CN114441312A - A kind of building material strength testing device - Google Patents

Abstract

The invention relates to the technical field of building material strength detection, in particular to a building material strength detection device. rod, the lower end of the electric push rod penetrates the support plate and extends to the lower end of the support plate, the lower end of the electric push rod is fixedly installed with a detection head, and the middle part of the inner upper end of the device body is fixedly installed with a platform; the device body A processing mechanism is movably arranged between the support plate and the support plate; the processing mechanism includes a fixed plate. By setting the processing mechanism, the stones and dust on the surface of the building material can be cleaned, so as to avoid the stones and dust staying on the surface of the building material and affecting the detection. At the same time, it can reduce the loss of the outer surface of the platform, which is beneficial to prolong the service life of the platform, and can ensure the accuracy of subsequent detection.

Description

A kind of building material strength testing device

technical field

The invention relates to the technical field of building material strength detection, in particular to a building material strength detection device.

Background technique

Building materials can be divided into structural materials, decorative materials and some special materials, among which structural building materials include wood, bamboo, stone, cement, concrete, metal, brick and tile, ceramics, glass, engineering plastics, composite materials, etc. Which kind of structural building materials need to complete a series of quality inspections before they are put into use, including strength testing of building materials, and strength testing requires the use of specific strength testing equipment.

There may be some stones or dust on the surface of the existing building materials during detection. During the detection process, these stones and dust will affect the detection effect, and the stones and dust will also cause damage to the outer surface of the detection head. The life of the detection device is shortened, and the accuracy of subsequent detection is affected.

To this end, a building material strength detection device is proposed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a building material strength detection device. By setting a processing mechanism, the stones and dust on the surface of the building material can be cleaned, so as to avoid the stones and dust staying on the surface of the building material and affecting the accuracy of detection. The loss on the outer surface of the platform can be reduced, the service life of the platform can be prolonged, and the accuracy of subsequent detection can be ensured, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a building material strength detection device, comprising a device body, a support plate is fixedly installed in the middle of the upper end of the device body, and an electric pusher is fixedly installed at the center of the upper end of the support plate. a rod, the lower end of the electric push rod penetrates through the support plate and extends to the lower end of the support plate, the lower end of the electric push rod is fixedly installed with a detection head, and the middle part of the inner upper end of the device body is fixedly installed with a platform;

A processing mechanism is movably arranged between the device body and the support plate;

The processing mechanism includes a fixed plate, the fixed plate is fixedly installed on the lower end of the outer surface of the electric push rod, and the fixed plate is located between the support plate and the detection head, the lower four corners of the fixed plate are fixedly installed with racks, the Gears are installed on both sides of the inner, front and rear ends of the device body, and the racks are meshed with the gears. A threaded rod is fixedly installed on the close ends of the two sets of gears. A threaded block, a telescopic rod is fixedly installed on the upper end of the threaded block, a cylinder is rotatably installed on the upper end of the telescopic rod, a brush is evenly fixed in the middle of the outer surface of the cylinder, and the outer surface of the cylinder is two The side fixed sleeves are provided with rollers;

A clamping plate is slidably installed at the lower end of one side of the rack near the electric push rod, and the clamping plate is matched with the detection head. A No. 1 spring is fixedly installed on the upper end of the clamping plate, and the No. Bottom fixed connection;

When working, first place the building material to be detected on the upper end of the device body, and then connect the electric push rod to the external power supply. Under the action of the support plate, the electric push rod drives the detection head and the fixed plate to move down. The plate is slidably connected to the rack, so when the fixed plate drives the rack to move down, it can drive the clamping plate to squeeze the building material. With the continuous downward movement of the rack, the relative relationship between the rack and the clamping plate Move, at the same time, the clamping plate squeezes the No. 1 spring, which can further increase the stability of the clamping plate under the elastic force of the No. 1 spring. When the building material is placed on the top of the platform, the position of the building material will not move, due to the rack It meshes with the gear, so when the rack moves down, it will drive the gear and the threaded rod to rotate, and the threaded rod and the threaded block are screwed, so the threaded block can move on the outer surface of the threaded rod when the threaded rod rotates. , so as to drive the cylinder to move. Due to the different thicknesses of the building materials, with the cooperation of the telescopic rod and the roller, the gap between the cylinder and the upper end of the building materials of different thicknesses is the same. With the cooperation of the brush, when the cylinder moves The surface of the building material can be cleaned by a brush, and the stones and dust on the surface of the building material can be cleaned by setting the processing mechanism, so as to avoid the stones and dust staying on the surface of the building material, which affects the accuracy of detection, and also can Reducing the wear on the outer surface of the platform is beneficial to prolong the service life of the platform, and can ensure the accuracy of subsequent detection.

