherein the outer side of the cabinet door 200 is exposed to the external environment, and the inner side of the cabinet door 200 is located inside the switch cabinet, and the main structure of the trolley hole lock is installed on the outer side of the cabinet door 200. When the trolley hole lock is installed on the cabinet door 200, the locking hole 111 is adjacent to the trolley hole 201, and some operating tools can enter the inner side of the cabinet door 200 through the locking hole 111 and the trolley hole 201.

[0044] The slider 20 is slidably mounted on the base 10 along the radial direction of the locking hole 111 and has an engaging portion 21 that extends into the trolley hole 201. There are various ways to configure the slider 20 to be slidably mounted on the base 10. In one configuration, the slider 20 directly slides against the base 10 to be slidably mounted on the base 10. In another configuration, the base 10 is provided with a guide rail extending along the radial direction of the locking hole 111, and the slider 20 slides against the guide rail to be slidably mounted on the base 10.

[0045] When there are two sliders 20, preferably, the two sliders 20 are slidably mounted on the base 10 along the same diameter, that is, the two sliders 20 are located on opposite sides of the trolley hole 201. When there are three sliders 20, preferably, the three sliders 20 are evenly distributed along the circumference of the trolley hole 201.

[0046] The driving assembly 30 is in transmission connection with at least two sliders 20 to drive each slider 20 to slide radially along the locking hole 111, so that the engaging portion 21 of each slider 20 cooperates with the peripheral wall of the trolley hole 201 to fix the base 10 in the trolley hole 201.

[0047] It should be emphasized that the drive assembly 30 drives each slider 20 to slide radially along the locking hole 111 synchronously, that is, the drive assembly 30 drives at least two sliders 20 to slide at the same time, so that at least two sliders 20 slide toward or away from the center of the trolley hole 201 at the same time.

[0048] The locking module 40 is mounted on the base 10 and is used to block the locking hole 111 when locked. It will be understood that when locked, the locking module 40 blocks the locking hole 111. Since the locking hole 111 is arranged corresponding to the trolley hole 201, the locking module 40 also blocks the trolley hole 201, thereby preventing unauthorized operation. When unlocked, the locking module 40 no longer blocks the locking hole 111, that is, no longer blocks the trolley hole 201, allowing the operator to operate.

[0049] The trolley hole lock provided in the embodiment of the present application is arranged with the above-mentioned structure. When the trolley hole lock is installed on the cabinet door 200 of the switch cabinet, the locking hole 111 of the base 10 is first placed corresponding to the trolley hole 201 of the cabinet door 200, and then the driving component 30 drives at least two sliders 20 to slide simultaneously toward the hole center away from the trolley hole 201, that is, at least two sliders 20 spread out from the hole center of the trolley hole 201, so that the engaging portion 21 of each slider 20 cooperates with the peripheral wall of the trolley hole 201, and at least two sliders 20 can tighten the peripheral wall of the trolley hole 201, thereby fixing it on the trolley hole 201, thereby fixing the base 10 to the trolley hole 201, and the purpose of installing the trolley hole lock on the cabinet door 200 of the switch cabinet can be achieved. It can be seen that compared with the prior art, the technical solution of the present application does not require drilling on the cabinet door 200 of the switch cabinet when installing the trolley hole lock on the cabinet door 200 of the switch cabinet. It is only necessary to drive at least two sliders 20 through the driving component 30 to slide simultaneously toward the center of the hole away from the trolley hole 201, so that at least two sliders 20 tighten the surrounding wall of the trolley hole 201, and the trolley hole lock can be quickly installed on the cabinet door 200 of the switch cabinet, thereby simplifying the installation steps of the trolley hole lock and facilitating the installation of the trolley hole lock on the cabinet door 200.

[0050] It can be understood that when the trolley hole 201 is removed, the drive assembly 30 drives at least two sliders 20 to slide toward the center of the hole close to the trolley hole 201 at the same time, that is, at least two sliders 20 shrink with the center of the hole of the trolley hole 201, and the engaging portion 21 of each slider 20 will be separated from the peripheral wall of the trolley hole 201, so that the base 10 is separated from the trolley hole 201, thereby removing the trolley hole lock.

