CN216412678U - Hard disk cartridge with quick connecting structure - Google Patents

Abstract

The utility model discloses a hard disk cartridge with a quick connection structure, which comprises a shell; the mounting seat is sleeved in the shell and used for detachably mounting the solid state disk; the pressing type buckle is arranged on the mounting seat and used for clamping and connecting the mounting seat and the shell; and the elastic body is abutted between the pressing type buckle and the mounting seat, and the elastic body is at least arranged to be capable of generating elastic deformation along the pressing direction of the pressing type buckle. When the hard disk cartridge is used in the process of mounting and dismounting the solid hard disk, the dismounting and mounting of the shell and the mounting seat are realized without the assistance of tools, and the operation is convenient; and when the mount pad is connected with the casing block through the push type buckle, because the elastomer that leans on between push type buckle and the mount pad can take place elastic deformation along the direction of pressing of push type buckle, can give the elasticity of push type buckle and mount pad through the elastomer and guarantee that both are stably connected under the condition of not exerting external force.

Description

Hard disk cartridge with quick connecting structure

Technical Field

The utility model relates to the technical field of hard disk cartridges, in particular to a hard disk cartridge with a quick connection structure.

Background

With the rapid development of the internet, the content of electronic information transmission is more and more, the occupied storage space is also larger and larger, and more people select a large-capacity solid state disk to store electronic information in order to provide sufficient storage space for the electronic information.

In the process of using and transporting the solid state disk, the solid state disk is generally required to be physically protected by sleeving a hard disk box on the solid state disk. Because the hard disk box is sleeved outside the solid state disk, the hard disk box which can be sleeved outside the hard disk generally comprises at least two parts, for example, a mounting seat for mounting the solid state disk and a shell which is sleeved outside the mounting seat and is connected with the mounting seat; or comprises two half shells which are connected with each other, and a space enclosed by the two half shells when the two half shells are connected with each other is used for accommodating the solid state disk.

Since these large-capacity solid state disks are reusable, the solid state disks may need to be detached from the disk cartridge during the use of the solid state disks, so as to be replaced or repaired. Therefore, in order to detach the solid state disk from the hard disk cartridge, the mounting seat is generally detached from the casing or the two half shells are detached.

However, in the prior art, the mounting seat and the housing or the two half shells are generally detachably connected through screws, so that when the mounting seat and the housing are detached or the two half shells are detached, tools such as a screwdriver are needed, the operation process is complicated, and the problem that the screws are easily lost is also caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that in the prior art, when the solid state disk sleeved in the hard disk box is taken out of the hard disk box, screws for connecting the mounting seat with the shell or the two half shells need to be detached through a screwdriver, the operation process is complex, and the screws are easy to lose. According to one aspect of the present invention, a hard disk cartridge having a quick connect structure is provided.

The hard disk cartridge with the quick connection structure comprises a shell; the mounting seat is sleeved in the shell and used for detachably mounting the solid state disk; the pressing type buckle is arranged on the mounting seat and used for clamping and connecting the mounting seat and the shell; and the elastic body is abutted between the pressing type buckle and the mounting seat, and the elastic body is at least arranged to be capable of generating elastic deformation along the pressing direction of the pressing type buckle.

Therefore, when the solid state disk needs to be taken out of the hard disk box, firstly, the mounting seat and the shell can be detached by pressing the pressing type buckle and relatively moving the pressing type buckle and the mounting seat along the opposite direction of inserting the mounting seat into the shell; then, the solid state disk installed on the installation seat can be maintained, and the solid state disk can be detached from the installation seat, so that the solid state disk can be replaced. When the solid state disk is required to be installed back into the hard disk box, the installation seat for installing the solid state disk is inserted into the shell until the installation seat and the shell are connected through the pressing type buckle in a clamping mode, and then the solid state disk is accommodated in the hard disk box.