Preferably, a water adding mechanism is movably provided on both sides of the upper end of the device body, the water adding mechanism includes a water tank, the water tank is fixedly installed on both sides of the upper end of the device body, and a connecting pipe is connected between the water tank and the cylinder, The outer surface of the cylinder is provided with a through hole;

The connecting pipe is slidably connected with the water tank, and the high end of the water tank is much higher than the height of the cylinder;

When working, the water is injected into the inside of the water tank. Since the height of the water tank is much higher than the height of the cylinder, under the action of the siphon principle, the water inside the water tank can flow into the interior of the cylinder through the connecting pipe and flow out through the through hole. Therefore, the cleaning effect of stones and dust on the surface of building materials can be further improved. By setting a water adding mechanism, water can be sprayed on the surface of building materials, so that when the brush cleans the surface of building materials, the raised dust can be reduced. Therefore, it is beneficial to ensure the detection environment, reduce the impact of dust on the staff, and help to ensure the physical safety of the surrounding staff.

Preferably, a water replenishing mechanism is movably provided inside the water tank, and the water replenishing mechanism includes a water pipe. The water pipes are slidably inserted on both sides of the inside of the water tank, and the water pipes are fixedly connected to the lower end of the fixing plate. A water outlet is provided, a water tank is fixedly installed on both sides of the inner lower end of the device body, the water pipe runs through the water tank and extends to the inside of the water tank, and the lower end of the outer surface of the water pipe is fixedly sleeved with a push plate, and the push plate and the water tank Internal sliding connection, grooves are opened on both sides of the water tank, and a one-way valve is movably inserted at the inner lower end of the water pipe;

The upper and lower ends of the groove are arc-shaped, and the groove is matched with the push plate;

The upper end of the water tank is movably provided with a filter mechanism, the filter mechanism includes a filter screen, the filter screen is slidably inserted at the upper end of the water tank, and rubber blocks are evenly fixed on both sides of the lower end of the filter screen, and the rubber blocks are connected to the upper end of the water tank. The water tank is fixedly connected, and the outer surface of the water pipe is evenly fixed and installed with protrusions, and the protrusions are matched with the filter screen;

The filter screen is inclined, and the filter screen and the water pipe are slidably connected;

When working, with the cooperation of the processing mechanism, when the fixed plate moves downward, it can drive the water pipe to move downward, and when the water pipe moves downward, it will drive the push plate to move downward. When the push plate moves to the lower end of the groove, At this time, the water at the lower end of the water tank flows to the inside of the water pipe, and flows to the inside of the water tank through the water outlet, which can automatically add water to the inside of the water tank. When the fixed plate drives the water pipe to move upward, the push plate moves to the groove. Because there is a gap between the push plate and the groove, the water inside the device body can flow to the lower end of the push plate. Under the action of the one-way valve, the water inside the water pipe will not flow back into the water tank. When moving downward, the protrusion can contact the filter screen and drive the filter screen to move downward. At this time, the filter screen squeezes the rubber block. When the filter screen cannot move, the protrusion can pass through the filter screen. After losing the convex pressure, under the elastic force of the rubber block, the rubber block pushes the filter screen upward, so that the water pipe can drive the filter screen to shake when moving downward, which is beneficial to filter the stones and impurities at the top of the filter screen. By setting up the water replenishment mechanism, with the cooperation of the filtering mechanism, the water resources can be recycled to avoid the waste of water resources, and reduce the cost of detection, and at the same time, the water can be automatically added to the inside of the water tank, reducing the number of staff. workload.

