An externally mounted lock body with quick handle installation

Abstract

The present invention relates to the technical field of locks, and discloses an external lock body with quick handle installation, including a mounting seat and a handle. The handle includes a rotating part and a handheld part that extends vertically to one side at one end of the rotating part. The end of the rotating part away from the handheld part is inserted and matched with the mounting seat. A quick installation mechanism is provided in the mounting seat. When the rotating part is inserted into a specified position, with the rotation of the rotating part by a certain angle, axial limitation of the rotating part relative to the mounting seat is achieved. The quick installation mechanism includes a limiting body, a limiting ring groove recessed on the outer ring wall of the rotating part away from the handheld part, a holding part that drives the limiting body to float outside the limiting ring groove, and a pushing member that moves along the axial direction of the rotating part away from the handheld part as the rotating part rotates. As the pushing member advances, the holding ring is pushed open and the limiting body is pushed to partially enter the limiting ring groove. This external lock body can quickly replace the handle according to the user's usage habit and change the direction of the handheld part of the handle.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to an external lock body with quick installation of a handle. Background Art

[0002] A lock body includes an external lock body located outside the door and an internal lock body located inside the door. The outer handle of the external lock body is connected to the inner handle of the internal lock body through a transmission rod in the shape of a cuboid. A control structure is provided on the internal lock body to limit the rotational stroke of the transmission shaft to control the rotation angle range of the handle within 90°.

[0003] The structure of the lock body can refer to a door lock disclosed in a Chinese patent with the publication number CN210530508U, including a first box body, a first handle, and a first lock core rotating member disposed in the first box body and connected to the first handle; a second box body, a second handle, and a second lock core disposed in the second box body and connected to the second handle. The two ends of the transmission rod are respectively fixedly connected to the first lock core rotating member and the second lock core rotating member. A limiting groove is provided on the first box body. Two symmetrically arranged convex columns on the first lock core rotating member extend into the limiting groove. The convex columns move in the limiting groove, and the length of the limiting groove limits the rotation angle of the first handle within 90°.

[0004] In the above structure, the cooperation between the limiting groove and the convex column controls the rotation angle of the inner and outer handles within 90°. During installation, the operator needs to first install the external lock body and then install the internal lock body. During the installation of the internal lock body, the connection and cooperation between the transmission rod and the first lock core rotating member and the second lock core rotating member, as well as the cooperation between the limiting groove and the convex column, are completed.

[0005] Based on the support of the above prior art, the existing lock body has the following problems. The existing handle, relative to the box body, has a fixed installation method suitable for right-handed people at the time of leaving the factory. The handle is rotationally fitted with the box body by riveting, and once the handle is installed, it cannot be disassembled from the box body. This results in that for consumers with different hand usage habits such as left-handed people, they cannot change the installation orientation of the handle they need when installing the door lock, leading to discomfort in subsequent use. Summary of the Invention

[0006] Aiming at the disadvantage that the handle and the mounting seat of the prior art are already assembled and non-detachable, resulting in the inability to be suitable for users with different left and right hand usage habits at the same time, an external lock body with quick installation of a handle is provided.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0008] An externally mounted lock body with quick - fitting handle, comprising a mounting base and a handle. The handle includes a rotating part and a hand - held part extending vertically to one side at one end of the rotating part. The end of the rotating part away from the hand - held part is in plug - in fit with the mounting base. Inside the mounting base, there is a quick - fitting mechanism that, when the rotating part is inserted to a specified position, realizes axial limit of the rotating part relative to the mounting base as the rotating part rotates by a certain angle. The quick - fitting mechanism includes a limiting body, a limiting ring groove recessed on the outer circumferential wall of the rotating part away from the hand - held part, a holding part for driving the limiting body to float outside the limiting ring groove, and a pushing member that moves along the axial direction of the rotating part away from the hand - held part as the rotating part rotates. As the pushing member advances, the holding ring is pushed open and the limiting body is pushed to partially enter the limiting ring groove.