When the hard disk cartridge is used in the process of mounting and dismounting the solid hard disk, the dismounting and mounting of the shell and the mounting seat are realized without the assistance of tools, and the operation is convenient; and when the mount pad is connected with the casing block through the push type buckle, because the elastomer that leans on between push type buckle and the mount pad can take place elastic deformation along the direction of pressing of push type buckle, can give the elasticity of push type buckle and mount pad through the elastomer and guarantee that both are stably connected under the condition of not exerting external force.

In some embodiments, the side wall of the mount received in the housing is provided with a damping unit for increasing the resistance of the mount to movement relative to the housing. Illustratively, the damping unit is a bulge which is arranged on the side wall of the mounting seat, is in interference fit with the shell and can be elastically deformed. Therefore, the damping unit can increase the resistance of the mounting seat to move relative to the shell, the mounting seat is prevented from sliding off from the shell under the condition of no external force, and the connection stability of the mounting seat and the shell is ensured.

In some embodiments, the housing has a first opening at opposite ends thereof to allow the opposite ends of the mounting seat fitted in the housing to communicate with the outside. Therefore, when the solid state disk installed in the hard disk cartridge is used for data transmission, the heat dissipation capacity of the hard disk cartridge for dissipating heat when the hard disk cartridge is used for the solid state disk can be improved due to the fact that the first openings for communicating the installation seat with the outside are formed in the two ends of the shell.

In some embodiments, one end of the mounting seat is provided with a hard disk interface for electrically connecting with the solid state disk; the tip that is equipped with the hard disk interface of mount pad is equipped with the first end plate with the first opening adaptation of the corresponding end of casing, is equipped with the second opening with the data interface of electricity connection on the hard disk interface and outside intercommunication on the first end plate. Therefore, the data transmission with the solid state disk electrically connected to the hard disk interface in the hard disk box can be realized through the data interface while the solid state disk installed in the hard disk box is physically protected by the first end plate.

In some embodiments, the push-type snap is provided at an opposite end of the mount where the hard disk interface is provided. Therefore, the hard disk interface cannot be influenced by pressing the pressing type buckle. Preferably, the end of the mounting seat provided with the press type buckle is provided with a second end plate matched with the first opening of the corresponding end of the shell, and the second end plate is provided with a first heat dissipation hole communicated with the first cavity of the shell, which is used for accommodating the mounting seat, and the outside. Therefore, the heat dissipation performance of the hard disk box can be improved through the first heat dissipation holes.

In some embodiments, the mounting seat is provided with a second positioning part corresponding to the first positioning part on the circuit board which electrically connects the hard disk interface and the data interface; the circuit board fixing device further comprises a pressing block which is connected with the mounting base in a clamping mode so as to clamp the circuit board between the circuit board and the mounting base. Therefore, the circuit board can be ensured not to move when the circuit board is clamped on the mounting seat by the pressing block through the first positioning part and the second positioning part, so that the circuit board can be stably mounted on the mounting seat; moreover, the installation and the disassembly processes of the circuit board do not need tools, and the operation is convenient.

In some embodiments, the positions of the mounting seat and the pressing block corresponding to the circuit board are provided with second heat dissipation holes penetrating through the mounting seat and the pressing block. Therefore, the heat dissipation rate of the circuit board during data transmission of the solid state disk can be improved.

In some embodiments, the opposite end of the mounting seat, where the hard disk interface is arranged, is provided with a rotary pressing unit capable of clamping or releasing the free end of the solid state disk electrically connected to the hard disk interface on or from the mounting seat through rotation. Therefore, the solid state disk can be stably fixed on the mounting seat through the rotating and pressing unit; moreover, the solid state disk can be mounted and dismounted only by rotating the rotary pressing unit without the help of tools, and the operation is convenient and fast.

In some embodiments, the mounting seat comprises a first seat body and a second seat body which is connected to the first seat body in a clamping manner; the hard disk interface and the pressing type buckle are arranged on the first seat body; the elastic body is abutted between the second seat body and the pressing buckle. Therefore, the convenience of the installation and the disassembly of the elastic body can be improved by the installation and the disassembly of the first seat body and the second seat body.

