Transmission connection structure and lock

Abstract

The utility model discloses a transmission connection structure and a lockset, and the transmission connection structure comprises a transmission rod, the bottom side of which is provided with a connection groove; the connecting seat is connected to the top side of the transmission rod, and a mounting hole is formed in the top side of the connecting seat; the connecting piece comprises a connector and a connecting shaft connected to the bottom side of the connector, the outer diameter of the connector is larger than that of the connecting shaft, the connecting shaft downwards penetrates through the mounting hole and the top side of the transmission rod and enters the connecting groove, the connecting shaft is provided with an external thread section, and the inner side wall of the connecting groove is provided with a first internal thread matched with the external thread section; according to the utility model, the transmission rod does not need to be perforated in advance before the transmission rod is mounted in the window sash, and the efficiency and convenience of assembly and connection can be greatly improved after the required mounting position of the connecting seat is positioned according to the required position in field mounting.

Description

Technical Field

[0001] This utility model relates to a lock, and more particularly to a transmission connection structure and a lock. Background Technology

[0002] Door and window hardware includes various locks, such as locking devices. A locking device comprises a transmission mechanism, a transmission rod, and a connecting seat. The transmission mechanism transmits the power from the handle in the window sash to the transmission rod, which in turn moves the connecting seat, thus locking and unlocking the window sash. Currently, installing locks on window sashes requires pre-drilling holes in the transmission rod according to the locking connection position, inserting the transmission rod into the window sash profile, and then connecting the connecting seat to the transmission rod. This transmission connection method is cumbersome and prone to errors during actual installation, such as assembly mistakes, leading to improper installation of the connecting seat and affecting the normal use of the lock. Therefore, a more convenient transmission connection structure is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a transmission connection structure and a lock to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] A transmission connection structure includes: a transmission rod with a connecting groove on its bottom side; a connecting seat connected to the top side of the transmission rod, the top side of the connecting seat having a mounting hole; and a connecting member including a connecting head and a connecting shaft connected to the bottom side of the connecting head, the outer diameter of the connecting head being larger than the outer diameter of the connecting shaft, the connecting shaft passing downward through the mounting hole and the top side of the transmission rod and entering the connecting groove, the connecting shaft having an external thread section, the inner sidewall of the connecting groove having a first internal thread that mates with the external thread section, and the bottom side of the connecting head pressing downward against the connecting seat.

[0006] This technical solution has at least the following beneficial effects: The transmission rod is used to insert into the window sash profile. The transmission rod can move along its length within the window sash profile. When it is necessary to connect the connecting seat and the transmission rod, the connecting shaft of the connector passes downward through the mounting hole of the connecting seat and through the top side of the transmission rod, entering the connecting groove inside the transmission rod. The external thread of the connecting shaft engages with the first internal thread on the inner wall of the connecting groove. The bottom side of the connector presses the connecting seat downward against the transmission rod, thereby achieving the mutual connection and locking of the connecting seat and the transmission rod. In this way, it is not necessary to pre-drill holes in the transmission rod before installing it into the window sash. During on-site installation, the required installation position of the connecting seat can be determined according to the required location. The connector is then inserted into the transmission rod and connected with the first internal thread on the inner side of the connecting groove, thereby achieving the mutual connection of the connecting seat and the transmission rod, greatly improving the efficiency and convenience of assembly and connection.

[0007] As a further improvement to the above technical solution, a second internal thread is provided on the inner wall of the mounting hole, and the external thread section engages with the second internal thread when passing through the mounting hole. When the connecting shaft is inserted into the top side of the transmission rod, the external thread section of the connecting shaft engages with the second internal thread on the inner wall of the mounting hole, which enhances the stability of the connecting part's position within the connecting seat. Rotating the connecting part presses the bottom end of the connecting shaft into the top side of the transmission rod to enter the connecting groove. As the connecting shaft is continuously pressed downwards, the external thread section enters the connecting groove, achieving the engagement between the external thread section and the first internal thread.

