A pipeline constant pressure device

Abstract

The utility model provides a pipeline constant pressure device, which relates to the field of mine pipeline constant pressure, including: a slurry storage tank; a grouting pump is connected to the slurry outlet at the lower front side of the slurry storage tank, and the slurry outlet of the grouting pump is connected to a four-way pipe; three interfaces on the front side of the four-way pipe are installed with a pressure monitoring box, and each pressure monitoring box front side outlet is connected to a grouting pipe. Through the cooperation of the pressure monitoring box, the pressure detection slide plate, the external spring of the sliding cylinder, the fixed rack, the vertical rotating shaft, the transmission gear, the sliding rack and the pressing plate, when the mud pressure sensor is damaged, the overpressure signal can be transmitted to the controller instead of the mud pressure sensor, so that the pipeline constant pressure device is more reliable; it solves the problem that when the mud pressure sensor is damaged during use of the current pipeline constant pressure device for mine grouting, the overpressure signal cannot be transmitted to the controller, resulting in poor reliability of the pipeline constant pressure device.

Description

Technical Field

[0001] The utility model relates to the technical field of mine pipeline constant pressure, in particular to a pipeline constant pressure device. Background Art

[0002] At present, during the mining process, grouting is injected into the mine through the grouting pipe. Mine grouting is a grouting method used in underground engineering. Grouting can strengthen the strength and stability of the mine structure and improve the bearing capacity and safety of the mine. The grouting process can strengthen the stratum structure, reduce the occurrence of geological disasters, and protect the lives and property of miners. When grouting through the grouting pipe, in order to avoid excessive grouting pressure leading to pipeline leakage, breakage and other problems, the pipeline constant pressure device is generally used to release the pressure or the grouting pump is forcibly closed.

[0003] At present, during the use of the pipeline constant pressure device for mine grouting, although the internal pressure of the grouting pipeline can be monitored by the mud pressure sensor, and the grouting pump can be forcibly shut down by the controller when the pressure is too high, when the mud pressure sensor is damaged, it cannot transmit the overpressure signal to the controller, resulting in poor reliability of the pipeline constant pressure device and damage to the grouting pipeline. Utility Model Content

[0004] The disclosed embodiment relates to a pipeline constant pressure device, which, through the cooperation of a pressure monitoring box, a pressure detection slide plate, an external spring of a sliding cylinder, a fixed rack, a vertical rotating shaft, a transmission gear, a sliding rack and a pressing plate, can replace the mud pressure sensor to transmit an overpressure signal to a controller when the mud pressure sensor is damaged, and then realize the functions of alarm and forced shutdown of a grouting pump, thereby avoiding damage to the grouting pipeline, thereby making the pipeline constant pressure device more reliable.

[0005] According to a first aspect of the present disclosure, a pipeline constant pressure device is provided, which specifically comprises: a slurry storage tank; a grouting pump is connected to the slurry outlet at the lower front side of the slurry storage tank, and the slurry outlet of the grouting pump is connected to a four-way pipe; a pressure monitoring box is installed at each of the three interfaces on the front side of the four-way pipe, and a grouting pipe is connected to the slurry outlet at the front side of each pressure monitoring box, and a U-shaped support frame is installed on the left side of the top of each pressure monitoring box; and a controller is installed on the front end surface of the slurry storage tank.

[0006] In at least some embodiments, a mud pressure sensor is installed on each of the three pipes on the front side of the four-way pipe, and an electric valve is installed on each of the left and right pipes of the four-way pipe.

[0007] In at least some embodiments, two dovetail grooves are provided on both the upper and lower sides of the pressure monitoring box, and a pressure detection slide is slidably connected to the pressure monitoring box through four dovetail grooves; an audible and visual alarm is installed on the top of the pressure monitoring box.

[0008] In at least some embodiments, a sliding cylinder is fixedly connected to the middle of the left end surface of the pressure detection slide plate, and a guide rod is slidably connected inside the sliding cylinder, and the guide rod is fixedly connected to the left side surface inside the pressure monitoring box; a spring is provided on the outside of the sliding cylinder between the left side surface inside the pressure monitoring box and the left end surface of the pressure detection slide plate; a fixed rack is fixedly connected to the rear side of the left end surface of the pressure detection slide plate.