In some embodiments, the outer surface of the press-type buckle is provided with a plurality of anti-slip portions, all of the anti-slip portions are arranged on the outer surface of the press-type buckle in an arrow shape, and the direction of the arrow is parallel to the direction of inserting the mounting seat into the housing. Therefore, the anti-slip part can enable an operator to push the outer surface of the pressing type buckle and simultaneously push the mounting seat relative to the shell through the friction force of the hand to the pressing type buckle; the direction of movement of the mounting to or from the housing can also be indicated by an arrow formed by the non-slip portion.

Drawings

FIG. 1 is a schematic diagram of a hard disk cartridge with a quick connect structure according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another view of the hard disk cartridge with the quick connect mechanism of FIG. 1;

FIG. 3 is a schematic diagram of a further perspective view of the hard disk cartridge of FIG. 1 with a quick connect mechanism;

FIG. 4 is a schematic cross-sectional view taken along the direction A-A of the hard disk cartridge with the quick connect mechanism shown in FIG. 3;

FIG. 5 is an enlarged view of the hard disk cartridge with the quick connect mechanism shown in FIG. 4 at B;

FIG. 6 is a schematic diagram illustrating a disassembled hard disk cartridge with a quick connect structure according to an embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating another disassembled state of a hard disk cartridge with a quick connect structure according to an embodiment of the present invention;

FIG. 8 is a structural diagram illustrating another disassembled state of the hard disk cartridge with the quick connect structure shown in FIG. 7;

FIG. 9 is a structural diagram illustrating a hard disk cartridge with a quick connect structure in a still further disassembled state according to an embodiment of the present invention;

reference numerals: 100. a solid state disk; 20. a housing; 201. a first opening; 202. a first cavity; 203. a first through groove; 204. a card slot; 30. a mounting seat; 301. a first seat body; 302. a second seat body; 31. a first end plate; 311. a second opening; 32. a second end plate; 321. a first heat dissipation hole; 33. a second positioning portion; 40. a push type buckle; 41. a pressing plate; 42. buckling; 43. a guide post; 401. an anti-slip portion; 50. an elastomer; 60. a damping unit; 71. a hard disk interface; 72. a data interface; 73. a circuit board; 731. a first positioning portion; 80. a compression block; 81. a second heat dissipation hole; 90. a rotating and pressing unit; 91. a first circular table; 92. a second circular table; 93. a first connecting shaft; 94. a second connecting shaft; 95. and (5) clamping the disc.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms used herein are generally terms commonly used by those skilled in the art, and if they are inconsistent with such commonly used terms, the terms herein control.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 to 9 schematically show a hard disk cartridge having a quick-connect structure according to an embodiment of the present invention.

As shown in fig. 4 and 5, the hard disk cartridge with the quick connection structure includes a case 20, a mount 30, a push type button 40, and an elastic body 50; the mounting seat 30 is used for detachably mounting the solid state disk 100, and is sleeved in the housing 20; the push type buckle 40 is integrally formed or connected on the mounting seat 30 and is used for clamping and connecting the mounting seat 30 and the shell 20; the elastic body 50 abuts between the push type buckle 40 and the mounting seat 30, and is configured to be elastically deformable at least in a pushing direction of the push type buckle 40.

In the present invention, the elastic body 50 may be an elastic member having elastic deformation, for example, a compression spring, rubber, or the like. When the elastic body 50 is a compression spring, in order to prevent the compression spring from sliding relative to the mounting seat 30 during the pressing process, a guide post 43 is integrally formed or connected to at least one of the pressing type buckle 40 and the mounting seat 30, and the guide post 43 is used for passing through a through hole in the middle of the compression spring.

In the present invention, the pressing type fastener 40 may adopt a structure of the pressing type fastener 40 commonly used in the prior art. Fig. 4 to 7 exemplarily show one embodiment of the push type snaps 40, and in this embodiment, the push type snaps 40 include a pressing plate 41 integrally formed or connected to the mount 30 and a snap 42 integrally formed or connected to the pressing plate 41.

