Gate valve with anti-freezing function

Abstract

The utility model relates to the technical field of sluice valves, in particular to a sluice valve with an anti-freezing function, which comprises a valve body, a valve seat and a valve rod which are arranged in a matched mode, the surface of the valve body is fixedly connected with an inner heating lining plate, the valve body is sleeved with an outer heat preservation layer, and the surface of the outer heat preservation layer is fixedly connected with an outer protection shell. A control mechanism is fixedly connected to the surface of the outer heat preservation layer, a drainage head is fixedly connected to the bottom end of the outer heat preservation layer, a flow guide rod is embedded in the drainage head, and the flow guide rod is fixedly connected with the inner heating lining plate and the valve body. The temperature and water pressure of a water source entering the valve body are detected through a temperature probe and a water pressure sensing mechanism, and the effect of heat preservation and moisture prevention between the inner heating lining plate and the valve body is achieved through an outer heat preservation layer. And by arranging the drainage head as a soft rubber head, the situation that water drops on the surface of the valve body 1 are frozen due to low temperature influence when being drained can be effectively avoided, and the effective drainage effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, concretely relates to a gate valve with anti -freezing function. BACKGROUND

[0002] Gate valve is a shutoff piece gate board, the movement direction of gate board is perpendicular to fluid direction, gate valve can only be fully opened and closed, and cannot be adjusted and throttled, and the gate valve is sealed through the contact between the valve seat and the gate board, and metal material is usually built up on the sealing surface to increase the wear resistance, such as 1Cr13, STL6, stainless steel, etc., and the gate board has rigid gate board and elastic gate board.

[0003] At present, when the temperature is low, the gate valve may be frozen or even broken during use, thereby affecting the subsequent use of the gate valve, in view of the problem, the existing method is to set a heating pipe on the surface of the gate valve to ensure the use temperature and avoid the situation that the gate valve cannot be used due to low temperature, but the problem is that:

[0004] In cold weather, water may accumulate on the surface of the valve due to temperature difference, and the residual water on the surface may freeze when the temperature is low, thereby causing the valve to crack and cannot be used in time, affecting the transportation, and the existing method of setting a heating pipe on the surface of the gate valve cannot well maintain the heat preservation effect of the gate valve during actual use, the heat generated by frequently opening the heating pipe is easily lost, the anti-freezing effect is poor, and the use is inconvenient.

[0005] Therefore, the utility model provides a gate valve with anti -freezing function. UTILITY MODEL CONTENTS

[0006] In view of the defects in the prior art, the utility model provides a gate valve with anti -freezing function, which can solve the problems that:

[0007] In cold weather, water may accumulate on the surface of the valve due to temperature difference, and the residual water on the surface may freeze when the temperature is low, thereby causing the valve to crack and cannot be used in time, affecting the transportation;

[0008] During actual use, the heat preservation effect of the gate valve cannot be well maintained, the heat generated by frequently opening the heating pipe is easily lost, the anti-freezing effect is poor, and the use is inconvenient.

[0009] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0010] The utility model provides a gate valve with anti -freezing function, including the valve body, valve seat and valve stem of matched arrangement, the surface fixed connection of valve body has inside heating lining, the outer thermal -insulation layer of valve body is equipped with, the surface fixed connection of outer thermal -insulation layer has outer protection shell, the surface fixed connection of outer thermal -insulation layer simultaneously has control mechanism, the bottom fixed connection of outer thermal -insulation layer has drainage head, the inside embedding of drainage head is provided with flow guide rod, flow guide rod is fixed connection with inside heating lining and valve body simultaneously, the inside fixed connection of one end of valve body has temperature probe and water pressure sensing mechanism.

[0011] Further, the inside heating lining is arranged on the surface of the valve body in an arc strip shape and is provided with 1-3 groups, is arranged as an electric heating lining, the inside heating lining is connected with the control mechanism, the connecting wires between the two pass through the outer thermal -insulation layer and the outer protection shell, and the connecting wires and the outer thermal -insulation layer and the outer protection shell are sealed by a glue layer.

[0012] Further, the temperature probe and the water pressure sensing mechanism are arranged in an up-down position and are arranged in the water inlet end of the valve body, and the two are connected with the control mechanism, and the wires required for connecting the two with the control mechanism are arranged in the same way as the connecting wires between the inside heating lining and the control mechanism.

