Camera focus shutter pressing intensity detection device and detection method
By designing a rotary detection device, the peripheral resistance test is carried out on the edge of the camera shutter case, which solves the problem of shutter locking caused by the correct focus of the SLR camera, and effectively detects the shutter pressing strength and improves the camera performance.
Patent Information
- Application Number
- CN202210344240.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-03-31
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2042-03-31
AI Technical Summary
When using a SLR camera, if the camera is not focused correctly, the shutter will be locked and cannot be pressed, resulting in the inability to take clear photos. A shutter case for modified cameras requires a touch pressure strength test to avoid performance degradation.
A camera focus shutter pressing strength detection device is designed, and the edges of the shutter case are tested by rotary detection device to simulate user pressing habits and improve detection accuracy.
Through this detection device, the shutter pressing intensity can be effectively detected, ensuring that the camera can shoot normally when the focus is correct, and the stability and accuracy of the detection are improved.
Smart Images

Figure CN114813065B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of parts detection, and in particular relates to a camera focus shutter pressing intensity detection device and a detection method thereof. Background Art
[0002] SLR cameras are generally set to autofocus. When taking pictures, if the camera is not focused correctly, the shutter will be locked and cannot be pressed. Therefore, when using a SLR camera, you must wait until the focus is correct before pressing the shutter, so that you can take clear pictures. SLR digital camera refers to a single-lens reflex digital camera. After modifying the camera or adding accessories, the added parts need to be tested to avoid reducing the performance of the camera. For example, when modifying the camera shutter, the modified shutter needs to be tested for contact pressure strength. Summary of the invention
[0003] The purpose of the present invention is to provide a camera focus shutter pressing strength detection device and a detection method thereof, by using a rotating detection device to perform peripheral interference test on the edge of the case according to people's habits of shutter pressing, thereby improving the accuracy of parts detection.
[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0005] The present invention relates to a camera focus shutter pressing strength detection device and a detection method thereof, comprising a detector: the detector comprises a mounting tube and a bottom ring, a motor is mounted in the mounting tube, the bottom ring has an inner ring, a circle of limiting openings is arranged at the inner edge of the inner ring, a notch is opened on the limiting opening, an elastic member is mounted in the limiting opening, a push rod is arranged on the elastic member, and the rod part of the push rod slides and fits the notch; a circle of fan-shaped driving blocks is mounted on the inner ring, one fan-shaped driving block corresponds to one elastic member, and the fan-shaped driving block has an arc surface; a driving rod is mounted at the end of the motor, and a bearing is arranged at the end of the driving rod; the outer ring of the bearing rolls and drives the fan-shaped driving block.
[0006] Furthermore, the fan-shaped drive block gradually increases in height from both ends to the middle, and a groove and a pair of limit rods are provided on the other surface of the fan-shaped drive block. The two limit rods are respectively located on the two end sides of the groove, one end of the elastic member is engaged in the groove, and a circle of limit holes is provided on the inner ring, and the limit rods are slidably engaged with the limit holes.
[0007] Furthermore, the driving rod comprises a sleeve and a connecting rod, one end of the connecting rod is arranged on the axial surface of the sleeve, and the inner ring of the bearing is sleeved on the other end of the connecting rod.
[0008] Furthermore, an electric telescopic rod is installed on the detector, one end of the electric telescopic rod is provided with a push rod, and the other end of the electric telescopic rod is fitted in the sleeve.
[0009] Furthermore, it also includes a supporter and a suspension head, the detector is installed below the suspension head, the top rod of the detector faces the substrate, the substrate is installed on the supporter, and the suspension head and the substrate are both installed on the back plate.
[0010] Furthermore, the suspension head includes a crossbar and a vertical bar, the vertical bar is fixed to the end of the crossbar through a positioning flange, and a mounting groove is provided on the back plate, and the end of the crossbar is fixed in the mounting groove.
