CN214366563U

CN214366563U - Pressure adjustable horizontal swash plate pump

Info

Publication number: CN214366563U
Application number: CN202120399529.0U
Authority: CN
Inventors: 张红波; 毛飞熊
Original assignee: Nantong Woteli Machinery Manufacturing Co ltd
Current assignee: Nantong Woteli Machinery Manufacturing Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-08
Anticipated expiration: 2031-02-23

Abstract

The utility model discloses a but pressure regulating formula level swash plate pump, including the plunger pump, the one end of plunger pump is equipped with outlet conduit, outlet conduit's pipe wall connects and is equipped with overflow pipe, be equipped with movable valve rod mechanism in the overflow pipe, valve rod mechanism can stretch into in the outlet conduit, valve rod mechanism is connected with pressure regulating mechanism. By changing the assembly structure or the assembly position, the minimum working pressure protection value and the maximum working pressure protection value can be adjusted according to the use requirement, so that the applicability is higher; the minimum working pressure protection value and the maximum working pressure protection value are set, so that potential safety hazards caused by self improvement or illegal modification due to insufficient relevant knowledge of a user are reduced; compared with a fixed working pressure value set by a factory, the device can manually adjust the working pressure value, and is more flexible and convenient.

Description

Pressure adjustable horizontal swash plate pump

Technical Field

The utility model relates to a cleaning machine technical field, more specifically say, it relates to a but pressure regulating formula horizontal swash plate pump.

Background

When the existing cleaning machine is used, the pressure adjusting device is adjusted and locked in advance by a manufacturer, a user can only use the cleaning machine according to the pressure set by the manufacturer, and the pressure set by the conventional cleaning equipment is higher and is generally 16MPA-22 MPA. When an object with a softer material needs to be cleaned, the pressure of the cleaning equipment cannot be adjusted, so that damage is easily caused, and the use defect is large.

SUMMERY OF THE UTILITY MODEL

To the deficiencies of the prior art, the utility model aims to provide a but pressure regulating formula horizontal swash plate pump solves foretell one or more problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

but pressure regulating formula horizontal swash plate pump, including the plunger pump, the one end of plunger pump is equipped with outlet conduit, outlet conduit's pipe wall connects and is equipped with the overflow pipe, be equipped with movable valve rod mechanism in the overflow pipe, valve rod mechanism can stretch into in the outlet conduit, valve rod mechanism is connected with pressure regulating mechanism.

Further, the plunger pump is a swash plate type axial plunger pump.

Further, the valve rod mechanism comprises a valve sleeve, and a plurality of O-shaped rings are arranged outside the valve sleeve.

Further, valve rod assembly is worn to be equipped with by the inside valve casing of valve barrel, valve rod assembly with be equipped with retaining ring and O type circle between the valve casing, valve rod assembly's pressure regulating screw rod stretches out the end of valve casing, the cylindric lock passes simultaneously the end of valve barrel with the pressure regulating screw rod.

Further, pressure regulating mechanism includes the pressure regulating handle, the inside adjustment tank that link up of having seted up of pressure regulating handle, be equipped with hollow lock nut in the adjustment tank, lock nut with the pressure regulating handle is connected, the mount pad of pressure regulating handle wears to establish on the pressure regulating screw rod, the pressure regulating handle can be followed the motion of pressure regulating screw rod.

Further, the tail end of the pressure regulating screw rod is provided with a locknut, the locknut is located between the mounting seat and the locknut, and the pressure regulating handle is connected with the valve sleeve through a pressure regulating spring.

Furthermore, an adjusting screw penetrates through the locking nut, one end of the adjusting screw is in butt joint with the pressure regulating screw rod, a fixing nut is arranged at the other end of the adjusting screw, and the fixing nut is located outside the locking nut.

Further, one end, far away from the valve rod mechanism, of the pressure regulating handle is provided with a pressure regulating handle cover.

To sum up, the utility model discloses following beneficial effect has:

1. by changing the assembly structure or the assembly position, the minimum working pressure protection value and the maximum working pressure protection value can be adjusted according to the use requirement, so that the applicability is higher;

2. the minimum working pressure protection value and the maximum working pressure protection value are set, so that potential safety hazards caused by self improvement or illegal modification due to insufficient relevant knowledge of a user are reduced;

3. compared with a fixed working pressure value set by a factory, the device can manually adjust the working pressure value, and is more flexible and convenient.