As shown in fig. 4 and 5, a locking groove 204 is integrally formed or machined on the housing 20 at a position corresponding to the locking hook 42. Generally, the slot 204 is generally a groove structure, and the latch 42 is generally a hook structure with a hook body extending toward the slot 204, so that the latch 42 is not easily released from the slot 204 when being fastened in the slot 204.

When the mount 30 and the housing 20 need to be snap-connected by the press-type snap 40, the mount 30 is inserted into the housing 20, and pressure is applied to the press plate 41 along the press direction X, so that the snap 42 on the press plate 41 can deviate from the snap groove 204 on the housing 20 by a certain distance, and the snap 42 can move to a position opposite to the snap groove 204, and then the pressure applied to the press plate 41 is removed, so that the snap 42 can be snap-connected in the snap groove 204, thereby realizing the connection of the mount 30 and the housing 20 (as shown in fig. 1 to 3). When it is necessary to remove the mount 30 from the housing 20, the mount 30 can be removed from the housing 20 by applying pressure to the pressing plate 41 in the pressing direction X and moving the mount 30 relative to the housing 20 in the opposite direction to the insertion of the mount 30 into the housing 20 (as shown in fig. 6), and at this time, the solid-state hard disk 100 mounted on the mount 30 can be repaired or replaced. The installation seat 30 is installed on the shell 20 and detached from the shell 20, so that tools are not needed, and the operation is convenient; when the mounting base 30 is engaged with the housing 20 through the pressing type buckle 40, since the elastic body 50 abutting between the pressing type buckle 40 and the mounting base 30 can be elastically deformed along the pressing direction of the pressing type buckle 40, the elastic body 50 can provide elastic force to the pressing type buckle 40 and the mounting base 30 to ensure that the two are stably connected without applying external force.

In order to further improve the stability of the connection of the mount 30 with the housing 20. In a preferred embodiment, as shown in fig. 1 to 3 and 6, a first through slot 203 for accommodating the press type button 40 is integrally formed or machined on the housing 20, and when the housing 20 and the mount 30 are snap-connected by the press type button 40, the press type button 40 is fitted in the first through slot 203, so that the housing 20 is prevented from moving relative to the mount 30 in a direction except a direction parallel to the insertion direction of the mount 30 into the housing 20, thereby ensuring the stability of the snap-connection of the mount 30 and the housing 20.

In order to increase the resistance of the mounting seat 30 to move relative to the housing 20, so as to prevent the mounting seat 30 from sliding off the housing 20 without external force, and further ensure the stability of the connection between the mounting seat 30 and the housing 20. In a preferred embodiment, as shown in fig. 6, a damping unit 60 for increasing resistance to movement of mount 30 relative to housing 20 is provided on a sidewall of mount 30. The damper unit 60 is accommodated in the housing 20 when the mount 30 is engaged with the housing 20. Illustratively, the damping unit 60 is a protrusion provided on a sidewall of the mounting seat 30, which is in interference fit with the housing 20 and can be elastically deformed. Therefore, the damping unit 60 can increase the resistance of the mounting base 30 to move relative to the housing 20, prevent the mounting base 30 from sliding off the housing 20 without external force, and ensure the stability of connection between the mounting base and the housing.

In order to improve the heat dissipation capability of the housing 20, in a preferred embodiment, as shown in fig. 4, first openings 201 are integrally formed or machined at two opposite ends of the housing 20, and the first openings 201 communicate a first cavity 202 of the housing 20 for accommodating the mounting seat 30 with the outside, so that the two opposite ends of the mounting seat 30 sleeved in the housing 20 can communicate with the outside.

