Asphalt sample laboratory negative pressure sample feeding device

Abstract

The utility model relates to the technical field of asphalt experiment instruments, and discloses an asphalt sample laboratory negative pressure sample feeding device which comprises a base, an asphalt sampling bottle limiting mechanism is fixedly connected to the upper surface of the base, a containing groove is formed in the upper surface of the base, a threaded hole is formed in the groove wall of the containing groove, and a threaded hole is formed in the threaded hole. And the hole wall of the threaded hole is in threaded connection with a threaded ring, the inner wall of the threaded ring is fixedly connected with a guide pipe, and the bottom end of the guide pipe is fixedly connected with a first discharge one-way valve. The device has the functions of automatically taking out an asphalt sample under negative pressure and adjusting the placement position of the sample feeding container, the speed of the asphalt sample feeding process is increased, the convenience and efficiency of asphalt test operation can be improved, the labor intensity of workers is reduced, and the working efficiency is improved. Meanwhile, the asphalt sample contact part in the device has the capacity of being conveniently disassembled and assembled, and the cleaning convenience of the device can be effectively improved through cooperation with the cleaning auxiliary mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt experimental instruments, in particular to a negative pressure sample delivery device for an asphalt sample laboratory. Background Art

[0002] The purpose of sampling asphalt for laboratory testing is to evaluate its quality and performance in many aspects. First, testing can determine whether the asphalt meets the relevant standards and provide a basis for engineering applications. Secondly, by measuring its physical, chemical and mechanical properties, quality control and formula optimization can be achieved to ensure the stability of quality and consistency of products during the production process. In addition, it can also be used for defect diagnosis and to discover possible problems. For scientific research, the test results can provide data support for research.

[0003] At present, when taking out asphalt samples from asphalt sampling bottles for test operations, the asphalt samples are difficult to pour due to the high viscosity of asphalt, and even require the assistance of staff. In addition, in many asphalt test processes, asphalt samples need to be manually taken out from the asphalt sampling bottles, which is time-consuming and laborious. It not only affects the convenience and efficiency of asphalt test operations, but also increases the labor intensity of staff.

[0004] Therefore, a negative pressure sample delivery device for asphalt sample laboratory is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above problems and proposes a negative pressure sample delivery device for asphalt sample laboratory.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The invention relates to a negative pressure sample delivery device for an asphalt sample laboratory, comprising a base, the upper surface of the base being fixedly connected to a limiting mechanism for an asphalt sampling bottle, the upper surface of the base being provided with a placement groove, the groove wall of the placement groove being provided with a threaded hole, and the hole wall of the threaded hole being threadedly connected to a threaded ring, the inner wall of the threaded ring being fixedly connected to a conduit, the bottom end of the conduit being fixedly connected to a first discharge one-way valve, the bottom end of the base being provided with a deep groove matching the placement groove, the groove wall of the deep groove being provided with a threaded countersunk hole, and the hole wall of the threaded countersunk hole being threadedly and sealingly connected to a connecting pipe, the first discharge one-way valve being located inside the connecting pipe, the outer wall of the connecting pipe being jointly and sealingly sleeved with a movable cover, the bottom end of the movable cover being fixedly embedded with a second discharge one-way valve, the outer wall of the movable cover being fixedly connected to a negative pressure extraction mechanism, the lower surface of the base being fixedly connected to two symmetrically distributed support plates, the outer wall of one of the support plates being sleeved with a material receiving mechanism, and the side wall of the base being fixedly connected to an auxiliary cleaning mechanism.

[0008] Preferably, the asphalt sampling bottle limiting mechanism includes a guide rod fixedly connected to the upper surface of the base, the rod wall of the guide rod is sleeved with a spring and a movable sleeve, the two ends of the spring are respectively fixedly connected to the lower surface of the movable sleeve and the upper surface of the base, and the outer wall of the movable sleeve is fixedly connected with a limiting plate that cooperates with the bottom of the asphalt sampling bottle.

[0009] Preferably, the negative pressure extraction mechanism includes an insert ring fixedly connected to the outer wall of the movable cover, a fixed block is fixedly connected to the inner wall of the deep groove of the base, a motor is fixedly connected to the lower surface of the fixed block, the top of the motor passes through the upper surface of the fixed block and is fixedly connected to a reciprocating screw, the top of the reciprocating screw is connected to the groove wall of the deep groove of the base by a bolt, a screw nut is threadedly sleeved on the rod wall of the reciprocating screw, a U-shaped block is fixedly connected to the outer wall of the screw nut, the outer wall of the insert ring is located on the inner side of the U-shaped block, the outer wall of the U-shaped block is provided with a socket matching the insert ring, and the hole wall of the socket is connected with a pin matching the inner wall of the insert ring.

