Lock body

Abstract

The utility model provides a lock body, and belongs to the technical field of locks. The lock body structure solves the problem that a lock body structure capable of switching and using a double-fast double-live lock body or a mechanical lock body is lacked at present. A lock body comprises a rotating shaft, a first shifting piece, a second shifting piece and a third shifting piece, the rotating shaft is coaxially arranged with a handle, the first shifting piece, the second shifting piece and the third shifting piece are sleeved on the rotating shaft and coaxially arranged with the rotating shaft, when the handle is rotated, the rotating shaft can drive the first shifting piece and the third shifting piece to rotate, and the second shifting piece is detachably and fixedly connected with the first shifting piece through a fastener. When a fastener is installed, the lever handle is rotated, the first shifting piece drives the second shifting piece to rotate, the second shifting piece drives the rotating plate to rotate through the first plug pin, the rotating plate drives the rack to move horizontally through the second plug pin, and at the moment, a double-fast double-movable lock body is formed. After the fastening piece is detached, the lever handle is rotated, only the latch bolt can be driven to move, the second shifting piece and the rotating plate are fixed relative to the rotating shaft so that the main spring bolt can be kept fixed, and at the moment, a mechanical lock body is formed; according to the utility model, the switching use of the double-quick double-live lock body and the mechanical lock body can be quickly completed by disassembling and assembling the screws.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology and relates to a lock body. Background Technology

[0002] The most common lock body structures on the market are double-fast double-action lock bodies and mechanical lock bodies;

[0003] Double-fast and double-active lock body: "Double-fast" means that both the inner and outer handles can be lifted upwards to quickly lock the door and pressed downwards to quickly open the door; "double-active" means that both the inner and outer handles can be pressed downwards to open the door. For example, in an emergency, it can open or lock the door more quickly, improving efficiency.

[0004] Mechanical lock body: It mainly relies on mechanical structure to achieve basic locking and unlocking functions. It usually completes the unlocking action by rotating a square shaft (partially rotating the lock cylinder) through an external motor, which is relatively simple and direct.

[0005] Double-fast, double-active lock bodies offer greater convenience, while mechanical lock bodies maintain the simplicity and reliability of traditional locks. Currently, there is a lack of lock body structures that can combine the functions of both double-fast, double-active lock bodies and mechanical lock bodies, and allow users to selectively switch between the two based on their needs. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems with existing lock body structures by proposing a lock body structure that combines the functions of a double-fast double-active lock body and a mechanical lock body, and allows users to selectively switch between using either the double-fast double-active lock body or the mechanical lock body according to their needs.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A lock body includes a lock box and a main lock tongue, a slanted tongue, a rack, and a gear 1 coaxially arranged with the lock cylinder, all disposed on the lock box. A gear pair is provided between the gear 1 and the rack. When the lock cylinder rotates, it can drive the gear 1 to drive the gear, and drive the rack to translate through the gear pair. A transmission component is provided between the rack and the main lock tongue. When the rack translates, it can drive the main lock tongue to translate through the transmission component.

[0009] The lock body is characterized in that it further includes a rotating shaft coaxially arranged with the handle, and three paddles (a first, a second, and a third) sleeved on the rotating shaft and coaxially arranged with the rotating shaft. When the handle is rotated, the rotating shaft can drive paddles (a first and a third) to rotate. Paddle (a second) is detachably fixed to paddle (a first) by a fastener. Paddle (a third) is provided with a protrusion. When paddle (a third) rotates, the protrusion can push the latch bolt to move horizontally.

[0010] The lock box is equipped with a rotating plate, which has a guide groove 1 and a guide groove 2. A pin 1 is fixed on the second lever, and a pin 2 is fixed on the rack. The first pin is inserted into the first guide groove, and the second pin is inserted into the second guide groove. When the fastener is installed, the handle is rotated, and the first lever drives the second lever to rotate. The second lever drives the rotating plate to rotate through the first pin, and the rotating plate drives the rack to move horizontally through the second pin. After the fastener is removed, the handle is rotated, and the second lever and the rotating plate remain stationary relative to the pivot, so that the main lock tongue remains stationary.

[0011] In one of the lock bodies described above, the fastener is a screw.

