Demodulator for data acquisition

Abstract

The utility model belongs to the technical field of modems, and particularly relates to a demodulator for data acquisition, which comprises a base, an upper cover, a circuit board and an easy-to-disassemble mounting component, the easy-to-disassemble mounting component comprises a locking mechanism, and the locking mechanism comprises a locking pin, a locking pin, a locking pin, a locking pin and a locking pin. The positioning rod is fixed on the base; the manual control mechanism comprises a side plate fixed on the upper cover, and a handle fixed on the side plate; the top plate is fixed at the top ends of the side plates; the pull rod is arranged on the top plate in a drawable manner; the lifting plate is fixed at the bottom end of the pull rod; the turnover connecting rod is hinged between the lifting plate and the locking pin; the reset spring is arranged on the pull rod in a sleeving manner; according to the utility model, the base and the upper cover are connected through the two groups of symmetrical easy-to-disassemble mounting components, and each component comprises a locking mechanism consisting of a locking pin, a positioning rod and the like and a manual control mechanism consisting of a pull rod, a lifting plate, a reset spring and the like, so that tool-free quick disassembly and assembly can be realized, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of modem technology, specifically relating to a demodulator for data acquisition. Background Technology

[0002] A modem is an abbreviation for modulator-demodulator, a type of computer hardware that translates a computer's digital signals into analog signals that can be transmitted over ordinary telephone lines. These analog signals can then be received by another modem at the other end of the line and translated into a language that the computer can understand. It is an important component of modern network transmission and plays a crucial role in the stable transmission of the network.

[0003] The modem mainly includes core modules such as a modem module, a processor, and an interface module, which are housed in a housing consisting of a base and a top cover.

[0004] For example, in the prior art, Chinese utility model patent with authorization announcement number CN222602504U discloses "an analysis and demodulation processing device", which includes a housing module and an electronic module. The electronic module is installed on the housing module. The housing module includes a first housing, a second housing, and a mounting component. The first housing and the second housing are fixedly connected, and the mounting component is fixedly installed on the second housing. The first housing has an integrally formed front plate, a bottom plate, a first side plate, and a second side plate.

[0005] In the prior art, including the modems mentioned above, the housing module is assembled by a first housing, a second housing, and mounting components. Although this can meet general usage requirements, special tools are required to assemble and disassemble the housing, which is cumbersome and not convenient for quick disassembly to inspect the internal core module.

[0006] To address the aforementioned problems, this utility model proposes a demodulator for data acquisition. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a demodulator for data acquisition, which is convenient to use and easy to quickly repair.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a demodulator for data acquisition, comprising a base, a top cover mounted on the top of the base, and a circuit board disposed within the base, and further comprising easily detachable mounting components. The top cover is connected to the base via two symmetrically distributed easily detachable mounting components, each comprising:

[0009] Locking mechanism, the locking mechanism comprising:

[0010] Locking pin;

[0011] A positioning rod fixed to the base has a positioning hole on the upper cover for the positioning rod to pass through, and a locking hole on the positioning rod for the locking pin to be inserted.

[0012] The manual control mechanism includes:

[0013] A side plate fixed to the upper cover, the side plate having a guide hole for the locking pin to pass through;

[0014] A top plate fixed to the top of the side plate;

[0015] A pull rod that can be retracted from the top plate;

[0016] A lifting plate fixed to the bottom end of the pull rod;

[0017] A flip-up connecting rod hinged between the lifting plate and the locking pin; and

[0018] A return spring is sleeved on the pull rod, and the return spring is located between the top plate and the lifting plate.

[0019] In a preferred embodiment of this invention, the locking pin is a square rod, the locking hole is a square hole, and the size of the locking pin is adapted to the size of the locking hole.

[0020] As a preferred embodiment of this utility model, the end face of the locking pin near the positioning rod is an inclined surface.

[0021] As a preferred embodiment of this utility model, the locking pin, the side plate, and the flip connecting rod are all symmetrically distributed in twos.

[0022] As a preferred embodiment of this utility model, the manual control mechanism further includes:

[0023] Two guide columns are symmetrically fixed to the top surface of the lifting plate, and the guide columns penetrate the top plate.

[0024] As a preferred technical solution of this utility model, it also includes:

[0025] Positioning screws are fixed diagonally within the base, and mounting holes for the positioning screws to pass through are provided on the circuit board; and

[0026] The locking nut is screwed onto the protruding end of the positioning screw.

