Automatic pen type injector convenient to disassemble and assemble and used for material injection

Abstract

The utility model discloses an automatic pen type injector convenient to disassemble and assemble for material injection, and relates to the technical field of injectors. The syringe comprises a needle tube, wherein the head part of the needle tube is in threaded connection with a tube head; the upper side wall of the needle tube is covered with a tube cover, the tube cover is connected with the needle tube through an inserting rod, the tube core comprises a large tube core and a small tube core, the large tube core and the small tube core are bonded with each other, a storage battery is embedded in the large tube core, the head of the large tube core is sleeved with a rubber head, and a needle head is contained in the tail end of the small tube core. The tail end of the tail of the small pipe core is further in threaded connection with a blocking plate, an insection plate adheres to the upper side wall of the small pipe core, the tail end of the tail of the needle pipe is in threaded connection with a limiting ring, a motor and a gear are installed on the limiting ring, and the gear is further meshed with the insection plate. According to the utility model, the tube cover and the needle tube are convenient to disassemble and assemble by utilizing the inserting rod, the tube head and the tube core in the tube head are also disassembled and assembled, and a needle head for injection can be stored in a hidden manner by utilizing the tube core, so that the needle head is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of syringes, in particular to an automatic pen-type syringe which is easy to disassemble and assemble and is used for material injection. Background Art

[0002] Syringes are mainly divided into two types: hand-push type and electric-push type. The hand-push syringe consists of three parts: a syringe, a push rod and a needle. Compared with the hand-push syringe, the electric-push syringe has an additional electric drive structure, which drives the push rod to move in the syringe, thereby achieving the effect of outputting or inhaling the material in the syringe.

[0003] A Chinese patent application (or patent) with the announcement number CN220158935U discloses an electronic pen-type injector, which changes the spring-type structure and adopts an electric component to connect the injection component. The electric component includes a driver, a reducer and a rotating part. The injection component includes a push rod and a drug syringe. The push rod is fixedly connected to the rotating part. The drug syringe is fixed to one end of the shell. The push rod moves telescopically along the inner wall of the drug syringe. The rotating part is first driven by the driver and the reducer, and then the push rod is driven to move. The insulin injection is performed by electronic control, which is more convenient for weak users to perform injection operations and can also complete the injection quickly.

[0004] The above-mentioned electronic pen-type injector is provided with a passive part, which converts the rotational action into the telescopic action through the passive part, thereby realizing the absorption and injection action of the material, but the passive parts are composed of small guide rails, bumps, grooves and passive bodies, and it is extremely difficult to disassemble and assemble them when assembled in the injector shell; and an injection assembly is provided on it, which is composed of a push rod and a drug needle tube, but the drug needle tube needs to be equipped with a needle when in use, and the needle is relatively sharp, which is unsafe and easy to lose when carried alone. To this end, we provide an automatic pen-type injector for material injection that is easy to disassemble and assemble to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic pen-type injector for material injection that is easy to disassemble and assemble. By utilizing an insertion rod, it is convenient to disassemble and assemble a tube cover and a needle tube, and it also realizes the disassembly and assembly of a tube head and its inner tube core. By utilizing the tube core, the needle used for injection can be hidden and stored to achieve protection, thereby solving the problems of the above-mentioned electronic pen-type injector.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is an automatic pen-type injector for material injection which is easy to disassemble and assemble, comprising a needle tube, the head of the needle tube is also threadedly connected with a tube head; the upper side wall cover of the needle tube is provided with a tube cover, and the tube cover and the needle tube are connected by an insertion rod, a tube core is arranged inside the tail end of the needle tube, the tube core comprises a large tube core and a small tube core, the large tube core and the small tube core are bonded to each other, a storage battery is embedded inside the large tube core, and a rubber head is sleeved on the head of the large tube core, a needle is accommodated inside the tail end of the small tube core, and a blocking plate is also threadedly connected to the tail end of the small tube core, a toothed plate is bonded to the upper side wall of the small tube core, and the tail end of the needle tube is threadedly connected with a limiting ring, a motor and a gear are installed on the limiting ring, the gear is arranged at the shaft end of the motor, and the gear is also meshed with the toothed plate.

[0008] The utility model is further configured such that a tube ring is bonded to the head of the needle tube, and the tube ring is threadedly connected to the tube head, a card slot is opened on the upper side wall of the needle tube, and insertion rods are inserted at both ends of the card slot, and the card slot on the needle tube is connected to the tube cover through the insertion rod.

