CN217925446U - Portable hydraulic door opener - Google Patents
Portable hydraulic door opener Download PDFInfo
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- CN217925446U CN217925446U CN202221074187.6U CN202221074187U CN217925446U CN 217925446 U CN217925446 U CN 217925446U CN 202221074187 U CN202221074187 U CN 202221074187U CN 217925446 U CN217925446 U CN 217925446U
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- upper cover
- piston rod
- spring
- oil cylinder
- oil
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Abstract
The utility model provides a portable hydraulic pressure door opener, it includes hydro-cylinder, upper cover, piston assembly, shore seat and the base that cracks. The upper cover covers and is connected to one end of the oil cylinder, the peripheral wall of the upper cover is provided with an oil inlet and an oil duct which are connected with an external oil pump, and the end face of the upper cover is provided with a plurality of arc-shaped top supporting concaves. Piston assembly includes piston rod, reset spring and spring top connecting piece, and the piston rod sets up in the hydro-cylinder, and the bottom of hydro-cylinder is extended to the bottom of piston rod, has the axial mounting groove of opening towards upper cover one side on the piston rod, and reset spring's bottom is connected in the piston rod, and the sealed lid of spring top connecting piece fits axial mounting groove opening and connects reset spring's top and upper cover. The jacking seat is fixedly connected to the bottom of the oil cylinder and goes up and down along with the oil cylinder, and the jacking seat comprises two wedge-shaped clamping jaws. The slotting base comprises a connecting part and a slotting part, the connecting part is fixedly connected to the bottom of the piston rod, and the slotting part is wedge-shaped; in the reset state, the slotted part is positioned between the two wedge-shaped clamping jaws.
Description
Technical Field
The utility model relates to a hydraulic pressure is broken the field of tearing open, and in particular to portable hydraulic pressure door opener.
Background
The hydraulic door opener is commonly used in the field of fire rescue, is particularly suitable for locking a door to be opened in the fire rescue process of houses, hotels and commercial buildings, and is a common tool for fire rescue. The traditional door opener only has the function of slotting, and other tools are required to pry the door after slotting, so that the door opener is inconvenient to use and long in door opening time. At present, a hydraulic door opener integrating slotting and top bracing is also arranged on the market, the top bracing is realized by ejecting a piston rod, but the reset structure of the piston rod of the door opener is complex, so that the problems of large volume, light weight, poor reset stability and the like of the door opener are caused.
In addition, the existing hydraulic door opener still has the problem of single station, can only operate by using the same station, is limited in jacking range and single in force application point, and is difficult to meet the door opening operation in a complex environment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art's not enough, provide a portable hydraulic pressure door opener that simple structure and stability reset are high.
In order to achieve the above object, the utility model provides a portable hydraulic pressure door opener, it includes hydro-cylinder, upper cover, piston assembly, shore seat and the base that cracks. The upper cover is covered and connected with one end of the oil cylinder, the peripheral wall of the upper cover is provided with an oil inlet and an oil duct which are connected with an external oil pump, and the end surface of the upper cover is provided with a plurality of arc-shaped supporting concaves. Piston assembly includes piston rod, reset spring and spring top connecting piece, and the piston rod sets up in the hydro-cylinder, and the bottom of hydro-cylinder is extended to the bottom of piston rod, has the axial mounting groove of opening towards upper cover one side on the piston rod, and reset spring's bottom is connected in the piston rod, and the sealed lid of spring top connecting piece fits axial mounting groove opening and connects reset spring's top and upper cover. The jacking seat is fixedly connected to the bottom of the oil cylinder and goes up and down along with the oil cylinder, and the jacking seat comprises two wedge-shaped clamping jaws. The slotting base comprises a connecting part and a slotting part, the connecting part is fixedly connected to the bottom of the piston rod, and the slotting part is wedge-shaped; in the reset state, the slotting part is positioned between the two wedge-shaped clamping jaws.
According to the utility model discloses an embodiment, spring top connecting piece includes spring mounting and fastener, and spring mounting seals the axial mounting groove opening of piston rod and connects reset spring's top, and spring mounting and upper cover are connected to the fastener.
According to the utility model discloses an embodiment, the spring fixed part includes sealing part and spring coupling portion, and the sealing part seals the axial mounting groove opening, and spring coupling portion has the screw thread of connecting the reset spring front end in stretching into the axial mounting inslot and on spring coupling portion's the perisporium.
According to the utility model discloses an embodiment, the detachable overcoat of upper cover is in the front end of hydro-cylinder, and the fastener passes through seal gasket to be connected in the upper cover.