[0027] As a preferred embodiment of this utility model, it further includes an auxiliary heat-conducting mechanism, which comprises:

[0028] A metal heat-conducting plate located on the bottom side of the circuit board;

[0029] Telescopic rods diagonally fixed between the base and the metal heat-conducting plate; and

[0030] A telescopic spring fitted onto the telescopic rod.

[0031] As a preferred technical solution of this utility model, it also includes:

[0032] Fins are fixed at equal intervals to the bottom surface of the metal heat-conducting plate.

[0033] Compared with the prior art, the beneficial effects of this utility model are:

[0034] In this utility model, the base and the top cover are connected by two sets of symmetrical, easy-to-disassemble installation components. The components include a locking mechanism consisting of a locking pin, a positioning rod, etc., and a manual control mechanism consisting of a pull rod, a lifting plate, a return spring, etc., which can realize quick disassembly and assembly without tools and facilitate maintenance.

[0035] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This utility model Figure 1 A magnified schematic diagram of the locking mechanism in the diagram;

[0039] Figure 3 This utility model Figure 1 A magnified schematic diagram of the manual control mechanism in the diagram;

[0040] Figure 4 This is a schematic diagram of the isometric structure of the base in this utility model;

[0041] Figure 5 This is an enlarged structural schematic diagram of the auxiliary heat conduction mechanism in this utility model.

[0042] In the diagram: 1. Base; 2. Top cover; 21. Positioning hole; 3. Circuit board; 31. Mounting hole; 4. Easy-to-remove mounting assembly; 41. Locking mechanism; 411. Locking pin; 412. Positioning rod; 4121. Locking hole; 42. Manual control mechanism; 421. Side plate; 4211. Guide hole; 422. Top plate; 423. Pull rod; 424. Lifting plate; 425. Flip connecting rod; 426. Return spring; 427. Guide post; 5. Positioning screw; 6. Locking nut; 7. Auxiliary heat conduction mechanism; 71. Metal heat conduction plate; 711. Fin; 72. Telescopic rod; 73. Telescopic spring. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Please see Figures 1-5 The present invention provides the following technical solution: a demodulator for data acquisition, including a base 1, an upper cover 2 installed on the top of the base 1, and a circuit board 3 disposed in the base 1, and also includes an easy-to-remove mounting assembly 4. The upper cover 2 is connected to the base 1 through two sets of symmetrically distributed easy-to-remove mounting assemblies 4. The easy-to-remove mounting assembly 4 includes a locking mechanism 41 and a manual control mechanism 42. The locking mechanism 41 includes a locking pin 411 and a positioning rod 412 fixed to the base 1. The manual control mechanism 42 includes a side plate 421 fixed to the upper cover 2, a top plate 422 fixed to the top of the side plate 421, a pull rod 423 that can be pulled out and disposed on the top plate 422, a lifting plate 424 fixed to the bottom of the pull rod 423, a flip connecting rod 425 hinged between the lifting plate 424 and the locking pin 411, and a return spring 426 sleeved on the pull rod 423.

[0045] Furthermore, by Figures 1-3 As shown in this embodiment, a positioning hole 21 for the positioning rod 412 to pass through is provided on the upper cover 2, and a locking hole 4121 for the locking pin 411 to be inserted is provided on the positioning rod 412. A guide hole 4211 for the locking pin 411 to pass through is provided on the side plate 421. The return spring 426 is located between the top plate 422 and the lifting plate 424. With the above solution, when it is necessary to connect and fix the upper cover 2 to the base 1, the upper cover 2 is first placed on the top of the base 1, so that the positioning rod 412 is aligned with the positioning hole 21 on the upper cover 2 and passes through it. At this time, the positioning rod 412 passes through the positioning hole 21, providing preliminary positioning for the installation of the upper cover 2.

[0046] Next, the operator does not need any additional tools; they only need to operate the manual control mechanism 42. Since the return spring 426 is sleeved on the pull rod 423 and is located between the top plate 422 and the lifting plate 424, in the initial state, the return spring 426 is in a naturally extended state, applying a downward elastic force to the lifting plate 424. The lifting plate 424 is hinged to the locking pin 411 through the flip connecting rod 425. Under the action of the elastic force of the return spring 426, the lifting plate 424 moves downward, causing the flip connecting rod 425 to rotate around its hinge point with the lifting plate 424, thereby causing the locking pin 411 to move toward the positioning rod 412.

