CN213648740U - Hydraulic tool with adjustable limiting device - Google Patents

Abstract

The utility model belongs to the technical field of hydraulic means, concretely relates to hydraulic means with adjustable stop device, the power distribution box comprises a cylinder body, portable thrust unit that is provided with in the cylinder body, slidable is provided with the locating part that is used for restricting the thrust unit removal in the cylinder body, installs mobilizable mounting in the locating part, adjusts the mounting and makes its joint with the position of fixed locating part between cylinder body and locating part, the utility model discloses an adjust the position of locating part, can change thrust unit's removal stroke to be suitable for the crimping of unidimensional pipe fitting, after the position of removing the locating part, make the locating part joint between cylinder body and locating part through adjusting the mounting, thereby the position of fixed locating part makes thrust unit's removal stroke shorten, when crimping small-size pipe fitting, work efficiency is higher.

Description

Hydraulic tool with adjustable limiting device

Technical Field

The utility model relates to a hydraulic tool technical field refers in particular to a hydraulic tool with adjustable stop device.

Background

The ring-pressing type connection is a pipeline connection mode that a special sealing ring, a pipe fitting and a pipe are extruded into a whole by using a special tool, an O-shaped sealing ring is arranged on the pipe fitting, a bellmouth of the ring-pressing type pipe fitting is inserted, and the special tool is used for applying pressure from the outside along the circumferential direction of the bellmouth, so that the bellmouth and the pipe are sunken and deformed together, and a sealing section of the bellmouth is compressed, and the pipe fitting is fastened and sealed.

The charging hydraulic crimping pliers for clamping and pressing pipe fittings disclosed by Chinese utility model CN012118893 consists of an opening jaw head, a middle piston, a piston rod transmission part and a hydraulic and motor driving part at the rear part, wherein, screw positioning connecting pins, a central synchronous roller and a connecting plate are arranged at two sides of the opening jaw head, a pinch roller and a pinch roller bracket are arranged at the rear of the connecting plate, the pinch roller bracket is fixedly connected with the piston rod of the middle piston, a reset spring is sleeved on the piston rod, a hydraulic cylinder main body is arranged outside the piston, a check valve is arranged near the piston end in the hydraulic cylinder, a plunger is transversely arranged communicated with an oil cavity of the check valve, a return spring is sleeved at one end of the plunger, a cam ejector rod at the other end of the plunger is connected with a cam on a motor shaft, a sealing shell is arranged outside the cam and fixedly connected with the motor shaft, the check valve is vertically arranged, the one-way output port is connected with the plunger oil cavity to form a one-way oil flow passage, an overflow valve is arranged between the one-way valve and the plunger and is perpendicular to the plunger, an overflow valve cone is arranged in the overflow valve, and all the components are assembled into a whole.

In the actual operation process, firstly, the jaw is opened, then the pipe fitting is placed in, the piston moves to push the sliding block to move after the starting button is opened, and the scissors pincers are driven to rotate through the lever, so that the pressure is applied to the pipe fitting, and the crimping is completed.

When the small-size pipe fitting is blocked and pressed, the piston only needs to move a small section of stroke, namely the blocking and pressing operation on the pipe fitting can be realized, but because the stroke of the piston cannot be adjusted, the stroke of the piston moving is always the same no matter whether the small-size pipe fitting or the large-size pipe fitting is blocked and pressed, and the working efficiency is low.

Disclosure of Invention

The utility model aims at providing a hydraulic tool with adjustable stop device through the locating part, solves the nonadjustable problem of removal stroke of current piston.

The purpose of the utility model is realized like this: the utility model provides a hydraulic tool with adjustable stop device, includes the cylinder body, the portable thrust unit that is provided with in the cylinder body, slidable is provided with the locating part that is used for restricting the thrust unit removal in the cylinder body, installs mobilizable mounting in the locating part, adjusts the mounting and makes its joint with the position of fixed locating part between cylinder body and locating part.

Preferably, a sliding groove for the limiting part to slide is formed in the cylinder body, and a limiting groove for the fixing part to abut against is formed in the end face of the sliding groove.

Preferably, the fixing part is a ball, a through hole for the ball to pass through is formed in the side wall of the limiting part, a button is installed in the limiting part, and when the button is located at the lower end position, the ball enters the through hole; when the button is positioned at the upper end, the ball is positioned in the through hole and the limiting groove.

Preferably, the lower extreme shaping of button has the first annular portion that is used for making the ball card to go into the spacing inslot, and the size of first annular portion matches with the inner chamber of locating part, and the upper end shaping of first annular portion has the second annular portion that supplies the ball to get into, and the diameter of second annular portion is less than the diameter size of first annular portion.

