Transient electromagnetic coil support for geophysical prospecting

Abstract

The utility model discloses a transient electromagnetic coil bracket for geophysical prospecting. The transient electromagnetic coil bracket mainly comprises an electromagnetic coil, a supporting mechanism, a folding mechanism and an auxiliary mechanism, locking grooves are formed in the supporting mechanism, the auxiliary mechanism is locked by being clamped into the locking grooves evenly distributed in the vertical direction of the supporting mechanism in a rotating mode, and the auxiliary mechanism slides in the supporting mechanism to change the position, so that the holding position of an operator can be changed according to the actual situation; the size during transportation is reduced through rotating and folding of the folding mechanism; the problems that in transient electromagnetic geophysical prospecting operation, it is inconvenient for an operator to keep the posture of an electromagnetic coil on the fluctuating ground, and a support is inconvenient to carry and transport are solved. Geophysical prospecting operation efficiency can be improved, and labor intensity of operators is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of geophysical prospecting equipment, and in particular to a transient electromagnetic coil bracket for geophysical prospecting. Background Art

[0002] In modern infrastructure and mining production, construction space is increasingly shifted underground, and physical exploration of underground space structure, lithology, minerals and other information is an important means of underground space development and construction. Geophysical exploration obtains information such as underground structure, rock properties, groundwater conditions, mineral resources, etc., providing important reference data for geological exploration, engineering construction, environmental protection, etc. Among them, the use of transient electromagnetic wire meters is currently a widely used method, and the existing electromagnetic coil bracket used underground needs to support the electromagnetic coil into a rectangular structure for geophysical exploration, which makes the coil bracket inconvenient to carry and easily causes the coil to become tangled, greatly reducing the efficiency of geophysical exploration and increasing the labor intensity of operators. When in use, it is not convenient to hold the bracket in the face of undulating ground, and even requires maintaining an unbearable posture for geophysical exploration operations.

[0003] For example, a mine transient electromagnetic instrument detection coil support with publication number CN213544843U includes a main frame and a wire frame, the wire frame is rotatably connected to the main frame, the main frame includes a pair of telescopic rods, the telescopic rods are provided with locking knobs, the wire frame is fixedly connected to a pair of fixed shaft rods, one end of a pair of fixed shaft rods respectively passes through a pair of telescopic rods and is rotatably connected to the telescopic rods, the telescopic rods are fixedly connected to an angle measuring disk, the central axis of the angle measuring disk coincides with the central axis of the fixed shaft rod, the wire frame is fixedly connected to a measuring rod corresponding to the fixed shaft rod, and an elastic rope is connected between the fixed shaft rod and the measuring rod. The above-mentioned electromagnetic coil support can be convenient for judging and changing the geophysical exploration angle only by the elastic rope, but the structure is too large and cannot be folded, which is not convenient for use in small underground spaces, and is not convenient for carrying and transportation. It cannot be used normally when the underground detection surface is uneven. Therefore, the present application designs a geophysical exploration transient electromagnetic coil support that can be stored by folding and further increases the convenience of operation for operators. Utility Model Content

[0004] The utility model aims to provide a transient electromagnetic coil support for geophysical exploration, aiming to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transient electromagnetic coil support for geophysical exploration, comprising an electromagnetic coil, a support mechanism, a folding mechanism, and an auxiliary mechanism that can slide to change the holding position; the support mechanism is rotatably connected to the folding mechanism, the auxiliary mechanism is plugged into the support mechanism, and the electromagnetic coil is detachably connected to the support mechanism and the folding mechanism; a locking groove is provided inside the support mechanism, and the locking grooves are evenly arranged along the vertical direction of the support mechanism, the auxiliary mechanism is locked by rotating and snapping into the locking groove, the auxiliary mechanism changes its position by sliding in the support mechanism, and the support mechanism is folded by rotating the folding mechanism to reduce the volume during transportation. The support mechanism comprises a cylindrical rod, a locker, and an openable fastener, the locker is fixedly arranged on the side of the cylindrical rod, the fastener is fixed on the rear side of the cylindrical rod, the electromagnetic coil passes through the fastener, and the locker is fixedly connected to the side of the cylindrical rod.

