Plunger pump with pressure gauge capable of selecting installation position

Abstract

The utility model provides a plunger pump with a pressure gauge capable of selecting the installation position. The plunger pump comprises a crankcase, an outer cover plate is arranged on the outer surface of a pressure cavity, a pressure gauge body is installed on the outer wall face of the outer cover plate, two circles of sealing rubber strips are arranged on the outer side of an inner cover plate, and a threaded rod is movably installed in a front support. The outer cover plate and the pressure gauge body arranged on the outer cover plate are installed on the outer side of the pressure cavity, when the outer cover plate is installed, the outer cover plate can be pushed up and down, so that the front support and the rear support slide in the limiting grooves, and then the installation position of the pressure gauge body is adjusted; when the pressure gauge is installed, the screw rod pulls the rear support to move towards the upper portion of the limiting groove, meanwhile, the inner cover plate is tightly pressed on the inner wall face of the pressure cavity in an attached mode, the limiting groove is sealed from the interior of the pressure cavity, then the outer cover plate is fixed, and the pressure gauge installation structure can conveniently adjust the installation position of the pressure gauge.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plunger pump technical field relates to a plunger pump of pressure gauge optional installation position. BACKGROUND

[0002] Plunger pump is an important device of hydraulic system, it relies on plunger reciprocating motion in cylinder, make sealed working cavity volume change to realize oil absorption, oil, plunger pump has high rated pressure, compact structure, high efficiency and flow regulation convenient advantage, plunger pump is widely used in high pressure, large flow and flow needs to adjust the occasion, plunger pump structure composition mainly has eccentric wheel, plunger, spring, cylinder, two check valve, plunger and cylinder hole form airtight volume, eccentric wheel rotates a rotation, plunger reciprocating motion once, oil is absorbed to the downward movement, oil is discharged to the upward movement.

[0003] In order to detect the oil pressure inside the cylinder, a special pressure gauge is usually needed to detect, but the existing pressure gauge is installed on the reserved installation interface outside the cylinder, which can only be monitored at a fixed point, and the detection position cannot be freely adjusted, so the installation position needs to be improved. SUMMARY

[0004] The utility model discloses a plunger pump of pressure gauge optional installation position to solve the problem in the background art.

[0005] The utility model discloses a plunger pump of pressure gauge optional installation position, including crankcase, piston chamber, outer cover and pressure gauge body, one end of crankcase is provided with piston chamber, one end of piston chamber is provided with pressure chamber, the outer surface of pressure chamber is provided with outer cover, the outer wall surface of outer cover is installed with pressure gauge body, the inside of pressure chamber is provided with inner cover, the outside of inner cover is provided with two circle sealing rubber strip, the middle one side of inner cover is provided with rear support, the middle one side of outer cover is provided with front support, the inside movable mounting of front support has screw rod, and one end of screw rod is connected in the inside of rear support.

[0006] In the above-mentioned plunger pump of pressure gauge optional installation position, the inside of pressure chamber is provided with a limiting groove, and the front support and the rear support are movably arranged in the limiting groove.

[0007] In the above-mentioned plunger pump of pressure gauge optional installation position, the outer wall surface of pressure chamber is provided with a mounting hole, the corner of outer cover is provided with a screw, and one end of the screw is screw-connected in the inside of the mounting hole.

[0008] In the plunger pump with selectable installation position of pressure gauge, the top of the pressure cavity is provided with an inlet port, and the bottom of the pressure cavity is provided with an outlet port, and the inside of the inlet port and the inside of the outlet port are both provided with a one-way valve.

[0009] In the plunger pump with selectable installation position of pressure gauge, the outer side of the outer cover plate is movably provided with a knob, and one side of the knob is connected with one end of the screw rod.

[0010] In the plunger pump with selectable installation position of pressure gauge, the top end and the bottom end of the inner cover plate are both provided with a limiting sliding block, and the inner wall surface of the pressure cavity is provided with a limiting sliding groove, and the limiting sliding block is slidably connected in the limiting sliding groove.