Preferably, the diameter of the limiting groove is smaller than that of the round ball, and the length between the through hole and the second annular part is larger than that of the round ball.

Preferably, a first spring is abutted between the bottom of the button and the limiting member, and the upper end of the button extends out of the sliding member and is formed with a pressing portion.

Preferably, the outer periphery of the cylinder body is sleeved with a slidable sliding piece, and the limiting piece is fixed on the inner side of the sliding piece through a fastener.

Preferably, the pushing means comprises: the one end that promotes the piece is connected with the power supply of its removal of drive, promote and install the pivot on the piece, the cover is equipped with rotatable runner in the pivot.

Preferably, the side surface of the limiting member is formed with an abutting surface for abutting against the rotating wheel, and the abutting surface is arc-shaped.

Preferably, one end of the cylinder body is connected with an oil cylinder, a piston is movably arranged in the oil cylinder, one end of the piston is connected with the pushing block through a piston rod, and the other end of the piston is connected with the power source; the power source is a hydraulic pump, and a second spring is connected between the piston and the inner end face of the oil cylinder in a butting mode.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses an adjust the position of locating part, can change thrust unit's removal stroke to be suitable for the crimping of unidimensional pipe fitting, after the position of removing the locating part, make the locating part joint between cylinder body and locating part through adjusting the mounting, thereby the position of fixed locating part makes thrust unit's removal stroke shorten, and when crimping small-size pipe fitting, work efficiency is higher.

2. The utility model has the advantages that through the design of the limiting groove, when the button is pressed, namely the button is positioned at the lower end position in the limiting part, the ball enters the through hole, and at the moment, the limiting part can slide in the sliding groove at will to adjust the position; after the button is loosened, namely when the button is located at the upper end position in the limiting part, the ball is located between the through hole and the limiting groove, and the limiting part is fixed at the position to limit the moving stroke of the pushing device and improve the working efficiency.

3. The utility model discloses a design of first annular portion and second annular portion, when the button rebound, because the diameter of second annular portion is great, can extrude the ball from the through-hole, when the button rebound, because the diameter of first annular portion is less, the space that supplies the ball to get into has remained, therefore in the ball will enter into the through-hole, make the regulation of locating part fixed convenient.

4. The utility model provides a length between through-hole and the second annular portion is greater than the diameter of ball, can guarantee that the ball gets into the through-hole after, can not have some volume card at the spacing groove to in the position of adjusting the locating part, thereby the stroke that the adjustment piston removed.

5. The utility model relates to a diameter of spacing groove is less than the diameter of ball, when guaranteeing that the ball gets into the spacing groove, can not fall down from the spacing inslot to the position of fixed locating part makes the stroke that the piston removed at every turn when the pipe fitting crimping to same pipe diameter remain unchanged.

6. The utility model discloses a design that the arc supports the face, with the partly shape looks adaptation of runner outline, increase area of contact, improve stability.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the utility model suitable for a large-size pipe fitting.

Fig. 2 is the utility model discloses a spatial structure schematic diagram when being applicable to small-size pipe fitting.

Fig. 3 is a schematic structural view of the present invention with the sliding member removed.

Fig. 4 is a schematic structural view of the limiting device and the pushing device.

Fig. 5 is a top view of the present invention.

Fig. 6 is a cross-sectional view of the structure at a-a in fig. 5.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.

Fig. 8 is a sectional view of the structure at B-B in fig. 5.

Fig. 9 is a schematic structural view of the button of fig. 8 after being moved upward.

Reference numerals: 1-a cylinder body; 2-a pushing device; 3-a limiting part; 4-round balls; 5-a sliding groove;

6-a limiting groove; 7-a through hole; 8-a button; 9-a second annular portion; 10-a first annular portion; 11-a first spring; 12-a pressing part; 13-a slide; 14-a fastener; 15-pushing block; 16-a rotating shaft; 17-a runner;

18-an abutment face; 19-oil cylinder; 20-a piston; 21-a piston rod; 22-second spring.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-9.

A hydraulic tool with an adjustable limiting device.

As shown in fig. 1, the pipe joint clamping device comprises a cylinder body 1, a pushing device 2 for pushing a pipe joint clamp is movably arranged in the cylinder body 1, and in the advancing process of the pushing device 2, an upper clamp head and a lower clamp head of the pipe joint clamp are clamped tightly, so that a clamped pipe joint is crimped. After the operation is completed, pushing device 2 will return to the original position so as to perform the next crimping action, but because the diameters of the clamped pipe fittings are different in size, the required stroke of pushing device 2 movement is different, so that when the small-size pipe fittings are crimped next time, the work can be completed only by moving a shorter stroke, but pushing device 2 still moves the same stroke, and therefore the work efficiency is low.

