A quantitative liquid food feeder

Abstract

The present invention relates to the field of feeders, and specifically to a quantitative liquid food feeder, comprising a feeder body, a detachable storage tube is provided on the feeder body, a detachable sealing cover is provided at one end of the storage tube, a piston for pushing liquid food out is movably provided inside the storage tube, a limit sleeve is provided on the feeder body that can slide and fix the storage tube, and a first threaded rod that can drive the limit sleeve is also provided on the feeder body, and the limit sleeve is installed on the first threaded rod. The present application solves the problem that the storage part of the traditional liquid food feeder cannot be disassembled and cleaned, avoids the risk of bacteria breeding due to incomplete cleaning inside the storage tube, and improves the hygiene performance and safety of the feeder.

Description

Technical Field

[0001] The invention relates to the technical field of feeders, in particular to a quantitative liquid food feeder. Background Art

[0002] A liquid food feeder is a medical auxiliary device designed for people with special dietary needs. It is mainly composed of a precise flow control device, a feeding tube made of soft material, and an ergonomic handheld component. By accurately controlling the flow rate and flow rate of the liquid food, the risk of choking caused by excessive flow rate during feeding can be effectively avoided, ensuring the patient's safe swallowing. The material of the liquid food feeder has good biocompatibility and corrosion resistance, and can adapt to various types of liquid food. Whether it is a patient with dysphagia, a postoperative convalescent, or a patient whose eating is affected by neurological diseases, the liquid food feeder can complete the liquid food delivery scientifically and standardizedly under the operation of medical staff or nursing staff, helping patients with nutritional supplements and physical recovery.

[0003] Chinese patent publication number CN118750386A discloses a quantitative liquid food feeder, which relates to the medical field and solves the problem that the liquid food feeding device in the prior art cannot accurately adjust the liquid food feeding amount. The feeder includes a feeding cylinder and a propulsion assembly arranged in the feeding cylinder, the propulsion assembly includes a piston and a push rod connected thereto, a needle tube is provided at one end of the feeding cylinder, and a tube sleeve is provided at the other end, the free end of the push rod penetrates the tube sleeve and extends outward, the outer surface of the feeding cylinder has a complete scale along its axial direction, and the outer side of the feeding cylinder is provided with a fixed point assembly whose position is adjusted according to the required scale, and a movable assembly that can move with the piston. The liquid food feeder is fixed by adjusting the fixed point assembly to the required scale value, and then pushing the push rod to move the piston toward the needle tube, and the movable assembly moves accordingly until it contacts the fixed point assembly, thereby ensuring that the quantitative liquid food is accurately pushed out, and through the cooperation between the movable assembly and the fixed point assembly, it is ensured that the amount of liquid food pushed out each time is accurate.

[0004] In the above-mentioned liquid food feeder, the feeding bucket adopts an integral structure. However, when the feeding bucket is cleaned after use, the piston is repeatedly driven by the push rod to move inside the feeding bucket, so that the cleaning liquid contacts the inner wall of the feeding bucket and completes the cleaning. However, the above-mentioned cleaning process is not only cumbersome to operate, but also difficult to thoroughly clean the inner wall of the feeding bucket, which easily leads to food residues inside the feeding bucket, thereby increasing the risk of bacterial growth. Therefore, the present invention proposes a quantitative liquid food feeder. Summary of the invention

[0005] In view of the above problems, a quantitative liquid food feeder is provided, in which a first threaded rod is rotated to drive a limiting sleeve to fix a storage tube, so that the storage tube can be disassembled. A detachable sealing cover is provided at one end of the storage tube. When the inside of the storage tube needs to be cleaned, the user removes the sealing cover to thoroughly clean the inside of the storage tube. The problem that the storage part of the traditional liquid food feeder cannot be disassembled for cleaning is solved.

