Telescopic square steel applied to door lock and door lock

Abstract

The utility model relates to telescopic square steel applied to a door lock and the door lock. The telescopic square steel applied to the door lock comprises a first steel body, a second steel body and a telescopic spring, the first steel body comprises a stress part and a transmission part which are fixedly connected, and the cross sectional area of the transmission part is smaller than that of the stress part; the second steel body is provided with a hollow structure, and the second steel body is in sliding connection with the transmission part through the hollow structure; the telescopic spring is arranged on the outer side of the transmission part in a sleeving mode and abuts against the stress part and the second steel body. According to the telescopic square steel applied to the door lock, the length can be flexibly adjusted according to different application scenes of users, and the diversified use requirements of the users can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of door lock square steels, in particular to a telescopic square steel used for door locks and a door lock. Background Art

[0002] Square steel, also known as square rod, plays an important role in the door lock system. It is a structure connected to the square rod. By twisting the square steel, the square rod can be driven to operate synchronously, so as to realize the opening and closing of the lock tongue. This structure is usually used in conjunction with a clutch motor. The clutch motor can accurately control the extension and retraction of the lock tongue through the connection between the square steel and the square rod, so as to achieve the purpose of locking or unlocking. The role of square steel is not limited to simple connection and transmission. It also plays an important role in the smart lock system. For example, in a smart lock, square steel can be combined with an electronic control system to accurately control the opening and closing of the lock tongue by receiving instructions from the control system. This combination makes the smart lock have higher security and convenience, and can meet the security needs of modern homes and commercial places. In the related technology, square steel is generally a solid structure and the length cannot be adjusted. Users need to purchase square steel of a specific length according to the actual usage scenario, which increases the cost of using square steel. Utility Model Content

[0003] Based on this, it is necessary to provide a telescopic square steel and door lock for door locks to address the problem that the length of the square steel cannot be adjusted.

[0004] A telescopic square steel used for door locks, comprising a first steel body, a second steel body and a telescopic spring;

[0005] The first steel body comprises a force-bearing portion and a transmission portion which are fixedly connected, and the cross-sectional area of ​​the transmission portion is smaller than the cross-sectional area of ​​the force-bearing portion;

[0006] The second steel body is provided with a hollow structure, and the second steel body is slidably connected with the transmission part through the hollow structure;

[0007] The telescopic spring is sleeved on the outside of the transmission part and respectively abuts against the force-bearing part and the second steel body.

[0008] The telescopic square steel used in the door lock comprises a first steel body, a second steel body and a telescopic spring; the first steel body comprises a force-bearing part and a transmission part which are fixedly connected, and the cross-sectional area of ​​the transmission part is smaller than the cross-sectional area of ​​the force-bearing part; the second steel body is provided with a hollow structure, and the second steel body is slidably connected with the transmission part through the hollow structure; the telescopic spring is sleeved on the outside of the transmission part, and respectively abuts against the force-bearing part and the second steel body. When the telescopic square steel is in use, since the second steel body is slidably connected with the transmission part through the hollow structure, and the telescopic spring is sleeved on the outside of the transmission part and respectively abuts against the force-bearing part and the second steel body, different deformations of the telescopic spring can make the telescopic square steel have different lengths, so that the telescopic square steel can be applied to a variety of scenarios and enhance the user experience.

[0009] In one of the embodiments, a clamping block is provided on the transmission part, and a through hole matching the clamping block is provided on the surface of the second steel body.

[0010] In one embodiment, the block is hemispherical and the through hole is circular.

[0011] In one embodiment, the through hole includes a first through hole and a second through hole, and the first through hole and the second through hole are symmetrically arranged at two ends of the second steel body.

[0012] In one embodiment, the force-bearing portion and the transmission portion are an integrally formed structure.

[0013] In one of the embodiments, the clamping block is disposed at an end of the transmission portion away from the force-bearing portion.

[0014] In one embodiment, the cross-sections of the force-bearing portion, the transmission portion and the second steel body are all square.

[0015] In one embodiment, the cross-section of the telescopic spring is square.

[0016] A door lock comprises the above-mentioned telescopic square steel applied to the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the telescopic square steel used for door locks of the utility model;

[0018] Figure 2 This is another structural schematic diagram of the telescopic square steel used in the door lock of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the second steel body in the telescopic square steel used for door locks of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a telescopic spring in a telescopic square steel used in a door lock of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the first steel body in the telescopic square steel used for door locks of the utility model;

[0022] Among them, 10 is the first steel body, 20 is the second steel body, 30 is the telescopic spring, 11 is the force-bearing part, 12 is the transmission part, 21 is the hollow structure, 22 is the through hole, 121 is the block, 221 is the first through hole, and 222 is the second through hole. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] The utility model discloses a telescopic square steel applied to a door lock and the door lock.

[0027] like Figures 1 to 5 As shown, the telescopic square steel used for door locks includes a first steel body 10, a second steel body 20 and a telescopic spring 30. The first steel body 10 includes a force-bearing portion 11 and a transmission portion 12 that are fixedly connected, and the cross-sectional area of ​​the transmission portion 12 is smaller than the cross-sectional area of ​​the force-bearing portion 11; the second steel body 20 is provided with a hollow structure 21, and the second steel body 20 is slidably connected to the transmission portion 12 through the hollow structure 21; the telescopic spring 30 is sleeved on the outside of the transmission portion 12, and is respectively supported on the force-bearing portion 11 and the second steel body 20.

