High-reliability and low-temperature-resistant hydraulic brake pump

Abstract

The high-reliability and low-temperature-resistant hydraulic brake pump comprises a brake pump cavity, the top of the brake pump cavity is fixedly connected with an oil storage box, the inner wall of the brake pump cavity is connected with a driving assembly in a sliding mode, and the end face of the driving assembly is connected with a connecting structure in a matched mode. The end face, away from the connecting structure, of the driving assembly is in threaded connection with a heating assembly, the connecting structure and the heating assembly penetrate through the two end faces of the brake pump cavity correspondingly, and the heating assembly is smoothly attached to the inner wall, close to the end faces, of the brake pump cavity. The end face connecting position of the brake pump is arranged to be in arc-shaped connection, so that the operation flexibility can be improved and the service life can be prolonged during long-time use of the brake pump, and meanwhile, the heating rod is additionally arranged in the internal piston rod, so that when the hydraulic brake pump is used in a low-temperature environment, the service life of the hydraulic brake pump is prolonged. The heating rod can enable the whole pump body to be used at a proper temperature, and hydraulic oil viscosity caused by low temperature is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic brake pump applications, in particular to a high-reliability and low-temperature-resistant hydraulic brake pump. Background Art

[0002] The forklift hydraulic brake pump is a key component in the forklift's braking system. Its main function is to convert mechanical energy into hydraulic pressure, thereby pushing the brake pads into contact with the brake drum or brake disc to achieve the purpose of deceleration or parking.

[0003] The existing forklift hydraulic brake pump requires a long time to preheat the forklift in a low-temperature working environment, which increases the cost of use. In addition, the hydraulic oil inside the brake pump will become viscous in a low-temperature environment, which is not conducive to use during work and creates a safety hazard. In addition, the piston will become stiff in a low-temperature environment, causing the lateral force of the push rod to cause the metal inner wall inside the brake cylinder to contact the piston and easily wear, thereby reducing the service life of the piston. Therefore, the utility model proposes a high-reliability and low-temperature resistant hydraulic brake pump. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-reliability and low-temperature-resistant hydraulic brake pump. By setting an arc connection at the end face connection of the brake pump, the operational flexibility can be improved and the service life can be increased during long-term use. At the same time, a heating rod is added to the internal piston rod, so that when the hydraulic brake pump is used in a low-temperature environment, the heating rod can keep the entire pump body at a suitable temperature to avoid the viscosity of the hydraulic oil caused by low temperature.

[0005] To solve the above technical problems, the present invention adopts a technical solution: providing a high-reliability and low-temperature-resistant hydraulic brake pump, comprising a brake pump cavity, the top of which is fixedly connected to an oil storage box, an inner wall of which is slidably connected to a drive assembly, an end face of which is cooperatively connected to a connecting structure, and an end face of which is away from the connecting structure and is threadedly connected to a heating assembly;

[0006] The connection structure and the heating component respectively penetrate the two end faces of the brake pump cavity, and the heating component is smoothly fitted to the inner wall of the brake pump cavity near the end face.

[0007] The utility model is further configured as follows: a mounting block is fixedly connected to the outer wall of the brake pump cavity near the end face, a clamping ring is clamped and connected to the inner wall of the brake pump cavity near the end face, and the movement of the drive component is limited by the clamping ring.

[0008] Through the above technical solution, it is convenient to use the mounting block to install and fix the entire brake pump, and the retaining ring can be used to limit and fix the position of the drive component installed inside.

[0009] The utility model is further configured as follows: the bottom of the oil storage box is connected to the interior of the connecting oil port fixedly connected to the top of the brake pump cavity, an oblique bypass port is opened at the bottom edge of the connecting oil port, a compensation hole is opened at the bottom center of the connecting oil port, and the bypass port and the compensation hole are both connected to the interior of the brake pump cavity.

[0010] Through the above technical solution, the oil storage box on the top can easily transfer the internal hydraulic oil into the interior of the brake pump cavity through the bypass port and compensation hole opened inside the connecting oil port, so that during the movement of the internal driving component, the internal hydraulic oil can be discharged into the externally connected oil pipe.

