High-strength heat preservation type double-hollow rod with hoisting connecting device

Abstract

The high-strength heat preservation type double-hollow rod with the hoisting connecting device comprises an outer pipe, flange plates are fixedly connected to the two end opening portions of the outer pipe, an inner pipe is arranged in an inner cavity of the outer pipe and located between the two sets of flange plates, and the two ends of the inner pipe are fixedly connected to the flange plates on the corresponding sides respectively. According to the utility model, through the arrangement of the hoisting connecting devices and the reinforcing ribs, the two groups of lifting hooks respectively penetrate through the hoisting holes in the surfaces of the two groups of connecting plates on the same side, so that an operator can hoist the double hollow rods conveniently, and the hoisting efficiency of the double hollow rods is improved. Meanwhile, when a lifting hook is used for lifting the whole double-hollow rod, the weight of the double-hollow rod and force such as shaking and pulling generated in the lifting process can act on the outer pipe, the reinforcing ribs support the outer pipe, the force is evenly dispersed to all parts of the outer pipe, and the situation that the outer pipe deforms due to the fact that the outer pipe bears too large force is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to high strength heat preservation type double hollow rod with hoisting connecting device technical field, concretely is a kind of high strength heat preservation type double hollow rod with hoisting connecting device. BACKGROUND

[0002] In the industrial field, such as petrochemical industry, for some fluids that need to be transported at a specific temperature, high strength heat preservation type double hollow rod plays a huge role, for example, in the pipeline conveying high-temperature hot oil, the heat preservation performance of double hollow rod can reduce heat loss, maintain oil temperature, thereby ensuring the fluidity of fluid, reducing energy consumption, when conveying low-temperature medium, it can also prevent external heat from entering, maintain the low-temperature state of the medium, and avoid changes in medium properties or chemical reactions caused by temperature changes.

[0003] At present, the Chinese patent with publication number CN218376349U discloses a double hollow double-shoulder sucker rod, which specifically comprises: a hollow sucker rod, flanges are arranged at both ends of the inner hole of the hollow sucker rod, a plurality of through holes are arranged on the flanges, an inner tube is connected at the center position of the flanges, the inner tube is fixed in the inner hole of the sucker rod through the flanges at both ends, a heat preservation layer is arranged outside the inner tube, a water flow channel is arranged between the heat preservation layer and the inner hole wall of the sucker rod, and the water flow of the sucker rod returns through the water flow channel after passing through the through holes on the inner tube and the flanges; the flanges and the inner tube are sealed by a sealing ring, and the two sucker rods are sealed by a sealing ring. The utility model has the advantages that: by means of hot water heating, the difficulties in oil extraction caused by the "three high" of crude oil are avoided in oil extraction, and the recycled hot water saves resources and avoids waste.

[0004] The above-mentioned double hollow double-shoulder sucker rod has some problems in use. Although the hot water heating method is used to avoid the difficulties in oil extraction caused by the "three high" of crude oil in oil extraction, and the recycled hot water saves resources and avoids waste, the length of the hollow sucker rod is relatively long, and in the process of hoisting and transporting, the contact point between the rope and the rod body may be damaged due to excessive pressure at this position. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high strength heat preservation type double hollow rod with hoisting connecting device to solve the problem that the contact point between the rope and the rod body may be damaged due to excessive pressure at this position in the process of hoisting and transporting.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a high -strength heat preservation type double hollow rod with hoisting connecting device, including outer tube, both end port parts of outer tube are fixedly connected with flange plate, the inner chamber of outer tube and be located between two groups of flange plate are provided with inner tube, the both ends of inner tube are fixedly connected to the corresponding side flange plate respectively, the both sides of the end of outer tube are all set up strip groove, the inner chamber of strip groove is provided with hoisting connecting device convenient for connecting lifting hook respectively,

[0008] The hoisting connecting device includes a connecting plate rotatably connected between each group of strip grooves by a rotating member, an upper portion of the connecting plate is provided with a hoisting hole, an inner cavity of the hoisting hole is slidably connected with a clamping block, and a top portion of the connecting plate is provided with a pushing member for pushing the clamping block downward to clamp the lifting hook.

[0009] Preferably, the rotating member includes a connecting column fixedly installed on the bottom of each group of connecting plates, a limiting hole is formed in the inner wall surface of the lower portion of the strip groove, and two connecting columns on the same side are slidably connected into the inner cavities of the limiting holes at corresponding positions.

