CN219197560U - Connecting piece for connecting valve plate and cylinder body and valve plate assembly - Google Patents
Connecting piece for connecting valve plate and cylinder body and valve plate assembly Download PDFInfo
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- CN219197560U CN219197560U CN202223338315.6U CN202223338315U CN219197560U CN 219197560 U CN219197560 U CN 219197560U CN 202223338315 U CN202223338315 U CN 202223338315U CN 219197560 U CN219197560 U CN 219197560U
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Abstract
The utility model discloses a connecting piece for connecting a valve plate and a cylinder body, wherein two ends of the connecting piece are respectively connected with the cylinder body and the valve plate, the cylinder body, the connecting piece and the valve plate are axially connected, one end of the connecting piece is in clearance fit with one end of the cylinder body, which is close to the valve plate, and the other end of the connecting piece is in clearance fit with one end of the valve plate, which is close to the cylinder body. According to the utility model, the connecting piece is axially arranged, so that the flow distribution surfaces of the cylinder body and the flow distribution plate are arranged in a tight and coaxial mode, the action consistency of the cylinder body and the flow distribution plate is optimized, and the action of the cylinder body is not delayed to the flow distribution plate; because the cylinder body and the valve plate cannot have position difference, the sealing effect between the valve plate and the cylinder body cannot be affected, and the high-pressure impact hazard of high-pressure hydraulic oil leaked from the spherical valve surface of the cylinder body and the valve plate to the rubber sealing piece is reduced.
Description
Technical Field
The utility model belongs to the technical field of variable motors, and particularly relates to a connecting piece for connecting a valve plate and a cylinder body and a valve plate assembly.
Background
The variable displacement motor generally adjusts the displacement of the motor by adjusting the position changes of the valve plate and the cylinder body, but due to the design structure of the inclined shaft, torque is directly generated on the driving shaft, and the plunger generates small lateral force on the cylinder body, so that the motor with the structure can lag behind the valve plate in variable displacement, namely the movement of the cylinder body. The valve plate and the cylinder thus have a position difference in the direction of change of the inclination of the motor.
The Chinese patent application with publication No. CN112177876 discloses a cylinder outer cone type strong oil absorption cavitation resistant axial plunger pump, which consists of a shell, an end cover and a rotating assembly. The rotary component comprises a cylinder body with a convex spherical surface on one end surface, and a concave spherical surface valve plate which forms spherical surface flow distribution with the convex spherical cylinder body; the cylinder body inner circle Zhou Waizhui is provided with a plurality of plunger holes which form a certain included angle theta with the axis of the rotary main shaft, the cylinder body is communicated with an oil duct of the waist-shaped groove of the valve plate, the included angle theta between the oil duct and the rotary main shaft is larger than or equal to theta, and the valve plate is internally provided with oil suction and discharge waist-shaped grooves respectively. According to the utility model, unnecessary oil duct turning ports are reduced through the design of the oil duct included angle between the outer cone-shaped cylinder body and the concave spherical port plate as well as between the outer cone-shaped cylinder body and the end cover, so that the resistance of sucking and discharging oil is reduced, the smoothness of sucking and discharging oil is improved, and the local cavitation damage degree is reduced. Only the self-positioning property between the cylinder body and the valve plate is guaranteed during working, but the cylinder body and the valve plate are greatly changed, so that the valve is difficult to be practically applied to most enterprises.
Another example is chinese patent publication No. CN202894977U, which discloses a device for grinding spherical surfaces of a cylinder and a valve plate of a plunger pump, where a cylinder driving motor drives the cylinder to rotate, and a valve plate driving motor drives the valve plate to rotate through an elastic mechanism, and an eccentric mechanism drives the motor through an eccentric mechanism to drive the valve plate to swing. The problem that the valve plate and the cylinder body cannot be tightly and coaxially formed is not solved,
the existing connection mode of the valve plate and the cylinder body has the following defects: (1) The cylinder body and the valve plate cannot form a tight and coaxial structure without great structural change or support of an external machine, so that synchronous movement is realized; (2) The motion of the cylinder body is delayed from the valve plate, so that the sealing effect between the valve plate and the cylinder body is weakened, the instantaneous leakage quantity of the motor is increased, and the rubber sealing element is damaged by high-pressure hydraulic oil leaked from the spherical valve surface of the cylinder body and the valve plate.