[0006] The folding mechanism is provided so that the bracket can be folded and stored, which reduces the volume of the bracket while folding the upper and lower electromagnetic coils in order, avoiding clutter of the coils and preventing the upper and lower coils from sagging naturally during use, making it more convenient for operators to use and carry. The locking groove and the locking of the support mechanism allow operators to change the holding position according to the on-site conditions, making the bracket operation more convenient, improving operating efficiency, and reducing the labor intensity of operators.

[0007] Furthermore, two groups of cylindrical rods are provided, and the two groups of cylindrical rods are connected by a folding mechanism. The cylindrical rod is provided with a hollow part that passes through from top to bottom, and a locking groove is provided on the inner wall of the hollow part. Limiting rings are provided at the upper and lower ends of the hollow part, and the cylindrical rod is also provided with a hollow hole that passes through from top to bottom. The hollow hole is connected to the hollow part, and the hollow hole extends to the outer wall of the cylindrical rod. A rubber limiting block is fixed at the connection between the locking groove and the hollow part. The auxiliary mechanism slides inside the hollow part through the setting, thereby changing the position of the auxiliary mechanism, and the auxiliary mechanism is locked to a certain extent by the rubber limiting block, which is convenient for operators to operate and carry.

[0008] Furthermore, the folding mechanism includes a first rotating handle, a second rotating handle and a rotating shaft. The folding mechanism is provided with two groups. The first rotating handle and the second rotating handle are rotationally connected through the rotating shaft. The end of the first rotating handle away from the rotating shaft is rotationally connected to the two ends of the cylindrical rod, so that the first rotating handle rotates in the vertical direction around the end of the cylindrical rod. The end of the second rotating handle away from the rotating shaft is rotationally connected to the two ends of the cylindrical rod, so that the second rotating handle rotates in the vertical direction around the end of the cylindrical rod. The auxiliary mechanism includes a handle, a locking rod and a sliding rod. The middle part of the sliding rod is fixedly connected to the locking rod. The end of the locking rod away from the sliding rod is fixedly connected to the handle. The sliding rod is arranged in the hollow part. The sliding rod slides in the corresponding hollow part. The locking rod extends out of the cylindrical rod through the hollow hole. The handle is arranged outside the cylindrical rod. Limiting rings are provided on both sides of the middle part of the sliding rod. The diameter of the limiting ring is slightly larger than the diameter of the limiting ring. The provided handle makes it easy for operators to hold the device during operation. After the bracket is folded, the bracket can be carried by lifting the handle, which improves the portability of the bracket. The provided sliding rod can extend from both ends of the cylindrical rod when the handle is displaced significantly, to assist operators in holding the device, further enhancing the convenience of the device and reducing the labor intensity of operators.

[0009] Compared with the prior art, it has the following beneficial effects:

[0010] The utility model provides a transient electromagnetic coil bracket for geophysical exploration. The bracket can be folded and stored by means of a folding mechanism, thereby reducing the volume of the bracket and folding the electromagnetic coils of the upper and lower parts in order, avoiding the coils from being messy and preventing the upper and lower coils from sagging naturally when in use, making it more convenient for operators to use and carry.

[0011] By setting the locking groove and the locking of the supporting mechanism, the operator can change the holding position according to the on-site conditions, making the bracket operation more convenient, improving the working efficiency and reducing the labor intensity of the operators.

[0012] The sliding rods provided can extend from both ends of the cylindrical rod when the handle undergoes a large displacement, thereby assisting the operator in holding the handle, thereby further enhancing the convenience of the device and reducing the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of a transient electromagnetic coil support for geophysical exploration according to the utility model;

[0014] Figure 2 This is an axial view of a transient electromagnetic coil support for geophysical exploration according to the utility model;

[0015] Figure 3 This is a schematic diagram of a locking slot of a transient electromagnetic coil support for geophysical exploration according to the utility model;

[0016] Figure 4 It is a schematic diagram of a cylindrical rod of a transient electromagnetic coil support for geophysical exploration according to the utility model;

[0017] Figure 5 The utility model is a schematic diagram of an auxiliary mechanism of a transient electromagnetic coil support for geophysical exploration.

