Concealed base handle

Abstract

The utility model provides a kind of hidden base formula handle, including base, shaft, handle module and handle, shaft is rotatably threaded in base;Handle module includes transmission assembly and reset piece, transmission assembly is rotatably arranged in the side of base, and is fixedly connected with shaft, reset piece is limit setting in base, transmission assembly is equipped with first dolly, at least part of reset piece is set on the rotation path of first dolly, to make transmission assembly when rotating can drive reset piece deformation, and reverse rotation under the action of reset piece recovery;Handle is sleeved in the outer periphery of base, and is connected with transmission assembly, to drive shaft rotating by transmission assembly.The utility model provides a kind of hidden base formula handle, by accommodating base in handle, so that base can be hidden in handle, improve the aesthetic degree of hidden base formula handle.And reset piece can be used to realize the reset of handle, without manual reset, so that handle is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, and more specifically, to a hidden base type handle. Background Technology

[0002] When traditional handles are installed on doors and windows, at least part of the base is still visible. The base cannot be completely hidden, which fails to bring aesthetic appeal to the space.

[0003] In response, a type of handle with a concealed base has appeared on the market. When this type of handle is installed on doors and windows, its base cannot be seen from the outside. This concealed base handle is not only aesthetically pleasing but also takes up less space, and is becoming increasingly popular.

[0004] Then, the related technology's base-hidden base-type handle has difficulty in resetting the handle after it is turned, making the handle inconvenient to operate and requiring improvement. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a hidden base handle to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions.

[0007] This utility model provides a concealed base handle, including:

[0008] Base;

[0009] A shaft, which is rotatably mounted on the base;

[0010] A handle module, comprising a transmission assembly and a reset member, wherein the transmission assembly is rotatably disposed on one side of the base and fixedly connected to the shaft, the reset member is limited and disposed on the base, the transmission assembly is provided with a first actuating member, at least a portion of the reset member is disposed on the rotation path of the first actuating member, so that when the transmission assembly rotates, it can drive the reset member to deform, and rotate in the opposite direction under the action of the reset member returning to its original position; and

[0011] A handle is fitted around the outer periphery of the base and connected to the transmission assembly to drive the shaft to rotate via the transmission assembly.

[0012] In one embodiment, the base has a first abutting protrusion on the side facing the handle module. The reset member includes a body and a first extension arm extending radially from the body along the shaft. The length of the first extension arm is greater than the minimum distance from the body to the first abutting protrusion. The first abutting protrusion and the first actuating member are disposed on the same side of the first extension arm, and radially, the first actuating member is located between the outer peripheral surface of the body and the first abutting protrusion.

[0013] In one embodiment, the base has a second abutment protrusion spaced apart from the first abutment protrusion on the side facing the handle module. The reset member also includes a second extension arm extending radially from the body along the shaft. The length of the second extension arm is greater than the minimum distance from the body to the second abutment protrusion. The transmission assembly also includes a second actuating member. The second abutment protrusion and the second actuating member are disposed on the same side of the second extension arm, and radially, the second actuating member is located between the outer peripheral surface of the body and the second abutment protrusion.

[0014] In one embodiment, the first abutting protrusion and the second abutting protrusion are disposed at both radial ends of the base; and / or, the first abutting protrusion and the second abutting protrusion are disposed circumferentially between the first extension arm and the second extension arm, the first actuating member abuts against the first extension arm, and the second actuating member abuts against the second extension arm.

[0015] In one embodiment, the shaft includes a plug-in section, a rotating section, and a connecting section connected in sequence. The plug-in section can be plugged into the lock cylinder, the rotating section passes through the base, and the connecting section is connected to the transmission assembly. A slot is provided on the side of the connecting section near the rotating section. The concealed base handle also includes a retaining spring, which is engaged in the slot and abuts against the side of the base facing the handle module.

[0016] In one embodiment, a sleeve is provided on the side of the base away from the handle module, the sleeve is fitted onto the rotating section, and the inner circumferential surface of the sleeve is in contact with the outer circumferential surface of the rotating section.

[0017] In one embodiment, the outer peripheral surface of the rotating section is provided with a radially extending limiting boss, and the side of the sleeve opposite to the base abuts against the limiting boss.