[0009] The utility model is further configured that a mounting groove is provided on the limit ring, and a wheel groove is provided on the side of the mounting groove, and the wheel groove is connected to the mounting groove through a circular hole.

[0010] The utility model is further configured that a rotating rod is inserted into the tail end of the installation groove, and the installation groove is rotatably connected to the groove cover through the rotating rod, the groove cover is arranged in the upper side wall of the installation groove, and a control button is also embedded on the groove cover.

[0011] The utility model is further configured such that the bottom side wall of the mounting groove is connected to the motor, and the shaft end of the motor is connected to the shaft rod through a coupling, the shaft rod extends into the wheel groove through the circular hole between the wheel groove and the mounting groove, and the shaft rod is inserted in the center of the gear.

[0012] The utility model is further configured such that a battery slot is opened at the head position of the large tube core, and the storage battery is arranged in the battery slot, and a battery cover is threadedly connected to the head of the battery slot, a limiting plate is also adhered to the outer wall of the large tube core, and the large tube core cooperates with the inner wall of the needle tube through the limiting plate.

[0013] The utility model is further configured that a receiving groove is opened inside the tail end of the small tube core, and the needle is arranged inside the receiving groove, and the head position of the needle is inserted into the rubber pad.

[0014] The utility model is further configured such that a blocking column is threadedly connected to the tail of the receiving groove, and the outer wall of the tail of the blocking column is adhesively connected to a blocking plate, and the diameter of the blocking plate is greater than the diameter of the needle tube.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides a needle tube, a tube cover and a tube head. The top cover of the needle tube is provided with a tube cover, and insertion rods are inserted into the two ends of the tube cover, that is, the tube cover can be disassembled and assembled by pulling out and inserting the insertion rods, and the tube head can be disassembled and assembled by rotating. When the tube cover is removed, the tube core in the needle tube can be dumped out, thereby realizing the disassembly and assembly of the entire syringe, and the disassembly and assembly method is simple and easy.

[0017] The utility model arranges a tube core, which is mainly composed of a large tube core and a small tube core which are bonded to each other. The large tube core is used to store batteries, and the rubber head on the end is used to seal the needle tube. A plurality of needles are embedded in the tail end of the small tube core, and the needles are stuck on the rubber pad. The rubber pad stabilizes the needles, and the space where the needles are located is blocked by a blocking plate and a blocking column. That is, when in use, there is no need to carry the needle separately, and the hidden needle storage can protect the needle to avoid exposure.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The present invention is a schematic diagram of the structure of an automatic pen-type injector for material injection which is easy to disassemble and assemble.

[0021] Figure 2 The present invention is a structural cross-sectional view of an automatic pen-type injector for material injection which is easy to assemble and disassemble.

[0022] Figure 3 The figure shows the structural disassembly of an automatic pen-type injector for material injection that is easy to assemble and disassemble.

[0023] Figure 4 This is a disassembled diagram of the structure of the needle tube, tube cover and tube head.

[0024] Figure 5 This is a structural disassembly diagram of the tube core.

[0025] Figure 6 It is a schematic diagram of the structure of the tube core.

[0026] Figure 7 This is a structural disassembly diagram of the limit ring.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1-needle tube, 101-tube ring, 102-card slot, 103-insertion rod, 2-tube cover, 3-tube head, 4-limiting ring, 401-installation slot, 401a-slot cover, 401b-control button, 402-wheel slot, 403-motor, 403a-shaft rod, 404-gear, 5-blocking plate, 501-blocking column, 6-tube core, 601-large tube core, 601a-battery slot, 601b-limiting plate, 602-small tube core, 602a-toothed plate, 602b-storage slot, 603-needle head, 603a-rubber pad, 604-battery, 604a-battery cover, 605-rubber head. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1, please refer to Figure 1-4 The utility model is an automatic pen-type injector for material injection which is easy to disassemble and assemble, comprising a needle tube 1, a tube cover 2 is provided on the upper cover of the needle tube 1, and a tube head 3 is provided on the head of the needle tube 1, so that the tube cover 2 and the tube head 3 can be easily disassembled and assembled.

[0031] Specifically, a tube ring 101 is bonded to the end of the needle tube 1, and the needle tube 1 is threadedly connected to the tube head 3 through the tube ring 101. An insertion rod 103 is also inserted into the needle tube 1, and the needle tube 1 is plugged into the tube cover 2 through the insertion rod 103.