[0009] With the above - mentioned solution, the handle and the mounting base are quickly assembled through the quick - fitting mechanism. The assembly process is as follows: after inserting the rotating part of the handle into the mounting base and rotating it by a certain angle, axial limit between the handle and the mounting base can be achieved. The principle is that the rotation of the handle can drive the pushing member to advance, the pushing member can drive the holding part to open, and the limiting body accommodated in the holding part is partially pushed into the limiting ring groove. The limiting body is partially located inside the mounting base and partially embedded in the limiting ring groove of the rotating part, realizing axial limit of the handle relative to the mounting base. Since the limiting ring groove of the handle is annular, the handle can rotate relative to the mounting base. Before installing the internal lock body, by pressing the holding part from the end of the mounting base away from the handle, the rolling body can be made to disengage from the limiting ring groove again, realizing detachment of the handle from the mounting base. Therefore, the above - mentioned solution can change the direction of the hand - held part of the handle according to the user's usage habit.

[0010] Preferably, the limiting body is a rolling body, and at least one rolling body is distributed circumferentially around the rotating part.

[0011] With the above - mentioned solution, the advantage of using a rolling body as the limiting body is that it can not only realize axial limit of the handle relative to the mounting base, but also change the sliding friction between the limiting body and the limiting ring groove into rolling friction, improving the lubricity of the handle rotation.

[0012] Preferably, the holding part includes a first holding ring and a second holding ring arranged separately. On the side where the first holding ring and the second holding ring face each other, there are grooves for accommodating part of the rolling body. As the distance between the first holding ring and the second holding ring changes, the rolling body can be completely accommodated between the two grooves or partially protrude into the limiting ring groove.

[0013] With the above - mentioned solution, the distance between the first holding ring and the second holding ring gradually increases as the pushing ring advances, and the rolling body changes from being completely accommodated between the first holding ring and the second holding ring to partially entering the limiting ring groove.

[0014] Preferably, the bottom and the side wall of the groove are in an arc transition that fits the rolling elements. The advancing member is an advancing ring sleeved outside the holding portion. An arc groove for accommodating partial rolling elements is provided at one end of the inner ring wall of the advancing ring away from the hand-held portion.

[0015] With the above solution, the advancing ring can stably push the first holding ring away from the second holding ring. The arc transition at the bottom of the groove, combined with the arc groove of the advancing ring, can limit the rolling elements and drive the rolling elements to roll smoothly when the first holding ring approaches the second holding ring. As the advancing ring advances, the arc groove can drive the rolling elements to move smoothly downward until part of them enter the limit ring groove.

[0016] Preferably, a through groove for inserting the hand-held portion is provided on the mounting seat. A receiving ring for accommodating the advancing ring extends in the mounting seat with the through groove as the center. A baffle for limiting the maximum movement stroke of the first holding ring is detachably provided at one end of the mounting seat away from the handle.

[0017] With the above solution, the baffle is provided to limit the maximum movement stroke of the first holding ring. While ensuring that as the advancing ring advances, the rolling elements can partially enter the limit ring groove, it also limits the first holding ring and the advancing ring from disengaging from the mounting seat.

[0018] Preferably, a matching structure is provided between the mounting seat, the quick-release mechanism, and the handle. The matching mechanism includes a synchronization mechanism for driving the rotation of the rotation portion, the first holding ring, and the advancing ring synchronously and an advancing mechanism for driving the advancing ring to advance axially along the rotation portion during rotation between the advancing ring and the mounting seat.

[0019] With the above solution, since the advancing ring, the first holding ring, and the rotation portion are in a synchronous rotation state, when there is an advancing mechanism between the advancing ring and the mounting seat, it can drive the advancing portion to push towards the first holding ring, increase the distance between the first holding ring and the second holding ring, and can partially press the rolling elements into the limit ring groove.

[0020] Preferably, the synchronous rotation mechanism includes a first slot recessed at one end of the rotation portion away from the hand-held portion and a first insertion block protruding from the inner ring wall of the first holding ring and insertable into the first slot. A second insertion block protrudes from the outer wall of the first holding ring, and a second slot for inserting the second insertion block is provided on the side of the advancing ring facing the first holding ring.