[0018] In one embodiment, the transmission assembly includes a handle head and a rotating plate. The handle head includes a first end and a second end opposite to each other. The handle head is provided with a receiving groove that penetrates the end face of the second end. One end of the shaft is received in the receiving groove. The first end is connected to the handle and fixedly connected to the end of the shaft. The rotating plate is engaged with the second end. The first actuating member is disposed on the rotating plate and extends in a direction away from the first end.

[0019] In one embodiment, the concealed base handle further includes a first fastener, which passes through the first end and is screwed to the shaft in the receiving groove; and / or, the second end of the handle head is provided with a radially opening limiting groove, the limiting groove communicating with the outside, and the rotating piece has a limiting member extending radially inward, the limiting member engaging with the limiting groove.

[0020] In one embodiment, the handle has a first receiving groove and a second receiving groove that are connected to each other. The first receiving groove can accommodate the transmission component, and the second receiving groove can accommodate at least a portion of the base. The handle also has a side hole that communicates with the first receiving groove. The concealed base handle also includes a second fastener that can extend into the side hole and abut against the transmission component to restrict the axial movement of the transmission component.

[0021] This utility model provides a concealed base handle, comprising a base, a shaft, a handle module, and a handle. By fitting the handle onto the base, the base is hidden within the handle, meaning the user cannot see the base of the concealed base handle, making it more aesthetically pleasing. The handle module includes a transmission component and a reset component. At least a portion of the reset component is positioned on the rotation path of the first actuating component of the transmission component, allowing the transmission component to deform when it rotates and rotate in the opposite direction under the reset component's return action. The handle is connected to the transmission component to achieve this, enabling the handle to rotate in the opposite direction and reset, eliminating the need for manual handle reset and reducing the operational difficulty of the concealed base handle. In short, the concealed base handle provided by this utility model is more aesthetically pleasing and easier to operate.

[0022] These or other aspects of this invention will become more apparent in the following description of the embodiments. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the hidden base handle provided by this utility model.

[0025] Figure 2 yes Figure 1 An exploded view of the concealed base handle shown.

[0026] Figure 3 yes Figure 1 The diagram shows the assembly of the handle module and base of the concealed base handle from a top-down view.

[0027] Figure 4 yes Figure 1 The rear view of the concealed base handle shown.

[0028] Figure 5 yes Figure 4 A cross-sectional view along the AA direction.

[0029] Figure 6 yes Figure 5 A magnified view of a section at point B.

[0030] Figure 7 yes Figure 1 An exploded view of the transmission assembly of the concealed base handle shown.

[0031] Figure 8 yes Figure 1 Another exploded view of the concealed base handle shown. Detailed Implementation

[0032] To facilitate understanding of the embodiments of this utility model, a more comprehensive description of the embodiments of this utility model will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the embodiments of this invention is for the purpose of describing particular implementations only and is not intended to be limiting of the invention.

[0034] Please see Figures 1 to 3The concealed base handle 10 provided by this utility model includes a base 11, a shaft 13, a handle module 15, and a handle 16. The shaft 13 is rotatably mounted on the base 11. The handle module 15 includes a transmission assembly 151 and a reset member 153. The transmission assembly 151 is rotatably mounted on one side of the base 11 and fixedly connected to the shaft 13. The reset member 153 is limited and mounted on the base 11. The transmission assembly 151 is provided with a first actuating member 1516. At least a portion of the reset member 153 is disposed on the rotation path of the first actuating member 1516 so that when the transmission assembly 151 rotates, it can drive the reset member 153 to deform and rotate in the opposite direction under the action of the reset member 153 returning to its original position. The handle 16 is sleeved on the outer periphery of the base 11 and connected to the transmission assembly 151 so as to drive the shaft 13 to rotate through the transmission assembly 151.

[0035] Specifically, the base 11 is generally cylindrical. The base 11 can be installed on the door panel. More specifically, the base 11 can be fixed to the door panel with screws.

[0036] The base 11 has a first abutting protrusion 111 on the side facing the handle module 15, which can abut against at least a portion of the reset member 153. The base 11 also has a second abutting protrusion 113 spaced apart from the first abutting protrusion 111 on the side facing the handle module 15. Specifically, the first abutting protrusion 111 and the second abutting protrusion 113 are spaced apart circumferentially from the base 11.

