Novel indoor door lock

Abstract

The utility model discloses a novel indoor door lock, which comprises an inner handle, an outer handle and a panel seat, and is characterized in that the inner handle is provided with a lock cavity, a shifting piece is arranged in the lock cavity in a sliding manner, a springback hole is provided with a lock rod in a springback manner, one end of the shifting piece is provided with a lock part, and the other end of the shifting piece is provided with a handle. The shifting piece shifts towards the direction of the lock rod to downwards press the lock rod through the lock part until the lock rod is inserted into the back lock hole of the panel seat to form a back lock structure; the rotating seat is provided with a torsional spring, the rotating seat penetrates through a rotating hole of the panel and is sequentially provided with a locking ring or a clamping spring, and the panel and the rotating seat are matched with the one-way column in an abutting mode through an upper limiting part and matched with the limiting column in an abutting mode to form a one-way downward rotating structure; the panel seat and the inner handle as well as the panel seat and the outer handle respectively form a detachable mounting structure through the mounting hole I and the mounting hole II; according to the utility model, the handle is effectively prevented from drooping, the universality of indoor door lock installation is realized, the purchase cost and time cost of consumers are reduced, and the production and operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a novel indoor door lock in the technical field of door locks. Background Art

[0002] Indoor door locks include bedroom door locks, balcony door locks, and bathroom door locks. Indoor door locks are used indoors, and their anti-theft requirements are not so strict. They have a relatively simple structure and have a reverse locking function. Indoor door locks are basically installed in every room, bedroom, balcony, and bathroom, and their installation volume is relatively large. Currently, the indoor door locks on the market (especially mid-to-high-end solid wood door locks) have the following areas that need further improvement:

[0003] 1. Since interior doors can open inward on the left, inward on the right, outward on the left, or outward on the right, the installation position and handle orientation of the corresponding interior door locks are also different. If it is a one-way lock (that is, the handle of the interior door lock can only be turned downward), the handle rotation direction is also different. When installing the interior door lock, the installer may easily encounter a situation where the purchased interior door lock does not correspond to the installation position or handle orientation of the interior door. For example, if the purchased interior door lock has a left-opening structure, but the actual installation scenario is a right-opening structure, it cannot be installed and needs to be re-purchased, resulting in a waste of cost and time. For the manufacturers of interior door locks, since they cannot determine the installation position of the interior door lock and the usage of the corresponding handle orientations in various situations, they cannot accurately produce and stock the goods, and the manufacturer's production and operation costs are also relatively increased.

[0004] 2. Some mid-to-low-end interior door locks mostly adopt a two-way rotation structure, that is, the door can be opened by turning the handle upward or downward. The two-way reset torsion spring and the positioning paddle cooperate with the limit part on the panel to form a reset structure after the handle is rotated. When the handle is rotated downward and upward for a long time, the reset torsion spring will be fatigued and deformed. The positioning paddle is generally stamped with iron sheets, and the door lock panel is generally made of aluminum. The material hardness of the positioning paddle is higher than that of the handle. The positioning paddle collides with the limit part on the panel for a long time, resulting in a gap in the limit part on the panel, which will also cause the reset angle of the paddle to change. In addition, the handle has a considerable weight. Over time, the handle will sag and cannot maintain a horizontal line, affecting the comfort and aesthetics of the interior door lock. In severe cases, it will lead to the embarrassing situation that the interior door lock can be opened by lightly touching the handle, which reduces the service life of the overall interior door lock.