[0051] In some examples, such as Figures 1 to 6As shown, the driving assembly 30 includes a transmission ring 31, which is rotatably mounted on the base 10. The transmission ring 31 is provided with a first planar thread 311 on one side in the thickness direction, and the slider 20 is provided with a second planar thread 221 engaged with the first planar thread 311.

[0052] This arrangement is intended to achieve transmission through the engagement of the first flat thread 311 with the second flat thread 221, making the transmission of the transmission ring 31 to the slider 20 more stable and efficient. At the same time, the force applied to each slider 20 is almost the same, thereby ensuring that the sliding stroke of each slider 20 is equal.

[0053] In some examples, such as Figures 1 to 6 As shown, the driving assembly 30 further includes a driving member 32 , which is mounted on the base 10 and is in driving connection with the transmission ring 31 , so as to drive the slider 20 to slide radially along the locking hole 111 through the transmission ring 31 .

[0054] This arrangement is intended to facilitate the staff to use the driving member 32 to drive the transmission ring 31 to rotate, so as to drive the slider 20 to slide along the radial direction of the locking hole 111 through the transmission ring 31. The direction of the force can be changed by the driving member 32 to facilitate the staff's operation.

[0055] It will be appreciated that in some specific examples, the driving member 32 may include a motor fixedly mounted on the base 10, with the motor's output shaft drivingly connected to the transmission ring 31, thereby driving the transmission ring 31 to rotate. In other specific examples, the driving member 32 may include a gear and a handle fixedly connected to the gear. The gear is rotatably mounted on the base 10 and meshes with the transmission ring 31. A staff member rotates the gear using the handle to drive the transmission ring 31. There are many other forms of the driving member 32, which will not be described here one by one.

[0056] In some examples, such as Figure 5 and Figure 6 As shown, a transmission portion is provided on the circumferential side of the transmission ring 31 , and a driving member 32 is rotatably mounted on the base 10 . The driving member 32 is provided with a driving portion that cooperates with the transmission portion.

[0057] In some specific examples, the transmission part includes straight teeth, and the driving member 32 includes a spur gear. The spur gear meshes with the straight teeth to achieve a transmission connection between the driving member 32 and the transmission ring 31. At this time, the axis of rotation of the driving member 32 and the axis of rotation of the transmission ring 31 are parallel to each other.

[0058] In some specific examples, the transmission part includes helical teeth, and the driving member 32 includes a bevel gear. The bevel gear is engaged with the driving member 32 to achieve a transmission connection with the transmission ring 31. At this time, the axis of rotation of the driving member 32 is perpendicular to the axis of rotation of the transmission ring 31.

[0059] In order to prevent other people from using the driving member 32 to disassemble the trolley hole lock, in some examples, the driving member 32 requires a specific tool to rotate, or the driving member 32 is hidden.

[0060] In some examples, such as Figure 5 and Figure 6 As shown, the transmission ring 31 is provided with a plurality of transmission grooves 312 at intervals along the circumference of the transmission ring 31 to form a transmission unit. The driving unit includes two drive posts 321. When the driving member 32 is driven to rotate, the two drive posts 321 alternately engage the plurality of transmission grooves 312 to drive the transmission ring 31 to rotate.

[0061] To facilitate a detailed description of the alternating transmission abutment between the two drive posts 321 and the plurality of transmission slots 312, one of the two drive posts 321 is defined as the first drive post 321, and the other drive post 321 is defined as the second drive post 321. It is understood that during the rotation of the drive member 32, the first drive post 321 is in transmission abutment with one transmission slot 312, while the second drive post 321 gradually approaches the next transmission slot 312. Before the first drive post 321 is completely separated from the transmission slot 312, it is in transmission abutment with the next transmission slot 312. The first drive post 321 and the second drive post 321 are in transmission abutment with the plurality of transmission slots 312 in this alternating manner.

[0062] Such arrangement aims to improve the reliability and stability of the transmission between the driving member 32 and the transmission ring 31 by having the two driving columns 321 alternately abut against the multiple transmission grooves 312 .