[0021] With the above solution, the first insertion block provided on the first holding ring is inserted and matched with the first slot of the handle, and the second insertion block on the first holding ring is inserted and matched with the second slot on the advancing ring, thereby realizing the synchronous rotation of the three.

[0022] Preferably, the jacking mechanism includes a slider protruding from one end of the jacking ring near the handheld part, a fitting surface provided on the side of the mounting seat away from the handheld part, and a chute that is circumferentially recessed with the through groove as the center on the fitting surface for the slider to be inserted and slide. An export mechanism is provided between the slider and the chute to facilitate the slider to escape from the chute and fit with the fitting surface. The jacking distance of the jacking ring is the depth of the jacking ring inserted into the chute.

[0023] With the above solution, through the export mechanism, the slider can be switched between two states of being inserted into the chute or fitting with the fitting surface, and the jacking ring can be jacked in the direction of the first cage by the depth that the jacking ring was previously inserted into the ring groove.

[0024] Preferably, the export mechanism includes first guide slopes provided on both sides of the slider and second guide slopes provided on both sides of the chute and cooperating with the first guide slopes.

[0025] With the above solution, when the slider moves until the first guide slope fits with the second guide slope, as the handle continues to rotate, the slider on the jacking ring is gradually drawn out of the chute. As the slider moves out of the chute, the corresponding movement is that the jacking ring moves forward in the direction of the first retaining ring.

[0026] Preferably, at least one group of chutes is axially spaced around the rotating part. Each group has at least one chute. The groups are concentric and have different circumferences, and the angle difference between each group is greater than the rotation stroke after the rotating part is installed.

[0027] With the above solution, each group only needs more than one chute to cooperate with the corresponding number of sliders on the jacking ring to achieve the jacking of the jacking ring. By setting more than one group, the groups are concentric and have different circumferences, and the angle difference between each group is greater than the rotation stroke after the rotating part is installed. Within the rotation stroke of the handle, the jacking ring can achieve a sufficient distance of jacking, and the jacking ring can partially push the rolling elements into the limiting groove to achieve the axial limit between the handle and the mounting seat.

[0028] Preferably, a holding mechanism is provided between the jacking ring and the mounting seat to keep the handheld part in a horizontal state when the rotating part is inserted into the through groove. The holding mechanism includes two cut surfaces arranged in parallel on the outer wall of the jacking ring, a moving block that is elastically slidably arranged on the mounting seat and can approach or move away from the jacking ring. The side of the moving block close to the cut surface is a plane that fits with the cut surface, and an elastic member is provided between the mounting seat and the moving block to drive the moving block to elastically press against the cut surface.

[0029] With the above solution, the holding mechanism can ensure that the handheld part is in a horizontal state when the handle is inserted. The advantage of this setting is that when the axial limit between the handle and the mounting seat is achieved, the handle still remains in a horizontal state.

[0030] Due to the adoption of the above technical solutions, the present invention has significant technical effects:

[0031] 1. The handle and the mounting base are quickly assembled through a quick assembly mechanism. The rotation of the handle can drive the jacking member to jack in. The jacking member can drive the holding part to open, and partially jack the limiting body placed inside the holding part into the limiting ring groove. The limiting body is partially located inside the mounting base and partially embedded in the limiting ring groove of the rotating part, realizing the axial limit of the handle relative to the mounting base. Since the limiting ring groove of the handle is annular, the handle can rotate relative to the mounting base. Before installing the internal lock body, the above structure only needs to press the holding part from the end of the mounting base away from the handle to drive the rolling body to disengage from the limiting ring groove again, realizing the disassembly of the handle from the mounting base. Therefore, the above solution can change the direction of the hand-held part of the handle according to the user's usage habit;