[0010] Preferably, the material receiving mechanism comprises a movable frame movably connected to the outer wall of the support plate, the outer wall of the movable frame is provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected with a limiting bolt, and the outer wall of the movable frame is fixedly connected with a placement plate.

[0011] Preferably, a test tube placement recess is fixedly embedded on the upper surface of the placement plate, and the test tube placement recess and the center position of the second discharge one-way valve are on the same vertical line.

[0012] Preferably, the auxiliary cleaning mechanism includes a placement frame fixedly connected to the side wall of the base, the inner wall of the placement frame is fixedly connected to an air pump, the output end of the air pump is fixedly connected to a hose, and the air outlet end of the hose is fixedly connected to an air jet nozzle.

[0013] Preferably, the outer wall of the air jet nozzle is fixedly connected with a hook that matches the outer wall of the placement frame.

[0014] Preferably, a pressure ring is fixedly sleeved on the outer wall of the conduit, and a sealing rubber ring matching the mouth of the asphalt sampling bottle is movably connected to the bottom end of the pressure ring.

[0015] Preferably, a power supply component is fixedly embedded inside the base, and a control switch is fixedly connected to the upper surface of the base.

[0016] Preferably, a sealing ring is fixedly embedded in the outer wall of the bottom end of the connecting pipe, and the outer wall of the sealing ring is sealingly and slidably connected to the inner wall of the movable cover.

[0017] Compared with the prior art, the utility model provides a negative pressure sample delivery device for asphalt sample laboratory, which has the following beneficial effects:

[0018] 1. The asphalt sample laboratory negative pressure sample delivery device is provided with a first discharge one-way valve, a negative pressure extraction mechanism, an asphalt sampling bottle limit mechanism and a second discharge one-way valve. When the asphalt sample needs to be taken out from the asphalt sampling bottle and delivered to the test equipment, the asphalt sample is firstly put upside down on the placement groove of the base, and the moving sleeve is pulled. The moving sleeve stretches the spring to generate a restoring force. Finally, the limit plate is put on the asphalt sampling bottle to ensure the sealing and stability of the asphalt sampling bottle connection. Then the sample delivery container is placed on the placement plate, and the motor is started by the control switch. The motor moves the screw nut up and down through the reciprocating screw rod. The mother drives the movable cover to move up and down through the U-shaped block and the plug ring. During the upward and downward movement of the movable cover, air is discharged through the first discharge one-way valve and the second discharge one-way valve, and a negative pressure environment is generated inside the asphalt sampling bottle. Then, under the action of negative pressure, the asphalt sample inside the asphalt sampling bottle can be smoothly and quickly discharged into the sample delivery container through the first discharge one-way valve, the connecting pipe, the movable cover and the second discharge one-way valve, saving time and effort. This mechanism enables the device to have the function of automatically taking out asphalt samples under negative pressure, thereby increasing the speed of the asphalt sample delivery process, which can not only improve the convenience and efficiency of asphalt test operations, but also reduce the labor intensity of staff.

[0019] 2. The negative pressure sample delivery device for asphalt sample laboratory can conveniently adjust the position of the placement plate and the test tube placement recess through the material receiving mechanism, the movable frame and the limit bolts, so that the top of the sample delivery container placed on the placement plate or the test tube placement recess is as close as possible to the second discharge one-way valve, thereby avoiding splashing and waste of asphalt samples. This mechanism enables the device to have the function of adjusting the placement position of the sample delivery container.

[0020] 3. The asphalt sample laboratory negative pressure sample delivery device has an auxiliary cleaning mechanism. When the device is used, first remove the asphalt sampling bottle, then rotate and separate the threaded ring, and take out the catheter, and also take out the sealing rubber ring, and pull out the pin to separate the plug ring from the U-shaped block, and then pull out the movable cover and rotate and separate the connecting pipe, so that the device contacting the asphalt sample parts can be disassembled separately and cleaned conveniently. In addition, by starting the air pump, the air pump conveys air to the jet nozzle through the hose, and the high-speed airflow ejected from the jet nozzle can further facilitate the cleaning of the device. This mechanism enables the asphalt sample contact parts in the device to have the ability to be easily disassembled and assembled, and at the same time, the cleaning auxiliary mechanism can effectively improve the convenience of cleaning the device.

