Fire hydrant assembly equipment

Abstract

The present invention relates to the technical field of assembly equipment, specifically a fire hydrant assembly equipment, including a support table, a ring mechanism, a vertical bracket, a transmission mechanism and a clamp mechanism. The ring mechanism includes a No. 1 semicircular ring, a No. 2 semicircular ring and a connecting rod, wherein the No. 1 semicircular ring and the No. 2 semicircular ring are connected to one end of the connecting rod by a hinged manner, and the transmission mechanism includes a mounting cylinder and a driven sprocket mounted on the mounting cylinder, and the driven sprocket is driven by the driving sprocket to achieve synchronous rotation, thereby improving the existing manual assembly of fire hydrants and underground pipes by tightening bolts and nuts one by one to tightening multiple bolts and nuts at the same time. When multiple bolts and nuts are tightened at the same time, it is convenient to assemble large quantities of fire hydrants, saving a lot of manpower and improving assembly efficiency. At the same time, when the bolts and nuts are tightened, the force used is the same, ensuring that the flange is stressed evenly, thereby extending the service life of the fire hydrant.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly equipment, in particular to fire hydrant assembly equipment. Background Art

[0002] A ground fire hydrant is an outdoor ground fire water supply facility. It is an essential fire-fighting equipment in cities, especially in urban areas and areas with fewer rivers to ensure the fire water supply needs. It should be installed in factories, mines, warehouses, docks, freight yards, high-rise buildings, public places and other densely populated areas if conditions permit. Ground fire hydrants are used to supply water to fire trucks or directly connect to water hoses and water guns for fire extinguishing. They are special facilities for outdoor essential fire water supply.

[0003] At present, when assembling the hydrant body and the underground pipe of the above-ground fire hydrant, the flange through-hole of the hydrant body and the flange through-hole of the underground pipe are generally manually aligned, and then the bolts and nuts are manually aligned and tightened one by one. Especially when assembling in large quantities, this method consumes a huge amount of manpower and is inefficient.

[0004] Secondly, when manually tightening the bolts and nuts, there is no guarantee that the force used to tighten each bolt and nut is the same, which will cause uneven force on the flange. When the water supply starts, the pressure generated by the water cannot be evenly absorbed by the flange, which may damage the fire hydrant body or underground pipe, and cause rupture over time, resulting in danger. Summary of the Invention

[0005] The present invention provides a fire hydrant assembly device to solve the problems in the related art of fire hydrant assembly such as high labor consumption, low assembly efficiency and uneven manual force during the assembly process.

[0006] The present invention provides a fire hydrant assembly device, including a support table, a holding ring mechanism, a vertical bracket, a transmission mechanism and a clamp mechanism. The upper end surface of the support table is provided with an arc-shaped limit groove, and the bottom of the vertical bracket is slidably arranged in the arc-shaped limit groove. A convex limit groove is vertically provided inside the vertical bracket, and an electric slider is slidably arranged in the convex limit groove. Two electric sliders are provided and distributed up and down, and the holding ring mechanism is fixedly provided on both electric sliders.

[0007] The ring-holding mechanism includes a No. 1 semicircular ring, a No. 2 semicircular ring and a connecting rod. The No. 1 semicircular ring and the No. 2 semicircular ring are connected to one end of the connecting rod by a hinged manner, and the electric slider is installed at the other end of the connecting rod. The end faces of the No. 1 semicircular ring and the No. 2 semicircular ring are installed with magnetic layers with opposite magnetic properties. The No. 1 semicircular ring and the No. 2 semicircular ring form a complete ring structure through magnetic attraction.

[0008] The No. 1 semicircular ring and the No. 2 semicircular ring are both hollow structures, and transmission mechanisms are installed inside both of them. Three through holes are opened on the top of the No. 1 semicircular ring and the No. 2 semicircular ring. The transmission mechanism includes a mounting cylinder, and three mounting cylinders are rotatably installed inside the No. 1 semicircular ring.

[0009] The transmission mechanism inside the second semicircular ring and the transmission mechanism inside the first semicircular ring are distributed symmetrically on the left and right. The six mounting cylinders in the two transmission mechanisms are evenly distributed along the annular structure formed by the first semicircular ring and the second semicircular ring. The six mounting cylinders correspond one-to-one to the six through holes, and a clamp mechanism is provided in the mounting cylinders.