Compared with the prior art, the beneficial effects of the present invention are:

1. By setting the processing mechanism, the stones and dust on the surface of the building materials can be cleaned, so as to prevent the stones and dust from staying on the surface of the building materials, which will affect the accuracy of detection, and at the same time, it can also reduce the loss of the outer surface of the platform, which is conducive to extending the The service life of the platform, and the accuracy of subsequent detection can be guaranteed;

2. By setting the water adding mechanism, water can be sprayed on the surface of the building material, so that when the brush cleans the surface of the building material, the raised dust can be reduced, which is beneficial to ensure the detection environment and reduce the dust on the staff. The impact is conducive to ensuring the physical safety of the surrounding staff.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural sectional view of the present invention;

Fig. 3 is an enlarged view of the structure at place A of Fig. 2 of the present invention;

Fig. 4 is an enlarged view of the structure at place B of Fig. 3 of the present invention;

Fig. 5 is the partial structure sectional view of the present invention;

FIG. 6 is an enlarged view of the structure at C in FIG. 5 of the present invention.

In the figure: 1. device body; 101, support plate; 102, electric push rod; 103, detection head; 104, platform; 2, processing mechanism; 201, fixing plate; 202, rack; 203, gear; 204, thread Rod; 205, threaded block; 206, telescopic rod; 207, cylinder; 208, brush; 209, roller; 3, No. 1 spring; 301, clamping plate; 4, water adding mechanism; 401, water tank; 402, connection Pipe; 403, through hole; 5, water replenishment mechanism; 501, water pipe; 502, water outlet; 503, water tank; 504, push plate; 505, one-way valve; 506, groove; 6, filter mechanism; 601, filter screen ; 602, rubber block; 603, bulge.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 to FIG. 6, the present invention provides a technical solution:

A building material strength detection device, as shown in Figures 1 to 4, includes a device body 1, a support plate 101 is fixedly installed in the middle of the upper end of the device body 1, and an electric motor is fixed at the center of the upper end of the support plate 101. Push rod 102, the lower end of the electric push rod 102 penetrates through the support plate 101 and extends to the lower end of the support plate 101, the lower end of the electric push rod 102 is fixedly installed with the detection head 103, the inner upper end of the device body 1 is fixed in the middle a platform 104 is installed;

A processing mechanism 2 is movably arranged between the device body 1 and the support plate 101;

The processing mechanism 2 includes a fixing plate 201, the fixing plate 201 is fixedly installed on the lower end of the outer surface of the electric push rod 102, and the fixing plate 201 is located between the support plate 101 and the detection head 103, and the lower four corners of the fixing plate 201 are A rack 202 is fixedly installed, and a gear 203 is installed on both sides of the front and rear ends of the device body 1 for mixed rotation. The rack 202 is meshed with the gear 203, and the close ends of the two groups of the gears 203 are fixed and installed together. There is a threaded rod 204, the outer surface of the threaded rod 204 is threadedly driven with a threaded block 205, the upper end of the threaded block 205 is fixedly installed with a telescopic rod 206, and the upper end of the telescopic rod 206 is rotatably installed with a cylinder 207, the A brush 208 is evenly fixed in the middle of the outer surface of the cylinder 207, and rollers 209 are fixedly sleeved on both sides of the outer surface of the cylinder 207;

A clamping plate 301 is slidably installed on the lower end of the rack 202 near the electric push rod 102, and the clamping plate 301 is matched with the detection head 103. A No. 1 spring 3 is fixedly installed on the upper end of the clamping plate 301. No. 1 spring 3 is fixedly connected to the lower end of the fixing plate 201;