[0011] Furthermore, the support device includes a support block, a clamping plate and a support plate frame, the clamping plate and the support plate frame are both arranged on the support block, the base plate is fixed to the support plate frame by positioning bolts, the edge of the base plate has a notch plate, the notch plate is fitted on the clamping plate, and a reinforcement block is arranged on the support block, and two pairs of reinforcement blocks are arranged, which are respectively located on the upper and lower sides of the clamping plate.
[0012] Furthermore, the support plate frame is in a "U" shape, with transverse grooves at both ends of the support plate frame, a stepped hole at the bottom of the transverse groove, an internal thread ring and an external thread ring on the bottom surface of the base plate, one end of the positioning bolt has two sections of reverse stepped threads, the thin shaft end of the stepped thread is fitted in the internal thread ring, the other section of the stepped thread is fitted with a stepped thread sleeve, and the other section of the stepped thread sleeve is fitted in the external thread ring.
[0013] Furthermore, the base plate includes a plate body, a step groove is provided on the plate body, a clamping device is installed on the step groove, the clamping device includes a "T"-shaped plate and a clamping plate, a pair of clamping strips are provided on the "T"-shaped plate, clamping grooves are opened on the facing surfaces of the clamping strips, one edge of the clamping plate has a clamping half ring, and the other edge is provided with a pair of elastic strips, the clamping plates are arranged in pairs, and the elastic strips are fitted in the clamping grooves.
[0014] A camera focus shutter pressing strength detection method is provided, using the above-mentioned camera focus shutter pressing strength detection device for detection, comprising the following steps:
[0015] Clamp the parts to be tested: install the button-type shutter mounting button on the top contact of the cylinder of the touch-pressure switch, and fix the clamping device under the detector by buckling the two clamping plates on the cylinder;
[0016] Edge touch detection: start the motor, the driving rod rotates around the fan-shaped driving block to form a ring, and intermittently presses down along the edge of the installed key through the reset of the elastic member;
[0017] Middle touch and pressure: start the telescopic rod and press the middle of the added button intermittently;
[0018] Test, after every 50 presses, conduct a power-on test on the touch pressure switch.
[0019] The present invention has the following beneficial effects:
[0020] The present invention uses an integrated support block, a clamping plate and a support plate frame as support members and clamps to improve the stability of the detection device, and the detection device is of a double stable design: the support plate frame is used to support and lift the substrate, and is auxiliary fixed by the clamping plate, and double threads are used for reinforcement when supporting the substrate, that is, the positioning bolt is rotated downward from the end without a threaded section to fit in the small hole section of the step hole, and then the step thread sleeve is fitted on the step thread end, and then the substrate is covered on the support plate frame, the internal thread ring fits the step thread end, and the external thread ring corresponds to the step thread sleeve, that is, the outer ring surface of the step thread sleeve is provided with threads corresponding to the external thread ring, when the motor drives the driving rod to rotate, the bearing rotates against the upper surface of the circled fan-shaped driving block, and presses down the fan-shaped driving block, so that the spherical end of the push rod intermittently touches the edge of the part to be tested, and the detector is also equipped with an electric telescopic rod, and the electric retractable rod intermittently presses the middle part of the part to be tested when working, so that the detection of the shutter case is more complete.