[0013] Further, the outer thermal -insulation layer is sealingly arranged on the surface of the valve body, and a polyurethane thermal -insulation layer is arranged.

[0014] Further, the drainage head is arranged as a soft rubber conical head, vertically penetrates the outer protection shell and the outer thermal -insulation layer, and is located at the bottom end of the water outlet end of the valve body.

[0015] Further, the flow guide rod is made of copper and is vertically arranged, and a group of connecting branches is arranged on the side of the flow guide rod facing the inside heating lining, the branches are fixedly connected with the inside heating lining, and the top end of the flow guide rod is in contact with the surface of the valve body.

[0016] From the above technical solution, the utility model has the beneficial effects of:

[0017] 1. The inside heating lining can heat the surface of the valve body, avoiding the situation that the valve body cannot be used due to low temperature.

[0018] 2. The temperature probe and the water pressure sensing mechanism can detect the temperature and water pressure of the water source entering the valve body.

[0019] 3. The outer thermal -insulation layer can insulate and prevent moisture between the inside heating lining and the valve body.

[0020] 4. The utility model discloses a drain head of soft rubber head can effectively avoid the situation of freezing when the water drop on the surface of valve body 1 is discharged under the influence of low temperature, reach effective drainage effect, through the flow guide rod, the water drop remaining on the surface of valve body is discharged, and the anti-freezing effect of drain head is played simultaneously.

[0021] When the device is used, the inner heating lining cooperates with the outer thermal insulation layer to form a heat preservation space outside the valve body, so that the heat preservation heat is not lost quickly, and the inner heating lining does not need to be frequently opened, and the anti-freezing effect is good. DRAWINGS

[0022] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0023] Figure 1 It is the overall structure side view of the utility model;

[0024] Figure 2 It is the structure of the utility model in Figure 1 The structure of A in the middle is enlarged;

[0025] Figure 3 It is the internal structure connection front view of the valve body in the utility model.

[0026] Reference signs:

[0027] 1, valve body;2, valve seat;3, valve stem;4, outer thermal insulation layer;5, inner heating lining;6, control mechanism;7, outer protective shell;8, drain head;9, flow guide rod;10, temperature probe;11, water pressure sensing mechanism. Specific embodiments

[0028] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, so only as an example, and cannot limit the protection scope of the utility model.

[0029] Reference Figures 1-3As shown, a gate valve with anti-freezing function, including a valve body 1, a valve seat 2 and a valve stem 3, the surface of the valve body 1 is fixedly connected with an inner heating lining plate 5, the valve body 1 is provided with an outer thermal insulation layer 4, the surface of the outer thermal insulation layer 4 is fixedly connected with an outer protective shell 7, the surface of the outer thermal insulation layer 4 is fixedly connected with a control mechanism 6, the bottom end of the outer thermal insulation layer 4 is fixedly connected with a drain head 8, the inside of the drain head 8 is embedded with a flow guide rod 9, the flow guide rod 9 is fixedly connected with the inner heating lining plate 5 and the valve body 1, one end of the valve body 1 is fixedly connected with a temperature probe 10 and a water pressure sensing mechanism 11.

[0030] In the embodiment of the utility model, the inner heating lining plate 5 is arc strip support plate and is set on the surface of valve body 1 with 1-3 groups, is set as electric heating lining plate, the inner heating lining plate 5 is connected with control mechanism 6, and the connecting wire between the two passes through outer thermal insulation layer 4 and outer protective shell 7 and is set, and the connecting wire and outer thermal insulation layer 4 and outer protective shell 7 are sealed by adhesive layer, the inner heating lining plate 5 is heated from the surface of valve body 1, which avoids the situation that it cannot be used due to low temperature.

[0031] The temperature probe 10 and the water pressure sensing mechanism 11 are arranged in an up-down manner and are arranged in the water inlet end of the valve body 1, and the two are connected with the control mechanism 6, and the wires required for the connection of the two and the control mechanism 6 are arranged in the same way as the connection wires between the inner heating lining plate 5 and the control mechanism 6, and the temperature probe 10 and the water pressure sensing mechanism 11 detect the temperature and water pressure of the water source entering the valve body 1.

[0032] When the external water source flows into the valve body 1, the temperature probe 10 detects the temperature of the water source, and the inner heating lining plate 5 is opened and closed under the control of the control mechanism 6 according to the temperature of the water source, and the water pressure sensing mechanism 11 detects the internal water pressure during the use of the valve body 1.