[0005] In response to the above problems, a new type of indoor door lock is specially developed. Utility Model Content

[0006] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a new type of indoor door lock, which adopts a structure of a downward one-way rotating handle, a mounting structure in which the panel seat is separated from the inner handle and the outer handle, and a reverse locking structure is formed between the inner handle and the panel, which effectively prevents the handle from sagging. The inner and outer panel seats are interchangeable, and the inner and outer handles can be installed interchangeably with the inner panel seat or the outer panel seat of the indoor door lock, so as to cope with the installation of the indoor door lock on indoor doors with different door opening methods, and the installation is more convenient, avoiding the situation where the indoor door lock cannot be installed after purchasing the wrong one, thereby reducing the purchase cost and time cost of consumers, and the manufacturer can also uniformly produce and prepare stocks, thereby reducing the manufacturer's production and operation costs.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a new indoor door lock, including an inner handle, an outer handle, and a panel seat, characterized in that: the inner handle is provided with a lock cavity, a paddle is slidably provided in the lock cavity, one end of the lock cavity is provided with a rebound hole, the rebound hole is reboundably provided with a lock rod, one end of the paddle is provided with a lock portion, the front end of the lock portion is provided with an inclined surface, the panel seat is provided with a reverse lock hole and a mounting hole, the paddle is moved toward the lock rod, the lock portion presses the lock rod downward until the lock rod is inserted into the reverse lock hole of the panel seat to form a reverse lock structure;

[0008] The panel seat comprises a panel and a linkage seat rotatably mounted on the panel, the panel is provided with a rotating hole, the linkage seat is installed with a square shaft, one end of the linkage seat is provided with a lock seat, the other end of the rotating seat is provided with a torsion spring, the rotating seat passes through the rotating hole of the panel and is sequentially installed with a lock ring or a retaining spring, the torsion spring is provided with an inner end clamp and an outer end clamp, the rotating seat is provided with a sleeve, the panel is provided with a one-way column and a limit column, the rotating seat is provided with an upper limit part, a lower limit part and a top column, the inner end clamp of the torsion spring is inserted into the sleeve, and the outer end clamp of the torsion spring is stopped by the top column, the panel and the rotating seat form a one-way downward rotation structure through the upper limit part and the one-way column, and the lower limit part and the limit column.

[0009] The rotating seat is provided with a mounting hole 1, the inner handle and the outer handle are provided with a mounting hole 2, and a detachable mounting structure is formed between the panel seat and the inner handle and the outer handle through the mounting hole 1 and the mounting hole 2 respectively.

[0010] In the present invention, the rotating seat is installed with a torsion spring, and the rotating seat is sequentially installed with a clamping ring and a locking ring through the rotating hole of the panel. The inner ring of the clamping ring is provided with a clamping block, and the clamping block is clamped into the sleeve of the rotating seat. The outer ring of the clamping ring is provided with a tooth block, and the outer ring of the lock ring is provided with a bayonet. The lock ring and the rotating seat are installed through a threaded structure. After the lock ring is installed, part of the tooth block of the clamping ring is folded into the bayonet.

[0011] In the utility model, a rebound part is provided on the upper part of the rebound hole, and a locking part is provided on the lower part of the rebound hole. The diameter of the rebound part is larger than the diameter of the locking part. The locking rod is provided with a bullet and a rod body. The top of the bullet is arc-shaped. The diameter of the bullet is larger than the diameter of the rod body. The rod body is provided with a spring inserted into the rebound hole to form a reboundable installation structure of the locking rod in the rebound hole.

[0012] In the present invention, the paddle is provided with a paddle handle, the inner handle is provided with a lock window, the paddle handle is installed on the lock window and forms an anti-locking and unlocking structure by horizontally paddle handle.

[0013] In the present invention, the plectrum is provided with an elastic positioning head, and the lock cavity is provided with a positioning recess. The elastic positioning head cooperates with the positioning recess to form a positioning structure for the plectrum after being horizontally shifted.

[0014] In the present invention, the paddle is fixed in the lock cavity through a sealing cover.

[0015] In the present invention, the inner handle and the outer handle are provided with a surface cover, the inner handle is provided with the surface cover by gluing, and the outer handle is provided with the surface cover by magnetism.

[0016] In the present invention, the panel seats are mounted with screws through the mounting holes and the anti-locking holes, and the anti-locking holes have an anti-locking space.

