阅读说明：本技术 一种弹簧管防冻压力表 (Spring tube anti-freezing pressure gauge ) 是由 张剑国 于 2021-09-06 设计创作，主要内容包括：本发明属于压力表领域,尤其是涉及一种弹簧管防冻压力表,包括表头,所述表头底端连通设有进水管,所述进水管上固定连接有箱体,所述箱体侧壁固定连接有温度传感器,所述箱体内设有空腔,所述箱体外侧壁上固定连接有微型驱动电机,所述微型驱动电机输出端固定连接有转动杆,所述转动杆上啮合连接有第一蜗轮,所述第一蜗轮固定连接有竖杆。本发明通过设置发热机构,便于实现对进水管的加热作用,防止由于水温过低而造成压力表的内部出现结冰现象,造成压力表的失灵。(The invention belongs to the field of pressure meters, and particularly relates to a spring tube anti-freezing pressure meter which comprises a meter head, wherein the bottom end of the meter head is communicated with a water inlet pipe, a box body is fixedly connected onto the water inlet pipe, a temperature sensor is fixedly connected onto the side wall of the box body, a cavity is arranged in the box body, a micro driving motor is fixedly connected onto the outer side wall of the box body, the output end of the micro driving motor is fixedly connected with a rotating rod, a first worm wheel is meshed and connected onto the rotating rod, and a vertical rod is fixedly connected onto the first worm wheel. The heating mechanism is arranged, so that the heating effect on the water inlet pipe is convenient to realize, and the phenomenon that the interior of the pressure gauge is frozen due to the fact that the water temperature is too low is prevented, and the pressure gauge fails.)

1. The utility model provides a spring tube anti-freezing pressure gauge, includes gauge outfit (1), its characterized in that, gauge outfit (1) bottom intercommunication is equipped with inlet tube (11), fixedly connected with box (12) on inlet tube (11), be equipped with cavity (13) in box (12), fixedly connected with micro-driving motor (14) on box (12) lateral wall, micro-driving motor (14) output end fixedly connected with dwang (15), meshing connection has first worm wheel (16) on dwang (15), first worm wheel (16) fixedly connected with montant (17), montant (17) bottom is connected with cavity (13) bottom wall rotation, montant (17) top fixedly connected with second bevel gear (18), second bevel gear (18) meshing connection has third bevel gear (19), third bevel gear (19) fixedly connected with first horizontal pole (2), the heating device is characterized in that the two ends of the first cross rod (2) are rotatably connected with the inner wall of the cavity (13), an eccentric rotating wheel (21) is fixedly connected onto the first cross rod (2), a connecting rod (22) is rotatably connected onto the eccentric rotating wheel (21), a transverse plate (23) is rotatably connected onto the connecting rod (22), a second cross rod (24) is rotatably connected onto the midpoint position of the transverse plate (23), the two ends of the second cross rod (24) are fixedly connected with the inner wall of the cavity (13), one section of the transverse plate (23) away from the connecting rod (22) is rotatably connected with a water pressing mechanism (20), the water pressing mechanism (20) is communicated with a heating box (3), a heating mechanism (31) is arranged in the heating box (3), a rotating mechanism (4) is arranged on one side of the heating mechanism (31), the rotating mechanism (4) is matched with the heating mechanism (31) for use, and a transmission mechanism (5) is arranged on the rotating mechanism (4), the transmission mechanism (5) is matched with the rotating mechanism (4) for use.

2. The bourdon tube antifreeze pressure gauge according to claim 1, wherein the water pressing mechanism (20) comprises a pressing rod (25), an L-shaped water pipe (26) and a short pipe (27), the pressing rod (25) is slidably connected with the L-shaped water pipe (26), one end of the L-shaped water pipe (26) far away from the pressing rod (25) is communicated with the water inlet pipe (11), one end of the L-shaped water pipe (26) close to the pressing rod (25) is communicated with the short pipe (27), and the short pipe (27) is communicated with the heating box (3).

