CN211956261U - FPGA image selection DDS device - Google Patents

Abstract

The utility model discloses a DDS device is selected to FPGA image, including DDS calibration equipment main part, fixed block and handheld frame, the fixed surface of DDS calibration equipment main part installs the fixed block, and the inside of fixed block is provided with the first groove of accomodating to the first internally mounted who accomodates the groove has coupling spring, coupling spring and stopper interconnect, and the stopper passes the first groove and the spacing groove interconnect of accomodating to the spacing groove sets up the central point at the carousel and puts, the inside at the fixed block is installed to the carousel. This DDS device is selected to FPGA image, handheld frame rotate through plectane, connecting axle and carousel and accomodate and the work that expandes on the fixed block, are connected through the block of stopper and spacing groove simultaneously, can carry out positioning work to the rotation of handheld frame, avoid the handheld frame to take place the rotation phenomenon between accomodating and the expansion back and the fixed block.

Description

FPGA image selection DDS device

Technical Field

The utility model relates to an electronic instrument technical field specifically is a FPGA image selection DDS device.

Background

The DDS device is mainly a direct digital frequency synthesizer, and is used in the field of electronic instruments, thereby facilitating the digital signal processing work of equipment and realizing the adjustment of various numbers.

According to the common FPGA image selection DDS device in the market at present, when the FPGA image selection DDS device needs to be carried, the FPGA image selection DDS device is generally carried by holding a handle by hand, but a rotating structure is formed between the handle and the FPGA image selection DDS device, so that a large shaking phenomenon occurs between the handle and the FPGA image selection DDS device in the carrying process, and in order to solve the problems, innovative design is carried out on the basis of the original FPGA image selection DDS device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a DDS device is selected to FPGA image to solve common DDS device is selected to FPGA image on the existing market that proposes in the above-mentioned background art, generally hold to carry through the handle, nevertheless constitute revolution mechanic between handle and the DDS device is selected to FPGA image, thereby lead to taking place great problem of rocking the phenomenon between the in-process handle that carries and the DDS device is selected to FPGA image.

In order to achieve the above object, the utility model provides a following technical scheme: a DDS device for selecting FPGA images comprises a DDS calibration device main body, a fixed block and a handheld frame, wherein the fixed block is fixedly arranged on the outer surface of the DDS calibration device main body, a first accommodating groove is formed in the fixed block, a connecting spring is arranged in the first accommodating groove, the connecting spring is connected with a limiting block, the limiting block penetrates through the first accommodating groove and the limiting groove to be connected, the limiting groove is arranged at the central position of a turntable, the turntable is arranged in the fixed block, a connecting shaft is fixedly arranged at the center of the left surface of the turntable, the connecting shaft penetrates through the fixed block and is fixedly connected with the outer surface of a circular plate, the handheld frame is fixedly arranged on the top surface of the circular plate, a second accommodating groove is formed in the circular plate, a limiting plate is arranged in the second accommodating groove, a push plate is fixedly arranged on the left surface of the limiting plate, and the push plate penetrates through the, the right surface of the limiting plate is fixedly provided with a push rod, the push rod penetrates through the circular plate and the through hole to be connected with the limiting groove, and the through hole is formed in the center of the connecting shaft.

Preferably, the limiting block and the fixing block form a telescopic structure through the first accommodating groove and the connecting spring, and the fixing blocks are symmetrically distributed about a longitudinal center line of the DDS calibration device main body.

Preferably, the side view of the limiting block is square, the connecting mode of the limiting block and the limiting groove is clamped and connected, and the connecting mode of the limiting block and the push rod is jointed and connected.

Preferably, the circular plate and the fixed block form a rotating structure through the connecting shaft and the rotating disc, and the diameters of the circular plate and the rotating disc are larger than the diameter of the connecting shaft.

Preferably, the limit plate and the circular plate form a sliding structure through the second accommodating groove, and the diameter of the limit plate is larger than that of the push plate.