[0010] Preferably, the pushing member includes a circular hole formed in the top portion of the connecting plate, a bearing is inlaid at the mouth of the circular hole, an inner hexagonal bolt is fixedly inserted into the inner cavity of the bearing, and the screw rod of the inner hexagonal bolt extends downward and is threaded through the clamping block on the corresponding side.

[0011] Preferably, the inner wall of the outer tube is fixedly connected with a plurality of groups of reinforcing ribs arranged in a ring array, and the gap between the outer tube and the inner tube is filled with a heat preservation layer.

[0012] Preferably, the outer side of the connecting plate is provided with an insertion hole, the inner cavity of the insertion hole is inserted with a fixing bolt, and the fixing bolt is threaded through the insertion hole on the corresponding side and is threadedly connected to the inner wall of the strip groove.

[0013] Preferably, the inner wall of the hoisting hole is provided with a guide groove, the inner cavities of two groups of guide grooves are slidably connected with guide blocks, and the guide blocks on the same side are fixedly connected to the corresponding side surfaces of the clamping blocks at corresponding positions.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The utility model discloses a hoisting connecting device and the setting of reinforcing rib, and two groups of lifting hooks are respectively passed through the hoisting hole on the surface of two groups of connecting plates of the same side, thereby facilitating the hoisting of the double hollow rod by the operator, and when the whole double hollow rod is lifted by the lifting hook, the weight of the double hollow rod and the shaking, pulling and other forces generated in the hoisting process all act on the outer tube, the reinforcing rib supports the outer tube and evenly disperses the forces to each part of the outer tube, effectively preventing the deformation and damage of the outer tube due to bearing too much force.

[0016] 2. The utility model discloses the setting of the pusher, rotates the inner hexagonal bolt, and along with the rotation of the inner hexagonal bolt, the clamping block moves down in the hoisting hole along the guide groove of both sides inner wall, and the operator can flexibly adjust the clamping force of the clamping block to the lifting hook according to the size and shape of the lifting hook and the actual hoisting weight requirement, can ensure that the clamping block tightly clamps the lifting hook, prevents the occurrence of unhooking accident, and when the lifting hook needs to be disassembled, the clamping block can be conveniently loosened.

[0017] 3. The utility model discloses the setting of the fixing bolt, and the fixing bolt is used for fixing the connecting plate on the inner wall of the strip groove, and when not needing hoisting operation, can effectively prevent the rotation of the connecting plate due to accidental shaking or collision. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of high-strength thermal insulation type double hollow rod with hoisting connecting device of the utility model;

[0019] Figure 2 It is the sectional structure schematic diagram of outer tube of the utility model;

[0020] Figure 3 It is the structure schematic diagram of connecting plate of the utility model;

[0021] Figure 4 It is the sectional structure schematic diagram of connecting plate of the utility model.

[0022] In the drawing:

[0023] 100, outer tube;101, strip groove;102, flange plate;103, fixing bolt;104, inner tube;105, thermal insulation layer;106, reinforcing rib;107, limiting hole;

[0024] 200, connecting plate;201, hoisting hole;202, clamping block;203, connecting column;204, bearing;205, inner hexagonal bolt;206, guide groove;207, plug-in hole;208, guide block;209, circular hole. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figures 1-4 The embodiment provides a high-strength thermal insulation type double hollow rod with a hoisting connecting device, which comprises an outer pipe 100, flange plates 102 are fixedly connected to both end portions of the outer pipe 100, an inner pipe 104 is arranged in the inner cavity of the outer pipe 100 and located between the two groups of flange plates 102, the two ends of the inner pipe 104 are fixedly connected to the corresponding side flange plates 102, strip-shaped grooves 101 are formed on both sides of the end portion of the outer pipe 100, hoisting connecting devices for conveniently connecting lifting hooks are arranged in the inner cavities of the strip-shaped grooves 101, a plurality of groups of reinforcing ribs 106 are fixedly connected to the inner wall of the outer pipe 100 and arranged in a ring array, and a thermal insulation layer 105 is filled in the gap between the outer pipe 100 and the inner pipe 104.