[0011] Compared with the prior art, the plunger pump with selectable installation position of pressure gauge has the following advantages:

[0012] The outer side of the pressure cavity is provided with an outer cover plate and a pressure gauge body arranged on the outer cover plate, when the outer cover plate is installed, the outer cover plate can be pushed up and down, so that the front support and the rear support slide in the limiting groove, thereby adjusting the installation position of the pressure gauge body, when fixed, the knob on the outer side of the outer cover plate is rotated, the screw rod is driven to rotate through the knob, the rear support is pulled by the screw rod, and the rear support moves towards the upper part of the limiting groove, at the same time, the inner cover plate is tightly attached to the inner wall surface of the pressure cavity, thereby sealing the limiting groove from the inside of the pressure cavity, then the outer cover plate is fixed again, the pressure gauge installation structure can conveniently adjust the installation position of the pressure gauge, and can be widely used. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic view of the plunger pump with selectable installation position of pressure gauge.

[0014] Figure 2 is a structure schematic view of the plunger pump with selectable installation position of pressure gauge.

[0015] Figure 3 is a structure schematic view of the plunger pump with selectable installation position of pressure gauge.

[0016] In the figure, 1, crankcase; 2, piston chamber; 3, pressure cavity; 4, outer cover plate; 5, pressure gauge body; 6, knob; 7, inner cover plate; 8, sealing rubber strip; 9, limiting sliding block; 10, rear support; 11, screw rod; 12, front support; 13, limiting groove; 14, mounting hole; 15, inlet port; 16, outlet port. DETAILED DESCRIPTION

[0017] The utility model discloses the specific embodiment of the utility model below and combining the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0018] A pressure gauge selectable installation position's plunger pump, including crankcase 1, piston chamber 2, outer cover plate 4 and pressure gauge body 5, one end of crankcase 1 is provided with piston chamber 2, one end of piston chamber 2 is provided with pressure cavity 3, the outer surface of pressure cavity 3 is provided with outer cover plate 4, the outer wall surface of outer cover plate 4 is installed with pressure gauge body 5, the inside of pressure cavity 3 is provided with inner cover plate 7, the outside of inner cover plate 7 is provided with two circles of sealing rubber strip 8, the middle one side of inner cover plate 7 is provided with rear support 10, the middle one side of outer cover plate 4 is provided with front support 12, the inside of front support 12 is movably installed with screw rod 11, one end of screw rod 11 is threadedly connected in the inside of rear support 10, and piston rod body is arranged in the inside of piston chamber 2.

[0019] As Figure 1 , Figure 2 , Figure 3 Indicated, the utility model discloses a pressure gauge selectable installation position's plunger pump, specifically, the inside of pressure cavity 3 is provided with limit groove 13, and front support 12 and rear support 10 movably set up in the inside of limit groove 13, and the front support 12 and rear support 10 of the application are all metal structure, and the service life is long.

[0020] As Figure 1 , Figure 2 , Figure 3 Indicated, the utility model discloses a pressure gauge selectable installation position's plunger pump, specifically, the outer wall surface of pressure cavity 3 is provided with mounting hole 14, and the corner of outer cover plate 4 is provided with screw, and one end of screw is threadedly connected in the inside of mounting hole 14, and screw mainly fixes outer cover plate 4, and sets up multiple mounting holes 14, can fix outer cover plate 4 at different positions.

[0021] As Figure 1 , Figure 2 , Figure 3 Indicated, the utility model discloses a pressure gauge selectable installation position's plunger pump, specifically, the top of pressure cavity 3 is provided with liquid inlet port 15, the bottom of pressure cavity 3 is provided with liquid outlet port 16, and the inside of liquid inlet port 15 and the inside of liquid outlet port 16 are provided with check valve, and liquid inlet port 15 and liquid outlet port 16 carry out liquid inlet and liquid outlet respectively, and the check valve is the existing disclosure structure, and will not be elaborated in detail.

[0022] As Figure 1 , Figure 2 , Figure 3As shown, the utility model discloses a plunger pump with selectable installation position of pressure gauge, specifically, the outside of outer cover plate 4 is movably installed with knob 6, one side of knob 6 is connected with one end of screw rod 11, knob 6 is provided with antiskid stripe outside, rotates knob 6, can drive screw rod 11 rotation.