[0017] In the utility model, a transmission rod is inserted into the square shaft, a lock cap is provided at one end of the transmission rod and a lock core is provided at the other end, the lock core forms a linkage structure with the lock cap through the transmission rod, a tooth claw is provided on the top of the lock cap, and the paddle is provided with a tooth opening that cooperates with the tooth claw, the lock cap and the paddle form a paddle toggling structure through the tooth claw and the tooth opening, and the rotation of the lock core drives the transmission rod and the lock cap to rotate to form a paddle anti-locking and unlocking structure.

[0018] In the utility model, the panel is provided with a washer, and the washer is located between the panel and the torsion spring.

[0019] After adopting the above structure, the beneficial effects of the utility model are:

[0020] 1. The paddle is toggled towards the lock rod, and through the lock part, the lock rod is pressed downward until the lock rod is inserted into the anti-lock hole of the panel seat to form an anti-lock structure. The inner handle forms an anti-lock structure by setting the paddle, the lock rod and the anti-lock hole of the panel seat. The panel seats corresponding to the inner handle and the outer handle can be interchanged. During the installation process, first determine the installation position of the door lock and the installation direction of the handle according to the way of opening the door. Even if the installation position and the handle orientation of the purchased indoor door lock do not correspond, if it is a one-way lock, there may be a non-corresponding handle rotation direction, and the correct installation of the indoor door lock can also be achieved through the interchange of the panel seats. First, the two panel seats are installed on the door body by clamping, and then the handle is installed. The utility model avoids the situation where the purchased indoor door lock does not correspond to the indoor door during the installation of the indoor door lock, realizes the universality of the installation of the indoor door lock, reduces the purchase cost and time cost of consumers, and the manufacturer can also produce and stock uniformly, reducing the production and operation cost.

[0021] 2. The panel and the rotating seat form a one-way downward rotation structure by the upper limit part abutting and cooperating with the one-way column and the lower limit part abutting and cooperating with the limit column. The inner handle and the outer handle can only rotate downward. The torsion spring forms a horizontal reset structure after the inner handle and the outer handle rotate downward. The torsion spring can also be set with redundant reset elastic force, and the horizontal reset state of the handle is more stable, effectively preventing the handle of the traditional indoor door lock from sagging or not being able to maintain a horizontal state, which affects the use comfort and aesthetics of the indoor door lock. In the case of serious sagging of the traditional indoor door lock, it will also lead to the embarrassing situation that the indoor door lock is opened by gently touching the handle, reducing the service life of the overall indoor door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, but do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is the exploded structure schematic diagram of the present invention;

[0024] Figure 2 is the schematic diagram of the torsion spring installation structure of the linkage seat in the present invention Figure 1 ;

[0025] Figure 3 is the schematic diagram of the torsion spring installation structure of the linkage seat in the present invention Figure 2 ;

[0026] Figure 4 is the schematic diagram of the installation structure of the linkage seat and the panel in the present invention;

[0027] Figure 5 is the schematic diagram of the structure of the paddle and the lock cap in the present invention;

[0028] Figure 6 This is a schematic diagram of the installation structure of the central shaft, transmission rod, lock cap and lock core of the utility model;

[0029] Figure 7 This is a state diagram of the torsion spring on the panel seat in the utility model;

[0030] Figure 8 It is a schematic diagram of the screenshot structure of the utility model in the anti-lock state;

[0031] Figure 9 This is a structural diagram of the utility model in which the rotating seat and the panel are installed using a retaining spring.

