CN209855398U

CN209855398U - Compact type lock body special for hotel

Info

Publication number: CN209855398U
Application number: CN201822020654.7U
Authority: CN
Inventors: 韦超毅
Original assignee: Zhongshan Li Feng Security Technology Co Ltd
Current assignee: Zhongshan Li Feng Security Technology Co Ltd
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2019-12-27
Anticipated expiration: 2028-12-03

Abstract

The utility model discloses a special lock body of compact hotel, including X wood tooth screw, trim, oblique tongue fixed plate, oblique tongue reset spring, lock box, vice pulling piece, main pulling piece, separation and reunion piece, main reset spring, machinery key switch casting die, switch casting die spring, lower pulling piece, machinery key pulling piece, twist the hand pulling piece, anti-spring bolt, machinery key switch, switch support, oblique tongue switch screening glass, anti-lock switch, P connecting wire, screw, lock lid, anti-lock switch screening glass, oblique tongue switch, motor drive subassembly, L driving piece, pin, copper sheathing and pin reset spring. The utility model discloses beneficial effect: the head of the reverse spring bolt of the utility model is arranged in the reverse lock hole of the lock box, thereby realizing that the twisting hand pulling piece twists a certain angle and simultaneously drives the reverse spring bolt to extend out of the moving rail of the retracted lock box; when the acting force of the pin vertical to the axis of the pin disappears, the clutch piece can not drive the main pulling piece to rotate under the force of rotating the axis of the clutch piece, thereby achieving the aim of locking the door.

Description

Compact type lock body special for hotel

Technical Field

The utility model belongs to the technical field of the lock body technique and specifically relates to a special lock body of compact hotel.

Background

In recent years, hotel security accidents frequently occur, particularly strangers pretend to be couriers or hotel waiters to knock doors to open the doors of customers, the current hotel theft prevention is generally two-layer locks, but the lock handles are required to be manually twisted, the conditions of force application direction inequality frequently occur in the process of twisting the lock handles, the lock cylinders are blocked, the efficiency of locking the doors is low, and the guests find that the lock cores cannot be locked in time at the moment of opening the doors, so that the matters that bad people forcibly enter the doors frequently occur.

Therefore, a compact lock body special for hotels needs to be provided for the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art and providing a compact type lock body special for hotels.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a compact type hotel special lock body comprises an X-shaped wood screw, a decoration strip, an oblique bolt fixing plate, an oblique bolt reset spring, a lock box, an auxiliary pulling part, a main pulling part, a clutch part, a main reset spring, a mechanical key switch pressing part, a switch pressing part spring, a lower pulling part, a mechanical key pulling part, a twisting hand pulling part, an inverse lock bolt, a mechanical key switch, a switch bracket, an oblique bolt switch protection sheet, an inverse lock switch, a P connecting line, a screw, a lock cover, an inverse lock switch protection sheet, an oblique bolt switch, a motor driving component, an L-shaped driving part, a pin, a copper sleeve and a pin reset spring, wherein the oblique bolt, the oblique bolt fixing plate, the oblique bolt reset spring, the lock box, the auxiliary pulling part, the main pulling part, the clutch part and the main reset spring are all arranged on the lock box, the mechanical key switch pressing part, the lower pulling part, the mechanical key pulling part, the twisting hand pulling part, the inverse lock bolt, Switch bracket, -latch switch screening glass, anti-lock switch, P connecting wire, screw, locking closure, anti-lock switch screening glass, latch switch, motor drive subassembly and L shape driving piece from top to bottom install in proper order between lock box and locking closure, the trim is fixed in through X wood teeth screw lock box.

Preferably, the lock box is provided with a stud-and a guide groove-, and the mechanical key switch pressing piece is arranged in the stud-and the guide groove-of the lock box.

Preferably, one end of the switch pressing piece spring is arranged on the stud, and the other end of the switch pressing piece spring is arranged on the mechanical key switch pressing piece.

Preferably, the lower pulling part is provided with a boss-, the axis of the lower pulling part is provided with a square through hole-, the mechanical spoon pulling part is provided with a pulling head-, a step-and a pulling head-, and the axis of the mechanical spoon pulling part is provided with a rectangular through hole-.

Preferably, the upper surface of the hand-twisting pulling piece is provided with a first notch, a second notch and a pulling head, the axis of the hand-twisting pulling piece is provided with a square through hole, the axis of the lower pulling piece is aligned with the axis of the mechanical key pulling piece and the axis of the hand-twisting pulling piece, and the boss is aligned with the first notch on the hand-twisting pulling piece and is assembled in a limiting way.