According to an embodiment of the utility model, the portable hydraulic door opener further comprises an inner sealing ring and an outer sealing ring, the inner sealing ring is connected with the piston rod and the oil cylinder in a sealing way and divides the oil cylinder into an oil storage cavity at the front end of the oil cylinder and an oil-free cavity at the rear end, and the oil storage cavity is communicated with an oil duct of the upper cover; the outer sealing ring is connected with the oil cylinder and the upper cover in a sealing mode.
According to the utility model discloses an embodiment, the top props the seat and still including being located two wedge jack catch rear sides and being used for assembling the handle seat of handle, cracks to have the supporting seat that corresponds with the handle seat on the base.
According to an embodiment of the present invention, the bottom surface of the handle holder and/or the top surface of the support base have/has an arc-shaped groove.
According to the utility model discloses an embodiment has the handle mounting hole that is close to connecting portion in the division of the base that cracks, and the handle is detachable to be connected in the handle mounting hole in division.
To sum up, the utility model provides a have an axial mounting groove among the piston assembly of portable hydraulic pressure door opener on the piston rod, reset spring sets up in the axial mounting groove, and the sealed axial mounting groove of spring top connecting piece realizes the connection of spring top and upper cover. The installation of the return spring based on the axial length of the piston rod greatly reduces the assembly space. Furthermore, the arrangement of the connecting piece at the top end of the spring realizes the sealing assembly of the spring on one hand, and the reset spring is not contacted with hydraulic oil, so that the reset stability and the service life of the spring are greatly improved; on the other hand, the connecting piece at the top end of the spring also realizes the connection between the return spring and the upper cover, thereby further simplifying the structure of the piston assembly.
In addition, in the portable hydraulic pressure door opener that this embodiment provided, under the shore state, the hydro-cylinder upward movement is all followed to upper cover and shore seat, and shore seat provides short distance shore station, and a plurality of arcs shore the recess on the upper cover terminal surface then realized another shore station of long distance, realize the multistation operation, use more in a flexible way.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural view of a portable hydraulic door opener according to an embodiment of the present invention in a reset state.
Fig. 2 is a schematic cross-sectional view of fig. 1.
Fig. 3 is an enlarged schematic view of a in fig. 2.
Fig. 4 is an enlarged schematic view of fig. 2 at B.
Fig. 5 is a schematic structural view of the spring fixing member in fig. 3.
Fig. 6 is a schematic structural view of fig. 1 in a shoring state.
Fig. 7 is a schematic structural view of the upper cover in fig. 1.
Fig. 8 is a schematic structural view of the top support base in fig. 1.
Fig. 9 is a schematic view of the slit base of fig. 1.
Detailed Description
As shown in fig. 1 to fig. 9, the portable hydraulic door opener according to the present embodiment includes an oil cylinder 1, an upper cover 2, a piston assembly 3, a top support seat 4, and a slotted base 5. The upper cover 2 is covered and connected with one end of the oil cylinder 1, the peripheral wall of the upper cover 2 is provided with an oil inlet 21 and an oil passage 22 which are connected with an external oil pump, and the end surface of the upper cover 2 is provided with a plurality of arc-shaped top support recesses 23. Piston assembly 3 includes piston rod 31, reset spring 32 and spring top connecting piece 33, and piston rod 31 sets up in hydro-cylinder 2, and the bottom of hydro-cylinder 1 is extended to the bottom of piston rod 31, has the axial mounting groove 311 of opening towards upper cover one side on the piston rod 31, and the bottom of reset spring 32 is connected in piston rod 31, and spring top connecting piece 33 seals the opening of covering in axial mounting groove 311 and connects reset spring 32's top and upper cover 2. The jacking seat 4 is fixedly connected to the bottom of the oil cylinder 1 and ascends and descends along with the oil cylinder 1, and the jacking seat 4 comprises two wedge-shaped clamping jaws 41. The slotted base 5 comprises a connecting part 51 and a slotted part 52, the connecting part 51 is fixedly connected to the bottom of the piston rod 31, and the slotted part 52 is wedge-shaped; in the reset state, the slit portion 52 is located between the two wedge claws 41.
As shown in fig. 2 to 4, in the present embodiment, the spring top end connecting member 33 includes a spring fixing member 331 and a fastener 332, the spring fixing member 331 seals the opening of the axial mounting groove 211 of the piston rod 21 and connects the top end of the return spring 32, and the fastener 332 connects the spring fixing member 331 and the upper cover 2. Specifically, the spring fixing portion 331 includes a sealing portion 3311 and a spring connecting portion 3312, the sealing portion 3312 seals an opening of the axial mounting groove 311, the spring connecting portion 3312 extends into the axial mounting groove 311, and a peripheral wall of the spring connecting portion 3312 has a thread 3313 connected to a front end of the return spring 32. Preferably, the spring fixing member 331 is a bolt, a base of the bolt forms the sealing portion 3312, a shank of the bolt forms the spring connecting portion 3312, and the return spring is threadedly coupled to an external thread on the shank of the bolt. The fastener 332 is a screw for connecting the bolt base and the upper cover 2. However, the present invention is not limited to this.