[0012] In the aforementioned lock body, the gear pair includes gear two and gear three rotatably disposed within the lock housing. Gear two is a double-row gear with a coaxial gear ring one and gear ring two. Gear one meshes with gear ring one, gear ring two meshes with gear three, and gear three meshes with the aforementioned rack. When the lock cylinder rotates, it can drive gear one to drive the transmission, gear one drives gear two to rotate, gear two drives gear three to rotate, and gear three drives the rack to translate.

[0013] In one of the lock bodies described above, the transmission assembly includes a gear four rotatably disposed within the lock housing and a push plate coaxially disposed with the gear four. The gear four meshes with a rack. An arc groove is provided on the push plate. A protrusion is fixed on the gear four and inserted into the arc groove. A locking block is also fixed on the push plate. A locking groove is provided on the main lock tongue and the locking block is inserted into the locking groove. When the rack moves horizontally, it can drive the gear four to rotate. The gear four drives the push plate to rotate through the protrusion. The push plate pushes the main lock tongue to move horizontally through the locking block.

[0014] In one of the lock bodies described above, when the rack moves backward to reset, it drives the fourth gear to synchronously reverse to reset. The protrusion rotates along the arc groove. During the part of the rack's reverse reset stroke, the push plate can remain stationary relative to the fourth gear so that the main lock tongue remains stationary, forming a false position.

[0015] In one type of lock body described above, the rotating plate is rotatably mounted on the lock box via a central shaft. The center distance between the central shaft and the first pin is set as L1, and the center distance between the central shaft and the second pin is set as L2, where L2 > L1. According to the principle of motion, the farther an object is from the center of a circle, the greater the distance it travels when moving at the same angle. The purpose of this design is to amplify the rack displacement and overcome the spatial limitations.

[0016] In one of the lock bodies described above, a torsion spring is also provided between the lock box and the latch, which is used to push the latch out.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the fastener is installed, rotating the handle causes the first lever to rotate the second lever, which in turn rotates the rotating plate via the first pin. The rotating plate then moves the rack via the second pin, resulting in a double-fast, double-active lock body. After removing the fastener, rotating the handle only moves the latch bolt. The second lever and the rotating plate remain stationary relative to the pivot, keeping the main bolt stationary. This is a mechanical lock body. This invention allows for quick switching between a double-fast, double-active lock body and a mechanical lock body by simply removing and installing screws.

[0019] 2. There is a play between gear four and the push plate. When the rack returns to its original position, it drives gear four to rotate. Within a reasonable travel range, gear four can keep the push plate stationary and the main bolt stationary. This play design in the lock body means that when the door is slightly ajar, the main bolt does not work; only the latch bolt is active. At this time, the door can be opened directly through the handle without the need for complex operations such as keys or fingerprints. This is suitable for short-term entry and exit (such as picking up packages or taking out the trash). Its purpose is to provide basic security while avoiding the inconvenience of frequent use of the main bolt. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the transmission after the lock body of this utility model is locked;

[0021] Figure 2 This is a schematic diagram of the transmission after the lock body of this utility model is unlocked;

[0022] Figure 3 This is a schematic diagram of the transmission for resetting the oblique tongue inside the lock body of this utility model;

[0023] Figure 4 This is a schematic diagram of the transmission after the rotating lock cylinder of this utility model is locked;

[0024] Figure 5 This is a schematic diagram of the transmission after the rotating lock cylinder of this utility model is unlocked;

[0025] Figure 6 This is a schematic diagram of the transmission of the lock cylinder after the latch resets;

[0026] Figure 7 This is a schematic diagram of the transmission after the rotating handle locks the device according to this utility model;

[0027] Figure 8 This is a schematic diagram of the transmission after the handle is rotated to unlock the device according to this utility model;

[0028] Figure 9 This is a schematic diagram of the main locking tongue and push plate of this utility model;

[0029] Figure 10 This is a schematic diagram of the push plate and gear four of this utility model;

[0030] Figure 11 This is a schematic diagram of the structure of the rotating plate of this utility model.

