Transmission assembly and handle lock

Abstract

The transmission assembly comprises a transmission seat, a balance weight sliding plate, a transmission sliding plate and a gear, the transmission seat is provided with a gear hole, a balance weight sliding groove and a transmission sliding groove, a first receding channel is formed in the middle of the balance weight sliding plate, a first rack is arranged on the side wall of the first receding channel, a second receding channel is formed in the middle of the transmission sliding plate, and a second rack is arranged on the side wall of the second receding channel. A second rack is arranged on the side wall of the second avoiding channel; the first rack and the second rack can be effectively prevented from turning over in the process of rotating and meshing with the gear through cooperation of a counterweight sliding groove and a counterweight sliding plate and cooperation of a transmission sliding groove and a transmission sliding plate, and the stability of the transmission assembly is guaranteed; the counterweight sliding groove and the transmission sliding groove are formed in the axial direction of the gear hole in a spaced mode and matched with a first rack and a second rack which are arranged on the side wall of the first avoiding channel and the side wall of the second avoiding channel, and normal meshing among the transmission sliding plate, the matched sliding plate and the gear can be completed on the premise that the size of the transmission base is not increased.

Description

Technical Field

[0001] This utility model relates to the field of handle lock technology, specifically to a transmission component and a handle lock. Background Technology

[0002] Handle locks are commonly used on glass doors. They consist of a transmission assembly and a lock cylinder. The transmission assembly includes a gear and two racks on either side of it, as well as a counterweight rack. The racks are connected to a linkage rod, the lower end of which is inserted into a hole at the upper end of the bolt on the lock body and connected by a pin. The lock cylinder is connected to one end of the gear. This patent describes how the lock cylinder drives the gear to rotate, causing the gear to move the two racks up and down in opposite directions, thereby locking or unlocking the bolt.

[0003] The existing transmission rack and counterweight rack are both cylindrical with multiple teeth. During the continuous opening and closing of the lock cylinder, the transmission rack and counterweight rack are prone to deflection, which affects the meshing effect between the transmission rack and counterweight rack and the gear, and can easily cause tooth jamming, affecting the user experience. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a transmission component and a handle lock to solve the technical problem that the existing cylindrical rack is prone to deflection and thus jamming.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a transmission component, comprising:

[0006] The transmission base is provided with a gear hole, a counterweight slide groove and a transmission slide groove. The counterweight slide groove and the transmission slide groove are spaced apart along the axial direction of the gear hole, and both the counterweight slide groove and the transmission slide groove pass through both ends of the transmission base along the axial direction of the transmission base. The gear hole communicates with the counterweight slide groove and the transmission slide groove, and the gear hole passes through both sides of the transmission base radially.

[0007] A counterweight slide plate is slidably mounted on the counterweight slide groove. A first clearance channel is provided in the middle of the counterweight slide plate, and a first toothed rack is provided on the side wall of the first clearance channel.

[0008] A transmission slide plate is slidably mounted on the transmission groove. A second clearance channel is provided in the middle of the transmission slide plate, and a second rack is provided on the side wall of the second clearance channel. A connecting part is provided at the bottom of the transmission slide plate, and the connecting part is used to connect the locking tongue.

[0009] A gear is rotatably disposed in the gear hole and located on the first clearance channel and the second clearance channel. The two sides of the gear mesh with the first rack and the second rack, respectively. The gear is used to connect with the lock cylinder.

[0010] The gears rotate under the drive of the lock cylinder, thereby driving the counterweight slide plate and the transmission slide plate to move up and down, which in turn realizes the up and down movement of the lock tongue.

[0011] As a further improvement to the above technical solution, the connecting part is a long bar, and a hinge hole is provided at the end of the long bar away from the transmission seat.

[0012] As a further improvement to the above technical solution, the transmission seat also includes two limiting structures. The two limiting structures are arranged on both sides of the gear hole along the sliding direction of the transmission slide plate, and the limiting structures are located on the first clearance channel and the second clearance channel to limit the sliding position of the counterweight slide plate and the transmission slide plate.

[0013] As a further improvement to the above technical solution, the limiting structure includes a pin hole opened on the transmission seat and a pin inserted into the pin hole. The pin is disposed on the first clearance channel and the second clearance channel to limit the sliding position of the counterweight slide plate and the transmission slide plate.

[0014] As a further improvement to the above technical solution, the two ends of the counterweight slide plate are arc surfaces with a central convex shape.

