Wooden door flatness detection device and detection method

Abstract

The invention relates to the technical field of flatness detection devices, and proposes a wooden door flatness detection device and a detection method. During the detection process, the requirements for the position and posture of the wooden door are relatively loose, the applicability to the environment is good, the operation is relatively simple, and the detection is more flexible. The device comprises a height adjustment component, a central main body component and a planetary detection component. The central main body component comprises a central guide cylinder, the central guide cylinder is fixedly connected with three angle frames, and the three angle frames are rotatably connected with parallel rods and linkage gears, the three parallel rods are rotatably connected with support rods, the three linkage gears are fixedly connected with linkage rods, the three linkage rods are respectively rotatably connected with the three support rods, and the three support rods are installed with support suction structures. The height adjustment component comprises a triangular frame, the central guide cylinder is provided with a triangular hole, the triangular frame is slidably connected in the triangular hole, three synchronous racks are fixedly connected in the triangular frame, and the three synchronous racks are respectively meshed with the three linkage gears.

Description

Technical Field

[0001] The present invention relates to the technical field of flatness detection devices, and in particular to a wooden door flatness detection device and a detection method. Background Art

[0002] As we all know, the flatness detection device for wooden doors is mainly used to ensure that the surface flatness of wooden doors meets the quality standards, avoiding problems such as cracks or falling of decorative paint caused by unevenness. In other words, the flatness detection device for wooden doors is mainly used to ensure that the surface flatness of wooden doors meets the quality standards, avoiding problems such as cracks or falling of decorative paint caused by unevenness. In order to facilitate the detection of the flatness of wooden doors, we propose a wooden door flatness detection device and detection method.

[0003] After searching, the Chinese patent publication number CN112629447A discloses a wooden door flatness detection device and detection method, which is roughly described as including an operating table and a plurality of fixed large lamps arranged on the operating table, a groove is opened on the top of the operating table, and a movable large lamp is rotatably connected inside the groove, and a spotlight device is slidably connected inside the groove. A plurality of bulbs and filters arranged on the top of the bulbs are arranged on the fixed large lamps and the movable large lamps, and a slide groove is provided at both ends of the operating table, and a height adjustment device is slidably connected on the slide groove, and a sliding roller is movably connected between the two height adjustment devices. When in use, the plurality of bulbs are used to illuminate the wooden door, and the flatness of the wooden door is detected through the light-transmitting position between the wooden door and the operating table, and a color developer is applied to the raised position of the wooden door through the sliding roller. The Chinese patent publication number is CN116592 Patent 798A discloses a concrete flatness detection device, which is roughly described as including a base, a support plate fixed on the top of the base, a top plate fixed on the top of the support plate, a cylinder fixed on the bottom of the top plate, and a laser leveler fixed on the bottom of the cylinder. After use, when the laser leveler is not in use, the cylinder can be started to move the laser leveler upward, and the tilting block can be squeezed to move to the left by the squeezing rod, driving the slider to move to the left, which will cause the slider to squeeze the transmission plate to move to the left. Through the cooperation of the transmission rod, the movable rod, the connecting block and the second electrode plate, the second electrode plate is brought into contact with the first electrode plate, and the fan can be energized to start the fan, so that air can be blown to the measuring point of the laser leveler to blow away the dust attached to the laser leveler, thereby preventing a large amount of dust from adhering to the laser leveler and affecting the measurement of the laser leveler.

[0004] Although the above-mentioned existing technical solutions can all realize flatness detection, the premise of both detections is to place the target object to be detected in their respective detection positions, that is, the target object to be detected needs to be moved relative to each other, and in most cases the height of the wooden door will be two meters or more. Therefore, in order to facilitate the placement detection of the wooden door, the corresponding flatness detection device in the above-mentioned existing technical solution needs to have sufficient specifications and dimensions. Therefore, the external dimensions of the flatness detection device are relatively large, and the transportation of the wooden door will also increase the operation steps for the detection of the wooden door. During the actual painting operation, the wooden door is not always in a horizontal state. In actual use scenarios, most wooden doors are installed and used upright, and the wooden door is placed in the corresponding flatness detection device in a fixed and single flat form. Therefore, the detection flexibility needs to be further improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a wooden door flatness detection device and detection method, which has relatively loose requirements on the position and posture of the wooden door during the detection process, has good applicability to the environment during detection, is relatively simple in detection operation, and has good detection flexibility.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wooden door flatness detection device, comprising a height adjustment component, a central main body component and a planetary detection component, the central main body component comprising a central guide cylinder, the central guide cylinder is fixedly connected to three angle brackets, the three angle brackets are rotatably connected to parallel rods and linkage gears, the three parallel rods are rotatably connected to support rods, the three linkage gears are fixedly connected to linkage rods, the three linkage rods are respectively rotatably connected to the three support rods, and the three support rods are equipped with support suction structures, the height adjustment component comprises a triangular frame, the central A triangular hole is provided on the guide cylinder, the triangular frame is slidably connected in the triangular hole, and three synchronous racks are fixedly connected in the triangular frame, the three synchronous racks are respectively meshed with the three linkage gears, and an auxiliary drive limiting structure matching the triangular frame is rotatably connected to the central guide cylinder. The planetary detection assembly includes a stepped planetary cylinder, a lifting detection rod is slidably connected in the stepped planetary cylinder, an elastic sleeve spring is connected between the lifting detection rod and the stepped planetary cylinder, a reading scale line is provided on the side of the lifting detection rod, and the stepped planetary cylinder is connected to an external mounting ring through an adjusting mounting arm, and the external mounting ring is rotatably connected to the central guide cylinder.