Disclosure of Invention
The utility model aims to provide a connecting piece for connecting a valve plate and a cylinder body;
it is a further object of the present utility model to provide a port plate assembly;
the connecting piece for connecting the valve plate and the cylinder body can enable the cylinder body and the valve surface of the valve plate to keep a tight coaxial state, so that the cylinder body does not lag behind the valve plate.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a connecting piece for connecting valve plate and cylinder body, the connecting piece both ends link to each other with cylinder body and valve plate respectively, cylinder body, connecting piece and valve plate axial link to each other, the one end of connecting piece and the one end clearance fit that the cylinder body is close to the valve plate, the other end of this connecting piece and the one end clearance fit that the valve plate is close to the cylinder body.
The valve plate and the cylinder body are axially connected through the connecting piece, so that the cylinder body and the valve plate form a tight coaxial state, the connecting piece is driven to move by the movement of the valve plate, and the cylinder body is driven by the connecting piece at the same time, so that the movement of the cylinder body is not delayed from the valve plate when the motor is variable, and the valve plate and the cylinder body are not subjected to position difference in the change direction of the inclination angle. Meanwhile, in order to avoid clamping stagnation of the connecting piece in the moving process, the connecting piece, the valve plate and the cylinder body are ensured to be flexibly matched, and two ends of the connecting piece are respectively in clearance fit with the valve plate and the cylinder body; therefore, the connecting piece can rapidly and synchronously drive the valve plate and the cylinder body to change positions.
According to the utility model, the connecting piece is axially arranged, so that the flow distribution surfaces of the cylinder body and the flow distribution plate are arranged in a tight and coaxial mode, the action consistency of the cylinder body and the flow distribution plate is optimized, and the action of the cylinder body is not delayed to the flow distribution plate; because the cylinder body and the valve plate cannot have position difference, the sealing effect between the valve plate and the cylinder body cannot be affected, and the high-pressure impact hazard of high-pressure hydraulic oil leaked from the spherical valve surface of the cylinder body and the valve plate to the rubber sealing piece is reduced.
The connecting piece for connecting the valve plate and the cylinder body comprises a transmission column head penetrating through the cylinder body, a yielding ring and a ball tip penetrating through the valve plate, and the connecting piece is respectively in clearance fit with the cylinder body and the valve plate through the yielding ring.
The ball tip part arranged in the valve plate is stressed to drive the transmission column head to move, the transmission column head drives the cylinder body to synchronously move, and the connecting piece can flexibly rotate in the cylinder body and the valve plate due to the fact that the yielding ring is arranged on the connecting piece, so that clamping stagnation is avoided.
In the connecting piece for connecting the valve plate and the cylinder body, the diameter of the ball tip is smaller than the diameter of the transmission column head, and the diameter of the yielding ring gradually increases along the direction from the ball tip to the transmission column head.
In order to make the connecting piece react more sensitively, the diameter of the ball tip part is smaller, and in order to smoothly drive the cylinder body to synchronously move, the diameter of the transmission column head is larger; the part of the abdication ring, which is close to the ball tip, corresponds to the splicing position of the valve plate and the cylinder body, so that a larger gap is needed to facilitate the swinging of the connecting piece, and the transmission column head needs to have as much contact area with the cylinder body as possible so as to synchronously drive the cylinder body to swing.
In the connecting piece for connecting the valve plate and the cylinder body, the transmission column head further comprises positioning parts, and the positioning parts are two positioning planes symmetrically arranged on the side face of the transmission column head.
Preferably, the two positioning planes are perpendicular to the movement track of the connecting piece.
The transmission column cap and the cylinder body form clearance fit of the column surface and the column surface, and the positioning parts symmetrically arranged on the transmission column cap accurately position the movement of the cylinder body, so that the cylinder body and the valve plate move along the same track, and meanwhile, the occurrence of clamping stagnation is reduced.
The connecting piece for connecting the valve plate and the cylinder body further comprises a fixing sleeve matched with the ball tip, the opening end of the fixing sleeve is in clearance fit with the valve plate, and the inner diameter of the fixing sleeve is in clearance fit with the ball tip.