Preferably, the push rod forms a sliding structure with the circular plate, the through hole and the limiting groove respectively, the diameter of the push rod is smaller than the length and the width of the limiting block, and the tail end of the push rod is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: the FPGA image selects a DDS device,

1. the handheld frame performs rotary storage and expansion work on the fixed block through the circular plate, the connecting shaft and the rotary disc, and meanwhile, the handheld frame can be positioned by the clamping connection of the limiting block and the limiting groove, so that the phenomenon that the handheld frame rotates between the fixed block and the stored and expanded handheld frame is avoided, and the carrying work of the DDS calibration device main body is facilitated;

2. the side view of the limiting block is square, so that the turntable can conveniently perform positioning work after rotating 90 degrees, and meanwhile, after the limiting block is aligned with the limiting groove, the limiting block can be automatically pushed into the limiting groove to be clamped through the elastic force of the connecting spring, so that the convenience of the positioning work is improved;

3. staff's accessible is to pressing of push pedal, makes the push pedal release the inside of spacing groove with the stopper through limiting plate and push rod to carry out the work of relieving of location, make things convenient for the manual work of stirring to the handheld frame of follow-up.

Drawings

FIG. 1 is a schematic view of the overall front view structure of the present invention;

FIG. 2 is a schematic view of the overall left-side view structure of the present invention;

fig. 3 is a schematic view of the front cross-sectional structure of the fixing block and the circular plate of the present invention;

FIG. 4 is a schematic side view of the stopper of the present invention;

fig. 5 is the utility model discloses spatial structure schematic is connected to limiting plate and push rod.

In the figure: 1. a DDS calibration device main body; 2. a fixed block; 3. a first receiving groove; 4. a connecting spring; 5. a limiting block; 6. a limiting groove; 7. a turntable; 8. a connecting shaft; 9. a circular plate; 10. a hand-held frame; 11. a second receiving groove; 12. a limiting plate; 13. pushing the plate; 14. a push rod; 15. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an FPGA image selection DDS device comprises a DDS calibration device main body 1, a fixed block 2 and a handheld frame 10, wherein the fixed block 2 is fixedly installed on the outer surface of the DDS calibration device main body 1, a first accommodating groove 3 is formed in the fixed block 2, a connecting spring 4 is installed in the first accommodating groove 3, the connecting spring 4 is connected with a limiting block 5, the limiting block 5 penetrates through the first accommodating groove 3 and is connected with a limiting groove 6, the limiting groove 6 is arranged at the central position of a turntable 7, the turntable 7 is installed in the fixed block 2, a connecting shaft 8 is fixedly installed at the center of the left surface of the turntable 7, the connecting shaft 8 penetrates through the fixed block 2 and is fixedly connected with the outer surface of a circular plate 9, the handheld frame 10 is fixedly installed on the top surface of the circular plate 9, a second accommodating groove 11 is formed in the circular plate 9, and a limiting plate 12 is installed in the second accommodating groove 11, the left surface of the limit plate 12 is fixedly provided with a push plate 13, the push plate 13 penetrates through the left surface of the circular plate 9, the right surface of the limit plate 12 is fixedly provided with a push rod 14, the push rod 14 penetrates through the circular plate 9 and the through hole 15 to be connected with the limit groove 6, and the through hole 15 is arranged at the center of the connecting shaft 8.

The limiting block 5 and the fixing block 2 form a telescopic structure through the first accommodating groove 3 and the connecting spring 4, and the fixing block 2 is symmetrically distributed about the longitudinal center line of the DDS calibration device main body 1, so that the limiting block 5 is pushed by the elastic force of the connecting spring 4 to automatically slide, and subsequent positioning is facilitated.

Stopper 5 look sideways at for the square, and stopper 5 is connected for the block with spacing groove 6's connected mode to stopper 5 is connected for the laminating with push rod 14's connected mode, is favorable to being connected through stopper 5 and spacing groove 6's block, can restrict the position of carousel 7, avoids carousel 7 to take place to rotate the phenomenon.

The plectane 9 passes through connecting axle 8 and carousel 7 and constitutes revolution mechanic with fixed block 2, and the diameter of plectane 9 and carousel 7 all is greater than the diameter of connecting axle 8, and the staff of being convenient for makes the handheld frame 10 drive plectane 9 and rotates through stirring to handheld frame 10, makes things convenient for handheld frame 10 to carry out the work of rotatory expansion and accomodating.

The limiting plate 12 forms a sliding structure with the circular plate 9 through the second accommodating groove 11, and the diameter of the limiting plate 12 is larger than that of the pushing plate 13, so that the pushing plate 13 can push the limiting plate 12 to slide conveniently by pressing the pushing plate 13.

The push rod 14 forms a sliding structure with the circular plate 9, the through hole 15 and the limiting groove 6 respectively, the diameter of the push rod 14 is smaller than the length and the width of the limiting block 5, and the tail end of the push rod 14 is arc-shaped, so that the limiting block 12 can push the push rod 14 to slide, and the push rod 14 can push the limiting block 5 out of the limiting groove 6 to perform positioning releasing work.