[0006] In order to solve the problems of the prior art, the present invention provides a quantitative liquid food feeder, including a feeder body, a detachable storage tube is provided on the feeder body, a detachable sealing cover is provided at one end of the storage tube, a piston for pushing the liquid food out is movably provided inside the storage tube, a limiting sleeve that can slide and fix the storage tube is provided on the feeder body, and a first threaded rod that can drive the limiting sleeve is also provided on the feeder body, and the limiting sleeve is installed on the first threaded rod.

[0007] As a technical solution of the present invention, a groove for installing a first threaded rod is provided on the feeder body, and a knob for driving the first threaded rod to rotate is provided at the bottom of the feeder body, and the knob is fixedly arranged on the extended end of the first threaded rod; limiting slide grooves are provided on both sides of the feeder body close to the groove, and the bottom of the limiting sleeve is slidably arranged inside the limiting slide groove; a threaded sleeve that can be installed on the first threaded rod is provided at the bottom of the limiting sleeve, and sliding blocks that can slide along the limiting slide groove are symmetrically arranged on both sides of the bottom of the limiting sleeve close to the threaded sleeve.

[0008] As a technical solution of the present invention, the sealing cover can close one end of the storage tube and is provided with a discharge pipe, which can extend to the outside of the feeder body. A detachable discharge pipe is provided on the output end of the sealing cover. A detachable discharge pipe is provided on the output end of the sealing cover.

[0009] As a technical solution of the present invention, a sealing ring is provided on the piston, and the sealing ring can be in close contact with the inner wall of the storage tube. An annular groove for installing the sealing ring is provided on the circumferential surface of the piston; a second rotatable threaded rod is provided on the feeder body, and a push block is movably provided at one end of the second threaded rod, which can drive the piston to move axially along the central axis of the storage tube.

[0010] As a technical solution of the present invention, the piston is provided with an adaption groove which can be adapted to the push block.

[0011] As a technical solution of the present invention, the feeder body is provided with a driven gear capable of driving the second threaded rod to move axially along the central axis of the feeder body, the driven gear is threadedly connected to the second threaded rod, the feeder body is provided with a servo motor, and the output end of the servo motor is provided with a driving gear capable of meshing with the driven gear.

[0012] As a technical solution of the present invention, a first mounting seat for installing a driven gear is provided on the feeder body, the second threaded rod can pass through the first mounting seat, a limit block is provided inside the first mounting seat to prevent the second threaded rod from rotating when moving, and a limit groove is provided on the second threaded rod for the limit block to slide.

[0013] As a technical solution of the present invention, a temperature sensing device is provided on the feeder body, and the temperature sensing device includes a base fixed on the feeder body, and a plurality of temperature sensors are provided on the base. The temperature sensors are perpendicular to the central axis of the feeder body and are used to monitor the temperature of the liquid food inside the storage tube. The base is also provided with a display that can be electrically connected to the temperature sensor and display the monitoring value.

[0014] As a technical solution of the present invention, a position monitoring device is also provided on the feeder body, and the position monitoring device includes a second mounting seat fixed on the feeder body and parallel to the central axis of the feeder body, and ultrasonic sensors are evenly distributed along the axial direction of the central axis of the feeder body on the second mounting seat, which are used to monitor the position of the piston inside the storage tube, and the second mounting seat is also provided with an indicator light that can be electrically connected to the ultrasonic sensor and can change color.

[0015] As a technical solution of the present invention, a handle is provided at the bottom of the feeder body for easy grasping and operation by the user, and a switch button for controlling the start and stop of the servo motor is provided on the handle, and the switch button is electrically connected to the servo motor.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] The present application utilizes the rotation of the first threaded rod to drive the limiting sleeve to move axially along the central axis of the feeder body, so that the limiting sleeve can fix the storage tube inside the feeder body, thereby ensuring the stability of the storage tube and facilitating the subsequent disassembly operation of the storage tube. Secondly, a removable sealing cover is provided at one end of the storage tube. When it is necessary to clean the inside of the storage tube, the user can remove the sealing cover to thoroughly clean the inside of the storage tube. This effectively solves the problem that the storage part of the traditional liquid food feeder cannot be disassembled and cleaned, avoids the risk of bacteria breeding due to incomplete cleaning of the inside of the storage tube, and improves the hygiene performance and safety of use of the feeder.