When working, first place the building material to be detected on the upper end of the device body 1, and then connect the electric push rod 102 to the external power supply. Under the action of the support plate 101, the electric push rod 102 drives the detection head 103 and the fixed plate 201 to Since the clamping plate 301 is slidably connected with the rack 202, the fixing plate 201 can drive the clamping plate 301 to squeeze the building material when driving the rack 202 to move downward. Move, the relative movement between the rack 202 and the clamping plate 301 occurs, and the clamping plate 301 squeezes the No. 1 spring 3. Under the elastic force of the No. 1 spring 3, the stability of the clamping plate 301 can be further increased. When placed above the platform 104, the position of the building material will not move. Since the rack 202 is meshed with the gear 203, the rack 202 will drive the gear 203 and the threaded rod 204 to rotate when the rack 202 moves downward. The threaded rod 204 It is screwed with the threaded block 205, so when the threaded rod 204 rotates, the threaded block 205 can move on the outer surface of the threaded rod 204, thereby driving the cylinder 207 to move. With the cooperation of the roller 209, the gap between the cylinder 207 and the upper end of the building materials of different thicknesses is the same. Setting the processing mechanism 2 can clean the stones and dust on the surface of the building material, so as to prevent the stones and dust from staying on the surface of the building material, affecting the accuracy of detection, and at the same time, it can also reduce the loss of the outer surface of the platform 104, which is conducive to extending the platform 104 service life, and can ensure the accuracy of subsequent detection.

As an embodiment of the present invention, as shown in FIGS. 1 to 4 , a water adding mechanism 4 is movably provided on both sides of the upper end of the device body 1 , and the water adding mechanism 4 includes a water tank 401 , and the water tank 401 is fixedly installed On both sides of the upper end of the device body 1, connecting pipes 402 are connected between the water tank 401 and the cylinder 207, and the outer surface of the cylinder 207 is provided with through holes 403;

The connecting pipe 402 is slidably connected to the water tank 401, and the high end of the water tank 401 is much higher than the height of the cylinder 207;

During operation, water is injected into the inside of the water tank 401. Since the height of the water tank 401 is much higher than the height of the cylinder 207, under the action of the siphon principle, the water in the water tank 401 can flow to the inside of the cylinder 207 through the connecting pipe 402, And flow out through the through hole 403, so as to further improve the cleaning effect of the stones and dust on the surface of the building material. By setting the water adding mechanism 4, the water can be sprayed on the surface of the building material, so that the brush 208 cleans the surface of the building material. It can reduce the dust that is raised when it is installed, which is conducive to ensuring the detection environment, reducing the impact of dust on the staff, and ensuring the physical safety of the surrounding staff.

As an embodiment of the present invention, as shown in FIG. 2 to FIG. 6 , a water replenishing mechanism 5 is movably provided inside the water tank 401 , and the water replenishing mechanism 5 includes a water pipe 501 , and the water pipe 501 is slidably inserted into the water tank 401 . On both sides of the interior, and the water pipe 501 is fixedly connected to the lower end of the fixing plate 201, the water outlet 502 is evenly opened on the upper and upper ends of the outer surface of the water pipe 501, and the water tank 503 is fixedly installed on both sides of the inner lower end of the device body 1. The water pipe 501 runs through the water tank 401 and extends to the interior of the water tank 503. The lower end of the outer surface of the water pipe 501 is fixedly sleeved with a push plate 504, and the push plate 504 is slidably connected to the interior of the water tank 503. Both sides of the interior of the water tank 503 are provided with a groove 506, the inner lower end of the water pipe 501 is movably inserted with a one-way valve 505;

The upper and lower ends of the groove 506 are arc-shaped, and the groove 506 is matched with the push plate 504;

The upper end of the water tank 503 is movably provided with a filter mechanism 6. The filter mechanism 6 includes a filter screen 601. The filter screen 601 is slidably inserted into the upper end of the water tank 503. Rubber block 602, and the rubber block 602 is fixedly connected with the water tank 503, the outer surface of the water pipe 501 is evenly fixed with protrusions 603, and the protrusions 603 are matched with the filter screen 601;

The filter screen 601 is inclined, and the filter screen 601 and the water pipe 501 are slidably connected;