Drawings

Fig. 1 is a cross-sectional view of the overall structure provided by the present invention;

fig. 2 is a cross-sectional view of the valve stem mechanism and the pressure regulating mechanism of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

in the figure: 1. a plunger pump; 11. a swash plate; 12. a plunger mechanism; 2. a water outlet pipeline; 3. an overflow conduit; 4. a valve stem mechanism; 41. a valve housing; 42. a valve spool; 43. a valve stem assembly; 44. a retainer ring; 44a, a split washer; 44b, a closed retainer ring; 45. a pressure regulating screw; 46. a cylindrical pin; 47. an end seat; 5. a pressure regulating mechanism; 51. a pressure regulating handle; 51a, a mounting seat; 52. an adjustment groove; 53. locking the nut; 54. a locknut; 55. a pressure regulating spring; 56. an adjusting screw; 57. fixing a nut; 58. a pressure regulating handle cover; 6. and an O-shaped ring.

Detailed Description

Example 1:

the present invention will be described in further detail with reference to the accompanying fig. 1-3.

Based on the view angle of fig. 2, left-right, up-down, front-back expression directions are defined, and then the defined directions are used as the standard, it should be noted that the setting of the relevant positions can be changed on the premise of ensuring the relative relationship, such as simply changing one end from right to left and the other end from left to right, or changing one end from front to back and the other end from back to front; the following description is of an embodiment for ease of understanding and is not intended to be an absolute limitation or limitation on the scope of patent protection, given the exact relative positions of the various components.

A pressure-adjustable horizontal swash plate 11 pump is shown in figure 1, the main body of the pump is a plunger pump 1, the pump is generally selected to be a swash plate 11 type axial plunger pump 1, a rotatable swash plate 11 is arranged inside one end of the plunger pump 1, an included angle between a neutral line of the swash plate 11 and a horizontal line is 11.5 degrees, and the swash plate 11 rotates through a bearing. The special plunger mechanism 12 is arranged on the swash plate 11, the plunger mechanism 12 moves back and forth along the groove body under the rotation of the swash plate 11, regular and cyclic liquid suction action and liquid discharge action are realized, and discharged liquid is conveyed to the water outlet pipeline 2 from a gap of the swash plate 11.

The water outlet pipeline 2 is arranged at the other end of the plunger pump 1, an overflow pipeline 3 is connected to the pipe wall of the water outlet pipeline 2, the overflow pipeline 3 is perpendicular to the water outlet pipeline 2, and the overflow pipeline 3 is communicated with the water outlet pipeline 2 inside.

The inside of overflow pipe 3 is equipped with movable valve rod mechanism 4, and valve rod mechanism 4 can slide along overflow pipe 3, therefore the end of 4 one ends of valve rod mechanism can stretch into outlet conduit 2 through the junction of two pipelines, and the end of the 4 other ends of valve rod mechanism is connected with pressure regulating mechanism 5, and pressure regulating mechanism 5 is used for adjusting the length that valve rod mechanism 4 stretched into outlet conduit 2, changes the velocity of flow of water, and then realizes the change and the regulation of water pressure.

As shown in fig. 2 and 3, the valve rod mechanism 4 includes a valve sleeve 41, two notch grooves are formed outside the valve sleeve 41, a special O-ring 6 is arranged in the groove, a valve groove 42 is formed inside the valve sleeve 41, the valve groove 42 penetrates through a valve rod assembly 43, a retainer ring 44 and the O-ring 6 are arranged between the valve rod assembly 43 and the valve groove 42, and the retainer ring 44 is divided into an opening retainer ring 44a and a closing retainer ring 44 b. Specifically be valve rod assembly 43's left end and be equipped with the valve plug, the breach has been seted up in the valve plug outside, and the left end of valve plug breach is equipped with split ring 44a, and split ring 44a right side is equipped with O type circle 6. The right end of the valve rod assembly 43 is provided with a pressure regulating screw rod 45, the pressure regulating screw rod 45 extends out of the right end of the valve sleeve 41, the extending part is provided with threads, the non-extending part is provided with a closed check ring 44b, the closed check ring 44b is positioned in the valve groove 42, and the left side of the closed check ring 44b is provided with an O-shaped ring 6.

An end seat 47 is arranged at the right end of the valve sleeve 41, a slotted hole is formed in the end seat 47 along the vertical direction, a slotted hole is correspondingly formed in the left end of the pressure regulating screw rod 45 along the vertical direction, the slotted holes of the pressure regulating screw rod and the slotted hole are aligned, a cylindrical pin 46 is inserted, and the limitation of the whole valve rod assembly 43 in the rotating direction is realized.