[0015] As a further improvement to the above technical solution, the two ends of the transmission slide plate are arc surfaces with a central convexity, and the connecting part is located at the highest point of the arc surface at one end of the transmission slide plate.

[0016] As a further improvement to the above technical solution, the transmission seat is also provided with a relief countersunk hole. The relief countersunk hole is coaxially arranged with the gear hole, and the bottom of the relief countersunk hole is connected to the gear hole. The relief countersunk hole is used to cooperate with the lock cylinder sleeve during installation.

[0017] As a further improvement to the above technical solution, the pin hole is connected to the bottom of the clearance countersunk hole.

[0018] As a further improvement to the above technical solution, the inner walls of the counterweight slide and the transmission slide are provided with a wear-resistant coating, and the surfaces of the transmission slide and the counterweight slide are provided with a wear-resistant coating.

[0019] The second technical solution adopted by the present invention to solve its technical problem is:

[0020] A handle lock includes a lock cylinder, a latch, and a transmission component as described above, wherein the lock cylinder is connected to the gear, and the latch is connected to the transmission slide plate.

[0021] The beneficial effects of this utility model are: the cooperation between the counterweight slide groove and the counterweight slide plate, as well as the cooperation between the transmission slide groove and the transmission slide plate, can effectively prevent the first rack and the second rack from flipping during the meshing process with the gear, thus ensuring the stability of the transmission component; and by arranging the counterweight slide groove and the transmission slide groove axially spaced along the gear hole, and cooperating with the first rack and the second rack arranged on the side walls of the first clearance channel and the second clearance channel, the normal meshing of the transmission slide plate, the cooperation slide plate and the gear can be completed without increasing the volume of the transmission seat, thereby reducing production costs. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the transmission assembly according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the transmission assembly (transmission seat omitted) according to an embodiment of the present invention;

[0025] Figure 3 This is a side sectional view of the transmission seat according to an embodiment of the present utility model;

[0026] Figure 4 This is a structural schematic diagram of the handle lock implemented in this utility model.

[0027] Reference numerals: 1. Transmission seat; 11. Gear hole; 12. Counterweight groove; 13. Transmission groove; 14. Limiting structure; 141. Pin hole; 142. Pin; 15. Clearance countersunk hole; 2. Counterweight slide plate; 21. First clearance channel; 22. First rack; 3. Transmission slide plate; 31. Second clearance channel; 32. Second rack; 33. Connecting part; 331. Long bar; 332. Hinge hole; 4. Gear; 101. Transmission seat mounting part; 102. Lock cylinder knob; 103. Lock tongue mounting rod. Detailed Implementation

[0028] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / installations can use accessories such as screws and bolts, or can be directly connected by welding, bonding, etc. The various technical features in this utility model can be combined interactively without contradicting each other.

[0029] Reference Figure 1-3 This utility model provides a transmission assembly, including a transmission base 1, a counterweight slide plate 2, a transmission slide plate 3, and a gear 4. The transmission base 1 has a gear hole 11, a counterweight groove 12, and a transmission groove 13. The counterweight groove 12 and the transmission groove 13 are axially spaced along the gear hole 11, and both the counterweight groove 12 and the transmission groove 13 penetrate both ends of the transmission base 1 axially. The gear hole 11 communicates with the counterweight groove 12 and the transmission groove 13, and the gear hole 11 radially penetrates both sides of the transmission base 1. The counterweight slide plate 2 is slidably mounted on the counterweight groove 12. A first clearance channel 21 is provided in the middle of the counterweight slide plate 2, and the sidewall of the first clearance channel 21 is provided with… The system includes a first rack 22; a transmission slide plate 3 is slidably mounted on the transmission slide groove 13, a second clearance channel 31 is provided in the middle of the transmission slide plate 3, and a second rack 32 is provided on the side wall of the second clearance channel 31; a connecting part 33 is provided at the bottom of the transmission slide plate 3, and the connecting part 33 is used to connect the lock tongue (not shown in the figure); a gear 4 is rotatably mounted in the gear hole 11 and located on the first clearance channel 21 and the second clearance channel 31, and the two sides of the gear 4 mesh with the first rack 22 and the second rack 32 respectively; the gear 4 is used to connect with the lock cylinder; wherein, the gear 4 rotates under the drive of the lock cylinder (not shown in the figure), thereby driving the counterweight slide plate 2 and the transmission slide plate 3 to move up and down, thereby realizing the up and down movement of the lock tongue.