[0021] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model enables the device to have the function of automatically taking out the asphalt sample by negative pressure and adjusting the placement position of the sample delivery container, thereby improving the speed of the asphalt sample delivery process. It can not only improve the convenience and efficiency of the asphalt test operation, but also reduce the labor intensity of the staff. At the same time, the parts of the device that contact the asphalt sample have the ability to be easily disassembled and assembled, and the cleaning auxiliary mechanism can effectively improve the convenience of cleaning the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the negative pressure sample delivery device for asphalt sample laboratory proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the negative pressure extraction mechanism in the negative pressure sample delivery device for asphalt sample laboratory proposed by the utility model;

[0024] Figure 3 This is a structural schematic diagram of the auxiliary cleaning mechanism in the negative pressure sample delivery device for asphalt sample laboratory proposed by the utility model;

[0025] Figure 4 This is a schematic structural diagram of part A of the asphalt sample laboratory negative pressure sample delivery device proposed by the utility model.

[0026] In the figure: 1 base, 2 threaded ring, 3 conduit, 4 first discharge one-way valve, 5 asphalt sampling bottle limiting mechanism, 51 guide rod, 52 spring, 53 movable sleeve, 54 limiting plate, 6 support plate, 7 material receiving mechanism, 71 movable frame, 72 limiting bolt, 73 placement plate, 8 negative pressure extraction mechanism, 81 plug ring, 82 fixed block, 83 motor, 84 reciprocating screw rod, 85 screw rod nut, 86 U-shaped block, 87 latch, 9 auxiliary cleaning mechanism, 91 placement frame, 92 air pump, 93 hose, 94 jet nozzle, 10 connecting pipe, 11 movable cover, 12 second discharge one-way valve, 13 test tube placement concave block, 14 hook, 15 pressure ring, 16 sealing rubber ring, 17 power supply component, 18 control switch, 19 sealing ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-4The asphalt sample laboratory negative pressure sample delivery device comprises a base 1, the upper surface of the base 1 is fixedly connected with an asphalt sampling bottle limiting mechanism 5, the asphalt sampling bottle limiting mechanism 5 comprises a guide rod 51 fixedly connected with the upper surface of the base 1, the rod wall of the guide rod 51 is sleeved with a spring 52 and a movable sleeve 53, the two ends of the spring 52 are respectively fixedly connected with the lower surface of the movable sleeve 53 and the upper surface of the base 1, and the outer wall of the movable sleeve 53 is fixedly connected with a limiting plate 54 matched with the bottom of the asphalt sampling bottle.

[0029] The upper surface of the base 1 is provided with a placement groove, and the groove wall of the placement groove is provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected with a threaded ring 2, the inner wall of the threaded ring 2 is fixedly connected with a conduit 3, the outer wall of the conduit 3 is fixedly sleeved with a pressure ring 15, the bottom end of the pressure ring 15 is movably connected with a sealing rubber ring 16 that matches the mouth of the asphalt sampling bottle, and the sealing rubber ring 16 can improve the sealing performance of the connection between the device and the asphalt sampling bottle, the bottom end of the conduit 3 is fixedly connected with a first discharge one-way valve 4, and the bottom end of the base 1 is provided with a A deep groove is formed, and a threaded countersunk hole is provided on the groove wall of the deep groove, and a connecting pipe 10 is threadedly and sealedly connected to the hole wall of the threaded countersunk hole, the first discharge one-way valve 4 is located inside the connecting pipe 10, and a movable cover 11 is jointly sealed and sleeved on the outer wall of the connecting pipe 10, and a second discharge one-way valve 12 is fixedly embedded on the bottom end of the movable cover 11, and a sealing ring 19 is fixedly embedded on the outer wall of the bottom end of the connecting pipe 10, and the outer wall of the sealing ring 19 is sealingly and slidingly connected to the inner wall of the movable cover 11, and the sealing ring 19 can improve the sealing performance of the connection between the movable cover 11 and the connecting pipe 10.

[0030] The outer wall of the movable cover 11 is fixedly connected with a negative pressure extraction mechanism 8, and the negative pressure extraction mechanism 8 includes an insert ring 81 fixedly connected with the outer wall of the movable cover 11, and the inner wall of the deep groove of the base 1 is fixedly connected with a fixed block 82, and the lower surface of the fixed block 82 is fixedly connected with a motor 83, and the top of the motor 83 passes through the upper surface of the fixed block 82 and is fixedly connected with a reciprocating screw rod 84, and the top of the reciprocating screw rod 84 is connected with the groove wall of the deep groove of the base 1 by bolts, and the rod wall of the reciprocating screw rod 84 is threadedly sleeved with a screw nut 85. The outer wall of the screw nut 85 is fixedly connected with a U-shaped block 86. The outer wall of the plug ring 81 is located on the inner side of the U-shaped block 86. The outer wall of the U-shaped block 86 is provided with a socket matched with the plug ring 81, and the hole wall of the socket is connected with a pin 87 matched with the inner wall of the plug ring 81. This mechanism enables the device to automatically take out the asphalt sample under negative pressure, thereby improving the speed of the asphalt sample delivery process, which can not only improve the convenience and efficiency of the asphalt test operation, but also reduce the labor intensity of the staff.

