A simplified reversing push-pull lock body

Abstract

The present invention belongs to the technical field of door locks, and particularly refers to a simplified reversing push-pull lock body. A simplified reversing push-pull lock body comprises: a shell; a bolt plate, which is connected to one side of the shell and is provided with a bolt hole; a bolt, which is arranged in the shell and can extend or retract into the bolt hole; a reset mechanism, which is connected to the rear end of the bolt so that the bolt always has a tendency to pop out toward the bolt hole, and the reset mechanism prevents the bolt from turning over; a reverse locking member is arranged in the shell, one end of the reverse locking member is rotatably arranged on the shell, and the other end is connected to the shell through a torsion spring, and one side of the reverse locking member is formed with a shifting groove for the shifting block of the lock core to extend into, and the other side is formed with a first stopper to limit the movement of the reset mechanism. The reverse locking mechanism is simplified, and the original function of the reverse locking mechanism is realized by a reverse locking member, which greatly reduces the manufacturing cost of the product and improves the production efficiency and stability of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of door locks, and in particular relates to a simplified reversing push-pull lock body. Background Art

[0002] The lock body is an important component of the door lock. For the existing lock bodies, the door opening action requires turning the handle to open the door.

[0003] In addition, for the existing lock bodies, especially the lock bodies using the inclined bolt as the lock bolt, the inclined bolt needs to be oriented in the direction of the inclined surface according to the direction of the door opening during assembly.

[0004] For example, ZL 201910839740.7 discloses a reversing push-pull lock body, in which the action of retracting the lock tongue into the lock tongue hole can be achieved without rotating the handle. When the handle is held and the door is pulled toward the opening side, the door lock can be opened.

[0005] The above-mentioned reversing push-pull lock body has many internal parts, resulting in high manufacturing costs of the product. It requires molds with multiple parts to achieve production. In addition, as more parts are required to achieve a single function, the reliability and stability of the product are reduced. That is, damage to a certain part can easily lead to failure of the overall function, and the assembly cycle and complexity of the product are increased. Summary of the invention

[0006] In view of the above problems, the present invention provides a simplified reversing push-pull lock body, so that the original anti-locking mechanism can be realized by one component, thus saving manufacturing costs and improving the stability of the product.

[0007] The object of the present invention is achieved in that:

[0008] A simplified reversing push-pull lock body comprises:

[0009] case;

[0010] A bolt plate, which is connected to one side of the housing and has a bolt hole;

[0011] A lock tongue, which is disposed in the housing and can extend out of or retract into the lock tongue hole;

[0012] A reset mechanism, which is connected to the rear end of the lock tongue so that the lock tongue always has a tendency to pop out toward one side of the lock tongue hole, and the reset mechanism prevents the lock tongue from turning over;

[0013] A counter-locking member is provided in the shell, one end of which is rotatably arranged on the shell, and the other end is connected to the shell through a torsion spring. A shifting groove is formed on one side of the counter-locking member for the shifting block of the lock core to extend into, and a first stop portion for limiting the movement of the reset mechanism is formed on the other side.

[0014] Furthermore, a locking column is formed at the rear end of the locking tongue, and the anti-locking member forms a limiting vertical plate, and a second stopper matched with the locking column is formed on the limiting vertical plate.

[0015] Furthermore, the second stop portion is distributed on the upper and lower sides of the limiting vertical plate.

[0016] Furthermore, the reset mechanism includes a reset push rod arranged in the shell, a receiving groove is formed at the front end of the reset push rod, a first spring is arranged in the receiving groove, a steel ball is arranged at the front end of the first spring, hinge arms are formed at both ends of the receiving groove, the lock tongue is formed with a hinge groove matching the hinge arm, the lock tongue is connected with the hinge arm of the reset push rod through the hinge groove, and the tail end of the lock tongue is against the steel ball, and a second spring is provided at the rear end of the reset push rod, and the second spring makes the reset spring have a tendency to push the lock tongue toward one side of the lock tongue hole.

[0017] Furthermore, the second spring is a conical helical spring.

[0018] Furthermore, a guide groove is formed on the shell, and guide blocks matching with the guide groove are formed on the upper and lower sides of the reset push rod.

[0019] Furthermore, limiting bosses are formed on both sides of the lock tongue, and the limiting bosses abut against the lock tongue plate.

