Lock transmission strip connecting structure convenient to assemble in cashbox drawer
The redesigned lock transmission bar connection structure simplifies assembly by integrating stoppers and a tension spring hole plate, reducing production costs and quality issues in cash box drawers.
Patent Information
- Application Number
- CN202420576008.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The assembly process of the lock transmission bar in cash box drawers is cumbersome due to the need for additional components like pressure plates and screws, and the welding of a circular ring block, which increases production costs and quality issues.
A redesigned lock transmission bar connection structure with integral front and rear stoppers, a mounting groove, and a tension spring hole plate, eliminating the need for additional parts and simplifying assembly by using a T-pin and snap ring for secure connection.
Reduces assembly steps and costs by integrating components, ensuring secure and aesthetic connections without the need for additional parts, thus improving production efficiency and quality.
Smart Images
Figure CN222162277U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cash boxes, in particular to a lock transmission strip connecting structure which is easy to assemble in a cash box drawer. Background Art
[0002] In the drawer of the cash box, a transmission bar is generally used to connect the lock core and the lock hook so that they can be linked. In 2018, our company applied for an unlocking transmission device with a publication number of CN209556636U. A transmission bar is rotatably connected to the bottom wall of the drawer. The front and rear ends of the transmission bar are respectively connected to the lock tongue and the lock hook in the lock core. The end of the transmission bar close to the lock hook is also connected to the ring block on the drawer through a tension spring. The key is inserted into the lock core to rotate the lock tongue, which drives the transmission bar to rotate. The rotating transmission bar rests on the lock hook to open the lock hook, and the drawer can be pulled out. After releasing the key, the transmission bar will automatically reset under the action of the tension spring. However, during the production process, our company found that the assembly process was very cumbersome. First, the transmission bar needs to be restricted to the bottom wall of the drawer by a pressure plate, and the pressure plate is fixed to the bottom wall of the drawer by screws, which increases the screw connection step and requires additional processing or purchase of pressure plates and screws, increasing production costs; secondly, the circular ring block that fixes the tension spring is welded to the drawer, which increases the welding steps, and the volume of this circular ring block is also small, which increases the difficulty of welding and cannot guarantee the welding quality. It is not only easy to affect the appearance, but also easy to fall off due to poor quality. Utility Model Content
[0003] The utility model aims to provide a lock transmission bar connecting structure which is easy to assemble in a cash box drawer and simplifies the assembly process of the transmission bar by redesigning the drawer.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a lock transmission bar connecting structure that is easy to assemble in a cash box drawer, comprising: a drawer and a transmission bar rotatably arranged on the bottom wall of the drawer, a lock core is arranged at the front end of the drawer, a lock hook is arranged at the rear end of the drawer, a mounting groove is arranged at the front end of the drawer bottom wall, a lock tongue in the lock core is located in the mounting groove, a front stopper is integrally formed on the bottom wall of the drawer, the front stopper is blocked on the mounting groove, a rear stopper and a tension spring hole plate are integrally formed at the rear end of the bottom wall of the drawer, a movable groove is left between the rear stopper and the bottom wall of the drawer, the tension spring hole plate extends backward out of the drawer, a connecting part is bent at the front end of the transmission bar, the connecting part passes through the front stopper and then extends into the mounting groove to be connected with the lock tongue, the front stopper does not interfere with the left and right movement of the transmission bar, the rear end of the transmission bar is movably penetrated in the movable groove, and a tension spring is connected between the tension spring hole plate and the transmission bar.
[0005] Furthermore, in the aforementioned lock transmission bar connection structure which is easy to assemble in the cash box drawer, the front baffle bar and the rear baffle bar are of the same height, and the thickness of the transmission bar is smaller than the height of the movable groove.
[0006] Furthermore, in the aforementioned lock transmission bar connection structure that is easy to assemble in the cash box drawer, the rotational connection between the transmission bar and the bottom wall of the drawer is close to the center between the front and rear ends of the drawer.
[0007] Furthermore, the aforementioned cash box drawer has a lock transmission bar connection structure that is easy to assemble, wherein the connection structure between the transmission bar and the bottom wall of the drawer is as follows: a connecting hole is provided on the bottom wall of the drawer, a rotating hole is provided on the transmission bar, the rotating hole on the transmission bar is aligned with the connecting hole on the bottom wall of the drawer up and down, a T-pin is installed between the relatively aligned connecting hole and the rotating hole, the large diameter end of the T-pin rests on the bottom wall of the drawer, a retaining ring groove is provided on the T-pin, and an open retaining spring is clamped in the retaining ring groove.