[0018] In the figure: 1-electromagnetic coil; 2-support mechanism; 21-cylindrical rod; 211-hollow part; 212-limiting ring; 213-hollow hole; 22-locking device; 23-fastener; 3-folding mechanism; 31-first rotating handle; 32-second rotating handle; 33-rotating shaft; 4-auxiliary mechanism; 41-handle; 42-locking rod; 43-sliding rod; 431-limiting ring; 5-locking groove; 51-rubber limiting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 5 As shown, the utility model provides the following technical solutions: a transient electromagnetic coil bracket for geophysical exploration, comprising an electromagnetic coil 1, a supporting mechanism 2, a folding mechanism 3 and an auxiliary mechanism 4 that can slide to change the holding position; the supporting mechanism 2 is rotatably connected to the folding mechanism 3, the auxiliary mechanism 4 is plugged into the supporting mechanism 2, and the electromagnetic coil 1 is detachably connected to the supporting mechanism 2 and the folding mechanism 3; a locking groove 5 is provided inside the supporting mechanism 2, and the locking groove 5 is evenly arranged along the vertical direction of the supporting mechanism 2, the auxiliary mechanism 4 is locked by rotating and snapping into the locking groove 5, the auxiliary mechanism 4 changes its position by sliding inside the supporting mechanism 2, and the supporting mechanism 2 is folded by rotating the folding mechanism 3 to reduce the volume during transportation.

[0021] As another example, Figures 1 to 4 As shown, the support mechanism 2 includes a cylindrical rod 21, a locker 22 and an openable fastener 23. The locker 22 is fixed to the side of the cylindrical rod 21, and the fastener 23 is fixed to the rear side of the cylindrical rod 21. The electromagnetic coil 1 passes through the fastener 23, and the locker 22 is fixedly connected to the side of the cylindrical rod 21; the electromagnetic coil 1 is fixed to the support mechanism 2 on the folding mechanism 3 through the fastener 23. When the bracket is unfolded, the electromagnetic coil 1 is in a square-like structure, which is convenient for geophysical exploration operations. When the bracket is folded, the bracket is locked by the locker 22 to prevent the bracket from being unfolded due to disturbances during transportation and carrying.

[0022] See also Figure 1 and Figure 4 There are two groups of cylindrical rods 21, which are connected by a folding mechanism 3. The cylindrical rods 21 are provided with a hollow portion 211 that passes through from top to bottom, and a locking groove 5 is provided on the inner wall of the hollow portion 211. When the two groups of cylindrical rods 21 are folded by the folding mechanism 3, they are close to each other, and the locker 22 on one side is inserted into the locker 22 on the other side to complete the locking of the two groups of cylindrical rods 21. The auxiliary group mechanism slides up and down in the hollow portion 211 to change the gripping position of the operator, and the auxiliary mechanism 4 is fixed by rotating the auxiliary mechanism 4 so that it is stuck in the locking groove 5.

[0023] See also Figure 4 The upper and lower ends of the hollow part 211 are provided with stop rings 212, and the cylindrical rod 21 is also provided with a hollow hole 213 that passes through the upper and lower parts. The hollow hole 213 passes through the hollow part 211 and extends to the outer wall of the cylindrical rod 21. The auxiliary mechanism 4 is slidably connected with the cylindrical rod 21 through the hollow hole 213. When the on-site environment changes or the ground is uneven, the operator can rotate the auxiliary mechanism 4 to make it enter the hollow hole 213 and slide in the hollow part 211 to change the holding position, and then reverse the auxiliary mechanism 4 to make it snap into the locking groove 5 to complete the fixing of the auxiliary mechanism 4.

[0024] See also Figure 3 A rubber stopper 51 is fixedly provided at the connection between the locking groove 5 and the hollow portion 211. The rubber stopper 51 is made of styrene-butadiene rubber or other rubber materials with a certain strength. When the auxiliary mechanism 4 rotates toward the locking groove 5, it hits the rubber stopper 51 to deform it, and the auxiliary mechanism 4 enters the locking groove 5 to complete the fixation.