[0047] While pulling the lever 423 upward, press down the upper cover 2. The lever 423 moves upward and at the same time, the lifting plate 424 drives the flipping connecting rod 425 to move upward. The reset spring 426 retracts and the flipping connecting rod 425 drives the locking pin 411 to move away from the positioning rod 412.

[0048] When the locking pin 411 moves to align with the locking hole 4121 on the positioning rod 412, the pull rod 423 is released. Under the pushing force of the return spring 426, the locking pin 411 is embedded in the locking hole 4121, thereby completing the locking of the upper cover 2.

[0049] At this time, the top cover 2 is securely connected to the base 1 through two sets of symmetrically distributed easy-to-remove mounting components 4. The guide hole 4211 on the side plate 421 provides a guiding function for the movement of the locking pin 411, ensuring that the locking pin 411 can accurately pass through the side plate 421 and be embedded in the locking hole 4121.

[0050] When it is necessary to remove the top cover 2, the operator manually pulls the lever 423 upward. The lever 423 is retractably mounted on the top plate 422. As the lever 423 moves upward, it drives the lifting plate 424 fixed at its bottom to move upward together. At this time, the return spring 426 is compressed and stores elastic potential energy. When the lifting plate 424 moves upward, the flip connecting rod 425, which is hinged between the lifting plate 424 and the locking pin 411, rotates around its hinge point with the lifting plate 424. This causes the other end of the flip connecting rod 425 to drive the locking pin 411 to move away from the positioning rod 412, that is, to exit from the locking hole 4121.

[0051] Once the locking pin 411 is completely disengaged from the locking hole 4121, the locking state of the upper cover 2 is released. At this time, the operator can easily remove the upper cover 2 from the base 1. After releasing the pull rod 423, under the action of the elastic potential energy stored in the return spring 426, the return spring 426 returns to its original state, pushing the lifting plate 424 to move downward, thereby resetting the locking pin 411 and preparing for the next installation.

[0052] Through the coordinated operation of the locking mechanism 41 and the manual control mechanism 42, an easy-to-disassemble connection between the upper cover 2 and the base 1 is achieved. Operators can install and remove the upper cover 2 by manually pulling the lever 423 without the need for tools. The operation is simple and quick, which improves the maintenance and repair efficiency of the demodulator used for data acquisition.

[0053] Preferably, by Figures 1-3 As shown in this embodiment, the locking pin 411 is a square rod, the locking hole 4121 is a square hole, and the size of the locking pin 411 is adapted to the locking hole 4121. After adopting the above solution, when in use, compared with the circumferential rotation problem that may occur when using a traditional circular pin hole, the four sides of the square structure are completely in contact with the hole wall, effectively restricting the rotational freedom of the locking pin 411 around its own axis. This makes the connection between the upper cover 2 and the base 1 more stable. Especially when the demodulator vibrates due to data acquisition and signal processing during operation, it can effectively avoid the risk of the upper cover 2 falling off due to the loosening of the locking pin 411 due to rotation.

[0054] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the end face of the locking pin 411 near the positioning rod 412 is inclined. With the above solution, when the upper cover 2 needs to be fastened to the base 1, the positioning rod 412 will move upward through the positioning hole 21 of the upper cover 2.

[0055] At this time, the top of the positioning rod 412 will first contact the inclined surface of the locking pin 411. Due to the guiding effect of the inclined surface, the upward thrust of the positioning rod 412 will be decomposed into vertical and horizontal components. The horizontal component will push the locking pin 411 to move away from the positioning rod 412, so that the locking pin 411 will automatically retract without the need for the operator to pull the lever 423 in advance.

[0056] Preferably, by Figures 1-3 As shown in this embodiment, there are two locking pins 411, two side plates 421 and two flip connecting rods 425. With the above solution, the force is more evenly distributed during use compared with the single-sided connection, which ensures the stability of the upper cover 2 and the base 1 after connection.

[0057] Preferably, by Figures 1-3 As shown in this embodiment, the manual control mechanism 42 further includes two guide columns 427 symmetrically fixed to the top surface of the lifting plate 424. The guide columns 427 penetrate the top plate 422. With the above solution, the guide columns 427 are used to guide the lifting plate 424 during use, which further improves the stability of the lifting plate 424.

