Underground detector for geophysical exploration

Abstract

The utility model relates to the technical field of underground geophones, and discloses an underground geophone for geophysical exploration, which comprises an upper cover, the top of the upper cover is provided with a measuring main body, the bottom of the upper cover is movably sleeved with the measuring main body, and the bottom of the measuring main body is movably sleeved with a lower cover. A pressing device is fixedly sleeved with the lower cover, the pressing device comprises a spring, and the top of the spring is fixedly connected with a fixed base; according to the utility model, the pressing device is additionally arranged at the bottom of the underground detector, when the underground detector is placed into the probe tube, the pressing device is pressed down, the button is put into the probe tube, the subsequent connection of the probe tube is not influenced, and when the underground detector needs to be taken out, the pressing device is pressed down again, the button pops up, and the underground detector can be taken out by directly pinching the button. The operation is simple and convenient, and workers can take out the underground detector more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of downhole geophones, and more specifically to a downhole geophone for geophysical exploration. Background Art

[0002] Geophysical exploration is a method of measuring and analyzing geophysical fields to understand the internal structure of the earth, rock properties, groundwater, mineral resources and other information. This exploration method is usually used in geological exploration, resource exploration, and environmental monitoring. Common methods of geophysical exploration include: gravity exploration, magnetic exploration, electromagnetic exploration, and seismic exploration. Downhole geophones are a common detection equipment, mainly used to measure underground rock properties, stratum structure and rock characteristics. They are placed underground to obtain underground geological information by measuring the propagation and reflection of seismic waves or other physical signals.

[0003] The existing downhole geophones may have some problems in actual use, as follows:

[0004] When the existing downhole geophone is put into the underground, it is first put into the probe tube and then goes into the underground together with the drill bit. There is a card slot for fixing the downhole geophone in front of the probe tube. The staff pushes the downhole geophone into the probe tube and connects it with the card slot. When taking out the downhole geophone, it is necessary to use another tool to clamp the downhole geophone out, which is inconvenient. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a downhole geophone for geophysical exploration to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solution: a downhole geophone for geophysical exploration, comprising an upper cover, a measuring body is provided on the top of the upper cover, the measuring body is movably sleeved on the bottom of the upper cover, the bottom of the measuring body is movably sleeved on the lower cover, and a pressing device is fixedly sleeved on the inside of the lower cover.

[0007] Furthermore, the pressing device includes a spring, the top of the spring is fixedly connected to a fixed base, the top of the fixed base is movably connected to a rotating base, the rotating base is fixedly connected to a buckle, the middle of the rotating base is movably sleeved with a button, a rotating slot is fixedly sleeved in a groove opened at the bottom of the lower cover, the middle of the button is fixedly connected to a fixing bolt, the rotating slot is provided with a fixing slot, and the rotating slot is provided with a pop-up slot.

[0008] Furthermore, the four buckles are evenly distributed around the rotating base, and the inclination angle of the tops of the four buckles is the same as the inclination angle of the fixing groove.

[0009] Furthermore, the four pop-up slots and the four fixed slots are evenly distributed at the bottom of the rotating slot, and the four fixed slots and the four pop-up slots are combined together.

[0010] Furthermore, the diameter of the four fixing bolts is the same as the width of the fixing slot, and the length of the four fixing bolts protrudes from the periphery of the rotating slot.

[0011] Furthermore, the length of the button when retracted does not protrude from the plane of the bottom of the lower cover, and the length of the button when popped out protrudes from the plane of the bottom of the lower cover.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model adds a pressing device at the bottom of the downhole detector. When the downhole detector is placed in the probe tube, the pressing device is pressed down and the button is retracted into the probe tube without affecting the subsequent connection of the probe tube. When the downhole detector needs to be taken out, the pressing device is pressed again and the button pops up upward. The downhole detector can be taken out by directly pinching the button. The operation is simple and convenient, making it more convenient for workers to take out the downhole detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the bottom structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the pressing device of the utility model.

[0017] Figure 4 It is a schematic diagram of the pressing structure of the pressing device of the utility model.

[0018] The accompanying drawings are marked as follows: 1. upper cover; 101. connecting slot; 2. measuring body; 3. lower cover; 4. pressing device; 401. spring; 402. fixed base; 403. button; 404. fixing bolt; 405. rotating slot; 4051. fixed slot; 4052. pop-up slot; 406. rotating base; 4061. buckle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the measuring probe involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] Reference Figure 1-4The utility model provides a downhole geophone for geophysical exploration, including an upper cover 1. In a preferred embodiment, a measuring body 2 is provided on the top of the upper cover 1, the measuring body 2 is movably sleeved on the bottom of the upper cover 1, the bottom of the measuring body 2 is movably sleeved on the lower cover 3, and a pressing device 4 is fixedly sleeved inside the lower cover 3. The use of the downhole geophone is conducive to measuring and reflecting the underground situation as the drilling depth increases, and the detected data is sent to the monitoring terminal in real time through a wireless network.