[0011] The present invention is further configured as follows: the driving assembly includes a movable rod, the two end faces of the movable rod are respectively sleeved with a front end piston and a rear end piston, and the outer walls of the front end piston and the rear end piston are respectively fitted against the inner wall of the brake pump cavity, the end face of the rear end piston is tightly provided with a return spring, the end face of the return spring is tightly provided with a protective seat, the end face of the protective seat is fitted against the internal end face position of the brake pump cavity, and is fitted against its inner wall.

[0012] Through the above technical solution, the movable rod drives the front piston and the rear piston to move on the inner wall of the brake pump cavity, so that the internal hydraulic oil enters the externally connected oil pipe through the oil outlet hole axially arranged in the oil outlet groove, and after releasing the connecting push rod, the internal compressed return spring can enable the movable rod to perform a reset operation.

[0013] The utility model is further configured as follows: the connecting structure includes a connecting push rod, the end face of the connecting push rod is arranged to cooperate with the end face of the driving component in an arc shape, the connecting push rod passes through a sealing end cover threadedly connected to the end face of the brake pump cavity, and the end face is fixedly connected to a connecting frame.

[0014] Through the above technical solution, the external structure connected by the connecting frame is used to push the connecting push rod, and in the arc-shaped connecting structure on the end face of the connecting push rod, the internal driving component can achieve smooth linear movement on the inner wall of the brake pump cavity, thereby avoiding the lateral force brought by the connecting push rod to cause wear on the piston inside the driving component.

[0015] The utility model is further configured as follows: the heating assembly includes a heating rod, the end face of the heating rod is fixedly connected to a threaded connection end, the end face of the heating rod is fixedly connected to a sliding rod, and the end face of the sliding rod is slidably connected to a connecting sealing sleeve fixed on the end face of the brake pump cavity.

[0016] Through the above technical solution, the threaded connection end of the heating rod end face is installed on the movable rod end face, and under the sliding action of the sliding rod, the internal movable rod can slide stably and squeeze the internal hydraulic oil into the external oil pipe.

[0017] The utility model is further configured as follows: the heating component is threadedly connected to the end face of the driving component through its threaded connection end, and the oil outlet groove opened on the end face of the brake pump cavity is penetrated by a sliding rod, and the axial surface of the oil outlet groove is provided with multiple oil outlet holes.

[0018] Through the above technical solution, when operating the brake pump, the internal sliding rod can be used to slide on the end surface of the brake pump cavity, and the internal oil is discharged to the inside of the externally connected oil pipe through the oil outlet groove and the oil outlet hole.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The high-reliability, low-temperature-resistant hydraulic brake pump proposed in this utility model has an arc-shaped connection at the end surface connection of the brake pump, thereby improving its operational flexibility and extending its service life during long-term use;

[0021] 2. The utility model proposes a high-reliability and low-temperature-resistant hydraulic brake pump. By adding a heating rod inside the internal piston rod, when the hydraulic brake pump is used in a low-temperature environment, the heating rod can keep the entire pump body at a suitable temperature, thereby avoiding the viscosity of the hydraulic oil caused by low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the first structural diagram of a high-reliability, low-temperature-resistant hydraulic brake pump of the utility model;

[0023] Figure 2 This is the second structural diagram of a high-reliability, low-temperature-resistant hydraulic brake pump of the utility model;

[0024] Figure 3 This is a cross-sectional view of a high-reliability, low-temperature-resistant hydraulic brake pump according to the present invention;

[0025] Figure 4 This is a structural diagram of a drive assembly in a high-reliability, low-temperature-resistant hydraulic brake pump of the utility model.

