Fixing support for geophysical electromagnetic probe

Abstract

The fixing support for the geophysical electromagnetic probe comprises a spherical sleeve, the top and the bottom of the spherical sleeve are open, a hollow universal ball is movably arranged in the spherical sleeve in a sleeved mode, and the bottom of the hollow universal ball is fixedly connected with a balancing weight. The top of the hollow universal ball is fixedly connected with an electromagnetic probe clamping and supporting assembly with the weight smaller than that of the balancing weight, the outer side of the spherical sleeve is fixedly sleeved with an annular supporting plate, and the annular supporting plate is provided with a four-point synchronous clamping and fixing mechanism matched with the hollow universal ball. By arranging a series of structures, the support height can be flexibly adjusted according to the use height of the electromagnetic probe, the orientation can be adjusted through horizontal rotation, self-adaptive rapid leveling can be conveniently carried out in a gravity downward mode when the electromagnetic probe is obliquely placed, and personnel do not need to observe and judge and carry out four-corner adjustment one by one; and the leveling efficiency, convenience and accuracy are improved, the electromagnetic probe can be conveniently clamped and supported, and personnel use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic probe brackets, in particular to a fixing bracket for geophysical electromagnetic probes. Background Technique

[0002] Mineral geophysics is a comprehensive discipline that studies the Earth and searches for mineral resources inside the Earth through quantitative physical methods. The research scope includes the Earth's crust, mantle, core, and atmosphere. The research content includes the internal structure of the Earth, the theory of earthquake sources, the theory of seismic wave propagation, etc. Such as subduction zones and mid-ocean ridges. When studying, a geophysical magnetotelluric instrument needs to be used. When using the detector, a bracket is required to support the probe of the geophysical magnetotelluric instrument.

[0003] In this regard, according to the retrieval report of the novelty search agency, the patent with publication number CN212781260U discloses a fixing bracket for mineral geophysical electromagnetic probes, including a mounting base. Four corners of the bottom of the mounting base are fixedly installed with fixed sleeves. The fixed sleeves are internally threaded with fixed screws. The bottom end of the fixed screw extends below the corresponding fixed sleeve and is set as a conical structure. A knob is fixedly sleeved on the fixed screw and located below the corresponding fixed sleeve. A rotation hole is opened at the top of the mounting base, and a fixed seat is rotatably installed in the rotation hole; it is convenient to quickly and non-destructively clamp and fix the electromagnetic probe. By adjusting the four fixed screws separately, the levelness of the mounting base can be adjusted, so that the mounting base is still in a horizontal state when used on uneven ground, and the orientation angle of the electromagnetic probe can be adjusted according to actual needs after fixation.

[0004] The above-mentioned fixing bracket for mineral geophysical electromagnetic probes disclosed in the above technology is supported by four separately adjustable fixed screws at the bottom, and can be adjusted when placed obliquely. However, there are the following deficiencies in use: it needs to separately adjust the bolts at four positions and manually observe and judge whether it is leveled. It cannot perform the leveling work adaptively and quickly by blind operation, and the leveling efficiency, convenience and accuracy are not ideal; it needs to be improved. In view of this, this application proposes a fixing bracket for geophysical electromagnetic probes to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing bracket for geophysical electromagnetic probes to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A fixing bracket for a geophysical electromagnetic probe, including a spherical sleeve with openings at both the top and bottom. A hollow universal ball is movably sleeved inside the spherical sleeve. A counterweight block is fixedly connected to the bottom of the hollow universal ball, and an electromagnetic probe clamping and supporting assembly with a weight smaller than that of the counterweight block is fixedly connected to the top of the hollow universal ball. The provided counterweight block is used to drive the hollow universal ball to adaptively rotate inside the spherical sleeve based on the principle of gravity downward when placed obliquely, so as to drive the electromagnetic probe clamping and supporting assembly to automatically rotate to the horizontal. The electromagnetic probe clamping and supporting assembly is used to clamp and support the electromagnetic probe, preventing the phenomenon that the clamping and supporting are inclined due to the inclined placement, which affects the use. The flexible rotation mode of the hollow universal ball can also be used for personnel to rotate and adjust the clamping orientation of the upper part.

