Printer paper detection sensor fixing structure and printer

Abstract

The utility model provides a printer paper detection sensor fixing structure and a printer, the printer paper detection sensor fixing structure comprises a fixing support and a sensor, a positioning groove is arranged in the fixing support, the sensor is arranged in the positioning groove, a first positioning part is arranged on the sensor, the size of the cross section of the first positioning part is larger than that of the positioning groove, and the first positioning part is arranged on the fixing support. The position, opposite to the positioning groove, in the fixing support is provided with an abutting part, an elastic part is arranged between the abutting part and the sensor, and the elastic part generates elastic deformation when located between the abutting part and the sensor. An original mode that the sensor is fixed through screws or glue is changed into a mode that the positioning groove and the side face of the sensor are matched to achieve limiting in the plane direction, the elastic piece is matched with the first positioning part and the end face of the positioning groove to achieve limiting in the direction perpendicular to the plane, then six-degree-of-freedom limiting of the sensor is achieved, the assembling process is greatly simplified, and the assembling efficiency is improved. The efficiency is obviously improved, and the condition of falling caused by too high temperature after gluing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a paper detection sensor fixing structure for a printer and a printer. Background Technology

[0002] Most existing printer sensors are fixed by screws or glue using a mounting bracket. Screw fixing usually requires multiple screws to achieve a secure fit, which increases the labor cost of assembly due to repeated manual tightening. Glue fixing is susceptible to falling off due to the influence of ambient temperature. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a paper detection sensor fixing structure for a printer and a printer.

[0004] This utility model is implemented by the following method: a printer paper detection sensor fixing structure, including a fixing bracket and a sensor, wherein the fixing bracket is provided with a positioning groove, the sensor is disposed in the positioning groove, the sensor is provided with a first positioning part, the cross-sectional dimension of the first positioning part is larger than the positioning groove, a top is provided in the fixing bracket opposite to the positioning groove, an elastic element is provided between the top and the sensor, and the elastic element generates elastic deformation when it is located between the top and the sensor.

[0005] Preferably, the elastic element is a spring sheet.

[0006] Preferably, the spring is M-shaped, C-shaped, Z-shaped, or U-shaped.

[0007] Preferably, the positioning groove has a horn groove at the end facing the top, and the cross-sectional size of the horn groove gradually increases from the end facing the positioning groove to the end away from it.

[0008] Preferably, the size of the horn groove at its largest cross-sectional area is smaller than the cross-sectional size of the first positioning part.

[0009] Preferably, the first positioning part is a circuit board connected to the sensor.

[0010] Preferably, the sensor is provided in one or more locations, and the corresponding positioning slots and spring pieces are provided in multiple locations. The fixing bracket is provided with a top abutment at the position opposite to each positioning slot.

[0011] Preferably, the abutment top is an abutment groove located on the fixed bracket opposite to the positioning groove.

[0012] A printer is provided with a printer paper detection sensor fixing structure as described above.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a printer paper detection sensor fixing structure and a printer. Compared with the prior art, this utility model has at least the following technical effects: 1. The original method of fixing the sensor by screws or glue is replaced by a positioning groove and the side of the sensor cooperating to achieve planar direction limitation, while the elastic element cooperates with the first positioning part and the end face of the positioning groove to achieve perpendicular plane direction limitation. The elastic force of the elastic element presses the first positioning part tightly against the end face of the positioning groove, thereby achieving six degrees of freedom limitation of the sensor to achieve sensor fixation. Compared with screw fastening, only the sensor needs to be placed in the positioning groove and the elastic element needs to be placed, greatly simplifying the assembly process, significantly improving efficiency, and avoiding the situation of falling off due to excessive temperature after applying glue. 2. The elastic element is a spring sheet. The deformation of the spring sheet can be placed between the sensor and the top. After deformation, the restoring force acts on the top and the sensor, which can hold the sensor in the positioning groove; moreover, the production of the spring sheet is easier and simpler, which helps to reduce production costs and improve production efficiency. 3. The M-shaped, C-shaped, Z-shaped, and U-shaped spring clips are easily compressed, making them easy to insert into the space between the sensor and the abutment. Once the compressive force is removed, the abutment can be reset to its original position. 4. The horn groove guides the sensor's detection part into the positioning groove, reducing assembly difficulty. 5. Utilizing the sensor's circuit board as the positioning part eliminates the need for a separate first positioning part, effectively reducing production costs. 6. The abutment groove on the abutment provides positioning for the spring clip installation, facilitating quick alignment and installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the state of a printer paper detection sensor fixing structure after being fixed by a C-shaped spring.

