Key control assembly of sphygmomanometer

Abstract

The utility model provides a button control assembly of a sphygmomanometer. The button control assembly comprises a base, a display screen, a circuit board and a switch. The display screen and the circuit board are installed on the base, and the back face of the circuit board is exposed out of the lower surface of the base. The switch is rotationally arranged on the base and comprises a pressing part and an extension arm, and the pressing part and the extension arm are located on the two sides of a rotary connecting point of the switch and the base respectively; the switch is rotatably arranged on the base, and the extension arm is additionally arranged on the switch, so that when the switch is pressed, the extension arm can rotate so as to press the circuit board arranged on the base, and the back surface of the circuit board is exposed out of the base and is provided with the signal button so as to be matched with the extension arm to work, thereby replacing a straight-up and straight-down switch control mode. The problem that the circuit board can only be arranged below the switch is solved, so that the problems that installation is not easy, consumables are wasted, space is wasted and the like due to the fact that the circuit board is separated from the panel are solved, and the key control assembly is more compact in overall structure, thinner in thickness and lower in cost.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a button control component of a blood pressure monitor. Background Art

[0002] As people's living standards improve, health has become a focus of everyone's attention. Nowadays, most families have some tools to check their physical health. Blood pressure monitors are one of the more common products. Because of their simple operation, ease of use and suitable size, consumers can measure their own blood pressure at home.

[0003] In existing blood pressure monitors, the switches used for controlling the operation all move straight up and down, that is, the buttons provided on the circuit board need to be located below the switches. In other words, when the switch is provided on the base of the blood pressure monitor, the circuit board cannot be provided close to the base. The circuit board and the base are separated, which results in the circuit board and the display screen being separated as well. A longer cable is required to connect the two, which is not only difficult to install but also consumes more materials. Moreover, the circuit board is provided between the base and the air path module, which makes the blood pressure monitor thicker as a whole and occupies more space. Since the switches and buttons are distributed vertically, the vertical space of the blood pressure monitor is further increased. In addition, the size of the circuit board needs to be increased to accommodate the position of the switch, and more materials are consumed for the circuit board, resulting in waste and high cost. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a button control assembly for a blood pressure monitor, comprising a base, a display screen, a circuit board and a switch; in order to enable the circuit board and the display screen to be installed on the base together, the switch is rotatably set on the base, and an extension arm is added to the switch, so that when the switch is pressed, the extension arm can rotate and press the circuit board set on the base. The back of the circuit board is exposed from the base and a signal button is set to cooperate with the extension arm, thereby replacing the straight up and down switch control mode, solving the problem that the circuit board can only be set below the switch, thereby solving the problems of difficult installation, waste of consumables, waste of space, etc. caused by the separation of the circuit board and the base, making the overall structure of the button control assembly of this scheme more compact, thinner and lower in cost.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A key control assembly for a blood pressure monitor comprises a base, a display screen, a circuit board, and a switch; the display screen and the circuit board are mounted on the base, with the back of the circuit board exposed on the lower surface of the base; the switch is rotatably disposed on the base, the switch comprising a pressing portion and an extension arm, the pressing portion and the extension arm being respectively located on either side of a rotational connection point between the switch and the base; a signal button is provided on the back of the circuit board, the pressing portion being exposed on the upper surface of the base, the end of the extension arm extending below the signal button, and the switch being configured such that when the pressing portion is pressed to rotate the switch, the extension arm presses the signal button.

[0007] In this solution, in order to install the circuit board and the display screen on the base together, the switch is rotatably set on the base, and an extension arm is added to the switch so that when the switch is pressed, the extension arm can rotate and press the circuit board set on the base. The back of the circuit board is exposed from the base and a signal button is set to cooperate with the extension arm. This replaces the straight up and down switch control mode, solves the problem that the circuit board can only be set below the switch, and thus solves the problems of difficult installation, waste of consumables, and waste of space caused by the separation of the circuit board and the base, making the overall structure of the key control component of this solution more compact, thinner and lower in cost.

[0008] Preferably, the switch further includes a rotating portion, located between the pressing portion and the extension arm. A rotating groove is defined in the rotating portion, and a rotating shaft is provided on the base. The rotating groove is engaged with the rotating shaft, and the switch is rotatably mounted on the base via the rotating groove and the rotating shaft. The rotating groove on the rotating portion cooperates with the rotating shaft on the base to allow the switch to be rotatably mounted on the base. The rotational motion of the switch replaces the straight-up and straight-down motion of the switch in existing blood pressure monitors, thereby enabling the circuit board and display to be mounted together on the base, making the circuit board layout more rational and reducing the thickness of the product.