In some embodiments, in order to improve the protection of the hard disk cartridge to the hard disk installed therein, referring to fig. 1 and 4, a hard disk interface 71 for electrically connecting with the solid state disk 100 is installed at one end of the installation seat 30; a first end plate 31 adapted to the first opening 201 of the corresponding end of the housing 20 is provided at the end of the mounting base 30 where the hard disk interface 71 is provided, and a second opening 311 for communicating the data interface 72 electrically connected to the hard disk interface 71 with the outside is integrally formed or machined in the first end plate 31. In the present invention, the data interface 72 may be a data interface 72 commonly used in the art, for example, a USB interface may be used, and the present invention is not limited to a specific type of the data interface 72. Thus, while the solid state disk 100 mounted in the disk cartridge is physically protected by the first end plate 31, data transmission with the solid state disk 100 electrically connected to the disk interface 71 in the disk cartridge can be achieved through the data interface 72. Further, as shown in fig. 4, the push type button 40 is provided at the opposite end of the mount 30 where the hard disk interface 71 is provided, so that the pressing of the push type button 40 does not affect the hard disk interface 71. Further, referring to fig. 2 and 4, the end of the mounting base 30 provided with the press-type buckle 40 is provided with a second end plate 32 adapted to the first opening 201 of the corresponding end of the housing 20, and the second end plate 32 is integrally formed or machined with a first heat dissipation hole 321 for communicating the first cavity 202 with the outside, so as to improve the heat dissipation performance of the hard disk cartridge through the first heat dissipation hole 321.

In order to ensure the convenience of mounting and dismounting the circuit board 73, which electrically connects the hard disk interface 71 and the data interface 72, on the mounting base 30 without using tools, in a preferred embodiment, as shown in fig. 8, the hard disk interface 71 and the data interface 72 are electrically connected through the circuit board 73, and the mounting base 30 is provided with a second positioning portion 33 which is adapted to and corresponds to the first positioning portion 731 on the circuit board 73; and the hard disk cartridge further comprises a compression block 80 which is in snap-fit connection with the mounting seat 30 to clamp the circuit board 73 between the compression block and the mounting seat 30. For example, the first positioning portion 731 on the circuit board 73 may be implemented as a groove or a through hole; the second positioning portion 33 on the mounting base 30 may be implemented as a rib or a protrusion or the like that fits into a groove or a through hole on the circuit board 73. Thus, the first positioning portions 731 and the second positioning portions 33 can ensure that the circuit board 73 will not move when the pressing block 80 clamps the circuit board 73 to the mounting base 30, thereby ensuring that the circuit board 73 can be stably mounted on the mounting base 30. Further, in order to improve the heat dissipation capability of the hard disk cartridge, as shown in fig. 7 to 9, the mounting seat 30 and the pressing block 80 are provided with a second heat dissipation hole 81 penetrating therethrough at a position corresponding to the circuit board 73.

In a preferred embodiment, as shown in fig. 4 and 5, and fig. 8 and 9, the opposite end of the mounting base 30, where the hard disk interface 71 is provided, is provided with a rotating pressing unit 90, and the rotating pressing unit 90 can clamp the free end of the solid state hard disk 100 electrically connected to the hard disk interface 71 on the mounting base 30 or release the free end from the mounting base 30 by rotation. Exemplarily, as shown in fig. 5, the rotary pressing unit 90 includes a first circular truncated cone 91, a first connecting shaft 93, a second circular truncated cone 92, a second connecting shaft 94, and a locking disc 95, which are connected in sequence; the first connecting shaft 93 passes through the through hole of the mounting base 30, and the first round table 91 and the second round table 92 are respectively located at two sides of the mounting base 30, so that the first connecting shaft 93 can rotate around the axis thereof relative to the mounting base 30 but cannot move relative to the mounting base 30; the second connecting shaft 94 is coaxial with the first connecting shaft 93, the locking disc 95 extends outwards along the radial direction of the second connecting shaft 94, and the distribution angle of the locking disc 95 in the circumferential direction of the second connecting shaft 94 is less than 180 degrees, so that the locking disc 95 can be located on the surface of the solid state disk 100 by rotating the first connecting shaft 93, the solid state disk 100 is tightly pressed on the mounting seat 30, or the solid state disk 100 is moved out from the surface of the solid state disk 100, the solid state disk 100 can be detached from the hard disk interface 71, the solid state disk 100 can be mounted and dismounted only by rotating the rotary pressing unit 90, tools are not needed, and the operation is convenient.

