Fixing and supporting device

Abstract

The utility model relates to the technical field of electronic measurement, and provides a fixing and supporting device which comprises a base, an adjusting rod assembly, a regulation and control panel and two clamping assemblies, the adjusting rod assembly is rotationally connected with the base and the regulation and control panel respectively, and the two clamping assemblies are oppositely arranged at intervals and are in sliding connection with the regulation and control panel. The adjusting rod assembly is rotationally connected with the adjusting and controlling panel, the angle of the adjusting and controlling panel can be adjusted, the clamping assembly is slidably connected with the adjusting and controlling panel, and the relative position of the clamping assembly can be adjusted. When the digital oscilloscope is calibrated, the fixed support device provides fixed support for the transmission line, so that the phenomenon that the signal transmission line or a signal transmission copper core in the probe is deformed due to long-term falling of a lead part is avoided, the phenomenon that the transmission line is wound due to rotation of the probe is avoided, and the service life of the signal transmission line is prolonged; the signal transmission line is fixedly supported, and the interface part and the wire part of the signal transmission line are not easy to loosen, so that the stability and the accuracy of verification data are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic measurement, in particular to a fixing support device. Background Art

[0002] As a universal electronic measuring instrument in the time domain, digital oscilloscopes are widely used in medicine, aerospace and other fields. To ensure that the measurement data of digital oscilloscopes are accurate and reliable, they must be calibrated by qualified metrology institutions according to the calibration cycle specified by national standards. During the calibration process, the interfaces at both ends of the signal transmission line are connected to the oscilloscope calibrator and the digital oscilloscope respectively, and the output signal of the oscilloscope calibrator is transmitted to the digital oscilloscope. At present, the common signal transmission lines for calibrating digital oscilloscopes include: the probe transmission line matched with the oscilloscope calibrator and the coaxial cable transmission line. In actual use, the signal transmission line has no fixed support device, which leads to the following problems during calibration: 1) The probe transmission line weighs about 300g in total, and there is no support point directly below. It is completely dependent on the probe interface for connection support, causing the rest of the probe transmission line except the probe interface to be suspended for a long time during operation, so that the rear end of the probe falls, which causes the internal copper core of the front end of the probe to deform, affecting the service life of the probe transmission line; the probe is (13-15) cm long, (1.5-2.0) cm wide, and (5-7) cm high. Due to its long length and high height, the probe transmission line The BNC interface with internal fixation and external rotation is used for connection. The contact area between the interface and the digital oscilloscope under test is small, and the direction of the probe body other than the interface cannot be controlled. There is a lack of tools to fix the direction of the probe, which causes the transmission line to be entangled due to the rotation of the probe, affecting the life of the probe transmission line; 2) The connection end of the coaxial cable transmission line also uses a BNC interface with internal fixation and external rotation. The interface contact area is small, the transmission line is long and hangs from the edge of the desktop to the bottom of the desktop. Because the BNC interface and the coaxial cable conductor part are connected by threads and there is no fixed support at the connection, the weight of the conductor causes the conductor on the outer side of the coaxial cable transmission line interface to twist and fall, resulting in the connection between the BNC interface and the conductor part of the coaxial cable transmission line being easy to loosen and have poor contact. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a device for fixing and supporting a signal transmission line.

[0004] The utility model solves the above-mentioned technical problem with the following technical solution: a fixed support device, comprising a base, an adjusting rod assembly, a control panel and a clamping assembly, wherein the adjusting rod assembly is rotatably connected to the base and the control panel respectively, and the clamping assembly is divided into two groups, and the two groups of the clamping assemblies are arranged relative to each other at intervals and are slidably connected to the control panel.

[0005] The beneficial effects of the utility model are: the fixed support device is fixed by the base, the adjusting rod assembly is rotatably connected to the control panel, and then the angle of the control panel can be adjusted, and the adjusting rod assembly and the control panel are slidably connected, so that the relative position of the clamping assembly can be adjusted, which is convenient for clamping and fixing the signal transmission line. When calibrating the digital oscilloscope, the fixed support device can provide fixed support for the signal transmission line, avoiding the phenomenon of deformation of the signal transmission line or the signal transmission copper core in the probe due to the long-term falling of the wire part, and avoiding the phenomenon of the transmission line being entangled due to the rotation of the probe, thereby extending the service life of the signal transmission line; on the other hand, the signal transmission line has a fixed support, and the interface part and the wire part of the signal transmission line are not easy to loosen, ensuring the stability and accuracy of the calibration data.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the clamping assembly includes a fixed block and a telescopic rod, the fixed block and the regulating panel are slidably connected, one end of the telescopic rod is rotatably connected to the fixed block, and the other end of the telescopic rod abuts against the regulating panel.