[0031] In the diagram, 101 is the lock box; 102 is the main bolt; 103 is the slanted bolt; 104 is the rack; 105 is the first gear; 106 is the pivot; 107 is the first lever; 108 is the second lever; 109 is the third lever; 110 is the fastener; 111 is the rotating plate; 112 is the first guide groove; 113 is the second guide groove; 114 is the first pin; 115 is the second pin; 116 is the protrusion; 117 is the second gear; 118 is the third gear; 119 is the first gear ring; 120 is the second gear ring; 121 is the fourth gear; 122 is the push plate; 123 is the arc groove; 124 is the protrusion; 125 is the locking block; 126 is the locking groove; 127 is the central shaft; and 128 is the torsion spring. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] like Figures 1 to 3 As shown, the lock body of this utility model includes a lock box 101 and a main lock tongue 102, a slanted tongue 103, a rack 104, and a gear 105 coaxially arranged with the lock cylinder, all disposed on the lock box 101. A gear pair is provided between the gear 105 and the rack 104. When the lock cylinder rotates, it can drive the gear 105 to drive the rack 104 to translate through the gear pair. A transmission component is provided between the rack 104 and the main lock tongue 102. When the rack 104 translates, it can drive the main lock tongue 102 to translate through the transmission component.

[0034] like Figure 7 and Figure 8 As shown, the lock body also includes a rotating shaft 106 coaxially arranged with the handle, and three paddles 107, 108, and 109 sleeved on the rotating shaft 106 and coaxially arranged with the rotating shaft 106. When the handle is rotated, the rotating shaft 106 can drive the paddles 107 and 109 to rotate. The paddle 108 is detachably fixed to the paddle 107 by a fastener 110. The paddle 109 is provided with a protrusion 116. When the paddle 109 rotates, the protrusion 116 can push the latch 103 to move horizontally. A torsion spring 128 is also provided between the lock box 101 and the latch 103. The torsion spring 128 is used to push the latch 103 out.

[0035] like Figure 11As shown, a rotating plate 111 is rotatably mounted inside the lock box 101. The rotating plate 111 has a first guide groove 112 and a second guide groove 113. A first pin 114 is fixed to a second lever 108, and a second pin 115 is fixed to a rack 104. The first pin 114 is inserted into the first guide groove 112, and the second pin 115 is inserted into the second guide groove 113. When the fastener 110 is installed, rotating the handle causes the first lever 107 to rotate the second lever 108. The second lever 108, through the first pin 114, drives the rotating plate 111 to rotate, and the rotating plate 111, through the second pin 115, drives the rack 104 to translate. After removing the fastener 110, rotating the handle causes the second lever 108 and the rotating plate 111 to remain stationary relative to the pivot 106, thus keeping the main locking tongue 102 stationary. The fastener 110 is a screw.

[0036] like Figure 11 As shown, the rotating plate 111 is rotatably mounted on the lock box 101 via a central shaft 127. The center distance between the central shaft 127 and the first pin 114 is set as L1, and the center distance between the central shaft 127 and the second pin 115 is set as L2, where L2 > L1. According to the principle of motion, the farther an object is from the center of a circle, the greater the distance it travels when moving at the same angle. The purpose of this design is to amplify the displacement of the rack 104 and overcome the spatial limitations.

[0037] like Figures 4 to 6 As shown, the gear pair includes a second gear 117 and a third gear 118 rotatably disposed within the lock box 101. The second gear 117 is a double-row gear with a coaxial gear ring 119 and a gear ring 120. The first gear 105 meshes with the gear ring 119, the gear ring 120 meshes with the gear ring 118, and the gear ring 118 meshes with the rack 104. When the lock cylinder rotates, it can drive the first gear 105 to rotate, the first gear 105 drives the second gear 117 to rotate, the second gear 117 drives the third gear 118 to rotate, and the third gear 118 drives the rack 104 to translate.

[0038] like Figure 9 As shown, the transmission assembly includes a gear 121 rotatably disposed within the lock housing 101 and a push plate 122 coaxially disposed with the gear 121. The gear 121 meshes with a rack 104. An arc groove 123 is provided on the push plate 122. A protrusion 124 is fixedly disposed on the gear 121 and inserted into the arc groove 123. A locking block 125 is also fixedly disposed on the push plate 122. A locking groove 126 is provided on the main lock tongue 102 and the locking block 125 is inserted into the locking groove 126. When the rack 104 translates, it can drive the gear 121 to rotate. The gear 121 drives the push plate 122 to rotate through the protrusion 124. The push plate 122 pushes the main lock tongue 102 to translate through the locking block 125.