[0058] Preferably, by Figure 1 and Figure 4As shown, this embodiment also includes: a positioning screw 5 fixed diagonally inside the base 1 and a locking nut 6 screwed onto the protruding end of the positioning screw 5. A mounting hole 31 is provided on the circuit board 3 for the positioning screw 5 to pass through. With the above solution, when installing the circuit board 3, the circuit board 3 is first placed inside the base 1, and the positioning screw 5 passes through the mounting hole 31 on the circuit board 3 to accurately position its installation position.

[0059] Then, tighten the locking nut 6 at the protruding end of the positioning screw 5. The locking nut 6 moves downward under the action of the screw and presses down on the circuit board 3 to lock the circuit board 3.

[0060] Preferably, by Figure 1 , Figure 4 and Figure 5 As shown, this embodiment also includes an auxiliary heat conduction mechanism 7, which includes: a metal heat conduction plate 71 located on the bottom side of the circuit board 3, a telescopic rod 72 diagonally fixed between the base 1 and the metal heat conduction plate 71, and a telescopic spring 73 sleeved on the telescopic rod 72. With the above solution, when in use, the metal heat conduction plate 71 is in close contact with the bottom side of the circuit board 3. Its material is aluminum or copper, which can quickly absorb the heat generated by the electronic components on the circuit board 3 when they are working.

[0061] Two sets of telescopic rods 72 are diagonally distributed, with one end fixed to the inner wall of the base 1 and the other end connected to the bottom surface of the metal heat-conducting plate 71, forming a stable support structure.

[0062] The telescopic spring 73, which is sleeved on the telescopic rod 72, is in a compressed state in the initial state, and applies an upward elastic thrust to the metal heat-conducting plate 71, so that the metal heat-conducting plate 71 is tightly attached to the bottom surface of the circuit board 3, ensuring that a heat conduction path with low thermal resistance is formed between the two.

[0063] When the chips, resistors and other components on the circuit board 3 generate heat during operation, the heat is conducted to the bottom surface through the substrate of the circuit board 3, and the metal heat-conducting plate 71 quickly absorbs and evenly diffuses the heat.

[0064] Preferably, by Figure 1 , Figure 4 and Figure 5 As shown, this embodiment also includes fins 711 that are fixed at equal intervals to the bottom surface of the metal heat-conducting plate 71. With the above solution, when in use, the fins 711 expand the effective heat dissipation area of ​​the metal heat-conducting plate 71 through their geometric shape. According to Fourier's law of heat conduction, the increase in heat dissipation area can significantly improve the heat exchange rate.

[0065] Components not described in detail in this article are existing technologies.

[0066] The working principle and usage process of this utility model: When using the modem of this utility model, when it is necessary to connect and fix the upper cover 2 to the base 1, first place the upper cover 2 on the top of the base 1, so that the positioning rod 412 is aligned with the positioning hole 21 on the upper cover 2 and passes through it. At this time, the positioning rod 412 passes through the positioning hole 21, providing initial positioning for the installation of the upper cover 2.

[0067] Next, the operator does not need any additional tools. They only need to operate the manual control mechanism 42. Since the return spring 426 is sleeved on the pull rod 423 and is located between the top plate 422 and the lifting plate 424, in the initial state, the return spring 426 is in a naturally extended state, applying a downward elastic force to the lifting plate 424. The lifting plate 424 is hinged to the locking pin 411 through the flip connecting rod 425. Under the action of the elastic force of the return spring 426, the lifting plate 424 moves downward, causing the flip connecting rod 425 to rotate around its hinge point with the lifting plate 424, thereby causing the locking pin 411 to move towards the positioning rod 412.

[0068] The top of the positioning rod 412 will first contact the inclined surface of the locking pin 411. Due to the guiding effect of the inclined surface, the upward thrust of the positioning rod 412 will be decomposed into vertical and horizontal components. The horizontal component will push the locking pin 411 to move away from the positioning rod 412, so that the locking pin 411 will automatically retract without the need for the operator to pull the lever 423 in advance.

[0069] When the locking pin 411 moves to align with the locking hole 4121 on the positioning rod 412, under the pushing force of the return spring 426, the locking pin 411 is embedded in the locking hole 4121, thereby completing the locking of the upper cover 2.

[0070] At this time, the top cover 2 is securely connected to the base 1 through two sets of symmetrically distributed easy-to-remove mounting components 4. The guide hole 4211 on the side plate 421 provides a guiding function for the movement of the locking pin 411, ensuring that the locking pin 411 can accurately pass through the side plate 421 and be embedded in the locking hole 4121.