[0009] As an advantage, the opening of the rotating groove is smaller than the diameter of the rotating groove. The smaller opening of the rotating groove enables the rotating shaft to be stuck in the rotating groove shaft, and the switch is not easy to be disengaged from the rotating shaft.

[0010] Preferably, the base has a relief hole, the pressing portion being disposed within the relief hole and exposed from the base within the relief hole. The switch further comprises an elastic portion, one end of which is connected to the lower end of the pressing portion and the other end to the base. The elastic portion is configured to impart a resilient property to the pressing portion. After one end of the elastic portion is connected to the base, it imparts a resilient property to the pressing portion connected thereto. When the pressing portion is pressed downward, the elastic portion does not affect the rotation of the switch on the base. When the pressing portion is released, the elastic portion drives the pressing portion back to its original position.

[0011] Preferably, the elastic portion is elongated, the base is provided with a latch, and the end of the elastic portion where it connects to the base is provided with a socket. The latch is inserted into the socket, and the elastic portion and the base are connected via the latch and socket. In addition to the rotating portion being engaged with the rotating shaft, the switch and the base are connected only by the latch and socket, eliminating the need for screw locking, making assembly simple and quick.

[0012] Preferably, the display screen and the circuit board are mounted on the base in abutting relationship. When the display screen and the circuit board are in abutting relationship, the upper surface of the circuit board can be directly provided with LED lights, while the lower surface (i.e., the back surface) of the circuit board can be provided with signal buttons, sensors and other components, making the structure more compact and more reasonable.

[0013] Preferably, a receiving groove is provided on the upper surface of the base from top to bottom, the circuit board and the display screen are installed in the receiving groove and the circuit board is located below the display screen.

[0014] Preferably, the base also has a through-window in the receiving slot, through which the circuit board is exposed. The slotted and hollowed-out design of the base allows both the circuit board and the display to be mounted thereon, while leaving the back of the circuit board exposed, allowing components on the circuit board to be connected to switches and other operating components.

[0015] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0016] In this solution, in order to install the circuit board and the display screen on the base together, the switch is rotatably set on the base, and an extension arm is added to the switch so that when the switch is pressed, the extension arm can rotate and press the circuit board set on the base. The back of the circuit board is exposed from the base and a signal button is set to cooperate with the extension arm. This replaces the straight up and down switch control mode, solves the problem that the circuit board can only be set below the switch, and thus solves the problems of difficult installation, waste of consumables, and waste of space caused by the separation of the circuit board and the base, making the overall structure of the key control component of this solution more compact, thinner and lower in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the sphygmomanometer in the embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a sphygmomanometer in the prior art;

[0019] Figure 3 is a side view of the sphygmomanometer in an embodiment of the present invention;

[0020] Figure 4 A side view of a sphygmomanometer according to the prior art;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the integrated component in the embodiment of the utility model Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the integrated component in the embodiment of the utility model Figure 2 ;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the integrated component in the embodiment of the utility model Figure 3 ;

[0024] Figure 8 This is a schematic diagram of a three-dimensional structure in which a control component is installed on a base in an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of a three-dimensional structure in which a circuit board and a display screen are mounted on a base in an embodiment of the present utility model;

[0026] Figure 10 This is a schematic diagram of the three-dimensional structure of the base in the embodiment of the utility model Figure 1 ;

[0027] Figure 11 This is a schematic diagram of the three-dimensional structure of the base in the embodiment of the utility model Figure 2 ;

[0028] Figure 12 This is a schematic diagram of the three-dimensional structure of the locking member in the embodiment of the present utility model;

[0029] Figure 13 This is a schematic diagram of the three-dimensional structure of the switch in the embodiment of the utility model Figure 1 ;

[0030] Figure 14 This is a schematic diagram of the three-dimensional structure of the housing in the embodiment of the present utility model;

[0031] Figure 15 This is a schematic diagram of the three-dimensional structure of the switch in the embodiment of the utility model Figure 2 .