[0032] 2. The principle of the jacking ring jacking the first holding ring is that the sliding block on the jacking ring and the sliding groove in the mounting base are switched from the inserted state to the exported state under the action of the export mechanism and the synchronization mechanism. The jacking distance of the jacking member is the insertion depth of the sliding block in the sliding groove. The jacking member jacks the first holding ring and partially presses the rolling body into the limiting ring groove. Description of the Drawings

[0033] Figures 1-2 is an axonometric view of an external lock body with quick assembly of the handle in this embodiment;

[0034] Figure 3 is a sectional view of an external lock body with quick assembly of the handle in this embodiment;

[0035] Figure 4 is Figure 3 an enlarged view of A of

[0036] Figure 5 is Figure 4 a sectional view when the rolling body of

[0037] Figure 6 is an exploded view of an external lock body with quick assembly of the handle in this embodiment;

[0038] Figure 7 is Figure 6 an enlarged view of B of

[0039] Figure 8 is the front view of the holding part in this embodiment;

[0040] Figure 9 is an axonometric view when the holding part, the rolling body and the jacking ring are assembled in this embodiment;

[0041] Figures 10-11 is an exploded view of the handle, the holding part, the rolling body and the jacking ring in this embodiment.

[0042] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. handle; 11. rotating part; 111. limiting ring groove; 112. first slot; 113. third slot; 12. hand-held part; 2. mounting seat; 21. through slot; 22. accommodating ring; 23. slide groove; 231. second guide slope; 232. fitting surface; 24. internal thread column; 3. baffle; 31. through hole; 32. through hole; 33. operating hole; 4. moving block; 41. waist groove; 5. elastic member; 6. first retaining ring; 61. first plug block; 62. second plug block; 7. second retaining ring; 8. rolling body; 9. ejection ring; 91. slider; 911. first guide slope; 92. second slot; 93. cut surface; 94. arc groove; 10. groove. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] Example

[0045] An external lock body with a handle that is quickly installed, referring to Figures 1-11 As shown, it includes a mounting base 2 and a handle 1, the handle 1 includes a rotating part 11 and a hand-held part 12 extending vertically to one side at one end of the rotating part 11, and a third slot 113 for inserting a rectangular transmission rod is provided at the end of the rotating part 11 away from the handle 1, and a through slot 21 for inserting the rotating part 11 is provided on the mounting base 2, all of which are prior arts.

[0046] A quick-installation mechanism is provided in the mounting seat 2 , which can realize axial limitation of the rotating part relative to the mounting seat 2 as the rotating part 11 rotates a certain angle after the rotating part 11 is inserted into a specified position.

[0047] The quick-install mechanism includes a push-in member, a stopper and a retaining member arranged in the mounting seat 2, combined with Figure 10 and Figure 11 As shown, the above-mentioned stopper is preferably a spherical rolling body 8, and the rolling body 8 can be distributed around the circumference of the rotating part 11. In this embodiment, 12 rolling bodies are provided. The retaining part includes a first retaining ring 6 and a second retaining ring 7 that are separately provided. Figure 7 As shown, a groove 10 for accommodating a part of the rolling body 8 is provided on the side opposite to the first retaining ring 6 and the second retaining ring 7, and the bottom and the side wall of the groove 10 are in an arc transition that fits the rolling body 8. The advantage of such a setting is that when the distance between the side walls of the two grooves 10 is the diameter of the rolling body 8, the rolling body 8 can be limited to escape from the two grooves 10; when the distance between the side walls of the two grooves 10 is reduced from greater than the diameter of the rolling body 8 to the diameter of the rolling body 8, the partially outward-placed rolling body 8 can be stored back in the groove 10 again, and the rolling body 8 can be placed in the groove 10 again. Figure 5 , Figure 6 and Figure 9As shown in the figure, the jacking member is a jacking ring 9 sleeved outside the holding portion. An arc groove 94 for accommodating partial rolling elements 8 is provided at one end of the inner ring wall of the jacking ring 9 away from the hand-held portion 12. When the groove 10 accommodates the rolling elements 8, the arc groove 94 just fits with the rolling elements 8. As the jacking ring 9 jacks in, the rolling elements 8 gradually come out of the arc groove 94. When the outer ring of the rolling elements 8 disengages from the arc groove 94, the inner ring wall of the jacking ring 9 presses the rolling elements 8 radially. A limiting ring groove 111 is provided on the outer ring wall at one end of the rotating portion 11 away from the hand-held portion 12. When the jacking ring 9 jacks the first holding ring 6 to move towards the side away from the second holding ring 7, the rolling elements 8 are partially pressed into the limiting ring groove 111. At this time, the axial limit of the rotating portion 11 relative to the mounting seat 2 is realized.