[0009] In at least some embodiments, the left side of the top of the pressure monitoring box is rotatably connected to a vertical shaft, and a transmission gear is fixedly installed at both upper and lower ends of the vertical shaft, and a lower transmission gear is meshed with a fixed rack.

[0010] In at least some embodiments, a T-shaped slide rail is fixedly installed on the top of the pressure monitoring box, and a sliding rack is slidably connected to the T-shaped slide rail, and a pressing plate is fixedly installed on the left end of the sliding rack, and the sliding rack is meshed with an upper transmission gear.

[0011] In at least some embodiments, a transverse guide rod is provided on the inner side of the U-shaped support frame, and a T-shaped sliding plate is slidably connected to the outside of the transverse guide rod, and a spring is provided on the left side of the T-shaped sliding plate outside the transverse guide rod; a push switch is installed on the upper right end surface of the T-shaped sliding plate; the three push switches, three mud pressure sensors, and the electric valve are all electrically connected to the controller.

[0012] In at least some embodiments, when the pressure of the slurry inside the pressure monitoring box exceeds 4 MPa, the pressing plate will press the button on the switch to press.

[0013] The utility model provides a pipeline constant pressure device, which has the following beneficial effects:

[0014] 1. Through the cooperation of the pressure monitoring box, the pressure detection slide plate, the external spring of the sliding tube, the fixed rack, the vertical rotating shaft, the transmission gear, the sliding rack and the pressing plate, when the mud pressure sensor is damaged, it can replace the mud pressure sensor to transmit the overpressure signal to the controller, and then realize the alarm and forced shutdown of the grouting pump, so as to avoid the phenomenon of damage to the grouting pipeline, thereby making the pipeline constant pressure device more reliable.

[0015] 2. By arranging a transverse guide rod on the inner side of the U-shaped support frame, and a spring is sleeved on the outer side of the transverse guide rod on the left side of the T-shaped sliding plate, it is possible to avoid damage to the push switch when the push plate presses the button on the push switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 A structural diagram showing the overall structure of the present application;

[0020] Figure 2 A schematic diagram of the structure of the present application in a split state is shown;

[0021] Figure 3 A schematic diagram of a partial cross-section of the pressure monitoring box of the present application is shown;

[0022] Figure 4 A schematic diagram of the structure of the pressure monitoring box, pressure detection slide plate, vertical rotating shaft and U-shaped support frame of the present application after being disassembled is shown;

[0023] Figure 5 A schematic structural diagram of the pressure detection slide plate, sliding cylinder, fixed rack, vertical rotating shaft and transmission gear of the present application is shown.

[0024] Reference numerals list

[0025] 1. Slurry storage tank; 101. Grouting pump; 102. Cross-way pipe; 103. Mud pressure sensor; 104. Electric valve;

[0026] 2. Pressure monitoring box; 201. Sound and light warning device; 202. Pressure detection slide plate; 203. Sliding cylinder; 204. Guide rod; 205. Fixed rack; 206. Vertical rotating shaft; 207. Transmission gear; 208. T-type slide rail; 209. Sliding rack; 2010. Pressing plate;

[0027] 3. Grouting pipeline;

[0028] 4. Controller;

[0029] 5. U-shaped support frame; 501. lateral guide rod; 502. T-shaped sliding plate; 503. push switch. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0031] Example 1: Please refer to Figures 1 to 5 :

[0032] The utility model proposes a pipeline constant pressure device, comprising: a slurry storage tank 1; a grouting pump 101 is connected to a slurry outlet at the lower front side of the slurry storage tank 1, and the slurry outlet of the grouting pump 101 is connected to a four-way pipe 102; three interfaces on the front side of the four-way pipe 102 are each installed with a pressure monitoring box 2, and the slurry outlet on the front side of each pressure monitoring box 2 is connected to a grouting pipeline 3, and a U-shaped support frame 5 is installed on the left side of the top of each pressure monitoring box 2; a controller 4 is installed on the front end surface of the slurry storage tank 1.

[0033] A mud pressure sensor 103 is installed on each of the three pipes in front of the cross-way pipe 102, and an electric valve 104 is installed on each of the left and right pipes of the cross-way pipe 102. The model of the mud pressure sensor 103 is: PTP703N.