[0028] The telescopic square steel used in the door lock comprises a first steel body, a second steel body and a telescopic spring; the first steel body comprises a force-bearing part and a transmission part which are fixedly connected, and the cross-sectional area of ​​the transmission part is smaller than the cross-sectional area of ​​the force-bearing part; the second steel body is provided with a hollow structure, and the second steel body is slidably connected with the transmission part through the hollow structure; the telescopic spring is sleeved on the outside of the transmission part, and respectively abuts against the force-bearing part and the second steel body. When the telescopic square steel is in use, since the second steel body is slidably connected with the transmission part through the hollow structure, and the telescopic spring is sleeved on the outside of the transmission part and respectively abuts against the force-bearing part and the second steel body, different deformations of the telescopic spring can make the telescopic square steel have different lengths, so that the telescopic square steel can be applied to a variety of scenarios and enhance the user experience.

[0029] Among them, a block 121 is provided on the transmission part 12, and a through hole 22 matching the block 121 is provided on the surface of the second steel body 20. Through the mutual cooperation between the block 121 and the through hole 22, the first steel body 10 and the second steel body 20 can be clamped together. Further, the block 121 is an elastic member, which can be pressed down by squeezing the block 121, and the block 121 returns to its original position after the squeezing is released. The shape of the block 121 matches the shape of the through hole 22. Preferably, the block 121 is hemispherical and the through hole 22 is circular.

[0030] The through hole 22 includes a first through hole 221 and a second through hole 222, and the first through hole 221 and the second through hole 222 are symmetrically arranged at both ends of the second steel body 20. Further, the first through hole 221 is arranged at one end of the surface of the second steel body 20 close to the first steel body 10, and the second through hole 222 is arranged at one end of the surface of the second steel body 20 away from the first steel body 10. When the second steel body 20 is clamped with the first steel body 10 through the first through hole 221, the telescopic spring 30 reaches the maximum compression limit; when the second steel body 20 is clamped with the first steel body 10 through the second through hole 222, the telescopic spring 30 reaches the maximum stretching limit. By setting the first through hole 221 and the second through hole 222, the telescopic spring 30 can always be within the normal elastic deformation range to prevent damage caused by excessive deformation. At the same time, by setting the first through hole 221 and the second through hole 222, the first steel body 10 and the second steel body 20 are clamped together, which can also facilitate the transportation of the telescopic square steel used for the door lock.

[0031] The force-bearing part 11 and the transmission part 12 are integrally formed, which can enhance the structural stability of the first steel body 10 and prevent the structural instability of the first steel body 10 from affecting the service life of the telescopic square steel used in the door lock.

[0032] The block 121 is disposed at one end of the transmission part 12 away from the force-bearing part 11. The block 121 is disposed at one end of the transmission part 12 away from the force-bearing part 11, so that the block 121 can better cooperate with the first through hole 221 and the second through hole 222, and control the telescopic length of the telescopic square steel applied to the door lock.

[0033] Among them, the cross-sections of the force-bearing part 11, the transmission part 12 and the second steel body 20 are all square. The cross-sections of the force-bearing part 11, the transmission part 12 and the second steel body 20 are all set to be square, so that the telescopic square steel applied to the door lock can be adapted to most door lock structures on the market, thereby improving the applicable scenarios of the telescopic square steel applied to the door lock. Further, the cross-sectional shape of the telescopic spring 30 matches the cross-sectional shape of the transmission part 12, and preferably, the cross-sectional shape of the telescopic spring 30 is a square.

[0034] Furthermore, the right-angled surfaces of the force-bearing portion 11, the transmission portion 12 and the second steel body 20 are all chamfered to reduce wear and tear, thereby increasing the service life of the telescopic square steel used in the door lock.

[0035] The utility model also discloses a door lock, which comprises the telescopic square steel applied to the door lock. By applying the telescopic square steel applied to the door lock, the application scene of the door lock is wider.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A telescopic square steel used for door locks, characterized in that: It includes a first steel body, a second steel body and a telescopic spring; The first steel body comprises a force-bearing portion and a transmission portion which are fixedly connected, and the cross-sectional area of ​​the transmission portion is smaller than the cross-sectional area of ​​the force-bearing portion; The second steel body is provided with a hollow structure, and the second steel body is slidably connected with the transmission part through the hollow structure; The telescopic spring is sleeved on the outside of the transmission part and respectively abuts against the force-bearing part and the second steel body.

2. The telescopic square steel used for door locks according to claim 1, characterized in that: The transmission part is provided with a clamping block, and the surface of the second steel body is provided with a through hole matching the clamping block.

3. The telescopic square steel used for door locks according to claim 2, characterized in that: The block is hemispherical, and the through hole is circular.

4. The telescopic square steel used for door locks according to claim 3, characterized in that: The through hole includes a first through hole and a second through hole, and the first through hole and the second through hole are symmetrically arranged at two ends of the second steel body.

5. The telescopic square steel used for door locks according to claim 4, characterized in that: The force-bearing part and the transmission part are an integrally formed structure.

6. The telescopic square steel used for door locks according to claim 5, characterized in that: The clamping block is arranged at one end of the transmission part away from the force-bearing part.

7. The telescopic square steel used for door locks according to any one of claims 1 to 6, characterized in that: The cross sections of the force-bearing portion, the transmission portion and the second steel body are all square.

8. The telescopic square steel used for door locks according to claim 7, characterized in that: The cross section of the telescopic spring is a square.

9. A door lock, characterized in that: The door lock comprises the telescopic square steel applied to the door lock as described in any one of claims 1 to 8.

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