[0020] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0021] With respect to the original lock body, the anti-locking mechanism is simplified, and the original function of the anti-locking mechanism is realized by an anti-locking part, which greatly reduces the manufacturing cost of the product and improves the production efficiency and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the lock body.

[0024] Figure 2 The internal structure of the lock body Figure 1 .

[0025] Figure 3 It is a state diagram when the anti-locking member, the reset mechanism and the lock tongue are separated.

[0026] Figure 4 The internal structure of the lock body Figure 2 .

[0027] Figure 5 This is a state diagram when the anti-locking member forms a limit on the reset mechanism and the lock tongue.

[0028] 1-housing, 11-guide groove, 2-lock tongue plate, 3-lock tongue, 31-hinge groove, 32-locking column, 33-limiting boss, 4-reset mechanism, 41-reset push rod, 411-hinge arm, 412-guide block, 42-accommodating groove, 43-first spring, 44-steel ball, 45-second spring, 5-anti-locking member, 51-pull groove, 52-first stop part, 53-limiting vertical plate, 531-second stop part, 6-torsion spring, 7-lock cylinder. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] like Figure 1 As shown, the reversing push-pull lock body includes a housing 1, a bolt plate 2 is connected to one side of the housing 1, a bolt hole is provided on the bolt plate 2, a bolt 3 is provided in the housing 1, and can be extended or retracted into the bolt hole, and the housing 1 of the lock body is not provided with a square core hole, that is, the lock body does not need to be connected to a rotatable handle, and the door matching the lock body only needs to be installed with a handle that can apply a force point, and by pulling the handle, the bolt 3 with the reversing push-pull function rotates, and the inclined surface on the bolt 3 contacts the lock box in the door frame, so that the bolt 3 retracts into the housing to open the door. This type of reversing push-pull lock body is simple to open the door, simplifying the existing lock body, which requires the bolt to be pulled back into the lock body by the handle.

[0031] like Figure 2 As shown, a reset mechanism 4 is provided in the housing 1, and the reset mechanism 4 is connected to the rear end of the lock tongue 3. The reset mechanism 4 serves to force the lock tongue 3 to always extend out of the lock tongue hole. In addition, the reset mechanism 4 can also hinder the rotation of the lock tongue 3, that is, the lock tongue 3 needs to overcome the force applied by the reset mechanism 4 to open the door. The structure of the reset mechanism 4 can refer to the reset mechanism of ZL 201910839740.7, but it is not limited to this. The reset mechanism 4 can also adopt other implementations.

[0032] A counter-locking member 5 is provided in the housing 1. The counter-locking member 5 is a simplified counter-locking mechanism. It is an integral part, one end of which is rotatably provided on the housing 1, and the other end is connected to the housing 1 via a torsion spring 6. The torsion spring 6 enables the counter-locking member 5 to switch between two states and thereby maintain its current state. A shifting groove 51 is formed on one side of the counter-locking member 5. The shifting groove 51 cooperates with a shifting block that can be inserted into a lock cylinder 7 in the lock body. When the shifting block is rotated, it abuts against the shifting groove 51 of the counter-locking member 5, so that the counter-locking member 5 rotates to overcome the force of the torsion spring 6 and thereby changes its state. The first stopper 52 located on one side of the counter-locking member 5 blocks the rear of the reset mechanism 4 when it is close to the reset mechanism 4, so that the reset mechanism 4 cannot move backward, thereby achieving the purpose of preventing the lock tongue 3 from retracting into the lock tongue hole. Figure 4 As shown, the anti-locking member 5 has entered the locked state under the action of the lock core shifting block.

[0033] Further, such as Figure 3 As shown, the anti-locking member 5 is also formed with a limit plate 53, and the front end of the limit plate 53, especially the side close to the torsion spring 6, is formed with two second stoppers 531 in the form of two notched steps. In contrast, a locking column 32 is formed at the tail end of the lock tongue 3. The second stopper 531 is to further enhance the anti-locking function of the lock body. Under the premise that the first stopper 52 abuts against the tail end of the reset mechanism 4 so that the reset mechanism 4 cannot retreat, the second stopper 531 abuts against the locking column 32, which can limit the rotation of the lock tongue 3 and prevent the lock tongue 3 from rotating even if the lock tongue 3 cannot retreat. In particular, when the lock tongue 3 contacts the lock box in an inclined state, it will be easily forced back into the lock tongue hole by a large force, and the anti-locking member 5 is easily damaged.