[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0023] Figure 1 It is a structural schematic diagram of a camera focus shutter pressing intensity detection device;
[0024] Figure 2 It is a structural schematic diagram of a camera focus shutter pressing intensity detection device;
[0025] Figure 3 It is a structural schematic diagram of a camera focus shutter pressing intensity detection device;
[0026] Figure 4 It is a schematic diagram of the structure of the back plate and the support block;
[0027] Figure 5 It is a structural schematic diagram of the suspension head;
[0028] Figure 6 It is a structural schematic diagram of the suspension head;
[0029] Figure 7 It is a structural schematic diagram of the motor and the driving rod;
[0030] Figure 8 is a schematic diagram of the structure of the elastic member;
[0031] Fig. 9 It is a structural schematic diagram of a sector drive block;
[0032] Fig.10 It is a schematic diagram of the structure of the fan-shaped drive block;
[0033] Fig.11 is a schematic diagram of the structure of the substrate;
[0034] Fig.12 is a schematic diagram of the structure of the substrate;
[0035] Fig.13 A schematic diagram of the structure for clamping the camera focus shutter button;
[0036] Fig.14 A schematic diagram of the structure of the base of the clamping device;
[0037] Fig.15 is a schematic diagram of the structure of the splint;
[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0039] 1. Suspension head; 2. Detector; 3. Base plate; 4. Support; 5. Back plate; 6. Support block; 7. Clamping device; 8. Part to be tested; 101. Positioning flange; 102. Cross bar; 201. Mounting tube; 202. Motor; 203. "U"-shaped hanging plate; 204. Top plate; 205. Bottom ring; 206. Inner ring; 207. Fan-shaped driving block; 208. Driving rod; 209. Top rod; 210. Bearing; 211. Sleeve; 212. Limit hole; 213. Limit opening; 214. Notch; 215. Elastic Parts; 216, spring pad; 217, fan-shaped plate; 218, limit rod; 219, groove; 220, arc surface; 301, plate body; 302, notched plate; 303, internal thread ring; 304, external thread ring; 305, stepped groove; 401, support plate frame; 402, reinforcement block; 403, clamping plate; 404, transverse groove; 405, stepped hole; 501, mounting groove; 701, "T"-shaped plate; 702, clamping plate; 703, clamping strip; 704, groove; 705, clamping half ring; 706, elastic strip. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0042] See also Figure 1-15 As shown, the present invention is a camera focus shutter pressing strength detection device, which tests the usage strength of the pressing part of the camera focus shutter by pressing. For example, the button-type shutter additional button is the part to be tested 8 in the present invention, and the button-type shutter button is assembled on the cylindrical top contact of the touch switch.
[0043] Detects common presses used by cameras, such as edge presses and center presses.
[0044] Among them, the shutter case tester uses the detector 2 to perform a touch press.
[0045] The supporting devices for carrying the substrate 8 are all installed on the back plate 5 .
[0046] Specifically, the support device 4 includes a support block 6, a clamping plate 403 and a support plate frame 401, wherein the clamping plate 403 and the support plate frame 401 are both arranged on the support block 6. Preferably, the support block 6, the clamping plate 403 and the support plate frame 401 are designed as an integrated unit, and the support plate frame 401 is used to support and lift the substrate 3, and is assisted in fixing by the clamping plate 403.
[0047] The base plate 3 is fixed on the supporting plate frame 401 by means of positioning bolts.
[0048] The support plate frame 401 is "U" shaped, with transverse grooves 404 at both ends of the support plate frame 401, and a stepped hole 405 at the bottom of the transverse groove 404. The upper hole section of the stepped hole 405 has a larger hole diameter than the lower hole section, and the lower hole section has a thread.
[0049] The bottom surface of the substrate 3 is provided with an internal thread ring 303 and an external thread ring 304, and the internal thread ring 303 and the external thread ring 304 are arranged correspondingly, and two groups are arranged on the lower surface of the substrate 3, respectively corresponding to the two ends of the "U"-shaped support plate frame 401, wherein one end of the positioning bolt has two sections of reverse stepped thread ends, and the middle part has a thread matching the lower hole section, the thin shaft end of the stepped thread end is matched in the internal thread ring 303, and the other section of the stepped thread is matched with a stepped thread sleeve, and the other section of the stepped thread sleeve is matched in the external thread ring 304.
[0050] During installation, the positioning bolt is rotated downward from the end without a threaded section to fit into the small hole section of the stepped hole 405, and then the stepped thread sleeve is fitted onto the stepped threaded end. Subsequently, the base plate 3 is covered on the support plate frame 401, and the internal thread ring 303 fits the stepped threaded end, and the external thread ring 304 corresponds to the stepped thread sleeve, that is, the outer ring surface of the stepped thread sleeve is provided with a thread corresponding to the external thread ring 304, and is reinforced by double threads.