[0010] In one possible implementation, a slot is provided on the outside of the second semicircular ring, and a card strip is installed on the outside of the first semicircular ring at a position corresponding to the slot. The shape of the card strip is the same as that of the slot, and the size of the card strip is larger than that of the slot, and the card strip is snapped into engagement with the slot.

[0011] In one possible implementation, the transmission mechanism also includes a driven sprocket, a driving sprocket, a tensioning wheel and a chain. The three mounting cylinders are fixedly provided with a driven sprocket, and the interior of the No. 1 semicircular ring is also rotatably provided with a driving sprocket. There are two tensioning wheels, and one is distributed between each of the three driven sprockets. The chain is provided on the driving sprocket and the three driven sprockets, and passes around the tensioning wheel to form a closed loop.

[0012] In one possible implementation, the mounting cylinder includes an annular cylinder, an annular cavity, a limiting groove, a clearance hole and a rubber gasket. An annular cavity is provided on the top of the annular cylinder, a limiting groove is provided on the bottom of the annular cavity, two symmetrical clearance holes are provided on the inner wall of the annular cylinder, multiple rubber gaskets are fixedly arranged on the bottom of the annular cylinder, and the multiple rubber gaskets are distributed in a circle, and a clamp mechanism is provided inside the annular cavity.

[0013] In one possible implementation, the clamp mechanism includes a gear, a rack, a guide ball and a clamping claw. A gear is rotatably arranged in the annular cavity, and racks meshing with the gear are respectively arranged on the upper and lower edges of the gear.

[0014] In one possible implementation, the clamp includes a V-shaped clamping portion and a connecting portion, one end of the connecting portion of the clamp is connected to the rack, and the other end is connected to the V-shaped clamping portion, a guide ball is fixedly provided on the connecting portion of the clamp that slides with the limit groove, and the V-shaped clamping portion of the clamp passes through the clearance hole.

[0015] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0016] The existing manual assembly of fire hydrants and underground pipes by locking bolts and nuts one by one is improved to locking multiple bolts and nuts at the same time. When multiple bolts and nuts are locked at the same time, a lot of manpower is saved and assembly efficiency is improved when assembling large quantities of fire hydrants. At the same time, when the bolts and nuts are locked, the force used is the same, which ensures that the flange is balanced and the service life of the fire hydrant is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 It is a three-dimensional diagram of the fire hydrant and underground pipe assembled according to the present invention.

[0019] Figure 2 yes Figure 1 Top view.

[0020] Figure 3 It is a three-dimensional diagram of the ring-embracing mechanism of the present invention in an open state.

[0021] Figure 4 It is a schematic diagram of the internal structure of the ring-embracing mechanism of the present invention in a closed state.

[0022] Figure 5 It is a schematic diagram of the internal structure of the ring mechanism of the present invention when it is in the open state.

[0023] Figure 6 It is a schematic diagram of the working state change of the clamp mechanism of the present invention.

[0024] Figure 7 It is a three-dimensional diagram of a partial structure of the annular cylinder of the present invention.

[0025] Figure 8 It is a structural schematic diagram of the mounting cylinder of the present invention without the fixture mechanism installed.

[0026] Figure 9 Schematic diagram of the structure after the fire hydrant and underground pipe are aligned.

[0027] In the figure: 1. Support table; 11. Arc-shaped limit groove; 2. Underground pipe; 3. Flange No. 1; 4. Fire hydrant; 5. Flange No. 2; 6. Ring mechanism; 60. Semi-circular ring No. 1; 61. Semi-circular ring No. 2; 62. Connecting rod; 601. Clamping strip; 611. Clamping groove; 7. Vertical bracket; 70. Electric slider; 71. Convex limit groove; 8. Transmission mechanism; 80. Mounting cylinder; 801. Circular cylinder; 802. Circular cavity; 803. Limit groove; 804. Clearance hole; 805. Rubber gasket; 81. Driven sprocket; 82. Driving sprocket; 83. Tensioner; 84. Chain; 9. Clamp mechanism; 90. Gear; 91. Rack; 92. Guide ball; 93. Clamp. Implementation Method