Preferably, a guide limit groove and a U-shaped groove are arranged on the reverse lock tongue, a cylinder is arranged at the head of the twisting pulling piece and aligned to be installed in the guide limit groove, and the axis of the twisting pulling piece is aligned to the axis of the U-shaped groove on the reverse lock tongue.

Preferably, the head of the anti-lock tongue is arranged in the anti-lock hole of the lock box, so that the anti-lock tongue is driven to extend out of and retract into the moving rail of the lock box when the twisting hand pulling piece is twisted for a certain angle.

Preferably, the pin is arranged in the main pulling part of the main pulling part, and the copper sleeve and the pin return spring are sleeved outside the pin.

The utility model discloses beneficial effect: the head of the reverse spring bolt of the utility model is arranged in the reverse lock hole of the lock box, thereby realizing that the twisting hand pulling piece twists a certain angle and simultaneously drives the reverse spring bolt to extend out of the moving rail of the retracted lock box; when the acting force of the pin vertical to the axis of the pin disappears, the pin extends outwards due to the elastic force of the pin reset spring, at the moment, the pin is separated from the clutch piece, and the clutch piece cannot drive the main pulling piece to rotate under the force of rotating the axis of the clutch piece, so that the aim of locking the door is fulfilled.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a block diagram of the lock case of the present invention;

FIG. 3 is a view of the structure of the reverse lock tongue of the present invention;

FIG. 4 is a structural view of the main pulling part of the present invention;

FIG. 5 is a left-side exploded view of the main pulling element of the present invention;

FIG. 6 is an exploded view of the main pulling element of the present invention in the right direction;

fig. 7 is an inward opening schematic view of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in figure 1 and combined with figures 2 to 7, the compact type lock body special for hotels comprises a 4X20 wood screw 1, a decoration strip 2, an oblique tongue 3, an oblique tongue fixing plate 4, an oblique tongue return spring 5, a lock box 6, an auxiliary pulling part 7, a main pulling part 8, a clutch part 9, a 1 main return spring 10, a 1 mechanical key switch pressing part 11, a switch pressing part spring 12, a lower pulling part 13, a mechanical key pulling part 14, a twisting hand pulling part 15, an anti-locking tongue 16, a mechanical key switch 17, a switch bracket 18, an oblique tongue switch protection plate 19, an anti-locking switch 20, an 8P connecting wire 21, a screw 22, a lock cover 23, an anti-locking switch protection plate 24, an oblique tongue switch 25, a 2 motor driving component 26, an L-shaped driving part 27, a pin 28, a copper sleeve 29 and a tongue return spring 30, wherein the oblique tongue fixing plate 4, the oblique tongue return spring 5, the lock box 6, the auxiliary pulling part 7, the main pulling part 8, the oblique tongue return spring 6, the clutch piece 9 and the main reset spring 10 are all arranged on the lock box 6, the mechanical key switch pressing piece 11, the switch pressing piece spring 12, the lower pulling piece 13, the mechanical key pulling piece 14, the twisting hand pulling piece 15, the reverse lock tongue 16, the mechanical key switch 17, the switch bracket 18, the latch switch protection sheet 19, the reverse lock switch 20, the 8P connecting line 21, the screw 22, the lock cover 23, the reverse lock switch protection sheet 24, the latch switch 25, the motor driving component 26 and the L-shaped driving piece 27 are sequentially arranged between the lock box 6 and the lock cover 23 from top to bottom, and the decoration strip 2 is fixed on the lock box 6 through a 4X20 wood tooth screw 1.

Furthermore, a stud 6-1 and a guide groove 6-2 are arranged on the lock box 6, and the mechanical key switch pressing piece 11 is arranged in the stud 6-1 and the guide groove 6-2 of the lock box 6.

Furthermore, one end of the switch pressing piece spring 12 is arranged on the stud 6-1, and the other end of the switch pressing piece spring 12 is arranged on the mechanical key switch pressing piece 11.

Further, the lower pulling part 13 is provided with a boss 13-1, the axis of the lower pulling part 13 is provided with a first square through hole 13-2, the mechanical spoon pulling part 14 is provided with a second pulling head 14-1, a step 14-3 and a third pulling head 14-4, and the axis of the mechanical spoon pulling part 14 is provided with a rectangular through hole 14-2.