[0027] The hoisting connecting device comprises connecting plates 200 rotatably connected between each group of strip-shaped grooves 101 through rotating members, hoisting holes 201 are formed in the upper portions of the connecting plates 200, clamping blocks 202 are slidably connected in the inner cavities of the hoisting holes 201, and the top portions of the connecting plates 200 are provided with pushing members for pushing the clamping blocks 202 downward to clamp the lifting hooks. Through the arrangement of the hoisting connecting device and the reinforcing ribs 106, the two groups of lifting hooks are respectively passed through the hoisting holes 201 in the surfaces of the two groups of connecting plates 200 on the same side, so that the operator can conveniently hoist the double hollow rod. When the lifting hooks are used to hoist the entire double hollow rod, the weight of the double hollow rod and the shaking, pulling and other forces generated in the hoisting process all act on the outer pipe 100, the reinforcing ribs 106 support the outer pipe 100 and evenly disperse the forces to all parts of the outer pipe 100, thereby effectively preventing the outer pipe 100 from being deformed or damaged due to bearing excessive force.

[0028] The inner cavity of the inner pipe 104 is in communication with the inner cavity of the flange plate 102, and the top of one group of double hollow rods is threadedly connected to the inner cavity of the bottom flange plate 102 of the other group of double hollow rods.

[0029] It is worth noting that the thermal insulation layer 105 is one or a combination of ceramic hollow particles, polyurethane foam, rock wool, glass wool and the like.

[0030] Further, the rotating member includes connecting columns 203 fixedly installed on the bottom of each group of connecting plates 200 respectively, limit holes 107 are arranged on the inner wall surface of the lower part of both sides of the strip-shaped groove 101, and the two groups of connecting columns 203 on the same side are respectively and slidably connected into the inner cavities of the limit holes 107 at the corresponding positions. Through the arrangement of the rotating member, the connecting plate 200 can better adapt to the position and direction of the lifting hook, and the operator can conveniently hoist and transport the double hollow rods.

[0031] Further, the pushing member includes circular holes 209 arranged on the top of the connecting plate 200 respectively, the mouth of the circular hole 209 is inlaid with a bearing 204, the inner cavity of the bearing 204 is fixedly inserted with an internal hexagonal bolt 205, the screw rod of the internal hexagonal bolt 205 extends downward and is screwed through the clamping block 202 on the corresponding side, through the arrangement of the pushing member, the internal hexagonal bolt 205 is rotated, along with the rotation of the internal hexagonal bolt 205, the clamping block 202 moves downward along the guide groove 206 of the inner wall on both sides in the hoisting hole 201, the operator can flexibly adjust the clamping force of the clamping block 202 on the lifting hook according to the size and shape of the lifting hook and the actual hoisting weight requirement, which can ensure that the clamping block 202 tightly clamps the lifting hook and prevents the occurrence of unhooking accidents, and when the lifting hook needs to be disassembled, the clamping block 202 can be conveniently loosened.

[0032] Preferably, the middle part of the outer side of the connecting plate 200 is provided with a plug-in hole 207, the inner cavity of the plug-in hole 207 is inserted with a fixing bolt 103, the fixing bolt 103 penetrates through the plug-in hole 207 on the corresponding side and is screwed to the inner wall of the strip-shaped groove 101, through the arrangement of the fixing bolt 103, the fixing bolt 103 is used for fixing the connecting plate 200 on the inner wall of the strip-shaped groove 101, when the hoisting operation is not needed, the accidental shaking or collision of the connecting plate 200 can be effectively prevented.

[0033] It is worth mentioning that the inner wall of both sides of the hoisting hole 201 is provided with a guide groove 206, the inner cavities of the two groups of guide grooves 206 are slidably connected with guide blocks 208, the two groups of guide blocks 208 on the same side are respectively fixedly connected to the corresponding side surface of the clamping block 202 at the corresponding positions, through the arrangement of the guide groove 206 and the guide block 208, the guide groove 206 of the inner wall of both sides of the hoisting hole 201 cooperates with the guide block 208 on the clamping block 202 to provide accurate guidance for the clamping block 202 during the upward and downward movement, avoiding the deviation or inclination of the clamping block 202 during the movement.