[0007] An annular support plate is fixedly sleeved on the outer side of the spherical sleeve. A four-point synchronous clamping mechanism matched with the hollow universal ball is installed on the annular support plate. The four-point synchronous clamping mechanism includes a combined drive and extrusion assembly fixedly connected to the top of the annular support plate. Four inclined connecting rods are hinged to the four sides of the bottom of the combined drive and extrusion assembly. The two opposite connecting rods are symmetrically arranged. Rectangular grooves are opened on the inner walls of the four sides of the annular support plate. Clamping assemblies are installed in the rectangular grooves. The top of the clamping assemblies is hinged to the bottom ends of the corresponding connecting rods. The combined drive and extrusion assembly is used to drive the four connecting rods to rotate synchronously up and down. The four clamping assemblies are used to synchronously clamp and lock the adaptively adjusted hollow universal ball at four points to prevent swinging.

[0008] Three telescopic support components are fixedly connected to the bottom of the annular support plate at equal intervals in a ring shape. The telescopic support components are used for supporting at the lower part and allowing personnel to adjust the support height.

[0009] Preferably, the electromagnetic probe clamping and supporting assembly includes a U-shaped support fixedly connected to the top of the hollow universal ball. Two symmetrically arranged clamping blocks are arranged inside the U-shaped support. T-shaped screws are rotatably installed on the mutually repulsive sides of the two clamping blocks. The U-shaped support is threadedly sleeved on the two T-shaped screws. Horizontal guide rods are fixedly connected to the bottoms of the mutually repulsive sides of the two clamping blocks. The U-shaped support is slidably sleeved on the two horizontal guide rods. Anti-slip rubber sheets are adhesively fixed to the mutually adjacent sides of the two clamping blocks.

[0010] Preferably, the combined drive and extrusion assembly includes an internally threaded sleeve fixedly connected to the top of the annular support plate. An externally threaded sleeve is threadedly sleeved inside the internally threaded sleeve. A plurality of handle rods are fixedly connected to the outer side top of the externally threaded sleeve at equal intervals in a ring shape. A lifting ring is rotatably installed at the bottom of the externally threaded sleeve. The bottom of the lifting ring is hinged to the tops of the four connecting rods. The hollow universal ball is located inside the externally threaded sleeve and the lifting ring.

[0011] Preferably, the clamping assembly includes a rectangular pressing block slidably sleeved in the corresponding rectangular groove. A spring is fixedly connected between the rectangular pressing block and the inner wall of the corresponding rectangular groove on the side away from its opening. The spherical sleeve is slidably sleeved on the four rectangular pressing blocks. Anti-slip rubber blocks are adhesively fixed to the adjacent sides of the four rectangular pressing blocks. The hollow universal ball is located between the four anti-slip rubber blocks. The top of the rectangular pressing block is hinged to the bottom end of the corresponding connecting rod.

[0012] Preferably, the telescopic support assembly includes an outer tube fixedly connected to the bottom of the annular support plate and inclined outward. An inner rod is slidably sleeved in the outer tube. The bottom end of the inner rod is fixedly connected with a support foot. The outer side of the inner rod is in movable contact with a knob-type bolt. The outer tube is threadedly sleeved on the corresponding knob-type bolt. The counterweight block is located between the three outer tubes.

[0013] Preferably, threaded holes are formed in the inner walls on both sides of the U-shaped support, and the threaded holes are threadedly connected with the corresponding T-shaped screws.

[0014] Preferably, a rectangular through hole is formed in the top inner wall of the rectangular groove. The connecting rod is located in the corresponding rectangular through hole and does not contact the inner wall of the rectangular through hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. By the cooperation of the spherical sleeve, the hollow universal ball, the annular support plate and the telescopic support assembly, the support height can be flexibly adjusted according to the use height of the electromagnetic probe, and the horizontal rotation adjustment of the orientation can be carried out by using the flexible rotation mode of the hollow universal ball, improving the use flexibility.