[0008] As a further improvement to the above technical solution, the connecting shaft includes a limiting section connected to the top of the external threaded section and a piercing section connected to the bottom of the external threaded section. The connecting head is connected to the top of the limiting section, and a piercing blade is formed at the bottom of the piercing section, extending around the piercing section. The bottom of the connecting shaft has a piercing blade for piercing the top side of the transmission rod. When the connecting shaft is pressed downwards into the top side of the transmission rod, the piercing blade makes a hole in the top side of the transmission rod, thereby facilitating the installation of the connecting shaft within the transmission rod. After the installation of the connecting part is completed, the external threaded section and the first internal thread engage with each other, and the limiting section is located within the mounting hole.

[0009] As a further improvement to the above technical solution, the puncture section is a hollow structure, and the plane at the bottom of the puncture section is inclined to the horizontal plane, forming the puncture blade at the bottom. The hollow puncture section forms the puncture blade at its bottom position by relying on its own wall, and the puncture blade is inclined, with the inclined bottom end forming a sharper tip. When the puncture blade punctures the top side of the transmission rod, the bottom end of the puncture blade first contacts the top side of the transmission rod and penetrates the top wall of the transmission rod. As the pressure of the puncture blade increases, the hole can be opened more smoothly on the top side of the transmission rod along the inclined puncture blade.

[0010] As a further improvement to the above technical solution, the bottom side of the transmission rod has support ribs formed on both sides of the groove opening of the connecting groove, with the two support ribs protruding towards the center of the groove opening. When the piercing blade pierces the top wall of the transmission rod, the waste material generated during the piercing falls downward into the connecting groove. At this time, the two protruding support ribs on the bottom side of the transmission rod can support the waste material, preventing it from falling between the transmission rod and the profile. This helps to prevent the transmission rod from jamming due to waste material getting stuck between the transmission rod and the profile.

[0011] As a further improvement to the above technical solution, the outer wall of the limiting section abuts against the inner wall of the mounting hole. After the connector is installed in place, the outer wall of the limiting section abuts against the inner wall of the mounting hole, which can further limit the connection between the connector and the connector, improve the tightness of the connection between the connector and the connector, and help prevent the connector from falling off the transmission rod due to loosening between the connector and the connector after long-term use.

[0012] As a further improvement to the above technical solution, a storage groove is provided on the top side of the connector, and the mounting hole is located at the bottom of the storage groove, with the connector head located inside the storage groove. The storage groove and the mounting hole form a countersunk hole structure on the top side of the connector. After the connector is installed in place, the bottom side of the connector head abuts against the bottom of the storage groove, so that the connector head and the transmission rod are tightened together, and the storage groove is used to store the connector head, reducing the exposed connector head and improving the overall appearance.

[0013] As a further improvement to the above technical solution, the top of the transmission rod has raised ribs on both sides along the width direction, the bottom side of the connecting seat is provided with a sliding groove, and the two sides of the sliding groove are provided with anti-detachment grooves. The top of the transmission rod extends into the sliding groove, and the two raised ribs are respectively engaged with the two anti-detachment grooves. When the connecting seat and the transmission rod are connected to each other, the connecting seat moves closer to the transmission rod along the length direction of the transmission rod, so that the top of the transmission rod and the raised ribs enter the sliding groove and the anti-detachment groove respectively. By utilizing the cooperation between the raised ribs on both sides of the transmission rod and the anti-detachment grooves on both sides of the sliding groove, the connecting seat can be effectively prevented from directly detaching in the vertical direction, thereby quickly connecting the connecting seat and the transmission rod. At this time, the position of the connecting seat on the transmission rod can be slidably adjusted, and then the connecting piece is inserted and locked in place.

