Inner handle

Abstract

The utility model provides an inner handle which comprises a handle body and an installation structure used for installing the handle body on a door plate, an installation groove is formed in the handle body, the inner handle further comprises a control mechanism, and the control mechanism comprises a fixing base, a driving shaft rotationally connected to the inner end of the fixing base and a pushing key matched with the driving shaft. The handle body is provided with an extending hole in sliding fit with the pushing key, the inner end of the fixing seat is provided with an installation hole in rotating fit with the driving shaft, the fixing seat is provided with a sliding groove in sliding fit with the pushing key in the radial direction relative to the installation hole, and the sliding groove is provided with a limiting groove penetrating into the installation hole. A stroke groove is formed in the outer circumferential wall of the driving shaft, a linkage rod penetrating through the limiting groove to be matched with the stroke groove is arranged on the pushing key, and the pushing key controls the linkage rod to move on the formed track of the stroke groove, so that the driving shaft rotates forwards or backwards. The utility model has the advantages of simple structure and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of door handle technology, specifically to an inner handle. Background Technology

[0002] In related technologies, a door handle includes an indoor mounting base installed inside the door, an outdoor mounting base installed outside the door, an indoor handle rotatably connected to the indoor mounting base, and an outdoor handle rotatably connected to the outdoor mounting base. The door handle also includes a lock body disposed between the indoor mounting base and the outdoor mounting base, and the lock body is provided with a bolt. People can control the bolt by rotating the indoor handle or the outdoor handle to open or close the door.

[0003] The existing Chinese patent application number CN202223330211.0, entitled "An Anti-theft Door Handle," discloses "an anti-theft door handle comprising an outdoor handle 1 and an indoor handle 5, wherein the indoor handle 5 is provided with a control mechanism 7, the outdoor handle 1 is provided with a locking mechanism 2, the control mechanism 7 controls the locking and unlocking of the locking mechanism 2, and the indoor handle 5 is further provided with a first mounting seat 6 rotatably connected to the indoor handle 5, the first mounting seat 6 being used to rotatably connect the indoor handle 5 to the door." (Refer to...) Figure 1 and Figure 3 The control mechanism 7 includes a first fixed base 71, which rotates synchronously with the indoor handle 5. A fixed hole 711 is provided on the first fixed base 71, and a mating shaft 72 is rotatably connected within the fixed hole 711. A gear 722 is provided at the end of the mating shaft 72 away from the outdoor handle 1, and the gear 722 meshes with a rack 724. A sliding groove 712 for the rack 724 to slide is provided on the first fixed base 71. A driving component 73 is also provided inside the indoor handle 5. The driving component 73 drives the rack 724 to slide within the sliding groove 712. The driving component 73 includes a fixed plate 731 and a push plate 733. The fixed plate 731 is fixedly connected to the rack 724, and the push plate 733 is slidably connected within the sliding groove 712. A push post 734 is provided on the side of the push plate 733 closest to the fixed plate 731, and a through groove 732 for the push post 734 to slide on the fixed plate 731. A square shaft 74 for synchronously rotating the outdoor handle 1 and the indoor handle 5 is inserted inside the first fixed base 71. (See reference...) Figure 3 and Figure 5A square plate 75 for controlling locking and unlocking is inserted inside the shaft 72, and the square plate 75 is rotatably connected to the square shaft 74. A limit groove 713 is opened on the side of the first fixed seat 71 near the gear 722, and the limit block 721 cooperates with the limit groove 713. "Its control mechanism has many parts, and during installation, the push plate 733 needs to be installed in a specific position to cooperate with the fixed plate 731 before being inserted into the indoor handle 5. After aligning the push plate 733 with the protrusion hole 51, the positioning plate 77 is inserted, and then the push plate 733 is pushed up to protrude from the protrusion hole 51, thereby realizing the installation of the control mechanism 7, which makes its installation troublesome and inconvenient. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an inner handle that is simple in structure and easy to install.