[0051] The edge of the substrate 3 has a notch plate 302, and when the substrate 3 is covered on the support plate frame 401, the notch plate 302 is matched on the clamping plate 403. A reinforcing block 402 is arranged on the support block 6. The reinforcing block 402 is provided with two pairs, which are respectively located on the upper and lower sides of the clamping plate 403. The clamping plate 403 is reinforced by the reinforcing block 402 to further improve the stability of the clamping plate 403.
[0052] The substrate 3 is used to support the part 8 to be tested.
[0053] Specifically, the substrate 3 includes a plate body 301, a stepped groove 305 is provided on the plate body 301, a clamping device 7 is installed on the stepped groove 305, and the part to be tested 8 is clamped by the clamping device 7. After clamping the part to be tested 8, other clamping devices 7 can be arranged in sequence on the stepped groove 305.
[0054] Among them, the clamping device 7 includes a "T"-shaped plate 701 and a clamping plate 702. A pair of clamping strips 703 are arranged on the "T"-shaped plate 701. Clamping grooves 704 are opened on the facing surfaces of the clamping strips 703. One edge of the clamping plate 702 has a clamping half ring 705, and the other edge 906 is provided with a pair of elastic strips 706. The clamping plates 702 are arranged in pairs, and the elastic strips 706 are matched in the clamping groove 704. When clamping the part 8 to be measured, the two clamping plates 702 are buckled together, that is, the two clamping half rings 705 form a clamping ring to clamp the part 8 to be measured, and the elastic strips 706 on both sides are matched in the clamping groove 704 after compression.
[0055] Specifically, during the process of testing the part 8 to be tested, the pressure touch test is performed by the top rod 209 that can move up and down, that is, the detector 2 is installed below the suspension head 1, the top rod 209 of the detector 2 faces the substrate 3, the substrate 3 is installed on the support 4, and the suspension head 1 and the substrate 3 are both installed on the back plate 5.
[0056] Among them, the detector 2 includes a mounting tube 201 and a bottom ring 205. The side of the mounting tube 201 is an open design for the installation and fixation of the motor 202. The motor 202 is installed in the mounting tube 201, and the tail bottom of the motor 202 is on the top plate 204 of the mounting tube 201. A "U"-shaped 203 hanging plate is provided on the top of the mounting tube 201. The detector 2 is installed on the suspension head 1 through the "U"-shaped hanging plate 203. Among them, the suspension head 1 includes a cross bar 102 and a vertical bar 101. The back plate 5 is provided with a mounting groove 501. The end of the cross bar 102 is fixed in the mounting groove 501. The vertical bar 101 is fixed to the end of the cross bar 102 through a positioning flange 101. A groove is opened on one side of the lower end of the vertical bar 101, and the "U"-shaped hanging plate 203 is hung in the groove and fixed by bolts. Preferably, the vertical bar 101 is a telescopic rod.
[0057] Further:
[0058] The bottom ring 205 has an inner ring 206, and a circle of limiting openings 213 are provided at the inner edge of the inner ring 206. A notch 214 is opened on the limiting opening 213. Preferably, the circle limiting opening 213 and the notch are both fan-shaped openings, and the limiting opening 213 and the notch 214 form a fan-shaped step. An elastic member 215 is installed in the limiting opening 213, wherein the elastic member 215 is composed of a middle layer spring pad 216 and fan-shaped plates 217 on the upper and lower sides.