[0017] 2. By the cooperation of the spherical sleeve, the hollow universal ball, the annular support plate, the counterweight block, the combined drive extrusion assembly and the clamping assembly, when placed obliquely, the self-adaptive rapid leveling can be carried out by using the downward gravity, and after leveling, the hollow universal ball can be locked and stabilized synchronously at four points to prevent shaking, without the need for personnel to observe and judge and adjust the four corners one by one, improving the leveling efficiency, convenience and accuracy.

[0018] 3. Through the electromagnetic probe clamping and supporting assembly provided, the electromagnetic probe can be clamped and supported. With the above self-adaptive leveling method, the horizontal use of the electromagnetic probe can be ensured, and the phenomenon that the clamping and supporting is inclined due to the inclined placement and affects the use can be prevented.

[0019] By setting a series of structures, the utility model is convenient for flexibly adjusting the support height and horizontally rotating the adjustment orientation according to the use height of the electromagnetic probe, is convenient for carrying out self-adaptive rapid leveling by using the downward gravity when placed obliquely, without the need for personnel to observe and judge and adjust the four corners one by one, improving the leveling efficiency, convenience and accuracy, and is convenient for clamping and supporting the electromagnetic probe, facilitating the use by personnel. Description of the Drawings

[0020] Figure 1 Schematic three - dimensional structure diagram of a fixing bracket for a geophysical electromagnetic probe proposed by the present utility model;

[0021] Figure 2 Schematic front - view sectional structure diagram of a fixing bracket for a geophysical electromagnetic probe proposed by the present utility model;

[0022] Figure 3 is Figure 2 Schematic enlarged structure diagram of part A in

[0023] In the figure: 1, spherical sleeve; 2, hollow universal ball; 3, counterweight; 4, U - shaped support; 401, T - shaped screw; 402, clamping block; 403, transverse guide rod; 5, annular support plate; 501, rectangular groove; 502, rectangular pressing block; 503, anti - slip rubber block; 504, connecting rod; 505, internal thread sleeve; 506, external thread sleeve; 507, spring; 508, lifting ring; 6, outer tube; 601, inner rod; 602, knob - type bolt. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] As Figures 1 to 3 shown, a fixing bracket for a geophysical electromagnetic probe proposed in this embodiment includes a spherical sleeve 1 with openings at both the top and the bottom. A hollow universal ball 2 is movably sleeved inside the spherical sleeve 1. A counterweight 3 is fixedly connected to the bottom of the hollow universal ball 2, and an electromagnetic probe clamping and supporting assembly with a weight smaller than that of the counterweight 3 is fixedly connected to the top of the hollow universal ball 2. The provided counterweight 3 is used to drive the hollow universal ball 2 to adaptively rotate inside the spherical sleeve 1 by using the principle of gravity downward when placed obliquely, so as to drive the electromagnetic probe clamping and supporting assembly to automatically rotate to the horizontal by using the hollow universal ball 2. The electromagnetic probe clamping and supporting assembly is used to clamp and support the electromagnetic probe, preventing the phenomenon that the clamping and supporting is inclined due to the inclined placement, which affects the use. The flexible rotation mode of the hollow universal ball 2 can also be used for personnel to rotate and adjust the clamping orientation of the upper part;

[0026] An annular support plate 5 is fixedly sleeved on the outer side of the spherical sleeve 1. A four-point synchronous clamping mechanism that cooperates with the hollow universal ball 2 is installed on the annular support plate 5. The four-point synchronous clamping mechanism includes a combined drive and extrusion assembly fixedly connected to the top of the annular support plate 5. Four inclined connecting rods 504 are hinged to the four sides of the bottom of the combined drive and extrusion assembly. The two opposite connecting rods 504 are symmetrically arranged. Rectangular grooves 501 are formed on the inner walls of the four sides of the annular support plate 5. Clamping assemblies are installed in the rectangular grooves 501. The top of the clamping assembly is hinged to the bottom end of the corresponding connecting rod 504. A rectangular through hole is formed on the top inner wall of the rectangular groove 501. The connecting rod 504 is located in the corresponding rectangular through hole and does not contact the inner wall of the rectangular through hole, serving the effect of allowing the connecting rod 504 to pass through. The combined drive and extrusion assembly is used to drive the four connecting rods 504 to rotate synchronously up and down. The four clamping assemblies are used to synchronously clamp and lock the self-adaptively adjusted hollow universal ball 2 from four points to prevent swinging when the four connecting rods 504 rotate downward. Three telescopic support assemblies are fixedly connected to the bottom of the annular support plate 5 at equal intervals in a ring shape. The telescopic support assemblies are used to support from the lower part and allow personnel to adjust the support height.