[0005] To address the above problems, the following technical solution is provided: an inner handle, comprising a handle body and a mounting structure for mounting the handle body to a door panel. The handle body has a mounting groove and a control mechanism. The control mechanism includes a fixed seat mounted in the mounting groove, a drive shaft rotatably connected to the inner end of the fixed seat, and a push key cooperating with the drive shaft. The handle body has an extension hole for sliding engagement with the push key. The inner end of the fixed seat has a mounting hole that rotatably engages with the drive shaft. The fixed seat has a sliding groove in the radial direction relative to the mounting hole that slidably engages with the push key. The sliding groove has a limiting groove extending into the mounting hole. The outer circumferential wall of the drive shaft has a stroke groove. The push key has a linkage rod passing through the limiting groove and engaging with the stroke groove. The push key controls the displacement of the linkage rod along the trajectory of the stroke groove, thereby achieving forward or reverse rotation of the drive shaft.

[0006] In the above structure, when installing the control mechanism, the push key can be placed from the mounting slot into the protruding hole to engage with it. Then, the drive shaft is inserted into the mounting hole of the fixed base, aligning the stroke groove with the sliding groove. Finally, the fixed base is inserted into the mounting slot of the handle body, allowing the sliding groove and push key to slide into contact. The linkage rod slides into the stroke groove, thus completing the installation of the control mechanism. This improves the ease of installation and, because the control mechanism has fewer parts, further facilitates assembly and reduces production costs. One end of the stroke groove is axially opposite to the drive shaft, and the other end is circumferentially oriented along the drive shaft, forming an arc shape. Users can control the displacement or reset of the push key to engage the linkage rod with the stroke groove, enabling the drive shaft to rotate forward or backward, thus locking or unlocking the locking plate. The limiting groove limits the linkage rod, improving the reliability of the invention. The protruding hole facilitates user operation of the push key, enhancing the ease of operation.

[0007] The present invention is further configured such that the limiting groove, the sliding groove and the travel groove are all open at one end relative to the installation direction.

[0008] The above structure facilitates the sliding connection between the drive shaft, the fixed seat, and the push key, thereby further facilitating the assembly of this utility model.

[0009] The present invention is further configured such that the fixed base includes a base body, a rotating shaft disposed at one end of the base body and cooperating with the mounting structure, and a fixed block disposed at the other end of the base body. The sliding groove, the limiting groove and the mounting hole are all opened on the fixed block. A reset torsion spring is sleeved on the rotating shaft, and a limiting block is provided on the base body that abuts and cooperates with the two ends of the reset torsion spring.

[0010] In the above structure, the rotating shaft facilitates the cooperation between the fixed base and the mounting structure, and also facilitates the control of the rotation of the shaft above the door lock to control the unlocking or locking of the bolt. The fixed block facilitates the cooperation between the fixed base and the push key and drive shaft, thereby improving the ease and reliability of assembly. The reset torsion spring facilitates the reset of the device after the door is opened, improving the ease of operation.

[0011] The present invention is further configured such that a limiting hole is provided on the fixing block, and a limiting component for limiting the push key is provided in the limiting hole. The limiting component includes an abutting spring located in the limiting hole and an abutting ball that abuts and cooperates with the abutting spring. An abutting groove that cooperates with the abutting ball is provided on the side of the push key facing the stroke groove. Two abutting grooves are provided at intervals relative to the displacement direction of the push key.

[0012] In the above structure, the elastic force of the abutment spring causes the abutment ball to abut against one of the abutment grooves at the bottom of the push button. When the user controls the displacement of the push button, the abutment ball abuts against the other abutment groove. By setting two abutment grooves, the locking and unlocking positions of the push button can be corresponding to these positions. By setting a limiting component, the user's comfort when controlling the displacement of the push button can be improved, and the push button can be prevented from being too loose, thereby improving the reliability of this utility model.

[0013] The present invention is further configured such that the limiting components are symmetrically arranged in two sets relative to the limiting grooves.

[0014] By adopting the above structure, the resistance generated by the limiting component to the displacement of the push key can be further increased, thereby further improving the stability of the push key displacement and improving the reliability of this utility model.

[0015] The present invention is further provided that the outer end of the drive shaft is provided with a limiting plate that abuts against the fixed seat.