The setting of sealing 3312 has realized the seal installation of reset spring 32 in axial mounting groove 311 on spring fixed part 331, and fluid in the hydro-cylinder 1 can not cause any influence to reset spring 32, and reset spring 32's deformation is to following upper cover 2 and hydro-cylinder 1 and change, and stability that resets is good and longe-lived. The threads 3313 on the spring connecting portion 3312 provide for a stable connection of the front end of the return spring. The structure of the piston assembly 3 is greatly simplified by utilizing the axial space of the piston rod 31 and integrating the multiple functions of the spring fixing part 331, so that the hydraulic door opener is miniaturized, is convenient to use and carry, and can be directly placed in a backpack for carrying. Correspondingly, in the present embodiment, the bottom end of the return spring 32 is connected to the bottom of the piston rod through a spring bottom end connector 34. The spring bottom end connector 34 comprises a bottom end bolt 341 inside the piston rod and a bottom end screw 342 fastening the bottom end bolt 341. Likewise, the bottom end of the return spring is threaded onto the external threads on the bottom bolt 341.
In the present embodiment, the hydraulic oil enters from the oil inlet 21 in the peripheral wall of the upper cover 2 and enters into the cylinder 1 through the oil passage 22. The upper cover 2 is detachably sleeved on the front end of the oil cylinder 1, and the fastening piece 332 is connected to the upper cover 3 through a sealing gasket 333 to avoid hydraulic leakage.
As shown in fig. 2, in this embodiment, the portable hydraulic door opener further includes an inner seal ring 6 and an outer seal ring 7, the inner seal ring 6 is connected to the piston rod 31 and the oil cylinder 1 in a sealing manner and divides the oil cylinder 1 into an oil storage chamber 11 located at the front end of the oil cylinder and an oil-free chamber 12 located at the rear end, and the oil storage chamber 11 is communicated with the oil passage 22 of the upper cover; the outer sealing ring 7 is connected with the oil cylinder 1 and the upper cover 2. The setting of interior sealing washer 6 makes the hydraulic oil that actuating cylinder 1, upper cover 2 and top prop seat 4 go up and down only get into oil storage chamber 11 in, does not have any fluid in oil chamber 12, and the assembly of top prop seat 4 and the base 5 that cracks need not to consider sealed effect again, has not only avoided revealing of fluid, has also simplified the assembly of operation part simultaneously, has avoided the leakage problem because of the operation part motion arouses.
In this embodiment, the top support base 4 further includes a handle base 42 located behind the two wedge-shaped claws 41 and used for assembling the handle 8, and the slit base 5 has a support base 53 corresponding to the handle base 42. During the shoring operation, the handle 8 is attached to the handle base 42 for easy handling. In the present embodiment, the slit part 52 of the slit base 4 has a handle mounting hole 521 near the connecting part 51. During the slitting operation, the handle 8 may be detachably attached to the handle attachment hole 521 at the slit portion so as to apply a better force to the slit portion 52.
In order to reduce the resistance to separation between the handle seat 42 and the support seat 53 during the top bracing, in the present embodiment, the bottom surface of the handle seat 42 and the top surface of the support seat 53 are both provided with arc-shaped grooves 100.
In this embodiment, the wedge-shaped claws 41 have anti-slip threads on the upper surface thereof, and the slit base 5 also has ground-catching saw-tooth anti-slip threads on the bottom thereof.
In the portable hydraulic door opener according to the present embodiment, the slit portion 52 of the slit base 5 is inserted into the slit to perform the slitting operation during the door opening operation. Then, the hydraulic oil is input from the oil inlet 21 on the upper cover 2 and enters the oil storage chamber 11 of the oil cylinder 1 through the oil passage 22. The oil pressure in the oil storage cavity 11 is increased and the oil cylinder 1, the upper cover 2 and the jacking seat 4 are jacked up; the upper cover 2 stretches the return spring 32 through the spring top end connecting piece 33, and the top support seat 4 positioned in the door gap pushes the door open. Then, the oil storage chamber 11 is drained by an external oil pump, and the upper cover 2, the oil cylinder 1 and the jacking seat 4 gradually descend under the action of the tension of the return spring 32, so that the automatic return of the oil cylinder 1 is realized.