[0027] Specifically, the electromagnetic probe clamping assembly includes a U-shaped support 4 fixedly connected to the top of the hollow universal ball 2. Inside the U-shaped support 4, there are two symmetrically arranged clamping blocks 402. On the mutually repulsive sides of the two clamping blocks 402, T-shaped screws 401 are rotatably installed. On the mutually repulsive sides of the two clamping blocks 402, a first bearing is fixedly connected. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding T-shaped screw 401, achieving the effect of rotatably installing the T-shaped screw 401. The U-shaped support 4 is threadedly sleeved on the two T-shaped screws 401. Threaded holes are provided on the inner walls of both sides of the U-shaped support 4, and the threaded holes are threadedly connected to the corresponding T-shaped screws 401. Using the threaded connection relationship between the T-shaped screw 401 and the threaded hole, it achieves the effect of facilitating the horizontal displacement when the T-shaped screw 401 rotates. At the bottom of the mutually repulsive sides of the two clamping blocks 402, transverse guide rods 403 are fixedly connected. The U-shaped support 4 is slidably sleeved on the two transverse guide rods 403. Transverse guide holes are provided on the inner walls of both sides of the U-shaped support 4, and the inner wall of the transverse guide hole is slidably sleeved on the outer side of the corresponding transverse guide rod 403, achieving the effect of guiding the transverse sliding of the transverse guide rod 403. On the mutually approaching sides of the two clamping blocks 402, anti-slip rubber sheets are adhesively fixed; the cooperation of the provided U-shaped support 4, clamping blocks 402, T-shaped screws 401, transverse guide rods 403, and anti-slip rubber sheets places the electromagnetic probe between the two clamping blocks 402. Rotate the two T-shaped screws 401 to move them closer to each other and drive the two clamping blocks 402 to move closer to each other. The clamping and supporting of the electromagnetic probe are realized by the close movement of the two clamping blocks 402. When the U-shaped support 4 is horizontally rotated, it can drive the hollow universal ball 2 to rotate horizontally in the spherical sleeve 1. The horizontally rotating U-shaped support 4 can drive the two clamping blocks 402 to rotate and change the clamping orientation, such as changing from left-right clamping to front-back clamping, achieving the adjustable effect of the orientation angle; when the whole is placed obliquely, when the counterweight 3 automatically rotates to the vertical and drives the hollow universal ball 2 to perform adaptive rotation, the adaptively rotating hollow universal ball 2 is used to drive the U-shaped support 4 to rotate to the horizontal, thereby avoiding the phenomenon that the clamping is inclined due to its inclination and affecting the use.

[0028] Furthermore, the combined drive and extrusion assembly includes an internally threaded sleeve 505 fixedly connected to the top of the annular support plate 5. An externally threaded sleeve 506 is threadedly sleeved inside the internally threaded sleeve 505. A plurality of handle rods are fixedly connected to the outer top of the externally threaded sleeve 506 at equal intervals in a circular pattern. A lifting ring 508 is rotatably installed at the bottom of the externally threaded sleeve 506. Specifically, a second bearing is fixedly connected to the bottom of the externally threaded sleeve 506, and the inner ring of the second bearing is fixedly sleeved on the outer side of the lifting ring 508, achieving the effect of rotatably connecting and supporting between the lifting ring 508 and the externally threaded sleeve 506. By using the rotational connection, it can prevent the externally threaded sleeve 506 from transmitting rotational torque to the lifting ring 508 when it rotates. The bottom of the lifting ring 508 is hinged to the tops of the four connecting rods 504. The hollow universal ball 2 is located inside the externally threaded sleeve 506 and the lifting ring 508. The internally threaded sleeve 505, externally threaded sleeve 506, handle rods, and lifting ring 508 are arranged in cooperation. By rotating the handle rods, the externally threaded sleeve 506 is driven to rotate. The externally threaded sleeve 506 rotates and moves up and down inside the internally threaded sleeve 505. The externally threaded sleeve 506 drives the lifting ring 508 to move up and down. By using the lifting ring 508 that moves up and down, it is possible to drive the four connecting rods 504 to rotate downward synchronously or rotate upward.