[0032] Description of reference numerals:

[0033] 1-Inner handle; 2-Outer handle; 3-Panel seat; 4-Square shaft; 5-Mounting hole 2; 6-Face cover; 7-Drive rod; 8-Washer;

[0034] 11-lock chamber; 12-paddle; 13-rebound hole; 14-locking rod; 15-locking part; 16-locking window; 17-cover;

[0035] 31- Anti-locking hole; 32- Mounting hole; 33- Panel; 34- Linkage seat; 35- Rotation hole; 36- Torsion spring; 37- Snap ring; 38- Lock ring; 39- Circlip; 71- Lock cap; 72- Lock cylinder;

[0036] 11a - positioning recess; 12a - dial handle; 12b - elastic positioning head; 12c - tooth opening; 13a - rebound part; 13b - locking part; 14a - bullet head; 14b - rod body; 14c - spring;

[0037] 31a- Anti-lock space department;

[0038] 33a- one-way column; 33b- limit column;

[0039] 34a - lock base; 34b - rotating base; 34c - sleeve; 34d - top column; 34e - upper limit portion; 34f - lower limit portion; 34g - mounting hole 1; 36a - inner end clamp; 36b - outer end clamp; 37a - clamping block; 37b - tooth block;

[0040] 38a-bayonet;

[0041] 71a-tooth claw;

[0042] 9a-magnetic ring; 9b-magnetic sheet;

[0043] F-handle turns downward direction. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] refer to Figure 1-9 The invention relates to a novel structure of an interior door lock, comprising an interior handle, an exterior handle, and a panel seat. The interior handle is provided with a lock cavity, a paddle slidably provided in the lock cavity, a rebound hole is provided at one end of the lock cavity, a lock rod is reboundably provided in the rebound hole, a lock portion is provided at one end of the paddle, a front end of the lock portion is provided with an inclined surface, the panel seat is provided with an anti-lock hole and a mounting hole, the paddle is toggled in the direction of the lock rod, and the lock rod is pressed downward by the lock portion until the lock rod is inserted into the anti-lock hole of the panel seat to form an anti-lock structure, and the inclined surface at the front end of the lock portion makes it easier for the lock portion to press the lock rod, and the anti-lock function or unlocking function of the interior handle is realized by toggling the paddle of the interior handle, and the structure of the anti-lock function is realized by the lock rod of the interior handle and the anti-lock hole of the panel seat, the inner surface of the interior door and the outer panel seat are interchangeable, so as to cope with the situation that the purchased interior door lock does not correspond to the interior door, and there is no need to repurchase the interior door lock, thereby reducing the purchase cost and time cost of consumers;

[0046] The panel seat includes a panel and a linkage seat rotatably mounted on the panel. The panel is provided with a rotating hole, the linkage seat is installed with a square shaft, a lock seat is provided at one end of the linkage seat, and a rotating seat is provided at the other end. The rotating seat is installed with a torsion spring, and the rotating seat is sequentially installed with a lock ring or a retaining spring through the rotating hole of the panel. The torsion spring is provided with an inner end clamp and an outer end clamp, the rotating seat is provided with a sleeve, the panel is provided with a one-way column and a limit column, the rotating seat is provided with an upper limit part, a lower limit part and a top column, the inner end clamp of the torsion spring is inserted into the sleeve, and the outer end clamp of the torsion spring is stopped by the top column. When the torsion spring is produced, a surplus reset elastic force will be set, such as Figure 2, when the inner end chuck of the torsion spring is inserted into the socket, the outer end chuck of the torsion spring exceeds the position of the ejector post due to the excess reset elasticity. At this time, the outer end chuck of the torsion spring is twisted to the position of the ejector post by a tool for stopping. The horizontal reset state of the handle is more stable, effectively preventing the handle of the traditional indoor door lock from sagging or being unable to maintain a horizontal state. The panel and the rotating seat form a one-way downward rotation structure through the upper limit part contacting and cooperating with the one-way post and the lower limit part contacting and cooperating with the limit post. When the rotating seat rotates downward on the panel, it cannot rotate anymore after the upper limit part touches the limit post, forming a limit structure for the downward rotation of the handle. When the rotating seat rotates upward on the panel, it cannot rotate because the upper limit part and the one-way post are in a touching state, thus forming a one-way rotation structure in which the handle can only rotate downward on the panel seat. It should be noted that the outer end chuck of the torsion spring is stopped by the ejector post of the rotating seat during installation. After the rotating seat is installed on the panel, the outer end chuck of the torsion spring is located between the one-way post and the limit post of the panel and is in contact and positioned through the one-way post;