[0023] As Figure 1 , Figure 2 , Figure 3 As shown, the utility model discloses a plunger pump with selectable installation position of pressure gauge, specifically, the top end and bottom end of inner cover plate 7 are provided with limiting slide block 9, the inner wall surface of pressure cavity 3 is provided with limiting sliding groove, limiting slide block 9 is slidably connected inside limiting sliding groove, setting limiting slide block 9 mainly supports inner cover plate 7 inside pressure cavity 3, prevents inner cover plate 7 from falling, and inner cover plate 7 is metal cover plate, mainly in order to cooperate outer cover plate 4 to carry out inside and outside double seal to limiting groove 13, prevents liquid leakage at limiting groove 13.

[0024] The utility model discloses a plunger pump with selectable installation position of pressure gauge, when installing pressure gauge body 5, towards the outside of outer cover plate 4 with pressure gauge body 5 is installed, then starts fixing outer cover plate 4, when installing outer cover plate 4, first the one end of screw rod 11 is connected with the inside of rear support 10 with thread, simultaneously, the probe of pressure gauge body 5 passes through inner cover plate 7, then pushes outer cover plate 4 up and down, makes the inside sliding of front support 12 and rear support 10 in limiting groove 13, and then adjusts the installation position of pressure gauge body 5, after adjusting, when fixing, rotates the knob 6 outside outer cover plate 4, drives screw rod 11 rotation through knob 6, makes screw rod 11 pull rear support 10, and rear support 10 moves towards the upper portion of limiting groove 13, simultaneously, inner cover plate 7 is attached and compacted in the inner wall surface of pressure cavity 3, and inner cover plate 7 seals limiting groove 13 from the inside of pressure cavity 3, and then fixes outer cover plate 4 again, the pressure gauge installation structure of the application can conveniently adjust the installation position of pressure gauge, and freely selects installation site, thereby carries out pressure monitoring to different positions in pressure cavity 3, and can be widely used.

[0025] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art. The specific embodiments described in the present text are merely illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A pressure gauge selectable mounting position plunger pump comprising a crankcase (1), a piston chamber (2), an outer cover plate (4) and a pressure gauge body (5), characterized in that, An end of the crankcase (1) is provided with a piston chamber (2), one end of the piston chamber (2) is provided with a pressure cavity (3), the outer surface of the pressure cavity (3) is provided with an outer cover plate (4), the outer wall surface of the outer cover plate (4) is installed with a pressure gauge body (5), the inside of the pressure cavity (3) is provided with an inner cover plate (7), the outer side of the inner cover plate (7) is provided with two rows of sealing rubber strips (8), one side of the middle of the inner cover plate (7) is provided with a rear support (10), one side of the middle of the outer cover plate (4) is provided with a front support (12), the inside of the front support (12) is movably installed with a screw rod (11), one end of the screw rod (11) is threadedly connected in the inside of the rear support (10).

2. A pressure gauge position selectable plunger pump according to claim 1, wherein, The inside of the pressure cavity (3) is provided with a limiting groove (13), the front support (12) and the rear support (10) are movably arranged in the inside of the limiting groove (13).

3. A pressure gauge selectively positionable plunger pump according to claim 1 wherein, The outer wall surface of the pressure cavity (3) is provided with a mounting hole (14), the corners of the outer cover plate (4) are provided with screws, and one end of the screw is threadedly connected in the inside of the mounting hole (14).

4. A pressure gauge selectively positionable plunger pump according to claim 1 wherein, The top of the pressure cavity (3) is provided with a liquid inlet port (15), the bottom of the pressure cavity (3) is provided with a liquid outlet port (16), the inside of the liquid inlet port (15) and the inside of the liquid outlet port (16) are both provided with a one-way valve.

5. A pressure gauge selectively positionable plunger pump according to claim 1 wherein, The outer side of the outer cover plate (4) is movably installed with a knob (6), one side of the knob (6) is connected with one end of the screw rod (11).

6. A pressure gauge selectively positionable plunger pump according to claim 1 wherein, The top end and the bottom end of the inner cover plate (7) are both provided with a limiting sliding block (9), the inner wall surface of the pressure cavity (3) is provided with a limiting sliding groove, and the limiting sliding block (9) is slidably connected in the inside of the limiting sliding groove.

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