[0016] By adopting the above structure, the limiting plate can limit the limiting shaft, thereby improving the stability of the limiting shaft.

[0017] The present invention is further provided in that the mounting groove is provided with a connecting block that abuts and cooperates with the base body, the connecting block is provided with a connecting hole, and the base body is provided with a fixing hole corresponding to the connecting hole.

[0018] In the above structure, the fixing seat is fixed in the mounting groove by screws passing through the fixing hole and screwing into the connecting hole, thereby improving the stability of the fixing seat.

[0019] The present invention is further provided that the end of the mounting hole is provided with a clearance groove along its axial direction.

[0020] By adopting the above structure, the friction between the drive shaft and the inner wall of the mounting hole can be reduced when the drive shaft rotates relative to its axial direction, thereby extending the service life of the drive shaft and improving the reliability of this utility model.

[0021] The present invention is further configured such that a groove is provided on the limiting plate, a positioning protrusion is provided in the groove, and a convex ring adapted to the groove and the positioning protrusion is provided in the mounting groove.

[0022] In the above structure, the cooperation between the convex ring, the protrusion, and the groove can improve the stability of the drive shaft rotation, thereby improving the reliability of the control mechanism in this utility model. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0026] Figure 4 This is a schematic diagram of the installation structure and control mechanism working together in this utility model.

[0027] Figure 5 This is a schematic diagram of the structure in which the push key and the drive shaft cooperate in this utility model.

[0028] Figure 6 This is a schematic diagram of the push key in this utility model.

[0029] Figure 7 This is a schematic diagram of the structure of the fixed base in this utility model.

[0030] Figure 8 This is a schematic diagram of the handle body in this utility model.

[0031] The labels in the diagram have the following meanings: 1-Handle body; 2-Mounting structure; 11-Mounting groove; 3-Control mechanism; 31-Fixed seat; 32-Drive shaft; 33-Push key; 311-Mounting hole; 312-Slide groove; 313-Limit groove; 321-Stroke groove; 331-Linkage rod; 314-Seat body; 315-Rotating shaft; 316-Fixed block; 4-Reset torsion spring; 317-Limit block; 3161-Limit hole; 5-Limit component; 51-Abutment spring; 52-Abutment ball; 332-Abutment groove; 322-Limit plate; 111-Connecting block; 1111-Connecting hole; 3141-Fixed hole; 318-Leaning groove; 3221-Groove; 3222-Positioning protrusion; 12-Protruding ring; 01-Extending hole. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] like Figures 1 to 8 The illustrated inner handle includes a handle body 1 and a mounting structure 2 for mounting the handle body 1 to a door panel. The handle body 1 has a mounting groove 11 and a control mechanism 3. The control mechanism 3 includes a fixed base 31 mounted in the mounting groove 11, a drive shaft 32 rotatably connected to the inner end of the fixed base 31, and a push key 33 cooperating with the drive shaft 32. The handle body 1 has an extension hole 01 for sliding engagement of the push key 33, and the inner end of the fixed base 31 has a mounting hole for rotatably engaging with the drive shaft 32. 311. The fixed base 31 has a sliding groove 312 in the radial direction relative to the mounting hole 311, which slides and engages with the push key 33. The sliding groove 312 has a limiting groove 313 that extends into the mounting hole 311. The outer circumferential wall of the drive shaft 32 has a stroke groove 321. The push key 33 has a linkage rod 331 that passes through the limiting groove 313 and engages with the stroke groove 321. The push key 33 controls the displacement of the linkage rod 331 on the opening trajectory of the stroke groove 321 to realize the forward or reverse rotation of the drive shaft 32.