[0048] Referring to Figure 6 As shown in the figure, a receiving ring 22 for the telescopic movement of the jacking ring 9 is convexly provided on the mounting seat 2 with the through groove 21 as the center. A baffle 3 for restricting the movement stroke of the first holding ring 6 is detachably fixed at one end of the mounting seat 2 away from the handle 1. The receiving ring 22 and the baffle 3 can install the jacking ring 9, the holding portion, the rolling elements 8, etc. in the mounting seat 2.

[0049] The jacking of the jacking member is controlled by the rotation of the rotating portion 11. To achieve the above purpose, a matching structure is provided between the mounting seat 2, the quick-release mechanism and the handle 1. The matching mechanism includes a synchronous mechanism for driving the rotation of the rotating portion 11, the first holding ring 6 and the jacking ring 9 to rotate synchronously and a jacking mechanism for driving the jacking ring 9 to axially jack along the rotating portion 11 during rotation between the jacking ring 9 and the mounting seat 2.

[0050] Referring to Figure 9 As shown in the figure, the synchronous rotation mechanism includes first slots 112 recessed on both sides of the third slot 113 at one end of the rotating portion 11 away from the hand-held portion 12, and first inserting blocks 61 protruding from the inner ring wall of the first holding ring 6 and insertable into the first slots 112. A second inserting block 62 protrudes from the outer wall of the first holding ring 6. A second slot 92 for inserting the second inserting block 62 is provided on the side of the jacking ring 9 facing the first holding ring 6. Through the above structure, the jacking ring 9 and the first holding ring 6 have a tendency to rotate synchronously when the rotating portion 11 rotates.

[0051] Combined with Figures 4-6 As shown in the figure, the jacking mechanism includes a slider 91 protruding from one end of the jacking ring 9 close to the hand-held portion 12, a fitting surface 232 provided on one side of the mounting seat 2 away from the hand-held portion 12, a chute 23 recessed circumferentially with the through groove 21 as the center on the fitting surface 232 for the slider 91 to be embedded and slide, and a guiding mechanism for facilitating the slider 91 to come out of the chute 23 and fit with the fitting surface 232. Combined with Figure 7As shown, the ejection mechanism includes first guide inclined surfaces 911 provided on both sides of the slider 91 and second guide inclined surfaces 231 provided on both sides of the chute 23 and mating with the first guide inclined surfaces 911. The chutes 23 are axially spaced around the rotating portion 11 in at least one group, with at least one chute in each group. The groups are concentric but have different circumferences, and the angle difference between each group is greater than the rotation stroke of the rotating portion 11 after installation. The ejection distance of the ejection ring 9 is the depth at which the ejection ring 9 is inserted into the chute 23. Therefore, when the slider 91 moves to a position where the first guide inclined surface 911 is in contact with the second guide inclined surface 231, as the handle 1 continues to rotate, the slider 91 on the ejection ring 9 can be gradually withdrawn from the chute 23. As the slider 91 moves out of the chute 23, correspondingly, the ejection ring 9 moves forward toward the first retaining ring 6. In this way, the ejection ring 9 can simultaneously push away from the first retaining ring 6 and press part of the rolling elements 8 into the limit ring groove 111.