[0047] The rotating seat is provided with a first mounting hole, and the inner handle and the outer handle are provided with a second mounting hole. A detachable mounting structure is respectively formed between the panel seat and the inner handle and the outer handle through the first mounting hole and the second mounting hole. The second mounting hole of the outer handle is the same as that of the inner handle and does not need to be marked in the drawings. The inner handle and the panel seat or the outer handle and the panel seat are both detachable structures. During the installation process, the installation position of the handle can be determined first according to the opening method of the indoor door and the orientation of the handle, so as to determine the corresponding panel seat to be installed. First install the panel seat, and then install the handle. Even if the installation position and the orientation of the handle of the purchased indoor door lock do not correspond, if it is a one-way lock, the rotation direction of the handle may not correspond, and the correct installation of the indoor door lock can also be achieved by interchanging the panel seats.

[0048] In the present utility model, the inner ring of the snap ring is provided with a snap block, and the snap block is snapped into the socket of the rotating seat. The outer ring of the snap ring is provided with a tooth block, and the outer ring of the lock ring is provided with a bayonet. The lock ring and the rotating seat are installed through a threaded structure. After the lock ring is installed, part of the tooth block of the snap ring is folded into the bayonet. If the snap ring is directly snapped into the rotating seat, it is easy to cause the installation between the rotating seat and the panel to be insufficiently tightened, and the installation of the torsion spring is also in a loose state. During use, the handle is also in a loose state, and the user experience of the indoor door lock will be reduced. To avoid this phenomenon, the production precision requirements for each component of the indoor door lock are relatively high. By forming the installation between the rotating seat and the panel through the structure of the snap ring and the lock ring, the rotating seat and the panel can be tightly installed by first twisting the lock ring, and then part of the tooth block of the snap ring is folded into the bayonet of the lock ring, which can effectively prevent the loosening of the lock ring, thus ensuring the tight installation of the rotating seat on the panel.

[0049] In the present utility model, a resilient portion is provided above the resilient hole, and a locking portion is provided below the resilient hole. The diameter of the resilient portion is greater than that of the locking portion. The locking rod is provided with a bullet head and a rod body. The top of the bullet head is arc-shaped, and the diameter of the bullet head is greater than that of the rod body. A spring is sleeved on the rod body and inserted into the resilient hole to form a resilient mounting structure of the locking rod in the resilient hole. When the toggle is toggled towards the locking rod and presses the locking rod downward through the locking portion until the locking rod is inserted into the anti-lock hole of the panel, the indoor door lock forms an anti-lock structure.

[0050] In the present utility model, the toggle is provided with a toggle handle, and the inner handle is provided with a locking window. The toggle handle is installed in the locking window, and the anti-lock and unlocking structures are formed by horizontally toggling the toggle handle.

[0051] In the present utility model, the toggle is provided with an elastic positioning head, and the locking cavity is provided with a positioning recess. The elastic positioning head and the positioning recess cooperate to form a positioning structure after the horizontal toggling of the toggle. When the toggle is toggled towards the locking rod, the elastic positioning head slides into the positioning recess of the locking cavity to form a positioning state of the toggle in the locking cavity, thereby realizing the anti-lock function.

[0052] In the present utility model, the toggle is fixed in the locking cavity through a cover, and the cover can be fixed to the handle by screws to ensure the smooth sliding of the toggle in the locking cavity.

[0053] In the present utility model, the inner handle and the outer handle are provided with face covers. The inner handle is provided with a face cover by adhesive bonding, and the outer handle is provided with a face cover by magnetic attraction. For example, a magnetic ring is installed on the outer handle by screws, and a magnetic sheet (the magnetic sheet can be adhesively bonded) is arranged on the face cover to form a magnetic-attraction mounting structure of the face cover on the outer handle. When it is necessary to open the door lock with a key, the face cover of the outer handle can be removed.