[0007] Preferably, the top end of the elastic sleeve spring is fixedly connected with an adjusting sleeve, and the adjusting sleeve is slidably matched with the lifting detection rod. A threaded hole is opened on the adjusting sleeve, and a threaded positioning rod is threadedly connected to the threaded hole. The threaded positioning rod is used for tightening and limiting the lifting detection rod relative to the adjusting sleeve. The elastic sleeve spring is fixedly connected with a force transmission ring outside, and the force transmission ring is fixedly connected with a transmission frame. A guide groove is provided on the stepped planetary cylinder, and the transmission frame is slidably matched with the guide groove. A pressure detector is installed at the bottom end of the stepped planetary cylinder, and the transmission frame is provided with an auxiliary pressure plane in contact with the pressure surface of the pressure detector.

[0008] Preferably, the adjustment mounting arm includes a first section frame, a tail section frame and multiple middle section frames, and two adjacent middle section frames are rotatably connected to each other, the middle section frame adjacent to the first section frame is rotatably connected to the first section frame, and the middle section frame adjacent to the tail section frame is rotatably connected to the tail section frame. The first section frame and the tail section frame are respectively fixedly connected to the stepped planetary barrel and the external mounting ring, the first section frame and the multiple middle section frames are each provided with an angle groove and a side groove, and the multiple angle grooves are each fixedly connected with an angle permanent magnet, and the multiple side grooves are each fixedly connected with a side permanent magnet, the tail section frame and the multiple middle section frames are each provided with an inner groove, and the multiple inner grooves are each fixedly connected with a surface permanent magnet matching the angle permanent magnet and the side permanent magnet.

[0009] Preferably, the three supporting and suction structures all include supporting round-headed rods, the three supporting round-headed rods are respectively fixedly connected to the three supporting leg rods, the three supporting round-headed rods are respectively provided with reduced diameter sections, the three reduced diameter sections are all fixedly connected with tension springs, the bottom ends of the three tension springs are all fixedly connected with lifting rings, the three lifting rings are respectively slidably connected to the three reduced diameter sections, and the bottom ends of the three lifting rings are each equipped with multiple suction cups.

[0010] Preferably, the auxiliary drive limiting structure includes a rotating frame, which is rotatably connected to the top end of the central guide cylinder, and a first sliding block and a second sliding block are slidably connected in the rotating frame, and the first sliding block and the second sliding block are respectively provided with a first threaded half opening and a second threaded half opening, and the first threaded half opening and the second threaded half opening cooperate with each other to form a complete threaded opening, and mutually connected angular threads are provided on the three circular strip surfaces of the triangular frame, and the angular threads match the complete threaded opening, and a double limiting mechanism is installed on the rotating frame, and the double limiting mechanism is used to limit the relative distance state and the relative fit state of the first sliding block and the second sliding block.

[0011] Preferably, the double limit mechanism includes a crank frame, a side opening mounting cavity is opened on the rotating frame, the crank frame is rotatably connected in the side opening mounting cavity, and two sub-brackets are fixedly connected to the crank frame, and the two sub-brackets are rotatably connected with arc plates, and the two arc plates are respectively rotatably connected to the first sliding block and the second sliding block, and a limit spring is installed on the crank frame, and the limit spring is connected in the side opening mounting cavity.

[0012] Preferably, a first rotating connecting block is rotatably connected to the crankshaft frame, and a second rotating connecting block is rotatably connected in the side opening mounting cavity, and the first rotating connecting block and the second rotating connecting block are respectively fixedly connected to the top end and the bottom end of the limit spring.

[0013] Preferably, the crankshaft frame and the threaded positioning rod are both fixedly connected with an auxiliary rotating block, the top and bottom ends of the triangular frame are both fixedly connected with a limiting ball, and the external mounting ring is fixedly connected with an auxiliary turning rod.

[0014] Preferably, a round head groove is opened on the side surface corresponding to the lifting detection rod and the threaded positioning rod, a round head block is slidably fitted in the round head groove, the round head block and the threaded positioning rod are rotatably connected, and a conical head is provided at the bottom end of the lifting detection rod, and a rolling ball is installed at the bottom end of the conical head.