Furthermore, a first notch 15-1, a second notch 15-3 and a fourth plug 15-5 are arranged on the upper surface of the hand pulling member 15, a second square through hole 15-4 is arranged on the axis of the hand pulling member 15, the axis of the lower pulling member 13 is aligned with the axis of the mechanical spoon pulling member 14 and the axis of the hand pulling member 15, and the boss 13-1 is aligned with the first notch 15-1 on the hand pulling member 15 for limiting assembly.

Furthermore, a guide limiting groove 16-1 and a U-shaped groove 16-2 are arranged on the reverse lock tongue 16, a cylinder 15-2 is arranged at the head of the twisting pulling piece 15 and aligned to be arranged in the guide limiting groove 16-1, and the axis of the twisting pulling piece 15 is aligned to the axis of the U-shaped groove 16-2 on the reverse lock tongue 16.

Furthermore, the head of the anti-lock tongue 16 is arranged in the anti-lock hole 6-5 of the lock box, so that the anti-lock tongue 16 is driven to extend out of the moving rail of the lock box 6 and retract while the hand-operated pulling piece 15 is twisted for a certain angle.

Further, the pin 28 is disposed inside the main pulling part 8, and the copper sleeve 29 and the pin return spring 30 are both sleeved outside the pin 28.

Assembling: a mechanical key switch pressing piece 11 is assembled, as shown in figure 2, a stud 6-1 and a guide groove 6-2 are arranged on a lock box 6, the mechanical key switch pressing piece 11 is arranged in the stud 6-1 and the guide groove 6-2 of the lock box 6 as shown in figure 1, one end of a switch pressing piece spring 12 is arranged on the stud 6-1, the other end of the switch pressing piece spring is arranged on the mechanical key switch pressing piece 11, the mechanical key switch pressing piece 11 can only move along the direction of the guide groove 6-2, and due to the spring action, the mechanical key switch pressing piece 11 is always closed towards the direction of one end of the stud 6-1 when no external force is applied.

Assembling the anti-lock tongue 16 and related accessories, as shown in figure 3, the lower pulling piece 13 is provided with a boss 13-1, the axis is provided with a first square through hole 13-2, the mechanical spoon pulling piece 14 is provided with a second pulling head 14-1, a step 14-3 and a third pulling head 14-4, the axis is provided with a rectangular through hole 14-2, the upper surface of the wrench pulling piece 15 is provided with a first notch 15-1, a second notch 15-3 and a fourth pulling head 15-5, the axis is provided with a second square through hole 15-4, the axis of the lower pulling piece 13 is aligned with the axis of the mechanical spoon pulling piece 14 and the axis of the wrench pulling piece 15, the boss 13-1 is aligned with the first notch 15-1 on the wrench pulling piece 15 for limit assembly, the lower pulling piece 13 and the wrench pulling piece 15 are limited to rotate coaxially and synchronously, the mechanical spoon pulling piece 14 is clamped between the two, because the step 14-3 has a small angle, the angle of the second gap 15-3 is large, so the mechanical spoon pulling piece 14 can rotate a certain angle along the axis. The upper surface of the anti-lock tongue 16 is provided with a guide limiting groove 16-1 and a U-shaped groove 16-2, the head of the twisting pulling piece 15 is provided with a cylinder 15-1 which is aligned and arranged in the guide limiting groove 16-1, the axis of the twisting pulling piece 15 is aligned with the axis of the U-shaped groove 16-2 on the anti-lock tongue 16, the downward direction of the lower pulling piece 13 is shown in figures 1 and 2, the lower pulling piece and the lower pulling piece are all arranged in an anti-lock hole 6-3 of the lock box 6 together, and the head of the anti-lock tongue is arranged in an anti-lock hole 6-5 of the lock box, so that the twisting pulling piece 15 can twist a certain angle and drive the anti-lock tongue 16 to extend out and retract into.

The operating principle of the main pulling member 8 is that as shown in fig. 5, the copper bush 29 is tightly matched with the main pulling member 8 to block and install the pin 28 and the pin return spring 30 on the main pulling member 8, because of the elastic force of the pin return spring 30, the pin 28 is always stressed outwards and extends out, when the end surface of the pin 28 is acted by the force vertical to the axis (namely the driving force of the motor), the pin 28 retracts towards the axis of the main pulling member 8, at the same time, the pin 28 connects the main pulling member 8 and the clutch member 9 into a whole, as shown in the state of b, when the clutch member 9 is acted by the force rotating the axis (namely the door opening pressing handle), the main pulling member 8 is driven to rotate together and transmit through the parts in the lock body, when the acting force vertical to the axis of the pin 28 disappears, the pin 28 extends outwards because of the elastic force of the pin return spring 30, at the same time, the pin 28 is separated from the clutch member 9, and the clutch member 9 is acted by the force rotating the axis of the rotating again, the main pulling member .