[0028] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described below, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] See also Figure 1 and Figure 2 A fire hydrant assembly device includes a support table 1, a holding ring mechanism 6, a vertical bracket 7, a transmission mechanism 8 and a clamp mechanism 9. The upper end surface of the support table 1 is provided with an arc-shaped limiting groove 11, and the bottom of the vertical bracket 7 is slidably set in the arc-shaped limiting groove 11. A convex limiting groove 71 is vertically provided inside the vertical bracket 7, and an electric slider 70 is slidably set in the convex limiting groove 71. There are two electric sliders 70, and they are distributed up and down. The holding ring mechanism 6 is fixed on the two electric sliders 70.

[0030] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The ring mechanism 6 includes a No. 1 semicircular ring 60, a No. 2 semicircular ring 61 and a connecting rod 62. The No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 are connected to one end of the connecting rod 62 by a hinged manner. The electric slider 70 is installed at the other end of the connecting rod 62. The end surface of the No. 2 semicircular ring 61 is provided with a card slot 611. The end surface of the No. 1 semicircular ring 60 is provided with a card strip 601 at a position corresponding to the card slot 611. The shape of the card strip 601 is the same as that of the card slot 611, and the size of the card strip 601 is larger than the size of the card slot 611. The end faces of the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 are installed with a magnetic layer (not shown in the drawings), and the magnetic properties are opposite. When the clamping strip 601 is clamped with the clamping groove 611, the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 form a complete annular structure; manually open the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61, and manually put the aligned fire hydrant 4 and underground pipe 2 into the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61, and then manually close the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 to form a complete annular structure.

[0031] See also Figure 4 and Figure 5, the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 are both hollow structures, and a transmission mechanism 8 is installed inside the two. Three through holes are opened on the top of the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61. The transmission mechanism 8 includes a mounting cylinder 80, a driven sprocket 81, a driving sprocket 82, a tensioning wheel 83 and a chain 84. The interior of the No. 1 semicircular ring 60 is rotatably mounted with three mounting cylinders 80, and the three mounting cylinders 80 are fixedly sleeved with driven sprockets 81. The interior of the No. 1 semicircular ring 60 is also rotatably mounted with a driving sprocket 82, which is driven by an external motor. There are two tensioning wheels 83, and one is distributed between each of the three driven sprockets 81. The chain 84 is sleeved on the driving sprocket 82 and the three driven sprockets 81, and passes around the tensioning wheel 83 to form a closed loop. The transmission mechanism 8 inside the No. 2 semicircular ring 61 and the No. 1 semicircular ring 61 are connected to The transmission mechanism 8 inside the No. 1 semicircular ring 60 is distributed symmetrically on the left and right, and the six mounting cylinders 80 in the two transmission mechanisms 8 are evenly distributed along the annular structure formed by the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61, and the six mounting cylinders 80 correspond to the six through holes one by one. Start the external motor 1 to drive the active sprocket 82 to rotate, the active sprocket 82 drives the chain 84 to rotate, the chain 84 drives the three driven sprockets 81 to rotate synchronously, and the three driven sprockets 81 drive the mounting cylinder 80 to rotate. Since the internal transmission mechanism 8 of the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 are the same, the six mounting cylinders 80 can be rotated at the same time, so that the six bolts and nuts are locked at the same time, and the force used for locking is the same. It should be noted that the driven sprocket 81 in the upper holding ring mechanism 6 and the driven sprocket 81 in the lower holding ring mechanism 6 rotate in opposite directions.

[0032] See also Figure 7 and Figure 8 The mounting cylinder 80 includes an annular cylinder 801, an annular cavity 802, a limiting groove 803, a clearance hole 804 and a rubber gasket 805. The top of the annular cylinder 801 is provided with an annular cavity 802, the bottom of the annular cavity 802 is provided with a limiting groove 803, the inner wall of the annular cylinder 801 is provided with two symmetrical clearance holes 804, and the bottom of the annular cylinder 801 is fixed with a plurality of rubber gaskets 805, and the plurality of rubber gaskets 805 are distributed in a circle. A clamp mechanism 9 is provided inside the annular cavity 802, as shown in FIG. Figure 8 As shown, the limit groove 803 restricts the clamping jaw 93 to move only left and right, and the clearance hole 804 allows the clamping jaw 93 to pass through and exit freely during the process of clamping the bolt and nut. When the bolt and nut are inserted, multiple rubber gaskets 805 support the bolt and nut. During the process of screwing and tightening the bolt and nut, the bolt can pass through the rubber gasket 805 and contact the No. 2 flange 5 under the action of force.

