Self-adaptive structure of table type injection pump

Abstract

The utility model discloses a self-adaptive structure of a table type injection pump, and belongs to the technical field of injection pumps. The device comprises an injector mounting block; the top of the injector installation block is provided with a groove used for containing an injector, and the length of the groove is larger than that of an injector cylinder. A front fixing plate is arranged in front of the injector mounting block; the front fixing plate is of a U-shaped structure, and a left branch knot and a right branch knot of the U-shaped structure are symmetrically connected to the left side and the right side of the injector mounting block respectively; threaded holes are formed in the left side and the right side of the injector mounting block. Adjusting grooves are formed in the left branch knot and the right branch knot of the front fixing plate. The adjusting grooves are in one-to-one correspondence with the threaded holes, and the quick-locking screws penetrate through the adjusting grooves to be connected with the threaded holes. The device can be pressed down by the injector boss according to the placing requirement, and it is guaranteed that the injector is horizontally placed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection pumps, in particular to a desktop injection pump adaptive structure. Background Art

[0002] The syringe pump is a volumetric pump that is mainly used for the distribution or delivery of fluids and is widely used in the food, chemical and other industries. When using a syringe pump to transfer liquid, the syringe performs a reciprocating pumping motion to complete the transfer of the liquid. Due to different usage scenarios, the syringes carried by the syringe pump will also be different, including plastic syringes, metal syringes, and glass syringes. The syringe barrel of a glass syringe often has a metal step due to processing problems, causing the syringe to be placed unevenly and affecting the firmness of the clamp. If a depression is processed in the front part of the syringe pump to fix the quick-release clamp, it will also affect the clamping when installing a small syringe. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the above technical problems and provide a table-top syringe pump adaptive structure, which will be pressed down by the syringe boss according to the placement requirements when installing a syringe with a boss, so as to ensure the horizontal placement of the syringe. When installing an ordinary syringe, there is no downward pressure of the boss, and the positioning block does not move, which plays a supporting role in the syringe barrel holding action.

[0004] The utility model adopts the following technical solutions to achieve the above technical effects:

[0005] The table-top syringe pump adaptive structure comprises a syringe mounting block; the top of the syringe mounting block is provided with a groove for accommodating the syringe, and the length of the groove is greater than the length of the syringe barrel;

[0006] A front fixing plate is provided in front of the syringe mounting block; the front fixing plate is a U-shaped structure, and the symmetrical left and right branches of the U-shaped structure are respectively connected to the left and right sides of the syringe mounting block;

[0007] The left and right sides of the syringe mounting block are both provided with threaded holes, and the left and right branches of the front fixing plate are both provided with adjustment slots; the adjustment slots correspond to the threaded holes one by one, and the quick-locking screws pass through the adjustment slots and are connected to the threaded holes;

[0008] A positioning block is also provided between the syringe mounting block and the front fixing plate; a sliding groove is provided on the front side of the syringe mounting block, the positioning block is located in the sliding groove and can move up and down along the sliding groove; a spring is provided between the bottom of the positioning block and the bottom of the sliding groove.

[0009] Furthermore, a guide column is provided at the bottom of the positioning block; a light hole is provided at the bottom of the sliding groove, and an adjusting screw plug is provided at the bottom of the light hole to seal it; the spring is located in the light hole, the top of the spring rests on the guide column, and the bottom rests on the top of the adjusting screw plug.

[0010] Furthermore, the top of the light hole is a constricted structure, the bottom end of the guide column is a pressing part, the diameter of the pressing part is larger than the constricted structure, and the pressing part can move vertically in the light hole; the spring is against the bottom of the pressing part.

[0011] Furthermore, the top of the positioning block is a V-shaped structure.

[0012] Furthermore, the sliding groove is a dovetail-shaped sliding groove or an arc-shaped sliding groove which is wide inside and narrow outside.

[0013] Furthermore, at least two guide posts are provided, and the guide posts are threadedly connected to the positioning blocks.

[0014] Furthermore, the adjusting screw plug is threadedly connected to the light hole.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] Due to the requirements of the manufacturing process, the glass syringe of the utility model has a metal boss at the end of the syringe barrel. When the syringe is installed, the syringe cannot be placed horizontally. In order to ensure the horizontal placement of the syringe when switching to install different syringes, a positioning block that can slide up and down is installed at the supporting part of the syringe mounting block, and it is always kept in a lifted state by a spring. When installing a syringe with a boss, the boss of the syringe will be pressed down according to the placement requirements to ensure the horizontal placement of the syringe. When installing an ordinary syringe, there is no downward pressure of the boss, and the positioning block does not move, which plays a supporting role in the supporting action of the syringe barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the front structure of the syringe mounting block in the utility model;

[0019] Figure 3 This is a schematic diagram of installing a positioning block in a dovetail type sliding groove in this embodiment.

[0020] Figure 4 This is a schematic diagram of installing a positioning block in an arc-shaped sliding groove in this embodiment.

[0021] Figure 5 This is the overall installation diagram.