[0063] In some examples, such as Figures 2 to 4 As shown, the slider 20 includes a plate body 22 and a locking portion 21. The plate body 22 is arranged parallel to the surface of the cabinet door 200. A second flat thread 221 is provided on the side of the plate body 22 facing away from the cabinet door 200. The locking portion 21 is connected to the side of the plate body 22 facing away from the second flat thread 221 and is perpendicular to the plate body 22. This arrangement is intended to ensure more stable engagement between the first flat thread 311 and the second flat thread 221, making the radial sliding of the slider 20 along the locking hole 111 smoother, and more accurately controlling the degree of tension applied by at least two sliders 20 to the peripheral wall of the hand-turned hole 201.

[0064] In some examples, such as Figures 2 to 4 As shown, the engaging portion 21 is provided with an arc surface 211, which is adapted to the peripheral wall of the trolley hole 201 and abuts against the peripheral wall of the trolley hole 201. The engaging portion 21 is further provided with a locking flange 212 on the side of the arc surface 211 away from the plate body 22.

[0065] This arrangement is intended to allow the arc surface 211 to abut against the peripheral wall of the trolley hole 201, allowing the engaging portion 21 to fit tightly with the trolley hole 201, dispersing the forces between the engaging portion 21 and the trolley hole 201 and preventing stress concentration from damaging the trolley hole 201. Furthermore, the locking flange 212 can abut against the cabinet door 200, preventing the trolley hole lock from falling off.

[0066] In some examples, such as Figures 1 to 6 As shown, the base 10 is provided with at least two slide grooves, each of which extends radially along the locking hole 111. A slider 20 is slidably mounted in each slide groove. This arrangement is intended to allow the slider 20 to slide against the groove wall of the slide groove, thereby improving the radial sliding stability of the slider 20 along the locking hole 111.

[0067] In some examples, such as Figures 2 to 7 As shown, the locking module 40 includes a shielding component 41 and a locking component 42. The shielding component 41 is movably mounted on the base 10 and has a shielding state and a non-blocking state relative to the locking hole 111. The locking component 42 is mounted on the base 10 and cooperates with the shielding component 41 when the shielding component 41 is in the shielding state to limit the movement of the shielding component 41.

[0068] This arrangement is intended to improve the reliability of the trolley hole lock by limiting the movement of the shielding component 41 through the locking component 42 and to prevent other people from operating it without authorization.

[0069] In some examples, such as Figures 5 and 6 As shown, the base 10 includes an annular boss 11, which is provided with a locking hole 111. The shielding assembly 41 includes a drive housing 411 and a blocking piece 412. The blocking piece 412 is rotatably mounted on the annular boss 11. The drive housing 411 is provided with a through hole 4111 corresponding to the locking hole 111. The drive housing 411 is rotatably mounted on the annular boss 11 and forms an accommodating space with the annular boss 11 to accommodate the blocking piece 412. The drive housing 411 is also in driving connection with the blocking piece 412 to drive the blocking piece 412 to extend out of the accommodating space and block the locking hole 111.

[0070] This arrangement is intended to facilitate the drive housing 411 to drive the blocking piece 412 to extend out of the accommodating space to block the locking hole 111, and facilitate the drive housing 411 to drive the blocking piece 412 to retract into the accommodating space so that the blocking piece 412 is misaligned with the locking hole 111.

[0071] In some examples, the number of the blocking pieces 412 may be two or more. When the number of the blocking pieces 412 is two or more, the portions of the blocking pieces 412 extending out of the accommodating space may abut against each other.

[0072] In some specific examples, the blocking piece 412 is provided with a driving groove 4121, and a driving pin 4113 is protruded from the side of the driving housing 411 facing the annular boss 11 and is in driving contact with the driving groove 4121. When the driving housing 411 rotates relative to the annular boss 11, the driving pin 4113 slides and contacts the wall of the driving groove 4121, thereby driving the blocking piece 412 to rotate.

[0073] In some examples, when the blocking piece 412 blocks the locking hole 111, the driving shell 411 also blocks the driving member 32 mentioned above. When the blocking piece 412 and the locking hole 111 are misaligned, the driving shell 411 avoids the driving member 32 mentioned above. In a specific example, Figure 7 As shown, the drive shell 411 is provided with an avoidance hole 4115. When the baffle 412 blocks the locking hole 111, the avoidance hole 4115 is misaligned with the drive member 32, so that the drive shell 411 blocks the drive member 32. When the baffle 412 is misaligned with the locking hole 111, the avoidance hole 4115 is opposite to the drive member 32, so that the staff can operate the drive member 32.