[0015] Figure 2 This is a schematic diagram of the cross-sectional state of a printer paper detection sensor fixing structure after being fixed by a C-shaped spring.

[0016] Figure 3 This is a schematic diagram showing the alignment and installation of a printer paper detection sensor fixing structure according to this utility model.

[0017] Figure 4 This is a cross-sectional schematic diagram of the fixing structure for a printer paper detection sensor according to this utility model, showing the sensor being aligned and installed.

[0018] Figure 5 This is a schematic diagram of the paper detection sensor fixing structure of a printer according to this utility model, with the C-shaped spring piece aligned and installed.

[0019] Figure 6This is a cross-sectional schematic diagram of the paper detection sensor fixing structure of a printer according to this utility model, with the C-shaped spring piece aligned and installed.

[0020] Figure 7 This is a schematic diagram showing the alignment and installation of an M-shaped spring in a printer paper detection sensor fixing structure according to this utility model.

[0021] Figure 8 This is a cross-sectional schematic diagram of the fixing structure for a printer paper detection sensor of this utility model, showing the alignment and insertion of an M-shaped spring.

[0022] Figure 9 This is a schematic diagram of the state after the M-shaped spring sheet of the printer paper detection sensor fixing structure of this utility model is fixed.

[0023] Figure 10 This is a schematic diagram of the cross-sectional state of the M-shaped spring sheet fixing the paper detection sensor of the printer according to the present invention.

[0024] The reference numerals in the attached diagram are as follows: 1. Fixed bracket; 11. Positioning groove; 12. Horn groove; 13. Top abutment; 2. Sensor; 21. First positioning part; 3. Elastic element. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Please see Figures 1 to 10 A printer paper detection sensor fixing structure includes a fixing bracket 1 and a sensor 2. The fixing bracket 1 is provided with a positioning groove 11, and the sensor 2 is disposed in the positioning groove 11. The sensor 2 is provided with a first positioning part 21, the cross-sectional dimension of the first positioning part 21 being larger than that of the positioning groove 11. A top abutment 13 is provided in the fixing bracket 1 at a position opposite to the positioning groove 11. An elastic member 3 is provided between the top abutment 13 and the sensor 2. When the elastic member 3 is located between the top abutment 13 and the sensor 2, it undergoes elastic deformation. The original method of fixing the sensor 2 with screws or glue has been changed to a planar positioning method where the positioning groove 11 and the side of the sensor 2 cooperate to achieve planar positioning. The elastic element 3 cooperates with the first positioning part 21 and the end face of the positioning groove 11 to achieve perpendicular positioning. The elastic force of the elastic element 3 presses the first positioning part 21 tightly against the end face of the positioning groove 11, thereby achieving six degrees of freedom positioning of the sensor 2 and fixing it. Compared to screw fastening, which only requires placing the sensor 2 into the positioning groove 11 and placing the elastic element 3, the assembly process is greatly simplified, efficiency is significantly improved, and the risk of detachment due to excessive heat after applying glue is eliminated. The dimensions of the positioning groove 11 match the shape and dimensions of the detection part of the sensor 2.

[0027] Please see Figure 1 , Figure 2 , Figures 5 to 10 Preferably, the elastic element 3 is a spring sheet. Of course, it can also be other elastic elements such as springs. In this embodiment, a spring sheet is selected. The deformation of the spring sheet can be placed between the sensor 2 and the top 13. After deformation, the restoring force acts on the top 13 and the sensor 2, which can hold the sensor 2 at the positioning groove 11. Moreover, the production of the spring sheet is easier and simpler, which helps to reduce production costs and improve production efficiency.

[0028] Please see Figure 1 , Figure 2 , Figures 5 to 10 Preferably, the spring is M-shaped (e.g., Figures 7 to 10 (as shown), or C-shaped (as shown) Figure 1 , Figure 2 , Figure 5 , Figure 6 The spring sheet can be either M-shaped, C-shaped, Z-shaped, or U-shaped. After being squeezed, the spring sheet is compressed and its size is reduced so that it can be inserted between the sensor 2 and the top 13 of the fixed bracket 1. M-shaped, C-shaped, Z-shaped, and U-shaped spring sheets are all easily compressed, making it easy to insert them into the space between the sensor 2 and the top 13. After the squeezing compression force is removed, the top sensor 2 can be reset.

[0029] Please see Figures 1 to 10 Preferably, the positioning groove 11 has a horn groove 12 at the end facing the abutment 13, and the cross-sectional dimension of the horn groove 12 gradually increases from the end facing the positioning groove 11 to the end away from it. The horn groove 12 facilitates the insertion of the detection part of the sensor 2 into the positioning groove 11, reducing assembly difficulty.