[0029] Furthermore, the clamping assembly includes a rectangular pressing block 502 slidably sleeved in the corresponding rectangular groove 501. A spring 507 is fixedly connected between the rectangular pressing block 502 and the inner wall of the corresponding rectangular groove 501 on the side away from its opening. The spherical sleeve 1 is slidably sleeved on the four rectangular pressing blocks 502. Specifically, four rectangular sliding holes are opened on the outer side of the spherical sleeve 1 at equal intervals in a circular pattern and are respectively slidably sleeved on the outer sides of the corresponding rectangular pressing blocks 502, achieving the effect of allowing the rectangular pressing blocks 502 to slide through. Anti-slip rubber blocks 503 are adhesively fixed to the adjacent sides of the four rectangular pressing blocks 502. The hollow universal ball 2 is located between the four anti-slip rubber blocks 503. The top of the rectangular pressing block 502 is hinged to the bottom end of the corresponding connecting rod 504. The rectangular pressing block 502, spring 507, and anti-slip rubber block 503 are arranged in cooperation. When the four connecting rods 504 rotate downward, they squeeze and drive the four rectangular pressing blocks 502 to displace synchronously towards the middle, and stretch the four springs 507. The four rectangular pressing blocks 502 drive the four anti-slip rubber blocks 503 to synchronously clamp and prevent the hollow universal ball 2 from shaking at four points towards the middle, ensuring stability during use after adaptive adjustment. When the four connecting rods 504 rotate upward, the squeezing force on the four rectangular pressing blocks 502 will be relaxed and they will be pulled outward. At this time, the elastic force of the four springs 507 in the stretched state assists in driving the four rectangular pressing blocks 502 to move outward. At this time, the four rectangular pressing blocks 502 drive the four anti-slip rubber blocks 503 to release the locking state of the hollow universal ball 2 outward, and then the position can be moved and the adaptive leveling work can be carried out again later.

[0030] Further, the telescopic support assembly includes an outer tube 6 fixedly connected to the bottom of the annular support plate 5 and inclined outward. An inner rod 601 is slidably sleeved in the outer tube 6. The bottom end of the inner rod 601 is fixedly connected with a support foot. The outer side of the inner rod 601 is in movable contact with a knob bolt 602. The outer tube 6 is threadedly sleeved on the corresponding knob bolt 602. A threaded through hole for threaded connection with the corresponding knob bolt 602 is formed on the outer side of the outer tube 6. The counterweight 3 is located between the three outer tubes 6. The cooperation of the provided outer tube 6, inner rod 601 and knob bolt 602 realizes bottom support. By reversely rotating the knob bolt 602 to release the pressing and fixing of the corresponding inner rod 601, the inner rod 601 can be pulled downward to slide downward in the corresponding outer tube 6, and the extended length of the inner rod 601 can be adjusted, so as to realize the adjustment of the lower support height. After the adjustment is appropriate, the knob bolt 602 is rotated forward to press and fix the corresponding inner rod 601.

[0031] The usage method of this embodiment is as follows: When the support height needs to be adjusted, first reversely rotate the knob bolt 602 to rotate it in the corresponding threaded through hole and displace outward, separating from the inner rod 601, releasing the pressing and fixing of the corresponding inner rod 601. Then the inner rod 601 can be pulled downward to slide downward in the corresponding outer tube 6, and the extended length of the inner rod 601 can be adjusted, so as to realize the adjustment of the lower support height. After the adjustment is appropriate, the knob bolt 602 is rotated forward to press and fix the corresponding inner rod 601.