[0037] A sleeve 115 is provided on the side of the base 11 away from the handle module 15. The sleeve 115 is sleeved on the shaft 13. The inner circumferential surface of the sleeve 115 is in contact with the outer circumferential surface of the shaft 13, so that the sleeve 115 can restrict the radial swing of the shaft 13, making the operation of the hidden base type handle 10 more reliable.

[0038] Please see Figure 2 , Figure 4 and Figure 5 The shaft 13 includes a plug section 132, a rotating section 134, and a connecting section 136 connected in sequence, with the plug section 132, rotating section 134, and connecting section 136 arranged sequentially along the axial direction of the shaft 13. The plug section 132 can be plugged into the lock cylinder to rotate the lock cylinder, thereby locking or unlocking.

[0039] The rotating section 134 passes through the base 11 and can rotate relative to the base 11, so that the shaft 13 can rotate relative to the base 11 under the drive of the handle 16. In this embodiment, the sleeve 115 is sleeved on the rotating section 134, and the inner circumferential surface of the sleeve 115 is in contact with the outer circumferential surface of the rotating section 134.

[0040] The outer circumferential surface of the rotating section 134 is provided with a radially extending limiting boss 1342, and the side of the sleeve 115 facing away from the base 11 abuts against the limiting boss 1342. This allows the limiting boss 1342 to stop the axial movement of the base 11, allowing the shaft 13 to pass through the base 11 and rotate relative to the base 11, but not move axially relative to the base 11. In other words, the shaft 13 is effectively positioned and fitted onto the base 11.

[0041] The connecting section 136 is connected to the transmission assembly 151, enabling the transmission assembly 151 to drive the shaft 13 to rotate. Specifically, the connecting section 136 and the transmission assembly 151 can be connected by means of screws, welding, or bonding.

[0042] The reset member 153 includes a body 1532 and a first extension arm 1534 extending radially from the body 1532 along the shaft 13. The length of the first extension arm 1534 is greater than the minimum distance from the body 1532 to the first abutment protrusion 111, such that the first abutment protrusion 111 can stop the first extension arm 1534. The first abutment protrusion 111 can abut against the first extension arm 1534 of the reset member 153 when the reset member 153 returns to its original shape, such that the first abutment protrusion 111 can limit the rotation angle of the transmission assembly 151. That is, the first abutment protrusion 111 can limit the angle of reverse rotation of the transmission assembly 151 under the action of the reset member 153 returning to its original shape.

[0043] In the illustrated embodiment, the body 1532 has a helical ring structure. The body 1532 is disposed on the base 11 and sleeved on the shaft 13. Further, the reset member 153 can be a torsion spring.

[0044] The first abutment protrusion 111 and the first actuating member 1516 are disposed on the same side of the first extension arm 1534, and in the radial direction, the first actuating member 1516 is located between the outer peripheral surface of the body 1532 and the first abutment protrusion 111. Thus, when an external force is applied to rotate the handle 16 to drive the transmission assembly 151 to rotate, the first actuating member 1516 of the transmission assembly 151 rotates and abuts against the first extension arm 1534, thereby causing the reset member 153 to deform; when the external force is removed, the reset member 153 returns to its original position, causing the first extension arm 1534 to drive the first actuating member 1516 to rotate in the opposite direction; when the reverse rotation reaches a certain angle, the first extension arm 1534 abuts against the first abutment protrusion 111.

[0045] In the illustrated embodiment, the reset member 153 further includes a second extension arm 1536 extending radially from the body 1532 along the shaft 13. The length of the second extension arm 1536 is greater than the minimum distance from the body 1532 to the second abutment protrusion 113. This allows the second abutment protrusion 113 to stop the second extension arm 1536. The second abutment protrusion 113 can abut against the second extension arm 1536 of the reset member 153 when the reset member 153 returns to its original shape, thereby limiting the rotation angle of the transmission assembly 151. That is, the second abutment protrusion 113 can limit the angle of reverse rotation of the transmission assembly 151 under the action of the reset member 153 returning to its original shape.