[0054] In the present new model, between the panel seats, they are installed by screws through the installation holes and the anti-lock holes, and there is an anti-lock space portion remaining in the anti-lock holes. The anti-lock holes of the panel seats are simultaneously used for the installation structures of the panel seats on the inner and outer surfaces of the indoor door and the anti-lock structure formed by the locking rod of the handle and the panel seat. Thus, the panel seats inside and outside the door can be interchanged and both can achieve the anti-lock function, realizing the installation method of first installing the panel of the indoor door lock and then installing the inner and outer handles, and there will be no phenomenon of incorrect purchase and installation of the indoor door lock, making the installation more convenient.

[0055] In the utility model, a transmission rod is inserted into the square shaft, a lock cap is provided at one end of the transmission rod and a lock core is provided at the other end. The lock cap and the lock core can be provided with a straight hole to form an assembly structure with the transmission rod. The lock core can be installed on the handle through a fixing plate. The lock core forms a linkage structure with the lock cap through the transmission rod. A tooth claw is provided on the top of the lock cap, and a pick is provided with a tooth opening that cooperates with the tooth claw. The lock cap and the pick form a linkage structure through the tooth claw and the tooth opening. The rotation of the lock core drives the transmission rod and the lock cap to rotate to form a pick anti-locking and unlocking structure. When the lock core is rotated by the key, the lock core rotates the lock cap through the transmission rod, and the tooth claw of the lock cap links the tooth opening of the pick to form the toggling of the pick, thereby forming an anti-locking and unlocking structure after the pick is toggled.

[0056] In the utility model, the panel is provided with a gasket, which is located between the panel and the torsion spring. The gasket effectively reduces the friction sound between the torsion spring and the rotating seat, thereby reducing wear.

[0057] Working principle: When it is necessary to install the interior door lock of the utility model, first determine the installation position of the interior door lock and the installation direction of the handle according to the way of opening the door, and then install the corresponding two panel seats on the door body through the installation holes and the anti-locking holes by screw clamping. Install the inner handle and the outer handle respectively through the installation hole 1 of the lock seat and the installation hole 2 of the inner handle and the outer handle, and the installation of the interior door lock is realized; when it is necessary to anti-lock, push the paddle toward the direction of the lock rod through the dial handle, and the locking part of the paddle presses the lock rod downward until the lock rod is inserted into the anti-locking hole of the panel seat, and the interior door lock forms an anti-locking structure; when it is necessary to unlock, push the paddle in the opposite direction of the lock rod through the dial handle The locking part of the paddle cancels the downward force on the lock rod, and the lock rod rebounds and withdraws from the anti-lock hole of the panel seat. The interior door lock is in the unlocked state, and the door can be opened by turning the inside handle or outside handle. When the interior door lock is in the anti-lock state and needs to be unlocked from the outside, first remove the face cover of the outside handle, insert the key into the lock cylinder and turn it, and the lock cylinder rotates the lock cap through the transmission rod. The teeth of the lock cap are linked to the teeth of the paddle to form the movement of the paddle, and the paddle is pushed in the opposite direction of the lock rod. The locking part of the paddle cancels the downward force on the lock rod, and the lock rod rebounds and withdraws from the anti-lock hole of the panel seat. The interior door lock is in the unlocked state, and the door can be opened by turning the outside handle.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of indoor door lock, comprising an inner handle, an outer handle, and a panel base, characterized in that: The inner handle is provided with a lock cavity, a paddle is slidably provided in the lock cavity, a rebound hole is provided at one end of the lock cavity, a lock rod is resiliently provided in the rebound hole, a lock portion is provided at one end of the paddle, a front end of the lock portion is provided with an inclined surface, and the panel seat is provided with an anti-locking hole and a mounting hole. The paddle is moved toward the lock rod, and the lock rod is pressed downward by the lock portion until the lock rod is inserted into the anti-locking hole of the panel seat to form an anti-locking structure; The panel seat comprises a panel and a linkage seat rotatably mounted on the panel, the panel is provided with a rotating hole, the linkage seat is installed with a square shaft, one end of the linkage seat is provided with a lock seat, the other end of the rotating seat is provided with a torsion spring, the rotating seat passes through the rotating hole of the panel and is sequentially installed with a lock ring or a retaining spring, the torsion spring is provided with an inner end clamp and an outer end clamp, the rotating seat is provided with a sleeve, the panel is provided with a one-way column and a limit column, the rotating seat is provided with an upper limit part, a lower limit part and a top column, the inner end clamp of the torsion spring is inserted into the sleeve, and the outer end clamp of the torsion spring is stopped by the top column, the panel and the rotating seat form a one-way downward rotation structure through the upper limit part and the one-way column, and the lower limit part and the limit column. The rotating seat is provided with a mounting hole 1, the inner handle and the outer handle are provided with a mounting hole 2, and a detachable mounting structure is formed between the panel seat and the inner handle and the outer handle through the mounting hole 1 and the mounting hole 2 respectively.