3. The bourdon tube antifreezing pressure gauge according to claim 1, wherein the heat generating mechanism (31) comprises a cup-shaped hopper (32), a hexagonal block (33), a small hopper (34) and a horizontal rotating rod (35), the cup-shaped hopper (32) is fixedly connected with the inner wall of the cavity (13), the horizontal rotating rod (35) is arranged in the cup-shaped hopper (32) and is rotatably connected with the inner wall of the cup-shaped hopper (32), the horizontal rotating rod (35) penetrates through the center of the hexagonal block (33) and is fixedly connected with the hexagonal block (33), and the six small hoppers (34) are respectively and fixedly connected to six sides of the hexagonal block (33).

4. The bourdon tube antifreezing pressure gauge according to claim 1, wherein the rotation mechanism (4) comprises a circular disc (41), a grooved pulley (42) and a transmission rod (43), the grooved pulley (42) is fixedly connected with the transverse rotation rod (35) and is disposed inside the cup-shaped hopper (32), the circular disc (41) is slidably connected with the grooved pulley (42), the circular disc (41) is fixedly connected with the transmission rod (43), and one end of the transmission rod (43) far away from the circular disc (41) penetrates through the heating box (3) and is rotatably connected with the inner wall of the cavity (13).

5. The bourdon tube antifreezing pressure gauge according to claim 1, wherein the transmission mechanism (5) comprises a first belt pulley (51), a belt (52), a second belt pulley (53) and a transmission cross rod (54), the first belt pulley (51) is fixedly connected to the rotating rod (15), the belt (52) is sleeved on the first belt pulley (51) and the second belt pulley (53), the second belt pulley (53) is fixedly connected to the transmission cross rod (54), and one end of the transmission cross rod (54) far away from the second belt pulley (53) penetrates through the heating box (3) and extends into the heating box (3) to be fixedly connected to the circular disc (41).

6. The bourdon tube antifreezing pressure gauge according to claim 1, wherein an inlet of the water inlet tube (11) is communicated with a round ball through tube (6), a round ball (61) is disposed in the round ball through tube (6), a spring (62) is fixedly connected to a relative position of the round ball (61), and two ends of the spring (62) are fixedly connected to an inner wall of the round ball through tube (6).

7. The bourdon tube antifreezing pressure gauge according to claim 1, wherein the heating box (3) is disposed in the cavity (13), the side wall of the heating box (3) is fixedly connected with the temperature sensor (1201), the heating box (3) is fixedly connected with the filter screen (301), and the filter screen (301) is disposed at the bottom end of the cup-shaped hopper (32).

8. The bourdon tube antifreeze pressure gauge according to claim 4, wherein a vertical plate (1301) is fixedly connected to the bottom wall of the cavity (13), and the vertical plate (1301) is rotatably connected to the rotating rod (15).

9. The bourdon tube antifreeze pressure gauge according to claim 2, wherein said cup-shaped hopper (32) has a funnel shape at the bottom end and the top end, and the middle end of said cup-shaped hopper (32) has a spherical shape.

Technical Field

The invention belongs to the field of pressure gauges, and particularly relates to a spring tube anti-freezing pressure gauge.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the environmental pressure, is very common in application, almost extends to all the fields of industrial processes and scientific researches, is visible everywhere in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and the like, and is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge in the industrial process control and technical measurement processes.

However, when the existing pressure gauge works in cold winter, the water in the spring tube inside the pressure gauge frequently melts → freezes, the shape of the spring tube inside the pressure gauge is further expanded by ice to deform, and the spring tube of the pressure gauge is damaged seriously, so that accidents are caused, and great troubles are brought to common use.

Disclosure of Invention

The invention aims to solve the problems and provides an antifreezing pressure gauge with a spring tube.