[0015] A detection method for a wooden door flatness detection device comprises the following steps:

[0016] S1. When in use, first adjust the triangular frame upward relative to the central guide tube, and the movement of the triangular frame drives the three synchronous racks to move synchronously. Under the meshing transmission of the three synchronous racks and the three linkage gears, the three linkage rods are respectively rotated synchronously relative to the three angle frames, so that the three support rods are all rotated synchronously relative to the central guide tube and fall down, and finally cooperate with the central guide tube to form three support points;

[0017] S2, the three supporting points in the control step S1 are all relatively close to the detection surface of the wooden door to be detected until the three supporting points are in contact with the detection surface of the wooden door, and the three supporting rods are respectively maintained in a relative contact state with the detection surface of the wooden door through the three supporting suction structures, and the position of the lifting detection rod relative to the central guide cylinder is adjusted by adjusting the mounting arm, that is, the relative position of the lifting detection rod is adjusted relative to the detection surface of the wooden door, and under the elastic effect of the elastic sleeve spring, the lifting detection rod will form a relatively tight contact with the detection surface of the wooden door;

[0018] S3. When the detection surface of the wooden door has a flatness deviation, the flatness deviation will overcome the elastic effect of the elastic sleeve spring, pushing the lifting detection rod to cause a relative height change relative to the step planetary cylinder. The height change will cause the area where the reading scale line is blocked by the step planetary cylinder to change. The lifting detection rod is adjusted relative to the detection surface of the wooden door to form a multi-point detection of the detection surface of the wooden door. During the switching process of the multi-point detection, the flatness of the wooden door can be detected by reading the change in the amount of blockage of the reading scale line.

[0019] Compared with the prior art, the present invention provides a wooden door flatness detection device and detection method, which have the following beneficial effects:

[0020] (1) In the present invention, the central main body component is designed to cooperate with the wooden door to form a corresponding bracket installation structure, so as to facilitate the subsequent detection operation of the wooden door by the planetary detection component. During the detection process, the requirements for the position and posture of the wooden door are relatively loose, and the applicability to the environment during the detection is better.

[0021] (2) In the present invention, by equipping the height adjustment assembly, the matching central body assembly forms a synchronous drive structure of three interlocking gears therein, so as to facilitate the folding and unfolding operations of the central body assembly, and the positioning operation of the bracket relative to the wooden door before detection is relatively simple.

[0022] (3) In the present invention, the planetary detection component is designed and matched with the wooden door to form a corresponding detection function structure, so the detection operation is relatively simple, the detection area is wider, and the detection flexibility is also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0025] Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0026] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the cooperation of the central guide tube, the angle bracket and the external mounting ring of the present invention;

[0027] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the step planetary cylinder, the force transmission ring and the transmission frame of the present invention;

[0028] Figure 6 It is a schematic diagram of a three-dimensional structure of the rotating frame, the first sliding block, the second sliding block, etc. of the present invention;

[0029] Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the cooperation of the rotating frame, the first sliding block, the second sliding block, etc. of the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the arc plate, the limit spring and the first rotating connecting block of the present invention;

[0031] Fig. 9 It is a schematic diagram of a three-dimensional structure of the arc plate, the limit spring and the first rotary connecting block in cooperation with each other to push the first sliding block and the second sliding block to separate from each other;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the section frame in the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the crankshaft frame and the sub-frame of the present invention;

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure of the present invention as a whole from another angle;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure of the threaded positioning rod, the auxiliary rotating block and the round head block of the present invention;

[0036] Fig.14 It is a schematic diagram of the three-dimensional structure of the present invention as a whole when viewed from above;

[0037] Fig.15 It is a schematic diagram of a three-dimensional structure of the step planetary cylinder, the force transmission ring and the transmission frame of the present invention, which is viewed from bottom;

[0038] Fig.16 It is a schematic diagram of the three-dimensional structure of the central guide tube and the angle frame cooperating with each other in the present invention;

[0039] Fig.17 It is a schematic diagram of the three-dimensional structure of the present invention in an overall folded state.

[0040] In the figure: 1. center guide cylinder; 2. angle bracket; 3. parallel rod; 4. linkage gear; 5. support rod; 6. linkage rod; 7. triangular bracket; 8. triangular hole; 9. synchronous rack; 10. stepped planetary cylinder; 11. lifting detection rod; 12. elastic sleeve spring; 13. reading scale line; 14. external mounting ring; 15. adjustment sleeve; 16. threaded positioning rod; 17. force transmission ring; 18. transmission frame; 19. guide groove; 20. pressure detector; 21. first section frame; 22. tail section frame; 23. middle section frame; 24. angle groove; 25. side groove; 26. angle permanent magnet; 27. side permanent magnet body; 28, inner groove; 29, surface permanent magnet; 30, supporting round head rod; 31, reduced diameter section; 32, tension spring; 33, lifting ring; 34, suction cup; 35, rotating frame; 36, first sliding block; 37, second sliding block; 38, first thread half mouth; 39, second thread half mouth; 40, angle thread; 41, crankshaft frame; 42, sub-bracket; 43, arc plate; 44, limit spring; 45, first rotating connecting block; 46, second rotating connecting block; 47, auxiliary rotating block; 48, limit ball; 49, auxiliary turning rod; 50, round head groove; 51, round head block; 52, conical head; 53, rolling ball. DETAILED DESCRIPTION

[0041] 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.