[0052] A retaining mechanism is provided between the ejection ring 9 and the mounting seat 2 to keep the handheld portion 12 in a horizontal state after the rotating portion 11 is inserted into the through groove 21. Refer to Figure 6 As shown, the retaining mechanism includes two cut surfaces 93 provided in parallel on the outer wall of the ejection ring 9, and a moving block 4 elastically slidably provided on the mounting seat 2 and capable of approaching or departing from the ejection ring 9. The side of the moving block 4 close to the cut surface 93 is a plane that fits the cut surface 93. An elastic member 5 is provided between the mounting seat 2 and the moving block 4 to elastically press the moving block 4 against the cut surface 93. The elastic member 5 is a spring or a tension spring. In this embodiment, it is a spring. The end of the spring away from the moving block 4 elastically abuts against a baffle 3 in the mounting seat 2. A control portion is provided between the mounting seat 2 and the moving block 4 to control the moving direction of the moving block 4 and limit its moving stroke. The control portion includes a waist-shaped groove 41 provided on the moving block 4 along its moving direction, an internally threaded post 24 protruding from the mounting seat 2, a through hole 31 provided on the baffle 3, and a locking screw that sequentially passes through the through hole 31, the waist-shaped groove 41 and then mates with the internally threaded post 24. The above structure realizes multiple functions such as the installation of the baffle 3 on the mounting seat 2, covering the quick assembly mechanism, providing guiding sliding for the moving block 4, and controlling the moving stroke.

[0053] A through hole 32 concentric with the rotating portion 11 is provided on the baffle 3 for the transmission rod to pass through. Two operation holes 33 are symmetrically provided on the baffle 3 with the through hole 32 as the center. An operator can insert a tool into the operation holes 33 to press the first retaining ring 6 toward the second retaining ring 7. The ejection ring 9 is simultaneously pushed back by the extrusion of the first retaining ring 6, and the rolling elements 8 are all re-entered into the groove 10 due to the arc transition at the bottom of the groove 10 and are disengaged from the limit ring groove 111. The handle 1 can be pulled out from the mounting seat 2.

[0054] Installation process of the handle 1: Hold the handle 1 with the holding part 12 in a horizontal state and insert it into the slot, then rotate it by a certain angle (less than 90°). At this time, the slider 91 of the jacking ring 9 completely slides out of the chute 23, and then rotate it to the horizontal state of the handle 1. Then, under the action of the moving block 4, the handle 1 can be kept in a horizontal state.

[0055] Dismantling process of the handle 1: Insert a thin rod into the operation hole 33 with one hand and slowly rotate the handle 1 with the other hand. When the slider 91 rotates to face the chute 23, the thin rod changes from immovable to movable in the direction of the handle 1. At this time, the first retaining ring 6 and the jacking ring 9 are simultaneously pushed towards the chute 23. During the pushing process, the rolling body 8 gradually disengages from the limiting ring groove 111. When the thin rod is inserted until it becomes immovable, the rolling body 8 completely disengages from the limiting ring groove 111. At this time, directly pull out the handle 1.

Claims

1. An externally mounted lock body with quick handle installation, comprising a mounting base (2) and a handle (1). The handle (1) includes a rotating part (11) and a hand-held part (12) that extends vertically to one side at one end of the rotating part (11), characterized in that, One end of the rotating part (11) far away from the handheld part (12) is inserted and matched with the mounting seat (2). A quick-installation mechanism is arranged in the mounting seat (2) which can realize the axial limit of the rotating part (11) relative to the mounting seat (2) by rotating a certain angle as the rotating part (11) is inserted to a specified position. The quick-installation mechanism includes a limiting body, a limiting ring groove (111) recessed on the outer ring wall of the rotating part (11) far away from the handheld part (12), a holding part for driving the limiting body to float outside the limiting ring groove (111), and a jacking part that moves along the axial direction of the rotating part away from the handheld part (12) as the rotating part rotates. As the jacking part jacks in, the holding part is pushed open and the limiting body is pushed into the limiting ring groove (111) partially. The limiting body is a rolling body (8), and there is at least one rolling body (8) distributed circumferentially around the rotating part (11). The holding part includes a first holding ring (6) and a second holding ring (7) arranged separately. A groove (10) for accommodating a part of the rolling body (8) is arranged on one side of the first holding ring (6) opposite to the second holding ring (7). As the distance between the first holding ring (6) and the second holding ring (7) changes, the rolling body (8) can be completely accommodated between the two grooves (10) or partially protrude into the limiting ring groove (111). A matching structure is arranged among the mounting seat (2), the quick-installation mechanism and the handle (1). The matching mechanism includes a synchronous mechanism for driving the rotating part (11), the first holding ring (6) and the jacking ring (9) to rotate synchronously and a jacking mechanism for driving the jacking ring (9) to jack in along the axial direction of the rotating part (11) during rotation between the jacking ring (9) and the mounting seat (2).