[0031] Two symmetrically distributed support plates 6 are fixedly connected to the lower surface of the base 1, and a material receiving mechanism 7 is sleeved on the outer wall of one of the support plates 6. The material receiving mechanism 7 includes a movable frame 71 movably connected to the outer wall of the support plate 6. A threaded hole is opened on the outer wall of the movable frame 71, and the hole wall of the threaded hole is threadedly connected to a limiting bolt 72. The outer wall of the movable frame 71 is fixedly connected to a placement plate 73, and a test tube placement recess 13 is fixedly embedded on the upper surface of the placement plate 73. The center position of the test tube placement recess 13 and the second discharge one-way valve 12 are on the same vertical line. This mechanism enables the device to have the function of adjusting the placement position of the sample container.

[0032] The side wall of the base 1 is fixedly connected with an auxiliary cleaning mechanism 9, and the auxiliary cleaning mechanism 9 includes a placement frame 91 fixedly connected to the side wall of the base 1, an inner wall of the placement frame 91 is fixedly connected with an air pump 92, an output end of the air pump 92 is fixedly connected with a hose 93, an air outlet end of the hose 93 is fixedly connected with an air jet nozzle 94, and an outer wall of the air jet nozzle 94 is fixedly connected with a hook 14 that cooperates with the outer wall of the placement frame 91. This mechanism can effectively improve the convenience of cleaning the device.

[0033] A power supply assembly 17 is fixedly embedded inside the base 1, and a control switch 18 is fixedly connected to the upper surface of the base 1. The air pump 92 and the motor 83 are electrically connected to the power supply assembly 17 through the control switch 18. This electrical connection is a prior art and a commonly used technical means by people in this field, so it will not be elaborated on.

[0034] In the present invention, when it is necessary to take out the asphalt sample from the asphalt sampling bottle and send it to the test equipment, firstly, the asphalt sample is inverted on the placement groove of the base 1, and the movable sleeve 53 is pulled, and the movable sleeve 53 stretches the spring 52 to generate a restoring force, and finally the limit plate 54 is sleeved on the asphalt sampling bottle to ensure the sealing and stability of the connection of the asphalt sampling bottle, and then the sample delivery container is placed on the placement plate 73, and the motor 83 is started by the control switch 18. The motor 83 moves the screw nut 85 up and down through the reciprocating screw 84, and the screw nut 85 drives the movable cover 11 to move up and down through the U-shaped block 86 and the insert ring 81. During the up and down movement of the movable cover 11, the air is discharged through the first discharge check valve 4 and the second discharge check valve 12, and the internal part of the asphalt sampling bottle is produced. Negative pressure is generated, and then under the action of negative pressure, the asphalt sample inside the asphalt sampling bottle can be smoothly and quickly discharged into the sample delivery container from the first discharge one-way valve 4, the connecting pipe 10, the movable cover 11 and the second discharge one-way valve 12, which saves time and effort. The position of the placement plate 73 and the test tube placement recess 13 can be conveniently adjusted by moving the frame 71 and the limit bolt 72, so that the top of the sample delivery container placed on the placement plate 73 or the test tube placement recess 13 is made as close as possible to the second discharge one-way valve 12, thereby avoiding the asphalt sample from splashing and wasting. This mechanism enables the device to have the function of automatically taking out the asphalt sample under negative pressure and adjusting the placement position of the sample delivery container, thereby improving the speed of the asphalt sample delivery process, which can not only improve the convenience and efficiency of the asphalt test operation, but also reduce the labor intensity of the staff.

[0035] When the device is finished using, first remove the asphalt sampling bottle, then rotate and separate the threaded ring 2, and take out the catheter 3, and also take out the sealing rubber ring 16, and separate the plug ring 81 from the U-shaped block 86 by pulling out the pin 87, then pull out the movable cover 11, and rotate and separate the connecting pipe 10, so that the device contacting the asphalt sample parts can be disassembled separately and cleaned conveniently. In addition, by starting the air pump 92, the air pump 92 delivers air to the jet nozzle 94 through the hose 93, and the high-speed airflow ejected from the jet nozzle 94 can further facilitate the cleaning of the device. This mechanism enables the asphalt sample contacting parts in the device to have the ability to be easily disassembled and assembled, and at the same time, the cleaning auxiliary mechanism can effectively improve the convenience of cleaning the device.