[0071] When it is necessary to remove the top cover 2, the operator manually pulls the lever 423 upward. The lever 423 is slidably set on the top plate 422. As the lever 423 moves upward, it drives the lifting plate 424 fixed at its bottom to move upward together. At this time, the return spring 426 is compressed and stores elastic potential energy. When the lifting plate 424 moves upward, the flip connecting rod 425, which is hinged between the lifting plate 424 and the locking pin 411, rotates around its hinge point with the lifting plate 424, so that the other end of the flip connecting rod 425 drives the locking pin 411 to move away from the positioning rod 412, that is, to exit from the locking hole 4121.

[0072] When the locking pin 411 is completely disengaged from the locking hole 4121, the locking state of the upper cover 2 is released. At this time, the operator can easily remove the upper cover 2 from the base 1. After releasing the pull rod 423, under the action of the elastic potential energy stored in the return spring 426, the return spring 426 returns to its original state, pushes the lifting plate 424 to move downward, and drives the locking pin 411 to reset, preparing for the next installation.

[0073] Through the coordinated operation of the locking mechanism 41 and the manual control mechanism 42, an easy-to-disassemble connection between the upper cover 2 and the base 1 is achieved. Operators can install and remove the upper cover 2 by manually pulling the lever 423 without the need for tools. The operation is simple and quick, which improves the maintenance and repair efficiency of the demodulator used for data acquisition.

[0074] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A demodulator for data acquisition, comprising a base (1), a top cover (2) mounted on the top of the base (1), and a circuit board (3) disposed within the base (1), characterized in that, It also includes a removable mounting assembly (4), wherein the upper cover (2) is connected to the base (1) via two symmetrically distributed removable mounting assemblies (4), and the removable mounting assembly (4) includes: Locking mechanism (41), said locking mechanism (41) includes: Locking pin (411); The positioning rod (412) is fixed to the base (1). A positioning hole (21) is provided on the upper cover (2) for the positioning rod (412) to pass through. A locking hole (4121) is provided on the positioning rod (412) for the locking pin (411) to be inserted. Manual control mechanism (42), the manual control mechanism (42) includes: The side plate (421) is fixed to the upper cover (2), and the side plate (421) has a guide hole (4211) through which the locking pin (411) passes. Top plate (422) fixed to the top of the side plate (421); A pull rod (423) that can be pulled out and installed on the top plate (422); The lifting plate (424) is fixed to the bottom end of the pull rod (423); A flip-up connecting rod (425) hinged between the lifting plate (424) and the locking pin (411); and A return spring (426) is sleeved on the pull rod (423), and the return spring (426) is located between the top plate (422) and the lifting plate (424).

2. The demodulator for data acquisition according to claim 1, characterized in that: The locking pin (411) is a square rod, the locking hole (4121) is a square hole, and the size of the locking pin (411) is adapted to the size of the locking hole (4121).

3. A demodulator for data acquisition according to claim 1, characterized in that: The locking pin (411) has a beveled end face near the positioning rod (412).

4. A demodulator for data acquisition according to claim 1, characterized in that: The locking pin (411), the side plate (421), and the flip connecting rod (425) are all symmetrically distributed in twos.

5. A demodulator for data acquisition according to claim 1, characterized in that: The manual control mechanism (42) further includes: Two guide posts (427) are symmetrically fixed to the top surface of the lifting plate (424), and the guide posts (427) penetrate the top plate (422).

6. A demodulator for data acquisition according to claim 1, characterized in that: Also includes: A positioning screw (5) is fixed diagonally inside the base (1), and a mounting hole (31) is provided on the circuit board (3) for the positioning screw (5) to pass through; and The locking nut (6) is screwed onto the protruding end of the positioning screw (5) by thread.

7. A demodulator for data acquisition according to claim 1, characterized in that: It also includes an auxiliary heat-conducting mechanism (7), which includes: Metal heat-conducting plate (71) located on the bottom side of the circuit board (3); Telescopic rods (72) diagonally fixed between the base (1) and the metal heat-conducting plate (71); and A telescopic spring (73) is fitted onto the telescopic rod (72).

8. A demodulator for data acquisition according to claim 7, characterized in that: Also includes: Fins (711) are fixed at equal intervals to the bottom surface of the metal heat-conducting plate (71).

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