2. The indoor door lock according to claim 1, wherein: The rotating seat is equipped with a torsion spring, and the rotating seat is sequentially equipped with a clamping ring and a locking ring through the rotating hole of the panel. The inner ring of the clamping ring is provided with a clamping block, and the clamping block is clamped into the sleeve of the rotating seat. The outer ring of the clamping ring is provided with a tooth block, and the outer ring of the lock ring is provided with a bayonet. The lock ring and the rotating seat are installed through a threaded structure. After the lock ring is installed, part of the tooth block of the clamping ring is folded into the bayonet.

3. The indoor door lock according to claim 1, wherein: A rebound part is provided at the upper part of the rebound hole, and a locking part is provided at the lower part of the rebound hole. The diameter of the rebound part is larger than the diameter of the locking part. The locking rod is provided with a bullet and a rod body. The top of the bullet is arc-shaped. The diameter of the bullet is larger than the diameter of the rod body. The rod body is provided with a spring that is inserted into the rebound hole to form a rebound installation structure of the locking rod in the rebound hole.

4. The indoor door lock according to claim 1, wherein: The paddle is provided with a dial handle, the inner handle is provided with a lock window, the dial handle is installed on the lock window and forms an anti-locking and unlocking structure by horizontally dialing the dial handle.

5. The indoor door lock according to claim 1, wherein: The plectrum is provided with an elastic positioning head, and the lock cavity is provided with a positioning recess. The elastic positioning head cooperates with the positioning recess to form a positioning structure for the plectrum after being horizontally shifted.

6. The indoor door lock according to claim 1, wherein: The paddle is fixed in the lock cavity through a cover.

7. The indoor door lock according to claim 1, characterized in that: The inner handle and the outer handle are provided with a surface cover. The inner handle is provided with the surface cover by gluing, and the outer handle is provided with the surface cover by magnetism.

8. The indoor door lock according to claim 1, wherein: The panel seats are mounted with screws through mounting holes and anti-locking holes, and anti-locking spaces are left in the anti-locking holes.

9. The indoor door lock according to claim 1, characterized in that: A transmission rod is inserted into the square shaft, a lock cap is provided at one end of the transmission rod and a lock core is provided at the other end, the lock core forms a linkage structure with the lock cap through the transmission rod, a tooth claw is provided on the top of the lock cap, and the paddle is provided with a tooth opening that cooperates with the tooth claw, the lock cap and the paddle form a paddle toggling structure through the tooth claw and the tooth opening, and the rotation of the lock core drives the transmission rod and the lock cap to rotate to form a paddle anti-locking and unlocking structure.

10. The indoor door lock according to claim 1, characterized in that: The panel is provided with a washer, and the washer is located between the panel and the torsion spring.

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