The principle of the left-right direction replacement of the lock body is that the lock body is opened left and right according to the opening direction of a door, as shown in figures 6 and 7, the left and right direction of the lock body is reversed, namely, the lock body is formed by exchanging the positions of an auxiliary pulling part 7, a main pulling part 8 and a clutch part 9, three direction bosses 7-1 are arranged on the auxiliary pulling part 7, grooves 8-1 are formed in the main pulling part 8 corresponding to three directions, the upper surface and the lower surface of the symmetry have the three characteristics, the boss 7-1 and the groove 8-1 are correspondingly assembled, the coaxial synchronous rotation of the auxiliary pulling part 7 and the main pulling part 8 is limited, the clutch part 9 and the main pulling part are in a mutual idle running state under normal conditions, the boss 7-1 and the groove 8-1 are connected into a whole body only when being driven by a motor, so that the lock body is assembled according to the position of figure 6 when the left opening.

The main pulling part 8 and the related accessories are assembled, as shown in fig. 1, fig. 2 and fig. 6, the auxiliary pulling part 7, the main pulling part 8 and the clutch part 9 are sequentially arranged in the 6-8 holes of the lock box 6, the illustration figure 1 is a left opening direction, the main return spring 10 is sleeved on the periphery of the post 6-9, one leg of the spring is pressed on the side wall of the lock box 8, the other leg is arranged below the boss 8-3 of the main pulling part 8, and after the pulling part 8 rotates clockwise around the own axis under stress, the reverse force of the main return spring 10 is always generated, so that the pulling part 8 can be reset to the initial position when the external force disappears.

The motor driving component and related accessories are assembled, as shown in fig. 1, a mechanical key switch 17, a latch switch 25, a back locking switch 20, a motor driving component 26 and an 8P connecting line 21 are welded, then the motor driving component, a latch switch protection sheet 19 and a back locking switch protection sheet 24 are installed on the corresponding positions of a switch bracket 18, and finally the assembled components are all installed on the corresponding positions of a lock box 6.

The latch bolt and related accessories are assembled, as shown in figures 1 and 7, a round hole 3-2 is arranged at the center position of the latch bolt 3, a latch bolt reset spring 5 is arranged in the round hole 3-2 and is arranged in the lock box together with the latch bolt 3 from a square hole 6-6 of the lock box 6, the other end of the latch bolt reset spring 5 is propped against the upper surface of a blocking piece 6-7 of the lock box, a groove 3-1 is arranged on the latch bolt 3, a blocking position 4-1 is arranged on a latch bolt fixing plate 4, and the blocking position 4-1 of the latch bolt fixing plate 4 is arranged in the groove 3-1 of the latch bolt 3, so that the latch bolt 3 cannot run out of the lock box 6 due to the compression force of the latch bolt reset spring 5. The direction of the latch bolt 3 is consistent with the direction of the door and is divided into an inner direction and an outer direction, and the mounting direction of the latch bolt is required to be changed according to the inner direction and the outer direction as shown in fig. 7.

Assembling the lock cover and the edge strip, as shown in figure 1, assembling all the internal parts, then installing the lock cover 23, tightening the screw 22, and aligning the edge strip 2 with the lock box lining strip 6-4 for assembly

The installation of the whole lock, install the whole lock on the door, install the lock body and fix on the door first, fasten trim and lock body together on the door with the wood screw, install 8X8 square shafts, 6X6 square shafts of the rear side of door on both sides of the lock body sequentially, link 8P line of the lock body with 8P line of the front panel, the mechanical key on the front panel pulls out the piece and aims at the rectangular hole 14-2 inserted in the middle of mechanical key pulling out piece 14 on the lock body, the front, back panel handles the square hole and aims at 8X8 square shafts, back panel twists the square hole and aims at 6X6 square shafts and draws close to the outside, inside of the door respectively, tighten up four panel fixed screws, fix the battery cover finally.