[0074] In some examples, such as Figure 5 and Figure 7 As shown, the trolley hole lock also includes an elastic member, which is installed between the annular boss 11 and the drive shell 411. The elastic member provides elastic force to drive the drive shell 411, so that the drive shell 411 has a movement tendency to drive the blocking piece 412 to retreat into the accommodating space.

[0075] This setting is intended to provide elastic force through the elastic part. When the locking component 42 releases the restriction on the blocking component 41, the driving shell 411 can be quickly driven by the elastic force to move the blocking piece 412 back to the accommodating space, so that the blocking piece 412 is quickly dislocated from the locking hole 111, thereby improving the unlocking efficiency of the trolley hole lock.

[0076] Similarly, the number of elastic members can be two or more.

[0077] In some examples, the elastic member is an elastic rib, one end of which is fixedly connected to the driving housing 411 , and the other end of which is fixedly connected to the annular boss 11 .

[0078] In some examples, such as Figure 5 and Figure 7 As shown, the elastic member is a torsion spring 50, which includes a spiral body 51 and two elastic arms 52 respectively connected to the spiral body 51. The spiral body 51 is installed on the annular boss 11, one elastic arm 52 elastically abuts against the annular boss 11, and the other elastic arm 52 elastically abuts against the drive shell 411, so that the drive shell 411 has a movement tendency to drive the baffle 412 to retreat to the accommodating space.

[0079] This configuration is intended to stably provide elastic force to the driving housing 411 through the torsion spring 50 , thereby improving the stability of the driving housing 411 .

[0080] In some examples, such as Figure 5 and Figure 7 As shown, the annular boss 11 is provided with a mounting groove 112, and the spiral body 51 is mounted in the mounting groove 112. One elastic arm 52 elastically abuts against the groove wall of the mounting groove 112, and the other elastic arm 52 elastically abuts against the push rib 4114 on the drive housing 411. Furthermore, the annular boss 11 is provided with an avoidance groove 113 on its circumference to avoid the push rib 4114.

[0081] In some examples, such as Figure 1 、 Figure 2 and Figure 7 As shown, a square limiting hole 4112 is provided on the circumference of the drive housing 411. The locking assembly 42 is rotatably mounted on the base 10. The locking assembly 42 includes a movably arranged locking rod 421. A locking block 4211 is provided at one end of the locking rod 421. The locking block 4211 engages with the limiting hole 4112 to limit the rotation of the drive housing 411. At least two adjacent abutment surfaces are provided on the circumference of the locking block 4211. When the locking block 4211 engages with the limiting hole 4112, the wall of the locking hole 111 abuts against the corresponding abutment surfaces. The locking rod 421 can rotate relative to the locking hole 111 to switch between different abutment surfaces for abutment with the wall of the locking hole 111.

[0082] Among them, different angles such as 80 degrees, 90 degrees, and 100 degrees can be formed between two adjacent abutting surfaces. Preferably, the locking block 4211 is in a cube shape, and an angle of 90 degrees is formed between two adjacent abutting surfaces.

[0083] Such arrangement allows the locking assembly 42 to rotate relative to the base 10, so that the staff can operate the locking assembly 42. At the same time, when the locking assembly 42 rotates relative to the base 10, the abutting surface abuts against the wall of the locking hole 111, so that the locking assembly 42 can remain in a certain position and not move. When the locking rod 421 moves relatively, so that the locking block 4211 is separated from the limiting hole 4112, the locking assembly 42 can naturally fall back.

[0084] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A handcart hole lock, used for installation on the door of a switch cabinet, characterized in that: The handcart hole lock includes a base, at least two sliders, a drive assembly, and a locking module; wherein, The base is provided with a locking hole corresponding to the trolley hole of the cabinet door; The slider is slidably mounted on the base along the radial direction of the locking hole and has a locking portion extending into the trolley hole; The driving assembly is in transmission connection with at least two of the sliders to drive each of the sliders to slide radially along the locking hole, so that the engaging portion of each slider engages with the peripheral wall of the trolley hole to fix the base in the trolley hole; The locking module is installed on the base and is used to cover the locking hole when locking.