[0059] A push rod 209 is arranged on the elastic member 215, wherein the non-ball end of the push rod 209 passes through the lower layer sector plate 217 and the middle layer spring pad 216 and is connected to the upper layer sector plate 217, and the rod portion of the push rod 209 slides and fits the notch 214; a circle of sector drive blocks 207 are installed on the inner ring 206, one sector drive block 207 corresponds to one elastic member 215, and the sector drive block 207 has an arc surface 220; the sector drive blocks 207 are arranged in a circle to form a high The motor 202 has a low-undulating annular surface, and a driving rod 208 is installed at the end of the driving rod 208, and a bearing 210 is provided at the end of the driving rod 208; the outer ring of the bearing 210 rolls and drives the fan-shaped driving block 207. In a natural state, one end of the top rod 209 with a spherical end extends out of the bottom ring 205 and has a gap with the part to be tested. The driving rod 208 has a sleeve 211 and a connecting rod, one end of the connecting rod is set on the axial surface of the sleeve 211, and the inner ring of the bearing 210 is sleeved on the other end of the connecting rod.
[0060] That is, when the motor 202 drives the driving rod 208 to rotate, the bearing 210 rotates along the upper surface of the circled fan-shaped driving block 207 and presses down the fan-shaped driving block 207, so that the spherical end of the push rod 209 intermittently contacts the edge of the part to be tested 8.
[0061] In addition, the detector 2 is also equipped with an electric telescopic rod, one end of which is provided with a top rod 209, and the other end of the electric telescopic rod is fitted in the sleeve 211. When the electric telescopic rod is working, it intermittently presses the middle part of the part to be tested 8.
[0062] The fan-shaped drive block 207 gradually increases in height from both ends to the middle. A groove 219 and a pair of limit rods 218 are provided on the other surface of the fan-shaped drive block 207. The two limit rods 218 are respectively located at the two end sides of the groove 219. One end of the elastic member 215 is engaged in the groove 219. A circle of limit holes 212 is provided on the inner ring 206. The limit rods 218 are slidably engaged with the limit holes 212. The cooperation between the limit rods 218 and the limit holes 212 allows the fan-shaped drive block 207 to only move up and down.
[0063] A camera focus shutter pressing strength detection method is provided, which uses the above-mentioned camera focus shutter pressing strength detection device for detection, and comprises the following steps.
[0064] Clamping the part to be tested 8: Install the button-type shutter mounting button on the top contact of the cylinder of the touch-pressure switch, and install and fix the clamping device 7 below the detector 2 by buckling the two clamping plates 702 on the cylinder.
[0065] Edge touch detection: start the motor 202, the driving rod 208 rotates around the fan-shaped driving block 207 to form a ring, and intermittently presses down along the edge of the additional key through the reset of the elastic member 215. Preferably, four fan-shaped driving blocks 207 are provided, that is, the top rod 209 performs four edge touch detections for each rotation of the motor 202;
[0066] Middle touch and pressure: start the telescopic rod and press the middle of the added button intermittently;
[0067] Test, after every 50 presses, conduct a power-on test on the touch pressure switch.
[0068] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0069] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A camera focus shutter pressing intensity detection device, characterized in that: include: The detector (2) comprises a mounting tube (201) and a bottom ring (205), wherein a motor (202) is mounted in the mounting tube (201), the bottom ring (205) comprises an inner ring (206), a circle of limiting openings (213) is arranged at the inner edge of the inner ring (206), a notch (214) is formed on the limiting opening (213), an elastic member (215) is mounted in the limiting opening (213), a push rod (209) is arranged on the elastic member (215), and a rod portion of the push rod (209) is slidably matched with the notch (214); A circle of sector-shaped driving blocks (207) is installed on the inner ring (206), one sector-shaped driving block (207) corresponds to one elastic member (215), and the sector-shaped driving block (207) has an arc surface (220); A driving rod (208) is installed at the end of the motor (202), and a bearing (210) is provided at the end of the driving rod (208); The outer ring of the bearing (210) rollingly drives the sector-shaped driving block (207); The fan-shaped driving block (207) gradually increases in height from both ends to the middle. A groove (219) and a pair of limiting rods (218) are provided on the other surface of the fan-shaped driving block (207). The two limiting rods (218) are respectively located at both ends of the groove (219). One end of the elastic member (215) is fitted in the groove (219). A circle of limiting holes (212) is provided on the inner ring (206). The limiting rods (218) are slidably fitted in the limiting holes (212). The driving rod (208) comprises a sleeve (211) and a connecting rod, one end of the connecting rod is arranged on the axial surface of the sleeve (211), and the inner ring of the bearing (210) is sleeved on the other end of the connecting rod; The detector (2) is also equipped with an electric telescopic rod, one end of which is provided with a push rod (209), and the other end of which is fitted in a sleeve (211); It also includes a support (4) and a suspension head (1), the detector (2) is installed below the suspension head (1), the top rod (209) of the detector (2) faces the substrate (3), the substrate (3) is installed on the support (4), and the suspension head (1) and the substrate (3) are both installed on the back plate (5).