During operation, with the cooperation of the processing mechanism 2, when the fixed plate 201 moves downward, it can drive the water pipe 501 to move downward, and when the water pipe 501 moves downward, it will drive the push plate 504 to move downward. When the groove 506 is at the lower end, the water at the lower end of the water tank 503 flows to the inside of the water pipe 501, and flows to the inside of the water tank 401 through the water outlet 502, and water can be automatically added to the inside of the water tank 401. When driving the water pipe 501 to move upward, the push plate 504 moves to the inside of the groove 506. Since there is a gap between the push plate 504 and the groove 506, the water in the device body 1 can flow to the lower end of the push plate 504, and the Under the action of the one-way valve 505, the water inside the water pipe 501 will not return to the inside of the water tank 503. When the water pipe 501 moves downward, the protrusion 603 can contact the filter screen 601 and drive the filter screen 601 to move downward. When the filter screen 601 squeezes the rubber block 602, when the filter screen 601 cannot move, the protrusions 603 can pass through the filter screen 601. After the filter screen 601 loses the pressure of the protrusions 603, under the elastic force of the rubber block 602, The rubber block 602 pushes the filter screen 601 to move upward, so that the water pipe 501 can drive the filter screen 601 to shake when moving downward, which is beneficial to filter the stones and impurities on the upper end of the filter screen 601. With the cooperation of 6, water resources can be recycled to avoid waste of water resources, and the cost of detection can be reduced. At the same time, water can be automatically added to the interior of the water tank 401, which reduces the workload of the staff.

working principle:

When working, first place the building material to be detected on the upper end of the device body 1, and then connect the electric push rod 102 to the external power supply. Under the action of the support plate 101, the electric push rod 102 drives the detection head 103 and the fixed plate 201 to Since the clamping plate 301 is slidably connected with the rack 202, the fixing plate 201 can drive the clamping plate 301 to squeeze the building material when driving the rack 202 to move downward. Move, the relative movement between the rack 202 and the clamping plate 301 occurs, and the clamping plate 301 squeezes the No. 1 spring 3. Under the elastic force of the No. 1 spring 3, the stability of the clamping plate 301 can be further increased. When placed above the platform 104, the position of the building material will not move. Since the rack 202 is meshed with the gear 203, the rack 202 will drive the gear 203 and the threaded rod 204 to rotate when the rack 202 moves downward. The threaded rod 204 It is screwed with the threaded block 205, so when the threaded rod 204 rotates, the threaded block 205 can move on the outer surface of the threaded rod 204, thereby driving the cylinder 207 to move. With the cooperation of the roller 209, the gap between the cylinder 207 and the upper end of the building materials with different thicknesses is the same. The water is injected into the water tank 401. Since the height of the water tank 401 is much higher than the height of the cylinder 207, under the action of the siphon principle, the water in the water tank 401 can flow into the cylinder 207 through the connecting pipe 402 and pass through the through hole. 403 flows out, which can further improve the cleaning effect of stones and dust on the surface of building materials. With the cooperation of the processing mechanism 2, when the fixing plate 201 moves downward, it can drive the water pipe 501 to move downward. When the water pipe 501 moves downward It will drive the push plate 504 to move downward. When the push plate 504 moves to the lower end of the groove 506, the water at the lower end of the water tank 503 flows to the inside of the water pipe 501 and flows to the inside of the water tank 401 through the water outlet 502. Water can be automatically added to the inside of the water tank 401. When the fixed plate 201 drives the water pipe 501 to move upward, the push plate 504 moves to the inside of the groove 506. Since there is a gap between the push plate 504 and the groove 506, the device The water in the main body 1 can flow to the lower end of the push plate 504. Under the action of the one-way valve 505, the water in the water pipe 501 will not flow back into the water tank 503. When the water pipe 501 moves downward, the protrusion 603 can Contact with the filter screen 601 and drive the filter screen 601 to move downward. At this time, the filter screen 601 squeezes the rubber block 602. When the filter screen 601 cannot move, the protrusions 603 can pass through the filter screen 601, and the filter screen 601 loses the protrusions. After the pressure of 603 is exerted, under the elastic force of the rubber block 602, the rubber block 602 pushes the filter screen 601 to move upward, so that the The water pipe 501 can drive the filter screen 601 to vibrate when it moves downward, which is beneficial to filter out the stones and impurities on the upper end of the filter screen 601 .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A construction material strength detection device, comprising a device body (1), a support plate (101) is fixedly installed in the middle of the upper end of the device body (1), and a support plate (101) is fixedly installed at the center of the upper end of the support plate (101). An electric push rod (102), the lower end of the electric push rod (102) penetrates through the support plate (101) and extends to the lower end of the support plate (101), the lower end of the electric push rod (102) is fixedly installed with a detection head ( 103), a platform (104) is fixedly installed in the middle of the inner upper end of the device body (1); It is characterized in that a processing mechanism (2) is movably arranged between the device body (1) and the support plate (101); The processing mechanism (2) includes a fixing plate (201), the fixing plate (201) is fixedly installed on the lower end of the outer surface of the electric push rod (102), and the fixing plate (201) is located between the support plate (101) and the detection head ( 103), racks (202) are fixedly installed on the lower four corners of the fixing plate (201), and gears (203) are installed on both sides of the inner front and rear ends of the device body (1) for rotation, and The rack (202) is meshed with the gear (203), a threaded rod (204) is fixedly installed at the close ends of the two groups of the gears (203), and a threaded block is provided on the outer surface of the threaded rod (204) for threaded transmission (205), a telescopic rod (206) is fixedly installed on the upper end of the threaded block (205), a cylinder (207) is rotatably installed on the upper end of the telescopic rod (206), and the outer surface of the cylinder (207) A brush (208) is evenly and fixedly installed in the middle, and rollers (209) are fixedly sleeved on both sides of the outer surface of the cylinder (207). 2 . The device for detecting the strength of building materials according to claim 1 , wherein a clamping plate ( 301 ) is slidably installed at the lower end of one side of the rack ( 202 ) close to the electric push rod ( 102 ), and the clamping plate ( 301 ) is slidably installed. The holding plate (301) is matched with the detection head (103), a No. 1 spring (3) is fixedly installed on the upper end of the holding plate (301), and the No. 1 spring (3) is fixed with the lower end of the fixing plate (201). connect. 3. A building material strength detection device according to claim 1, characterized in that, a water adding mechanism (4) is movably provided on both sides of the upper end of the device body (1), and the water adding mechanism (4) comprises: A water tank (401), the water tank (401) is fixedly installed on both sides of the upper end of the device body (1), a connecting pipe (402) is connected between the water tank (401) and the cylinder (207), and the cylinder ( 207) is provided with a through hole (403) on the outer surface. 4. The device for detecting the strength of building materials according to claim 3, wherein the connecting pipe (402) is slidably connected to the water tank (401), and the high end of the water tank (401) is much higher than the cylinder (401). 207) height. 5. The device for detecting the strength of building materials according to claim 1, characterized in that a water replenishing mechanism (5) is arranged in the interior of the water tank (401), and the water replenishing mechanism (5) comprises a water pipe (501) , the water pipe (501) is slidably inserted on both sides of the inside of the water tank (401), and the water pipe (501) is fixedly connected with the lower end of the fixing plate (201). 502), a water tank (503) is fixedly installed on both sides of the inner lower end of the device body (1), the water pipe (501) runs through the water tank (401) and extends to the inside of the water tank (503), and the water pipe (501) The lower end of the outer surface of the water tank (503) is fixedly sleeved with a push plate (504), and the push plate (504) is slidably connected to the inside of the water tank (503), and grooves (506) are provided on both sides of the inside of the water tank (503), so A check valve (505) is movably inserted at the inner lower end of the water pipe (501). 6. A building material strength detection device according to claim 5, wherein the upper and lower ends of the groove (506) are arc-shaped, and the groove (506) and the push plate (504) match. 7 . The device for detecting the strength of building materials according to claim 6 , wherein the upper end of the water tank ( 503 ) is movably provided with a filter mechanism ( 6 ), and the filter mechanism ( 6 ) comprises a filter screen ( 601 ). 8 . ), the filter screen (601) is slidably inserted at the upper end of the water tank (503), and rubber blocks (602) are evenly fixed on both sides of the lower end of the filter screen (601), and the rubber blocks (602) are connected to the water tank ( 503) Fixed connection, the outer surface of the water pipe (501) is evenly and fixedly installed with protrusions (603), and the protrusions (603) are matched with the filter screen (601). 8 . The device for detecting the strength of building materials according to claim 7 , wherein the filter screen ( 601 ) is inclined, and the filter screen ( 601 ) and the water pipe ( 501 ) are slidably connected. 9 .

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