[0030] Please see Figures 1 to 10 Preferably, the size of the largest cross-sectional area of ​​the horn groove 12 is smaller than the cross-sectional size of the first positioning part 21. This allows the first positioning part 21 of the sensor 2 to perform planar positioning, preventing the sensor 2 from tilting and ensuring installation accuracy.

[0031] Please see Figures 1 to 10 Preferably, the first positioning part 21 is a circuit board connected to the sensor 2. By using the circuit board of the sensor 2 as the positioning part, it is not necessary to design a separate first positioning part 21, which can effectively reduce production costs.

[0032] Please see Figures 1 to 10 Preferably, there is one or more sensors 2, and there are multiple corresponding positioning slots 11 and spring pieces. The fixing bracket 1 is provided with a top 13 at the position opposite to each positioning slot 11. This facilitates the arrangement of the appropriate number of sensors 2 according to the needs of the product.

[0033] Please see Figures 1 to 10 Preferably, the abutment 13 is an abutment groove located on the fixed bracket 1 opposite to the positioning groove 11. The abutment groove provides a positioning function for the installation of the spring piece, facilitating quick alignment and installation.

[0034] A printer is provided with a paper detection sensor fixing structure as described above. The original method of fixing the sensor 2 with screws or glue is replaced by a positioning groove 11 and the side of the sensor 2 engaging to achieve planar positioning, while an elastic element 3 engages with the first positioning part 21 and the end face of the positioning groove 11 to achieve perpendicular positioning. The elastic force of the elastic element 3 presses the first positioning part 21 tightly against the end face of the positioning groove 11, thereby achieving six degrees of freedom positioning of the sensor 2 and fixing it. Compared to screw fastening, which only requires placing the sensor 2 into the positioning groove 11 and placing the elastic element 3, the assembly process is greatly simplified, efficiency is significantly improved, and the situation of the sensor 2 falling off due to excessive heat after applying glue is avoided.

[0035] The working principle of this utility model is as follows:

[0036] During assembly, first align the detection part of sensor 2 with the speaker slot 12 and insert it (e.g., Figure 3 , Figure 4 (As shown), then place the spring piece at the position adjacent to sensor 2 and the top groove (as shown). Figure 5 , Figure 6 As shown, or Figure 7 , Figure 8 (As shown), then the spring is pushed to deform and squeeze into the position between sensor 2 and the abutment groove. The restoring force of the spring acts on the circuit board of sensor 2, so that the circuit board is completely abutted against the plane where the end face of the horn groove 12 is located, thus completing the connection and fixation between sensor 2 and fixed bracket 1 (as shown). Figure 1 , Figure 2 As shown, or Figure 9 , Figure 10 (As shown).

[0037] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0039] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0040] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A printer paper detection sensor fixing structure, comprising a fixing bracket and a sensor, characterized in that: The fixed bracket is provided with a positioning groove, and the sensor is disposed in the positioning groove. The sensor is provided with a first positioning part, the cross-sectional dimension of the first positioning part is larger than the positioning groove. The fixed bracket is provided with a top opposite to the positioning groove. An elastic element is provided between the top and the sensor. When the elastic element is located between the top and the sensor, it undergoes elastic deformation.

2. The printer paper detection sensor fixing structure according to claim 1, characterized in that: The elastic element is a spring sheet.

3. The printer paper detection sensor fixing structure according to claim 2, characterized in that: The spring clip is M-shaped, C-shaped, Z-shaped, or U-shaped.

4. The printer paper detection sensor fixing structure according to claim 1, characterized in that: The positioning groove has a horn groove at one end facing the top, and the cross-sectional size of the horn groove gradually increases from the end facing the positioning groove to the end away from it.

5. The printer paper detection sensor fixing structure according to claim 4, characterized in that: The size of the largest cross-sectional area of ​​the horn groove is smaller than the cross-sectional size of the first positioning part.

6. The printer paper detection sensor fixing structure according to claim 1, characterized in that: The first positioning part is a circuit board to which the sensor is connected.

7. The printer paper detection sensor fixing structure according to claim 2, characterized in that: The sensor is provided in one or more places, and the corresponding positioning slots and spring pieces are provided in multiple places. The fixed bracket is provided with a top abutment at the position opposite to each of the positioning slots.

8. The printer paper detection sensor fixing structure according to claim 7, characterized in that: The abutment top is an abutment groove located on the fixed bracket opposite to the positioning groove.

9. A printer, characterized in that: The printer paper detection sensor fixing structure is provided as described in any one of claims 1-8.

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