[0032] The reference numerals are: housing 1; base 2; main body 21; display screen 3; battery 4; air pump 5; four-way valve 6; deflation valve 7; mounting base 8; circuit board 9; switch 10; pressing portion 101; rotating portion 102; extension arm 103; elastic portion 104; accommodating groove 11; window 12; signal button 13; sensor 14; main air outlet 15; air inlet pipe 16; rapid deflation pipe 17; uniform deflation pipe 18; signal pipe 19; charging port 20; charging Reinforcing rib 22; first mounting slot 23; second mounting slot 24; third mounting slot 25; locking member 26; first limiting slot 27; second limiting slot 28; third limiting slot 29; locking portion 30; engaging portion 31; locking hook 32; buckle 33; first engaging hole 34; second engaging hole 35; avoidance hole 36; rotating slot 37; rotating shaft 38; latch 39; inserting hole 40; positioning hole 41; positioning pin 42; elastic locking buckle 43; connecting ear 44; locking hole 45; connecting slot 46. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0036] The specific implementation of the utility model is as follows:

[0037] like Figure 8 As shown, the utility model provides a key control component of a blood pressure monitor, including a base 2, a display screen 3, a circuit board 9 and a switch 10; the display screen 3 and the circuit board 9 are mounted on the base 2, and the back of the circuit board 9 is exposed on the lower surface of the base 2; the switch 10 is rotatably set on the base 2, and the switch 10 includes a pressing portion 101 and an extension arm 103, and the pressing portion 101 and the extension arm 103 are respectively located on both sides of the rotation connection point between the switch 10 and the base 2; a signal button 19 is provided on the back of the circuit board 9, the pressing portion 101 is exposed on the upper surface of the base 2, and the end of the extension arm 103 extends to below the signal button 19, and the switch 10 is configured so that when the pressing portion 101 is pressed to rotate the switch 10, the extension arm 103 presses the signal button 19.

[0038] In this solution, in order to install the circuit board and the display screen on the base together, the switch is rotatably set on the base, and an extension arm is added to the switch so that when the switch is pressed, the extension arm can rotate and press the circuit board set on the base. The back of the circuit board is exposed from the base and a signal button is set to cooperate with the extension arm. This replaces the straight up and down switch control mode, solves the problem that the circuit board can only be set below the switch, and thus solves the problems of difficult installation, waste of consumables, and waste of space caused by the separation of the circuit board and the base, making the overall structure of the key control component of this solution more compact, thinner and lower in cost.

[0039] The key control component is used in a small blood pressure monitor, such as Figure 1 、 3 , 5, 14, the sphygmomanometer includes an integrated part and a shell 1, the integrated part includes a base 2, an air path module, a control component and a display screen 3, the air path module, the control component and the display screen 3 are all mounted on the base 2, the shell 1 is connected to the base 2 and the air path module and the control component are covered inside the shell 1; the air path module includes a battery 4, an air pump 5, a four-way valve 6 and a deflation valve 7, a mounting seat 8 is integrally formed on the base 2, the battery 4, the air pump 5 and the deflation valve 7 are all mounted on the mounting seat 8, and the four-way valve 6 is integrally formed with the base 2; the control component includes a circuit board 9 and a switch 10, and the base 2 is opened The accommodating groove 11, the circuit board 9 and the display screen 3 are installed in the accommodating groove 11, and the base 2 is further provided with a through window 12 at the accommodating groove 11, and the circuit board 9 is exposed to the base 2 at the window 12 toward the inside of the shell 1; a signal button 13 is provided on the circuit board 9, and the switch 10 is rotatably set on the base 2, and the switch 10 is configured to rotate when the switch 10 is pressed, and the switch 10 presses the signal button 13 from bottom to top; a sensor 14 is also provided on the circuit board 9, and the air pump 5 and the air release valve 7 are connected to the battery 4 through the circuit board 9, and the four-way valve 6 is respectively connected to the air pump 5, the air release valve 7 and the sensor 14.

[0040] like Figure 1-5 As shown in Figure 8, first of all, since the integrated component uses the base 2 as the installation body, the air path module, control component and display screen 3 are all installed on the base 2, so that the shell 1 in this solution no longer has an installation function, but only covers the various modules inside it after being connected to the base 2, and only plays the function of sealing and decoration. Therefore, the size of the shell 1 only needs to be large enough to accommodate each module. Since each module is installed on the base 2, each module is tightly attached to the base 2, and the structure of the integrated component is compact enough, the volume required for the shell 1 will also be smaller; therefore, through the above-mentioned more reasonable layout method, the redundant gaps existing in the prior art are reduced, and after further reducing the volume of the shell 1, the volume of the entire sphygmomanometer is greatly reduced.