[0021] In a preferred embodiment, the pressing device 4 includes a spring 401, the top of the spring 401 is fixedly connected to a fixed base 402, the top of the fixed base 402 is movably connected to a rotating base 406, the rotating base 406 is fixedly connected to a buckle 4061, the middle of the rotating base 406 is movably sleeved with a button 403, a rotating slot 405 is fixedly sleeved in a groove opened at the bottom of the lower cover 3, the middle of the button 403 is fixedly connected to a fixing bolt 404, the rotating slot 405 is provided with a fixing slot 4051, and the rotating slot 405 is provided with a pop-up slot 4052. The pressing device 4 is conducive to the removal of the downhole detector.

[0022] In a preferred embodiment, the four buckles 4061 are evenly distributed around the rotating base 406 , and the inclination angle of the tops of the four buckles 4061 is the same as the inclination angle of the fixing groove 4051 , ensuring that the buckles 4061 rotate smoothly in the fixing groove 4051 and the pop-up groove 4052 .

[0023] In a preferred embodiment, the four pop-up slots 4052 and the four fixed slots 4051 are evenly distributed at the bottom of the rotating slot 405 , and the four fixed slots 4051 and the four pop-up slots 4052 are combined together to ensure that the rotating slot 405 is an integral whole.

[0024] In a preferred embodiment, the diameter of the four fixing bolts 404 is the same as the width of the fixing slot 4051 , and the length of the four fixing bolts 404 protrudes beyond the periphery of the rotating slot 405 , ensuring that the fixing bolts 404 can be fixed in the fixing slot 4051 and the pop-up slot 4052 .

[0025] In a preferred embodiment, the length of the button 403 when retracted does not protrude from the bottom plane of the lower cover 3, and the length of the button 403 when popped out protrudes from the bottom plane of the lower cover 3, ensuring that the button 403 will not affect the connection of subsequent probes.

[0026] The working principle of the utility model is as follows: the downhole detector is placed in the probe tube, the connecting groove 101 is connected to the front probe tube, and the whole is fixed to the probe tube. As the drill bit enters the drilling operation, when the downhole detector is placed in the probe tube, the button 403 is pressed and put into the lower cover 3. When taking it out, the button 403 is pressed again, and the spring 401 is pressed down accordingly. The fixing groove 4051 and the buckle 4061 have the same inclination angle, and the rotating buckle 405 is fixed. Therefore, the buckle 4061 rotates in the fixing groove 4051 and the pop-up groove 4052 as the rotating base 406 rotates, and then the buckle 4061 rotates from the fixing groove 4051 to the pop-up groove 4052, and the button 403 pops up and protrudes from the plane of the lower cover 3. The downhole detector is taken out as a whole by pinching the button 403.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0028] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A downhole geophone for geophysical exploration, comprising an upper cover (1), characterized in that: The top of the upper cover (1) is provided with a measuring body (2), the bottom of the upper cover (1) is movably sleeved with the measuring body (2), the bottom of the measuring body (2) is movably sleeved with a lower cover (3), and the interior of the lower cover (3) is fixedly sleeved with a pressing device (4).

2. A downhole geophone for geophysical exploration according to claim 1, characterized in that: The pressing device (4) comprises a spring (401), the top of the spring (401) is fixedly connected to a fixed base (402), the top of the fixed base (402) is movably connected to a rotating base (406), the rotating base (406) is fixedly connected to a buckle (4061), the middle of the rotating base (406) is movably sleeved with a button (403), a rotating slot (405) is fixedly sleeved in a groove provided at the bottom of the lower cover (3), the middle of the button (403) is fixedly connected to a fixing bolt (404), the rotating slot (405) is provided with a fixing slot (4051), and the rotating slot (405) is provided with a pop-up slot (4052).

3. A downhole geophone for geophysical exploration according to claim 2, characterized in that: The four buckles (4061) are evenly distributed around the rotating base (406), and the inclination angle of the top of the four buckles (4061) is the same as the inclination angle of the fixing groove (4051).

4. A downhole geophone for geophysical exploration according to claim 2, characterized in that: The four pop-up slots (4052) and the four fixed slots (4051) are evenly distributed at the bottom of the rotating slot (405), and the four fixed slots (4051) and the four pop-up slots (4052) are combined together.

5. A downhole geophone for geophysical exploration according to claim 2, characterized in that: The diameter of the four fixing bolts (404) is the same as the width of the fixing slot (4051), and the length of the four fixing bolts (404) protrudes beyond the periphery of the rotating slot (405).

6. A downhole geophone for geophysical exploration according to claim 2, characterized in that: The length of the button (403) when retracted does not protrude from the plane at the bottom of the lower cover (3), and the length of the button (403) when popped out protrudes from the plane at the bottom of the lower cover (3).

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