As shown in fig. 2 and 3, the pressure regulating mechanism 5 includes a pressure regulating handle 51, the pressure regulating handle 51 is a handle structure with a through end, a through regulating groove 52 is formed inside the pressure regulating handle 51, an installation base 51a is arranged at the left end inside the pressure regulating handle 51, a hollow locking nut 53 is arranged in the regulating groove 52, the left end of the locking nut 53 is connected with the right end of the installation base 51a, and the diameter of the locking nut 53 is smaller than the inner diameter of the regulating groove 52.

The pressure regulating screw 45 passes through a threaded hole in the center of the mounting seat 51a, and the mounting seat 51a and the pressure regulating handle 51 can slide on the pressure regulating screw 45 along the threads.

The right end of the pressure regulating screw 45 is provided with a locknut 54, the locknut 54 is positioned inside the locknut 53 and between the locknut 53 and the mounting seat 51a, and the pressure regulating handle 51 is connected with the valve sleeve 41 through a pressure regulating spring 55.

An adjusting screw 56 penetrates through the right end of the locking nut 53, a special fixing nut 57 is arranged at the right end of the adjusting screw 56, the fixing nut 57 is located outside the locking nut 53, and the adjusting screw 56 is overlapped with a neutral line of the pressure regulating screw rod 45.

The opening part at the right end of the pressure regulating handle 51 is provided with a pressure regulating handle 51 cover, the right end of the pressure regulating handle 51 is sealed by the pressure regulating handle 51 cover, and the right end of the pressure regulating handle 51 cover is a cambered surface.

The working principle is as follows: in the assembling process, after the plunger pump 1, the water outlet pipeline 2, the overflow pipeline 3, the valve rod mechanism 4, the O-shaped ring 6 and the check ring 44 are installed in sequence, when the pressure regulating mechanism 5 is installed, the pressure regulating handle 51 is rotated to loosen the pressure regulating spring 55 to the minimum working pressure of 0.4MPA of the cleaning equipment, namely the water inlet pressure of the water outlet pipeline 2 is 0.4MPA at the moment, the current posture is kept, the locknut 54 is installed in the pressure regulating handle 51 to ensure the right movement trend that the locknut 54 is blocked by the pressure regulating handle 51, and then the locking nut 53 is installed; rotating the pressure adjustment handle 51 compresses the pressure adjustment spring 55 to the maximum operating pressure of the cleaning apparatus. Adjusting screw 56 is installed at lock nut 53's right-hand member, makes adjusting screw 56's left end contradict at the right-hand member end of pressure regulating screw 45, installs fixation nut 57 outside lock nut 53 simultaneously, guarantees that fixation nut 57's left surface tightly laminates the lateral surface of lock nut 53 right-hand member, blocks the trend that the pressure regulating nut continues the left side to press promptly.

After the setting is finished, the pressure regulating handle 51 is rotated to move towards the valve rod mechanism 4, so that the working pressure can be increased; keep away from valve rod mechanism 4, can reduce operating pressure, can adjust wantonly between 0.4MPA and maximum operating pressure, but general maximum operating pressure is the setting operating pressure when leaving the factory, and is fixed, so compare in setting up the plunger pump 1 of leaving the factory pressure, the device of this application has increased adjustable means.

The user is unfamiliar with under the condition of structure, and the pressure-regulating valve structure of conventional equipment needs to be adjusted with the help of other instruments, if unclear theory of operation, thinks very easily that the setting state of adjusting spring compression to the limit is maximum operating pressure, presses easily and dies, and when closing cleaning equipment's spray gun, the pressure nowhere releases, and the pump can explode and split, has the potential safety hazard.

Even if the user removes the adjusting screw 56 and wants to obtain a higher pressure for cleaning, the pressure adjusting nut and the locknut 54 can be used for a certain limiting function.

The reason is as follows:

firstly, the length of the pressure regulating screw 45 ensures that the pressure regulating handle 51 rotates to the right end head, the theoretical value of the working pressure is 0, and therefore the arrangement position of the locknut 54 is actually very close to the right end head of the pressure regulating screw 45.

Theoretically, the length of the adjusting screw 56 extending into the locking nut 53 only needs to be ensured that the adjusting screw 56 and the pressure regulating screw 45 can be mutually abutted and limited without being broken or deviated, so that the length of the adjusting screw 56 is not too long.

In a normal state, the adjusting screw 56 and the pressure adjusting screw rod 45 are suspended, but the threaded connection between the pressure adjusting handle 51 and the pressure adjusting screw rod 45 can ensure that the requirements of the whole structure and use are maintained.