[0022] Markings in the figure: 1. syringe, 2. syringe mounting block, 3. quick-lock screw, 4. adjustment slot, 5. front fixing plate, 6. positioning block, 7. guide column, 8. adjusting screw plug, 9. sliding slot, 9-1. dovetail sliding slot, 9-2. arc sliding slot, 10. spring. DETAILED DESCRIPTION

[0023] Below, the utility model is further described in conjunction with the accompanying drawings.

[0024] Reference Figures 1 to 5 , the top of the syringe mounting block of this embodiment is provided with a groove for accommodating the syringe, and the length of the groove is greater than the length of the syringe barrel;

[0025] A front fixing plate is provided in front of the syringe mounting block. In this embodiment, a V-shaped opening is provided on the middle branch of the front fixing plate for the piston rod of the syringe to pass through; the front fixing plate is a U-shaped structure, and the symmetrical left and right branches of the U-shaped structure are respectively connected to the left and right sides of the syringe mounting block;

[0026] There are threaded holes on both sides of the syringe mounting block, and there are adjustment slots on the left and right branches of the front fixing plate; the adjustment slots correspond to the threaded holes one by one, and the quick-locking screws pass through the adjustment slots and are connected to the threaded holes;

[0027] A positioning block is also provided between the syringe mounting block and the front fixing plate; a sliding groove is provided on the front side of the syringe mounting block, the positioning block is located in the sliding groove, and can move up and down along the sliding groove; a spring is provided between the bottom of the positioning block and the bottom of the sliding groove. The sliding groove is a dovetail type sliding groove or an arc type sliding groove that is wide inside and narrow outside.

[0028] The positioning block is located in the sliding groove and can move up and down along the sliding groove; a spring is arranged between the bottom of the positioning block and the bottom of the sliding groove. The specific structure is as follows:

[0029] A guide column is provided at the bottom of the positioning block; a light hole is provided at the bottom of the sliding groove, and an adjusting screw plug is provided at the bottom of the light hole to seal the light hole; the spring is located in the light hole, the top of the spring abuts on the guide column, and the bottom abuts on the top of the adjusting screw plug.

[0030] The top of the light hole is a constricted structure, the bottom end of the guide column is a pressing part, the diameter of the pressing part is larger than the constricted structure, and the pressing part can move vertically in the light hole; the spring is against the bottom of the pressing part.

[0031] The top of the positioning block is a V-shaped structure. The adjusting screw plug is threadedly connected with the light hole.

[0032] In order to ensure the horizontal placement of the syringe when switching to install different syringes, a positioning block that can slide up and down is installed at the syringe mounting block support part, and it is always kept in a lifted state by a spring. When installing a syringe with a boss, the syringe boss will be pressed down according to the placement requirements to ensure the horizontal placement of the syringe. When installing an ordinary syringe, there is no downward pressure from the boss, and the positioning block does not move, which supports the syringe barrel support action.

Claims

1. A desktop syringe pump adaptive structure, including a syringe mounting block; characterized in that: The top of the syringe mounting block is provided with a groove for accommodating the syringe, and the length of the groove is greater than the length of the syringe barrel; A front fixing plate is provided in front of the syringe mounting block; the front fixing plate is a U-shaped structure, and the symmetrical left and right branches of the U-shaped structure are respectively connected to the left and right sides of the syringe mounting block; The left and right sides of the syringe mounting block are both provided with threaded holes, and the left and right branches of the front fixing plate are both provided with adjustment slots; the adjustment slots correspond to the threaded holes one by one, and the quick-locking screws pass through the adjustment slots and are connected to the threaded holes; A positioning block is also provided between the syringe mounting block and the front fixing plate; a sliding groove is provided on the front side of the syringe mounting block, the positioning block is located in the sliding groove and can move up and down along the sliding groove; a spring is provided between the bottom of the positioning block and the bottom of the sliding groove.

2. The desktop syringe pump adaptive structure according to claim 1, characterized in that: A guide column is provided at the bottom of the positioning block; a light hole is provided at the bottom of the sliding groove, and an adjusting screw plug is provided at the bottom of the light hole to seal the light hole; the spring is located in the light hole, the top of the spring abuts on the guide column, and the bottom abuts on the top of the adjusting screw plug.

3. The desktop syringe pump adaptive structure according to claim 2, characterized in that: The top of the light hole is a constricted structure, the bottom end of the guide column is a pressing part, the diameter of the pressing part is larger than the constricted structure, and the pressing part can move vertically in the light hole; the spring is against the bottom of the pressing part.

4. The desktop syringe pump adaptive structure according to claim 1, characterized in that: The top of the positioning block is a V-shaped structure.

5. The desktop syringe pump adaptive structure according to claim 1, characterized in that: The sliding groove is a dovetail-shaped sliding groove or an arc-shaped sliding groove which is wide inside and narrow outside.

6. The desktop syringe pump adaptive structure according to claim 2, characterized in that: There are at least two guide posts, which are threadedly connected to the positioning block.

7. The desktop syringe pump adaptive structure according to claim 2, characterized in that: The adjusting screw plug is threadedly connected with the light hole.

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