2. The external lock body with quick handle installation according to claim 1, characterized in that: The bottom and side wall of the groove (10) are in an arc transition that fits the rolling body (8). The jacking part is a jacking ring (9) sleeved outside the holding part. An arc groove (94) for accommodating a part of the rolling body (8) is arranged at one end of the inner ring wall of the jacking ring (9) far away from the handheld part (12).

3. The external lock body with quick handle installation according to claim 2, characterized in that: A through groove (21) for the handheld part (12) to insert is arranged on the mounting seat (2). An accommodating ring (22) for accommodating the jacking ring (9) extends with the through groove (21) as the center in the mounting seat (2). A baffle (3) for limiting the maximum movement stroke of the first holding ring (6) is detachably arranged at one end of the mounting seat (2) far away from the handle (1).

4. An external lock body with quick installation of a handle according to claim 1, characterized in that: The synchronous rotation mechanism includes a first slot (112) recessed at one end of the rotating part (11) far away from the handheld part (12) and a first insert block (61) protruding on the inner ring wall of the first holding ring (6) that can be inserted into the first slot (112). A second insert block (62) protrudes on the outer wall of the first holding ring (6). A second slot (92) for the second insert block (62) to insert is arranged on one side of the jacking ring (9) facing the first holding ring (6).

5. The external lock body with quick handle installation according to claim 1, characterized in that: The jacking mechanism includes a slider (91) protruding from one end of the jacking ring (9) close to the handheld part (12), a fitting surface (232) provided on the side of the mounting base (2) away from the handheld part (12), and a chute (23) that is circumferentially recessed with the through slot (21) as the center on the fitting surface (232) for the slider (91) to be inserted and slide. A guiding mechanism is provided between the slider (91) and the chute (23) to facilitate the slider (91) to escape from the chute (23) and fit with the fitting surface (232). The jacking distance of the jacking ring (9) is the depth of the jacking ring (9) inserted into the chute (23).

6. The external lock body with quick handle installation according to claim 5, characterized in that: The guiding mechanism includes first guiding inclined surfaces (911) provided on both sides of the slider (91) and second guiding inclined surfaces (231) provided on both sides of the chute (23) and cooperating with the first guiding inclined surfaces (911).

7. An external lock body with quick handle installation according to claim 5, characterized in that: The chutes (23) are axially spaced apart around the rotating part (11) in at least one group. Each group has at least one chute. The groups are concentric but have different circles, and the angle difference between each group is greater than the rotation stroke of the rotating part (11) after installation.

8. The external lock body with quick handle installation according to claim 3, characterized in that: A holding mechanism is provided between the jacking ring (9) and the mounting base (2) to keep the handheld part (12) in a horizontal state after the rotating part (11) is inserted into the through slot (21). The holding mechanism includes two cutting surfaces (93) arranged in parallel on the outer wall of the jacking ring (9), and a moving block (4) that is elastically slidably arranged on the mounting base (2) and can approach or move away from the jacking ring (9). The side of the moving block (4) close to the cutting surface (93) is a plane that fits with the cutting surface (93). An elastic member (5) is provided between the mounting base (2) and the moving block (4) to drive the moving block (4) to elastically press against the cutting surface (93).

Images