Because the jacking seat 4 is arranged at the bottom of the oil cylinder, the jacking distance provided by the two wedge-shaped clamping jaws 42 is limited. In this embodiment, a plurality of curved shoring grooves 23 on the top of the upper cover 2 provide a long-distance shoring, thereby greatly facilitating rescue operation.
To sum up, the utility model provides a have an axial mounting groove among the piston assembly of portable hydraulic pressure door opener on the piston rod, reset spring sets up in the axial mounting groove, and the sealed axial mounting groove of spring top connecting piece realizes the connection of spring top and upper cover. The installation of the return spring is realized based on the axial length of the piston rod, so that the assembly space is greatly reduced. Furthermore, the arrangement of the connecting piece at the top end of the spring realizes the sealing assembly of the spring on one hand, and the reset spring is not contacted with hydraulic oil, so that the reset stability and the service life of the spring are greatly improved; on the other hand, the connecting piece at the top end of the spring also realizes the connection between the return spring and the upper cover, thereby further simplifying the structure of the piston assembly.
In addition, in the portable hydraulic pressure door opener that this embodiment provided, under the shore state, the hydro-cylinder upward movement is all followed to upper cover and shore seat, and shore seat provides short distance shore station, and a plurality of arcs shore the recess on the upper cover terminal surface then realized another shore station of long distance, realize the multistation operation, use more in a flexible way.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of other modifications and variations without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A portable hydraulic door opener, comprising:
an oil cylinder;
the oil cylinder is connected with the oil cylinder in a covering mode, the peripheral wall of the upper cover is provided with an oil inlet and an oil duct which are connected with an external oil pump, and the end face of the upper cover is provided with a plurality of arc-shaped jacking grooves;
the piston assembly comprises a piston rod, a return spring and a spring top end connecting piece, wherein the piston rod is arranged in the oil cylinder, the bottom end of the piston rod extends out of the bottom of the oil cylinder, an axial mounting groove with an opening facing to one side of the upper cover is formed in the piston rod, the bottom end of the return spring is connected to the piston rod, and the spring top end connecting piece is hermetically covered on the opening of the axial mounting groove and is connected with the top end of the return spring and the upper cover;
the jacking seat is fixedly connected to the bottom of the oil cylinder and ascends and descends along with the oil cylinder, and the jacking seat comprises two wedge-shaped clamping jaws;
the slotting base comprises a connecting part and a slotting part, the connecting part is fixedly connected to the bottom of the piston rod, and the slotting part is wedge-shaped; in the reset state, the slotted part is positioned between the two wedge-shaped clamping jaws.
2. The portable hydraulic door opener according to claim 1, wherein the spring top end connector comprises a spring fixing member sealing the axial mounting groove opening of the piston rod and connecting the top end of the return spring, and a fastener connecting the spring fixing member and the upper cover.
3. The portable hydraulic door opener according to claim 2, wherein the spring fixing portion includes a sealing portion which seals the opening of the axial mounting groove and a spring connecting portion which extends into the axial mounting groove and has a thread on a peripheral wall thereof to which a front end of the return spring is connected.
4. The portable hydraulic door opener according to claim 2, wherein the upper cover is detachably sleeved on the front end of the oil cylinder, and the fastening member is connected to the upper cover through a sealing gasket.
5. The portable hydraulic door opener according to claim 1, further comprising an inner seal ring and an outer seal ring, wherein the inner seal ring is hermetically connected with the piston rod and the oil cylinder and divides the oil cylinder into an oil storage cavity at the front end of the oil cylinder and an oil-free cavity at the rear end, and the oil storage cavity is communicated with an oil passage of the upper cover; the outer sealing ring is connected with the oil cylinder and the upper cover in a sealing mode.
6. The portable hydraulic door opener according to claim 1, wherein the jacking seat further comprises a handle seat for mounting a handle at a rear side of the two wedge-shaped jaws, and the slotted base has a support seat corresponding to the handle seat.
7. The portable hydraulic door opener according to claim 6, wherein the bottom surface of the handle seat and/or the top surface of the support seat has an arc-shaped groove.
8. The portable hydraulic door opener according to claim 1 or 6, wherein the slit portion of the slit base has a handle mounting hole near the coupling portion, and the handle is detachably coupled to the handle mounting hole of the slit portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074187.6U CN217925446U (en) | 2022-04-29 | 2022-04-29 | Portable hydraulic door opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221074187.6U CN217925446U (en) | 2022-04-29 | 2022-04-29 | Portable hydraulic door opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217925446U true CN217925446U (en) | 2022-11-29 |
Family
ID=84175751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221074187.6U Active CN217925446U (en) | 2022-04-29 | 2022-04-29 | Portable hydraulic door opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217925446U (en) |
-
2022
- 2022-04-29 CN CN202221074187.6U patent/CN217925446U/en active Active
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