[0042] For examples, see Figure 1-Figure 17A wooden door flatness detection device includes a height adjustment component, a central main body component and a planetary detection component. The central main body component includes a central guide cylinder 1, and the central guide cylinder 1 is fixedly connected to three corner frames 2. The three corner frames 2 are rotatably connected to parallel rods 3 and linkage gears 4. The three parallel rods 3 are rotatably connected to support rods 5. The three linkage gears 4 are fixedly connected to linkage rods 6. The three linkage rods 6 are rotatably connected to the three support rods 5 respectively. The three support rods 5 are installed with support suction structures. Through the design of the central main body component, a corresponding bracket installation structure is formed in conjunction with the wooden door to facilitate the subsequent detection operation of the wooden door by the planetary detection component. The requirements for the position and posture of the wooden door during the detection process are relatively loose, and the ring is checked during the detection. The three supporting and suction structures all include supporting round-headed rods 30, which are fixedly connected to the three supporting foot rods 5 respectively, and are provided with reduced diameter sections 31, which are fixedly connected to tension springs 32, and the bottom ends of the three tension springs 32 are fixedly connected to lifting rings 33, which are slidingly connected to the three reduced diameter sections 31 respectively, and the bottom ends of the three lifting rings 33 are installed with a plurality of suction cups 34, which are connected and adsorbed with the suction cups 34 relative to the detection surface of the wooden door, and the supporting round-headed rods 30 are assisted in applying pressure relative to the detection surface of the wooden door under the action of the tension springs 32, and finally the supporting round-headed rods 30 are in relatively stable contact and maintenance with the detection surface of the wooden door.

[0043] It should be further explained that the height adjustment component includes a triangular frame 7, a triangular hole 8 is provided on the central guide tube 1, the triangular frame 7 is slidably connected in the triangular hole 8, and three synchronous racks 9 are fixedly connected in the triangular frame 7, and the three synchronous racks 9 are respectively engaged with three linkage gears 4. The central guide tube 1 is rotatably connected with an auxiliary drive limiting structure matching the triangular frame 7. Through the configuration of the height adjustment component, the matching central main body component forms a synchronous drive structure of the three linkage gears 4 therein to facilitate the folding and unfolding operation of the central main body component. The positioning operation of the bracket relative to the wooden door before detection is relatively simple. The auxiliary drive limiting structure includes a rotating frame 35, which is rotatably connected to the top of the central guide tube 1, and a first sliding block is slidably connected in the rotating frame 35. 36 and the second sliding block 37, the first sliding block 36 and the second sliding block 37 are respectively provided with a first thread half-mouth 38 and a second thread half-mouth 39, and the first thread half-mouth 38 and the second thread half-mouth 39 cooperate with each other to form a complete thread mouth, and the three circular strip surfaces of the triangular frame 7 are provided with mutually coherent angular threads 40, and the angular threads 40 match the complete thread mouth. A double limiting mechanism is installed on the rotating frame 35, and the double limiting mechanism is used to limit the relative separation state and the relative fitting state of the first sliding block 36 and the second sliding block 37. By controlling the first sliding block 36 and the second sliding block 37 to separate from each other, the relative thread cooperation between the first thread half-mouth 38 and the second thread half-mouth 39 and the angular threads 40 fails. In this state, By pulling the triangular frame 7 relative to the triangular hole 8, the three synchronous racks 9 can be driven quickly and synchronously. After the adjustment drive is completed, the first sliding block 36 and the second sliding block 37 are controlled to approach each other until they are in contact with each other, and a complete thread opening is formed and forms a relative thread cooperation with the angular thread 40. Under the action of this threaded connection, the relative position stability of the triangular frame 7 in the triangular hole 8 can be assisted. By rotating the rotating frame 35 relative to the central guide cylinder 1, the synchronous relative rotation of the first sliding block 36 and the second sliding block 37 can be achieved. When the complete thread opening and the angular thread 40 form a relative thread cooperation, the rotation of the first sliding block 36 and the second sliding block 37 will form a slow adjustment of the triangular frame 7 along the triangular hole 8, and the central guide cylinder 1 and the rotating frame A friction damping is provided at the contact point between the two parts to ensure that the rotating frame 35 will not rotate relatively when subjected to a friction force smaller than the friction damping. The double limit mechanism includes a crank frame 41. A side opening mounting cavity is provided on the rotating frame 35. The crank frame 41 is rotatably connected in the side opening mounting cavity. Two sub-brackets 42 are fixedly connected to the crank frame 41. Both sub-brackets 42 are rotatably connected with an arc plate 43. The two arc plates 43 are rotatably connected to the first sliding block 36 and the second sliding block 37, respectively. A limit spring 44 is installed on the crank frame 41. The limit spring 44 is connected in the side opening mounting cavity, and cooperates with the first sliding block 36 and the second sliding block 37 to form an auxiliary limit for the state of the driving adjustment and the state after the adjustment is completed.A first rotating connecting block 45 is rotatably connected to the crankshaft frame 41, and a second rotating connecting block 46 is rotatably connected in the side opening installation cavity. The first rotating connecting block 45 and the second rotating connecting block 46 are respectively fixedly connected to the top and bottom ends of the limit spring 44, and cooperate with the limit spring 44 to form a corresponding connection installation structure.