[0018] The present application utilizes a servo motor to drive the driving gear to rotate. Subsequently, the driving gear drives the driven gear to rotate synchronously through a meshing relationship. While the driven gear is rotating, the threaded hole at the center of the driven gear and the threaded matching relationship of the second threaded rod are utilized to drive the second threaded rod to move axially along the central axis direction of the feeder body. When the second threaded rod rotates, the second threaded rod drives the push block to move axially along the central axis of the feeder body through the threaded matching relationship. The push block gradually enters the interior of the storage tube until it contacts the piston inside the storage tube. At this time, the push block continues to move, pushing the piston forward in the axial direction of the storage tube, thereby squeezing the liquid food in the storage tube. The liquid food is pushed out of the storage tube by the piston.

[0019] The present application can emit ultrasonic signals through ultrasonic sensors to monitor the position change of the piston. At the same time, the second mounting base is also electrically connected to an indicator light corresponding to the number of ultrasonic sensors, and the indicator light is connected to the ultrasonic sensor. When the ultrasonic sensor detects that the position of the piston has changed, the color of the indicator light will change accordingly, thereby intuitively reflecting the current position of the piston. In addition, in order to facilitate the user to control the feeding amount, a scale mark is also provided on the second mounting base. The user can accurately judge the position of the piston by observing the color change of the indicator light and combining the scale mark, thereby achieving effective control of the feeding amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structure diagram of a quantitative liquid feeder Figure 1 .

[0021] Figure 2 This is a three-dimensional structure diagram of a quantitative liquid feeder Figure 2 .

[0022] Figure 3 It is a top view of a quantitative liquid feeder.

[0023] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0024] Figure 5 The invention discloses a stereoscopic diagram of a feeder body in a quantitative liquid food feeder.

[0025] Figure 6 The invention is an exploded view of a feeder body in a quantitative liquid feeder.

[0026] Figure 7 The invention is a stereoscopic diagram of a second threaded rod in a quantitative liquid food feeder.

[0027] Figure 8 The invention discloses a stereoscopic diagram of a limiting sleeve in a quantitative liquid food feeder.

[0028] Fig. 9 An exploded view of a storage tube in a quantitative liquid feeder.

[0029] Fig.10 yes Figure 4 Enlarged view of point B in .

[0030] Fig.11 yes Figure 4 Enlarged view of point C in the figure.

[0031] The numbers in the figure are: 1. feeder body; 11. give way groove; 12. first threaded rod; 121. knob; 13. limit slide groove; 14. first mounting seat; 141. limit block; 15. driven gear; 2. handle; 21. switch button; 3. limit sleeve; 32. threaded sleeve; 33. slider; 4. position monitoring device; 40. second mounting seat; 41. ultrasonic sensor; 42. indicator light; 5. temperature sensing device; 50. base; 51. temperature sensor; 52. display; 61. storage tube; 62. sealing cover; 63. discharge pipe; 64. piston; 641. annular groove; 642. adapter groove; 65. sealing ring; 7. servo motor; 71. driving gear; 8. second threaded rod; 81. push block; 82. limit groove. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figure 1-Figure 11 As shown, a quantitative liquid food feeder includes a feeder body 1, a detachable storage tube 61 is provided on the feeder body 1, a detachable sealing cover 62 is provided at one end of the storage tube 61, a piston 64 for pushing out the liquid food is movably provided inside the storage tube 61, a limiting sleeve 3 that can slide and fix the storage tube 61 is provided on the feeder body 1, and a first threaded rod 12 that can drive the limiting sleeve 3 is also provided on the feeder body 1, and the limiting sleeve 3 is installed on the first threaded rod 12.