Because the diameter of the central hole of the valve plate is generally larger in practical application, and the diameter of the ball tip part of the connecting piece is smaller than that of the transmission column head, the fixed sleeve is matched with the cylinder body, so that the connecting piece and the cylinder body form clearance fit. The valve plate drives the connecting piece to move left and right through the fixed sleeve, and the ball tip part is in clearance fit with the inner diameter of the fixed sleeve so that the connecting piece can timely react to the movement of the valve plate; the external diameter of the fixed sleeve is connected with the valve plate, and the opening end of the fixed sleeve and the valve plate form a clearance for preventing the clamping stagnation phenomenon.
In the connecting piece for connecting the valve plate and the cylinder body, a curved surface with radian is formed between the two ends of the ball tip part, and the curved surface is in clearance fit with the inner diameter of the fixed sleeve.
Namely, the ball tip part and the inner diameter of the fixed sleeve form clearance fit between the spherical surface and the cylindrical surface, and compared with the clearance fit between the cylindrical surface and the cylindrical surface, the ball tip part is easier to react to the change of the valve plate, so that the connecting piece can be guaranteed to drive the cylinder body to move in time.
In the connecting piece for connecting the valve plate and the cylinder body, the opening end of the fixing sleeve extends to a direction far away from the connecting piece to form a fixing lug part, and the fixing lug part and the valve plate form clearance fit and are not connected with the end face of the cylinder body close to the valve plate.
The fixed lug and the movable gap are arranged to facilitate the connecting piece to swing left and right, and the fixed lug moves in a space formed by surrounding the valve plate and the cylinder body. The clearance fit of the valve plate and the fixed lug prevents the fixed sleeve from falling off, and the diameter of the central hole of the cylinder body is smaller than that of the valve plate, so that the cylinder body can limit the fixed lug to prevent larger displacement.
In the connecting piece for connecting the valve plate and the cylinder body, the length of the fixing sleeve is larger than that of the ball tip part, and the inner wall of the fixing sleeve is provided with the abdication part which is matched with the abdication ring.
In order to prevent the ball tip from falling off, the length of the fixing sleeve is greater than the length of the ball tip, so that one end part of the fixing sleeve provided with the fixing lug is matched with the yielding ring, and the inner wall of the fixing sleeve yields in the direction away from the ball tip to form the yielding part so as to provide a larger movable gap for the yielding ring.
A port plate assembly comprising a port plate and a connecting member connecting the port plate and the cylinder, the connecting member being any one of the connecting members described above for connecting the port plate and the cylinder.
In the valve plate assembly, the connecting piece is arranged in the central hole of the valve plate in a penetrating mode, and one end, close to the cylinder body, of the central hole is recessed inwards to form the limiting groove.
The clearance fit is formed with fixed ear in the spacing groove, and the clearance of the internal diameter in spacing groove and the external diameter in fixed ear gives the sufficient travel space of fixed ear to the valve plate is when the transition between maximum flow and minimum flow, and the connecting piece can have accurate position reaction.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the connecting piece is axially arranged, so that the flow distribution surfaces of the cylinder body and the flow distribution plate are arranged in a tight and coaxial mode, the action consistency of the cylinder body and the flow distribution plate is optimized, and the action of the cylinder body is not delayed to the flow distribution plate; because the cylinder body and the valve plate cannot have position difference, the sealing effect between the valve plate and the cylinder body cannot be affected, and the high-pressure impact hazard of high-pressure hydraulic oil leaked from the spherical valve surface of the cylinder body and the valve plate to the rubber sealing piece is reduced.
(2) In the utility model, the ball tip part arranged in the valve plate is stressed to drive the transmission column head to move, and the transmission column head further drives the cylinder body to synchronously move, and the connecting piece can flexibly rotate in the cylinder body and the valve plate due to the fact that the connecting piece is provided with the abdicating ring, so that the clamping stagnation is avoided.
(3) In the utility model, in order to make the reaction of the connecting piece more sensitive, the diameter of the ball tip part is smaller, and in order to smoothly drive the cylinder body to synchronously move, the diameter of the transmission column head is larger; the part of the abdication ring, which is close to the ball tip, corresponds to the splicing position of the valve plate and the cylinder body, so that a larger gap is needed to facilitate the swinging of the connecting piece, and the transmission column head needs to have as much contact area with the cylinder body as possible so as to synchronously drive the cylinder body to swing.
