CN216576509U - Automatic reset hydraulic stretching device with good return effect - Google Patents
Automatic reset hydraulic stretching device with good return effect Download PDFInfo
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- CN216576509U CN216576509U CN202122961244.4U CN202122961244U CN216576509U CN 216576509 U CN216576509 U CN 216576509U CN 202122961244 U CN202122961244 U CN 202122961244U CN 216576509 U CN216576509 U CN 216576509U
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Abstract
The utility model discloses an automatic reset hydraulic stretching device with a good recovery effect, which comprises a bottom plate, wherein a cylinder body is fixedly connected to the top surface of the bottom plate, a piston is slidably connected to the inner wall of the cylinder body, through holes are formed in the top surface and the bottom surface of the piston in a penetrating manner, a piston rod is fixedly connected to the top surface of the piston, a sealing ring is fixedly connected to the top surface of the cylinder body, the inner wall of the sealing ring is slidably connected with the surface of the piston rod, a sealing element is fixedly connected to the top surface of the sealing ring, and the inner wall of the sealing element is slidably connected with the surface of the piston rod. Drive the piston rod through the roof and promote the piston and extrude hydraulic oil for hydraulic oil gets into the piston top through the through-hole, can reset, realized being convenient for carry out the target that resets hydraulic stretching device through the automatic re-setting structure, avoided current hydraulic stretching device mostly not to have the automatic re-setting structure to make and need artifical manual the resetting, make hydraulic stretching device use more convenient, more nimble.
Description
Technical Field
The utility model relates to the technical field of hydraulic stretchers, in particular to an automatic reset hydraulic stretching device with a good resetting effect.
Background
The hydraulic bolt tensioner is a globally advanced bolt pre-tightening and disassembling tool, is widely used for pre-tightening large-diameter bolts, and has the advantages of simple product operation, convenience in use, high safety and the like. Practice proves that the hydraulic stretcher has small damage to equipment, the stress of the connecting assembly is uniform, and the reliability of bolt connection is high.
Most of the existing hydraulic stretching devices do not have an automatic resetting structure, need manual resetting, and are difficult to reset the hydraulic stretching devices through the automatic resetting structure, so that the hydraulic stretching devices are inconvenient and inflexible to use.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides an automatic reset hydraulic stretching device with good recovery effect, which is used for solving the problems in the background technology.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an automatic reset hydraulic stretching device with good return effect comprises a bottom plate, wherein a cylinder body is fixedly connected to the top surface of the bottom plate, a piston is slidably connected to the inner wall of the cylinder body, through holes are formed in the top surface and the bottom surface of the piston in a penetrating manner, a piston rod is fixedly connected to the top surface of the piston, a sealing ring is fixedly connected to the top surface of the cylinder body, the inner wall of the sealing ring is slidably connected with the surface of the piston rod, a sealing element is fixedly connected to the top surface of the sealing ring, the inner wall of the sealing element is slidably connected with the surface of the piston rod, a top plate is fixedly connected to the top surface of the piston rod, a fixing plate is fixedly connected to the top surface of the top plate, fixing holes are formed in the left side and the right side of the fixing plate in a penetrating manner, a supporting sleeve is fixedly connected to the top surface of the bottom plate, a reset spring is fixedly connected to the bottom surface of the sliding plate, and one end, away from the reset spring, is fixedly connected with the supporting sleeve, the sliding plate is characterized in that the top surface of the sliding plate is fixedly connected with a sliding column, the sliding column is fixedly connected with the top plate, the top surface of the supporting sleeve is fixedly connected with a limiting ring, and the inner wall of the limiting ring is connected with the surface of the sliding column in a sliding mode.
Preferably, the number of the cylinder bodies, the pistons and the piston rods is two, the two cylinder bodies, the two pistons and the two piston rods are symmetrically arranged by taking the vertical center line of the top surface of the bottom plate as a symmetry axis, and hydraulic oil is arranged in the cylinder bodies.
Preferably, the piston is of a disc-shaped structure and is made of a metal material.
Preferably, the piston rod and the sliding column are both in cylindrical structures and are made of metal materials.
Preferably, the limiting ring is of a circular ring-shaped structure and is made of alloy materials.
Preferably, the number of the through holes is multiple, and the through holes are all located on the surface of the piston.
Compared with the prior art, the utility model has the beneficial effects that: according to the automatic-resetting hydraulic stretching device with the good resetting effect, the top plate is pulled upwards to drive the piston rod piston to extrude hydraulic oil, so that the hydraulic oil enters the position below the piston through the through hole, meanwhile, the sliding column and the sliding plate are driven to stretch the resetting spring, when the resetting is needed, the sliding plate and the sliding column are driven to move downwards through the resilience effect of the resetting spring, the piston rod is driven through the top plate to push the piston to extrude the hydraulic oil, so that the hydraulic oil enters the position above the piston through the through hole, and the resetting can be carried out; the hydraulic stretching device has the advantages that the goal of conveniently resetting the hydraulic stretching device through the automatic resetting structure is realized, the problem that most of the existing hydraulic stretching devices do not have the automatic resetting structure so that manual resetting is needed is avoided, and the hydraulic stretching device is more convenient and more flexible to use.