[0039] like Figure 10As shown, when the rack 104 reverses and resets, it drives the gear 4 121 to synchronously reverse and reset. The protrusion 124 rotates along the arc groove 123. During the partial stroke of the rack 104 reversing and resetting, the push plate 122 can remain stationary relative to the gear 4 121 so that the main locking tongue 102 remains stationary and forms a false position.

[0040] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A lock body, comprising a lock box (101) and a main lock tongue (102), a slant tongue (103), a rack (104), and a gear (105) coaxially disposed on the lock box (101). A gear pair is provided between the gear (105) and the rack (104). When the lock cylinder rotates, it can drive the gear (105) to drive the rack (104) to translate through the gear pair. A transmission component is provided between the rack (104) and the main lock tongue (102). When the rack (104) translates, it can drive the main lock tongue (102) to translate through the transmission component. Its features are, The lock body also includes a pivot (106) coaxially arranged with the handle, and paddles 1 (107), 2 (108), and 3 (109) sleeved on the pivot (106) and coaxially arranged with the pivot (106). When the handle is rotated, the pivot (106) can drive paddles 1 (107) and 3 (109) to rotate. Paddle 2 (108) is detachably fixed to paddle 1 (107) by a fastener (110). Paddle 3 (109) is provided with a protrusion (116). When paddle 3 (109) rotates, the protrusion (116) can push the tongue (103) to move horizontally. The lock box (101) is rotatably equipped with a rotating plate (111). The rotating plate (111) has a guide groove 1 (112) and a guide groove 2 (113). A pin 1 (114) is fixed on the lever 2 (108), and a pin 2 (115) is fixed on the rack (104). Pin 1 (114) is inserted into guide groove 1 (112), and pin 2 (115) is inserted into guide groove 2 (113). When the fastener (110) is installed... Turn the handle, and the first lever (107) drives the second lever (108) to rotate. The second lever (108) drives the rotating plate (111) to rotate through the first pin (114). The rotating plate (111) drives the rack (104) to move through the second pin (115). After removing the fastener (110), turn the handle, and the second lever (108) and the rotating plate (111) remain stationary relative to the pivot (106) so that the main locking tongue (102) remains stationary.

2. A lock body according to claim 1, characterized in that, The fastener (110) is a screw.

3. A lock body according to claim 1, characterized in that, The gear pair includes a second gear (117) and a third gear (118) rotatably disposed in the lock box (101). The second gear (117) is a double-row gear with a coaxial gear ring (119) and a gear ring (120). The first gear (105) meshes with the first gear ring (119), the second gear ring (120) meshes with the third gear (118), and the third gear (118) meshes with the rack (104). When the lock cylinder rotates, it can drive the first gear (105) to drive the first gear (105), the first gear (105) drives the second gear (117) to rotate, the second gear (117) drives the third gear (118) to rotate, and the third gear (118) drives the rack (104) to translate.

4. A lock body according to claim 3, characterized in that, The transmission assembly includes a gear four (121) rotatably disposed within the lock box (101) and a push plate (122) coaxially disposed with the gear four (121). The gear four (121) meshes with a rack (104). An arc groove (123) is provided on the push plate (122). A protrusion (124) is fixed on the gear four (121). The protrusion (124) is inserted into the arc groove (123). (122) is also fixed with a locking block (125), and the main locking tongue (102) is provided with a locking groove (126). The locking block (125) is inserted into the locking groove (126). When the rack (104) moves, it can drive the gear four (121) to rotate. The gear four (121) drives the push plate (122) to rotate through the protrusion (124). The push plate (122) pushes the main locking tongue (102) to move through the locking block (125).

5. A lock body according to claim 4, characterized in that, When the rack (104) is reversed and reset, it drives the fourth gear (121) to be reversed and reset synchronously. The protrusion (124) rotates along the arc groove (123). During the part of the reverse reset stroke of the rack (104), the push plate (122) can remain stationary relative to the fourth gear (121) so that the main locking tongue (102) remains stationary and forms a false position.

6. A lock body according to claim 1, characterized in that, The rotating plate (111) is rotatably mounted on the lock box (101) via a central shaft (127). The center distance between the central shaft (127) and the first pin (114) is set as L1, and the center distance between the central shaft (127) and the second pin (115) is set as L2, and L2 > L1.

7. A lock body according to claim 1, characterized in that, A torsion spring (128) is also provided between the lock box (101) and the latch (103), which is used to push out the latch (103).

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