[0034] First, the storage tube 61 is accurately placed inside the feeder body 1, and it is ensured that the central axis of the storage tube 61 coincides with the central axis of the feeder body 1. When the storage tube 61 is fixed, the first threaded rod 12 is rotated, and the threaded transmission principle of the first threaded rod 12 is utilized to drive the limiting sleeve 3 to move axially along the central axis of the feeder body 1. As the limiting sleeve 3 gradually approaches, when the limiting sleeve 3 contacts the storage tube 61, the limiting sleeve 3 will apply a certain axial pressure to the storage tube 61, thereby fixing the storage tube 61. When the storage tube 61 needs to be disassembled, it is only necessary to rotate the first threaded rod 12 in the opposite direction so that the first threaded rod 12 drives the limiting sleeve 3 to move in the opposite direction along the central axis of the feeder body 1 until the limiting sleeve 3 is completely separated from the storage tube 61. At this time, the storage tube 61 can be easily taken out from the inside of the feeder body 1. During the feeding process, the piston 64 will move smoothly along the central axis of the storage tube 61. Through the pushing action of the piston 64, the piston 64 will evenly push out the liquid food stored in the storage tube 61 for feeding.

[0035] See also Figure 5 , Figure 6 and Figure 8 As shown, a clearance groove 11 for installing a first threaded rod 12 is provided on the feeder body 1, and a knob 121 for driving the first threaded rod 12 to rotate is provided at the bottom of the feeder body 1, and the knob 121 is fixedly arranged on the extended end of the first threaded rod 12; limiting slide grooves 13 are provided on both sides of the feeder body 1 near the clearance groove 11, and the bottom of the limiting sleeve 3 is slidably arranged inside the limiting slide groove 13; a threaded sleeve 32 that can be installed on the first threaded rod 12 is provided at the bottom of the limiting sleeve 3, and sliders 33 that can slide along the limiting slide groove 13 are symmetrically arranged on both sides of the bottom of the limiting sleeve 3 near the threaded sleeve 32.

[0036] In the process of driving the limiting sleeve 3, the knob 121 is turned to drive the first threaded rod 12 to rotate. Specifically, when the first threaded rod 12 rotates clockwise, the first threaded rod 12 drives the threaded sleeve 32 to move along the central axis direction of the feeder body 1 through the threaded matching relationship. At this time, the movement of the threaded sleeve 32 will drive the limiting sleeve 3 to move together until the limiting sleeve 3 approaches and contacts the storage tube 61, thereby effectively fixing the storage tube 61. On the contrary, when the storage tube 61 needs to be released, the first threaded rod 12 is rotated counterclockwise, and the first threaded rod 12 continues to drive the threaded sleeve 32 to move in the opposite direction along the central axis direction of the feeder body 1 through the threaded matching relationship, and then the limiting sleeve 3 will also move away from the storage tube 61, so that the storage tube 61 can be easily taken out from the inside of the feeder body 1.

[0037] See also Fig. 9As shown, the sealing cover 62 can close one end of the storage tube 61 and is provided with a discharge tube 63, which can extend to the outside of the feeder body 1. A detachable discharge tube 63 is provided on the output end of the sealing cover 62.

[0038] By installing the discharge pipe 63 at the output end of the sealing cover 62, when the piston 64 inside the storage pipe 61 is pushed, the liquid food will be squeezed by the piston 64. The liquid food inside the storage pipe 61 is squeezed by the piston 64 and can flow out smoothly through the discharge pipe 63.

[0039] See also Figure 7 , Fig. 9 and Fig.10 As shown, a sealing ring 65 is provided on the piston 64, and the sealing ring 65 can be in close contact with the inner wall of the storage tube 61, and an annular groove 641 for installing the sealing ring 65 is provided on the circumferential surface of the piston 64; a second threaded rod 8 that can rotate is provided on the feeder body 1, and a push block 81 that can drive the piston 64 to move axially along the central axis of the storage tube 61 is movably provided at one end of the second threaded rod 8.