Claims

1. A negative pressure sample delivery device for asphalt sample laboratory, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to an asphalt sampling bottle limiting mechanism (5); the upper surface of the base (1) is provided with a placement groove, and the groove wall of the placement groove is provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected to a threaded ring (2); the inner wall of the threaded ring (2) is fixedly connected to a conduit (3), and the bottom end of the conduit (3) is fixedly connected to a first discharge one-way valve (4); the bottom end of the base (1) is provided with a deep groove matching the placement groove, and the groove wall of the deep groove is provided with a threaded countersunk hole, and the hole wall of the threaded countersunk hole is threadedly sealed with a connecting pipe (10 ), the first discharge one-way valve (4) is located inside the connecting pipe (10), the outer wall of the connecting pipe (10) is jointly sealed with a movable cover (11), the bottom end of the movable cover (11) is fixedly embedded with a second discharge one-way valve (12), the outer wall of the movable cover (11) is fixedly connected with a negative pressure extraction mechanism (8), the lower surface of the base (1) is fixedly connected with two symmetrically distributed support plates (6), the outer wall of one of the support plates (6) is sleeved with a material receiving mechanism (7), and the side wall of the base (1) is fixedly connected with an auxiliary cleaning mechanism (9).

2. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: The asphalt sampling bottle limiting mechanism (5) comprises a guide rod (51) fixedly connected to the upper surface of the base (1); a spring (52) and a movable sleeve (53) are sleeved on the rod wall of the guide rod (51); two ends of the spring (52) are respectively fixedly connected to the lower surface of the movable sleeve (53) and the upper surface of the base (1); and the outer wall of the movable sleeve (53) is fixedly connected to a limiting plate (54) matched with the bottom of the asphalt sampling bottle.

3. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: The negative pressure extraction mechanism (8) comprises an insert ring (81) fixedly connected to the outer wall of the movable cover (11); a fixing block (82) is fixedly connected to the inner wall of the deep groove of the base (1); a motor (83) is fixedly connected to the lower surface of the fixing block (82); the top end of the motor (83) passes through the upper surface of the fixing block (82) and is fixedly connected to a reciprocating screw (84); the top end of the reciprocating screw (84) is connected to the groove wall of the deep groove of the base (1) by bolts; a screw nut (85) is threadedly sleeved on the rod wall of the reciprocating screw (84); a U-shaped clamping block (86) is fixedly connected to the outer wall of the screw nut (85); the outer wall of the insert ring (81) is located on the inner side of the U-shaped clamping block (86); the outer wall of the U-shaped clamping block (86) is provided with a plug hole matching the insert ring (81); and the hole wall of the plug hole is connected with a latch (87) matching the inner wall of the insert ring (81).

4. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: The material receiving mechanism (7) comprises a movable frame (71) movably connected to the outer wall of the support plate (6); a threaded hole is provided on the outer wall of the movable frame (71); a limit bolt (72) is threadedly connected to the hole wall of the threaded hole; and a placement plate (73) is fixedly connected to the outer wall of the movable frame (71).

5. The asphalt sample laboratory negative pressure sample delivery device according to claim 4, characterized in that: A test tube placement recess (13) is fixedly embedded on the upper surface of the placement plate (73), and the center position of the test tube placement recess (13) and the second discharge one-way valve (12) are located on the same vertical line.

6. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: The auxiliary cleaning mechanism (9) comprises a placement frame (91) fixedly connected to the side wall of the base (1); an inner wall of the placement frame (91) is fixedly connected to an air pump (92); an output end of the air pump (92) is fixedly connected to a hose (93); and an air outlet end of the hose (93) is fixedly connected to an air jet nozzle (94).

7. The asphalt sample laboratory negative pressure sample delivery device according to claim 6, characterized in that: The outer wall of the jet nozzle (94) is fixedly connected with a hook (14) which matches the outer wall of the placement frame (91).

8. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: The outer wall of the conduit (3) is fixedly sleeved with a pressure ring (15), and the bottom end of the pressure ring (15) is movably connected with a sealing rubber ring (16) that matches the mouth of the asphalt sampling bottle.

9. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: A power supply component (17) is fixedly embedded inside the base (1), and a control switch (18) is fixedly connected to the upper surface of the base (1).

10. The asphalt sample laboratory negative pressure sample delivery device according to claim 1, characterized in that: A sealing ring (19) is fixedly embedded in the outer wall of the bottom end of the connecting pipe (10), and the outer wall of the sealing ring (19) is sealingly and slidably connected to the inner wall of the movable cover (11).

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