[0034] Furthermore, the second stopper 531 is distributed on the upper and lower sides of the limiting vertical plate 53 .

[0035] like Figure 2 and 4As shown, the reset mechanism 4 adopts a preferred manner, a reset push rod 41 is arranged in the shell 1, a receiving groove 42 is formed at the front end of the reset push rod 41, a first spring 43 is arranged in the receiving groove 42, a steel ball 44 is arranged at the front end of the first spring 43, hinge arms 411 are formed at both ends of the receiving groove 42, a hinge groove 31 is formed on the lock tongue 3 to match the hinge arm 411, the lock tongue 3 is connected to the hinge arm 411 of the reset push rod 41 through the hinge groove 31, and the tail end of the lock tongue 3 is against the steel ball 44, and a second spring 45 is arranged at the rear end of the reset push rod 41, and the second spring 45 enables the reset push rod 41 to have a tendency to push the lock tongue 3 to one side of the lock tongue hole. The accommodating groove 42 of this structure is located at the rear end of the lock tongue 3. Therefore, its first spring 43 and steel ball 44 are both located at the outer end of the lock tongue 3. Compared with the structure of placing them inside the lock tongue 3 in the prior art, the two are easier to disassemble and replace. Therefore, the force applied by the first spring 43 to the steel ball 44 is also easier to adjust. The force can be adjusted according to the needs of use, so that the lock tongue 3 can adapt to the force applied to the door by the external force, avoiding the lock tongue 3 from flipping over when a strong wind blows on the door, causing the door to open.

[0036] Furthermore, the second spring 45 is preferably a conical helical spring. When the conical helical spring is used as a linear spring, it is more stable and less likely to deviate in the direction of the force.

[0037] Furthermore, a guide groove 11 is formed on the housing 1, and guide blocks 412 are formed on the upper and lower sides of the reset push rod 41 to match the guide groove 11. The mutual cooperation between the guide block 412 and the guide groove 11 ensures the movement direction of the reset push rod 41.

[0038] Furthermore, limiting bosses 33 are formed on both sides of the lock tongue 3, and the limiting bosses 33 abut against the lock tongue plate 2. The limiting bosses 33 prevent the lock tongue 3 from being separated from the lock tongue hole.

[0039] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A simplified reversing push-pull lock body, comprising: case; A bolt plate, which is connected to one side of the housing and has a bolt hole; A lock tongue, which is disposed in the housing and can extend out of or retract into the lock tongue hole; A reset mechanism, which is connected to the rear end of the lock tongue so that the lock tongue always has a tendency to pop out toward one side of the lock tongue hole, and the reset mechanism prevents the lock tongue from turning over; The invention is characterized in that a reverse locking member is provided in the housing, one end of the reverse locking member is rotatably arranged on the housing, and the other end is connected to the housing through a torsion spring, and a shifting groove for a shifting block of the lock core to extend into is formed on one side of the reverse locking member, and a first stop portion for limiting the movement of the reset mechanism is formed on the other side; The reset mechanism includes a reset push rod arranged in the housing, a receiving groove is formed at the front end of the reset push rod, a first spring is arranged in the receiving groove, a steel ball is arranged at the front end of the first spring, hinge arms are formed at both ends of the receiving groove, the lock tongue is formed with a hinge groove matched with the hinge arm, the lock tongue is connected with the hinge arm of the reset push rod through the hinge groove, and the tail end of the lock tongue is against the steel ball, and a second spring is arranged at the rear end of the reset push rod, and the second spring makes the reset spring have a tendency to push the lock tongue toward one side of the lock tongue hole; Limiting bosses are formed on both sides of the lock tongue, and the limiting bosses abut against the lock tongue plate.

2. The simplified reversing push-pull lock body according to claim 1, characterized in that: A locking column is formed at the rear end of the locking tongue, and the anti-locking member forms a limiting vertical plate, on which a second stopper matched with the locking column is formed.

3. The simplified reversing push-pull lock body according to claim 2, characterized in that: The second stop is distributed on the upper and lower sides of the limiting vertical plate.

4. The simplified reversing push-pull lock body according to claim 1, characterized in that: The second spring is a conical coil spring.

5. The simplified reversing push-pull lock body according to claim 1, characterized in that: A guide groove is formed on the shell, and guide blocks matching the guide groove are formed on the upper and lower sides of the reset push rod.

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