In order to achieve the purpose, the invention adopts the following technical scheme: a spring tube anti-freezing pressure gauge comprises a gauge head, wherein a water inlet tube is communicated with the bottom end of the gauge head, a box body is fixedly connected onto the water inlet tube, a cavity is arranged in the box body, a micro driving motor is fixedly connected onto the outer side wall of the box body, a rotating rod is fixedly connected onto the output end of the micro driving motor, a first worm wheel is meshed and connected onto the rotating rod, a vertical rod is fixedly connected onto the first worm wheel, the bottom end of the vertical rod is rotatably connected with the inner bottom wall of the cavity, a second bevel gear is fixedly connected onto the top end of the vertical rod, a third bevel gear is meshed and connected onto the second bevel gear, a first cross rod is fixedly connected onto the third bevel gear, two ends of the first cross rod are rotatably connected with the inner wall of the cavity, an eccentric rotating wheel is fixedly connected onto the first cross rod, a connecting rod is rotatably connected onto the eccentric rotating wheel, a transverse plate is rotatably connected onto the connecting rod, and a second cross rod is rotatably connected onto the middle point of the transverse plate, the heating device is characterized in that two ends of the second cross rod are fixedly connected with the inner wall of the cavity, the transverse plate is far away from one section of the connecting rod and is connected with a water pressing mechanism in a rotating mode, the water pressing mechanism is communicated with a heating box, a heating mechanism is arranged in the heating box, a rotating mechanism is arranged on one side of the heating mechanism and is matched with the heating mechanism, a transmission mechanism is arranged on the rotating mechanism, and the transmission mechanism is matched with the rotating mechanism.

In foretell spring pipe manometer of preventing frostbite, the pressure water mechanism comprises depression bar, L shape water pipe and nozzle stub, depression bar and L shape water pipe sliding connection, depression bar one end and inlet tube intercommunication are kept away from to L shape water pipe, L shape water pipe is close to depression bar one end and nozzle stub intercommunication setting, the nozzle stub sets up with the case intercommunication that generates heat.

In foretell spring tube manometer of preventing frostbite, the mechanism that generates heat comprises cup type hopper, hexagonal piece, little hopper and horizontal bull stick, cup type hopper and cavity inner wall fixed connection, horizontal bull stick is established in cup type hopper and is connected with cup type hopper inner wall rotation, horizontal bull stick run through the center of hexagonal piece and with hexagonal piece fixed connection, six little hopper difference fixed connection is on six sides of hexagonal piece.

In the spring tube anti-freezing pressure gauge, the rotating mechanism comprises a circular disc, a grooved pulley and a transmission rod, the grooved pulley is fixedly connected with the transverse rotating rod and is arranged inside the cup-shaped hopper, the circular disc is slidably connected with the grooved pulley, the circular disc is fixedly connected with the transmission rod, and one end of the transmission rod, far away from the circular disc, penetrates through the heating box and is rotatably connected with the inner wall of the cavity.

In foretell spring tube manometer of preventing frostbite, drive mechanism comprises first belt pulley, belt, second belt pulley and transmission horizontal pole, first belt pulley and transmission horizontal pole fixed connection, the belt cup joints on first belt pulley and second belt pulley, second belt pulley and transmission horizontal pole fixed connection, the transmission horizontal pole is kept away from second belt pulley one end and is run through the heating chamber and extend to heating chamber in with circular dish fixed connection.

In the spring tube anti-freezing pressure gauge, the inlet of the water inlet pipe is communicated with a round ball through pipe, a round ball is arranged in the round ball through pipe, a spring is fixedly connected to the relative position of the round ball, and two ends of the spring are fixedly connected with the inner wall of the round ball through pipe.

In foretell spring tube manometer of preventing frostbite, the heating box is established in the cavity, heating box lateral wall fixedly connected with temperature sensor, the fixedly connected with filter screen in the heating box, the bottom at the cup type hopper is established to the filter screen.

In foretell spring tube manometer of preventing frostbite, diapire fixedly connected with vertical board in the cavity, vertical board rotates with the dwang to be connected.