With reference to fig. 3, a limiting member 3 for blocking the movement of the pushing device 2 is slidably disposed in the cylinder 1, and with reference to fig. 1 and 2, by adjusting the position of the limiting member 3, the initial position of the pushing device 2 can be changed, so as to change the moving stroke of the pushing device 2, and thus, the crimping device is suitable for crimping pipe fittings of different sizes.

Combine fig. 1 and fig. 4, install mobilizable mounting in the locating part 3, the mounting is ball 4, after the position of the locating part 3 that moves left, make partly joint of ball 4 in the spacing groove 6 of cylinder body 1 through adjusting the mounting, another part joint is in the through-hole 7 of locating part 3, thereby the position of fixed locating part 3, can make thrust unit 2's initial position, be located the position that leans on before, thereby make thrust unit 2's removal stroke shorten, combine fig. 2, when crimping small-size pipe fitting, work efficiency is higher.

Specifically looking at fig. 1, set up in the cylinder body 1 and supply the gliding sliding tray 5 of locating part 3, the terminal surface shaping of sliding tray 5 has the spacing groove 6 that supplies the mounting to support and lean on, and in the in-service use process, the quantity of spacing groove 6 is provided with a plurality of, and distributes in the different positions of 5 medial surfaces of sliding tray, thereby ball 4 can support with spacing groove 6 in the position of difference and support and lean on and to make locating part 3 fix in the position of difference, the crimping of the different size pipe fittings of adaptation, application scope is wide.

Next, the working principle of the fixing member is specifically described, and referring to fig. 4 specifically, the fixing member is a round ball 4 or an elliptical ball or a cylinder with arc surfaces at two ends, a through hole 7 for the round ball 4 to pass through is formed in the side wall of the limiting member 3, and a button 8 is installed in the limiting member 3.

Referring to fig. 8 in particular, when the button 8 is pressed, that is, when the button 8 is located at the lower end position, the sphere 4 enters the through hole 7, and at this time, the limiting member 3 can slide freely in the sliding groove 5, that is, as shown in fig. 8, the limiting member 3 can be adjusted in position back and forth in the direction perpendicular to the paper surface, and at this time, the position of the pushing device 2 is also adjusted; then, referring to fig. 9 specifically, after the button 8 is released, that is, when the button 8 is located at the upper end position, the spherical ball 4 is located between the through hole 7 and the limiting groove 6, the limiting member 3 is clamped in the limiting groove 6 through the spherical ball 4, and at this time, the limiting member 3 is fixed at the position, so that the pushing device 3 is prevented from being pushed to limit the moving stroke of the pushing device 3, and the position of the pushing device 2 after adjustment is fixed.

Specifically, see fig. 8, next specifically explain the structure of the button 8, the lower end of the button 8 is formed with a first annular portion 10 for clamping the ball 4 into the limiting groove 6, the diameter of the first annular portion 10 matches with the inner cavity of the limiting part 3, and specifically, see fig. 9, the upper end of the first annular portion 10 is formed with a second annular portion 9 for the ball 4 to enter, the diameter of the second annular portion 9 is smaller than the diameter of the first annular portion 10, when the button 8 moves upwards, because the diameter of the second annular portion 9 is larger, and the end surface is arc-shaped, the ball 4 can be extruded from the through hole 7, and when the button moves downwards, because the diameter of the first annular portion 9 is smaller, a space for the ball to enter is left, the ball 4 can enter the through hole 7.

Referring to fig. 9, in order to ensure that the ball 4 does not fall down from the limiting groove 6 when entering the limiting groove 6, the diameter of the limiting groove 6 is designed to be smaller than the diameter of the ball 4, and in combination with fig. 8, in order to ensure that the ball 4 does not have a part of volume to be clamped in the limiting groove 6 after entering the through hole 7, the length between the through hole 7 and the second annular portion 9 is designed to be larger than the diameter of the ball 4.

With reference to fig. 8 and 9, a first spring 11 is abutted between the bottom of the button 8 and the limiting member 3, and can realize automatic reset after the button 8 is released, and the upper end of the button 8 extends out of the sliding member 13 and is formed with a pressing portion 12, so that a user can press the button conveniently.

Referring to fig. 2 and 4, a slidable sliding member 13 is sleeved on an outer circumference of the cylinder 1, the position limiting member 3 is fixed to an inner side of the sliding member 13 by a fastening member 14, and the position of the position limiting member 3 is changed by moving the sliding member 3.