[0030] In this embodiment, the cooperation between the counterweight slide 12 and the counterweight slide plate 2, as well as the cooperation between the transmission slide 13 and the transmission slide plate 3, can effectively prevent the first rack 22 and the second rack 32 from flipping during the meshing of the gear 4, thus ensuring the stability of the transmission assembly.

[0031] The existing rack is a thin cylindrical shape, which can ensure that the transmission seat 1 has a small volume. This solution, by arranging the counterweight slide groove 12 and the transmission slide groove 13 axially spaced along the gear hole 11, and cooperating with the first rack 22 and the second rack 32 arranged on the side wall of the first clearance channel 21 and the second clearance channel 31, can achieve normal meshing of the transmission slide plate 3, the cooperating slide plate 2 and the gear 4 without increasing the volume of the transmission seat 1, effectively preventing the transmission components from being unusable due to the transmission seat 1 being too large.

[0032] Specifically, the connecting part 33 is a long rod 331, and a hinge hole 332 is provided at the end of the long rod 331 away from the transmission seat 1. The hinge hole 332 facilitates the installation of the locking tongue, and the fact that the hinge hole 332 is located at the end of the long rod 331 away from the transmission seat 1 can prevent the transmission seat 1 from interfering with the installation position, making the installation more convenient.

[0033] In this embodiment, refer to Figures 1 to 3 The transmission base 1 further includes two limiting structures 14, which are arranged on both sides of the gear hole 11 along the sliding direction of the transmission slide plate 3. The limiting structures 14 are located on the first clearance channel 21 and the second clearance channel 31 to restrict the sliding position of the counterweight slide plate 2 and the transmission slide plate 3. By adding two limiting structures 14, the sliding of the counterweight slide plate 2 and the transmission slide plate 3 can be simultaneously limited to prevent collisions between the ends of the first clearance channel 21 and the second clearance channel 31 and the gear 4 during the reciprocating sliding process, thus ensuring the service life of the gear 4.

[0034] In this embodiment, refer to Figures 1 to 3 The limiting structure 14 includes a pin hole 141 formed on the transmission seat 1 and a pin 142 inserted into the pin hole 141. The pin 142 is disposed on the first clearance channel 21 and the second clearance channel 31 to limit the sliding position of the counterweight slide plate 2 and the transmission slide plate 3. By providing a pin hole 141 for installing the pin 142, the sliding of the counterweight slide plate 2 and the transmission slide plate 3 can be limited, which has the advantages of simple structure and low production cost.

[0035] Reference Figures 1 to 3The counterweight slide plate 2 has two ends with arc-shaped surfaces that bulge in the middle. The transmission slide plate 3 also has two ends with arc-shaped surfaces that bulge in the middle, and the connecting part 33 is located at the highest point of the arc-shaped surface at one end of the transmission slide plate 3. To ensure smoother sliding of the counterweight slide plate 2 and the transmission slide plate 3, counterweight grooves 12 and 13 need to be provided to fit the counterweight slide plate 2 and the transmission slide plate 3 respectively. That is, the gap between the counterweight slide plate 2 and the counterweight groove 12 is very small, and the gap between the transmission slide plate 3 and the transmission groove 13 is also very small. By providing arc-shaped surfaces at both ends of the counterweight slide plate 2 and the transmission slide plate 3, the installation of the counterweight slide plate 2 and the transmission slide plate 3 can be facilitated, thereby improving production efficiency.

[0036] More preferably, the transmission seat 1 is also provided with a relief countersunk hole 15, which is coaxially arranged with the gear hole 11. The bottom of the relief countersunk hole 15 is connected to the gear hole 11. The relief countersunk hole 15 is used to cooperate with the sleeve of the lock cylinder, making the structure of the handle lock more compact, ensuring a smaller volume, and reducing production costs.

[0037] In this embodiment, refer to Figures 1 to 3 The pin hole 141 is connected to the bottom of the relief countersunk hole 15. By setting the pin hole 141 at the bottom of the relief countersunk hole 15, it is easier to process the pin hole 141. Compared with the arc-shaped surface on the side of the transmission seat 1, the flat surface at the bottom of the relief countersunk hole 15 is easier to process.

[0038] In this embodiment, refer to Figures 1 to 3 The inner walls of the counterweight slide 12 and the transmission slide 13 are provided with wear-resistant coatings, and the surfaces of the transmission slide 3 and the counterweight slide 2 are also provided with wear-resistant coatings. By providing wear-resistant coatings at the locations where the transmission slide 3 and the counterweight slide 2 rub against the transmission seat 1, the service life of the transmission components can be effectively improved.