[0035] In the above structure, when installing the control mechanism 3, the push key 33 can be placed from the mounting groove 11 into the protrusion hole 01 to engage with it. Then, the drive shaft 32 is inserted into the mounting hole 311 of the fixed seat 31, so that the stroke groove 321 corresponds to the sliding groove 312. Finally, the fixed seat 31 is inserted into the mounting groove 11 of the handle body 1, so that the sliding groove 312 and the push key 33 slide into each other. The linkage rod 331 slides into the stroke groove 321, thereby realizing the installation of the control mechanism 3. This improves the ease of installation of this utility model. Moreover, the control mechanism 3 of this utility model has fewer parts, which can further facilitate assembly and reduce the production cost of this utility model. One end of the stroke groove 321 is opened in the axial direction relative to the drive shaft 32, and the other end is opened in the circumferential direction of the drive shaft 32, forming an arc shape. The user can control the displacement or reset of the push key 33, so that the linkage rod 331 engages with the stroke groove 321 to realize the forward rotation or flipping of the drive shaft 32, thereby realizing the locking or unlocking of the control lock plate. The limiting groove 313 can limit the linkage rod 331, thereby improving the reliability of this utility model. The extension hole 01 facilitates the user's operation of the push key 33, thereby improving the ease of operation of this utility model. The drive shaft 32 has a socket for connecting the lock plate at one end facing the mounting structure 2. The drive shaft 32 drives the lock plate to rotate through the socket, thereby locking or unlocking the door lock.

[0036] In this embodiment, the limiting groove 313, the sliding groove 312, and the travel groove 321 are all open at one end relative to the installation direction.

[0037] The above structure facilitates the sliding connection between the drive shaft 32, the fixed seat 31 and the push key 33, thereby further facilitating the assembly of this utility model.

[0038] In this embodiment, the fixed base 31 includes a base body 314, a rotating shaft 315 disposed at one end of the base body 314 and cooperating with the mounting structure 2, and a fixing block 316 disposed at the other end of the base body 314. The sliding groove 312, the limiting groove 313 and the mounting hole 311 are all opened on the fixing block 316. A reset torsion spring 4 is sleeved on the rotating shaft 315, and a limiting block 317 is provided on the base body 314 that abuts and cooperates with both ends of the reset torsion spring 4.

[0039] In the above structure, the rotating shaft 315 facilitates the cooperation between the fixed base 31 and the mounting structure 2, and also facilitates the rotation of the upper shaft of the door lock to control the unlocking or locking of the bolt. The fixed block 316 facilitates the cooperation between the fixed base 31 and the push key 33 and the drive shaft 32, thereby improving the ease and reliability of assembly. The reset torsion spring 4 facilitates the reset of the device after the door is opened, improving the ease of operation.

[0040] In this embodiment, a limiting hole 3161 is provided on the fixing block 316. A limiting component 5 for limiting the push key 33 is provided in the limiting hole 3161. The limiting component 5 includes an abutting spring 51 located in the limiting hole 3161 and an abutting ball 52 that abuts against the abutting spring 51. An abutting groove 332 that cooperates with the abutting ball 52 is provided on the side of the push key 33 facing the travel groove 321. Two abutting grooves 332 are provided at intervals relative to the displacement direction of the push key 33.

[0041] In the above structure, the elastic force of the abutting spring 51 causes the abutting ball 52 to abut against one of the abutting grooves 332 at the bottom of the push button 33. When the user controls the displacement of the push button 33, the abutting ball 52 abuts against the other abutting groove 332. By setting two abutting grooves 332, the locking and unlocking positions of the push button 33 can be corresponding. By setting the limiting component 5, the comfort of the user when controlling the displacement of the push button 33 can be improved, and the push button 33 can be prevented from being too loose, thereby improving the reliability of this utility model.

[0042] In this embodiment, the limiting component 5 is symmetrically arranged in two sets relative to the limiting groove 313.

[0043] By adopting the above structure, the resistance generated by the limiting component 5 to the displacement of the push key 33 can be further increased, thereby further improving the stability of the displacement of the push key 33 and improving the reliability of this utility model.

[0044] In this embodiment, the outer end of the drive shaft 32 is provided with a limiting plate 322 that abuts against the fixed seat 31.

[0045] By adopting the above structure, the limiting plate 322 can limit the limiting shaft, thereby improving the stability of the limiting shaft.

[0046] In this embodiment, the mounting groove 11 is provided with a connecting block 11 that abuts against and cooperates with the base 314. The connecting block 11 is provided with a connecting hole 1111, and the base 314 is provided with a fixing hole 3141 corresponding to the connecting hole 1111.