[0008] The beneficial effects of adopting the above further scheme are: the regulating panel and the fixed block are slidably connected, so that the relative positions of the two fixed blocks can be adjusted to facilitate clamping, fixing and disassembly of the signal transmission line; one end of the telescopic rod is rotatably connected to the fixed block, and the other end is abutted against the regulating panel, so that after the relative positions of the two fixed blocks are adjusted, the telescopic rod abuts against the regulating panel to fix the signal transmission line so that it does not fall.

[0009] Furthermore, a plurality of arc grooves are provided on the opposite side of the two fixed blocks, and the plurality of arc grooves are arranged at intervals along the height direction of the fixed blocks, and each arc groove extends from one side to the other side along the width direction of the fixed blocks; and vertical support plates are respectively provided on the top surfaces of the opposite sides of the two fixed blocks.

[0010] The beneficial effect of adopting the above further scheme is: an arc groove is set on the opposite side of the two fixed blocks, and the signal transmission line is fixed in the arc groove. When clamping and fixing, the signal transmission line is not easily damaged, and the fixation is more stable; support plates are respectively set on the top surfaces of the opposite sides of the two fixed blocks, and the support plates and the top surfaces of the fixed blocks cooperate together to facilitate the fixation of the support probe transmission line.

[0011] Furthermore, two groups of groove slide rails are arranged on the regulating panel, and the two fixing blocks are slidingly connected to the two groups of groove slide rails in a one-to-one correspondence.

[0012] The beneficial effect of adopting the above further solution is that the provision of two sets of groove slide rails facilitates the sliding of the two fixed blocks so as to adjust the relative positions of the two fixed blocks.

[0013] Furthermore, the two groups of groove slide rails are arranged at two ends of the top surface of the regulating panel.

[0014] The beneficial effect of adopting the above further solution is: two sets of grooved slide rails are arranged at both ends of the top surface of the control panel, and the table in the middle of the control panel can further provide support for the signal transmission line.

[0015] Furthermore, a fixing groove is provided in the middle of the edge of each group of groove slide rails, and the other end of the telescopic rod abuts against the corresponding fixing groove.

[0016] The beneficial effect of adopting the above further solution is: by setting a fixing groove, the other end of the telescopic rod is abutted in the fixing groove, so that after adjusting the relative position of the fixing blocks, the positions of the two fixing blocks will not change arbitrarily, thereby preventing the signal transmission line from loosening and falling.

[0017] Furthermore, the telescopic rod includes a sleeve and a sleeve rod, one end of the sleeve is rotatably connected to the fixed block, the other end of the sleeve is threadedly connected to one end of the sleeve rod, and the other end of the sleeve rod abuts against the corresponding fixed groove.

[0018] The beneficial effect of adopting the above further scheme is: the telescopic rod can be extended or shortened by threaded connection between the sleeve and the sleeve rod, and the telescopic rod can be extended or shortened as needed according to the type of signal transmission line, thereby adjusting the relative positions of the two fixed blocks.

[0019] Furthermore, the adjusting rod assembly includes a support rod one, a support rod two, a locking bolt and a nut, one end of the support rod one is rotatably connected to the regulating panel, the locking bolt passes through the other end of the support rod one and one end of the support rod two and is threadedly connected to the nut, and the other end of the support rod two is rotatably connected to the base.

[0020] The beneficial effect of adopting the above further solution is that the support rod one and the support rod two are threadedly connected, and the height of the control panel can be adjusted by adjusting the angle of the support rod one and the support rod two, thereby adjusting the height of the fixed support device as needed.

[0021] Furthermore, the adjusting rod assembly is rotatably connected to the base and the regulating panel respectively through a fixable universal joint.

[0022] The beneficial effect of adopting the above further solution is that the adjustment rod assembly is connected to the control panel via a fixable universal joint, so that the angle of the control panel can be adjusted.

[0023] Furthermore, the bottom surface of the base has a suction cup.

[0024] The beneficial effect of adopting the above further solution is that by arranging a suction cup on the bottom surface of the base, the fixing support device is conveniently fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the fixed support device of the utility model;

[0026] Figure 2 It is a right side view of the fixed support device of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Base; 2. Adjustment rod assembly; 3. Control panel; 4. Fixed block; 5. Telescopic rod; 6. Support plate. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1-Figure 2 As shown, this embodiment provides a fixed support device, including a base 1, an adjusting rod assembly 2, a control panel 3 and a clamping assembly, the adjusting rod assembly 2 is rotatably connected to the base 1 and the control panel 3 respectively, and the clamping assembly is divided into two groups, the two groups of the clamping assemblies are arranged relative to each other at intervals and are slidably connected to the control panel 3.