[0014] As a further improvement to the above technical solution, the external thread segment is tapped to form the first internal thread on the inner wall of the connecting groove. When the external thread segment enters the connecting groove, it taps the inner wall of the connecting groove to form the first internal thread that mates with it. This makes the connection between the external thread segment and the inner wall of the connecting groove tighter, further improving the tightness of the connection between the connecting seat and the transmission rod.

[0015] A lock includes a transmission device and the aforementioned transmission connection structure, wherein the transmission device is pulsatorically connected to the transmission rod.

[0016] This technical solution has at least the following beneficial effects: When the handle of the external device rotates, it can transmit power to the transmission device, which in turn drives the transmission rod to move. Since the transmission connection structure of this lock does not require pre-drilling holes in the transmission rod before inserting it into the window sash during assembly, the required installation position of the connecting seat can be determined on-site according to the required location. The transmission rod is then inserted through the connector and connected to the first internal thread on the inner side of the connecting groove, thereby realizing the connection between the connecting seat and the transmission rod, which greatly improves the efficiency and convenience of assembly and connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is an exploded view of the transmission connection structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the transmission connection structure of this utility model installed on the window sash profile.

[0020] Figure 3 This is a perspective view of the connector of this utility model.

[0021] In the attached diagram: 100-transmission rod, 110-supporting rib, 120-protruding rib, 200-connecting seat, 210-second internal thread, 220-storage groove, 230-sliding groove, 240-anti-detachment groove, 310-connecting head, 320-connecting shaft, 321-external thread section, 322-limiting section, 323-piercing section, 324-piercing blade. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figure 1 and Figure 2 A transmission connection structure includes a transmission rod 100, a connecting seat 200, and a connector. The transmission rod 100 has a connecting groove on its bottom side. The connecting seat 200 is connected to the top side of the transmission rod 100, and has a mounting hole on its top side. The connector includes a connector head 310 and a connecting shaft 320. The connecting shaft 320 is connected to the bottom side of the connector head 310. The outer diameter of the connector head 310 is larger than the outer diameter of the connecting shaft 320. The connecting shaft 320 passes downward through the mounting hole and the top side of the transmission rod 100 and enters the connecting groove. The connecting shaft 320 has an external thread section 321. The inner wall of the connecting groove has a first internal thread that mates with the external thread section 321. The bottom side of the connector head 310 presses downward against the connecting seat 200.

[0027] As described above, the transmission rod 100 is used to insert into the window sash profile. The transmission rod 100 can move along its length within the window sash profile. When it is necessary to connect the connecting seat 200 and the transmission rod 100, the connecting shaft 320 of the connector passes downward through the mounting hole of the connecting seat 200 and through the top side of the transmission rod 100, entering the connecting groove inside the transmission rod 100. The external thread section 321 of the connecting shaft 320 engages with the first internal thread on the inner wall of the connecting groove. The bottom side of the connector 310 connects the connecting seat 200... The connector 200 is pressed downward against the transmission rod 100, thereby achieving mutual connection and locking between the connector 200 and the transmission rod 100. This eliminates the need to pre-drill holes in the transmission rod 100 before installing it into the window sash. During on-site installation, the connector 200 can be positioned according to the required location, and then the connector can be inserted into the transmission rod 100 and connected to the first internal thread on the inner side of the connecting groove, thereby achieving mutual connection between the connector 200 and the transmission rod 100, which greatly improves the efficiency and convenience of assembly and connection.

[0028] In actual use, there are multiple connectors. Multiple connectors pass through the connector 200 and connect to the transmission rod 100, thereby locking the connector 200 and the transmission rod 100 together. For example, there are two connectors, which are located on both sides of the connector 200. The two sides of the connector 200 are locked downward to the top side of the transmission rod 100, thereby locking and fixing the connector 200 and the transmission rod 100 together.