To facilitate the installation and removal of the elastic body 50, in a preferred embodiment, as shown in fig. 9, the installation base 30 is configured to include a first base 301 and a second base 302 that is connected to the first base 301 in a snap-fit manner; the hard disk interface 71 and the push type buckle 40 are arranged on the first base 301; the elastic body 50 is abutted between the second holder 302 and the push button 40. Preferably, the rotary pressing unit 90 may be provided on the second seat 302.

In a preferred embodiment, as shown in fig. 1 to 3, 6 and 7, the outer surface of the press button 40 is provided with a plurality of anti-slip parts 401, all of the anti-slip parts 401 are arranged on the outer surface of the press button 40 in an arrow shape, and the direction of the arrow is parallel to the direction of inserting the mounting seat 30 into the housing 20. Thus, the anti-slip part 401 allows the operator to push the outer surface of the push button 40 and push the mounting seat 30 against the housing 20 by the friction force of the hand on the push button 40; the arrow formed by the non-slip portion 401 may also indicate the moving direction in which the operator mounts the mount 30 to the housing 20 or detaches from the housing 20.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims (10)

1. Hard disk cartridge with quick connect structure, comprising:

a housing;

the mounting seat is sleeved in the shell and used for detachably mounting the solid state disk;

the pressing type buckle is arranged on the mounting seat and used for clamping and connecting the mounting seat and the shell;

and the elastic body is abutted between the pressing type buckle and the mounting seat, and the elastic body is set to be capable of generating elastic deformation at least along the pressing direction of the pressing type buckle.

2. The hard disk cartridge having the quick connect structure as claimed in claim 1, wherein a side wall of the mount received in the case is provided with a damping unit for increasing resistance to movement of the mount relative to the case.

3. The hard disk cartridge having the quick connect structure as claimed in claim 1 or 2, wherein the opposite ends of the case have first openings to allow the opposite ends of the mounting seat fitted in the case to communicate with the outside.

4. The hard disk cartridge with the quick connection structure as claimed in claim 3, wherein one end of the mounting seat is provided with a hard disk interface for electrical connection with the solid state disk;

the end portion of the mounting seat, which is provided with the hard disk interface, is provided with a first end plate matched with the first opening of the corresponding end of the shell, and the first end plate is provided with a second opening which is used for electrically connecting a data interface on the hard disk interface with the outside.

5. The hard disk cartridge with the quick-connect structure as claimed in claim 4, wherein said press-type snap is provided at an opposite end of said mounting seat where said hard disk interface is provided;

the end of the mounting seat provided with the pressing type buckle is provided with a second end plate matched with the first opening of the corresponding end of the shell, and the second end plate is provided with a first heat dissipation hole communicated with the first cavity of the mounting seat and the outside and used for accommodating the shell.

6. The hard disk cartridge with the quick connection structure as claimed in claim 4, wherein the mounting seat is provided with a second positioning portion corresponding to the first positioning portion on the circuit board electrically connecting the hard disk interface and the data interface;

the circuit board fixing device further comprises a pressing block which is connected with the mounting base in a clamping mode so as to clamp the circuit board between the circuit board and the mounting base.

7. The hard disk cartridge with the quick connection structure as claimed in claim 6, wherein said mounting seat and said pressing block are provided with second heat dissipation holes therethrough at positions corresponding to said circuit board.

8. The hard disk cartridge with the quick connection structure as claimed in claim 4, wherein the opposite end of the mounting seat where the hard disk interface is provided with a rotary pressing unit capable of clamping or releasing a free end of the solid state hard disk electrically connected to the hard disk interface on or from the mounting seat by rotation.

9. The hard disk cartridge with the quick connection structure as claimed in claim 4, wherein the mounting seat comprises a first seat body and a second seat body snap-connected to the first seat body;

the hard disk interface and the pressing type buckle are arranged on the first seat body;

the elastic body is abutted between the second base and the pressing buckle.

10. The hard disk cartridge with the quick connection structure as claimed in claim 1 or 2, wherein the outer surface of the push button is provided with a plurality of anti-slip portions, all of which are arranged on the outer surface of the push button in the shape of an arrow pointing in parallel to the direction of insertion of the mounting seat into the housing.

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