[0044] It should be further explained that the planetary detection assembly includes a stepped planetary barrel 10, a lifting detection rod 11 is slidably connected inside the stepped planetary barrel 10, an elastic sleeve spring 12 is connected between the lifting detection rod 11 and the stepped planetary barrel 10, a reading scale line 13 is arranged on the side of the lifting detection rod 11, the stepped planetary barrel 10 is connected to an external mounting ring 14 through an adjusting mounting arm, the external mounting ring 14 is rotatably connected to the central guide barrel 1, an adjusting sleeve 15 is fixedly connected to the top of the elastic sleeve spring 12, the adjusting sleeve 15 is slidably matched with the lifting detection rod 11, a threaded hole is provided on the adjusting sleeve 15, a threaded positioning rod 16 is threadedly connected in the threaded hole, the threaded positioning rod 16 is used for the lifting detection rod 11 to be pressed against and limited relative to the adjusting sleeve 15, and the elastic sleeve spring 12 is externally fixed A force transmission ring 17 is fixedly connected, and the force transmission ring 17 is fixedly connected to a transmission frame 18. A guide groove 19 is arranged on the stepped planetary cylinder 10, and the transmission frame 18 is in sliding cooperation with the guide groove 19. A pressure detector 20 is installed at the bottom end of the stepped planetary cylinder 10, and the transmission frame 18 is provided with an auxiliary pressure plane in contact with the pressure surface of the pressure detector 20. Through the design of the planetary detection component, a corresponding detection function structure is formed in combination with the wooden door, the detection operation is relatively simple, the detection area is wider, and the detection flexibility is also better. The adjustment installation arm includes a first section frame 21, a tail section frame 22 and a plurality of middle section frames 23. Two adjacent middle section frames 23 are rotatably connected to each other, the middle section frame 23 adjacent to the first section frame 21 is rotatably connected to the first section frame 21, and the middle section frame 2 adjacent to the tail section frame 22 is rotatably connected to the first section frame 21. 3 is rotatably connected to the tail frame 22, the first frame 21 and the tail frame 22 are respectively fixedly connected to the stepped planetary barrel 10 and the external mounting ring 14, the first frame 21 and the plurality of middle frames 23 are provided with angle grooves 24 and side grooves 25, the plurality of angle grooves 24 are fixedly connected with angle permanent magnets 26, the plurality of side grooves 25 are fixedly connected with side permanent magnets 27, the tail frame 22 and the plurality of middle frames 23 are provided with inner grooves 28, the plurality of inner grooves 28 are fixedly connected with surface permanent magnets 29 matching with the angle permanent magnets 26 and matching with the side permanent magnets 27, so as to facilitate the installation and definition of the overall structure formed by the first frame 21, the tail frame 22 and the plurality of middle frames 23, the crankshaft frame 41 and the threaded positioning rod 16 are fixedly connected with the auxiliary rotating shaft frame 41 ... Block 47 facilitates the rotational force of the crankshaft frame 41 and the threaded positioning rod 16. The top and bottom ends of the triangular frame 7 are fixedly connected to the limiting ball 48 to realize the movement limit of the triangular frame 7 relative to the triangular hole 8 and prevent the triangular frame 7 from escaping from the triangular hole 8. An auxiliary turning rod 49 is fixedly connected to the external mounting ring 14 to facilitate the rotational drive of the external mounting ring 14 relative to the central guide tube 1, so that the lifting detection rod 11 has a wider detection range. A round head groove 50 is provided on the side surface corresponding to the threaded positioning rod 16 of the lifting detection rod 11. A round head block 51 is slidably matched in the round head groove 50. The round head block 51 is rotatably connected to the threaded positioning rod 16. A conical head 52 is provided at the bottom end of the lifting detection rod 11, and a rolling ball 53 is installed at the bottom end of the conical head 52.When the lifting detection rod 11 comes into contact with the detection surface of the wooden door, it is actually the contact between the rolling ball 53 and the detection surface of the wooden door. The smooth spherical surface of the rolling ball 53 can reduce the damage to the detection surface of the wooden door during the detection process, and when relatively switching between multiple detection points on the detection surface of the wooden door, it is only necessary to push the lifting detection rod 11 relative to the detection surface of the wooden door. In this process, the rolling ball 53 rolls relative to the detection surface of the wooden door, reducing the damage to the detection surface of the wooden door.

[0045] The pressure detector 20 in this embodiment is a conventional device purchased on the market and known to those skilled in the art. In the present invention, we only use it and do not improve its structure and function. For those skilled in the art, its setting method, installation method and electrical connection method only need to be debugged and operated according to the requirements of its instruction manual, and will not be described in detail here. The pressure detector 20 is equipped with a data wireless receiving terminal, through which the detection data can be read, stored and displayed, so as to facilitate the quantitative evaluation of the flatness of the wooden door.