[0034] Two dovetail grooves are provided on the upper and lower sides of the pressure monitoring box 2, and a pressure detection slide plate 202 is slidably connected to the pressure monitoring box 2 through four dovetail grooves; an audible and visual alarm 201 is installed on the top of the pressure monitoring box 2 to warn the staff.

[0035] A sliding cylinder 203 is fixedly connected to the middle of the left end face of the pressure detection slide 202, and a guide rod 204 is slidably connected inside the sliding cylinder 203, and the guide rod 204 is fixedly connected to the left side of the interior of the pressure monitoring box 2; a spring is sleeved on the outside of the sliding cylinder 203 between the left side of the interior of the pressure monitoring box 2 and the left end face of the pressure detection slide 202; a fixed rack 205 is fixedly connected to the rear side of the left end face of the pressure detection slide 202; a vertical rotating shaft 206 is rotatably connected to the left side of the top of the pressure monitoring box 2, and a transmission gear 207 is fixedly installed at both the upper and lower ends of the vertical rotating shaft 206, and a lower transmission gear 207 is meshed with the fixed rack 205; a T-shaped slide rail 208 is fixedly installed on the top of the pressure monitoring box 2, and a sliding rack 209 is slidably connected to the T-shaped slide rail 208, and a pressing plate 2010 is fixedly installed on the left end of the sliding rack 209, and the sliding rack 209 is meshed with an upper transmission gear 207.

[0036] When the pressure of the slurry inside the pressure monitoring box 2 exceeds 4 MPa, the pressing plate 2010 presses the button on the pressing switch 503, thereby replacing the mud pressure sensor 103 to transmit an overpressure signal to the controller 4, thereby avoiding damage to the grouting pipe 3.

[0037] Embodiment 2, based on embodiment 1, as Figures 1 to 4 As shown, a transverse guide rod 501 is arranged on the inner side of the U-shaped support frame 5, and a T-shaped sliding plate 502 is slidably connected to the outside of the transverse guide rod 501, and a spring is sleeved on the outside of the transverse guide rod 501 on the left side of the T-shaped sliding plate 502; a push switch 503 is installed on the upper right end surface of the T-shaped sliding plate 502; the spring force outside the transverse guide rod 501 is greater than the spring force of the button on the push switch 503; the three push switches 503, the three mud pressure sensors 103, and the electric valve 104 are all electrically connected to the controller 4; by sleeved with a spring on the outside of the transverse guide rod 501 on the left side of the T-shaped sliding plate 502, it can have a better buffering effect when the push plate 2010 presses the button on the push switch 503.

[0038] The working principle of this embodiment is as follows: when in use, slurry is added into the slurry storage tank 1, and then the grouting pump 101 is started. At this time, the two electric valves 104 are in a closed state. The slurry in the slurry storage tank 1 is transported to the inside of the four-way pipe 102 by the grouting pump 101. Then, the slurry enters a pressure monitoring box 2 in the middle through a pipe in the middle of the four-way pipe 102, and finally is grouted into the mine through a grouting pipe 3 in the middle.

[0039] During the grouting process of the middle grouting pipe 3 into the mine, the internal pressure of the pipe is monitored by a middle mud pressure sensor 103. When the internal pressure of the corresponding pipe exceeds 4MPa (which can be adjusted as needed), the middle mud pressure sensor 103 transmits an overpressure signal to the controller 4, and then the middle sound and light alarm 201 is activated by the controller 4 to warn the staff. Then the controller 4 opens an electric valve 104 on the left, so that the slurry transported by the grouting pump 101 will continue to grout through the left grouting pipe 3, and the middle grouting pipe 3 is depressurized; when When the internal pressure of a grouting pipe 3 on the left also exceeds 4 MPa, a mud pressure sensor 103 on the left transmits an overpressure signal to the controller 4, and then the controller 4 starts a sound and light alarm 201 on the left to warn the staff. Then the controller 4 opens an electric valve 104 on the right, so that the slurry transported by the grouting pump 101 will continue to grout through the grouting pipe 3 on the right, and the grouting pipe 3 on the left will be depressurized; when the internal pressures of the three grouting pipes 3 all exceed 4 MPa, the controller 4 will forcibly close the grouting pump 101 to avoid damage to the grouting pipe 3.