[0033] The two ends of the outer thermal insulation layer 4 and the surface of the valve body 1 are sealed, and a polyurethane insulation layer is arranged, and the outer thermal insulation layer 4 can insulate and prevent moisture between the inner heating lining plate 5 and the valve body 1.

[0034] The drain head 8 is a soft rubber conical head, which is vertically arranged through the outer protective shell 7 and the outer thermal insulation layer 4 and is located at the bottom end of the water outlet end of the valve body 1, and the flow guide rod 9 is a copper rod and is vertically arranged, and one side of the flow guide rod 9 extending towards the inner heating lining plate 5 is provided with a group of connecting support rods, and the support rods are fixedly connected with the inner heating lining plate 5, and the top end of the flow guide rod 9 is in contact with the surface of the valve body 1, the drain head 8 made of soft rubber can effectively prevent the water droplets on the surface of the valve body 1 from freezing due to low temperature when being discharged, and effectively discharge the water, and the flow guide rod 9 can guide the residual water droplets on the surface of the valve body 1 out and prevent the drain head 8 from freezing.

[0035] After the valve body 1 is heated by the inner heating lining plate 5, water drops remaining on the surface of the valve body 1 flow downward along the surface of the valve body 1 and are collected on the flow guide rod 9, and then are discharged through the drain head 8; in this process, heat generated by the inner heating lining plate 5 is conducted through the flow guide rod 9, so that the position of the drain head 8 is kept at a certain temperature, thereby avoiding freezing of the drain head 8 due to low temperature and affecting drainage, and meanwhile the flow guide rod 9 can guide the water drops on the surface of the valve body 1, thereby avoiding the water drops remaining on the surface of the valve body 1.

[0036] The control mechanism 6 comprises a single-chip microcomputer, a display screen, a storage battery and the like.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A gate valve with antifreeze function, characterized by: The invention comprises a valve body (1), a valve seat (2) and a valve stem (3) which are matched with each other. The surface of the valve body (1) is fixedly connected to an internal heating lining plate (5). The outer shell of the valve body (1) is provided with an outer thermal insulation layer (4). The surface of the outer thermal insulation layer (4) is fixedly connected to an outer protective shell (7). The surface of the outer thermal insulation layer (4) is also fixedly connected to a control mechanism (6). The bottom end of the outer thermal insulation layer (4) is fixedly connected to a drainage head (8). A guide rod (9) is embedded in the drainage head (8). The guide rod (9) is fixedly connected to the internal heating lining plate (5) and the valve body (1). One end of the valve body (1) is fixedly connected to a temperature probe (10) and a water pressure sensing mechanism (11).

2. The gate valve with antifreeze function according to claim 1, characterized in that: The inner heating lining (5) is an arc-shaped strip-shaped support plate that is attached to the surface of the valve body (1) and is provided in 1-3 groups. It is provided as an electric heating lining. The inner heating lining (5) is connected to the control mechanism (6) at the same time. The connecting wire between the two passes through the outer insulation layer (4) and the outer protective shell (7). The connecting wire and the outer insulation layer (4) and the outer protective shell (7) are sealed by a glue layer.

3. The gate valve with antifreeze function according to claim 1, characterized in that: The temperature probe (10) and the water pressure sensing mechanism (11) are arranged in an upper and lower position and are arranged inside the water inlet end of the valve body (1). Both are connected to the control mechanism (6) at the same time, and the wires required for connecting the two to the control mechanism (6) are arranged in the same manner as the connecting wires between the internal heating lining plate (5) and the control mechanism (6).

4. The gate valve with antifreeze function according to claim 1, characterized in that: The two ends of the outer thermal insulation layer (4) and the surface of the valve body (1) are sealed, and a polyurethane thermal insulation layer is provided.

5. The gate valve with antifreeze function according to claim 1, characterized in that: The drainage head (8) is configured as a soft rubber conical head, which vertically penetrates the outer protective shell (7) and the outer insulation layer (4) and is located at the bottom end of the water outlet of the valve body (1).

6. The gate valve with antifreeze function according to claim 1, characterized in that: The guide rod (9) is configured as a copper rod, which is vertically arranged as a whole. A group of connecting rods are simultaneously extended toward one side of the inner heating lining (5). The supporting rods are fixedly connected to the inner heating lining (5), and the top end of the guide rod (9) is in contact with the surface of the valve body (1).

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