[0046] In summary, the working principle of the wooden door flatness detection device and detection method is that when in use, the crankshaft frame 41 is first rotated, and the rotation of the crankshaft frame 41 drives the two sub-brackets 42 to rotate synchronously, and the rotation of the two sub-brackets 42 drives the two arc plates 43 to move, and the first sliding block 36 and the second sliding block 37 are driven away from each other by the linkage of the two arc plates 43. This state is shown in the attached figure. Fig. 9 As shown, in this state, the first threaded half-mouth 38 and the second threaded half-mouth 39 have invalid restrictions on the triangular frame 7. By directly pulling the triangular frame 7 upward relative to the central guide tube 1, the triangular frame 7 can be adjusted upward relative to the central guide tube 1. The movement of the triangular frame 7 drives the three synchronous racks 9 to move synchronously. Under the meshing transmission action of the three synchronous racks 9 and the three linkage gears 4, the three linkage rods 6 are respectively rotated synchronously relative to the three angle frames 2, so that the three support rods 5 are all rotated and dropped synchronously relative to the central guide tube 1. The three supporting round-headed rods 30 will respectively accompany the three support rods 5 to form synchronous rotation and drop, and finally cooperate to form three support points for the central guide tube 1. In order to maintain the relative stability between the three support points, the crankshaft frame 41 should be rotated to enter as shown in the attached figure. Figure 8 In the state shown, the first sliding block 36 and the second sliding block 37 are close to each other, the first thread half opening 38 and the second thread half opening 39 cooperate with each other to form a complete thread opening, and the complete thread opening acts on the corner thread 40 to form a relative height limit of the triangular frame 7 relative to the central guide tube 1. Figure 8 and attached Fig. 9The two states shown are two limit states of the limit spring 44. In the aforementioned process of rotating the crankshaft frame 41, the limit spring 44 will pass through the limit stretching length point, which is the critical switching point of the two limit states of the limit spring 44. The three support points are controlled to be relatively close to the detection surface of the wooden door to be detected until the three support points are in contact with the detection surface of the wooden door, that is, the bottom round heads of the three supporting round-headed rods 30 are in contact with the detection surface of the wooden door, and the three supporting leg rods 5 are respectively maintained in a relative contact state with the detection surface of the wooden door through three supporting suction structures, that is, the tension of the tension spring 32 is overcome, so that the suction cups 34 at the bottom of the lifting ring 33 are in contact with and pressed against the detection surface of the wooden door. When the suction cups 34 are adsorbed relative to the detection surface of the wooden door, the supporting round-headed rods 30 will be in contact with the detection surface of the wooden door under the action of the tension spring 32. The auxiliary application of pressure is formed, and finally the effect of supporting the round head rod 30 to form a relatively stable contact and maintenance with the detection surface of the wooden door is achieved. The position of the lifting detection rod 11 relative to the center guide cylinder 1 is adjusted by adjusting the mounting arm, that is, the relative position of the lifting detection rod 11 is adjusted relative to the detection surface of the wooden door. Under the elastic action of the elastic sleeve spring 12, the lifting detection rod 11 will form a relatively tight contact with the detection surface of the wooden door. When the detection surface of the wooden door has a flatness deviation, the flatness deviation will overcome the elastic action of the elastic sleeve spring 12, and push the lifting detection rod 11 to cause a relative height change relative to the stepped planetary cylinder 10. The height change will cause the area where the reading scale line 13 is blocked by the stepped planetary cylinder 10 to change. The lifting detection rod 11 is adjusted relative to the detection surface of the wooden door, so that the lifting detection rod 11 forms a multi-point detection on the detection surface of the wooden door.