[0032] Furthermore, a slot 102 is formed on the upper side wall of the needle tube 1 , and the insertion rod 103 is inserted through both ends of the slot 102 , and both ends of the bottom of the tube cover 2 cooperate with the slot 102 .

[0033] The operation process of this embodiment is as follows: tilt the needle tube 1 so that the tail portion is slightly facing downward, and then pour out the insertion rod 103. At that time, the tube cover 2 is freed from the restraint of the insertion rod 103, and the tube cover 2 can be taken out. Then, turn the needle tube 1 over so that the card slot 102 is facing downward, and then tilt the head of the needle tube 1 downward to take out the tube core 6 in the needle tube 1. Finally, rotate the tube head 3 in the opposite direction to take out the tube head 3.

[0034] Example 2, please refer to Figure 5-6On the basis of the specific embodiment 1, a tube core 6 is also provided. The tube core 6 is composed of a large tube core 601 and a small tube core 602 bonded to each other, wherein the large tube core 601 is used to block the needle tube 1, and a battery 604 is embedded therein, and the small tube core 602 is used to increase the length of the tube core 6 for easy pushing and pulling, and a needle 603 is also accommodated therein.

[0035] Specifically, a battery slot 601a for installing a battery 604 is opened at the center of the head of the large tube core 601, and a limiting plate 601b is also bonded to the outer wall of the large tube core 601. A toothed plate 602a is bonded to the upper side wall of the small tube core 602, and a storage slot 602b for storing a needle 603 is opened at the center of the tail, and the head of the needle 603 is inserted into the rubber pad 603a.

[0036] Furthermore, there are four limit plates 601b in total, and they are arranged at four quadrants of the outer wall of the large tube core 601. At the same time, the limit plates 601b are used to hold the large tube core 601 against the inner wall of the needle tube 1. The end of the battery slot 601a is also threadedly connected with a battery cover 604a, and the outer wall of the large tube core 601 is also sleeved with a rubber head 605 for contacting and cooperating with the inner wall of the needle tube 1. The tail of the storage groove 602b is threadedly connected with the blocking column 501, and the tail of the blocking column 501 is bonded with a blocking plate 5.

[0037] The operation process of this embodiment is: point one end of the rubber head 605 on the head of the large tube core 601 toward the needle tube 1, and then push the blocking plate 5 at the tail to push the rubber head 602 into the interior of the needle tube 1. When injection is needed, pull out the blocking plate 5 to allow the small tube core 602 to leak out of the needle tube 1, and rotate the blocking plate 5 to allow the blocking column 501 to separate from the small tube core 602, and then tilt the needle tube 1. At this time, the needle 603 located in the receiving groove 602b will leak out of the receiving groove 602b, and the needle 603 can be taken out, and the needle 603 can be sleeved on the tube head 3. Rotate the blocking plate 5 again so that the blocking column 501 on it is installed on the small tube core 602 again, and the material absorption and injection work can be carried out normally.

[0038] Example 3, please refer to Figure 7 On the basis of the specific embodiment 1 and the specific embodiment 2, a limit ring 4 is further provided, on which a motor 403 is mounted, and a gear 404 is also connected to the shaft end of the motor 403. At the same time, the gear 404 is in contact with the toothed plate 602a on the small tube core 602, thereby achieving the effect of the motor 403 driving the tube core 6 to move in the needle tube 1.

[0039] Specifically, a mounting groove 401 for installing the motor 403 is provided on the limit ring 4, and a groove cover 401a is provided on the mounting groove 401, and a control button 401b is installed on the groove cover 401a, and a wheel groove 402 for accommodating the gear 404 is also provided on the side of the mounting groove 401, and the shaft end of the motor 403 is connected to the wheel center of the gear 404.

[0040] Furthermore, the shaft end of the motor 403 is connected to the shaft rod 403 a through a coupling, and the shaft rod 403 a passes through the side wall between the installation groove 401 and the wheel groove 402 and is connected to the gear 404 .