[0041] Secondly, the rotational movement of the switch 10 replaces the up and down movement of the switch 10 in the prior art, so that the position of the circuit board 9 is no longer restricted to the bottom of the switch 10, and the circuit board 9 can be installed on the base 2 together with the display screen 3, thereby eliminating the adverse effect of the circuit board 9 being clamped between the base 2 and the air path module on the volume of the blood pressure monitor, making the blood pressure monitor of this solution thinner and smaller.

[0042] After reducing the volume of the blood pressure monitor, the benefits that can be brought are reduced packaging, transportation and production costs, the required packaging volume becomes smaller, and the required consumables such as cables, trachea, etc. are reduced; furthermore, the blood pressure monitor of this solution is more convenient in production and assembly, which can improve production efficiency. Not only is the four-way valve 6 and the base 2 integrally formed, so there is no need to install the four-way valve 6, but the installation positions of the battery 4, the air release valve 7, the air pump 5, the switch 10, the circuit board 9 and the display screen 3 are more concentrated and are all located on the base 2. Therefore, the installation is more convenient and quick, and there are fewer places where screws need to be locked.

[0043] Specifically, if Figure 5-8 As shown, the four-way valve 6 includes a main air outlet 15, which is exposed from the shell 1 and is connected to the inflatable cuff of the sphygmomanometer; the four-way valve 6 is also connected to an air inlet line 16, a quick air deflation line 17, a uniform air deflation line 18 and a signal line 19; the air inlet line 16 is connected to the air pump 5, the quick air deflation line 17 is connected to the air deflation valve 7, and the signal line 19 is connected to the sensor 14; when starting work, the air pump 5 inflates the four-way valve 6 through the air inlet line 16, and the main air outlet 15 inflates the inflatable cuff; during detection, the uniform air deflation line 18 deflates the inflatable cuff at a uniform speed, and the signal line 19 gives the sensor 14 a pressure value; at the end, the air deflation valve 7 is opened, and the gas in the inflatable cuff is released by the air deflation valve 7 after passing through the quick air deflation line 17.

[0044] The battery 4 is a rechargeable battery 4 , and a charging port 20 for charging the battery 4 is also provided on the base 2 . The charging port 20 is fixed to the base 2 by screws, and the charging port 20 is exposed from the housing 1 .

[0045] For the installation of the gas path module:

[0046] The base 2 includes a main body 21 and the mounting base 8, which protrudes downward on the back of the main body 21. The four-way valve 6 integrally formed with the main body 21 is also protruded downward on the back of the main body 21 and the four-way valve 6 is located next to the mounting base 8, that is, the four-way valve 6 is located next to the air pump 5 and the air release valve 7, which can make the length of the air pipe connecting the air pump 5, the air release valve 7 and the four-way valve 6 shorter than that of the existing blood pressure monitor, thereby further saving consumables and reducing costs; a reinforcing rib 22 is provided between the four-way valve 6 and the main body 21 to strengthen the connection strength between the four-way valve 6 and the main body 21; the base 2 and the four-way valve 6 are both plastic parts, which are integrally formed by injection molding; compared with the base 2 of the blood pressure monitor in the prior art, the base 2 of the blood pressure monitor, in addition to being used for installing the display screen 3, also has more functionality. Not only are the mounting base 8 and the four-way valve 6 integrally formed, but it also serves as the installation body of the integrated component, thereby avoiding the problems existing in using the shell 1 as the installation body.

[0047] The mounting base 8 is provided with a first mounting groove 23, a second mounting groove 24 and a third mounting groove 25 in sequence from back to front, and the battery 4, the air pump 5 and the air release valve 7 are also distributed in sequence from back to front, the battery 4 is placed in the first mounting groove 23, the air pump 5 is placed in the second mounting groove 24, and the air release valve 7 is placed in the third mounting groove 25; further, a locking member 26 is provided on the mounting base 8, and the locking member 26 is configured to lock the air pump 5, the air release valve 7 and the battery 4 on the mounting base 8, and the locking member 26 is arranged on the mounting base 8 in the front-to-back direction, and the air pump 5, the air release valve 7 and the battery 4 are locked on the mounting base 8 with a single locking member 26, and the locking member 26 is directly connected to the mounting base 8 without the need for screw connection, thereby simplifying the production and assembly operation; the front of the locking member 26 is provided with a locking member 26, and the locking member 26 is configured to lock the air pump 5, the air release valve 7 and the battery 4 on the mounting base 8. The rearward arrangement can more effectively limit the battery 4, the air pump 5, and the air release valve 7; the locking member 26 includes a first limiting groove 27, a second limiting groove 28, and a third limiting groove 29. The first limiting groove 27 avoids the battery 4 and limits the battery 4 to the first mounting groove 23, the second limiting groove 28 avoids the air pump 5 and limits the air pump 5 to the second mounting groove 24, and the third limiting groove 29 avoids the air release valve 7 and limits the air release valve 7 to the third mounting groove 25; after the battery 4, the air pump 5, and the air release valve 7 are placed in the three mounting grooves of the mounting seat 8, they are limited and locked by the three limiting grooves corresponding to the locking member 26, and the three are fixed in the same area with a reasonable layout and a compact structure, thereby reducing the space occupied by the air path module and reducing the product volume.