In the spring tube antifreezing pressure gauge, the bottom end and the top end of the cup-shaped funnel are in the shape of funnels, and the middle end of the cup-shaped funnel is in the shape of a sphere.

Compared with the prior art, this manometer that prevents frostbite of spring pipe's advantage lies in:

1. the heating mechanism is arranged, so that the heating effect on the water inlet pipe is convenient to realize, and the phenomenon that the interior of the pressure gauge is frozen due to too low water temperature and the pressure gauge fails is prevented;

2. the rotating mechanism is arranged, so that the heating mechanism can heat at a constant speed conveniently, and the phenomenon that the soft plastic parts in the pressure gauge are damaged due to the fact that the heating mechanism heats too fast to cause failure of the pressure gauge is prevented;

3. the transmission mechanism is arranged, so that the rotating rod and the rotating mechanism can be driven to operate simultaneously, and only a single micro driving motor is involved in the communication process, so that the cost of equipment is reduced;

4. by arranging the spherical through pipe, the phenomenon that mechanical parts in the pressure gauge are damaged by water pressure due to large instantaneous change is conveniently avoided, and the pressure gauge is protected;

5. the filter screen is arranged, so that the calcium hydroxide precipitate after the reaction of the calcium oxide and the water can be conveniently filtered, and the calcium hydroxide precipitate is prevented from being accumulated at the bottom in the heating box to cause difficulty in later cleaning.

Drawings

FIG. 1 is a schematic structural view of a spring tube anti-freezing pressure gauge in a front view;

FIG. 2 is a schematic diagram of a side view of a heating mechanism of the anti-freezing pressure gauge with a spring tube according to the present invention;

FIG. 3 is a schematic diagram of a side view of a section of a rotation mechanism of an antifreeze manometer with a bourdon tube according to the present invention;

FIG. 4 is a schematic view of a portion of the anti-freezing pressure gauge with a bourdon tube according to the present invention;

FIG. 5 is a schematic top view of a bourdon tube antifreeze pressure gauge according to the present invention.

In the figure, 1 meter head, 11 water inlet pipe, 12 box body, 13 cavity, 1301 vertical plate, 14 micro driving motor, 15 rotating rod, 16 first worm gear, 17 vertical rod, 18 second bevel gear, 19 third bevel gear, 2 first cross rod, 20 water pressing mechanism, 21 eccentric rotating wheel, 22 connecting rod, 23 horizontal plate, 24 second cross rod, 25 pressing rod, 26L-shaped water pipe, 27 short pipe, 3 heating box, 301 filter screen, 31 heating mechanism, 32 cup-shaped hopper, 33 hexagonal block, 34 small hopper, 35 transverse rotating rod, 4 rotating mechanism, 41 circular disk, 42 grooved pulley, 43 driving rod, 5 driving mechanism, 51 first belt pulley, 52 belt, 53 second belt pulley, 54 driving cross rod, 6 circular pipe, 61 circular ball and 62 spring.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

As shown in fig. 1-5, a spring tube antifreezing pressure gauge comprises a gauge head 1, a water inlet tube 11 connected to the bottom end of the gauge head 1, a box 12 fixedly connected to the water inlet tube 11, a cavity 13 disposed in the box 12, a micro-driving motor 14 fixedly connected to the outer side wall of the box 12, a rotating rod 15 fixedly connected to the output end of the micro-driving motor 14, a first worm wheel 16 engaged with the rotating rod 15, a vertical rod 17 fixedly connected to the first worm wheel 16, a bottom end of the vertical rod 17 rotatably connected to the inner wall of the cavity 13, a second bevel gear 18 fixedly connected to the top end of the vertical rod 17, a third bevel gear 19 engaged with the second bevel gear 18, a first cross rod 2 fixedly connected to the third bevel gear 19, two ends of the first cross rod 2 rotatably connected to the inner wall of the cavity 13, an eccentric runner 21 fixedly connected to the first cross rod 2, a connecting rod 22 rotatably connected to the eccentric runner 21, and a transverse plate 23 rotatably connected to the connecting rod 22, the middle point of the transverse plate 23 is rotatably connected with a second transverse rod 24, two ends of the second transverse rod 24 are fixedly connected with the inner wall of the cavity 13, one section of the transverse plate 23, far away from the connecting rod 22, is rotatably connected with a water pressing mechanism 20, the water pressing mechanism 20 is communicated with the heating box 3, a heating mechanism 31 is arranged in the heating box 3, one side of the heating mechanism 31 is provided with a rotating mechanism 4, the rotating mechanism 4 is matched with the heating mechanism 31 for use, the rotating mechanism 4 is provided with a transmission mechanism 5, and the transmission mechanism 5 is matched with the rotating mechanism 4 for use.