[0033] See also Figure 6The clamping mechanism 9 includes a gear 90, a rack 91, a guide ball 92 and a clamping claw 93. The gear 90 is rotatably arranged in the annular cavity 802. The gear 90 can be driven by an external motor 2. The upper and lower edges of the gear 90 are respectively provided with a rack 91 that meshes with the gear 90. The clamping claw 93 includes a V-shaped clamping portion and a connecting portion. One end of the connecting portion of the clamping claw 93 is connected to the rack 91, and the other end is connected to the V-shaped clamping portion. A guide ball 92 that slides with the limit groove 803 is fixed on the connecting portion of the clamping claw 93. The V-shaped clamping portion of the clamping claw 93 passes through the clearance hole 804. All external motors 2 are started to drive the gears. The wheel 90 rotates counterclockwise, and the gear 90 meshes with the rack 91, thereby driving the upper and lower racks 91 to move toward each other, and the rack 91 drives the left and right clamps 93 to move toward each other synchronously until the bolts and nuts are clamped. After the bolts and nuts are tightened, all external motors 2 are started to drive the gear 90 to rotate clockwise, and the gear 90 meshes with the rack 91, thereby driving the upper and lower racks 91 to move in opposite directions, and the rack 91 drives the left and right clamps 93 to move in opposite directions synchronously until the bolts and nuts are loosened. Then manually open the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61 to take out the assembled underground pipe 2 and fire hydrant 4.

[0034] Working principle: S1. First, fix the underground pipe 2 on the supporting table 1, manually align the fire hydrant 4 and the underground pipe 2, and align the No. 2 flange 5 on the fire hydrant 4 with the No. 1 flange 3 on the underground pipe 2, and align the holes on the No. 1 flange 3 with the holes on the No. 2 flange 5.

[0035] S2. Bolts and nuts are placed in the through holes of the upper and lower holding ring mechanisms 6, respectively. The rubber gasket 805 supports the bolts and nuts. Then, the first semicircular ring 60 and the second semicircular ring 61 are closed to form a complete ring structure, holding the fire hydrant 4 and the underground pipe 2 respectively. The two holding ring mechanisms 6 are driven by the electric slider 70 to move until the upper surface of the lower holding ring mechanism 6 is in contact with the lower surface of the first flange 3, and a gap is left between the upper holding ring mechanism 6 and the upper surface of the second flange 5.

[0036] The bolt in the upper holding ring mechanism 6 extends into the hole on the No. 2 flange 5. If the bolt is not aligned with the hole on the No. 2 flange 5, the vertical bracket 7 is moved along the arc-shaped limit groove 11 until the bolt extends into the hole on the No. 2 flange 5. It should be noted that the bottom of the bolt passes through the holes on the No. 2 flange 5 and the No. 1 flange 3 and contacts the nut. At the same time, the bolt is still supported by the rubber gasket 805.

[0037] S3, the clamp mechanism 9 operates to clamp and fix the bolts and nuts respectively, and then the transmission mechanism 8 is started at the same time, wherein the driven sprocket 81 in the upper holding ring mechanism 6 and the driven sprocket 81 in the lower holding ring mechanism 6 rotate in opposite directions, thereby gradually tightening the bolts and nuts. During the process of tightening the bolts and nuts, the upper electric slider 70 drives the holding ring mechanism 6 to move downward synchronously.

[0038] S4. When the head of the bolt is close to the No. 2 flange 5, the transmission mechanism 8 in the upper holding ring mechanism 6 stops working, the upper electric slider 70 stops moving down, the transmission mechanism 8 in the lower holding ring mechanism 6 continues working, and the lower electric slider 70 remains stationary. The nut will pull the bolt down during the rotation process until the bolt is partially detached from the rubber gasket 805 and contacts the upper surface of the No. 2 flange 5. At this time, the bolt and nut lock the No. 1 flange 3 and the No. 2 flange 5.