[0034] Working principle;

[0035] When the double hollow rod needs to be hoisted and transported or installed to the corresponding position, first, the operator disassembles the fixing bolt 103 on the surface of the connecting plate 200, so that the connecting plate 200 can rotate between the strip-shaped grooves 101, and the connecting plate 200 is pulled upward respectively, so that the hoisting hole 201 is higher than the end of the outer tube 100, while the connecting plate 200 is pulled upward, the connecting column 203 on both sides of the connecting plate 200 moves along the limiting hole 107, and the connecting column 203 can rotate in the corresponding side limiting hole 107;

[0036] Then, the two groups of lifting hooks are respectively inserted through the two groups of hoisting holes 201 on the same side, then the worker starts the crane to transfer the double hollow rod, and when the entire double hollow rod is lifted by the lifting hooks, the weight of the double hollow rod and the shaking, pulling and other forces generated during the hoisting process all act on the outer tube 100, the reinforcing rib 106 supports the outer tube 100, and the forces are evenly distributed to each part of the outer tube 100, so that the deformation and damage of the outer tube 100 due to bearing excessive force are effectively prevented.

[0037] Meanwhile, the operator rotates the inner hexagonal bolt 205 in the top circular hole 209 of the connecting plate 200 by using a tool, the screw rod of the inner hexagonal bolt 205 is screwed downward through the clamping block 202, and as the inner hexagonal bolt 205 rotates, the clamping block 202 moves stably downward along the guide groove 206 on the two side walls in the hoisting hole 201, gradually approaches and tightly clamps the lifting hook, prevents the lifting hook from being accidentally unhooked during the hoisting process, and ensures the safety of hoisting.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength, heat-insulating double hollow pole with a hoisting connection device, characterized in that, The device includes an outer tube (100), both ends of which are fixedly connected to flanges (102). An inner tube (104) is provided in the inner cavity of the outer tube (100) and located between the two flanges (102). Both ends of the inner tube (104) are fixedly connected to the corresponding side flanges (102). A strip groove (101) is provided on both sides of the end of the outer tube (100). The inner cavity of the strip groove (101) is provided with a lifting connection device to facilitate the connection of a hook. The hoisting connection device includes a connecting plate (200) rotatably connected between each set of strip grooves (101) via a rotating component. Each connecting plate (200) has a hoisting hole (201) on its upper part. Each hoisting hole (201) has a clamping block (202) slidably connected to its inner cavity. Each connecting plate (200) has a pushing component on its top that pushes the clamping block (202) downward to clamp the hook.

2. A high-strength, heat-insulating double hollow pole with a hoisting connection device according to claim 1, characterized in that: The rotating component includes connecting columns (203) that are fixedly installed on the bottom of both sides of each connecting plate (200). Limiting holes (107) are opened on the inner wall surfaces of both sides of the lower part of the strip groove (101). The two sets of connecting columns (203) on the same side are slidably connected to the inner cavity of the limiting holes (107) at the corresponding positions.

3. A high-strength, heat-insulating double hollow pole with a hoisting connection device according to claim 1, characterized in that: The pusher includes circular holes (209) respectively opened on the top of the connecting plate (200). The opening of the circular hole (209) is inlaid with a bearing (204). The inner cavity of the bearing (204) is fixedly inserted with an internal hexagon bolt (205). The screw of the internal hexagon bolt (205) extends downward and the thread passes through the clamping block (202) on the corresponding side.

4. A high-strength, heat-insulating double hollow pole with a hoisting connection device according to claim 1, characterized in that: The inner wall of the outer tube (100) is fixedly connected with several sets of reinforcing ribs (106) arranged in a ring array, and the gap between the outer tube (100) and the inner tube (104) is filled with a heat insulation layer (105).

5. A high-strength, heat-insulating double hollow pole with a hoisting connection device according to claim 1, characterized in that: The connecting plate (200) has a plug hole (207) in the middle of its outer side. A fixing bolt (103) is inserted into the inner cavity of the plug hole (207). The fixing bolt (103) passes through the corresponding side plug hole (207) and is threaded to the inner wall of the strip groove (101).

6. A high-strength, heat-insulating double hollow pole with a hoisting connection device according to claim 5, characterized in that: The inner walls on both sides of the hoisting hole (201) are provided with guide grooves (206), and the inner cavities of the two sets of guide grooves (206) are slidably connected with guide blocks (208). The two sets of guide blocks (208) on the same side are respectively fixedly connected to the corresponding side surface of the corresponding clamping block (202).

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