[0031] In this embodiment, the fixed support device is fixed by the base 1, and the adjusting rod assembly 2 is rotatably connected to the control panel 3, so that the angle of the control panel 3 can be adjusted. The adjusting rod assembly 2 and the control panel 3 are slidably connected, so that the relative position of the clamping assembly can be adjusted, which is convenient for clamping and fixing the signal transmission line. When calibrating the digital oscilloscope, the fixed support device can provide fixed support for the signal transmission line, avoiding the phenomenon that the signal transmission line or the signal transmission copper core in the probe is deformed due to the long-term falling of the wire part, and avoiding the phenomenon that the transmission line is entangled due to the rotation of the probe, thereby extending the service life of the signal transmission line; on the other hand, the signal transmission line has a fixed support, and the interface part and the wire part of the signal transmission line are not easy to loosen, ensuring the stability and accuracy of the calibration data.

[0032] Based on any of the above schemes, the clamping assembly includes a fixed block 4 and a telescopic rod 5, the fixed block 4 and the regulating panel 3 are slidingly connected, one end of the telescopic rod 5 is rotatably connected to the fixed block 4, and the other end of the telescopic rod 5 is abutted against the regulating panel 3.

[0033] The regulating panel 3 and the fixing block 4 are slidably connected, so that the relative positions of the two fixing blocks 4 can be adjusted to facilitate clamping, fixing and disassembling of the signal transmission line; one end of the telescopic rod 5 is rotatably connected to the fixing block 4, and the other end is abutted against the regulating panel 3, so that after the relative positions of the two fixing blocks 4 are adjusted, the telescopic rod 5 abuts against the regulating panel 3 to fix the position of the fixing block 4 to prevent the signal transmission line from falling.

[0034] Based on any of the above schemes, a plurality of arc grooves are provided on the opposite side of the two fixed blocks 4, and the plurality of arc grooves are arranged at intervals along the height direction of the fixed block 4, and each arc groove extends from one side to the other side along the width direction of the fixed block 4; and vertical support plates 6 are respectively provided on the top surfaces of the opposite sides of the two fixed blocks 4.

[0035] An arc groove is set on the opposite side of the two fixing blocks 4, and the signal transmission line is fixed on the two opposite surfaces of the two fixing blocks 4. When clamped and fixed, the signal transmission line is less likely to be damaged than the flat clamping surface, and the setting of the arc groove increases the friction force of the clamping surface, thereby making the signal transmission line more stably fixed; support plates 6 are respectively set on the top surfaces of the opposite sides of the two fixing blocks 4, and the support plates 6 and the top surfaces of the fixing blocks 4 cooperate together to facilitate the fixation of the support probe transmission line.

[0036] Specifically, the support plate 6 and the fixing block 4 are formed in one piece, or are fixedly connected via a locking component.

[0037] On the basis of any of the above solutions, two groups of groove slide rails are arranged on the regulating panel 3, and the two fixing blocks 4 are slidingly connected to the two groups of groove slide rails in a one-to-one corresponding manner.

[0038] By providing two groups of groove slide rails, it is convenient for the two fixing blocks 4 to slide correspondingly in the two groups of groove slide rails, thereby adjusting the relative positions of the two fixing blocks 4.

[0039] Optionally, two groups of grooved slide rails are extended along the slide rail direction into the control panel 3 to form triangular grooves, square grooves or grooves of other shapes, and correspondingly, protrusions of matching shapes are correspondingly provided on the two fixing blocks 4 .

[0040] Based on any of the above solutions, the two groups of groove slide rails are arranged at two ends of the top surface of the regulating panel 3.

[0041] Two sets of grooved slide rails are arranged at two ends of the top surface of the control panel 3, and the table in the middle of the control panel 3 can further provide support for the signal transmission line.

[0042] Specifically, the width of the table in the middle of the control panel 3 is smaller than the minimum diameter of the signal transmission line. Figure 1 As shown, the table top is a convex structure between the ends of the two sets of groove slide rails that are close to each other.

[0043] On the basis of any of the above solutions, a fixing groove is provided in the middle of the edge of each group of groove slide rails, and the other end of the telescopic rod 5 abuts against the corresponding fixing groove.