With particular reference to fig. 4, the pushing device 2 comprises: the automatic pressing device comprises a pushing block 15, wherein one end of the pushing block 15 is connected with a power source for driving the pushing block 15 to move, a rotating shaft 16 is installed on the pushing block 15, a rotatable rotating wheel 17 is sleeved on the rotating shaft 16, in the actual operation process, the pushing block 15 is driven to move through the power source, and then one end of an upper clamp body and one end of a lower clamp body of the scissors clamp are pushed through the rotating wheel 17, so that the scissors clamp can complete the pressing action.

Referring to fig. 6 specifically, one end of the cylinder body 1 is connected with an oil cylinder 19, a piston 20 is movably arranged in the oil cylinder 19, one end of the piston 20 is connected with the pushing block 15 through a piston rod 21, and the other end of the piston 20 is connected with the power source; the power source is a hydraulic pump, a second spring 22 is connected between the piston 20 and the inner end face of the oil cylinder 19 in a propping manner, and the second spring 22 is used for enabling the piston 20 to realize automatic reset.

With reference to fig. 4 and 7, an abutting surface 18 for abutting against the rotating wheel 17 is formed on a side surface of the limiting member 3, and the abutting surface 18 is arc-shaped and is matched with a part of the outer contour of the rotating wheel 17, so that the contact area is increased, and the stability is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A hydraulic tool with adjustable stop device, includes cylinder body (1), its characterized in that: the movable thrust unit (2) that is provided with in cylinder body (1), slidable is provided with locating part (3) that are used for restricting thrust unit (2) and remove in cylinder body (1), installs mobilizable mounting in locating part (3), adjusts the mounting and makes its joint with the position of fixed locating part (3) between cylinder body (1) and locating part (3).

2. A hydraulic tool having an adjustable stop device according to claim 1 wherein: a sliding groove (5) for the limiting part (3) to slide is formed in the cylinder body (1), and a limiting groove (6) for the fixing part to abut against is formed in the end face of the sliding groove (5).

3. A hydraulic tool having an adjustable stop device according to claim 2 wherein: the fixing piece is a round ball (4), a through hole (7) for the round ball (4) to pass through is formed in the side wall of the limiting piece (3), a button (8) is installed in the limiting piece (3), and when the button (8) is located at the lower end position, the round ball (4) enters the through hole (7); when the button (8) is positioned at the upper end, the ball (4) is positioned in the through hole (7) and the limiting groove (6).

4. A hydraulic tool having an adjustable stop device according to claim 3 wherein: the lower extreme shaping of button (8) has and is used for making ball (4) card to go into first annular portion (10) in spacing groove (6), the size of first annular portion (10) and the inner chamber phase-match of locating part (3), and the upper end shaping of first annular portion (10) has second annular portion (9) that supply ball (4) to get into, and the diameter of second annular portion (9) is less than the diameter size of first annular portion (10).

5. A hydraulic tool having an adjustable stop device according to claim 4 wherein: the diameter of the limiting groove (6) is smaller than that of the round ball (4), and the length between the through hole (7) and the second annular part (9) is larger than that of the round ball (4).

6. A hydraulic tool having an adjustable stop device according to claim 3 wherein: the bottom of button (8) and locating part (3) between the butt have first spring (11), the upper end of button (8) stretches out outside slider (13) and is formed with and presses splenium (12).

7. A hydraulic tool having an adjustable stop device according to claim 2 wherein: the periphery cover of cylinder body (1) is equipped with slidable slider (13), locating part (3) are fixed through fastener (14) the inboard of slider (13).

8. A hydraulic tool having an adjustable stop device according to claim 1 wherein: the pushing device (2) comprises: promote piece (15), the one end that promotes piece (15) is connected with the power supply that drives its removal, promote and install pivot (16) on piece (15), the cover is equipped with rotatable runner (17) on pivot (16).

9. The hydraulic tool having an adjustable stop device of claim 8, wherein: and an abutting surface (18) for abutting against the rotating wheel (17) is formed on the side surface of the limiting piece (3), and the abutting surface (18) is arc-shaped.

10. The hydraulic tool having an adjustable stop device of claim 8, wherein: one end of the cylinder body (1) is connected with an oil cylinder (19), a piston (20) is movably arranged in the oil cylinder (19), one end of the piston (20) is connected with the pushing block (15) through a piston rod (21), and the other end of the piston (20) is connected with the power source; the power source is a hydraulic pump, and a second spring (22) is connected between the piston (20) and the inner end face of the oil cylinder (19) in a propping manner.

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