The working principle is as follows: 1. in the initial state, namely the normal door closing state, the latch bolt 3 extends, the motor driving assembly does not act any more, the pin 28 is in the extending state, and the clutch part 9 idles when the front panel handle is pressed down;

2. when the circuit board reads the door card, the transmission state of the lock body structure is realized, the 6X6 small square shaft and the twisting handle pulling part 15 are driven to rotate clockwise by 45 degrees by clockwise rotating the twisting handle on the back panel, the back locking tongue 16 extends out of the lock box 6, at the moment, the back locking tongue 16 is separated from the back locking switch protection plate 24 and the back locking switch 20, the back locking switch 20 transmits a back locking signal to the circuit board through an 8P connecting line, at the moment, the circuit board can prompt that the door is in a back locking state, when the door opening clamp touches a card reading area on the front panel, the circuit board can transmit an unlocking signal to the motor driving component 26, after the motor driving component 26 works, the L-shaped driving part 27 moves rightwards and presses the pin 28 to move rightwards, at the moment, when the handle of the front panel is pressed downwards, the 8X8 square shaft, the clutch part 9 and the main pulling part 8 are driven to rotate clockwise, the main, pulling a blocking piece 4-3 on the oblique tongue fixing plate 4 to drive the oblique tongue fixing plate 4 and the oblique tongue 3 to retract into the lock box 6, pressing a protecting plate 19 of an oblique tongue switch and an oblique tongue switch 25 by a bent shape 4-2 at the tail part of the oblique tongue fixing plate 4, and transmitting a signal that the door is unlocked to the circuit board by the oblique tongue switch 25 through an 8P connecting line 21 at the moment to enable the circuit board to know that the door lock is opened; the first pulling head 8-2 of the main pulling part 8 simultaneously pulls the fourth pulling head 15-5 on the twisting hand pulling part 15 to drive the twisting hand pulling part 15 and the lower pulling part 13 to rotate 45 degrees anticlockwise, the middle mechanical key pulling part 14 is not affected and does not act to drive the reverse bolt 16 to withdraw into the lock box 6, the reverse bolt 16 presses the reverse lock switch protection plate 24 and the reverse lock switch 20 at the moment, a signal that the circuit board reverse bolt 16 is opened is transmitted through an 8P connecting line 21, the reverse bolt 16 and the oblique bolt 3 are both in the lock box 6 at the moment, a door can be opened by pushing or pulling the door, after the door lock is opened, the circuit board transmits a signal to the motor driving component 26, the L-shaped driving part 27 is withdrawn into the motor driving part 26, the handle is released after the door is opened, the handle returns to the initial state of the position due to a handle return spring inside the panel, the oblique bolt 3 is ejected out of the lock box 6 due to the acting force of the oblique bolt return spring 5, whole lock body returns initial condition, when pushing down the handle again this moment, separation and reunion piece 9 has been unable to drive the rotation of main pulling part 8, and the handle idles, can't unblank.

3. When the mechanical key is used for unlocking, the lock body structure is in a transmission state, when in an initial state, the rectangular hole 14-2 in the middle of the mechanical key pulling piece 14 is in a vertical state, when the mechanical key is used for clockwise twisting 45 degrees, the mechanical key pulling piece 14 is driven to clockwise rotate 45 degrees, the step 14-3 on the mechanical key pulling piece 14 drives the twisting hand pulling piece 15 and the lower pulling piece 13 to clockwise rotate 45 degrees, the reverse lock tongue 16 extends out, the door lock is in a reverse locking state, when the mechanical key is rotated 90 degrees anticlockwise, the mechanical key pulling piece 14 is driven to anticlockwise rotate 90 degrees, the twisting hand pulling piece 15 and the lower pulling piece 13 are driven to anticlockwise rotate 45 degrees, the reverse lock tongue 16 is retracted into the lock box 6, the mechanical key is further continuously rotated 45 degrees anticlockwise to drive the mechanical key pulling piece 14 to anticlockwise rotate 45 degrees, a second pulling head 14-1 and a fifth pulling head 14-2 are arranged on the mechanical key pulling piece 14 shown in figure 3, the second shifting head 14-1 drives the blocking piece 4-3 on the latch bolt fixing plate 4 to move rightwards, the fifth shifting head 14-2 drives the mechanical key switch pressing piece 11 to move upwards, the mechanical key switch 17 is pressed at the moment, a signal is sent to a circuit board by a switch, the mechanical key unlocking record is recorded once, the latch bolt 3 also moves rightwards and retracts into the lock box 6, the door can be opened by pushing or pulling the door, the mechanical key rotates 45 degrees clockwise after the door is opened, the mechanical key shifting piece 14 is driven to rotate 45 degrees clockwise, and the latch bolt 3 returns to the initial state. .