[0040] When the mud pressure sensor 103 is damaged, for example, when a middle mud pressure sensor 103 is damaged, under the action of pressure, the slurry pushes a middle pressure detection slide plate 202 to the left, thereby moving the fixed rack 205 to the left, and the fixed rack 205 rotates clockwise with the vertical shaft 206 and the upper transmission gear 207 through a lower transmission gear 207, thereby driving the sliding rack 209 and the pressing plate 2010 to move to the left. When the pressure of the slurry inside a middle pressure monitoring box 2 exceeds 4MPa, the pressing plate 2010 presses the button on the press switch 503, thereby replacing the middle mud pressure sensor 103 to transmit an overpressure signal to the controller 4, and then realizes the function of alarm and forced shutdown of the grouting pump 101, to avoid the damage of the grouting pipe 3.

[0041] In this article, there are a few points to note:

[0042] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0043] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0044] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A pipeline constant pressure device, comprising: A slurry storage tank (1); a slurry outlet at the lower front side of the slurry storage tank (1) is connected to a grouting pump (101), and the slurry outlet of the grouting pump (101) is connected to a four-way pipe (102); it is characterized in that three interfaces on the front side of the four-way pipe (102) are each equipped with a pressure monitoring box (2), and the slurry outlet on the front side of each pressure monitoring box (2) is connected to a grouting pipe (3), and a U-shaped support frame (5) is installed on the left side of the top of each pressure monitoring box (2); a controller (4) is installed on the front end surface of the slurry storage tank (1).

2. A pipeline constant pressure device according to claim 1, characterized in that: A mud pressure sensor (103) is installed on each of the three pipes on the front side of the four-way pipe (102), and an electric valve (104) is installed on each of the left and right pipes on the four-way pipe (102).

3. A pipeline constant pressure device according to claim 1, characterized in that: The pressure monitoring box (2) has two dovetail-shaped slide grooves on both upper and lower side surfaces, and a pressure detection slide plate (202) is slidably connected to the pressure monitoring box (2) via the four dovetail-shaped slide grooves; and an audible and visual alarm (201) is installed on the top of the pressure monitoring box (2).

4. A pipeline constant pressure device according to claim 3, characterized in that: A sliding cylinder (203) is fixedly connected to the middle of the left end face of the pressure detection slide plate (202), and a guide rod (204) fixed to the left side face of the interior of the pressure monitoring box (2) is slidably connected to the interior of the sliding cylinder (203); a spring is sleeved on the exterior of the sliding cylinder (203) between the left side face of the interior of the pressure monitoring box (2) and the left end face of the pressure detection slide plate (202); and a fixed rack (205) is fixedly connected to the rear side of the left end face of the pressure detection slide plate (202).

5. A pipeline constant pressure device according to claim 4, characterized in that: The left side of the top of the pressure monitoring box (2) is rotatably connected to a vertical rotating shaft (206), and a transmission gear (207) is fixedly installed at both the upper and lower ends of the vertical rotating shaft (206), and the lower transmission gear (207) is meshed with the fixed rack (205).

6. A pipeline constant pressure device according to claim 1, characterized in that: A T-shaped slide rail (208) is fixedly mounted on the top of the pressure monitoring box (2), a sliding rack (209) is slidably connected to the T-shaped slide rail (208), a pressing plate (2010) is fixedly mounted on the left end of the sliding rack (209), and the sliding rack (209) is meshed with an upper transmission gear (207).

7. A pipeline constant pressure device according to claim 6, characterized in that: A transverse guide rod (501) is arranged inside the U-shaped support frame (5), and a T-shaped sliding plate (502) is slidably connected to the outside of the transverse guide rod (501), and a spring is sleeved on the left side of the T-shaped sliding plate (502) outside the transverse guide rod (501); a push switch (503) is installed on the upper right end surface of the T-shaped sliding plate (502).

8. A pipeline constant pressure device according to claim 7, characterized in that: When the pressure of the slurry inside the pressure monitoring box (2) exceeds 4 MPa, the pressing plate (2010) presses the button on the pressing switch (503).

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