[0026] In the figure: 1. Brake pump chamber; 11. Mounting block; 12. Retaining ring; 13. Sealing end cover; 14. Oil connection port; 141. Bypass port; 142. Compensating hole; 15. Oil outlet groove; 151. Oil outlet hole; 2. Oil storage box; 3. Drive assembly; 31. Movable rod; 32. Front piston; 33. Rear piston; 34. Return spring; 35. Protective seat; 4. Connecting structure; 41. Connecting push rod; 42. Connecting frame; 5. Heating assembly; 51. Heating rod; 52. Threaded connection end; 53. Sliding rod; 54. Connecting sealing sleeve. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0028] like Figure 1-Figure 4 As shown, a high-reliability and low-temperature-resistant hydraulic brake pump includes a brake pump cavity 1, an outer wall of the brake pump cavity 1 is fixedly connected to a mounting block 11 near the end face, an inner wall of the brake pump cavity 1 is clamped and connected to a clamping ring 12 near the end face, and the clamping ring 12 limits the movement of the drive component 3, so that the entire brake pump can be installed and fixed using the mounting block 11, and the clamping ring 12 can be used to limit the position of the drive component 3 installed inside, the top of the brake pump cavity 1 is fixedly connected to an oil storage box 2, and the bottom of the oil storage box 2 is connected to the brake Inside the connecting oil port 14 fixedly connected to the top of the pump chamber 1, an oblique bypass port 141 is opened at the bottom edge of the connecting oil port 14, and a compensation hole 142 is opened at the bottom center of the connecting oil port 14, and the bypass port 141 and the compensation hole 142 are both connected to the interior of the brake pump chamber 1, so that the top oil storage box 2 can facilitate the internal hydraulic oil to enter the interior of the brake pump chamber 1 through the bypass port 141 and the compensation hole 142 opened inside the connecting oil port 14, so that during the movement of the internal drive component 3, the internal hydraulic oil is discharged to the oil pipe connected to the outside.

[0029] like Figure 3 and Figure 4As shown, the inner wall of the brake pump cavity 1 is slidably connected with a drive assembly 3, and the drive assembly 3 includes a movable rod 31, and the two end faces of the movable rod 31 are respectively sleeved with a front piston 32 and a rear piston 33, and the outer walls of the front piston 32 and the rear piston 33 are respectively fitted against the inner wall of the brake pump cavity 1, and the end face of the rear piston 33 is tightly provided with a return spring 34, and the end face of the return spring 34 is tightly provided with a protective seat 35, and the end face of the protective seat 35 is fitted against the inner end face position of the brake pump cavity 1 and is fitted with its inner wall, so that the movable rod 31 drives the front piston 32 and the rear piston 33 to move on the inner wall of the brake pump cavity 1, so that the internal hydraulic oil passes through The oil outlet hole 151 axially arranged in the oil outlet groove 15 enters the oil pipe connected to the outside, and after releasing the connecting push rod 41, the internally compressed return spring 34 can make the movable rod 31 perform a reset operation, and the end face of the driving component 3 is matched with the connecting structure 4, and the connecting structure 4 includes a connecting push rod 41, and the end face of the connecting push rod 41 is matched with the end face of the driving component 3 in an arc shape. The connecting push rod 41 passes through the sealing end cover 13 threadedly connected to the end face of the brake pump cavity 1, and the end face is fixedly connected to the connecting frame 42, and the external structure connected by the connecting frame 42 is used to push the connecting push rod 41, and in the arc-shaped connection structure of the end face of the connecting push rod 41, the internal driving component 3 is The inner wall of the brake pump cavity 1 realizes smooth linear movement, avoiding the lateral force brought by the connecting push rod 41 to cause wear on the piston inside the driving component 3. The end face of the driving component 3 away from the connecting structure 4 is threadedly connected to the heating component 5, and the heating component 5 includes a heating rod 51. The end face of the heating rod 51 is fixedly connected to a threaded connection end 52. The end face of the heating rod 51 is fixedly connected to a slide rod 53. The end face of the slide rod 53 is slidably connected to a connecting sealing sleeve 54 fixed on the end face of the brake pump cavity 1. The threaded connection end 52 of the end face of the heating rod 51 is installed on the end face of the movable rod 31, and under the sliding action of the slide rod 53, the internal movable rod 31 can slide stably. The internal hydraulic oil is squeezed into the external oil pipe, and the connecting structure 4 and the heating component 5 respectively pass through the two end faces of the brake pump cavity 1, and the heating component 5 is smoothly fitted with the inner wall of the brake pump cavity 1 near the end face. The heating component 5 is threadedly connected to the end face of the driving component 3 through its threaded connection end 52, and the oil outlet groove 15 opened on the end face of the brake pump cavity 1 is penetrated by the sliding rod 53, and the axial surface of the oil outlet groove 15 is provided with multiple oil outlet holes 151, so that when operating the brake pump, the internal sliding rod 53 can be used to slide on the end face of the brake pump cavity 1, and the internal oil is discharged to the inside of the externally connected oil pipe through the oil outlet groove 15 and the oil outlet hole 151.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-reliability, low-temperature-resistant hydraulic brake pump, comprising a brake pump cavity (1), characterized in that: The top of the brake pump cavity (1) is fixedly connected to an oil storage box (2), the inner wall of the brake pump cavity (1) is slidably connected to a drive assembly (3), the end face of the drive assembly (3) is cooperatively connected to a connection structure (4), and the end face of the drive assembly (3) away from the connection structure (4) is threadedly connected to a heating assembly (5); The connection structure (4) and the heating component (5) respectively penetrate the two end faces of the brake pump cavity (1), and the heating component (5) is smoothly fitted to the inner wall of the brake pump cavity (1) near the end face.

2. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 1, characterized in that: The outer wall of the brake pump cavity (1) is fixedly connected to a mounting block (11) near the end surface, and the inner wall of the brake pump cavity (1) is snap-connected to a retaining ring (12) near the end surface, and the movement of the drive component (3) is limited by the retaining ring (12).

3. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 1, characterized in that: The bottom of the oil storage box (2) is connected to the interior of a connecting oil port (14) fixedly connected to the top of the brake pump cavity (1), an oblique bypass port (141) is provided at the bottom edge of the connecting oil port (14), a compensation hole (142) is provided at the bottom center of the connecting oil port (14), and both the bypass port (141) and the compensation hole (142) are connected to the interior of the brake pump cavity (1).

4. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 1, characterized in that: The driving assembly (3) includes a movable rod (31), the two end surfaces of the movable rod (31) are respectively sleeved with a front piston (32) and a rear piston (33), and the outer walls of the front piston (32) and the rear piston (33) are respectively fitted with the inner wall of the brake pump cavity (1), the end surface of the rear piston (33) is tightly provided with a return spring (34), the end surface of the return spring (34) is tightly provided with a protective seat (35), and the end surface of the protective seat (35) is fitted at the inner end surface position of the brake pump cavity (1) and is fitted with the inner wall thereof.

5. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 1, characterized in that: The connecting structure (4) includes a connecting push rod (41), the end face of the connecting push rod (41) and the end face of the driving assembly (3) are arranged in an arc shape, the connecting push rod (41) passes through a sealing end cover (13) threadedly connected to the end face of the brake pump cavity (1), and the end face is fixedly connected to a connecting frame (42).

6. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 1, characterized in that: The heating assembly (5) comprises a heating rod (51), the end surface of the heating rod (51) is fixedly connected to a threaded connection end (52), the end surface of the heating rod (51) is fixedly connected to a sliding rod (53), and the end surface of the sliding rod (53) is slidably connected to a connecting sealing sleeve (54) fixed on the end surface of the brake pump cavity (1).

7. The high-reliability, low-temperature-resistant hydraulic brake pump according to claim 6, characterized in that: The heating component (5) is threadedly connected to the end face of the driving component (3) through its threaded connection end (52), and penetrates the oil outlet groove (15) opened on the end face of the brake pump cavity (1) through the sliding rod (53), and the axial surface of the oil outlet groove (15) is provided with a plurality of oil outlet holes (151).

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