[0040] When the second threaded rod 8 rotates, the second threaded rod 8 drives the push block 81 to move axially along the central axis of the feeder body 1 through the threaded matching relationship, and the push block 81 gradually enters the interior of the storage tube 61 until it contacts the piston 64 inside the storage tube 61; at this time, the push block 81 continues to move, pushing the piston 64 forward along the axial direction of the storage tube 61, thereby squeezing the liquid food in the storage tube 61, and under the push of the piston 64, the liquid food is pushed out of the storage tube 61. At the same time, during the movement of the piston 64, the piston 64 drives the sealing ring 65 installed in the annular groove 641 to move along the inner wall of the storage tube 61, and the sealing ring 65 is in close contact with the inner wall of the storage tube 61 to form an effective sealing effect, thereby preventing the liquid food from sticking to the inner wall of the storage tube 61 during the movement, thereby ensuring the smooth discharge of the liquid food.

[0041] See also Figure 7 and Fig. 9 As shown, the piston 64 is provided with an adapting groove 642 that can adapt to the push block 81 .

[0042] When the push block 81 enters the storage tube 61, the push block 81 is inserted into the adapter groove 642 on the piston 64. The push block 81 cooperates with the adapter groove 642 to effectively push the piston 64, so that the piston 64 moves along the axial direction of the storage tube 61. During this process, the side surface of the piston 64 always remains perpendicular to the central axis of the storage tube 61. This ensures that the piston 64 will not deviate during the process of pushing the liquid food, thereby ensuring the smooth discharge of the liquid food and the stable operation of the feeder.

[0043] See also Figure 2 and Figure 6 As shown, the feeder body 1 is provided with a driven gear 15 capable of driving the second threaded rod 8 to move axially along the central axis of the feeder body 1, and the driven gear 15 is threadedly connected to the second threaded rod 8. The feeder body 1 is provided with a servo motor 7, and the output end of the servo motor 7 is provided with a driving gear 71 capable of meshing with the driven gear 15.

[0044] In the process of driving the second threaded rod 8 to rotate, the servo motor 7 first provides power, and the servo motor 7 drives the driving gear 71 to rotate. Subsequently, the driving gear 71 drives the driven gear 15 to rotate synchronously through the meshing relationship. While the driven gear 15 rotates, the threaded hole at the center of the driven gear 15 and the threaded matching relationship of the second threaded rod 8 are utilized to drive the second threaded rod 8 to move axially along the central axis direction of the feeder body 1.

[0045] See also Figure 7 and Fig.10 As shown, the feeder body 1 is provided with a first mounting seat 14 for mounting a driven gear 15, and the second threaded rod 8 can pass through the first mounting seat 14. The interior of the first mounting seat 14 is provided with a limit block 141 to prevent the second threaded rod 8 from rotating when moving, and the second threaded rod 8 is provided with a limit groove 82 for the limit block 141 to slide.

[0046] In order to achieve stable rotation of the driven gear 15, a first mounting seat 14 is firstly provided on the feeder body 1, and then the driven gear 15 is movably mounted on the outside of the first mounting seat 14, and the driven gear 15 can rotate around the central axis of the first mounting seat 14. When the driving gear 71 drives the driven gear 15 to rotate, the driven gear 15 can maintain a stable rotation state, effectively avoiding the phenomenon of deviation during the rotation process. When the driven gear 15 drives the second threaded rod 8 to move, the limiting groove 82 provided on the second threaded rod 8 cooperates with the limiting block 141 to limit the moving direction of the second threaded rod 8, preventing the second threaded rod 8 from rotating axially following the driven gear 15.

[0047] See also Figure 1 , 2 as well as Fig.11 As shown, a temperature sensing device 5 is provided on the feeder body 1, and the temperature sensing device 5 includes a base 50 fixed on the feeder body 1, and a plurality of temperature sensors 51 are provided on the base 50. The temperature sensors 51 are perpendicular to the central axis of the feeder body 1 and are used to monitor the temperature of the liquid food inside the storage tube 61. The base 50 is also provided with a display 52 that can be electrically connected to the temperature sensor 51 and display the monitoring value.