[0047] Furthermore, during the multi-point detection switching process, the flatness of the wooden door can be detected by reading the change in the amount of obstruction of the reading scale line 13, that is, when the flatness of the wooden door is good, the change in the amount of obstruction of the reading scale line 13 is small, and when the flatness of the wooden door is poor, the change in the amount of obstruction of the reading scale line 13 is large. When the reading scale line 13 is limited by its own scale interval, resulting in the reading accuracy being unable to form corresponding data reading for the change amount of the lifting detection rod 11, the pressure detector 20 will form an accurate reading of the data during the detection process to achieve the detection of the flatness of the wooden door, and the round head block 51 is moved in the round head groove 50 by rotating the threaded positioning rod 16. If the clamping and positioning function fails, it is convenient to adjust the relative position between the adjustment sleeve 15 and the lifting detection rod 11. After the adjustment is completed, the threaded positioning rod 16 is rotated in the opposite direction relative to the aforementioned rotation direction of the threaded positioning rod 16 to achieve re-limitation between the adjustment sleeve 15 and the lifting detection rod 11. The height of the rolling ball 53 at the bottom of the adjusted lifting detection rod 11 changes to facilitate the corresponding detection of the local steps on the detection surface of the wooden door. During the detection process, the support round head rod 30 and the suction cup 34 are still used to form a bracket installation relative to the flat surface of the wooden door. The adjusted lifting detection rod 11 is pushed to the local small-sized step on the detection surface of the wooden door for detection. During the operation and adjustment of the mounting arm, by adjusting the angle permanent magnets 26 and the surface permanent magnets 29 to form mutual magnetic attraction contact, even if the first section frame 21 and the middle section frame 23 connected thereto are formed in a relatively straight line arrangement, the tail section frame 22 and the middle section frame 23 connected thereto are formed in a relatively straight line arrangement, and the two middle section frames 23 rotatably connected to each other are formed in a relatively straight line arrangement, so as to facilitate the adjustment of the detection range of the lifting detection rod 11, and by adjusting the side permanent magnets 27 and the surface permanent magnets 29 to form mutual magnetic attraction contact, even if the first section frame 21 and the middle section frame 23 connected thereto are formed in a relatively vertical arrangement, the tail section frame 22 and the middle section frame 23 connected thereto are formed in a relatively vertical arrangement. The arrangement is such that the two mutually rotatably connected middle sections 23 are relatively vertically arranged to facilitate the adjustment of the special curvature posture of the mounting arm, and when the surface permanent magnet 29 is in a state between the magnetic attraction contact with the side permanent magnet 27 and the magnetic attraction contact with the corner permanent magnet 26, a relatively free rotation adjustment is formed between the first section 21 and the middle section 23 connected thereto, and a relatively free rotation adjustment is formed between the tail section 22 and the middle section 23 connected thereto, and a relatively free rotation adjustment can also be formed between the two mutually rotatably connected middle sections 23, so as to achieve the adjustment of the corresponding detection position of the lifting detection rod 11, and when the wooden door flatness detection device as a whole enters the state as shown in the attached Fig.17In the folded storage state shown, the overall structure formed by the first section frame 21, the tail section frame 22 and the multiple middle sections frame 23 can be wrapped around the outside of the three parallel rods 3 that are combined and stored. Through the magnetic attraction of the corner permanent magnets 26, the side permanent magnets 27 and the surface permanent magnets 29, the posture of the first section frame 21, the tail section frame 22 and the multiple middle sections frame 23 in the wrapped state can be maintained.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wooden door flatness detection device, comprising a height adjustment component, characterized in that: The device also comprises a central body component and a planetary detection component, wherein the central body component comprises a central guide tube (1), the central guide tube (1) is fixedly connected to three angle frames (2), the three angle frames (2) are rotatably connected to parallel rods (3) and linkage gears (4), the three parallel rods (3) are rotatably connected to support rods (5), the three linkage gears (4) are fixedly connected to linkage rods (6), the three linkage rods (6) are rotatably connected to the three support rods (5), respectively, the three support rods (5) are equipped with a support suction structure, and the height adjustment component comprises a triangular frame (7), the central guide tube (1) is provided with a triangular hole (8), and the triangular frame (7) is slidably connected to the triangular hole (8). The three prisms (7) are fixedly connected to three synchronous racks (9), the three synchronous racks (9) are respectively meshed with the three linkage gears (4), the central guide cylinder (1) is rotatably connected to an auxiliary drive limit structure matching the three prisms (7), the planetary detection assembly comprises a stepped planetary cylinder (10), a lifting detection rod (11) is slidably connected to the stepped planetary cylinder (10), an elastic sleeve spring (12) is connected between the lifting detection rod (11) and the stepped planetary cylinder (10), a reading scale line (13) is arranged on the side of the lifting detection rod (11), the stepped planetary cylinder (10) is connected to an external mounting ring (14) through an adjustable mounting arm, and the external mounting ring (14) is rotatably connected to the central guide cylinder (1).

2. A wooden door flatness detection device according to claim 1, characterized in that: The top end of the elastic sleeve spring (12) is fixedly connected to an adjusting sleeve (15), the adjusting sleeve (15) is slidably matched with the lifting detection rod (11), a threaded hole is provided on the adjusting sleeve (15), a threaded positioning rod (16) is threadedly connected to the threaded hole, the threaded positioning rod (16) is used for the lifting detection rod (11) to be pressed and limited relative to the adjusting sleeve (15), a force transmission ring (17) is fixedly connected to the outside of the elastic sleeve spring (12), the force transmission ring (17) is fixedly connected to a transmission frame (18), a guide groove (19) is provided on the stepped planetary cylinder (10), the transmission frame (18) is slidably matched with the guide groove (19), a pressure detector (20) is installed at the bottom end of the stepped planetary cylinder (10), and the transmission frame (18) is provided with an auxiliary pressure plane contacting the pressure surface of the pressure detector (20).

3. A wooden door flatness detection device according to claim 2, characterized in that: The adjustable mounting arm comprises a first section frame (21), a tail section frame (22) and a plurality of middle section frames (23); two adjacent middle section frames (23) are rotatably connected to each other; a middle section frame (23) adjacent to the first section frame (21) is rotatably connected to the first section frame (21); a middle section frame (23) adjacent to the tail section frame (22) is rotatably connected to the tail section frame (22); the first section frame (21) and the tail section frame (22) are respectively fixedly connected to the stepped planetary barrel (10) and the external mounting ring (14); The section frame (21) and the plurality of middle section frames (23) are each provided with an angle groove (24) and a side groove (25); the plurality of angle grooves (24) are each fixedly connected with an angle permanent magnet (26); the plurality of side grooves (25) are each fixedly connected with a side permanent magnet (27); the tail section frame (22) and the plurality of middle section frames (23) are each provided with an inner groove (28); the plurality of inner grooves (28) are each fixedly connected with a surface permanent magnet (29) matching the angle permanent magnet (26) and matching the side permanent magnet (27).