2. The handcart hole lock according to claim 1, characterized in that: The driving assembly includes a transmission ring, which is rotatably mounted on the base. The transmission ring is provided with a first planar thread on one side surface in the thickness direction, and the slider is provided with a second planar thread engaged with the first planar thread.

3. The handcart hole lock according to claim 2, characterized in that: The driving assembly further includes a driving member, which is mounted on the base and is in driving connection with the transmission ring so as to drive the slider to slide radially along the locking hole through the transmission ring.

4. The handcart hole lock according to claim 3, characterized in that: A transmission part is provided on the circumferential side of the transmission ring. The driving member is rotatably mounted on the base. The driving member is provided with a driving part that is in transmission cooperation with the transmission part.

5. The handcart hole lock according to claim 4, characterized in that: The transmission ring is provided with a plurality of transmission grooves on its circumferential side, and the plurality of transmission grooves are arranged at intervals along the circumference of the transmission ring to form the transmission portion; The driving portion includes two driving posts. When the driving member is driven to rotate, the two driving posts are alternately in contact with the plurality of transmission grooves to drive the transmission ring to rotate.

6. The handcart hole lock according to claim 2, characterized in that: The slider includes a plate body and the clamping portion. The plate body is arranged parallel to the surface of the cabinet door. The second plane thread is provided on the side of the plate body away from the cabinet door. The clamping portion is connected to the side of the plate body away from the second plane thread and is perpendicular to the plate body.

7. The handcart hole lock according to claim 6, characterized in that: The engaging portion is provided with an arc surface, which is adapted to and abuts against the peripheral wall of the trolley hole. The engaging portion is further provided with a locking flange on the side of the arc surface away from the plate body.

8. The handcart hole lock according to claim 1, characterized in that: The base is provided with at least two slide grooves, and each of the slide grooves extends along the radial direction of the locking hole, and each of the slide grooves is slidably mounted with a slider.

9. The handcart hole lock according to claim 1, characterized in that: The locking module includes a blocking component and a locking component. The blocking component is movably mounted on the base and has a blocking state and a non-blocking state relative to the locking hole. The locking component is mounted on the base and cooperates with the blocking component when the blocking component is in the blocking state to limit the movement of the blocking component.

10. The handcart hole lock according to claim 9, characterized in that: The base includes an annular boss, and the annular boss is provided with the locking hole; The shielding assembly includes a drive shell and a baffle, the baffle is rotatably mounted on the annular boss, the drive shell is provided with a through hole corresponding to the locking hole, the drive shell is rotatably mounted on the annular boss, and forms an accommodating space for accommodating the baffle with the annular boss, and the drive shell is also transmission-connected to the baffle to drive the baffle to extend out of the accommodating space and block the locking hole.

11. The handcart hole lock according to claim 10, characterized in that: The trolley hole lock further includes an elastic member installed between the annular boss and the drive housing. The elastic member provides elastic force to drive the drive housing so that the drive housing has a movement tendency to drive the baffle back into the accommodating space.

12. The handcart hole lock according to claim 11, characterized in that: The elastic member is a torsion spring, which includes a spiral body and two elastic arms respectively connected to the spiral body. The spiral body is installed on the annular boss. One elastic arm elastically abuts against the annular boss, and the other elastic arm elastically abuts against the drive shell, so that the drive shell has a movement tendency to drive the baffle back to the accommodating space.

13. The handcart hole lock according to claim 11, characterized in that: A square limiting hole is provided on the circumference of the drive housing. The locking assembly is rotatably mounted on the base. The locking assembly includes a movably arranged locking rod. A locking block is provided at one end of the locking rod. The locking block is plugged into and engaged with the limiting hole to limit the rotation of the drive housing. At least two adjacent abutment surfaces are provided on the circumferential side of the locking block. When the locking block is plugged into the limiting hole, the hole wall of the locking hole abuts against the corresponding abutment surfaces, and the locking rod can rotate relative to the locking hole to switch different abutment surfaces to abut against the hole wall of the locking hole.

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