[0048] During the temperature monitoring process, the temperature sensor 51 can monitor the temperature inside the storage tube 61 in real time. Once the temperature sensor 51 obtains the temperature data, it will immediately transmit the data to the display 52. ​​Subsequently, the display 52 will process the received temperature data and present it in the form of numerical values, so that the user can quickly and accurately obtain the current temperature of the liquid food.

[0049] See also Figure 1 , 6 As shown, a position monitoring device 4 is also provided on the feeder body 1, and the position monitoring device 4 includes a second mounting seat 40 fixed on the feeder body 1 and parallel to the central axis of the feeder body 1, and ultrasonic sensors 41 are equidistantly distributed along the axial direction of the central axis of the feeder body 1 on the second mounting seat 40, which are used to monitor the position of the piston 64 inside the storage tube 61, and an indicator light 42 that can be electrically connected to the ultrasonic sensor 41 and can change color is also provided on the second mounting seat 40.

[0050] During the movement of the piston 64, in order to accurately monitor the position of the piston 64, an ultrasonic sensor 41 is provided on the second mounting seat 40. The ultrasonic sensor 41 emits an ultrasonic signal to monitor the position change of the piston 64. At the same time, the second mounting seat 40 is also electrically connected with an indicator light 42 corresponding to the number of ultrasonic sensors 41, and the indicator light 42 is connected to the ultrasonic sensor 41. When the ultrasonic sensor 41 detects that the position of the piston 64 has changed, the color of the indicator light 42 will change accordingly, thereby intuitively reflecting the current position of the piston 64. In addition, in order to facilitate the user to control the feeding amount, a scale mark is also provided on the second mounting seat 40. The user can accurately judge the position of the piston 64 by observing the color change of the indicator light 42 and combining the scale mark, thereby achieving effective control of the feeding amount.

[0051] See also Figure 5 As shown, a handle 2 is provided at the bottom of the feeder body 1 for easy grasping and operation by the user. A switch button 21 for controlling the start and stop of the servo motor 7 is provided on the handle 2. The switch button 21 is electrically connected to the servo motor 7.

[0052] In order to realize convenient operation of the feeder, the handle 2 is first firmly fixed to the bottom of the feeder body 1. When the feeder needs to be used, the user can conveniently grasp the handle 2. In addition, a switch button 21 is provided on the handle 2. By pressing the switch button 21, the user can control the start of the servo motor 7 by the switch button 21.

[0053] When the present invention is working, first, the storage tube 61 is placed in the feeder body 1, and the first threaded rod 12 is driven to rotate by rotating the knob 121, and then the first threaded rod 12 drives the limit sleeve 3 to axially fix the storage tube 61, and then the switch button 21 is pressed to start the servo motor 7, so that the servo motor 7 drives the driving gear 71 to rotate, the driving gear 71 drives the driven gear 15 to rotate synchronously, and the driven gear 15 drives the second threaded rod 8 to move axially. The push block 81 on the second threaded rod 8 then enters the storage tube 61, cooperates with the adapter groove 642 on the piston 64, pushes the piston 64 to move smoothly along the central axis of the storage tube 61, and pushes the liquid food inside the storage tube 61 evenly. At the same time, the temperature sensor 51 monitors the temperature in the storage tube 61 in real time, and transmits the data to the display 52, so that the user can quickly obtain the current temperature of the liquid food. In addition, the ultrasonic sensor 41 on the second mounting seat 40 emits an ultrasonic signal to monitor the position change of the piston 64, and intuitively reflects the current position of the piston 64 through the color change of the indicator light 42. Combined with the scale markings, the user can accurately control the position of the piston 64, thereby achieving effective control of the feeding amount.