[0046] Please see Figures 6 to 8 The transmission assembly 151 also includes a second actuating member 1517. The second abutting protrusion 113 and the second actuating member 1517 are located on the same side of the second extension arm 1536, and radially, the second actuating member 1517 is located between the outer peripheral surface of the body 1532 and the second abutting protrusion 113. Thus, when an external force is applied to the transmission assembly 151, the second actuating member 1517 of the transmission assembly 151 rotates and abuts against the second extension arm 1536, thereby causing the reset member 153 to deform. When the external force is removed, the reset member 153 returns to its original position, causing the second extension arm 1536 to drive the second actuating member 1517 to rotate in the opposite direction. After rotating in the opposite direction to a certain angle, the second extension arm 1536 abuts against the second abutting protrusion 113.

[0047] In the illustrated embodiment, when the handle 16 drives the transmission assembly 151 to rotate counterclockwise, the first actuating member 1516 can abut against the first extension arm 1534. When the external force is removed, the reset member 153 can drive the transmission assembly 151 to rotate clockwise, thereby driving the shaft 13 to rotate clockwise. When the handle 16 drives the transmission assembly 151 to rotate clockwise, the second actuating member 1517 can abut against the second extension arm 1536. When the external force is removed, the reset member 153 can drive the transmission assembly 151 to rotate counterclockwise, thereby driving the shaft 13 to rotate counterclockwise. That is to say, regardless of which direction the handle 16 rotates, it can achieve a reset, thereby realizing bidirectional automatic reset of the hidden base handle 10, further reducing the operation difficulty of the hidden base handle 10 and expanding the application range of the hidden base handle 10. In a specific embodiment, when the hidden base handle 10 is used with a lock, pressing down or lifting the handle 16 can achieve automatic reset, improving the ease of operation.

[0048] In the illustrated embodiment, the first abutment protrusion 111 and the second abutment protrusion 113 are disposed at both radial ends of the base 11, that is, the connecting line of the first abutment protrusion 111 and the second abutment protrusion 113 passes through the central axis of the base 11. The first abutment protrusion 111 and the second abutment protrusion 113 are circumferentially disposed between the first extension arm 1534 and the second extension arm 1536. The first actuating member 1516 abuts against the first extension arm 1534, and the second actuating member 1517 abuts against the second extension arm 1536. In this way, the handle 16 can rotate at any angle to drive the shaft 13 to rotate, avoiding the handle 16 from spinning freely and improving the operating feel of the hidden base type handle 10. Moreover, the first extension arm 1534 of the reset member 153 can abut against the first abutment protrusion 111 on the base 11, and the second extension arm 1536 can abut against the second abutment protrusion 113 on the base 11, so that the reset member 153 can be limited and disposed on the base 11.

[0049] Please continue reading. Figure 2 The transmission assembly 151 includes a handle head 1510 and a rotating plate 1515. The handle head 1510 is a generally hollow cylindrical structure. The handle head 1510 includes a first end 1511 and a second end 1512, which are axially arranged. The handle head 1510 is provided with a receiving groove 1513, which penetrates the end face of the second end 1512 and extends axially toward the first end 1511. One end of the shaft 13 is received in the receiving groove 1513; specifically, the connecting section 136 of the shaft 13 is received in the receiving groove 1513.

[0050] The first end 1511 is connected to the handle 16 and fixed to the end of the shaft 13. Specifically, the cross-section of the first end 1511 can be square, that is, the first end 1511 is approximately a square rod, and the handle 16 can be provided with a square groove to receive the first end 1511. In this way, rotating the handle 16 can drive the transmission assembly 151 to rotate. The rotating plate 1515 is engaged with the second end 1512, so that the handle head 1510 can drive the rotating plate 1515 to rotate.

[0051] Please see Figure 7 The first actuating member 1516 is disposed on the rotating plate 1515 and extends in a direction away from the first end 1511. The second actuating member 1517 is also disposed on the rotating plate 1515 and extends in a direction away from the first end 1511. Therefore, when the handle head 1510 drives the rotating plate 1515, it will also cause the first actuating member 1516 to abut against the first extension arm 1534, and cause the second actuating member 1517 to abut against the second extension arm 1536.