Therefore, after the adjusting screw 56 is removed, the left-hand rotation compression is continued, and only the sum of the length of the adjusting screw 56 extending into the inner cavity of the locking nut 53 and the length of the pressure regulating screw 45 at the right end part of the locknut 54 can be advanced, so that the sum is limited, and the pressurization amplitude is small. In this case, the lock nut 54 and the lock nut 53 may also have a spacing therebetween. The user can not continue to adjust, and damage and loss are avoided.

Therefore, the maximum working pressure value and the minimum protection pressure value in this embodiment can be adjusted according to actual use, and the length of the lock nut 53, the length of the adjusting screw 56, the position of the fixing nut or the position of the lock nut 54, and the like, can be correspondingly changed, so that the applicability of the overall structure of the device is stronger.

Example 2:

the difference from embodiment 1 is that the pressure adjusting mechanism 5 only stores the pressure adjusting handle 51, the mounting seat 51a, and the locknut 54, and limits the thread length of the pressure adjusting screw 45, thereby ensuring that the left end of the pressure adjusting handle 51 rotates to the limit, and the working pressure reaches the maximum value.

The pump body in the embodiment is very harsh in application condition and can only be used for the environment or equipment with a single and fixed maximum working pressure value.

Although both embodiments may serve a limiting purpose, embodiment 2 is not as structurally sound as in embodiment 1, and the maximum operating pressure in embodiment 1 is supported to be appropriately adjusted and adapted according to the use environment and the change of equipment.

It should be noted that the present embodiment is only for explaining the present invention, and it is not a limitation of the present invention, and those skilled in the art can make modifications to the present embodiment as necessary without inventive contribution after reading the present specification, but all are protected by patent law within the scope of the claims of the present invention.

Claims

1. But pressure regulating formula horizontal swash plate pump, including plunger pump (1), its characterized in that: one end of the plunger pump (1) is provided with a water outlet pipeline (2), the pipe wall of the water outlet pipeline (2) is connected with an overflow pipeline (3), a movable valve rod mechanism (4) is arranged in the overflow pipeline (3), the valve rod mechanism (4) can stretch into the water outlet pipeline (2), and the valve rod mechanism (4) is connected with a pressure regulating mechanism (5).

2. The adjustable pressure horizontal swash plate pump of claim 1, wherein: the plunger pump (1) is a swash plate type axial plunger pump.

3. The adjustable pressure horizontal swash plate pump of claim 1, wherein: the valve rod mechanism (4) comprises a valve sleeve (41), and a plurality of O-shaped rings (6) are arranged outside the valve sleeve (41).

4. A pressure adjustable horizontal swash plate pump according to claim 3, wherein: valve stem assembly (43) are worn to establish by valve groove (42) of valve barrel (41) inside, valve stem assembly (43) with be equipped with retaining ring (44) and O type circle (6) between valve groove (42), pressure regulating screw (45) of valve stem assembly (43) stretch out the end of valve groove (42), cylindric lock (46) pass simultaneously the end of valve barrel (41) with pressure regulating screw (45).

5. The adjustable pressure horizontal swash plate pump of claim 4, wherein: pressure regulating mechanism (5) are including pressure regulating handle (51), the inside regulation groove (52) of having link up of seting up of pressure regulating handle (51), be equipped with hollow lock nut (53) in regulation groove (52), lock nut (53) with pressure regulating handle (51) are connected, the mount pad (51a) of pressure regulating handle (51) are worn to establish on pressure regulating screw rod (45), pressure regulating handle (51) can be followed pressure regulating screw rod (45) motion.

6. The adjustable pressure horizontal swash plate pump of claim 5, wherein: the terminal of pressure regulating screw rod (45) is equipped with locknut (54), locknut (54) are located mount pad (51a) with between lock nut (53), pressure regulating handle (51) with valve barrel (41) are connected through pressure regulating spring (55).

7. The adjustable pressure horizontal swash plate pump of claim 6, wherein: adjusting screw (56) penetrate through locking nut (53), adjusting screw (56) one end with pressure regulating screw rod (45) butt joint, adjusting screw (56) other end is equipped with fixation nut (57), fixation nut (57) are located outside locking nut (53).

8. The adjustable pressure horizontal swash plate pump of claim 7, wherein: one end of the pressure regulating handle (51) far away from the valve rod mechanism (4) is provided with a pressure regulating handle cover (58).