[0039] An embodiment of this utility model also provides a handle lock, including a lock cylinder (not shown in the figure), a lock tongue (not shown in the figure), and a transmission assembly as described above. The lock cylinder is connected to the gear 4, and the lock tongue is connected to the transmission slide plate 3. Please refer to... Figure 4 In this embodiment, the transmission component is installed in the transmission seat mounting part 101, and then the lock cylinder part extends out of the transmission seat mounting part 101 and is connected to the lock cylinder knob 102. The lock tongue is movably set inside the lock tongue mounting rod 103. By turning the lock cylinder knob 102, the lock tongue can be driven to extend out of the lock tongue mounting rod 103 and insert into the bottom hole to achieve the locking effect through the transmission of the lock cylinder and the transmission component.

[0040] The handle lock of this embodiment, through the cooperation of the counterweight slide groove 12 and the counterweight slide plate 2, and the cooperation of the transmission slide groove 13 and the transmission slide plate 3, can effectively prevent the first rack 22 and the second rack 32 from flipping during the meshing of the gear 4, thus ensuring the stability of the transmission component.

[0041] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A transmission component, characterized in that, include: The transmission base is provided with a gear hole, a counterweight slide groove and a transmission slide groove. The counterweight slide groove and the transmission slide groove are spaced apart along the axial direction of the gear hole, and both the counterweight slide groove and the transmission slide groove pass through both ends of the transmission base along the axial direction of the transmission base. The gear hole communicates with the counterweight slide groove and the transmission slide groove, and the gear hole passes through both sides of the transmission base radially. A counterweight slide plate is slidably mounted on the counterweight slide groove. A first clearance channel is provided in the middle of the counterweight slide plate, and a first toothed rack is provided on the side wall of the first clearance channel. A transmission slide plate is slidably mounted on the transmission groove. A second clearance channel is provided in the middle of the transmission slide plate, and a second rack is provided on the side wall of the second clearance channel. A connecting part is provided at the bottom of the transmission slide plate, and the connecting part is used to connect the locking tongue. A gear is rotatably disposed in the gear hole and located on the first clearance channel and the second clearance channel. The two sides of the gear mesh with the first rack and the second rack, respectively. The gear is used to connect with the lock cylinder. The gears rotate under the drive of the lock cylinder, thereby driving the counterweight slide plate and the transmission slide plate to move up and down, which in turn realizes the up and down movement of the lock tongue.

2. The transmission assembly according to claim 1, characterized in that: The connecting part is a long bar, and a hinge hole is opened at the end of the long bar away from the transmission seat.

3. The transmission assembly according to claim 1, characterized in that: The transmission base also includes two limiting structures, which are arranged on both sides of the gear hole along the sliding direction of the transmission slide plate, and the limiting structures are located on the first clearance channel and the second clearance channel to limit the sliding position of the counterweight slide plate and the transmission slide plate.

4. The transmission assembly according to claim 3, characterized in that: The limiting structure includes a pin hole formed on the transmission seat and a pin inserted into the pin hole. The pin is disposed on the first clearance channel and the second clearance channel to limit the sliding position of the counterweight slide plate and the transmission slide plate.

5. The transmission assembly according to claim 1, characterized in that: The counterweight slide plate has two curved surfaces with a central convex shape at both ends.

6. The transmission assembly according to claim 5, characterized in that: The transmission slide plate has two arc surfaces with a central convex shape at both ends, and the connecting part is located at the highest point of the arc surface at one end of the transmission slide plate.

7. The transmission assembly according to claim 4, characterized in that: The transmission seat is also provided with a clearance countersunk hole, which is coaxially arranged with the gear hole. The bottom of the clearance countersunk hole is connected to the gear hole. The clearance countersunk hole is used to cooperate with the lock cylinder sleeve during installation.

8. The transmission assembly according to claim 7, characterized in that: The pin hole is connected to the bottom of the clearance countersunk hole.

9. The transmission assembly according to claim 6, characterized in that: The inner walls of the counterweight slide and the transmission slide are provided with wear-resistant coatings, and the surfaces of the transmission slide and the counterweight slide are provided with wear-resistant coatings.

10. A handle lock, characterized in that: It includes a lock cylinder, a lock tongue, and a transmission component as described in any one of claims 1-9, wherein the lock cylinder is connected to the gear, and the lock tongue is connected to the transmission slide plate.

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