[0048] Furthermore, if Figure 6 、 8As shown in Figure 12, the locking member 26 is in the shape of a special-shaped sheet, which includes a locking portion 30 and a clamping portion 31 at both ends. A locking hook 32 and a clamping buckle 33 are provided on the mounting seat 8. A first clamping hole 34 is provided on the locking portion 30, and a second clamping hole 35 is provided on the clamping portion 31; the clamping portion 31 is elastic. When the locking member 26 is installed on the mounting seat 8, the locking hook 32 first enters the first clamping hole 34 and clamps with the locking member 30, and then the locking member 26 is rotated to make the clamping buckle 33 enter the second clamping hole 35 and clamp with the clamping portion 31; the connection between the locking member 26 and the mounting seat 8 does not require screw locking, and only the clamping buckle 33 is required to connect, which further simplifies the production and assembly steps and improves production efficiency.

[0049] like Figure 10 、 11 As shown in Figures 13 and 15, the switch 10 includes a pressing portion 101, a rotating portion 102 and an extended arm 103. The rotating portion 102 is rotatably connected to the base 2. The pressing portion 101 and the extended arm 103 are respectively located on both sides of the rotating portion 102, and the extended arm 103 is located on the side close to the circuit board 9; an avoidance hole 36 is provided on the base 2, and the pressing portion 101 is arranged in the avoidance hole 36. The end of the extended arm 103 extends to the bottom of the signal button 13 of the circuit board 9. When the pressing portion 101 is pressed and rotated downward, the extended arm 103 presses the signal button 13 upward; the rotation of the switch 10 is used to replace the up and down movement of the switch 10, so that the position of the circuit board 9 is no longer restricted to the bottom of the switch 10, so that the circuit board 9 can be installed on the base 2 together with the display screen 3, thereby eliminating the adverse effect of the circuit board 9 on the volume of the sphygmomanometer.

[0050] A rotating groove 37 is provided on the rotating portion 102, and a rotating shaft 38 is provided on the base 2. The rotating groove 37 is clamped on the rotating shaft 38, and the switch 10 is rotatably set on the base 2 through the rotating groove 37 and the rotating shaft 38; the rotating groove 37 on the rotating portion 102 cooperates with the rotating shaft 38 on the base 2 to realize that the switch 10 is rotatably set on the base 2, and the rotating movement of the switch 10 replaces the straight up and down movement of the switch 10 in the existing blood pressure monitor, so that the circuit board 9 and the display screen 3 are installed on the base 2 together, making the layout of the circuit board 9 more reasonable and reducing the thickness of the product; the opening of the rotating groove 37 is smaller than the diameter of the rotating groove 37; the opening of the rotating groove 37 is small, which can make the rotating shaft 38 clamped in the axis of the rotating groove 37, and the switch 10 is not easy to detach from the rotating shaft 38.

[0051] The switch 10 further includes an elastic portion 104, which is in the shape of an elongated strip. One end of the elastic portion 104 is connected to the lower end of the pressing portion 101, and the other end is connected to the base 2. The elastic portion 104 is configured to give the pressing portion 101 a rebound ability. After one end of the elastic portion 104 is connected to the base 2, it gives the pressing portion 101 connected to its other end a rebound ability. When the pressing portion 101 is pressed downward, the elastic portion 104 does not affect the rotation of the switch 10 on the base 2. When the pressing portion 101 is released, the elastic portion 104 does not affect the rotation of the switch 10 on the base 2. 101, the elastic part 104 can drive the pressing part 101 to return to its original position; a pin 39 is provided on the base 2, and a socket 40 is provided at the end where the elastic part 104 is connected to the base 2. The pin 39 is inserted into the socket 40, and the elastic part 104 and the base 2 are connected through the pin 39 and the socket 40; in addition to the connection between the rotating part 102 and the rotating shaft 38, the connection between the switch 10 and the base 2 is only connected through the pin 39 and the socket 40, without the need for screw locking, and the assembly is simple and fast.