(4) According to the utility model, the transmission column head and the cylinder body form clearance fit between the column surface and the column surface, and the symmetrically arranged positioning parts of the transmission column head accurately position the movement of the cylinder body, so that the cylinder body and the valve plate move along the same track, and meanwhile, the occurrence of clamping stagnation is reduced.
(5) In the utility model, because the diameter of the central hole of the valve plate is generally larger in practical application, and the diameter of the ball tip part of the connecting piece is smaller than the diameter of the transmission column head, the fixed sleeve is matched with the cylinder body, so that the connecting piece and the cylinder body form clearance fit. The valve plate drives the connecting piece to move left and right through the fixed sleeve, and the ball tip part is in clearance fit with the inner diameter of the fixed sleeve so that the connecting piece can timely react to the movement of the valve plate; the external diameter of the fixed sleeve is connected with the valve plate, and the opening end of the fixed sleeve and the valve plate form a clearance for preventing the clamping stagnation phenomenon.
(6) In the utility model, the ball tip part and the inner diameter of the fixed sleeve form clearance fit of the spherical surface and the cylindrical surface, and compared with the clearance fit of the cylindrical surface and the cylindrical surface, the ball tip part is easier to react to the change of the valve plate, thereby ensuring that the connecting piece can drive the cylinder body to move in time.
(7) In the utility model, the fixed lug and the movable gap are arranged to facilitate the connecting piece to swing left and right, and the fixed lug moves in the space formed by the closure of the valve plate and the cylinder body. The clearance fit of the valve plate and the fixed lug prevents the fixed sleeve from falling off, and the diameter of the central hole of the cylinder body is smaller than that of the valve plate, so that the cylinder body can limit the fixed lug to prevent larger displacement.
(8) In the utility model, in order to prevent the ball tip from falling off, the length of the fixing sleeve is longer than that of the ball tip, so that one end part of the fixing sleeve provided with the fixing lug is matched with the abdication ring, and the inner wall of the fixing sleeve abdies in the direction away from the ball tip to form the abdication part, so as to provide a larger movable gap for the abdication ring.
(9) In the utility model, the limiting groove and the fixing lug form clearance fit, and the clearance between the inner diameter of the limiting groove and the outer diameter of the fixing lug gives enough moving space for the fixing lug, so that the connecting piece can accurately perform position reaction when the valve plate changes between the maximum flow and the minimum flow.
Drawings
FIG. 1 is a schematic view of the structure of the connecting piece for connecting a port plate and a cylinder block of the present utility model;
FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;
FIG. 3 is a schematic view of the ball tip portion of FIG. 1;
FIG. 4 is a schematic cross-sectional view of FIG. 1;
fig. 5 is a schematic cross-sectional view of a port plate assembly of the present utility model;
FIG. 6 is a schematic structural view of a retaining sleeve according to the present utility model;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
FIG. 8 is a schematic view of a connector of the present utility model including a retaining sleeve;
fig. 9 is a schematic cross-sectional view of fig. 8.
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the attached drawings and the detailed description.
Example 1
As shown in fig. 1, 2, 3 and 4, the present embodiment provides a connecting member for connecting a port plate and a cylinder block. The connecting piece 1 comprises a transmission column head 11 penetrating through the cylinder body 2, a yielding ring 12 and a ball tip 13 penetrating through the valve plate 3, wherein the diameter of the ball tip 13 is smaller than that of the transmission column head 11, and the diameter of the yielding ring 12 gradually increases along the direction of the ball tip 13 to the transmission column head 11. The driving column head 11 further comprises a positioning part 111, wherein the positioning part 111 is two positioning planes symmetrically arranged on the side surface of the driving column head 11, and the two positioning planes are perpendicular to the moving track of the connecting piece 1.