[0041] The operation process of this embodiment is as follows: press and hold the control button 401b and push it forward, the motor 403 continues to work, release the control button 401b, the control button 401b returns to the initial position in the middle, and the motor 403 also stops working, and when the control button 401b is pressed backward and toggled, the motor 403 rotates in the opposite direction, and when the motor 403 is working, it will rotate the gear 404 through the shaft 403a on the shaft end, and the gear 404 is engaged with the toothed plate 602a, and thus when it rotates, it also generates a pushing force on the toothed plate 602a, pushing the toothed plate 602a to move, and then, the tube core 6 moves in the needle tube 1, and when the tube core 6 moves toward one side of the tube head 3, and the internal liquid chamber of the needle tube 1 shrinks and becomes smaller, then it is in the injection state, otherwise, the material is absorbed.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic pen-type injector for material injection that is easy to assemble and disassemble, comprising a needle tube (1), the head of the needle tube (1) being threadedly connected to a tube head (3); characterized in that: The upper side wall of the needle tube (1) is covered with a tube cover (2), and the tube cover (2) and the needle tube (1) are connected via an insertion rod (103). A tube core (6) is arranged inside the tail end of the needle tube (1), and the tube core (6) includes a large tube core (601) and a small tube core (602). The large tube core (601) and the small tube core (602) are bonded to each other. A storage battery (604) is embedded inside the large tube core (601), and a rubber head (605) is sleeved on the head of the large tube core (601). The small tube core (602) is bonded to the large tube core (601). A needle (603) is housed inside the tail end of the tube core (602), and a blocking plate (5) is threadedly connected to the tail end of the small tube core (602). A toothed plate (602a) is bonded to the upper side wall of the small tube core (602). The tail end of the needle tube (1) is threadedly connected to a limit ring (4), and a motor (403) and a gear (404) are installed on the limit ring (4). The gear (404) is arranged on the shaft end of the motor (403), and the gear (404) is also meshed with the toothed plate (602a).

2. The automatic pen-type injector for material injection that is easy to assemble and disassemble according to claim 1, characterized in that: The head of the needle tube (1) is bonded with a tube ring (101), and the tube ring (101) is threadedly connected to the tube head (3). The upper side wall of the needle tube (1) is provided with a clamping groove (102), and insertion rods (103) are inserted at both ends of the clamping groove (102). The clamping groove (102) on the needle tube (1) is connected to the tube cover (2) via the insertion rod (103).

3. The automatic pen-type injector for material injection that is easy to assemble and disassemble according to claim 1, characterized in that: The limiting ring (4) is provided with a mounting groove (401) on its upper side, and a wheel groove (402) is provided on the side of the mounting groove (401), and the wheel groove (402) is connected to the mounting groove (401) via a circular hole.

4. The easy-to-assemble and disassemble automatic pen-type injector for material injection according to claim 3, characterized in that: A rotating rod is inserted into the rear end of the installation slot (401), and the installation slot (401) is rotatably connected to a slot cover (401a) via the rotating rod. The slot cover (401a) is arranged in the upper side wall of the installation slot (401), and a control button (401b) is also inlaid on the slot cover (401a).

5. The easy-to-assemble and disassemble automatic pen-type injector for material injection according to claim 3, characterized in that: The bottom side wall of the installation groove (401) is connected to the motor (403), and the shaft end of the motor (403) is connected to the shaft rod (403a) through a coupling, and the shaft rod (403a) extends into the wheel groove (402) through the circular hole between the wheel groove (402) and the installation groove (401), and the shaft rod (403a) is inserted at the center of the gear (404).

6. The easy-to-assemble and disassemble automatic pen-type injector for material injection according to claim 1, characterized in that: A battery slot (601a) is provided at the head of the large tube core (601), and a storage battery (604) is arranged in the battery slot (601a). A battery cover (604a) is threadedly connected to the head of the battery slot (601a). A limiting plate (601b) is also bonded to the outer wall of the large tube core (601), and the large tube core (601) cooperates with the inner wall of the needle tube (1) via the limiting plate (601b).

7. The automatic pen-type injector for material injection that is easy to assemble and disassemble according to claim 1, characterized in that: A receiving groove (602b) is provided inside the tail end of the small tube core (602), and the needle (603) is arranged inside the receiving groove (602b), and the head of the needle (603) is inserted into the rubber pad (603a).

8. The easy-to-assemble and disassemble automatic pen-type injector for material injection according to claim 7, characterized in that: The tail of the receiving groove (602b) is threadedly connected to a blocking column (501), and the tail outer wall of the blocking column (501) is adhesively connected to a blocking plate (5), and the diameter of the blocking plate (5) is greater than the diameter of the needle tube (1).

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