Heat-resistant polyethylene ball valve capable of controlling flow

Abstract

The utility model discloses a heat-resistant polyethylene ball valve capable of controlling flow, which belongs to the technical field of ball valves and is characterized in that a ball valve core is connected in a ball valve shell in a lifting manner, a lifting shell is mounted on the ball valve shell, a lifting connecting piece is mounted on the ball valve core, a lifting groove is formed in the lifting shell, and the lifting connecting piece is mounted on the lifting groove. A lifting groove is formed in the ball valve shell, a lifting connecting piece is arranged in the lifting groove, racks are distributed on the lifting connecting piece, a driving piece is installed in the lifting groove, a rotating rod is installed at the output end of the driving piece, a half gear is arranged on the rotating rod in a sleeving mode, and a lifting cover is connected to the joint of the lifting shell and the ball valve shell in a telescopic mode. The driving piece drives the rotating rod and the half gear to rotate, the half gear rotates to drive the lifting connecting piece to ascend and descend, the ball valve element is driven to ascend and descend in the ascending and descending process of the lifting connecting piece, the flow of the ball valve is adjusted according to the ascending and descending height of the ball valve element, and the functions of height adjustment, flow adjustment, leakage prevention and lifting connection are achieved.

Description

Technical Field

[0001] The utility model relates to a heat-resistant polyethylene ball valve capable of controlling flow, belonging to the technical field of ball valves. Background Art

[0002] For example, the ball valve disclosed in announcement number: CN202561093U, in particular, a polyethylene (PE) pipeline ball valve and its valve ball used in the field of gas, liquid and other fluid transportation, a polyethylene ball valve, including a working cap, a valve stem, a valve body, a ball seat, a retaining ring, a ball seat sealing ring, and a valve ball. The connecting pipe is connected to the valve body, the working cap is connected to the valve ball through the valve stem, the valve ball and the ball seat sealing ring cooperate with each other to realize the opening and closing of the pipeline, and the valve ball is injection molded by engineering plastics, and the surface roughness is less than 0.2 and the roundness is less than 0.005.

[0003] Based on the search and analysis, the existing technology still has deficiencies:

[0004] The existing technology is not convenient for controlling and adjusting the flow rate, and cannot achieve the function of quantitative and constant speed drainage. Therefore, a heat-resistant polyethylene ball valve that can control the flow rate is needed to improve the above-mentioned shortcomings. Utility Model Content

[0005] The main purpose of the utility model is to provide a heat-resistant polyethylene ball valve capable of controlling flow.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] A heat-resistant polyethylene ball valve capable of controlling flow rate, comprising a ball valve housing for control;

[0008] A ball valve core is arranged in the ball valve housing, a lifting connection piece is installed on the ball valve core, a rack is arranged on one side of the lifting connection piece, and the ball valve core and the lifting connection piece are connected by a driving piece, a rotating rod and a half gear.

[0009] A limited folding group is installed in the ball valve housing, and connecting flange groups are installed on both sides of the ball valve housing.

[0010] Preferably, the position-limiting folding group comprises a lifting shell and a lifting cover. The lifting shell is mounted on the ball valve shell, and the lifting cover is mounted on the inner side of the ball valve shell.

[0011] Preferably, the connecting flange set includes a first connecting flange and a second connecting flange, the first connecting flange is installed on one side of the ball valve housing, and the second connecting flange is installed on the other side of the ball valve housing.

[0012] Preferably, a lifting groove is provided in the lifting shell, and a lifting cover is sleeved between the ball valve core and the lifting shell.

[0013] Preferably, the half gear and the lifting connecting member are meshed and transmission connected with each other.

[0014] Preferably, the lifting connection piece and the rack are connected in a lifting manner along the lifting housing.

[0015] Preferably, one half of the half gear is distributed with a rack.

[0016] Beneficial technical effects of the utility model:

[0017] The utility model provides a heat-resistant polyethylene ball valve with controllable flow rate, wherein a ball valve core is connected to the ball valve housing for lifting and lowering, a lifting shell is installed on the ball valve housing, a lifting connecting piece is installed on the ball valve core, a lifting slot is provided in the lifting shell, a lifting connecting piece is provided in the lifting slot, racks are distributed on the lifting connecting piece, a driving member is installed in the lifting slot, a rotating rod is installed at the output end of the driving member, a half gear is sleeved on the rotating rod, a lifting cover is telescopically connected to the connection between the lifting shell and the ball valve housing, the driving member drives the rotating rod and the half gear to rotate, the lifting connecting piece is driven to lift and lower through the rotation of the half gear, and the ball valve core is driven to lift and lower during the lifting and lowering process of the lifting connecting piece, the flow of the ball valve is adjusted according to the height of the lifting and lowering of the ball valve core, and the functions of height adjustment, flow adjustment, leakage prevention and lifting and lowering connection are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a device of a preferred embodiment of a heat-resistant polyethylene ball valve capable of controlling flow according to the utility model;

[0019] Figure 2 It is a schematic diagram of a valve core of a preferred embodiment of a heat-resistant polyethylene ball valve capable of controlling flow according to the utility model;

[0020] Figure 3 A side view of a valve core of a preferred embodiment of a heat-resistant polyethylene ball valve capable of controlling flow according to the utility model;

[0021] Figure 4 It is a schematic diagram of the shell of a preferred embodiment of a heat-resistant polyethylene ball valve capable of controlling flow according to the utility model.