Referring to fig. 5, a driving column head 11 is disposed in a central hole of the cylinder 2, the driving column head 11 is in clearance fit with one end of the cylinder 2 close to the valve plate 3 through a yielding ring 12, and a ball tip 13 is disposed in the central hole of the valve plate 3 and in clearance fit with one end of the valve plate 3 close to the cylinder 2 through the yielding ring 12. The valve plate 3 and the cylinder body 2 are axially connected through the connecting piece 1, so that the cylinder body 2 and the valve plate 3 form a tight coaxial state, the valve plate 3 moves to drive the connecting piece 1 to move, and the connecting piece 1 simultaneously drives the cylinder body 2; namely, the ball tip 13 arranged in the valve plate 3 is stressed to drive the transmission column head 11 to move, the transmission column head 11 drives the cylinder body 2 to synchronously move, and the connecting piece 1 can flexibly rotate in the cylinder body 2 and the valve plate 3 due to the fact that the yielding ring 12 is arranged on the connecting piece 1, so that the clamping stagnation is avoided. Therefore, when the motor is varied, the movement of the cylinder 2 does not lag behind the port plate 3, and the port plate 3 and the cylinder 2 do not generate a positional difference in the direction of change of the inclination angle. Meanwhile, in order to avoid clamping stagnation of the connecting piece 1 in the moving process, the connecting piece 1, the valve plate 3 and the cylinder body 2 are ensured to be flexibly matched, and two ends of the connecting piece 1 are respectively in clearance fit with the valve plate 3 and the cylinder body 2; therefore, the connecting piece 1 can rapidly and synchronously drive the valve plate 3 and the cylinder body 2 to change positions.
The transmission column cap 11 and the cylinder body 2 form clearance fit of a cylindrical surface and a cylindrical surface, and the positioning parts 111 symmetrically arranged on the transmission column cap 11 accurately position the movement of the cylinder body 2, so that the cylinder body 2 and the valve plate 3 move along the same track, and meanwhile, the occurrence of clamping stagnation is reduced.
With reference to fig. 8 and 9, since the diameter of the central hole of the port plate 3 is generally set larger and the diameter of the ball tip 13 of the connecting element 1 is smaller than the diameter of the driving stud 11 in practical use, the fixing sleeve 14 is set to cooperate with the cylinder 2 so that the connecting element 1 forms a clearance fit with the cylinder 2. The open end of the fixed sleeve 14 forms a clearance fit with the port plate 3, and the inner diameter of the fixed sleeve 14 is in clearance fit with the ball tip 13. The ball tip 13 and the inner diameter of the fixed sleeve 14 form clearance fit between the spherical surface and the cylindrical surface, and compared with the clearance fit between the cylindrical surface and the cylindrical surface, the ball tip 13 is easier to react to the variation of the valve plate 3, so that the connecting piece 1 can timely drive the cylinder body 2 to move.
As shown in fig. 6 and 7, the open end of the fixing sleeve 14 extends away from the connecting piece 1 to form a fixing lug 141, the fixing lug 141 forms clearance fit with the valve plate 3, and is not connected with the end face of the cylinder body 2 close to the valve plate 3, and a yielding part 142 is arranged on the inner wall of the fixing sleeve 14 to be matched with the yielding ring 12. The fixing lug 141 moves in a space defined by the port plate 3 and the cylinder block 2. The clearance fit of the port plate 3 and the fixing lug 141 prevents the fixing sleeve 14 from falling off, and the cylinder 2 can restrict the fixing lug 141 from larger displacement because the diameter of the center hole of the cylinder 2 is smaller than that of the center hole of the port plate 3. The inner wall of the fixing sleeve 14 is abducted away from the ball tip portion 13 to form an abdication portion 142, so as to provide a larger moving gap for the abdication ring 12.