[0047] In the above structure, the fixing base 31 is fixed in the mounting groove 11 by screws passing through the fixing hole 3141 and screwing into the connecting hole 1111, thereby improving the stability of the fixing base 31.

[0048] In this embodiment, a clearance groove 318 is provided at the end of the mounting hole 311 along its axial direction.

[0049] By adopting the above structure, the friction between the drive shaft 32 and the inner wall of the mounting hole 311 when the drive shaft 32 rotates relative to its axial direction can be reduced, thereby extending the service life of the drive shaft 32 and improving the reliability of this utility model.

[0050] In this embodiment, the limiting plate 322 is provided with a groove 3221, the groove 3221 is provided with a positioning protrusion 3222, and the mounting groove 11 is provided with a protruding ring 12 that is adapted to the groove 3221 and the positioning protrusion 3222.

[0051] In the above structure, the convex ring 12 cooperates with the protrusion and the groove 3221 to improve the stability of the rotation of the drive shaft 32, thereby improving the reliability of the control mechanism 3 in this utility model.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. An internal handle comprising a handle body and a mounting structure for mounting the handle body to a door panel, characterised in that: The handle body is provided with an installation groove, and further comprises a control mechanism, the control mechanism comprising a fixing seat installed in the installation groove, a driving shaft rotatably connected to the inner end of the fixing seat, and a pushing key matched with the driving shaft, the handle body being provided with an extension hole for the pushing key to slide and match, the inner end of the fixing seat being provided with an installation hole rotatably matched with the driving shaft, the fixing seat being provided with a sliding groove in the radial direction of the installation hole, the sliding groove being provided with a limiting slot penetrating into the installation hole, the outer circumferential wall of the driving shaft being provided with a stroke slot, the pushing key being provided with a linkage rod penetrating through the limiting slot and matched with the stroke slot, the pushing key being displaced on the trajectory of the stroke slot by controlling the linkage rod to realize the forward rotation or reverse rotation of the driving shaft.

2. A thumb turn inner handle according to claim 1, wherein: The limiting slot, the sliding groove and the stroke slot are both open at one end relative to the installation direction.

3. A thumb turn inner handle as defined in claim 1, wherein: The fixing seat comprises a seat body, a rotating shaft provided at one end of the seat body and matched with the installation structure, and a fixing block provided at the other end of the seat body, the sliding groove, the limiting slot and the installation hole being provided on the fixing block, a return torsional spring being sleeved on the rotating shaft, the seat body being provided with a limiting block abutting and matched with both ends of the return torsional spring.

4. A thumb turn inner handle according to claim 3, wherein: The fixing block is provided with a limiting hole, the limiting hole being provided with a limiting assembly for limiting the pushing key, the limiting assembly comprising an abutting spring in the limiting hole and an abutting ball matched with the abutting spring, one side of the pushing key facing the stroke slot being provided with an abutting groove matched with the abutting ball, the abutting groove being provided with two abutting grooves spaced apart relative to the displacement direction of the pushing key.

5. A thumb turn inner handle according to claim 4, wherein: The limiting assembly is symmetrically provided with two groups relative to the limiting slot.

6. The inside handle according to claim 1, wherein: The outer end of the driving shaft is provided with a limiting plate abutting with the fixing seat.

7. A thumb turn inner handle as defined in claim 3, wherein: The installation groove is provided with a connecting block abutting and matched with the seat body, the connecting block being provided with a connecting hole, and the seat body being provided with a fixing hole corresponding to the connecting hole.

8. The inside handle according to claim 1, wherein: The end of the installation hole is provided with a gap slot along the axial direction thereof.

9. A thumb turn inner handle as defined in claim 6, wherein: The limiting plate is provided with a groove, the groove being provided with a positioning protrusion, the installation groove being provided with a convex ring matched with the groove and the positioning protrusion. The limiting plate is provided with a groove, the groove being provided with a positioning protrusion, the installation groove being provided with a convex ring matched with the groove and the positioning protrusion.

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