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a special lock body of compact hotel which characterized in that: the mechanical key switch comprises a 4X20 wood-tooth screw (1), a decoration strip (2), an oblique tongue (3), an oblique tongue fixing plate (4), an oblique tongue reset spring (5), a lock box (6), an auxiliary pulling piece (7), a main pulling piece (8), a clutch piece (9), a main reset spring (10), a mechanical key switch pressing piece (11), a switch pressing piece spring (12), a lower pulling piece (13), a mechanical key pulling piece (14), a wrench pulling piece (15), a counter lock tongue (16), a mechanical key switch (17), a switch bracket (18), an oblique tongue switch protection plate (19), a counter lock switch (20), an 8P connecting wire (21), a screw (22), a lock cover (23), a counter lock switch protection plate (24), an oblique tongue switch (25), a motor driving component (26), an L-shaped driving piece (27), a pin (28), a copper sleeve (29) and a pin reset spring (30), wherein the oblique tongue (3), The latch bolt fixing plate (4), the latch bolt resetting spring (5), the lock box (6), the auxiliary pulling piece (7), the main pulling piece (8), the clutch piece (9) and the main resetting spring (10) are all arranged on the lock box (6), the mechanical key switch pressing piece (11), the switch pressing piece spring (12), the lower pulling piece (13), the mechanical key pulling piece (14), the twisting hand pulling piece (15), the counter lock tongue (16), the mechanical key switch (17), the switch bracket (18), the latch switch protection sheet (19), the counter lock switch (20), the 8P connecting wire (21), the screw (22), the lock cover (23), the counter lock switch protection sheet (24), the latch switch (25), the motor driving component (26) and the L-shaped driving piece (27) are sequentially arranged between the lock box (6) and the lock cover (23) from top to bottom, the decorative strip (2) is fixed on the lock box (6) through a 4X20 wood-tooth screw (1).

2. The compact hotel lock of claim 1, further comprising: the lock box (6) is provided with a stud (6-1) and a guide groove (6-2), and the mechanical key switch pressing piece (11) is arranged in the stud (6-1) and the guide groove (6-2) of the lock box (6).

3. The compact hotel lock of claim 1, further comprising: one end of the switch pressing piece spring (12) is arranged on the stud (6-1), and the other end of the switch pressing piece spring (12) is arranged on the mechanical key switch pressing piece (11).

4. The compact hotel lock of claim 1, further comprising: the lower pulling piece (13) is provided with a boss (13-1), the axis of the lower pulling piece (13) is provided with a first square through hole (13-2), the mechanical spoon pulling piece (14) is provided with a second pulling head (14-1), a step (14-3) and a third pulling head (14-4), and the axis of the mechanical spoon pulling piece (14) is provided with a rectangular through hole (14-2).

5. The compact hotel lock of claim 4, further comprising: the mechanical spoon is characterized in that a first notch (15-1), a second notch (15-3) and a fourth pulling head (15-5) are arranged on the twisting hand pulling piece (15), a second square through hole (15-4) is formed in the axis of the twisting hand pulling piece (15), the axis of the lower pulling piece (13) is aligned with the axis of the mechanical spoon pulling piece (14) and the axis of the twisting hand pulling piece (15), and the boss (13-1) is aligned with the first notch (15-1) in the twisting hand pulling piece (15) for limiting assembly.

6. The compact hotel lock of claim 1, further comprising: the anti-lock bolt (16) is provided with a guide limiting groove (16-1) and a U-shaped groove (16-2), the head of the twisting pulling piece (15) is provided with a cylinder (15-2) which is aligned and arranged in the guide limiting groove (16-1), and the axis of the twisting pulling piece (15) is aligned with the axis of the U-shaped groove (16-2) on the anti-lock bolt (16).

7. The compact hotel lock of claim 1, further comprising: the head of the anti-lock tongue (16) is arranged in the anti-lock hole (6-5) of the lock box, so that the anti-lock tongue (16) is driven to extend out of the motion rail of the lock box (6) and retract into the lock box (6) when the hand-operated pulling piece (15) is twisted for a certain angle.

8. The compact hotel lock of claim 1, further comprising: the pin (28) is arranged in the main pulling part (8), and the copper sleeve (29) and the pin resetting spring (30) are sleeved outside the pin (28).