[0052] like Figure 8-11 As shown, the display screen 3 and the circuit board 9 are mounted on the base 2 in a close relationship. When the display screen 3 and the circuit board 9 are in close relationship, the upper surface of the circuit board 9 can be directly provided with an LED light, and the lower surface of the circuit board 9, that is, the back surface, can be provided with signal buttons 13, sensors 14 and other components, making the structure more compact and more reasonable; the length and width of the display screen 3 are the same as the length and width of the accommodating groove 11; the display screen 3 and the circuit board 9 are stacked and mounted in the accommodating groove 11, and the display screen 3 is located above the circuit board 9; a positioning hole 41 is provided on the circuit board 9, and a positioning pin 42 is protruding downward from the display screen 3, and the positioning pin 42 enters the positioning hole 41; an elastic lock buckle 43 and a connecting ear 44 are also provided on the display screen 3, and the base 2 is opened on the side of the accommodating groove 11 There are locking holes 45 and connecting grooves 46. When the display screen 3 and the circuit board 9 are installed in the accommodating groove 11, the elastic locking buckle 43 is engaged with the locking hole 45, and the connecting ear 44 enters the connecting groove 46 and is locked by screws. Since the display screen 3 and the accommodating groove 11 have the same size, after the circuit board 9 and the display screen 3 are positioned with each other by the positioning pins 42 and the positioning holes 41, the circuit board 9 and the display screen 3 are limited in the front and back and left and right directions. After the elastic locking buckle 43 is engaged with the locking hole 45, the circuit board 9 and the display screen 3 are limited in the up and down directions. After the connecting ear 44 and the connecting groove 46 are locked by screws, the circuit board 9 and the display screen 3 can be effectively separated from the base 2, so that the circuit board 9 and the display screen 3 can be more stably installed on the base 2.

Claims

1. A button control assembly for a blood pressure monitor, characterized in that: The device comprises a base, a display screen, a circuit board, and a switch; the display screen and the circuit board are mounted on the base, with the back of the circuit board exposed on the lower surface of the base; the switch is rotatably mounted on the base, and comprises a pressing portion and an extension arm, the pressing portion and the extension arm being located on either side of the rotational connection point between the switch and the base; A signal button is provided on the back of the circuit board, a pressing portion is exposed on the upper surface of the base, and the end of the extension arm extends below the signal button. The switch is configured so that when the pressing portion is pressed to rotate the switch, the extension arm presses the signal button.

2. The button control assembly of the blood pressure monitor according to claim 1, characterized in that: The switch also includes a rotating part, which is located between the pressing part and the extension arm. A rotating groove is opened on the rotating part, and a rotating shaft is provided on the base. The rotating groove is clamped on the rotating shaft. The switch is rotatably set on the base through the rotating groove and the rotating shaft.

3. The button control assembly of the blood pressure monitor according to claim 2, characterized in that: The opening of the rotation groove is smaller than the diameter of the rotation groove.

4. The button control assembly of the blood pressure monitor according to claim 1, characterized in that: An avoidance hole is opened on the base, and the pressing part is arranged in the avoidance hole and exposed to the base in the avoidance hole; the switch also includes an elastic part, one end of the elastic part is connected to the lower end of the pressing part, and the other end is connected to the base; the elastic part is configured to give the pressing part a rebound ability.

5. The button control assembly of the blood pressure monitor according to claim 4, characterized in that: The elastic part is in the shape of an elongated strip, a latch is provided on the base, a socket is provided at the end where the elastic part and the base are connected, the latch is inserted into the socket, and the elastic part and the base are connected through the latch socket.

6. The button control assembly of the blood pressure monitor according to claim 1, characterized in that: The display screen and the circuit board are mounted on the base in a manner of being close to each other.

7. The button control assembly of the blood pressure monitor according to claim 1, characterized in that: An accommodating groove is provided on the upper surface of the base from top to bottom. The circuit board and the display screen are installed in the accommodating groove, and the circuit board is located below the display screen.

8. The button control assembly of the blood pressure monitor according to claim 7, characterized in that: The base is further provided with a through window at the receiving groove, and the circuit board is exposed from the base at the window.

Images