Drawings
FIG. 1 is an isometric view of a structure of the present invention;
FIG. 2 is a front sectional view of a partial structure of the present invention;
FIG. 3 is a front cross-sectional view of another partial structure of the present invention.
In the figure: the piston type hydraulic cylinder comprises a base plate 1, a cylinder body 2, a piston 3, a through hole 4, a piston rod 5, a sealing ring 6, a sealing element 7, a top plate 8, a support sleeve 9, a sliding plate 10, a return spring 11, a sliding column 12, a limiting ring 13, a fixing plate 14 and a fixing hole 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an automatic reset hydraulic stretching device with good return effect comprises a bottom plate 1, wherein the top surface of the bottom plate 1 is fixedly connected with two cylinder bodies 2, the number of the cylinder bodies 2, the number of pistons 3 and the number of piston rods 5 are two, the two cylinder bodies 2, the two pistons 3 and the two piston rods 5 are symmetrically arranged by taking the vertical center line of the top surface of the bottom plate 1 as a symmetry axis, hydraulic oil is arranged in the cylinder bodies 2, so that the hydraulic stretching device is more stable and is not easy to incline when stretched, the hydraulic oil can be arranged to slowly reset, the piston 3 is connected to the inner wall of the cylinder body 2 in a sliding manner, the piston 3 is in a disc-shaped structure, the piston 3 is made of metal materials, so that the piston 3 is more durable and is not easy to deform, through holes 4 are formed in the top surface and the bottom surface of the piston 3 in a penetrating manner, the number of the through holes 4 is multiple, and the through holes 4 are all positioned on the surface of the piston 3, the top surface of the piston 3 is fixedly connected with a piston rod 5, the piston rod 5 and a sliding column 12 are both in cylindrical structures, and the piston rod 5 and the sliding column 12 are both made of metal materials, so that the piston rod 5 and the sliding column 12 are more durable and are not easy to deform and break, the top surface of the cylinder body 2 is fixedly connected with a sealing ring 6, the inner wall of the sealing ring 6 is in surface sliding connection with the piston rod 5, the top surface of the sealing ring 6 is fixedly connected with a sealing element 7, the inner wall of the sealing element 7 is in surface sliding connection with the piston rod 5, the top surface of the piston rod 5 is fixedly connected with a top plate 8, the top surface of the top plate 8 is fixedly connected with a fixed plate 14, the left side and the right side of the fixed plate 14 are provided with a fixed hole 15 in a penetrating way, the top surface of the bottom plate 1 is fixedly connected with a supporting sleeve 9, the inner wall of the supporting sleeve 9 is in a sliding connection with a sliding plate 10, the bottom surface of the sliding plate 10 is fixedly connected with a reset spring 11, and one end of the reset spring 11, which is far away from the sliding plate 10, is fixedly connected with the supporting sleeve 9, the top surface of the sliding plate 10 is fixedly connected with a sliding column 12, the sliding column 12 is fixedly connected with the top plate 8, the top surface of the support sleeve 9 is fixedly connected with a limiting ring 13, the limiting ring 13 is of a circular ring structure, the limiting ring 13 is made of alloy materials, the limiting ring 10 is convenient to limit, the sliding plate 10 is prevented from sliding out of the support sleeve 9, the inner wall of the limiting ring 13 is slidably connected with the surface of the sliding column 12, the automatic resetting hydraulic stretching device with good resetting effect is used for upwards pulling the top plate 8 to drive the piston rod 5 and the piston 3 to extrude hydraulic oil, so that the hydraulic oil enters the position below the piston 3 through the through hole 4, simultaneously, the sliding column 12 and the sliding plate 10 are driven to stretch the resetting spring 11, when resetting is needed, the sliding plate 10 and the sliding column 12 are driven to downwards move through the rebounding effect of the resetting spring 11, the piston rod 5 is driven by the top plate 8 to push the piston 3 to extrude the hydraulic oil, make hydraulic oil pass through-hole 4 and get into 3 tops of piston, can reset, realized being convenient for carry out the target that resets with hydraulic stretching device through the automatic re-setting structure, avoided current hydraulic stretching device to have mostly not the automatic re-setting structure to make and need artifical manual the resetting for hydraulic stretching device uses more conveniently, and is more nimble.