[0032] When the whole is tilted due to the inclined placement, since the weight of the electromagnetic probe clamping assembly is smaller than that of the counterweight 3, when the hollow universal ball 2 is not locked, under its own action, the counterweight 3 automatically rotates downward to the vertical, driving the hollow universal ball 2 to adaptively rotate in the spherical sleeve 1. At this time, when the hollow universal ball 2 drives the upper U-shaped support 4 to rotate horizontally, the self-adaptive rapid leveling work is realized, without the need for personnel to observe and judge and adjust the four corners one by one, improving the leveling efficiency, convenience and accuracy. When the clamping orientation needs to be adjusted, the operator can horizontally rotate the U-shaped support 4 to drive the hollow universal ball 2 to horizontally rotate in the spherical sleeve 1. The horizontally rotating U-shaped support 4 can drive the two clamping blocks 402 to rotate to change the clamping orientation, such as changing from left-right clamping to front-back clamping, realizing the adjustable effect of the orientation angle.

[0033] When locking and fixing after adjustment, the operator drives the rotation of the external thread sleeve 506 by rotating the handle rod. The external thread sleeve 506 rotates and moves downward within the internal thread sleeve 505. The external thread sleeve 506 drives the lifting ring 508 to move downward. The lifting ring 508 drives the four connecting rods 504 to rotate downward synchronously. When the four connecting rods 504 rotate downward, they squeeze and drive the four rectangular pressing blocks 502 to move synchronously towards the middle, and stretch the four springs 507. The four rectangular pressing blocks 502 drive the four anti-slip rubber blocks 503 to move synchronously towards the middle to stably clamp and prevent shaking of the hollow universal ball 2 at four points, so as to ensure the stability during use after adaptive adjustment. Then, place the electromagnetic probe to be used between the two clamping blocks 402, and rotate the two T-shaped screws 401 to make them move closer to each other and drive the two clamping blocks 402 to move closer. The clamping blocks 402 drive the corresponding horizontal guide rods 403 to slide horizontally within the U-shaped support 4. The two clamping blocks 402 drive the two anti-slip rubber sheets to move towards the middle to clamp and support the electromagnetic probe, realizing the fixed support of the electromagnetic probe. And in combination with the above-mentioned adaptive leveling method, this can ensure the horizontal clamping and support of the electromagnetic probe. And by using the above method that can horizontally rotate and adjust the clamping direction, the orientation of the electromagnetic probe can be adjusted in advance by adjusting the clamping direction.

[0034] When it is necessary to release the clamping of the electromagnetic probe after use, rotating the two T-shaped screws 401 can drive the two clamping blocks 402 to move away from each other to release the clamping, and then the electromagnetic probe can be removed. When moving to the next position and needing to level again, pull back the handle rod to drive the external thread sleeve 506 to rotate back, so that it moves upward within the internal thread sleeve 505 and drives the lifting ring 508 to move upward. The lifting ring 508 drives the four connecting rods 504 to rotate upward synchronously. When the four connecting rods 504 rotate upward, the extrusion force on the four rectangular pressing blocks 502 will be relaxed and they will be pulled back outward. At this time, the elastic force of the four springs 507 in the stretched state assists in driving the four rectangular pressing blocks 502 to move back outward. At this time, the four rectangular pressing blocks 502 drive the four anti-slip rubber blocks 503 to move outward to release the locking state of the hollow universal ball 2, and then the gravity can be used for adaptive leveling work again after moving to a new position.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fixing bracket for a geophysical electromagnetic probe, comprising a spherical sleeve (1) with openings at the top and bottom, characterized in that: The movable sleeve in the spherical sleeve (1) is provided with a hollow universal ball (2), the bottom of the hollow universal ball (2) is fixedly connected to a counterweight (3), and the top of the hollow universal ball (2) is fixedly connected to an electromagnetic probe clamping support assembly with a weight smaller than that of the counterweight (3); The outer fixed sleeve of the spherical sleeve (1) is provided with an annular support plate (5), and a four-point synchronous clamping mechanism matched with the hollow universal ball (2) is installed on the annular support plate (5), and the four-point synchronous clamping mechanism includes a joint drive extrusion assembly fixedly connected to the top of the annular support plate (5), and the bottom four sides of the joint drive extrusion assembly are hinged with inclined connecting rods (504), and the two opposite connecting rods (504) are symmetrically arranged. Rectangular grooves (501) are opened on the inner walls of the four sides of the annular support plate (5), and a clamping assembly is installed in the rectangular groove (501), and the top of the clamping assembly is hinged to the bottom end of the corresponding connecting rod (504); The bottom of the annular support plate (5) is annularly and equidistantly fixedly connected with three telescopic support assemblies.