[0044] By providing the fixing groove, the other end of the telescopic rod 5 is abutted in the fixing groove, so that after the relative position of the fixing blocks 4 is adjusted, the positions of the two fixing blocks 4 will not change arbitrarily, thereby preventing the signal transmission line from loosening and falling.

[0045] Based on any of the above schemes, the telescopic rod 5 includes a sleeve and a sleeve rod, one end of the sleeve is rotatably connected to the fixed block 4, the other end of the sleeve is threadedly connected to one end of the sleeve rod, and the other end of the sleeve rod abuts against the corresponding fixed groove.

[0046] The sleeve and the sleeve rod are threadedly connected to achieve the extension or shortening of the telescopic rod 5 . According to the type of the signal transmission line, the telescopic rod 5 is extended or shortened as needed, thereby adjusting the relative positions of the two fixing blocks 4 .

[0047] In a specific example, one end of the sleeve is rotatably connected to the fixed block 4, the inner wall of the other end of the sleeve is provided with an internal thread, the outer wall of one end of the sleeve rod is provided with an external thread, the other end of the sleeve is threadedly connected to one end of the sleeve rod, and the other end of the sleeve rod abuts in the corresponding fixed groove. When the relative positions of the two fixed blocks 4 need to be adjusted, since the other end of the sleeve rod abuts in the fixed groove, it is movable, and according to actual needs, the sleeve rod is screwed to extend or shorten the telescopic rod 5, thereby adjusting the relative positions of the fixed blocks 4.

[0048] Optionally, the telescopic rod 5 includes two hollow or solid rods and a locking sleeve.

[0049] In a specific example, the telescopic rod 5 is composed of two solid rods and a locking sleeve. The cross-sectional diameters of the two solid rods are the same. The outer walls of the opposite ends of the two solid rods are provided with external threads, and the inner wall of the locking sleeve is provided with internal threads. When the relative position of the two fixed blocks 4 needs to be adjusted, the locking sleeve is screwed to move the distance between the two hollow rods closer or further away. After adjusting the position, the locking sleeve is screwed to lock and fix it.

[0050] Based on any of the above schemes, the adjusting rod assembly 2 includes a support rod 1, a support rod 2, a locking bolt and a nut. One end of the support rod 1 is rotatably connected to the regulating panel 3, the locking bolt passes through the other end of the support rod 1 and one end of the support rod 2 and is threadedly connected to the nut, and the other end of the support rod 2 is rotatably connected to the base 1.

[0051] The support rod 1 and the support rod 2 are positioned by tightening and loosening the locking bolts and nuts. When the locking bolts and nuts are loosened, the height of the control panel 3 is adjusted by adjusting the angle of the support rod 1 and the support rod 2, thereby adjusting the height of the fixed support device as needed.

[0052] Specifically, when the angle between the support rod 1 and the support rod 2 is 180°, the height of the regulating panel 3 is the highest, and when the angle between the support rod 1 and the support rod 2 is close to 0° or 360°, the height of the regulating panel 3 is lower.

[0053] On the basis of any of the above solutions, both ends of the adjusting rod assembly 2 are rotatably connected to the base 1 and the regulating panel 3 respectively through a fixable universal joint.

[0054] The adjusting rod assembly 2 is connected to the regulating panel 3 via a fixable universal joint, so that the angle of the regulating panel 3 can be adjusted.

[0055] Specifically, the fixable universal joint can be loosened to adjust the angle of the control panel 3 ; the fixable universal joint can be locked to fix the angle of the control panel 3 .

[0056] Optionally, two ends of the adjusting rod assembly 2 are respectively hinged to the base 1 and the regulating panel 3 through pins.

[0057] Based on any of the above solutions, the bottom surface of the base 1 has a suction cup.

[0058] By arranging a suction cup on the bottom surface of the base 1, it is convenient to fix the fixing support device.

[0059] Specifically, a knob may be provided on the outer wall of the base 1 , the knob and the base 1 are threadedly connected, and the knob passes through the outer wall of the base 1 and is fixedly connected to the suction cup.

[0060] In one specific example, a cavity is formed inside the base 1, a suction cup is provided on the bottom surface of the base 1, and a knob is provided on the top surface of the base 1. When the base 1 needs to be fixed, the base 1 is fitted with the mounting plane and the knob is turned out to increase the pressure difference between the inside and outside of the suction cup, thereby increasing the adsorption force of the suction cup to stabilize the base 1.