[0029] To facilitate the insertion of the connecting shaft 320 through the mounting hole, a hole is made on the top side of the transmission rod 100. In this embodiment, a second internal thread 210 is provided on the inner wall of the mounting hole. When the external thread segment 321 passes through the mounting hole, it engages with the second internal thread 210. When the connecting shaft 320 is inserted into the top side of the transmission rod 100, the external thread segment 321 of the connecting shaft 320 engages with the second internal thread 210 on the inner wall of the mounting hole, which enhances the stability of the connector's position within the connecting seat 200. Rotating the connector presses the bottom end of the connecting shaft 320 into the top side of the transmission rod 100 to enter the connecting groove. As the connecting shaft 320 is continuously pressed downwards, the external thread segment 321 enters the connecting groove, achieving the engagement of the external thread segment 321 with the first internal thread.

[0030] The connecting shaft 320 needs to pierce the top side of the transmission rod 100. This can be achieved by designing a pointed tip at the bottom of the connecting shaft 320, which presses against the top side of the transmission rod 100 to pass through. However, since the external thread section 321 on the outer side of the connecting shaft 320 needs to mate with the inner wall of the mounting hole, the connecting shaft 320 needs to be made longer so that the tip transitions to a vertical external thread section 321, maintaining the mating effect with the inner wall of the mounting hole. Alternatively, the bottom of the connecting shaft 320 can be made vertical, with a cutting edge directly provided at the bottom end. Specifically, for example... Figure 3 As shown, the connecting shaft 320 includes a limiting section 322 connected to the top end of the external thread section 321 and a piercing section 323 connected to the bottom end of the external thread section 321. The connecting head 310 is connected to the top end of the limiting section 322. A piercing blade 324 is formed at the bottom end of the piercing section 323, and the piercing blade 324 extends around the piercing section 323. The bottom end of the connecting shaft 320 has a piercing blade 324 for piercing the top side of the transmission rod 100. When the connecting shaft 320 is pressed downward into the top side of the transmission rod 100, the piercing blade 324 makes a hole in the top side of the transmission rod 100, thereby facilitating the installation of the connecting shaft 320 in the transmission rod 100. After the installation of the connecting part is completed, the external thread section 321 and the first internal thread are connected to each other, and the limiting section 322 is located in the mounting hole.

[0031] There are various structural forms for forming the piercing blade 324. For example, a raised annular cutting edge can be provided at the bottom edge of the piercing section 323. In this embodiment, the piercing section 323 is a hollow structure, and the plane at the bottom of the piercing section 323 is inclined to the horizontal plane. The bottom of the piercing section 323 forms the piercing blade 324. The hollow piercing section 323 forms the piercing blade 324 at its bottom position by relying on its own wall. The piercing blade 324 is inclined, and the inclined bottom end forms a sharper tip. When the piercing blade 324 pierces the top side of the transmission rod 100, the bottom end of the piercing blade 324 first contacts the top side of the transmission rod 100 and penetrates the top wall of the transmission rod 100. As the pressure of the piercing blade 324 increases, the hole can be opened more smoothly along the inclined piercing blade 324.

[0032] When the hollow piercing section 323 abuts against the top opening of the transmission rod 100, it will cut waste material on the top side of the transmission rod 100. If the waste material falls directly out of the connecting groove, it will get stuck between the transmission rod 100 and the window sash profile as the transmission rod 100 slides, affecting the normal sliding of the transmission rod 100. In order to improve the smoothness of the sliding of the transmission rod 100, in this embodiment, the bottom side of the transmission rod 100 is provided with support ribs 110 on both sides of the groove opening of the connecting groove. The two support ribs 110 protrude towards the center of the groove opening and extend along the length of the transmission rod 100. When the piercing blade 324 pierces the top wall of the transmission rod 100, the waste material generated during the piercing falls downward into the connecting groove. At this time, the two supporting ribs 110 protruding from the bottom side of the transmission rod 100 can support the waste material, preventing it from falling between the transmission rod 100 and the profile. This helps prevent the transmission rod 100 from becoming stuck due to the waste material getting stuck between the two parts. In practical applications, the two supporting ribs 110 maintain a gap at the groove opening. The size of this gap needs to be smaller than the diameter of the waste material generated by the piercing section 323 piercing the top side of the transmission rod 100, to ensure that the two supporting ribs 110 can support the waste material; alternatively, the two supporting ribs 110 can extend to abut each other, or the two supporting ribs 110 can be connected as a single unit. This ensures that the supporting ribs 110 support the waste material and prevents it from falling.