2. The fixing bracket for a geophysical electromagnetic probe according to claim 1, characterized in that: The electromagnetic probe clamping assembly comprises a U-shaped support (4) fixedly connected to the top of the hollow universal ball (2), wherein two symmetrically arranged clamping blocks (402) are arranged in the U-shaped support (4), and T-shaped screws (401) are rotatably installed on the repelling sides of the two clamping blocks (402), the U-shaped support (4) is threadedly sleeved on the two T-shaped screws (401), and the bottoms of the repelling sides of the two clamping blocks (402) are fixedly connected with cross guide rods (403), the U-shaped support (4) is slidably sleeved on the two cross guide rods (403), and anti-slip rubber is bonded and fixed on the adjacent sides of the two clamping blocks (402).

3. The fixing bracket for a geophysical electromagnetic probe according to claim 1, characterized in that: The coupled drive extrusion assembly comprises an internal threaded sleeve (505) fixedly connected to the top of the annular support plate (5); the internal threaded sleeve (505) is provided with an external threaded sleeve (506); the outer top of the external threaded sleeve (506) is fixedly connected with a plurality of handle bars in an annular shape at equal intervals; a lifting ring (508) is rotatably mounted on the bottom of the external threaded sleeve (506); the bottom of the lifting ring (508) is hinged to the tops of the four connecting rods (504); and a hollow universal ball (2) is located in the external threaded sleeve (506) and the lifting ring (508).

4. The fixing bracket for a geophysical electromagnetic probe according to claim 1, characterized in that: The clamping assembly comprises a rectangular pressing block (502) slidably mounted in a corresponding rectangular groove (501); a spring (507) is fixedly connected between the rectangular pressing block (502) and the inner wall of the corresponding rectangular groove (501) away from its opening; a spherical sleeve (1) is slidably mounted on four rectangular pressing blocks (502); anti-skid rubber blocks (503) are bonded and fixed to adjacent sides of the four rectangular pressing blocks (502); a hollow universal ball (2) is located between the four anti-skid rubber blocks (503); and the top of the rectangular pressing block (502) is hinged to the bottom end of the corresponding connecting rod (504).

5. The fixing bracket for a geophysical electromagnetic probe according to claim 1, characterized in that: The telescopic support assembly comprises an outer tube (6) fixedly connected to the bottom of the annular support plate (5) and arranged to be inclined outward, an inner rod (601) is slidably sleeved inside the outer tube (6), a support foot is fixedly connected to the bottom end of the inner rod (601), a knob-type bolt (602) is movably contacted on the outer side of the inner rod (601), the outer tube (6) is threadedly sleeved on the corresponding knob-type bolt (602), and the counterweight (3) is located between the three outer tubes (6).

6. The fixing bracket for a geophysical electromagnetic probe according to claim 2, characterized in that: The inner walls on both sides of the U-shaped support (4) are provided with threaded holes, and the threaded holes are threadedly connected to the corresponding T-shaped screw rods (401).

7. The fixing bracket for a geophysical electromagnetic probe according to claim 1, characterized in that: A rectangular through hole is provided on the top inner wall of the rectangular groove (501), and the connecting rod (504) is located in the corresponding rectangular through hole and does not contact the inner wall of the rectangular through hole.

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