[0052] The second end 1512 of the handle head 1510 is provided with a radially opening limiting groove 1514, which communicates with the outside. In the illustrated embodiment, the limiting groove 1514 penetrates the receiving groove 1513. In other embodiments, the limiting groove 1514 may not penetrate the receiving groove 1513. The rotating piece 1515 has a radially inwardly extending limiting member 1518, which engages with the limiting groove 1514, so that the rotating piece 1515 is connected to the handle head 1510 and can rotate with the handle head 1510. In this embodiment, the limiting member 1518 may be interference-fitted with the limiting groove 1514. In other embodiments, the limiting member 1518 is adapted to the limiting groove 1514.

[0053] Please see Figure 5 and Figure 6 The handle 16 has a first receiving groove 161 and a second receiving groove 163 that are connected to each other. The first receiving groove 161 can accommodate the transmission component 151, and the groove wall of the first receiving groove 161 can be adapted to the outer surface of the handle head 1510, so that the handle head 1510 is limited and installed in the first receiving groove 161. The second receiving groove 163 can accommodate at least a portion of the base 11, so that the base 11 can be completely hidden, and there is no exposed structure on the door surface, which improves the aesthetics of the hidden base type handle 10.

[0054] Please see Figure 7 and Figure 8 The concealed base handle 10 also includes a first fastener 18, which passes through the first end 1511 and is screwed to the shaft 13 within the receiving groove 1513. The first end 1511 may have a through hole communicating with the receiving groove 1513, through which the first fastener 18 passes to be threadedly connected to the shaft 13. Specifically, the end of the connecting section 136 of the shaft 13 may have an internal thread, and the first fastener 18 may be a bolt. By screwing the bolt to the internal thread at the end of the shaft 13, the handle head 1510 and the shaft 13 can be fixedly connected, thereby achieving a fixed connection between the transmission assembly 151 and the shaft 13.

[0055] The concealed base handle 10 also includes a retaining spring 17. A retaining groove 1362 is provided on the side of the connecting section 136 near the rotating section 134. The retaining spring 17 is engaged in the retaining groove 1362 and abuts against the side of the base 11 facing the handle module 15, thereby limiting the installation of the shaft 13 on the base 11 and preventing the shaft 13 from moving axially. Thus, during installation, the concealed base handle 10 can be installed by first fixing the base 11 to the door panel, and then assembling the shaft 13 to the base 11 using the retaining spring 17.

[0056] The concealed base handle 10 also includes a second fastener 19. The handle 16 also has a side hole 165 communicating with the first receiving groove 161. The second fastener 19 can extend into the side hole 165 and abut against the transmission assembly 151 to restrict the axial movement of the transmission assembly 151. Specifically, the inner wall of the side hole 165 may be provided with internal threads, and the second fastener 19 is a set screw. Through the threaded connection between the set screw and the side hole 165, the set screw can move radially to abut against the transmission assembly 151, thereby restricting the axial movement of the transmission assembly 151 and fixing the transmission assembly 151 in the handle 16.

[0057] In the illustrated embodiment, when the handle 16 needs to be reversed, only the second fastener 19 needs to be removed to separate the handle 16 from the transmission assembly 151. Then, the handle 16 is rotated 180°, and finally, the second fastener 19 is inserted into the side hole 165 to secure the transmission assembly 151. The entire reversing process is simple to operate. When replacing the reset piece 153, only the further first fastener 18 needs to be removed, without disassembling the door panel, thus reducing the maintenance cost of the concealed base handle 10.

[0058] In summary, the concealed base handle 10 provided by this utility model includes a base 11, a shaft 13, a handle module 15, and a handle 16. By fitting the handle 16 onto the base 11, the base 11 can be hidden within the handle 16, meaning the user cannot see the base 11 of the concealed base handle 10 from the outside, making the concealed base handle 10 more aesthetically pleasing. The handle module 15 includes a transmission component 151 and a reset component 153. At least a portion of the reset component 153 is disposed on the rotation path of the first actuating component 1516 of the transmission component 151, so that when the transmission component 151 rotates, it can drive the reset component 153 to deform, and under the action of the reset component 153 returning to its original position, it can rotate in the opposite direction. The handle 16 is connected to the transmission component 151 to achieve this, thereby driving the handle 16 to rotate in the opposite direction and achieving the reset of the handle 16. The handle 16 does not need to be manually reset, reducing the operational difficulty of the concealed base handle 10. In other words, the concealed base handle 10 provided by this utility model is more aesthetically pleasing and easier to operate.