[0061] In a specific example, before calibrating the digital oscilloscope, according to the position of the digital oscilloscope, the fixed support device is fixed below the channel port of the digital oscilloscope through the suction cup of the fixed support device base 1, and the corresponding type of signal transmission line is selected according to actual needs. When the probe transmission line is selected, one end of the probe transmission line is connected to the digital oscilloscope, and the other end is connected to the oscilloscope calibrator. According to needs, the nut is screwed to adjust the angle of the support rod 1 and the support rod 2, thereby adjusting the height of the control panel 3. According to actual needs, if the angle of the control panel 3 needs to be adjusted, since the support rod 1 and the control panel 3 are connected through a fixable universal joint, the fixable universal joint is loosened, and after manually adjusting the angle of the control panel 3, the fixable universal joint is locked to fix the angle of the control panel 3. Place a probe with a certain weight on the top surface of two fixed blocks 4, first adjust the length of a telescopic rod 5 to fix the position of a fixed block 4, and then slide another fixed block 4 according to the size of the probe so that the two opposite faces of the probe abut against the opposite faces of the two support plates 6, and at the same time extend or shorten another telescopic rod 5 as needed to fix the relative position of the two fixed blocks 4, thereby fixing the support probe transmission line. Since the entire probe is fixedly supported, the rear end of the probe is prevented from falling, thereby protecting the copper core inside the front end of the probe from deformation, and the probe transmission line is not easy to be damaged, thereby extending the service life of the probe transmission line. If it is a coaxial cable transmission line, it is the same as the probe transmission line fixing step, except that the coaxial cable transmission line is to fix the conductor part on the arc groove of the opposite surface of the two fixed blocks 4. The fixed support device supports and fixes the conductor part of the coaxial cable transmission line, thereby avoiding the interface part and the conductor part of the transmission line from being easily loosened, thereby causing poor contact and affecting the normal operation of the calibration work. In actual use, the steps of fixing the support transmission line can be adjusted at any time according to the convenience of operation.

[0062] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fixed support device, characterized in that: The invention comprises a base (1), an adjusting rod assembly (2), a control panel (3) and a clamping assembly, wherein two ends of the adjusting rod assembly (2) are rotatably connected to the base (1) and the control panel (3) respectively, and the clamping assembly comprises two groups, the two groups of the clamping assemblies are arranged opposite to each other at a distance and are slidably connected to the control panel (3).

2. A fixed support device according to claim 1, characterized in that: The clamping assembly comprises a fixed block (4) and a telescopic rod (5); the fixed block (4) and the regulating panel (3) are slidably connected; one end of the telescopic rod (5) is rotatably connected to the fixed block (4); and the other end of the telescopic rod (5) abuts against the regulating panel (3).

3. A fixing support device according to claim 2, characterized in that: A plurality of arcuate grooves are provided on one side opposite to the two fixing blocks (4), the plurality of arcuate grooves are arranged at intervals along the height direction of the fixing blocks (4), and each arcuate groove extends from one side to the other side along the width direction of the fixing blocks (4); and vertical support plates (6) are respectively provided on the top surfaces of the opposite sides of the two fixing blocks (4).

4. A fixing support device according to claim 3, characterized in that: The regulating panel (3) is provided with two groups of groove slide rails, and the two fixing blocks (4) are slidably connected to the two groups of groove slide rails in a one-to-one correspondence.

5. A fixing support device according to claim 4, characterized in that: Two groups of groove slide rails are arranged at two ends of the top surface of the regulating panel (3).

6. A fixing support device according to claim 5, characterized in that: A fixing groove is arranged in the middle of the edge of each group of groove slide rails, and the other end of the telescopic rod (5) abuts against the corresponding fixing groove.

7. A fixing support device according to claim 6, characterized in that: The telescopic rod (5) comprises a sleeve and a sleeve rod, one end of the sleeve is rotatably connected to the fixed block (4), the other end of the sleeve is threadedly connected to one end of the sleeve rod, and the other end of the sleeve rod abuts against the corresponding fixed groove.

8. A fixing support device according to claim 1, characterized in that: The regulating rod assembly (2) comprises a first support rod, a second support rod, a locking bolt and a nut; one end of the first support rod is rotatably connected to the regulating panel (3); the locking bolt passes through the other end of the first support rod and one end of the second support rod and is threadedly connected to the nut; the other end of the second support rod is rotatably connected to the base (1).

9. A fixing support device according to any one of claims 1 to 8, characterized in that: The regulating rod assembly (2) is rotatably connected to the base (1) and the regulating panel (3) respectively via a fixable universal joint.

10. A fixing support device according to claim 9, characterized in that: The bottom surface of the base (1) is provided with a suction cup.

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