When in use: pulling roof 8, drive piston rod 5 and remove, drive piston 3 through piston rod 5 and upwards slide in cylinder body 2, extrude the hydraulic oil of piston 3 top surface, make hydraulic oil pass through-hole 4 and get into piston 3 below, and simultaneously, drive traveller 12 and upwards remove, drive sliding plate 10 and upwards slide in support sleeve 9, stretch reset spring 11 through sliding plate 10, when needs reset, rebound effect through reset spring 11 drives sliding plate 10 and downwards slides in support sleeve 9, drive traveller 12 and downwards move, drive piston rod 5 through roof 8 and promote piston 3 and downwards move, extrude the hydraulic oil of piston 3 below, make hydraulic oil pass through-hole 4 and get into piston 3 top, can reset.
To sum up, the automatic resetting hydraulic stretching device with good resetting effect pulls the top plate 8 upwards to drive the piston rod 5 and the piston 3 to extrude hydraulic oil, so that the hydraulic oil enters the position below the piston 3 through the through hole 4, meanwhile, the sliding column 12 and the sliding plate 10 are driven to stretch the reset spring 11, when the resetting is needed, the sliding plate 10 and the sliding column 12 are driven to move downwards through the rebound action of the reset spring 11, the piston rod 5 is driven by the top plate 8 to push the piston 3 to extrude the hydraulic oil, so that the hydraulic oil enters the position above the piston 3 through the through hole 4, the resetting can be carried out, the aim of conveniently resetting the hydraulic stretching device through an automatic resetting structure is fulfilled, the problem that the traditional hydraulic stretching device mostly does not have an automatic resetting structure so that the resetting needs to be carried out manually is avoided, the hydraulic stretching device is more convenient and more flexible to use, for solving the problems set forth in the above-mentioned background art.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The automatic reset hydraulic stretching device with good reversion effect comprises a bottom plate (1) and is characterized in that a cylinder body (2) is fixedly connected to the top surface of the bottom plate (1), a piston (3) is slidably connected to the inner wall of the cylinder body (2), a through hole (4) is formed in the top surface and the bottom surface of the piston (3) in a penetrating mode, a piston rod (5) is fixedly connected to the top surface of the piston (3), a sealing ring (6) is fixedly connected to the top surface of the cylinder body (2), the inner wall of the sealing ring (6) is slidably connected with the surface of the piston rod (5), a sealing element (7) is fixedly connected to the top surface of the sealing ring (6), the inner wall of the sealing element (7) is slidably connected with the surface of the piston rod (5), a top plate (8) is fixedly connected with a top plate (14), and a fixing hole (15) is formed in the left side and the right side of the fixing plate (14) in a penetrating mode, the improved structure of the sliding plate is characterized in that a supporting sleeve (9) is fixedly connected to the top surface of the base plate (1), a sliding plate (10) is slidably connected to the inner wall of the supporting sleeve (9), a reset spring (11) is fixedly connected to the bottom surface of the sliding plate (10), one end, far away from the sliding plate (10), of the reset spring (11) is fixedly connected with the supporting sleeve (9), a sliding column (12) is fixedly connected to the top surface of the sliding plate (10), the sliding column (12) is fixedly connected with the top plate (8), a limiting ring (13) is fixedly connected to the top surface of the supporting sleeve (9), and the inner wall of the limiting ring (13) is slidably connected with the surface of the sliding column (12).
2. The automatic resetting hydraulic stretching device with good resetting effect according to claim 1, wherein the number of the cylinder bodies (2), the pistons (3) and the piston rods (5) is two, the two cylinder bodies (2), the two pistons (3) and the two piston rods (5) are symmetrically arranged by taking a vertical central line of the top surface of the bottom plate (1) as a symmetry axis, and hydraulic oil is arranged in the cylinder bodies (2).
3. The automatic resetting hydraulic stretching device with good resetting effect as claimed in claim 1, wherein the piston (3) is in a disc-shaped structure, and the piston (3) is made of metal.
4. The automatic resetting hydraulic stretching device with good resetting effect according to claim 1, wherein the piston rod (5) and the sliding column (12) are both in a cylindrical structure, and the piston rod (5) and the sliding column (12) are both made of metal materials.
5. The automatic resetting hydraulic stretching device with good resetting effect according to claim 1, wherein the limiting ring (13) is of a circular ring structure, and the limiting ring (13) is made of alloy material.
6. The automatic resetting hydraulic stretching device with good resetting effect of claim 1, wherein the number of the through holes (4) is multiple, and the through holes (4) are all positioned on the surface of the piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961244.4U CN216576509U (en) | 2021-11-30 | 2021-11-30 | Automatic reset hydraulic stretching device with good return effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961244.4U CN216576509U (en) | 2021-11-30 | 2021-11-30 | Automatic reset hydraulic stretching device with good return effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216576509U true CN216576509U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122961244.4U Active CN216576509U (en) | 2021-11-30 | 2021-11-30 | Automatic reset hydraulic stretching device with good return effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216576509U (en) |
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2021
- 2021-11-30 CN CN202122961244.4U patent/CN216576509U/en active Active
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