[0059] In this utility model, unless otherwise explicitly specified or limited, the term "assembly" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; it can be merely surface contact; or it can be a surface contact connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this utility model, as well as the features of different embodiments or examples.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A concealed base type handle, characterized in that, include: Base; A shaft, which is rotatably mounted on the base; A handle module, comprising a transmission assembly and a reset member, wherein the transmission assembly is rotatably disposed on one side of the base and fixedly connected to the shaft, the reset member is limited and disposed on the base, the transmission assembly is provided with a first actuating member, at least a portion of the reset member is disposed on the rotation path of the first actuating member, so that when the transmission assembly rotates, it can drive the reset member to deform, and rotate in the opposite direction under the action of the reset member returning to its original position; and A handle is fitted around the outer periphery of the base and connected to the transmission assembly to drive the shaft to rotate via the transmission assembly.

2. The concealed base handle according to claim 1, characterized in that, The base has a first abutting protrusion on the side facing the handle module. The reset member includes a body and a first extension arm extending radially from the body along the shaft. The length of the first extension arm is greater than the minimum distance from the body to the first abutting protrusion. The first abutting protrusion and the first actuating member are disposed on the same side of the first extension arm, and radially, the first actuating member is located between the outer peripheral surface of the body and the first abutting protrusion.

3. The concealed base handle according to claim 2, characterized in that, The base also has a second abutment protrusion spaced apart from the first abutment protrusion on the side facing the handle module. The reset member also includes a second extension arm extending radially from the body along the shaft. The length of the second extension arm is greater than the minimum distance from the body to the second abutment protrusion. The transmission assembly also includes a second actuating member. The second abutment protrusion and the second actuating member are disposed on the same side of the second extension arm, and radially, the second actuating member is located between the outer peripheral surface of the body and the second abutment protrusion.

4. The concealed base handle according to claim 3, characterized in that, The first abutting protrusion and the second abutting protrusion are disposed at both radial ends of the base; and / or, the first abutting protrusion and the second abutting protrusion are disposed circumferentially between the first extension arm and the second extension arm, the first actuating member abuts against the first extension arm, and the second actuating member abuts against the second extension arm.

5. The concealed base handle according to claim 1, characterized in that, The shaft includes a plug-in section, a rotating section, and a connecting section connected in sequence. The plug-in section can be plugged into the lock cylinder. The rotating section passes through the base. The connecting section is connected to the transmission assembly. A slot is provided on the side of the connecting section near the rotating section. The hidden base handle also includes a retaining spring. The retaining spring is engaged in the slot and abuts against the side of the base facing the handle module.

6. The concealed base handle according to claim 5, characterized in that, A sleeve is provided on the side of the base away from the handle module. The sleeve is fitted onto the rotating section, and the inner circumferential surface of the sleeve is in contact with the outer circumferential surface of the rotating section.

7. The concealed base handle according to claim 6, characterized in that, The outer circumferential surface of the rotating section is provided with a limiting boss that extends radially, and the side of the sleeve opposite to the base abuts against the limiting boss.

8. The concealed base handle according to claim 1, characterized in that, The transmission assembly includes a handle head and a rotating plate. The handle head includes a first end and a second end opposite to each other. The handle head is provided with a receiving groove that penetrates the end face of the second end. One end of the shaft is received in the receiving groove. The first end is connected to the handle and fixedly connected to the end of the shaft. The rotating plate is engaged with the second end. The first actuating member is disposed on the rotating plate and extends in a direction away from the first end.

9. The concealed base handle according to claim 8, characterized in that, The concealed base handle further includes a first fastener, which passes through the first end and is screwed to the shaft in the receiving groove; and / or, the second end of the handle head is provided with a radially opening limiting groove, the limiting groove communicating with the outside, and the rotating piece has a limiting member extending radially inward, the limiting member engaging with the limiting groove.

10. The concealed base handle according to any one of claims 1-9, characterized in that, The handle is provided with a first receiving groove and a second receiving groove that are connected to each other. The first receiving groove can accommodate the transmission component, and the second receiving groove can accommodate at least a portion of the base. The handle is also provided with a side hole that communicates with the first receiving groove. The hidden base type handle also includes a second fastener that can extend into the side hole and abut against the transmission component to restrict the axial movement of the transmission component.

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