[0033] To improve the fit between the connector and the connecting seat 200, in this embodiment, the outer wall of the limiting segment 322 abuts against the inner wall of the mounting hole. After the connector is installed in place, the outer wall of the limiting segment 322 abuts against the inner wall of the mounting hole, which further limits the connection of the connecting seat 200, improves the tightness of the connection between the connector and the connecting seat 200, and helps to prevent the connecting seat 200 from loosening after long-term use, which could cause the connector to detach from the transmission rod 100.

[0034] To better house the entire connector within the connector base 200 and reduce its exposure, in this embodiment, a receiving groove 220 is provided on the top side of the connector base 200. The mounting hole is located at the bottom of the receiving groove 220, and the connector head 310 is located within the receiving groove 220. The receiving groove 220 and the mounting hole form a countersunk hole structure on the top side of the connector base 200. After the connector is installed in place on the connector base 200, the bottom side of the connector head 310 abuts against the bottom of the receiving groove 220, so that the connector head 310 and the transmission rod 100 are mutually tightened, and the receiving groove 220 is used to house the connector head 310, reducing its exposure and improving the overall appearance.

[0035] In the above embodiment, the connecting seat 200 can be fixed to the transmission rod 100 by means of a connecting member. However, in order to better connect and cooperate the connecting seat 200 and the transmission rod 100, a relatively sliding connection structure can be provided between the connecting seat 200 and the transmission rod 100 to facilitate the positioning of the connecting seat 200 on the transmission rod 100. Specifically, the top of the transmission rod 100 has raised ribs 120 on both sides along the width direction, the bottom side of the connecting seat 200 is provided with a sliding groove 230, and the two sides of the sliding groove 230 are provided with anti-detachment grooves 240. The top of the transmission rod 100 extends into the sliding groove 230, and the two raised ribs 120 are respectively connected to the two anti-detachment grooves 240. When the connecting seat 200 is connected to the transmission rod 100, the connecting seat 200 moves along the length of the transmission rod 100 and approaches the transmission rod 100, so that the top of the transmission rod 100 and the protruding rib 120 enter the slide groove 230 and the anti-detachment groove 240 respectively. By utilizing the cooperation between the protruding ribs 120 on both sides of the transmission rod 100 and the anti-detachment grooves 240 on both sides of the slide groove 230, the connecting seat 200 can be effectively prevented from directly detaching in the vertical direction, thereby quickly connecting the connecting seat 200 and the transmission rod 100. At this time, the position of the connecting seat 200 on the transmission rod 100 can be slidably adjusted, and then the connecting piece is inserted and locked and fixed.

[0036] The first internal thread on the inner wall of the connecting groove can be integrally formed during the molding of the transmission rod 100. In this case, the first internal thread is a straight groove formed on the inner wall of the connecting groove. Multiple straight grooves are arranged in the vertical direction. When the external thread section 321 is connected to the inner wall of the connecting groove, it meshes with the multiple straight grooves, thereby locking and fixing it with the transmission rod 100. In order to further improve the tightness of the connection between the external thread section 321 and the connecting groove, the inner wall of the connecting groove can be a plane when the transmission rod 100 is manufactured. When the external thread section 321 enters the connecting groove, the external thread section 321 taps the inner wall of the connecting groove to form the first internal thread. When the external thread section 321 enters the connecting groove, it taps the inner wall of the connecting groove to form the first internal thread that meshes with it. This makes the connection between the external thread section 321 and the inner wall of the connecting groove tighter, further improving the tightness of the connection between the connecting seat 200 and the transmission rod 100.