[0025] As another example, Figure 1 , Figure 2 as well as Figure 5 As shown, the folding mechanism 3 includes a first rotating handle 31, a second rotating handle 32 and a rotating shaft 33. The folding mechanism 3 is provided with two groups. The first rotating handle 31 and the second rotating handle 32 are rotatably connected through the rotating shaft 33. The end of the first rotating handle 31 away from the rotating shaft 33 is rotatably connected to the two ends of the cylindrical rod 21, so that the first rotating handle 31 rotates along the vertical direction around the end of the cylindrical rod 21. The end of the second rotating handle 32 away from the rotating shaft 33 is rotatably connected to the two ends of the cylindrical rod 21, so that the second rotating handle 32 rotates along the vertical direction around the end of the cylindrical rod 21. By pulling the two groups of cylindrical rods 21, the cylindrical rods 21 drive the first rotating handle 31 and the second rotating handle 32 to rotate. The first rotating handle 31 and the second rotating handle 32 are folded inwardly through the rotating shaft 33, and at the same time, the electromagnetic coils 1 at the upper and lower ends are driven to be retracted and folded inwardly. The first rotating handle 31 and the second rotating handle 32 are staggered in the horizontal direction, so that the first rotating handle 31 and the second rotating handle 32 can overlap when folded.

[0026] See also Figure 5 The auxiliary mechanism 4 includes a handle 41, a locking rod 42 and a sliding rod 43. The middle part of the sliding rod 43 is fixedly connected to the locking rod 42, and the locking rod 42 is fixedly connected to the handle 41 at one end away from the sliding rod 43. The sliding rod 43 is arranged in the hollow part 211, and the sliding rod 43 slides in the hollow part 211. The locking rod extends out of the cylindrical rod 21 through the hollow hole 213, and the handle 41 is arranged outside the cylindrical rod 21. When the operator uses it in the underground space, the handle 41 can be used to hold the bracket. When the position of the handle 41 needs to be adjusted, the handle 41 is rotated to drive the locking rod 42 fixed in the locking groove 5 to rotate and displace, hit the rubber limit block 51 and enter the hollow hole 213, so that the sliding rod 43 can slide in the hollow part 211. After sliding to the desired position, the handle 41 is reversed, and the locking rod 42 is re-inserted into the locking groove 5 to complete the fixation. When the displacement distance of the handle 41 is large, one end of the sliding rod 43 extends out of the cylindrical rod 21 to provide auxiliary grip for the operator. When the handle 41 is in a fixed state, it is perpendicular to the surface formed by the electromagnetic coil 1. When in use, the operator stands behind the bracket to hold it, which is more convenient for the operator to operate. When the bracket is in a folded state, the two sets of handles 41 fit together and can be directly carried by lifting the handle 41.

[0027] See also Figure 5 Limiting rings 431 are provided on both sides of the middle of the sliding rod 43. The diameter of the limiting ring 431 is slightly larger than the diameter of the limiting ring 212. When the sliding distance of the sliding rod 43 inside the hollow part 211 is too large, the limiting ring 431 collides with the limiting ring 212 to prevent the sliding rod 43 from escaping from the hollow part 211.