4. A wooden door flatness detection device according to claim 3, characterized in that: The three supporting suction structures each comprise a supporting round-headed rod (30), the three supporting round-headed rods (30) being fixedly connected to the three supporting foot rods (5) respectively, the three supporting round-headed rods (30) being provided with a reduced diameter section (31), the three reduced diameter sections (31) being fixedly connected to a tension spring (32), the bottom ends of the three tension springs (32) being fixedly connected to a lifting ring (33), the three lifting rings (33) being slidably connected to the three reduced diameter sections (31) respectively, and the bottom ends of the three lifting rings (33) being provided with a plurality of suction cups (34).

5. A wooden door flatness detection device according to claim 4, characterized in that: The auxiliary drive limiting structure comprises a rotating frame (35), the rotating frame (35) is rotatably connected to the top end of the central guide tube (1), a first sliding block (36) and a second sliding block (37) are slidably connected in the rotating frame (35), the first sliding block (36) and the second sliding block (37) are respectively provided with a first threaded half opening (38) and a second threaded half opening (39), and the first threaded half opening (38) and the second threaded half opening (39) cooperate with each other to form a complete threaded opening, three circular strip surfaces of the triangular frame (7) are provided with mutually connected angular threads (40), and the angular threads (40) match the complete threaded opening, and a double limiting mechanism is installed on the rotating frame (35), and the double limiting mechanism is used to limit the relative separation state and the relative contact state of the first sliding block (36) and the second sliding block (37).

6. A wooden door flatness detection device according to claim 5, characterized in that: The double limit mechanism comprises a crankshaft frame (41), the rotating frame (35) is provided with a side opening mounting cavity, the crankshaft frame (41) is rotatably connected in the side opening mounting cavity, and two sub-frames (42) are fixedly connected to the crankshaft frame (41), both of the two sub-frames (42) are rotatably connected to an arc plate (43), the two arc plates (43) are respectively rotatably connected to the first sliding block (36) and the second sliding block (37), and a limit spring (44) is installed on the crankshaft frame (41), and the limit spring (44) is connected in the side opening mounting cavity.

7. A wooden door flatness detection device according to claim 6, characterized in that: A first rotating connecting block (45) is rotatably connected to the crankshaft frame (41), and a second rotating connecting block (46) is rotatably connected in the side opening mounting cavity. The first rotating connecting block (45) and the second rotating connecting block (46) are respectively fixedly connected to the top end and the bottom end of the limit spring (44).

8. A wooden door flatness detection device according to claim 7, characterized in that: The crankshaft frame (41) and the threaded positioning rod (16) are both fixedly connected to an auxiliary rotating block (47), the top and bottom ends of the triangular frame (7) are both fixedly connected to a limiting ball (48), and the external mounting ring (14) is fixedly connected to an auxiliary turning rod (49).

9. A wooden door flatness detection device according to claim 8, characterized in that: A round head groove (50) is provided on the side surface corresponding to the threaded positioning rod (16) of the lifting detection rod (11), a round head block (51) is slidably fitted in the round head groove (50), the round head block (51) and the threaded positioning rod (16) are rotatably connected, and a conical head (52) is provided at the bottom end of the lifting detection rod (11), and a rolling ball (53) is installed at the bottom end of the conical head (52).

10. A detection method for a wooden door flatness detection device, characterized in that: A wooden door flatness detection device according to any one of claims 1 to 9 is used, comprising the following steps: S1. When in use, the triangular frame (7) is first adjusted upward relative to the central guide tube (1). The movement of the triangular frame (7) drives the three synchronous racks (9) to move synchronously. Under the meshing transmission action of the three synchronous racks (9) and the three linkage gears (4), the three linkage rods (6) are respectively rotated synchronously relative to the three angle frames (2), so that the three support rods (5) are all rotated synchronously relative to the central guide tube (1) and fall down, and finally cooperate to form three support points for the central guide tube (1). S2, the three supporting points in step S1 are controlled to be relatively close to the detection surface of the wooden door to be detected until the three supporting points are in contact with the detection surface of the wooden door, and the three supporting rods (5) are respectively formed by three supporting and suction structures to maintain a relative contact state with respect to the detection surface of the wooden door, and the position of the lifting detection rod (11) relative to the central guide tube (1) is adjusted by adjusting the mounting arm, that is, the relative position of the lifting detection rod (11) is adjusted relative to the detection surface of the wooden door, and under the elastic action of the elastic sleeve spring (12), the lifting detection rod (11) will form a relatively tight contact with the detection surface of the wooden door; S3. When the detection surface of the wooden door has a flatness deviation, the flatness deviation will overcome the elastic effect of the elastic sleeve spring (12), push the lifting detection rod (11) to change its relative height relative to the stepped planetary cylinder (10), and the height change will cause the area of ​​the reading scale line (13) blocked by the stepped planetary cylinder (10) to change. The lifting detection rod (11) is adjusted relative to the detection surface of the wooden door so that the lifting detection rod (11) forms a multi-point detection on the detection surface of the wooden door. During the multi-point detection switching process, the wooden door flatness detection can be realized by reading the change in the amount of the reading scale line (13) blocked.

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