[0008] Furthermore, the aforementioned lock transmission bar connection structure in the cash box drawer is easy to assemble, wherein the front baffle bar, the rear baffle bar and the tension spring hole plate are all connected to the bottom wall of the drawer through a smooth arc.
[0009] Furthermore, the aforementioned cash box drawer has a lock transmission bar connection structure that is easy to assemble, wherein the installation groove is located in the middle of the front end of the drawer, the installation groove is T-shaped, the lock tongue in the lock core is located in the large end of the installation groove, the front block strip is arranged at the connection between the large end and the small end of the installation groove, the small end of the installation groove is the same width as the installation groove, and the connection part of the transmission bar passes through the small end of the installation groove and extends into the large end of the installation groove to be connected with the lock tongue.
[0010] The advantages of the utility model are: a front stop bar and a rear stop bar are integrally formed on the bottom wall of the drawer, and there is no need to use additional pressure plates and screws to limit the transmission bar during assembly, which reduces production costs and reduces assembly steps; a mounting groove is opened on the bottom wall of the drawer, and a connecting portion is provided at the front end of the transmission bar, which is to facilitate the transmission bar to pass through the front stop bar and extend into the mounting groove to be connected with the lock tongue; a tension spring hole plate is integrally formed at the rear end of the drawer, and there is no need to additionally weld a circular ring block to connect with the tension spring during assembly, which not only reduces the welding steps in the assembly process, but also ensures the strength and aesthetics between the integrally formed tension spring hole plate and the drawer. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a three-dimensional structural schematic diagram of a lock transmission strip connection structure which is easy to assemble in a cash box drawer.
[0012] Figure 2 It is a three-dimensional structural schematic diagram in another direction of the lock transmission strip connection structure which is easy to assemble in the cash box drawer described in the utility model.
[0013] Figure 3 The utility model is a planar structural schematic diagram of a lock transmission strip connection structure which is easy to assemble in a cash box drawer. DETAILED DESCRIPTION
[0014] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.
[0015] like Figure 1 to Figure 3 As shown, the lock transmission bar connection structure that is easy to assemble in the cash box drawer described in the utility model comprises: a drawer 1 and a transmission bar 2 rotatably arranged on the bottom wall of the drawer 1, a connecting hole is opened on the bottom wall of the drawer 1, the connecting hole is close to the center between the front and rear ends of the drawer 1, a rotating hole is opened on the transmission bar 2, the rotating hole on the transmission bar 2 is aligned with the connecting hole on the bottom wall of the drawer 1, a T-shaped pin 11 is set between the relatively aligned connecting hole and the rotating hole, the large diameter end of the T-shaped pin 11 abuts against the bottom wall of the drawer 1, and the T-shaped pin 11 is inserted between the two holes. A snap ring groove is provided on 11, and an open snap ring 12 is clamped in the snap ring groove. A lock core 3 is provided at the front end of the drawer 1. A T-shaped mounting groove 13 is provided at the front end of the bottom wall of the drawer 1. A lock tongue 31 in the lock core 3 is located in the large end of the mounting groove 13. A front stopper 14 is integrally formed on the bottom wall of the drawer 1. The front stopper 14 is blocked at the connection between the large end and the small end of the mounting groove 13. A lock hook is provided at the rear end of the drawer 1. The lock hook is not shown in the figure. The installation position and structure of the lock hook can refer to the publication number: CN2095 56636U is an unlocking transmission device, a rear stopper 15 and a tension spring hole plate 16 are integrally formed at the rear end of the bottom wall of the drawer 1, the tension spring hole plate 16 extends backwards out of the drawer 1, a tension spring 161 is clamped between the tension spring hole plate 16 and the transmission bar 2, the rear stopper 15 is the same height as the front stopper 14, a movable groove is left between the rear stopper 15 and the bottom wall of the drawer 1, the movable groove is the same width as the small end of the mounting groove 13, the height of the movable groove is greater than the thickness of the transmission bar 2, the front stopper 14, the rear stopper 15 and the tension spring hole plate 16 are connected to the drawer through a smooth arc The bottom wall of the drawer 1 is connected, and a connecting portion 21 is bent at the front end of the transmission bar 2. The connecting portion 21 of the transmission bar 2 passes through the small end of the mounting groove 13 and extends into the large end of the mounting groove 13 to be connected to the lock tongue 31. The front baffle 14 is blocked on the connecting portion 21 of the transmission bar 2 and does not interfere with the left and right movement of the transmission bar 2. The rear end of the transmission bar 2 is movably inserted into the movable groove between the rear baffle 15 and the bottom wall of the drawer 1. A round hole is set at the rear end of the transmission bar 2, and a tension spring 161 is connected between the tension spring hole plate 16 and the round hole of the transmission bar 2.