The working principle is as follows: according to fig. 2-5, when the worker needs to carry and transfer the DDS calibration device main body 1, the worker can manually press the push plate 13, so that the push plate 13 pushes the limit plate 12 to slide in the circular plate 9 through the second accommodating groove 11, the limit plate 12 pushes the push rod 14 to slide in the circular plate 9, the through hole 15 and the limit groove 6, the push rod 14 pushes the limit block 5 to push the limit block 5, the limit block 5 is completely accommodated in the first accommodating groove 3 to be separated from the limit groove 6, and the limit block 5 pushes the connecting spring 4 to perform retraction operation; according to the figures 1-3, the hand-held frame 10 is manually shifted to work, so that the hand-held frame 10 drives the circular plate 9 to rotate and unfold on the fixed block 2 through the connecting shaft 8 and the turntable 7, and the hand-held frame 10 rotates by 90 degrees; according to the figures 1-5, the push plate 13 is manually loosened, the limiting block 5 is pushed by the elasticity of the connecting spring 4 to slide according to the principle, so that the limiting block 5 slides into the limiting groove 6 to be clamped and connected, so that the limit block 5 pushes the push rod 14 to reset, and simultaneously the limit plate 12 controls the maximum sliding distance of the push rod 14, thereby preventing the limiting block 5 from sliding out of the first accommodating groove 3, facilitating the positioning work of the position of the turntable 7 on the fixed block 2, facilitating the subsequent working personnel to carry the DDS calibration device main body 1 through the handheld frame 10, the DDS calibration device main body 1 can not shake, is convenient to carry, the above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a DDS device is selected to FPGA image, includes DDS calibration equipment main part (1), fixed block (2) and handheld frame (10), its characterized in that: the DDS calibration device comprises a DDS calibration device main body (1), wherein a fixed block (2) is fixedly arranged on the outer surface of the DDS calibration device main body (1), a first accommodating groove (3) is formed in the fixed block (2), a connecting spring (4) is arranged inside the first accommodating groove (3), the connecting spring (4) is connected with a limiting block (5), the limiting block (5) penetrates through the first accommodating groove (3) and a limiting groove (6) to be connected, the limiting groove (6) is arranged at the central position of a turntable (7), the turntable (7) is arranged inside the fixed block (2), a connecting shaft (8) is fixedly arranged at the center of the left surface of the turntable (7), the connecting shaft (8) penetrates through the fixed block (2) to be fixedly connected with the outer surface of a circular plate (9), a handheld frame (10) is fixedly arranged on the top surface of the circular plate (9), and a second accommodating groove (11) is arranged inside the circular plate (, and the internally mounted of groove (11) is accomodate to the second has limiting plate (12), the left fixed surface of limiting plate (12) installs push pedal (13), and push pedal (13) pass the left surface of plectane (9), the right fixed surface of limiting plate (12) installs push rod (14), and push rod (14) pass plectane (9) and through-hole (15) and limiting groove (6) interconnect to through-hole (15) set up the central point at connecting axle (8) and put.

2. The FPGA image selection DDS device of claim 1, wherein: the limiting block (5) and the fixing block (2) form a telescopic structure through the first accommodating groove (3) and the connecting spring (4), and the fixing block (2) is symmetrically distributed about a longitudinal center line of the DDS calibration device main body (1).

3. The FPGA image selection DDS device of claim 1, wherein: the side view of the limiting block (5) is square, the connecting mode of the limiting block (5) and the limiting groove (6) is connected in a clamping mode, and the connecting mode of the limiting block (5) and the push rod (14) is connected in a fitting mode.

4. The FPGA image selection DDS device of claim 1, wherein: the circular plate (9) and the fixed block (2) form a rotating structure through the connecting shaft (8) and the rotary disc (7), and the diameters of the circular plate (9) and the rotary disc (7) are larger than that of the connecting shaft (8).

5. The FPGA image selection DDS device of claim 1, wherein: the limiting plate (12) and the circular plate (9) form a sliding structure through the second accommodating groove (11), and the diameter of the limiting plate (12) is larger than that of the push plate (13).

6. The FPGA image selection DDS device of claim 1, wherein: the push rod (14) forms a sliding structure with the circular plate (9), the through hole (15) and the limiting groove (6) respectively, the diameter of the push rod (14) is smaller than the length and the width of the limiting block (5), and the tail end of the push rod (14) is arc-shaped.

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