2. A camera focus shutter pressing intensity detection device according to claim 1, characterized in that: The suspension head (1) comprises a crossbar (102) and a vertical bar (101); the vertical bar (101) is fixed to the end of the crossbar (102) via a positioning flange; a mounting groove (501) is provided on the back plate (5); and the end of the crossbar (102) is fixed in the mounting groove (501).
3. A camera focus shutter pressing intensity detection device according to claim 2, characterized in that: The support device (4) comprises a support block (6), a clamping plate (403) and a support plate frame (401); the clamping plate (403) and the support plate frame (401) are both arranged on the support block (6); the base plate (3) is fixed to the support plate frame (401) by means of positioning bolts; the edge of the base plate (3) has a notch plate (302); the notch plate (302) is matched with the clamping plate (403); a reinforcing block (402) is arranged on the support block (6); two pairs of reinforcing blocks (402) are arranged respectively on the upper and lower sides of the clamping plate (403).
4. A camera focus shutter pressing intensity detection device according to claim 3, characterized in that: The support plate frame (401) is U-shaped, and transverse grooves (404) are formed at both ends of the support plate frame (401). The bottom of the transverse groove (404) has a stepped hole (405). The bottom surface of the base plate (3) is provided with an internal thread ring (303) and an external thread ring (304). One end of the positioning bolt has two sections of reverse stepped threads, and the thin shaft end of the stepped thread is matched in the internal thread ring (303). The other end of the stepped thread is matched with a stepped thread sleeve, and the other end of the stepped thread sleeve is matched in the external thread ring (304).
5. A camera focus shutter pressing intensity detection device according to claim 4, characterized in that: The base plate (3) comprises a plate body (301), a stepped groove (305) is provided on the plate body (301), a clamping device (7) is installed on the stepped groove (305), the clamping device (7) comprises a T-shaped plate (701) and a clamping plate (702), a pair of clamping strips (703) are provided on the T-shaped plate (701), clamping grooves (704) are provided on the facing surfaces of the clamping strips (703), one edge of the clamping plate (702) has a clamping half ring (705), and the other edge (906) is provided with a pair of elastic strips (706), the clamping plates (702) are arranged in pairs, and the elastic strips (706) are matched in the clamping grooves (704).
6. A method for detecting the pressing strength of a camera focus shutter, using a camera focus shutter pressing strength detection device as claimed in claim 5 for detection, characterized in that: include: Clamping the part to be tested (8): installing the button-type shutter mounting button on the top contact of the cylinder of the touch-pressure switch, and fixing the clamping device (7) below the detector (2) by buckling two clamping plates (702) on the cylinder; Edge touch detection: start the motor (202), the driving rod (208) rotates around the fan-shaped driving block (207) to form a ring, and intermittently presses down along the edge of the additional key through the resetting of the elastic member (215); Middle touch and pressure: start the telescopic rod and press the middle of the added button intermittently; Test: After pressing down at least 50 times, power on the touch switch for testing.
Citation Information
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