[0054] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A quantitative liquid food feeder, characterized in that: The feeder comprises a feeder body (1), wherein a detachable storage tube (61) is provided on the feeder body (1), a detachable sealing cover (62) is provided at one end of the storage tube (61), a piston (64) is movably provided inside the storage tube (61) for pushing out liquid food, a limiting sleeve (3) is provided on the feeder body (1) and is capable of sliding and fixing the storage tube (61), and a first threaded rod (12) is also provided on the feeder body (1) and is capable of driving the limiting sleeve (3), and the limiting sleeve (3) is mounted on the first threaded rod (12); The piston (64) is provided with a sealing ring (65), which is capable of being in close contact with the inner wall of the storage tube (61), and the circumferential surface of the piston (64) is provided with an annular groove (641) for mounting the sealing ring (65); the feeder body (1) is provided with a rotatable second threaded rod (8), and one end of the second threaded rod (8) is movably provided with a push block (81) capable of driving the piston (64) to move axially along the central axis of the storage tube (61); The feeder body (1) is provided with a driven gear (15) capable of driving the second threaded rod (8) to move axially along the central axis of the feeder body (1), the driven gear (15) being threadedly connected to the second threaded rod (8), the feeder body (1) is provided with a servo motor (7), and the output end of the servo motor (7) is provided with a driving gear (71) capable of meshing with the driven gear (15); The feeder body (1) is provided with a first mounting seat (14) for mounting a driven gear (15); the second threaded rod (8) is capable of passing through the first mounting seat (14); a limit block (141) is provided inside the first mounting seat (14) for preventing the second threaded rod (8) from rotating when moving; and a limit groove (82) is provided on the second threaded rod (8) for the limit block (141) to slide; The feeder body (1) is provided with a clearance groove (11) for mounting a first threaded rod (12); the bottom of the feeder body (1) is provided with a knob (121) for driving the first threaded rod (12) to rotate, and the knob (121) is fixedly arranged on the extended end of the first threaded rod (12); the feeder body (1) is provided with limiting slide grooves (13) on both sides close to the clearance groove (11), and the bottom of the limiting sleeve (3) is slidably arranged inside the limiting slide groove (13); the bottom of the limiting sleeve (3) is provided with a threaded sleeve (32) that can be mounted on the first threaded rod (12), and the bottom of the limiting sleeve (3) is symmetrically provided with sliders (33) that can slide along the limiting slide groove (13) on both sides close to the threaded sleeve (32).

2. A quantitative liquid food feeder according to claim 1, characterized in that: The sealing cover (62) is capable of closing one end of the storage tube (61) and is provided with a discharge tube (63), which can extend to the outside of the feeder body (1). A detachable discharge tube (63) is provided on the output end of the sealing cover (62).

3. A quantitative liquid food feeder according to claim 1, characterized in that: The piston (64) is provided with an adaption groove (642) capable of adapting to the push block (81).

4. A quantitative liquid food feeder according to claim 1, characterized in that: The feeder body (1) is provided with a temperature sensing device (5), the temperature sensing device (5) comprising a base (50) fixed on the feeder body (1), a plurality of temperature sensors (51) being provided on the base (50), the temperature sensors (51) being perpendicular to the central axis of the feeder body (1) and being used to monitor the temperature of the liquid food inside the storage tube (61), and a display (52) being electrically connected to the temperature sensor (51) and displaying the monitored value being also provided on the base (50).

5. A quantitative liquid food feeder according to claim 1, characterized in that: The feeder body (1) is also provided with a position monitoring device (4), the position monitoring device (4) comprising a second mounting seat (40) fixed on the feeder body (1) and parallel to the central axis of the feeder body (1), ultrasonic sensors (41) being equidistantly distributed on the second mounting seat (40) along the axial direction of the central axis of the feeder body (1) for monitoring the position of the piston (64) inside the storage tube (61), and an indicator light (42) which can be electrically connected to the ultrasonic sensor (41) and can change color is also provided on the second mounting seat (40).

6. A quantitative liquid food feeder according to claim 1, characterized in that: A handle (2) is provided at the bottom of the feeder body (1) for easy grasping and operation by a user, and a switch button (21) for controlling the start and stop of the servo motor (7) is provided on the handle (2), and the switch button (21) is electrically connected to the servo motor (7).

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