[0028] Working principle: When in use, the handle 41 perpendicular to the cylindrical rod 21 can be used to directly lift and carry. After reaching the working surface, the cylindrical rod 21 is displaced by pulling the handles 41 to both sides, thereby driving the folding mechanism 3 to unfold, so that the electromagnetic coil 1 forms a square structure required for the operation. When the working environment is complex or the ground is uneven, the locking rod 42 is driven to disengage from the locking groove 5 by rotating the handle 41, so that the sliding rod 43 can slide vertically inside the cylindrical rod 21, thereby driving the handle 41 to change the gripping position of the operator. The locking rod 42 is re-entered into the locking groove 5 for fixation by reversing the handle 41. When the handle 41 is displaced greatly, the sliding rod 43 extends from the end of the cylindrical rod 21 to provide auxiliary grip for the operator. After the operation is completed, the handle 41 is moved to the initial position, and the handles 41 on both sides are pulled inward. The folding mechanism 3 drives the electromagnetic coil 1 to fold inward, the lockers 22 are clamped together, and the bracket returns to the initial state.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transient electromagnetic coil support for geophysical exploration, characterized in that , comprising an electromagnetic coil (1), a support mechanism (2), a folding mechanism (3) and an auxiliary mechanism (4) that can slide to change the holding position; the support mechanism (2) is rotatably connected to the folding mechanism (3), the auxiliary mechanism (4) is plugged into the support mechanism (2), and the electromagnetic coil (1) is detachably connected to the support mechanism (2) and the folding mechanism (3); a locking groove (5) is provided inside the support mechanism (2), and the locking groove (5) is evenly arranged along the vertical direction of the support mechanism (2); the auxiliary mechanism (4) is locked by being rotated and inserted into the locking groove (5); the auxiliary mechanism (4) changes its position by sliding inside the support mechanism (2), and the support mechanism (2) is folded by the rotation of the folding mechanism (3) to reduce the volume during transportation.

2. The transient electromagnetic coil support for geophysical exploration according to claim 1, characterized in that: The support mechanism (2) comprises a cylindrical rod (21), a locker (22) and an openable fastener (23); the locker (22) is fixedly arranged on the side of the cylindrical rod (21); the fastener (23) is fixed on the rear side of the cylindrical rod (21); the electromagnetic coil (1) passes through the fastener (23); and the locker (22) is fixedly connected to the side of the cylindrical rod (21).

3. The transient electromagnetic coil support for geophysical exploration according to claim 2, characterized in that: The cylindrical rods (21) are provided with two groups, and the two groups of cylindrical rods (21) are connected via the folding mechanism (3). The cylindrical rods (21) are provided with a hollow portion (211) penetrating from top to bottom, and the locking groove (5) is provided on the inner wall of the hollow portion (211).

4. The transient electromagnetic coil support for geophysical exploration according to claim 3, characterized in that: The upper and lower ends of the hollow part (211) are provided with limiting rings (212); the cylindrical rod (21) is also provided with a hollow hole (213) which passes through the cylindrical rod (21) from top to bottom; the hollow hole (213) is connected to the hollow part (211); and the hollow hole (213) extends to the outer wall of the cylindrical rod (21).

5. The transient electromagnetic coil support for geophysical exploration according to claim 4, characterized in that: A rubber limiting block (51) is fixedly provided at the connection between the locking groove (5) and the hollow portion (211).

6. The transient electromagnetic coil support for geophysical exploration according to claim 5, characterized in that: The folding mechanism (3) comprises a first rotating handle (31), a second rotating handle (32) and a rotating shaft (33). The folding mechanism (3) is provided with two groups. The first rotating handle (31) and the second rotating handle (32) are rotatably connected via the rotating shaft (33). One end of the first rotating handle (31) away from the rotating shaft (33) is rotatably connected to two ends of the cylindrical rod (21), so that the first rotating handle (31) rotates around the end of the cylindrical rod (21) in a vertical direction. One end of the second rotating handle (32) away from the rotating shaft (33) is rotatably connected to two ends of the cylindrical rod (21), so that the second rotating handle (32) rotates around the end of the cylindrical rod (21) in a vertical direction.

7. The transient electromagnetic coil support for geophysical exploration according to claim 6, characterized in that: The auxiliary mechanism (4) comprises a handle (41), a locking rod (42) and a sliding rod (43); the middle portion of the sliding rod (43) is fixedly connected to the locking rod (42); one end of the locking rod (42) away from the sliding rod (43) is fixedly connected to the handle (41); the sliding rod (43) is arranged in the hollow portion (211); the sliding rod (43) slides in the hollow portion (211); the locking rod (42) extends out of the cylindrical rod (21) through the hollow hole (213); and the handle (41) is arranged outside the cylindrical rod (21).

8. The transient electromagnetic coil support for geophysical exploration according to claim 7, characterized in that: Limiting rings (431) are provided on both sides of the middle of the sliding rod (43), and the diameter of the limiting ring (431) is slightly larger than the diameter of the limiting ring (212).

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