The water pressing mechanism 20 is composed of a pressing rod 25, an L-shaped water pipe 26 and a short pipe 27, the pressing rod 25 is connected with the L-shaped water pipe 26 in a sliding mode, one end, far away from the pressing rod 25, of the L-shaped water pipe 26 is communicated with the water inlet pipe 11, one end, close to the pressing rod 25, of the L-shaped water pipe 26 is communicated with the short pipe 27, the short pipe 27 is communicated with the heating box 3, it needs to be explained that a piston is arranged at the bottom end of the pressing rod 25, two ends of the piston are connected with the inner side wall of the L-shaped water pipe 26 in a sliding and sealing mode, a one-way valve is arranged in the piston and only allows air or water to move from the bottom end of the piston to the top end of the piston, the pressing rod 25 moves up and down, air pressure below the piston at the bottom end of the pressing rod 25 is higher than the upper edge, water below the piston flows upwards through the one-way valve on the piston under the action of pressure difference, and the water at the bottom of the piston is pressed into the short pipe 27 and then reaches the bottom end of the heating box 3.

L shape water pipe 26 is kept away from depression bar 25 one end and is communicated with inlet tube 11, L shape water pipe 26 is close to depression bar 25 one end intercommunication and is equipped with nozzle stub 27, nozzle stub 27 intercommunication is provided with heating box 3, 3 lateral walls fixedly connected with temperature sensor 1201 of heating box, heating box 3 is established in cavity 13, be equipped with heating mechanism 31 in the heating box 3, heating mechanism 31 one side is equipped with slewing mechanism 4, slewing mechanism 4 uses with the 31 cooperation of heating mechanism, be equipped with drive mechanism 5 on the slewing mechanism 4, drive mechanism 5 uses with the 4 cooperation of slewing mechanism.

Heating mechanism 31 is by cup type hopper 32, hexagonal piece 33, little hopper 34 and horizontal bull stick 35 are constituteed, cup type hopper 32 and 13 inner wall fixed connection of cavity, horizontal bull stick 35 is established in cup type hopper 32 and is connected with cup type hopper 32 inner wall rotation, horizontal bull stick 35 run through hexagonal piece 33 the center and with hexagonal piece 33 fixed connection, six little hopper 34 respectively fixed connection on six sides of hexagonal piece 33, heating mechanism 31 can put in the calcium oxide granule that the top held to 3 bottoms of heating box, the heat is emitted after calcium oxide mixes with water, the realization heats the water in the inlet tube 11.

The rotating mechanism 4 is composed of a circular disc 41, a grooved wheel 42 and a transmission rod 43, the grooved wheel 42 is fixedly connected with the transverse rotating rod 35 and is arranged inside the cup-shaped hopper 32, the circular disc 41 is in sliding connection with the grooved wheel 42, the circular disc 41 is fixedly connected with the transmission rod 43, one end, far away from the circular disc 41, of the transmission rod 43 penetrates through the heating box 3 and is rotatably connected with the inner wall of the cavity 13, the rotating mechanism 4 can achieve intermittent rotation of the cup-shaped hopper 32, intermittent feeding of calcium oxide particles is achieved, and therefore the calcium oxide particles can be prevented from being directly and completely mixed with water to emit a large amount of heat, and internal parts of a pressure gauge are burnt out.