[0016] When the transmission bar 2 is against the bottom wall of the drawer 1, the transmission bar 2 will be against the bottom wall of the drawer 1 in an inclined state under the restriction of the bent connecting part 21. However, the height of the movable groove of the rear baffle 15 is greater than the thickness of the transmission bar 2, and the transmission bar 2 can be inserted obliquely downward into the movable groove of the rear baffle 15, and then the connecting part 21 at the front end of the transmission bar 2 is screwed into the small end of the mounting groove 13, and then the connecting part 21 is connected to the locking tongue 31 in the large end of the mounting groove 13, and the front baffle 14 is blocked on the connecting part 21, and then the transmission bar 2 is adjusted to make the rotating hole on the transmission bar 2 and the connecting hole on the drawer 1 aligned up and down, and the T-pin 11 is installed in the connecting hole. The T-pin 11 passes through the connecting hole and the rotating hole and then extends out of the transmission bar 2, and an open retaining spring 12 is clamped in the retaining ring groove of the T-pin 11, and then the tension spring 161 is fixed between the tension spring hole plate 16 and the transmission bar 2. When the lock core 3 is rotated to unlock the lock hook, since the T-pin 11 between the transmission bar 2 and the drawer 1 is located near the center between the front and rear ends of the drawer 1, the transmission bar 2 is similar to an equal-arm lever under the action of the T-pin 11, so that the force applied by the lock core 3 to the transmission bar 2 and the torque of the transmission bar 2 are in a balanced state. In this way, there is no need to increase the moving distance of the transmission bar 2 to increase the left and right stroke of the transmission bar 2 in the front stop bar 14 in order to reduce the force of twisting the lock core 3, nor is there any need to increase the force of twisting the lock core 3 to reduce the left and right stroke of the transmission bar 2 in the front stop bar 14.
[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.
Claims
1. A lock transmission strip connection structure that is easy to assemble in a cash box drawer, including: The drawer and a transmission bar rotatably arranged on the bottom wall of the drawer, a lock core is arranged at the front end of the drawer, and a lock hook is arranged at the rear end of the drawer, wherein a mounting groove is arranged at the front end of the bottom wall of the drawer, a lock tongue in the lock core is located in the mounting groove, a front stopper is integrally formed on the bottom wall of the drawer, the front stopper is blocked on the mounting groove, a rear stopper and a tension spring hole plate are integrally formed at the rear end of the bottom wall of the drawer, a movable groove is reserved between the rear stopper and the bottom wall of the drawer, the tension spring hole plate extends backwards out of the drawer, a connecting portion is arranged at the front end of the transmission bar, the connecting portion passes through the front stopper and then extends into the mounting groove and is connected with the lock tongue, the front stopper does not interfere with the left and right movement of the transmission bar, the rear end of the transmission bar is movably penetrated in the movable groove, and a tension spring is connected between the tension spring hole plate and the transmission bar.
2. The lock transmission strip connection structure for easy assembly in a cash box drawer according to claim 1, characterized in that: The front baffle bar and the rear baffle bar are of the same height, and the thickness of the transmission bar is smaller than the height of the movable groove.
3. The lock transmission strip connection structure for easy assembly in a cash box drawer according to claim 1, characterized in that: The rotational connection between the transmission bar and the bottom wall of the drawer is close to the center between the front and rear ends of the drawer.
4. The lock transmission strip connection structure for easy assembly in a cash box drawer according to claim 3, characterized in that: The connection structure between the transmission bar and the bottom wall of the drawer is as follows: a connecting hole is opened on the bottom wall of the drawer, and a rotating hole is opened on the transmission bar. The rotating hole on the transmission bar is aligned with the connecting hole on the bottom wall of the drawer up and down. A T-shaped pin is installed between the relatively aligned connecting hole and the rotating hole. The large diameter end of the T-shaped pin abuts against the bottom wall of the drawer. A snap ring groove is arranged on the T-shaped pin, and an open snap ring is clamped in the snap ring groove.
5. The lock transmission strip connection structure for easy assembly in a cash box drawer according to claim 1, characterized in that: The front stop bar, the rear stop bar and the tension spring hole plate are all connected with the bottom wall of the drawer through smooth arcs.
6. The lock transmission strip connection structure for easy assembly in a cash box drawer according to claim 1, characterized in that: The mounting groove is located in the middle of the front end of the drawer, and the mounting groove is T-shaped. The lock tongue in the lock core is located in the large end of the mounting groove, and the front stop bar is arranged at the connection between the large end and the small end of the mounting groove. The small end of the mounting groove is as wide as the mounting groove, and the connecting part of the transmission bar passes through the small end of the mounting groove and extends into the large end of the mounting groove to be connected with the lock tongue.