The working principle of the connecting piece for connecting the valve plate and the cylinder body in the embodiment is as follows: the valve plate 3 drives the connecting piece 1 to move left and right through the fixed sleeve 14, and the ball tip part 13 is in clearance fit with the inner diameter of the fixed sleeve 14 so that the connecting piece 1 can timely react to the movement of the valve plate 3; the outer diameter of the fixed sleeve 14 is connected with the valve plate 3, and the opening end of the fixed sleeve 14 and the valve plate 3 form a clearance fit to prevent the clamping stagnation phenomenon; the transmission column head 11 and the cylinder body 2 form clearance fit of the cylindrical surface and the cylindrical surface, and the positioning parts 111 symmetrically arranged on the transmission column head 11 accurately position the movement of the cylinder body 2, so that the cylinder body 2 and the valve plate 3 synchronously move in the same track; the connecting piece 1 is axially arranged, so that the flow distribution surfaces of the cylinder body 2 and the flow distribution plate 3 are arranged in a tight and coaxial mode, the action consistency of the cylinder body 2 and the flow distribution plate 3 is optimized, and the action of the cylinder body 2 is not delayed to the flow distribution plate 3; because the cylinder body 2 and the valve plate 3 cannot have position difference, the sealing effect between the valve plate 3 and the cylinder body 2 cannot be affected, and the damage of high-pressure hydraulic oil leaked from the spherical valve surface of the cylinder body 2 and the valve plate 3 to high-pressure impact of the rubber sealing element is reduced.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. A connecting piece for connecting valve plate and cylinder body, connecting piece (1) both ends link to each other with cylinder body (2) and valve plate (3) respectively, its characterized in that, cylinder body (2), connecting piece (1) and valve plate (3) axial link to each other, the one end of connecting piece (1) and cylinder body (2) are close to the one end clearance fit of valve plate (3), the other end and the one end clearance fit that valve plate (3) are close to cylinder body (2) of this connecting piece (1).
2. A connecting element for connecting a port plate to a cylinder according to claim 1, characterized by comprising a transmission stud (11) penetrating the cylinder (2), a yielding ring (12) and a ball tip (13) penetrating the port plate (3), the connecting element (1) being in clearance fit with the cylinder (2) and the port plate (3) respectively via the yielding ring (12).
3. A connection for connecting a port plate and a cylinder according to claim 2, characterized in that the diameter of the ball tip (13) is smaller than the diameter of the drive stud (11), and that the diameter of the yielding ring (12) increases gradually in the direction of the ball tip (13) towards the drive stud (11).
4. A connecting piece for connecting a port plate and a cylinder block according to claim 3, characterized in that the drive stud (11) further comprises a positioning portion (111), the positioning portion (111) being two positioning planes symmetrically arranged at the sides of the drive stud (11).
5. A connecting element for connecting a port plate to a cylinder as claimed in claim 3, further comprising a fixing sleeve (14) cooperating with the ball-point (13), the open end of the fixing sleeve (14) forming a clearance fit with the port plate (3), the inner diameter of the fixing sleeve (14) being in clearance fit with the ball-point (13).
6. A connecting element for connecting a port plate to a cylinder according to claim 5, characterized in that the ball-point (13) is formed between its ends with a curved surface having an arc which forms a clearance fit with the inner diameter of the stationary sleeve (14).
7. A connecting element for connecting a port plate to a cylinder according to claim 5, characterized in that the open end of the fixing sleeve (14) extends away from the connecting element (1) to form a fixing lug (141), said fixing lug (141) forming a clearance fit with the port plate (3) and being out of contact with the end face of the cylinder (2) adjacent to the port plate (3).
8. The connecting piece for connecting a valve plate and a cylinder body according to claim 5, wherein the length of the fixing sleeve (14) is larger than that of the ball tip part (13), and a yielding part (142) is arranged on the inner wall of the fixing sleeve (14) and matched with the yielding ring (12).
9. A port plate assembly comprising a port plate (3) and a connecting piece (1) connecting the port plate (3) and a cylinder (2), characterized in that the connecting piece (1) is a connecting piece (1) for connecting the port plate (3) and the cylinder (2) according to any one of claims 1-7.
10. Valve plate assembly according to claim 9, characterized in that the connecting piece (1) is arranged in the central hole of the valve plate (3) in a penetrating way, and the end of the central hole, which is close to the cylinder body (2), is recessed inwards to form a limit groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338315.6U CN219197560U (en) | 2022-12-09 | 2022-12-09 | Connecting piece for connecting valve plate and cylinder body and valve plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338315.6U CN219197560U (en) | 2022-12-09 | 2022-12-09 | Connecting piece for connecting valve plate and cylinder body and valve plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219197560U true CN219197560U (en) | 2023-06-16 |
Family
ID=86724217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223338315.6U Active CN219197560U (en) | 2022-12-09 | 2022-12-09 | Connecting piece for connecting valve plate and cylinder body and valve plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219197560U (en) |
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2022
- 2022-12-09 CN CN202223338315.6U patent/CN219197560U/en active Active
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