[0022] In the figure: 1. ball valve core; 2. lifting shell; 3. lifting groove; 4. lifting connection piece; 5. rack; 6. driving piece; 7. rotating rod; 8. half gear; 9. lifting cover; 10. first connecting flange; 11. second connecting flange; 12. ball valve shell. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0024] like Figure 1 - Figure 4 As shown, a heat-resistant polyethylene ball valve capable of controlling flow provided in this embodiment includes a ball valve housing 12 for control;

[0025] A ball valve core 1 is provided in the ball valve housing 12, a lifting connection member 4 is installed on the ball valve core 1, a rack 5 is distributed on one side of the lifting connection member 4, and the ball valve core 1 and the lifting connection member 4 are driven and connected by a driving member 6, a rotating rod 7 and a half gear 8;

[0026] A limited position folding group is installed in the ball valve housing 12, and connecting flange groups are installed on both sides of the ball valve housing 12.

[0027] The position-limiting folding group comprises a lifting shell 2 and a lifting cover 9 . The lifting shell 2 is mounted on the ball valve shell 12 , and the lifting cover 9 is mounted inside the ball valve shell 12 .

[0028] The connecting flange set includes a first connecting flange 10 and a second connecting flange 11 . The first connecting flange 10 is installed on one side of the ball valve housing 12 , and the second connecting flange 11 is installed on the other side of the ball valve housing 12 .

[0029] A lifting groove 3 is provided in the lifting shell 2 , and a lifting cover 9 is sleeved between the ball valve core 1 and the lifting shell 2 .

[0030] The half gear 8 and the lifting connecting member 4 are meshed and transmission connected with each other.

[0031] The lifting connection member 4 and the rack 5 are connected in a lifting manner along the lifting housing 2 .

[0032] A rack is distributed on one half of the half gear 8 .

[0033] like Figure 1 - Figure 4As shown, the working process of a heat-resistant polyethylene ball valve with controllable flow provided in this embodiment is as follows: a ball valve core 1 is connected to the ball valve housing 12 for lifting and lowering, a lifting housing 2 is installed on the ball valve housing 12, a lifting connecting piece 4 is installed on the ball valve core 1, a lifting groove 3 is opened in the lifting housing 2, a lifting connecting piece 4 is arranged in the lifting groove 3, a rack 5 is distributed on the lifting connecting piece 4, a driving member 6 is installed in the lifting groove 3, a rotating rod 7 is installed at the output end of the driving member 6, a half gear 8 is sleeved on the rotating rod 7, a lifting cover 9 is telescopically connected to the connection between the lifting housing 2 and the ball valve housing 12, the driving member 6 drives the rotating rod 7 and the half gear 8 to rotate, the rotation of the half gear 8 drives the lifting connecting piece 4 to lift and lower, and drives the ball valve core 1 to lift and lower during the lifting and lowering process of the lifting connecting piece 4.

[0034] Embodiment 1

[0035] like Figure 1 - Figure 4 As shown, a ball valve core 1 is connected to the ball valve housing 12 for lifting and lowering, a lifting housing 2 is installed on the ball valve housing 12, a lifting connecting piece 4 is installed on the ball valve core 1, a lifting groove 3 is opened in the lifting housing 2, a lifting connecting piece 4 is arranged in the lifting groove 3, racks 5 are distributed on the lifting connecting piece 4, a driving member 6 is installed in the lifting groove 3, a rotating rod 7 is installed at the output end of the driving member 6, a half gear 8 is sleeved on the rotating rod 7, a lifting cover 9 is telescopically connected to the connection between the lifting housing 2 and the ball valve housing 12, the driving member 6 drives the rotating rod 7 and the half gear 8 to rotate, and the lifting connecting piece 4 is driven to lift and lower through the rotation of the half gear 8, and the ball valve core 1 is driven to lift and lower during the lifting and lowering process of the lifting connecting piece 4, and the flow of the ball valve is adjusted according to the height of the lifting and lowering of the ball valve core 1, so as to realize the functions of height adjustment, flow adjustment, leakage prevention and lifting and lowering connection.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A heat-resistant polyethylene ball valve capable of controlling flow, comprising a ball valve housing (12) for control; Features: A ball valve core (1) is arranged in a ball valve housing (12), a lifting connection piece (4) is installed on the ball valve core (1), a rack (5) is arranged on one side of the lifting connection piece (4), and the ball valve core (1) and the lifting connection piece (4) are connected by a driving piece (6), a rotating rod (7) and a half gear (8); A limited position folding group is installed in the ball valve housing (12), and connecting flange groups are installed on both sides of the ball valve housing (12).

2. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 1, characterized in that: The position-limiting folding group comprises a lifting shell (2) and a lifting cover (9); the lifting shell (2) is mounted on a ball valve shell (12); and the lifting cover (9) is mounted inside the ball valve shell (12).

3. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 2, characterized in that: The connecting flange group comprises a first connecting flange (10) and a second connecting flange (11), wherein the first connecting flange (10) is installed on one side of a ball valve housing (12), and the second connecting flange (11) is installed on the other side of the ball valve housing (12).

4. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 3, characterized in that: A lifting groove (3) is provided in the lifting shell (2), and a lifting cover (9) is sleeved between the ball valve core (1) and the lifting shell (2).

5. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 4, characterized in that: The half gear (8) and the lifting connecting member (4) are meshed and transmission-connected with each other.

6. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 5, characterized in that: The lifting connection member (4) and the rack (5) are connected in a lifting manner along the lifting shell (2).

7. A heat-resistant polyethylene ball valve capable of controlling flow according to claim 6, characterized in that: A rack is distributed on one half of the half gear (8).

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