[0037] A lock includes a transmission device and the aforementioned transmission connection structure, wherein the transmission device is transmittedly connected to the transmission rod 100.

[0038] In this lock, the external handle can transmit power to the transmission device when rotated, which in turn drives the transmission rod 100 to move. Since the transmission connection structure of this lock does not require pre-drilling holes in the transmission rod 100 before inserting it into the window sash during assembly, the required installation position of the connecting seat 200 can be determined on-site according to the required location. The connecting piece is then inserted into the transmission rod 100 and connected to the first internal thread on the inner side of the connecting groove, thereby realizing the connection between the connecting seat 200 and the transmission rod 100, which greatly improves the efficiency and convenience of assembly and connection.

[0039] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A transmission connection structure, characterized in that: include: The transmission rod (100) has a connecting groove on its bottom side; A connecting seat (200) is connected to the top side of the transmission rod (100), and the top side of the connecting seat (200) is provided with a mounting hole; The connector includes a connector head (310) and a connecting shaft (320) connected to the bottom side of the connector head (310). The outer diameter of the connector head (310) is larger than the outer diameter of the connecting shaft (320). The connecting shaft (320) passes downward through the mounting hole, the top side of the transmission rod (100), and enters the connecting groove. The connecting shaft (320) has an external thread section (321). The inner side wall of the connecting groove is provided with a first internal thread that cooperates with the external thread section (321). The bottom side of the connector head (310) presses downward against the connecting seat (200).

2. The transmission connection structure according to claim 1, characterized in that: The inner wall of the mounting hole is provided with a second internal thread (210), and the external thread segment (321) cooperates with the second internal thread (210) when it passes through the mounting hole.

3. The transmission connection structure according to claim 1, characterized in that: The connecting shaft (320) includes a limiting section (322) connected to the top end of the external thread section (321) and a piercing section (323) connected to the bottom end of the external thread section (321). The connector (310) is connected to the top end of the limiting section (322). A piercing blade (324) is formed at the bottom end of the piercing section (323), and the piercing blade (324) extends around the piercing section (323).

4. The transmission connection structure according to claim 3, characterized in that: The puncture segment (323) is a hollow structure, and the plane at the bottom of the puncture segment (323) is inclined to the horizontal plane. The bottom of the puncture segment (323) forms the puncture blade (324).

5. The transmission connection structure according to claim 3, characterized in that: The transmission rod (100) has support ribs (110) formed on both sides of the groove opening of the connecting groove on its bottom side, and the two support ribs (110) protrude towards the center of the groove opening respectively.

6. The transmission connection structure according to claim 3, characterized in that: The outer wall of the limiting segment (322) abuts against the inner wall of the mounting hole.

7. The transmission connection structure according to claim 1, characterized in that: The top side of the connector (200) is provided with a storage groove (220), the mounting hole is provided at the bottom of the storage groove (220), and the connector (310) is located in the storage groove (220).

8. The transmission connection structure according to claim 1, characterized in that: The transmission rod (100) has raised ribs (120) on both sides of its top along the width direction. The bottom side of the connecting seat (200) is provided with a sliding groove (230). Anti-detachment grooves (240) are provided on both sides of the sliding groove (230). The top of the transmission rod (100) extends into the sliding groove (230). The two raised ribs (120) are respectively connected to the two anti-detachment grooves (240).

9. The transmission connection structure according to claim 1, characterized in that: The external thread section (321) forms the first internal thread by tapping the inner wall of the connecting groove.

10. A lock, characterized in that: It includes a transmission device and a transmission connection structure as described in any one of claims 1 to 9, wherein the transmission device is transmissionally connected to the transmission rod (100).

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