Drive mechanism 5 comprises first belt pulley 51, belt 52, second belt pulley 53 and transmission horizontal pole 54, first belt pulley 51 and dwang 15 fixed connection, belt 52 cup joints on first belt pulley 51 and second belt pulley 53, second belt pulley 53 and transmission horizontal pole 54 fixed connection, transmission horizontal pole 54 is kept away from second belt pulley 53 one end and is run through heating box 3 and extend to heating box 3 in with circular dish 41 fixed connection, drive mechanism 5 can realize slewing mechanism 4's operation.

The intercommunication of the inlet of the water inlet pipe 11 is provided with a round ball through pipe 6, a round ball 61 is arranged in the round ball through pipe 6, the relative position of the round ball 61 is fixedly connected with a spring 62, two ends of the spring 62 are fixedly connected with the inner wall of the round ball through pipe 6, and the round ball 61 in the round ball through pipe 6 can prevent the water pressure from instantaneously changing to cause damage to mechanical parts inside the pressure gauge.

Heating box 3 establishes in cavity 13, and heating box 3 lateral wall fixedly connected with temperature sensor 1201, the fixedly connected with filter screen 301 in heating box 3, and filter screen 301 establishes the bottom at cup type hopper 32, and filter screen 301 can filter the calcium hydroxide after calcium oxide and water reaction, prevents that the calcium hydroxide from deposiing in heating box 3 bottom.

The bottom wall fixedly connected with vertical plate 1301 in cavity 13, vertical plate 1301 and dwang 15 rotate to be connected, and vertical plate 1301 realizes the horizontal support to dwang 15, and cup type hopper 32 bottom and top are the funnel shape, and the middle end of cup type hopper 32 is the ball shape.

When the invention is used for protecting the spring tube of the pressure gauge:

when the temperature sensor 1201 senses that the temperature of the heating box 3 is equal to or lower than zero, the micro driving motor 14 is controlled to be opened, the output end of the micro driving motor 14 rotates to drive the vertical rod 17 to rotate through the rotating rod 15, the vertical rod 17 rotates to drive the third bevel gear 19 to rotate through the second bevel gear 18, the third bevel gear 19 rotates to drive the eccentric rotating wheel 21 to rotate, the eccentric rotating wheel 21 rotates to drive the connecting rod 22 to rotate, the connecting rod 22 rotates to drive the transverse plate 23 to rotate by taking the second transverse rod 24 as a circle center, the transverse plate 23 rotates to drive the pressing rod 25 to move up and down, the air pressure below the piston at the bottom end of the pressing rod 25 is higher than the upper edge, water below the piston flows upwards through the check valve on the piston under the action of pressure difference, and water at the bottom of the piston is pressed into the top end of the piston to the short pipe 27 and then reaches the bottom end in the heating box 3.

The rotating rod 15 rotates to drive the first belt pulley 51 to rotate, the first belt pulley 51 rotates to drive the second belt pulley 53 to rotate through the belt 52, the second belt pulley 53 rotates to drive the circular disc 41 to rotate through the transmission cross rod 54, the circular disc 41 rotates to drive the grooved pulley 42 to rotate, the grooved pulley 42 rotates to drive the small hopper 34 to intermittently rotate through the transmission rod 43, and the intermittent rotation of the small hopper 34 realizes that calcium oxide particles are intermittently fed into the bottom of the heating box 3.

A large amount of heat are emitted after water and calcium oxide solids are mixed, then the heating to inlet tube 11 is realized, and the spring pipe that the inside was frozen in the hot water entering manometer heats for the manometer resumes normally, and when temperature sensor 1201 sensed near heating box 3 temperature and was higher than 50, control micro drive motor 14 and close.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.