[0039] S5, the clamp mechanism 9 operates to loosen the clamping of the bolts and nuts, the upper electric slider 70 drives the upper holding ring mechanism 6 to move upward, and the lower electric slider 70 drives the lower holding ring mechanism 6 to move downward. When the upper holding ring mechanism 6 and the lower holding ring mechanism 6 are moved to the appropriate positions respectively, manually open the No. 1 semicircular ring 60 and the No. 2 semicircular ring 61, and then remove the assembled fire hydrant 4 and underground pipe 2 from the support table 1.

[0040] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, integral or sliding connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fire hydrant assembly device, characterized in that: The assembly equipment includes a support table, a holding ring mechanism, a vertical bracket, a transmission mechanism and a clamp mechanism. The upper end surface of the support table is provided with an arc-shaped limit groove, the bottom of the vertical bracket is slidably set in the arc-shaped limit groove, the interior of the vertical bracket is vertically provided with a convex limit groove, and an electric slider is slidably set in the convex limit groove. There are two electric sliders, which are distributed up and down, and the holding ring mechanism is fixed on both electric sliders. The ring-holding mechanism includes a first semicircular ring, a second semicircular ring and a connecting rod. The first semicircular ring and the second semicircular ring are connected to one end of the connecting rod by a hinged manner, and the electric slider is installed at the other end of the connecting rod. The end surfaces of the first semicircular ring and the second semicircular ring are installed with magnetic layers with opposite magnetic properties. The first semicircular ring and the second semicircular ring form a complete ring structure through magnetic attraction; The first and second semicircular rings are both hollow structures, and a transmission mechanism is installed inside the two. Three through holes are opened on the top of the first and second semicircular rings. The transmission mechanism includes a mounting cylinder. Three mounting cylinders are rotatably installed inside the first semicircular ring. The transmission mechanism inside the second semicircular ring is symmetrically distributed with the transmission mechanism inside the first semicircular ring. The six mounting cylinders in the two transmission mechanisms are evenly distributed along the annular structure formed by the first semicircular ring and the second semicircular ring. The six mounting cylinders correspond to the six through holes one by one, and a clamp mechanism is provided in the mounting cylinders. The transmission mechanism also includes a driven sprocket, a driving sprocket, a tensioning wheel and a chain. The three mounting cylinders are fixed with a driven sprocket. The driving sprocket is also rotatably installed inside the No. 1 semicircular ring. There are two tensioning wheels, and one is distributed between each of the three driven sprockets. The chain is mounted on the driving sprocket and the three driven sprockets, and passes around the tensioning wheel to form a closed loop.

2. The fire hydrant assembly equipment according to claim 1, characterized in that: A card slot is provided on the end face of the No. 2 semicircular ring, and a card strip is installed on the end face of the No. 1 semicircular ring at a position corresponding to the card slot. The shape of the card strip is the same as that of the card slot, and the size of the card strip is larger than that of the card slot, and the card strip is card-connected with the card slot.

3. The fire hydrant assembly equipment according to claim 1, characterized in that: The mounting cylinder includes an annular cylinder, an annular cavity, a limiting groove, a clearance hole and a rubber gasket. An annular cavity is provided on the top of the annular cylinder, a limiting groove is provided on the bottom of the annular cavity, two symmetrical clearance holes are provided on the inner wall of the annular cylinder, multiple rubber gaskets are fixedly arranged on the bottom of the annular cylinder, and the multiple rubber gaskets are distributed in a circle, and a clamp mechanism is provided inside the annular cavity.

4. The fire hydrant assembly equipment according to claim 3, characterized in that: The clamp mechanism includes a gear, a rack, a guide ball and a clamping claw. A gear is rotatably arranged in the annular cavity, and racks meshing with the gear are respectively arranged on the upper and lower edges of the gear.

5. The fire hydrant assembly equipment according to claim 4, characterized in that: The clamping jaw includes a V-shaped clamping portion and a connecting portion. One end of the connecting portion of the clamping jaw is connected to the rack, and the other end is connected to the V-shaped clamping portion. A guide ball that slides with the limit groove is fixedly provided on the connecting portion of the clamping jaw, and the V-shaped clamping portion of the clamping jaw passes through the clearance hole.

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